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MMC core:

Browse Source 
- Fix an error path in the mmc block layer
  - Fix PM domain attachment for the SDIO bus
  - Add support for driver strength selection
  - Increase a delay to let voltage stabilize
  - Add support for disabling write-protect detection
  - Add facility to support re-tuning
  - Re-tune and retry in the recovery path
  - Add reset option for SDIO
  - Consolidations and clean-ups
 
 MMC host:
  - Add Mediatek MMC driver
  - Constify platform_device_id for a couple of hosts
  - Fix modalias to make module auto-loading work for a couple of hosts
  - sdhci: Add support for sdhci-arasan4.9a
  - sdhci: Fix low memory corruption
  - sdhci: Restore behavior while creating OCR mask
  - sdhci: Add a callback to select drive strength
  - sdhci: Fix driver type B and D handling
  - sdhci: Add support for drive strength selection for SPT
  - sdhci: Enable HS400 for some Intel host controllers
  - sdhci: Convert to use the new re-tuning facility
  - sdhci: Various minor fixes and clean-ups
  - dw_mmc: Add support for hi6220
  - dw_mmc: Use core to handle absent write protect line
  - dw_mmc: Add support to switch voltage
  - tmio: Some fixes and modernizations
  - sh_mmcif: Improve clock rate calculation
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Merge tag 'mmc-v4.2' of git://git.linaro.org/people/ulf.hansson/mmc

Pull MMC updates from Ulf Hansson:
 "Here are the changes for MMC for v4.2.

  MMC core:
   - Fix an error path in the mmc block layer
   - Fix PM domain attachment for the SDIO bus
   - Add support for driver strength selection
   - Increase a delay to let voltage stabilize
   - Add support for disabling write-protect detection
   - Add facility to support re-tuning
   - Re-tune and retry in the recovery path
   - Add reset option for SDIO
   - Consolidations and clean-ups

  MMC host:
   - Add Mediatek MMC driver
   - Constify platform_device_id for a couple of hosts
   - Fix modalias to make module auto-loading work for a couple of hosts
   - sdhci: Add support for sdhci-arasan4.9a
   - sdhci: Fix low memory corruption
   - sdhci: Restore behavior while creating OCR mask
   - sdhci: Add a callback to select drive strength
   - sdhci: Fix driver type B and D handling
   - sdhci: Add support for drive strength selection for SPT
   - sdhci: Enable HS400 for some Intel host controllers
   - sdhci: Convert to use the new re-tuning facility
   - sdhci: Various minor fixes and clean-ups
   - dw_mmc: Add support for hi6220
   - dw_mmc: Use core to handle absent write protect line
   - dw_mmc: Add support to switch voltage
   - tmio: Some fixes and modernizations
   - sh_mmcif: Improve clock rate calculation"

* tag 'mmc-v4.2' of git://git.linaro.org/people/ulf.hansson/mmc: (98 commits)
  mmc: queue: prevent soft lockups on PREEMPT=n
  mmc: mediatek: Add PM support for MMC driver
  mmc: mediatek: Add Mediatek MMC driver
  mmc: dt-bindings: add Mediatek MMC bindings
  mmc: card: Fixup request missing in mmc_blk_issue_rw_rq
  mmc: sdhci: fix low memory corruption
  mmc: sdhci-pci: Change AMD SDHCI quirk application scope
  i2c-piix4: Use Macro for AMD CZ SMBus device ID
  pci_ids: Add AMD KERNCZ device ID support
  mmc: queue: use swap() in mmc_queue_thread()
  mmc: dw_mmc: insmod followed by rmmod will hung for eMMC
  mmc: sdhci: Restore behavior while creating OCR mask
  mmc: sdhci-pxav3: fix device wakeup initialization
  mmc: core: Attach PM domain prior probing of SDIO func driver
  mmc: core: Remove redundant ->power_restore() callback for SD
  mmc: core: Remove redundant ->power_restore() callback for MMC
  mmc: sdhci-bcm2835: Actually enable the clock
  mmc: sdhci-bcm2835: Clean up platform allocations if sdhci init fails.
  mmc: sdhci-of-esdhc: enable interrupt mode to detect card
  mmc: sdhci-esdhc-imx: add quirk SDHCI_QUIRK2_BROKEN_HS200 for imx6qdl
  ...
This commit is contained in:
Linus Torvalds 2015-06-23 13:38:04 -07:00
commit a57f14bac0
67 changed files with 2727 additions and 607 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
Documentation/devicetree/bindings/mmc/arasan,sdhci.txt
View File

@ -8,7 +8,8 @@ Device Tree Bindings for the Arasan SDHCI Controller
[3] Documentation/devicetree/bindings/interrupt-controller/interrupts.txt
Required Properties:
- compatible: Compatibility string. Must be 'arasan,sdhci-8.9a'
- compatible: Compatibility string. Must be 'arasan,sdhci-8.9a' or
'arasan,sdhci-4.9a'
- reg: From mmc bindings: Register location and length.
- clocks: From clock bindings: Handles to clock inputs.
- clock-names: From clock bindings: Tuple including "clk_xin" and "clk_ahb"

9
Documentation/devicetree/bindings/mmc/fsl-imx-esdhc.txt
View File

@ -7,7 +7,14 @@ This file documents differences between the core properties described
by mmc.txt and the properties used by the sdhci-esdhc-imx driver.
Required properties:
- compatible : Should be "fsl,<chip>-esdhc"
- compatible : Should be "fsl,<chip>-esdhc", the supported chips include
"fsl,imx25-esdhc"
"fsl,imx35-esdhc"
"fsl,imx51-esdhc"
"fsl,imx53-esdhc"
"fsl,imx6q-usdhc"
"fsl,imx6sl-usdhc"
"fsl,imx6sx-usdhc"
Optional properties:
- fsl,cd-controller : Indicate to use controller internal card detection

28
Documentation/devicetree/bindings/mmc/k3-dw-mshc.txt
View File

@ -13,6 +13,10 @@ Required Properties:
* compatible: should be one of the following.
- "hisilicon,hi4511-dw-mshc": for controllers with hi4511 specific extensions.
- "hisilicon,hi6220-dw-mshc": for controllers with hi6220 specific extensions.
Optional Properties:
- hisilicon,peripheral-syscon: phandle of syscon used to control peripheral.
Example:
@ -42,3 +46,27 @@ Example:
cap-mmc-highspeed;
cap-sd-highspeed;
};
/* for Hi6220 */
dwmmc_1: dwmmc1@f723e000 {
compatible = "hisilicon,hi6220-dw-mshc";
num-slots = <0x1>;
bus-width = <0x4>;
disable-wp;
cap-sd-highspeed;
sd-uhs-sdr12;
sd-uhs-sdr25;
card-detect-delay = <200>;
hisilicon,peripheral-syscon = <&ao_ctrl>;
reg = <0x0 0xf723e000 0x0 0x1000>;
interrupts = <0x0 0x49 0x4>;
clocks = <&clock_sys HI6220_MMC1_CIUCLK>, <&clock_sys HI6220_MMC1_CLK>;
clock-names = "ciu", "biu";
cd-gpios = <&gpio1 0 1>;
pinctrl-names = "default", "idle";
pinctrl-0 = <&sd_pmx_func &sd_clk_cfg_func &sd_cfg_func>;
pinctrl-1 = <&sd_pmx_idle &sd_clk_cfg_idle &sd_cfg_idle>;
vqmmc-supply = <&ldo7>;
vmmc-supply = <&ldo10>;
};

4
Documentation/devicetree/bindings/mmc/mmc-pwrseq-simple.txt
View File

@ -21,5 +21,7 @@ Example:
sdhci0_pwrseq {
compatible = "mmc-pwrseq-simple";
reset-gpios = <&gpio1 12 0>;
reset-gpios = <&gpio1 12 GPIO_ACTIVE_LOW>;
clocks = <&clk_32768_ck>;
clock-names = "ext_clock";
}

5
Documentation/devicetree/bindings/mmc/mmc.txt
View File

@ -21,6 +21,11 @@ Optional properties:
below for the case, when a GPIO is used for the CD line
- wp-inverted: when present, polarity on the WP line is inverted. See the note
below for the case, when a GPIO is used for the WP line
- disable-wp: When set no physical WP line is present. This property should
only be specified when the controller has a dedicated write-protect
detection logic. If a GPIO is always used for the write-protect detection
logic it is sufficient to not specify wp-gpios property in the absence of a WP
line.
- max-frequency: maximum operating clock frequency
- no-1-8-v: when present, denotes that 1.8v card voltage is not supported on
this system, even if the controller claims it is.

32
Documentation/devicetree/bindings/mmc/mtk-sd.txt Normal file
View File

@ -0,0 +1,32 @@
* MTK MMC controller
The MTK MSDC can act as a MMC controller
to support MMC, SD, and SDIO types of memory cards.
This file documents differences between the core properties in mmc.txt
and the properties used by the msdc driver.
Required properties:
- compatible: Should be "mediatek,mt8173-mmc","mediatek,mt8135-mmc"
- interrupts: Should contain MSDC interrupt number
- clocks: MSDC source clock, HCLK
- clock-names: "source", "hclk"
- pinctrl-names: should be "default", "state_uhs"
- pinctrl-0: should contain default/high speed pin ctrl
- pinctrl-1: should contain uhs mode pin ctrl
- vmmc-supply: power to the Core
- vqmmc-supply: power to the IO
Examples:
mmc0: mmc@11230000 {
compatible = "mediatek,mt8173-mmc", "mediatek,mt8135-mmc";
reg = <0 0x11230000 0 0x108>;
interrupts = <GIC_SPI 39 IRQ_TYPE_LEVEL_LOW>;
vmmc-supply = <&mt6397_vemc_3v3_reg>;
vqmmc-supply = <&mt6397_vio18_reg>;
clocks = <&pericfg CLK_PERI_MSDC30_0>, <&topckgen CLK_TOP_MSDC50_0_H_SEL>;
clock-names = "source", "hclk";
pinctrl-names = "default", "state_uhs";
pinctrl-0 = <&mmc0_pins_default>;
pinctrl-1 = <&mmc0_pins_uhs>;
};

3
Documentation/devicetree/bindings/mmc/renesas,mmcif.txt
View File

@ -18,6 +18,8 @@ Required properties:
dma-names property.
- dma-names: must contain "tx" for the transmit DMA channel and "rx" for the
receive DMA channel.
- max-frequency: Maximum operating clock frequency, driver uses default clock
frequency if it is not set.
Example: R8A7790 (R-Car H2) MMCIF0
@ -29,4 +31,5 @@ Example: R8A7790 (R-Car H2) MMCIF0
clocks = <&mstp3_clks R8A7790_CLK_MMCIF0>;
dmas = <&dmac0 0xd1>, <&dmac0 0xd2>;
dma-names = "tx", "rx";
max-frequency = <97500000>;
};

2
MAINTAINERS
View File

@ -10033,7 +10033,7 @@ F: include/linux/toshiba.h
F: include/uapi/linux/toshiba.h
TMIO MMC DRIVER
M: Ian Molton <ian.molton@codethink.co.uk>
M: Ian Molton <ian@mnementh.co.uk>
L: linux-mmc@vger.kernel.org
S: Maintained
F: drivers/mmc/host/tmio_mmc*

1
arch/powerpc/boot/dts/fsl/p2041si-post.dtsi
View File

@ -370,6 +370,7 @@ spi@110000 {
/include/ "qoriq-esdhc-0.dtsi"
sdhc@114000 {
compatible = "fsl,p2041-esdhc", "fsl,esdhc";
fsl,iommu-parent = <&pamu1>;
fsl,liodn-reg = <&guts 0x530>; /* eSDHCLIODNR */
sdhci,auto-cmd12;

1
arch/powerpc/boot/dts/fsl/p3041si-post.dtsi
View File

@ -397,6 +397,7 @@ spi@110000 {
/include/ "qoriq-esdhc-0.dtsi"
sdhc@114000 {
compatible = "fsl,p3041-esdhc", "fsl,esdhc";
fsl,iommu-parent = <&pamu1>;
fsl,liodn-reg = <&guts 0x530>; /* eSDHCLIODNR */
sdhci,auto-cmd12;

1
arch/powerpc/boot/dts/fsl/p4080si-post.dtsi
View File

@ -469,6 +469,7 @@ spi@110000 {
/include/ "qoriq-esdhc-0.dtsi"
sdhc@114000 {
compatible = "fsl,p4080-esdhc", "fsl,esdhc";
fsl,iommu-parent = <&pamu1>;
fsl,liodn-reg = <&guts 0x530>; /* eSDHCLIODNR */
voltage-ranges = <3300 3300>;

1
arch/powerpc/boot/dts/fsl/p5020si-post.dtsi
View File

@ -384,6 +384,7 @@ spi@110000 {
/include/ "qoriq-esdhc-0.dtsi"
sdhc@114000 {
compatible = "fsl,p5020-esdhc", "fsl,esdhc";
fsl,iommu-parent = <&pamu1>;
fsl,liodn-reg = <&guts 0x530>; /* eSDHCLIODNR */
sdhci,auto-cmd12;

1
arch/powerpc/boot/dts/fsl/p5040si-post.dtsi
View File

@ -362,6 +362,7 @@ spi@110000 {
/include/ "qoriq-esdhc-0.dtsi"
sdhc@114000 {
compatible = "fsl,p5040-esdhc", "fsl,esdhc";
fsl,iommu-parent = <&pamu2>;
fsl,liodn-reg = <&guts 0x530>; /* eSDHCLIODNR */
sdhci,auto-cmd12;

4
drivers/i2c/busses/i2c-piix4.c
View File

@ -245,7 +245,7 @@ static int piix4_setup_sb800(struct pci_dev *PIIX4_dev,
PIIX4_dev->device == PCI_DEVICE_ID_AMD_HUDSON2_SMBUS &&
PIIX4_dev->revision >= 0x41) ||
(PIIX4_dev->vendor == PCI_VENDOR_ID_AMD &&
PIIX4_dev->device == 0x790b &&
PIIX4_dev->device == PCI_DEVICE_ID_AMD_KERNCZ_SMBUS &&
PIIX4_dev->revision >= 0x49))
smb_en = 0x00;
else
@ -545,7 +545,7 @@ static const struct pci_device_id piix4_ids[] = {
{ PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_IXP400_SMBUS) },
{ PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_SBX00_SMBUS) },
{ PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_HUDSON2_SMBUS) },
{ PCI_DEVICE(PCI_VENDOR_ID_AMD, 0x790b) },
{ PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_KERNCZ_SMBUS) },
{ PCI_DEVICE(PCI_VENDOR_ID_SERVERWORKS,
PCI_DEVICE_ID_SERVERWORKS_OSB4) },
{ PCI_DEVICE(PCI_VENDOR_ID_SERVERWORKS,

25
drivers/mmc/card/block.c
View File

@ -913,6 +913,9 @@ static int mmc_blk_cmd_recovery(struct mmc_card *card, struct request *req,
if (!err)
break;
/* Re-tune if needed */
mmc_retune_recheck(card->host);
prev_cmd_status_valid = false;
pr_err("%s: error %d sending status command, %sing\n",
req->rq_disk->disk_name, err, retry ? "retry" : "abort");
@ -1204,6 +1207,7 @@ static int mmc_blk_err_check(struct mmc_card *card,
mmc_active);
struct mmc_blk_request *brq = &mq_mrq->brq;
struct request *req = mq_mrq->req;
int need_retune = card->host->need_retune;
int ecc_err = 0, gen_err = 0;
/*
@ -1271,6 +1275,12 @@ static int mmc_blk_err_check(struct mmc_card *card,
}
if (brq->data.error) {
if (need_retune && !brq->retune_retry_done) {
pr_info("%s: retrying because a re-tune was needed\n",
req->rq_disk->disk_name);
brq->retune_retry_done = 1;
return MMC_BLK_RETRY;
}
pr_err("%s: error %d transferring data, sector %u, nr %u, cmd response %#x, card status %#x\n",
req->rq_disk->disk_name, brq->data.error,
(unsigned)blk_rq_pos(req),
@ -1830,7 +1840,7 @@ static int mmc_blk_issue_rw_rq(struct mmc_queue *mq, struct request *rqc)
struct mmc_blk_data *md = mq->data;
struct mmc_card *card = md->queue.card;
struct mmc_blk_request *brq = &mq->mqrq_cur->brq;
int ret = 1, disable_multi = 0, retry = 0, type;
int ret = 1, disable_multi = 0, retry = 0, type, retune_retry_done = 0;
enum mmc_blk_status status;
struct mmc_queue_req *mq_rq;
struct request *req = rqc;
@ -1910,10 +1920,13 @@ static int mmc_blk_issue_rw_rq(struct mmc_queue *mq, struct request *rqc)
break;
case MMC_BLK_CMD_ERR:
ret = mmc_blk_cmd_err(md, card, brq, req, ret);
if (!mmc_blk_reset(md, card->host, type))
break;
goto cmd_abort;
if (mmc_blk_reset(md, card->host, type))
goto cmd_abort;
if (!ret)
goto start_new_req;
break;
case MMC_BLK_RETRY:
retune_retry_done = brq->retune_retry_done;
if (retry++ < 5)
break;
/* Fall through */
@ -1976,6 +1989,7 @@ static int mmc_blk_issue_rw_rq(struct mmc_queue *mq, struct request *rqc)
mmc_start_req(card->host,
&mq_rq->mmc_active, NULL);
}
mq_rq->brq.retune_retry_done = retune_retry_done;
}
} while (ret);
@ -2217,7 +2231,8 @@ static struct mmc_blk_data *mmc_blk_alloc(struct mmc_card *card)
* The CSD capacity field is in units of read_blkbits.
* set_capacity takes units of 512 bytes.
*/
size = card->csd.capacity << (card->csd.read_blkbits - 9);
size = (typeof(sector_t))card->csd.capacity
<< (card->csd.read_blkbits - 9);
}
return mmc_blk_alloc_req(card, &card->dev, size, false, NULL,

104
drivers/mmc/card/mmc_test.c
View File

@ -268,8 +268,6 @@ static int mmc_test_wait_busy(struct mmc_test_card *test)
static int mmc_test_buffer_transfer(struct mmc_test_card *test,
u8 *buffer, unsigned addr, unsigned blksz, int write)
{
int ret;
struct mmc_request mrq = {0};
struct mmc_command cmd = {0};
struct mmc_command stop = {0};
@ -292,11 +290,7 @@ static int mmc_test_buffer_transfer(struct mmc_test_card *test,
if (data.error)
return data.error;
ret = mmc_test_wait_busy(test);
if (ret)
return ret;
return 0;
return mmc_test_wait_busy(test);
}
static void mmc_test_free_mem(struct mmc_test_mem *mem)
@ -826,9 +820,7 @@ static int mmc_test_nonblock_transfer(struct mmc_test_card *test,
mmc_test_nonblock_reset(&mrq1, &cmd1,
&stop1, &data1);
}
done_areq = cur_areq;
cur_areq = other_areq;
other_areq = done_areq;
swap(cur_areq, other_areq);
dev_addr += blocks;
}
@ -994,11 +986,7 @@ static int mmc_test_basic_write(struct mmc_test_card *test)
sg_init_one(&sg, test->buffer, 512);
ret = mmc_test_simple_transfer(test, &sg, 1, 0, 1, 512, 1);
if (ret)
return ret;
return 0;
return mmc_test_simple_transfer(test, &sg, 1, 0, 1, 512, 1);
}
static int mmc_test_basic_read(struct mmc_test_card *test)
@ -1012,44 +1000,29 @@ static int mmc_test_basic_read(struct mmc_test_card *test)
sg_init_one(&sg, test->buffer, 512);
ret = mmc_test_simple_transfer(test, &sg, 1, 0, 1, 512, 0);
if (ret)
return ret;
return 0;
return mmc_test_simple_transfer(test, &sg, 1, 0, 1, 512, 0);
}
static int mmc_test_verify_write(struct mmc_test_card *test)
{
int ret;
struct scatterlist sg;
sg_init_one(&sg, test->buffer, 512);
ret = mmc_test_transfer(test, &sg, 1, 0, 1, 512, 1);
if (ret)
return ret;
return 0;
return mmc_test_transfer(test, &sg, 1, 0, 1, 512, 1);
}
static int mmc_test_verify_read(struct mmc_test_card *test)
{
int ret;
struct scatterlist sg;
sg_init_one(&sg, test->buffer, 512);
ret = mmc_test_transfer(test, &sg, 1, 0, 1, 512, 0);
if (ret)
return ret;
return 0;
return mmc_test_transfer(test, &sg, 1, 0, 1, 512, 0);
}
static int mmc_test_multi_write(struct mmc_test_card *test)
{
int ret;
unsigned int size;
struct scatterlist sg;
@ -1066,16 +1039,11 @@ static int mmc_test_multi_write(struct mmc_test_card *test)
sg_init_one(&sg, test->buffer, size);
ret = mmc_test_transfer(test, &sg, 1, 0, size/512, 512, 1);
if (ret)
return ret;
return 0;
return mmc_test_transfer(test, &sg, 1, 0, size/512, 512, 1);
}
static int mmc_test_multi_read(struct mmc_test_card *test)
{
int ret;
unsigned int size;
struct scatterlist sg;
@ -1092,11 +1060,7 @@ static int mmc_test_multi_read(struct mmc_test_card *test)
sg_init_one(&sg, test->buffer, size);
ret = mmc_test_transfer(test, &sg, 1, 0, size/512, 512, 0);
if (ret)
return ret;
return 0;
return mmc_test_transfer(test, &sg, 1, 0, size/512, 512, 0);
}
static int mmc_test_pow2_write(struct mmc_test_card *test)
@ -1263,11 +1227,7 @@ static int mmc_test_xfersize_write(struct mmc_test_card *test)
if (ret)
return ret;
ret = mmc_test_broken_transfer(test, 1, 512, 1);
if (ret)
return ret;
return 0;
return mmc_test_broken_transfer(test, 1, 512, 1);
}
static int mmc_test_xfersize_read(struct mmc_test_card *test)
@ -1278,11 +1238,7 @@ static int mmc_test_xfersize_read(struct mmc_test_card *test)
if (ret)
return ret;
ret = mmc_test_broken_transfer(test, 1, 512, 0);
if (ret)
return ret;
return 0;
return mmc_test_broken_transfer(test, 1, 512, 0);
}
static int mmc_test_multi_xfersize_write(struct mmc_test_card *test)
@ -1296,11 +1252,7 @@ static int mmc_test_multi_xfersize_write(struct mmc_test_card *test)
if (ret)
return ret;
ret = mmc_test_broken_transfer(test, 2, 512, 1);
if (ret)
return ret;
return 0;
return mmc_test_broken_transfer(test, 2, 512, 1);
}
static int mmc_test_multi_xfersize_read(struct mmc_test_card *test)
@ -1314,48 +1266,33 @@ static int mmc_test_multi_xfersize_read(struct mmc_test_card *test)
if (ret)
return ret;
ret = mmc_test_broken_transfer(test, 2, 512, 0);
if (ret)
return ret;
return 0;
return mmc_test_broken_transfer(test, 2, 512, 0);
}
#ifdef CONFIG_HIGHMEM
static int mmc_test_write_high(struct mmc_test_card *test)
{
int ret;
struct scatterlist sg;
sg_init_table(&sg, 1);
sg_set_page(&sg, test->highmem, 512, 0);
ret = mmc_test_transfer(test, &sg, 1, 0, 1, 512, 1);
if (ret)
return ret;
return 0;
return mmc_test_transfer(test, &sg, 1, 0, 1, 512, 1);
}
static int mmc_test_read_high(struct mmc_test_card *test)
{
int ret;
struct scatterlist sg;
sg_init_table(&sg, 1);
sg_set_page(&sg, test->highmem, 512, 0);
ret = mmc_test_transfer(test, &sg, 1, 0, 1, 512, 0);
if (ret)
return ret;
return 0;
return mmc_test_transfer(test, &sg, 1, 0, 1, 512, 0);
}
static int mmc_test_multi_write_high(struct mmc_test_card *test)
{
int ret;
unsigned int size;
struct scatterlist sg;
@ -1373,16 +1310,11 @@ static int mmc_test_multi_write_high(struct mmc_test_card *test)
sg_init_table(&sg, 1);
sg_set_page(&sg, test->highmem, size, 0);
ret = mmc_test_transfer(test, &sg, 1, 0, size/512, 512, 1);
if (ret)
return ret;
return 0;
return mmc_test_transfer(test, &sg, 1, 0, size/512, 512, 1);
}
static int mmc_test_multi_read_high(struct mmc_test_card *test)
{
int ret;
unsigned int size;
struct scatterlist sg;
@ -1400,11 +1332,7 @@ static int mmc_test_multi_read_high(struct mmc_test_card *test)
sg_init_table(&sg, 1);
sg_set_page(&sg, test->highmem, size, 0);
ret = mmc_test_transfer(test, &sg, 1, 0, size/512, 512, 0);
if (ret)
return ret;
return 0;
return mmc_test_transfer(test, &sg, 1, 0, size/512, 512, 0);
}
#else

6
drivers/mmc/card/queue.c
View File

@ -56,7 +56,6 @@ static int mmc_queue_thread(void *d)
down(&mq->thread_sem);
do {
struct request *req = NULL;
struct mmc_queue_req *tmp;
unsigned int cmd_flags = 0;
spin_lock_irq(q->queue_lock);
@ -69,6 +68,7 @@ static int mmc_queue_thread(void *d)
set_current_state(TASK_RUNNING);
cmd_flags = req ? req->cmd_flags : 0;
mq->issue_fn(mq, req);
cond_resched();
if (mq->flags & MMC_QUEUE_NEW_REQUEST) {
mq->flags &= ~MMC_QUEUE_NEW_REQUEST;
continue; /* fetch again */
@ -86,9 +86,7 @@ static int mmc_queue_thread(void *d)
mq->mqrq_prev->brq.mrq.data = NULL;
mq->mqrq_prev->req = NULL;
tmp = mq->mqrq_prev;
mq->mqrq_prev = mq->mqrq_cur;
mq->mqrq_cur = tmp;
swap(mq->mqrq_prev, mq->mqrq_cur);
} else {
if (kthread_should_stop()) {
set_current_state(TASK_RUNNING);

1
drivers/mmc/card/queue.h
View File

@ -12,6 +12,7 @@ struct mmc_blk_request {
struct mmc_command cmd;
struct mmc_command stop;
struct mmc_data data;
int retune_retry_done;
};
enum mmc_packed_type {

100
drivers/mmc/core/core.c
View File

@ -133,6 +133,12 @@ void mmc_request_done(struct mmc_host *host, struct mmc_request *mrq)
struct mmc_command *cmd = mrq->cmd;
int err = cmd->error;
/* Flag re-tuning needed on CRC errors */
if (err == -EILSEQ || (mrq->sbc && mrq->sbc->error == -EILSEQ) ||
(mrq->data && mrq->data->error == -EILSEQ) ||
(mrq->stop && mrq->stop->error == -EILSEQ))
mmc_retune_needed(host);
if (err && cmd->retries && mmc_host_is_spi(host)) {
if (cmd->resp[0] & R1_SPI_ILLEGAL_COMMAND)
cmd->retries = 0;
@ -186,12 +192,29 @@ void mmc_request_done(struct mmc_host *host, struct mmc_request *mrq)
EXPORT_SYMBOL(mmc_request_done);
static void __mmc_start_request(struct mmc_host *host, struct mmc_request *mrq)
{
int err;
/* Assumes host controller has been runtime resumed by mmc_claim_host */
err = mmc_retune(host);
if (err) {
mrq->cmd->error = err;
mmc_request_done(host, mrq);
return;
}
host->ops->request(host, mrq);
}
static int mmc_start_request(struct mmc_host *host, struct mmc_request *mrq)
{
#ifdef CONFIG_MMC_DEBUG
unsigned int i, sz;
struct scatterlist *sg;
#endif
mmc_retune_hold(host);
if (mmc_card_removed(host->card))
return -ENOMEDIUM;
@ -252,7 +275,7 @@ static int mmc_start_request(struct mmc_host *host, struct mmc_request *mrq)
}
mmc_host_clk_hold(host);
led_trigger_event(host->led, LED_FULL);
host->ops->request(host, mrq);
__mmc_start_request(host, mrq);
return 0;
}
@ -301,12 +324,15 @@ void mmc_start_bkops(struct mmc_card *card, bool from_exception)
use_busy_signal = false;
}
mmc_retune_hold(card->host);
err = __mmc_switch(card, EXT_CSD_CMD_SET_NORMAL,
EXT_CSD_BKOPS_START, 1, timeout,
use_busy_signal, true, false);
if (err) {
pr_warn("%s: Error %d starting bkops\n",
mmc_hostname(card->host), err);
mmc_retune_release(card->host);
goto out;
}
@ -317,6 +343,8 @@ void mmc_start_bkops(struct mmc_card *card, bool from_exception)
*/
if (!use_busy_signal)
mmc_card_set_doing_bkops(card);
else
mmc_retune_release(card->host);
out:
mmc_release_host(card->host);
}
@ -417,22 +445,22 @@ static int mmc_wait_for_data_req_done(struct mmc_host *host,
host->areq);
break; /* return err */
} else {
mmc_retune_recheck(host);
pr_info("%s: req failed (CMD%u): %d, retrying...\n",
mmc_hostname(host),
cmd->opcode, cmd->error);
cmd->retries--;
cmd->error = 0;
host->ops->request(host, mrq);
__mmc_start_request(host, mrq);
continue; /* wait for done/new event again */
}
} else if (context_info->is_new_req) {
context_info->is_new_req = false;
if (!next_req) {
err = MMC_BLK_NEW_REQUEST;
break; /* return err */
}
if (!next_req)
return MMC_BLK_NEW_REQUEST;
}
}
mmc_retune_release(host);
return err;
}
@ -467,12 +495,16 @@ static void mmc_wait_for_req_done(struct mmc_host *host,
mmc_card_removed(host->card))
break;
mmc_retune_recheck(host);
pr_debug("%s: req failed (CMD%u): %d, retrying...\n",
mmc_hostname(host), cmd->opcode, cmd->error);
cmd->retries--;
cmd->error = 0;
host->ops->request(host, mrq);
__mmc_start_request(host, mrq);
}
mmc_retune_release(host);
}
/**
@ -728,6 +760,7 @@ int mmc_stop_bkops(struct mmc_card *card)
*/
if (!err || (err == -EINVAL)) {
mmc_card_clr_doing_bkops(card);
mmc_retune_release(card->host);
err = 0;
}
@ -1109,6 +1142,8 @@ int mmc_execute_tuning(struct mmc_card *card)
if (err)
pr_err("%s: tuning execution failed\n", mmc_hostname(host));
else
mmc_retune_enable(host);
return err;
}
@ -1140,6 +1175,8 @@ void mmc_set_bus_width(struct mmc_host *host, unsigned int width)
*/
void mmc_set_initial_state(struct mmc_host *host)
{
mmc_retune_disable(host);
if (mmc_host_is_spi(host))
host->ios.chip_select = MMC_CS_HIGH;
else
@ -1147,6 +1184,7 @@ void mmc_set_initial_state(struct mmc_host *host)
host->ios.bus_mode = MMC_BUSMODE_PUSHPULL;
host->ios.bus_width = MMC_BUS_WIDTH_1;
host->ios.timing = MMC_TIMING_LEGACY;
host->ios.drv_type = 0;
mmc_set_ios(host);
}
@ -1551,8 +1589,8 @@ int mmc_set_signal_voltage(struct mmc_host *host, int signal_voltage, u32 ocr)
goto power_cycle;
}
/* Keep clock gated for at least 5 ms */
mmc_delay(5);
/* Keep clock gated for at least 10 ms, though spec only says 5 ms */
mmc_delay(10);
host->ios.clock = clock;
mmc_set_ios(host);
@ -1601,6 +1639,44 @@ void mmc_set_driver_type(struct mmc_host *host, unsigned int drv_type)
mmc_host_clk_release(host);
}
int mmc_select_drive_strength(struct mmc_card *card, unsigned int max_dtr,
int card_drv_type, int *drv_type)
{
struct mmc_host *host = card->host;
int host_drv_type = SD_DRIVER_TYPE_B;
int drive_strength;
*drv_type = 0;
if (!host->ops->select_drive_strength)
return 0;
/* Use SD definition of driver strength for hosts */
if (host->caps & MMC_CAP_DRIVER_TYPE_A)
host_drv_type |= SD_DRIVER_TYPE_A;
if (host->caps & MMC_CAP_DRIVER_TYPE_C)
host_drv_type |= SD_DRIVER_TYPE_C;
if (host->caps & MMC_CAP_DRIVER_TYPE_D)
host_drv_type |= SD_DRIVER_TYPE_D;
/*
* The drive strength that the hardware can support
* depends on the board design. Pass the appropriate
* information and let the hardware specific code
* return what is possible given the options
*/
mmc_host_clk_hold(host);
drive_strength = host->ops->select_drive_strength(card, max_dtr,
host_drv_type,
card_drv_type,
drv_type);
mmc_host_clk_release(host);
return drive_strength;
}
/*
* Apply power to the MMC stack. This is a two-stage process.
* First, we enable power to the card without the clock running.
@ -1970,6 +2046,8 @@ static int mmc_do_erase(struct mmc_card *card, unsigned int from,
unsigned long timeout;
int err;
mmc_retune_hold(card->host);
/*
* qty is used to calculate the erase timeout which depends on how many
* erase groups (or allocation units in SD terminology) are affected.
@ -2073,6 +2151,7 @@ static int mmc_do_erase(struct mmc_card *card, unsigned int from,
} while (!(cmd.resp[0] & R1_READY_FOR_DATA) ||
(R1_CURRENT_STATE(cmd.resp[0]) == R1_STATE_PRG));
out:
mmc_retune_release(card->host);
return err;
}
@ -2331,7 +2410,8 @@ int mmc_hw_reset(struct mmc_host *host)
ret = host->bus_ops->reset(host);
mmc_bus_put(host);
pr_warn("%s: tried to reset card\n", mmc_hostname(host));
if (ret != -EOPNOTSUPP)
pr_warn("%s: tried to reset card\n", mmc_hostname(host));
return ret;
}

4
drivers/mmc/core/core.h
View File

@ -50,6 +50,8 @@ int mmc_set_signal_voltage(struct mmc_host *host, int signal_voltage, u32 ocr);
int __mmc_set_signal_voltage(struct mmc_host *host, int signal_voltage);
void mmc_set_timing(struct mmc_host *host, unsigned int timing);
void mmc_set_driver_type(struct mmc_host *host, unsigned int drv_type);
int mmc_select_drive_strength(struct mmc_card *card, unsigned int max_dtr,
int card_drv_type, int *drv_type);
void mmc_power_up(struct mmc_host *host, u32 ocr);
void mmc_power_off(struct mmc_host *host);
void mmc_power_cycle(struct mmc_host *host, u32 ocr);
@ -88,6 +90,8 @@ void mmc_remove_card_debugfs(struct mmc_card *card);
void mmc_init_context_info(struct mmc_host *host);
int mmc_execute_tuning(struct mmc_card *card);
int mmc_hs200_to_hs400(struct mmc_card *card);
int mmc_hs400_to_hs200(struct mmc_card *card);
#endif

88
drivers/mmc/core/host.c
View File

@ -301,6 +301,90 @@ static inline void mmc_host_clk_sysfs_init(struct mmc_host *host)
#endif
void mmc_retune_enable(struct mmc_host *host)
{
host->can_retune = 1;
if (host->retune_period)
mod_timer(&host->retune_timer,
jiffies + host->retune_period * HZ);
}
void mmc_retune_disable(struct mmc_host *host)
{
host->can_retune = 0;
del_timer_sync(&host->retune_timer);
host->retune_now = 0;
host->need_retune = 0;
}
void mmc_retune_timer_stop(struct mmc_host *host)
{
del_timer_sync(&host->retune_timer);
}
EXPORT_SYMBOL(mmc_retune_timer_stop);
void mmc_retune_hold(struct mmc_host *host)
{
if (!host->hold_retune)
host->retune_now = 1;
host->hold_retune += 1;
}
void mmc_retune_release(struct mmc_host *host)
{
if (host->hold_retune)
host->hold_retune -= 1;
else
WARN_ON(1);
}
int mmc_retune(struct mmc_host *host)
{
bool return_to_hs400 = false;
int err;
if (host->retune_now)
host->retune_now = 0;
else
return 0;
if (!host->need_retune || host->doing_retune || !host->card)
return 0;
host->need_retune = 0;
host->doing_retune = 1;
if (host->ios.timing == MMC_TIMING_MMC_HS400) {
err = mmc_hs400_to_hs200(host->card);
if (err)
goto out;
return_to_hs400 = true;
if (host->ops->prepare_hs400_tuning)
host->ops->prepare_hs400_tuning(host, &host->ios);
}
err = mmc_execute_tuning(host->card);
if (err)
goto out;
if (return_to_hs400)
err = mmc_hs200_to_hs400(host->card);
out:
host->doing_retune = 0;
return err;
}
static void mmc_retune_timer(unsigned long data)
{
struct mmc_host *host = (struct mmc_host *)data;
mmc_retune_needed(host);
}
/**
* mmc_of_parse() - parse host's device-tree node
* @host: host whose node should be parsed.
@ -400,6 +484,9 @@ int mmc_of_parse(struct mmc_host *host)
else if (ret != -ENOENT)
return ret;
if (of_property_read_bool(np, "disable-wp"))
host->caps2 |= MMC_CAP2_NO_WRITE_PROTECT;
/* See the comment on CD inversion above */
if (ro_cap_invert ^ ro_gpio_invert)
host->caps2 |= MMC_CAP2_RO_ACTIVE_HIGH;
@ -504,6 +591,7 @@ struct mmc_host *mmc_alloc_host(int extra, struct device *dev)
#ifdef CONFIG_PM
host->pm_notify.notifier_call = mmc_pm_notify;
#endif
setup_timer(&host->retune_timer, mmc_retune_timer, (unsigned long)host);
/*
* By default, hosts do not support SGIO or large requests.

6
drivers/mmc/core/host.h
View File

@ -15,5 +15,11 @@
int mmc_register_host_class(void);
void mmc_unregister_host_class(void);
void mmc_retune_enable(struct mmc_host *host);
void mmc_retune_disable(struct mmc_host *host);
void mmc_retune_hold(struct mmc_host *host);
void mmc_retune_release(struct mmc_host *host);
int mmc_retune(struct mmc_host *host);
#endif

156
drivers/mmc/core/mmc.c
View File

@ -21,6 +21,7 @@
#include <linux/mmc/mmc.h>
#include "core.h"
#include "host.h"
#include "bus.h"
#include "mmc_ops.h"
#include "sd_ops.h"
@ -266,8 +267,10 @@ static void mmc_manage_enhanced_area(struct mmc_card *card, u8 *ext_csd)
* calculate the enhanced data area offset, in bytes
*/
card->ext_csd.enhanced_area_offset =
(ext_csd[139] << 24) + (ext_csd[138] << 16) +
(ext_csd[137] << 8) + ext_csd[136];
(((unsigned long long)ext_csd[139]) << 24) +
(((unsigned long long)ext_csd[138]) << 16) +
(((unsigned long long)ext_csd[137]) << 8) +
(((unsigned long long)ext_csd[136]));
if (mmc_card_blockaddr(card))
card->ext_csd.enhanced_area_offset <<= 9;
/*
@ -434,6 +437,7 @@ static int mmc_decode_ext_csd(struct mmc_card *card, u8 *ext_csd)
card->ext_csd.raw_trim_mult =
ext_csd[EXT_CSD_TRIM_MULT];
card->ext_csd.raw_partition_support = ext_csd[EXT_CSD_PARTITION_SUPPORT];
card->ext_csd.raw_driver_strength = ext_csd[EXT_CSD_DRIVER_STRENGTH];
if (card->ext_csd.rev >= 4) {
if (ext_csd[EXT_CSD_PARTITION_SETTING_COMPLETED] &
EXT_CSD_PART_SETTING_COMPLETED)
@ -1040,6 +1044,7 @@ static int mmc_select_hs400(struct mmc_card *card)
{
struct mmc_host *host = card->host;
int err = 0;
u8 val;
/*
* HS400 mode requires 8-bit bus width
@ -1055,8 +1060,10 @@ static int mmc_select_hs400(struct mmc_card *card)
mmc_set_timing(card->host, MMC_TIMING_MMC_HS);
mmc_set_bus_speed(card);
val = EXT_CSD_TIMING_HS |
card->drive_strength << EXT_CSD_DRV_STR_SHIFT;
err = __mmc_switch(card, EXT_CSD_CMD_SET_NORMAL,
EXT_CSD_HS_TIMING, EXT_CSD_TIMING_HS,
EXT_CSD_HS_TIMING, val,
card->ext_csd.generic_cmd6_time,
true, true, true);
if (err) {
@ -1075,8 +1082,10 @@ static int mmc_select_hs400(struct mmc_card *card)
return err;
}
val = EXT_CSD_TIMING_HS400 |
card->drive_strength << EXT_CSD_DRV_STR_SHIFT;
err = __mmc_switch(card, EXT_CSD_CMD_SET_NORMAL,
EXT_CSD_HS_TIMING, EXT_CSD_TIMING_HS400,
EXT_CSD_HS_TIMING, val,
card->ext_csd.generic_cmd6_time,
true, true, true);
if (err) {
@ -1091,6 +1100,115 @@ static int mmc_select_hs400(struct mmc_card *card)
return 0;
}
int mmc_hs200_to_hs400(struct mmc_card *card)
{
return mmc_select_hs400(card);
}
/* Caller must hold re-tuning */
static int mmc_switch_status(struct mmc_card *card)
{
u32 status;
int err;
err = mmc_send_status(card, &status);
if (err)
return err;
return mmc_switch_status_error(card->host, status);
}
int mmc_hs400_to_hs200(struct mmc_card *card)
{
struct mmc_host *host = card->host;
bool send_status = true;
unsigned int max_dtr;
int err;
u8 val;
if (host->caps & MMC_CAP_WAIT_WHILE_BUSY)
send_status = false;
/* Reduce frequency to HS */
max_dtr = card->ext_csd.hs_max_dtr;
mmc_set_clock(host, max_dtr);
/* Switch HS400 to HS DDR */
val = EXT_CSD_TIMING_HS |
card->drive_strength << EXT_CSD_DRV_STR_SHIFT;
err = __mmc_switch(card, EXT_CSD_CMD_SET_NORMAL, EXT_CSD_HS_TIMING,
val, card->ext_csd.generic_cmd6_time,
true, send_status, true);
if (err)
goto out_err;
mmc_set_timing(host, MMC_TIMING_MMC_DDR52);
if (!send_status) {
err = mmc_switch_status(card);
if (err)
goto out_err;
}
/* Switch HS DDR to HS */
err = __mmc_switch(card, EXT_CSD_CMD_SET_NORMAL, EXT_CSD_BUS_WIDTH,
EXT_CSD_BUS_WIDTH_8, card->ext_csd.generic_cmd6_time,
true, send_status, true);
if (err)
goto out_err;
mmc_set_timing(host, MMC_TIMING_MMC_HS);
if (!send_status) {
err = mmc_switch_status(card);
if (err)
goto out_err;
}
/* Switch HS to HS200 */
val = EXT_CSD_TIMING_HS200 |
card->drive_strength << EXT_CSD_DRV_STR_SHIFT;
err = __mmc_switch(card, EXT_CSD_CMD_SET_NORMAL, EXT_CSD_HS_TIMING,
val, card->ext_csd.generic_cmd6_time, true,
send_status, true);
if (err)
goto out_err;
mmc_set_timing(host, MMC_TIMING_MMC_HS200);
if (!send_status) {
err = mmc_switch_status(card);
if (err)
goto out_err;
}
mmc_set_bus_speed(card);
return 0;
out_err:
pr_err("%s: %s failed, error %d\n", mmc_hostname(card->host),
__func__, err);
return err;
}
static void mmc_select_driver_type(struct mmc_card *card)
{
int card_drv_type, drive_strength, drv_type;
card_drv_type = card->ext_csd.raw_driver_strength |
mmc_driver_type_mask(0);
drive_strength = mmc_select_drive_strength(card,
card->ext_csd.hs200_max_dtr,
card_drv_type, &drv_type);
card->drive_strength = drive_strength;
if (drv_type)
mmc_set_driver_type(card->host, drv_type);
}
/*
* For device supporting HS200 mode, the following sequence
* should be done before executing the tuning process.
@ -1102,6 +1220,7 @@ static int mmc_select_hs200(struct mmc_card *card)
{
struct mmc_host *host = card->host;
int err = -EINVAL;
u8 val;
if (card->mmc_avail_type & EXT_CSD_CARD_TYPE_HS200_1_2V)
err = __mmc_set_signal_voltage(host, MMC_SIGNAL_VOLTAGE_120);
@ -1113,14 +1232,18 @@ static int mmc_select_hs200(struct mmc_card *card)
if (err)
goto err;
mmc_select_driver_type(card);
/*
* Set the bus width(4 or 8) with host's support and
* switch to HS200 mode if bus width is set successfully.
*/
err = mmc_select_bus_width(card);
if (!IS_ERR_VALUE(err)) {
val = EXT_CSD_TIMING_HS200 |
card->drive_strength << EXT_CSD_DRV_STR_SHIFT;
err = __mmc_switch(card, EXT_CSD_CMD_SET_NORMAL,
EXT_CSD_HS_TIMING, EXT_CSD_TIMING_HS200,
EXT_CSD_HS_TIMING, val,
card->ext_csd.generic_cmd6_time,
true, true, true);
if (!err)
@ -1511,9 +1634,12 @@ static int mmc_sleep(struct mmc_host *host)
unsigned int timeout_ms = DIV_ROUND_UP(card->ext_csd.sa_timeout, 10000);
int err;
/* Re-tuning can't be done once the card is deselected */
mmc_retune_hold(host);
err = mmc_deselect_cards(host);
if (err)
return err;
goto out_release;
cmd.opcode = MMC_SLEEP_AWAKE;
cmd.arg = card->rca << 16;
@ -1534,7 +1660,7 @@ static int mmc_sleep(struct mmc_host *host)
err = mmc_wait_for_cmd(host, &cmd, 0);
if (err)
return err;
goto out_release;
/*
* If the host does not wait while the card signals busy, then we will
@ -1545,6 +1671,8 @@ static int mmc_sleep(struct mmc_host *host)
if (!cmd.busy_timeout || !(host->caps & MMC_CAP_WAIT_WHILE_BUSY))
mmc_delay(timeout_ms);
out_release:
mmc_retune_release(host);
return err;
}
@ -1782,17 +1910,6 @@ static int mmc_runtime_resume(struct mmc_host *host)
return 0;
}
static int mmc_power_restore(struct mmc_host *host)
{
int ret;
mmc_claim_host(host);
ret = mmc_init_card(host, host->card->ocr, host->card);
mmc_release_host(host);
return ret;
}
int mmc_can_reset(struct mmc_card *card)
{
u8 rst_n_function;
@ -1830,7 +1947,7 @@ static int mmc_reset(struct mmc_host *host)
mmc_set_initial_state(host);
mmc_host_clk_release(host);
return mmc_power_restore(host);
return mmc_init_card(host, card->ocr, card);
}
static const struct mmc_bus_ops mmc_ops = {
@ -1840,7 +1957,6 @@ static const struct mmc_bus_ops mmc_ops = {
.resume = mmc_resume,
.runtime_suspend = mmc_runtime_suspend,
.runtime_resume = mmc_runtime_resume,
.power_restore = mmc_power_restore,
.alive = mmc_alive,
.shutdown = mmc_shutdown,
.reset = mmc_reset,

44
drivers/mmc/core/mmc_ops.c
View File

@ -19,6 +19,7 @@
#include <linux/mmc/mmc.h>
#include "core.h"
#include "host.h"
#include "mmc_ops.h"
#define MMC_OPS_TIMEOUT_MS (10 * 60 * 1000) /* 10 minute timeout */
@ -449,6 +450,21 @@ int mmc_spi_set_crc(struct mmc_host *host, int use_crc)
return err;
}
int mmc_switch_status_error(struct mmc_host *host, u32 status)
{
if (mmc_host_is_spi(host)) {
if (status & R1_SPI_ILLEGAL_COMMAND)
return -EBADMSG;
} else {
if (status & 0xFDFFA000)
pr_warn("%s: unexpected status %#x after switch\n",
mmc_hostname(host), status);
if (status & R1_SWITCH_ERROR)
return -EBADMSG;
}
return 0;
}
/**
* __mmc_switch - modify EXT_CSD register
* @card: the MMC card associated with the data transfer
@ -474,6 +490,8 @@ int __mmc_switch(struct mmc_card *card, u8 set, u8 index, u8 value,
u32 status = 0;
bool use_r1b_resp = use_busy_signal;
mmc_retune_hold(host);
/*
* If the cmd timeout and the max_busy_timeout of the host are both
* specified, let's validate them. A failure means we need to prevent
@ -506,11 +524,11 @@ int __mmc_switch(struct mmc_card *card, u8 set, u8 index, u8 value,
err = mmc_wait_for_cmd(host, &cmd, MMC_CMD_RETRIES);
if (err)
return err;
goto out;
/* No need to check card status in case of unblocking command */
if (!use_busy_signal)
return 0;
goto out;
/*
* CRC errors shall only be ignored in cases were CMD13 is used to poll
@ -529,7 +547,7 @@ int __mmc_switch(struct mmc_card *card, u8 set, u8 index, u8 value,
if (send_status) {
err = __mmc_send_status(card, &status, ignore_crc);
if (err)
return err;
goto out;
}
if ((host->caps & MMC_CAP_WAIT_WHILE_BUSY) && use_r1b_resp)
break;
@ -543,29 +561,23 @@ int __mmc_switch(struct mmc_card *card, u8 set, u8 index, u8 value,
*/
if (!send_status) {
mmc_delay(timeout_ms);
return 0;
goto out;
}
/* Timeout if the device never leaves the program state. */
if (time_after(jiffies, timeout)) {
pr_err("%s: Card stuck in programming state! %s\n",
mmc_hostname(host), __func__);
return -ETIMEDOUT;
err = -ETIMEDOUT;
goto out;
}
} while (R1_CURRENT_STATE(status) == R1_STATE_PRG);
if (mmc_host_is_spi(host)) {
if (status & R1_SPI_ILLEGAL_COMMAND)
return -EBADMSG;
} else {
if (status & 0xFDFFA000)
pr_warn("%s: unexpected status %#x after switch\n",
mmc_hostname(host), status);
if (status & R1_SWITCH_ERROR)
return -EBADMSG;
}
err = mmc_switch_status_error(host, status);
out:
mmc_retune_release(host);
return 0;
return err;
}
EXPORT_SYMBOL_GPL(__mmc_switch);

1
drivers/mmc/core/mmc_ops.h
View File

@ -27,6 +27,7 @@ int mmc_spi_set_crc(struct mmc_host *host, int use_crc);
int mmc_bus_test(struct mmc_card *card, u8 bus_width);
int mmc_send_hpi_cmd(struct mmc_card *card, u32 *status);
int mmc_can_ext_csd(struct mmc_card *card);
int mmc_switch_status_error(struct mmc_host *host, u32 status);
#endif

113
drivers/mmc/core/sd.c
View File

@ -386,64 +386,31 @@ int mmc_sd_switch_hs(struct mmc_card *card)
static int sd_select_driver_type(struct mmc_card *card, u8 *status)
{
int host_drv_type = SD_DRIVER_TYPE_B;
int card_drv_type = SD_DRIVER_TYPE_B;
int drive_strength;
int card_drv_type, drive_strength, drv_type;
int err;
/*
* If the host doesn't support any of the Driver Types A,C or D,
* or there is no board specific handler then default Driver
* Type B is used.
*/
if (!(card->host->caps & (MMC_CAP_DRIVER_TYPE_A | MMC_CAP_DRIVER_TYPE_C
| MMC_CAP_DRIVER_TYPE_D)))
return 0;
card->drive_strength = 0;
if (!card->host->ops->select_drive_strength)
return 0;
card_drv_type = card->sw_caps.sd3_drv_type | SD_DRIVER_TYPE_B;
if (card->host->caps & MMC_CAP_DRIVER_TYPE_A)
host_drv_type |= SD_DRIVER_TYPE_A;
drive_strength = mmc_select_drive_strength(card,
card->sw_caps.uhs_max_dtr,
card_drv_type, &drv_type);
if (card->host->caps & MMC_CAP_DRIVER_TYPE_C)
host_drv_type |= SD_DRIVER_TYPE_C;
if (card->host->caps & MMC_CAP_DRIVER_TYPE_D)
host_drv_type |= SD_DRIVER_TYPE_D;
if (card->sw_caps.sd3_drv_type & SD_DRIVER_TYPE_A)
card_drv_type |= SD_DRIVER_TYPE_A;
if (card->sw_caps.sd3_drv_type & SD_DRIVER_TYPE_C)
card_drv_type |= SD_DRIVER_TYPE_C;
if (card->sw_caps.sd3_drv_type & SD_DRIVER_TYPE_D)
card_drv_type |= SD_DRIVER_TYPE_D;
/*
* The drive strength that the hardware can support
* depends on the board design. Pass the appropriate
* information and let the hardware specific code
* return what is possible given the options
*/
mmc_host_clk_hold(card->host);
drive_strength = card->host->ops->select_drive_strength(
card->sw_caps.uhs_max_dtr,
host_drv_type, card_drv_type);
mmc_host_clk_release(card->host);
err = mmc_sd_switch(card, 1, 2, drive_strength, status);
if (err)
return err;
if ((status[15] & 0xF) != drive_strength) {
pr_warn("%s: Problem setting drive strength!\n",
mmc_hostname(card->host));
return 0;
if (drive_strength) {
err = mmc_sd_switch(card, 1, 2, drive_strength, status);
if (err)
return err;
if ((status[15] & 0xF) != drive_strength) {
pr_warn("%s: Problem setting drive strength!\n",
mmc_hostname(card->host));
return 0;
}
card->drive_strength = drive_strength;
}
mmc_set_driver_type(card->host, drive_strength);
if (drv_type)
mmc_set_driver_type(card->host, drv_type);
return 0;
}
@ -804,6 +771,28 @@ int mmc_sd_get_csd(struct mmc_host *host, struct mmc_card *card)
return 0;
}
static int mmc_sd_get_ro(struct mmc_host *host)
{
int ro;
/*
* Some systems don't feature a write-protect pin and don't need one.
* E.g. because they only have micro-SD card slot. For those systems
* assume that the SD card is always read-write.
*/
if (host->caps2 & MMC_CAP2_NO_WRITE_PROTECT)
return 0;
if (!host->ops->get_ro)
return -1;
mmc_host_clk_hold(host);
ro = host->ops->get_ro(host);
mmc_host_clk_release(host);
return ro;
}
int mmc_sd_setup_card(struct mmc_host *host, struct mmc_card *card,
bool reinit)
{
@ -855,13 +844,7 @@ int mmc_sd_setup_card(struct mmc_host *host, struct mmc_card *card,
* Check if read-only switch is active.
*/
if (!reinit) {
int ro = -1;
if (host->ops->get_ro) {
mmc_host_clk_hold(card->host);
ro = host->ops->get_ro(host);
mmc_host_clk_release(card->host);
}
int ro = mmc_sd_get_ro(host);
if (ro < 0) {
pr_warn("%s: host does not support reading read-only switch, assuming write-enable\n",
@ -1181,21 +1164,10 @@ static int mmc_sd_runtime_resume(struct mmc_host *host)
return 0;
}
static int mmc_sd_power_restore(struct mmc_host *host)
{
int ret;
mmc_claim_host(host);
ret = mmc_sd_init_card(host, host->card->ocr, host->card);
mmc_release_host(host);
return ret;
}
static int mmc_sd_reset(struct mmc_host *host)
{
mmc_power_cycle(host, host->card->ocr);
return mmc_sd_power_restore(host);
return mmc_sd_init_card(host, host->card->ocr, host->card);
}
static const struct mmc_bus_ops mmc_sd_ops = {
@ -1205,7 +1177,6 @@ static const struct mmc_bus_ops mmc_sd_ops = {
.runtime_resume = mmc_sd_runtime_resume,
.suspend = mmc_sd_suspend,
.resume = mmc_sd_resume,
.power_restore = mmc_sd_power_restore,
.alive = mmc_sd_alive,
.shutdown = mmc_sd_suspend,
.reset = mmc_sd_reset,

90
drivers/mmc/core/sdio.c
View File

@ -402,69 +402,38 @@ static unsigned char host_drive_to_sdio_drive(int host_strength)
static void sdio_select_driver_type(struct mmc_card *card)
{
int host_drv_type = SD_DRIVER_TYPE_B;
int card_drv_type = SD_DRIVER_TYPE_B;
int drive_strength;
int card_drv_type, drive_strength, drv_type;
unsigned char card_strength;
int err;
/*
* If the host doesn't support any of the Driver Types A,C or D,
* or there is no board specific handler then default Driver
* Type B is used.
*/
if (!(card->host->caps &
(MMC_CAP_DRIVER_TYPE_A |
MMC_CAP_DRIVER_TYPE_C |
MMC_CAP_DRIVER_TYPE_D)))
return;
card->drive_strength = 0;
if (!card->host->ops->select_drive_strength)
return;
card_drv_type = card->sw_caps.sd3_drv_type | SD_DRIVER_TYPE_B;
if (card->host->caps & MMC_CAP_DRIVER_TYPE_A)
host_drv_type |= SD_DRIVER_TYPE_A;
drive_strength = mmc_select_drive_strength(card,
card->sw_caps.uhs_max_dtr,
card_drv_type, &drv_type);
if (card->host->caps & MMC_CAP_DRIVER_TYPE_C)
host_drv_type |= SD_DRIVER_TYPE_C;
if (drive_strength) {
/* if error just use default for drive strength B */
err = mmc_io_rw_direct(card, 0, 0, SDIO_CCCR_DRIVE_STRENGTH, 0,
&card_strength);
if (err)
return;
if (card->host->caps & MMC_CAP_DRIVER_TYPE_D)
host_drv_type |= SD_DRIVER_TYPE_D;
card_strength &= ~(SDIO_DRIVE_DTSx_MASK<<SDIO_DRIVE_DTSx_SHIFT);
card_strength |= host_drive_to_sdio_drive(drive_strength);
if (card->sw_caps.sd3_drv_type & SD_DRIVER_TYPE_A)
card_drv_type |= SD_DRIVER_TYPE_A;
/* if error default to drive strength B */
err = mmc_io_rw_direct(card, 1, 0, SDIO_CCCR_DRIVE_STRENGTH,
card_strength, NULL);
if (err)
return;
card->drive_strength = drive_strength;
}
if (card->sw_caps.sd3_drv_type & SD_DRIVER_TYPE_C)
card_drv_type |= SD_DRIVER_TYPE_C;
if (card->sw_caps.sd3_drv_type & SD_DRIVER_TYPE_D)
card_drv_type |= SD_DRIVER_TYPE_D;
/*
* The drive strength that the hardware can support
* depends on the board design. Pass the appropriate
* information and let the hardware specific code
* return what is possible given the options
*/
drive_strength = card->host->ops->select_drive_strength(
card->sw_caps.uhs_max_dtr,
host_drv_type, card_drv_type);
/* if error just use default for drive strength B */
err = mmc_io_rw_direct(card, 0, 0, SDIO_CCCR_DRIVE_STRENGTH, 0,
&card_strength);
if (err)
return;
card_strength &= ~(SDIO_DRIVE_DTSx_MASK<<SDIO_DRIVE_DTSx_SHIFT);
card_strength |= host_drive_to_sdio_drive(drive_strength);
err = mmc_io_rw_direct(card, 1, 0, SDIO_CCCR_DRIVE_STRENGTH,
card_strength, NULL);
/* if error default to drive strength B */
if (!err)
mmc_set_driver_type(card->host, drive_strength);
if (drv_type)
mmc_set_driver_type(card->host, drv_type);
}
@ -934,8 +903,12 @@ static int mmc_sdio_suspend(struct mmc_host *host)
mmc_release_host(host);
}
if (!mmc_card_keep_power(host))
if (!mmc_card_keep_power(host)) {
mmc_power_off(host);
} else if (host->retune_period) {
mmc_retune_timer_stop(host);
mmc_retune_needed(host);
}
return 0;
}
@ -1056,6 +1029,12 @@ static int mmc_sdio_runtime_resume(struct mmc_host *host)
return mmc_sdio_power_restore(host);
}
static int mmc_sdio_reset(struct mmc_host *host)
{
mmc_power_cycle(host, host->card->ocr);
return mmc_sdio_power_restore(host);
}
static const struct mmc_bus_ops mmc_sdio_ops = {
.remove = mmc_sdio_remove,
.detect = mmc_sdio_detect,
@ -1066,6 +1045,7 @@ static const struct mmc_bus_ops mmc_sdio_ops = {
.runtime_resume = mmc_sdio_runtime_resume,
.power_restore = mmc_sdio_power_restore,
.alive = mmc_sdio_alive,
.reset = mmc_sdio_reset,
};

12
drivers/mmc/core/sdio_bus.c
View File

@ -137,6 +137,10 @@ static int sdio_bus_probe(struct device *dev)
if (!id)
return -ENODEV;
ret = dev_pm_domain_attach(dev, false);
if (ret == -EPROBE_DEFER)
return ret;
/* Unbound SDIO functions are always suspended.
* During probe, the function is set active and the usage count
* is incremented. If the driver supports runtime PM,
@ -166,6 +170,7 @@ static int sdio_bus_probe(struct device *dev)
disable_runtimepm:
if (func->card->host->caps & MMC_CAP_POWER_OFF_CARD)
pm_runtime_put_noidle(dev);
dev_pm_domain_detach(dev, false);
return ret;
}
@ -197,6 +202,8 @@ static int sdio_bus_remove(struct device *dev)
if (func->card->host->caps & MMC_CAP_POWER_OFF_CARD)
pm_runtime_put_sync(dev);
dev_pm_domain_detach(dev, false);
return ret;
}
@ -316,10 +323,8 @@ int sdio_add_func(struct sdio_func *func)
sdio_set_of_node(func);
sdio_acpi_set_handle(func);
ret = device_add(&func->dev);
if (ret == 0) {
if (ret == 0)
sdio_func_set_present(func);
dev_pm_domain_attach(&func->dev, false);
}
return ret;
}
@ -335,7 +340,6 @@ void sdio_remove_func(struct sdio_func *func)
if (!sdio_func_present(func))
return;
dev_pm_domain_detach(&func->dev, false);
device_del(&func->dev);
of_node_put(func->dev.of_node);
put_device(&func->dev);

9
drivers/mmc/host/Kconfig
View File

@ -219,6 +219,7 @@ config MMC_SDHCI_SIRF
tristate "SDHCI support on CSR SiRFprimaII and SiRFmarco SoCs"
depends on ARCH_SIRF
depends on MMC_SDHCI_PLTFM
select MMC_SDHCI_IO_ACCESSORS
help
This selects the SDHCI support for SiRF System-on-Chip devices.
@ -775,3 +776,11 @@ config MMC_TOSHIBA_PCI
tristate "Toshiba Type A SD/MMC Card Interface Driver"
depends on PCI
help
config MMC_MTK
tristate "MediaTek SD/MMC Card Interface support"
help
This selects the MediaTek(R) Secure digital and Multimedia card Interface.
If you have a machine with a integrated SD/MMC card reader, say Y or M here.
This is needed if support for any SD/SDIO/MMC devices is required.
If unsure, say N.

1
drivers/mmc/host/Makefile
View File

@ -20,6 +20,7 @@ obj-$(CONFIG_MMC_SDHCI_F_SDH30) += sdhci_f_sdh30.o
obj-$(CONFIG_MMC_SDHCI_SPEAR) += sdhci-spear.o
obj-$(CONFIG_MMC_WBSD) += wbsd.o
obj-$(CONFIG_MMC_AU1X) += au1xmmc.o
obj-$(CONFIG_MMC_MTK) += mtk-sd.o
obj-$(CONFIG_MMC_OMAP) += omap.o
obj-$(CONFIG_MMC_OMAP_HS) += omap_hsmmc.o
obj-$(CONFIG_MMC_ATMELMCI) += atmel-mci.o

2
drivers/mmc/host/davinci_mmc.c
View File

@ -1161,7 +1161,7 @@ static void __init init_mmcsd_host(struct mmc_davinci_host *host)
mmc_davinci_reset_ctrl(host, 0);
}
static struct platform_device_id davinci_mmc_devtype[] = {
static const struct platform_device_id davinci_mmc_devtype[] = {
{
.name = "dm6441-mmc",
.driver_data = MMC_CTLR_VERSION_1,

2
drivers/mmc/host/dw_mmc-exynos.c
View File

@ -556,4 +556,4 @@ module_platform_driver(dw_mci_exynos_pltfm_driver);
MODULE_DESCRIPTION("Samsung Specific DW-MSHC Driver Extension");
MODULE_AUTHOR("Thomas Abraham <thomas.ab@samsung.com");
MODULE_LICENSE("GPL v2");
MODULE_ALIAS("platform:dwmmc-exynos");
MODULE_ALIAS("platform:dwmmc_exynos");

105
drivers/mmc/host/dw_mmc-k3.c
View File

@ -8,16 +8,30 @@
* (at your option) any later version.
*/
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/clk.h>
#include <linux/mfd/syscon.h>
#include <linux/mmc/host.h>
#include <linux/mmc/dw_mmc.h>
#include <linux/module.h>
#include <linux/of_address.h>
#include <linux/platform_device.h>
#include <linux/regmap.h>
#include <linux/regulator/consumer.h>
#include "dw_mmc.h"
#include "dw_mmc-pltfm.h"
/*
* hi6220 sd only support io voltage 1.8v and 3v
* Also need config AO_SCTRL_SEL18 accordingly
*/
#define AO_SCTRL_SEL18 BIT(10)
#define AO_SCTRL_CTRL3 0x40C
struct k3_priv {
struct regmap *reg;
};
static void dw_mci_k3_set_ios(struct dw_mci *host, struct mmc_ios *ios)
{
int ret;
@ -33,8 +47,93 @@ static const struct dw_mci_drv_data k3_drv_data = {
.set_ios = dw_mci_k3_set_ios,
};
static int dw_mci_hi6220_parse_dt(struct dw_mci *host)
{
struct k3_priv *priv;
priv = devm_kzalloc(host->dev, sizeof(*priv), GFP_KERNEL);
if (!priv)
return -ENOMEM;
priv->reg = syscon_regmap_lookup_by_phandle(host->dev->of_node,
"hisilicon,peripheral-syscon");
if (IS_ERR(priv->reg))
priv->reg = NULL;
host->priv = priv;
return 0;
}
static int dw_mci_hi6220_switch_voltage(struct mmc_host *mmc, struct mmc_ios *ios)
{
struct dw_mci_slot *slot = mmc_priv(mmc);
struct k3_priv *priv;
struct dw_mci *host;
int min_uv, max_uv;
int ret;
host = slot->host;
priv = host->priv;
if (!priv || !priv->reg)
return 0;
if (ios->signal_voltage == MMC_SIGNAL_VOLTAGE_330) {
ret = regmap_update_bits(priv->reg, AO_SCTRL_CTRL3,
AO_SCTRL_SEL18, 0);
min_uv = 3000000;
max_uv = 3000000;
} else if (ios->signal_voltage == MMC_SIGNAL_VOLTAGE_180) {
ret = regmap_update_bits(priv->reg, AO_SCTRL_CTRL3,
AO_SCTRL_SEL18, AO_SCTRL_SEL18);
min_uv = 1800000;
max_uv = 1800000;
} else {
dev_dbg(host->dev, "voltage not supported\n");
return -EINVAL;
}
if (ret) {
dev_dbg(host->dev, "switch voltage failed\n");
return ret;
}
if (IS_ERR_OR_NULL(mmc->supply.vqmmc))
return 0;
ret = regulator_set_voltage(mmc->supply.vqmmc, min_uv, max_uv);
if (ret) {
dev_dbg(host->dev, "Regulator set error %d: %d - %d\n",
ret, min_uv, max_uv);
return ret;
}
return 0;
}
static void dw_mci_hi6220_set_ios(struct dw_mci *host, struct mmc_ios *ios)
{
int ret;
unsigned int clock;
clock = (ios->clock <= 25000000) ? 25000000 : ios->clock;
ret = clk_set_rate(host->biu_clk, clock);
if (ret)
dev_warn(host->dev, "failed to set rate %uHz\n", clock);
host->bus_hz = clk_get_rate(host->biu_clk);
}
static const struct dw_mci_drv_data hi6220_data = {
.switch_voltage = dw_mci_hi6220_switch_voltage,
.set_ios = dw_mci_hi6220_set_ios,
.parse_dt = dw_mci_hi6220_parse_dt,
};
static const struct of_device_id dw_mci_k3_match[] = {
{ .compatible = "hisilicon,hi4511-dw-mshc", .data = &k3_drv_data, },
{ .compatible = "hisilicon,hi6220-dw-mshc", .data = &hi6220_data, },
{},
};
MODULE_DEVICE_TABLE(of, dw_mci_k3_match);
@ -94,4 +193,4 @@ module_platform_driver(dw_mci_k3_pltfm_driver);
MODULE_DESCRIPTION("K3 Specific DW-MSHC Driver Extension");
MODULE_LICENSE("GPL v2");
MODULE_ALIAS("platform:dwmmc-k3");
MODULE_ALIAS("platform:dwmmc_k3");

2
drivers/mmc/host/dw_mmc-rockchip.c
View File

@ -153,5 +153,5 @@ module_platform_driver(dw_mci_rockchip_pltfm_driver);
MODULE_AUTHOR("Addy Ke <addy.ke@rock-chips.com>");
MODULE_DESCRIPTION("Rockchip Specific DW-MSHC Driver Extension");
MODULE_ALIAS("platform:dwmmc-rockchip");
MODULE_ALIAS("platform:dwmmc_rockchip");
MODULE_LICENSE("GPL v2");

63
drivers/mmc/host/dw_mmc.c
View File

@ -1236,11 +1236,15 @@ static int dw_mci_switch_voltage(struct mmc_host *mmc, struct mmc_ios *ios)
{
struct dw_mci_slot *slot = mmc_priv(mmc);
struct dw_mci *host = slot->host;
const struct dw_mci_drv_data *drv_data = host->drv_data;
u32 uhs;
u32 v18 = SDMMC_UHS_18V << slot->id;
int min_uv, max_uv;
int ret;
if (drv_data && drv_data->switch_voltage)
return drv_data->switch_voltage(mmc, ios);
/*
* Program the voltage. Note that some instances of dw_mmc may use
* the UHS_REG for this. For other instances (like exynos) the UHS_REG
@ -1278,10 +1282,7 @@ static int dw_mci_get_ro(struct mmc_host *mmc)
int gpio_ro = mmc_gpio_get_ro(mmc);
/* Use platform get_ro function, else try on board write protect */
if ((slot->quirks & DW_MCI_SLOT_QUIRK_NO_WRITE_PROTECT) ||
(slot->host->quirks & DW_MCI_QUIRK_NO_WRITE_PROTECT))
read_only = 0;
else if (!IS_ERR_VALUE(gpio_ro))
if (!IS_ERR_VALUE(gpio_ro))
read_only = gpio_ro;
else
read_only =
@ -2280,9 +2281,10 @@ static irqreturn_t dw_mci_interrupt(int irq, void *dev_id)
}
#ifdef CONFIG_OF
/* given a slot id, find out the device node representing that slot */
static struct device_node *dw_mci_of_find_slot_node(struct device *dev, u8 slot)
/* given a slot, find out the device node representing that slot */
static struct device_node *dw_mci_of_find_slot_node(struct dw_mci_slot *slot)
{
struct device *dev = slot->mmc->parent;
struct device_node *np;
const __be32 *addr;
int len;
@ -2294,42 +2296,28 @@ static struct device_node *dw_mci_of_find_slot_node(struct device *dev, u8 slot)
addr = of_get_property(np, "reg", &len);
if (!addr || (len < sizeof(int)))
continue;
if (be32_to_cpup(addr) == slot)
if (be32_to_cpup(addr) == slot->id)
return np;
}
return NULL;
}
static struct dw_mci_of_slot_quirks {
char *quirk;
int id;
} of_slot_quirks[] = {
{
.quirk = "disable-wp",
.id = DW_MCI_SLOT_QUIRK_NO_WRITE_PROTECT,
},
};
static int dw_mci_of_get_slot_quirks(struct device *dev, u8 slot)
static void dw_mci_slot_of_parse(struct dw_mci_slot *slot)
{
struct device_node *np = dw_mci_of_find_slot_node(dev, slot);
int quirks = 0;
int idx;
struct device_node *np = dw_mci_of_find_slot_node(slot);
/* get quirks */
for (idx = 0; idx < ARRAY_SIZE(of_slot_quirks); idx++)
if (of_get_property(np, of_slot_quirks[idx].quirk, NULL)) {
dev_warn(dev, "Slot quirk %s is deprecated\n",
of_slot_quirks[idx].quirk);
quirks |= of_slot_quirks[idx].id;
}
if (!np)
return;
return quirks;
if (of_property_read_bool(np, "disable-wp")) {
slot->mmc->caps2 |= MMC_CAP2_NO_WRITE_PROTECT;
dev_warn(slot->mmc->parent,
"Slot quirk 'disable-wp' is deprecated\n");
}
}
#else /* CONFIG_OF */
static int dw_mci_of_get_slot_quirks(struct device *dev, u8 slot)
static void dw_mci_slot_of_parse(struct dw_mci_slot *slot)
{
return 0;
}
#endif /* CONFIG_OF */
@ -2352,8 +2340,6 @@ static int dw_mci_init_slot(struct dw_mci *host, unsigned int id)
slot->host = host;
host->slot[id] = slot;
slot->quirks = dw_mci_of_get_slot_quirks(host->dev, slot->id);
mmc->ops = &dw_mci_ops;
if (of_property_read_u32_array(host->dev->of_node,
"clock-freq-min-max", freq, 2)) {
@ -2391,6 +2377,8 @@ static int dw_mci_init_slot(struct dw_mci *host, unsigned int id)
if (host->pdata->caps2)
mmc->caps2 = host->pdata->caps2;
dw_mci_slot_of_parse(slot);
ret = mmc_of_parse(mmc);
if (ret)
goto err_host_allocated;
@ -2618,9 +2606,6 @@ static struct dw_mci_of_quirks {
{
.quirk = "broken-cd",
.id = DW_MCI_QUIRK_BROKEN_CARD_DETECTION,
}, {
.quirk = "disable-wp",
.id = DW_MCI_QUIRK_NO_WRITE_PROTECT,
},
};
@ -2941,15 +2926,15 @@ void dw_mci_remove(struct dw_mci *host)
{
int i;
mci_writel(host, RINTSTS, 0xFFFFFFFF);
mci_writel(host, INTMASK, 0); /* disable all mmc interrupt first */
for (i = 0; i < host->num_slots; i++) {
dev_dbg(host->dev, "remove slot %d\n", i);
if (host->slot[i])
dw_mci_cleanup_slot(host->slot[i], i);
}
mci_writel(host, RINTSTS, 0xFFFFFFFF);
mci_writel(host, INTMASK, 0); /* disable all mmc interrupt first */
/* disable clock to CIU */
mci_writel(host, CLKENA, 0);
mci_writel(host, CLKSRC, 0);

5
drivers/mmc/host/dw_mmc.h
View File

@ -227,7 +227,6 @@ extern int dw_mci_resume(struct dw_mci *host);
* struct dw_mci_slot - MMC slot state
* @mmc: The mmc_host representing this slot.
* @host: The MMC controller this slot is using.
* @quirks: Slot-level quirks (DW_MCI_SLOT_QUIRK_XXX)
* @ctype: Card type for this slot.
* @mrq: mmc_request currently being processed or waiting to be
* processed, or NULL when the slot is idle.
@ -245,8 +244,6 @@ struct dw_mci_slot {
struct mmc_host *mmc;
struct dw_mci *host;
int quirks;
u32 ctype;
struct mmc_request *mrq;
@ -287,5 +284,7 @@ struct dw_mci_drv_data {
int (*execute_tuning)(struct dw_mci_slot *slot);
int (*prepare_hs400_tuning)(struct dw_mci *host,
struct mmc_ios *ios);
int (*switch_voltage)(struct mmc_host *mmc,
struct mmc_ios *ios);
};
#endif /* _DW_MMC_H_ */

1462
drivers/mmc/host/mtk-sd.c Normal file
View File

File diff suppressed because it is too large Load Diff

6
drivers/mmc/host/mxcmmc.c
View File

@ -605,11 +605,7 @@ static int mxcmci_push(struct mxcmci_host *host, void *_buf, int bytes)
mxcmci_writel(host, cpu_to_le32(tmp), MMC_REG_BUFFER_ACCESS);
}
stat = mxcmci_poll_status(host, STATUS_BUF_WRITE_RDY);
if (stat)
return stat;
return 0;
return mxcmci_poll_status(host, STATUS_BUF_WRITE_RDY);
}
static int mxcmci_transfer_data(struct mxcmci_host *host)

2
drivers/mmc/host/mxs-mmc.c
View File

@ -549,7 +549,7 @@ static const struct mmc_host_ops mxs_mmc_ops = {
.enable_sdio_irq = mxs_mmc_enable_sdio_irq,
};
static struct platform_device_id mxs_ssp_ids[] = {
static const struct platform_device_id mxs_ssp_ids[] = {
{
.name = "imx23-mmc",
.driver_data = IMX23_SSP,

2
drivers/mmc/host/rtsx_pci_sdmmc.c
View File

@ -1474,7 +1474,7 @@ static int rtsx_pci_sdmmc_drv_remove(struct platform_device *pdev)
return 0;
}
static struct platform_device_id rtsx_pci_sdmmc_ids[] = {
static const struct platform_device_id rtsx_pci_sdmmc_ids[] = {
{
.name = DRV_NAME_RTSX_PCI_SDMMC,
}, {

2
drivers/mmc/host/rtsx_usb_sdmmc.c
View File

@ -1439,7 +1439,7 @@ static int rtsx_usb_sdmmc_drv_remove(struct platform_device *pdev)
return 0;
}
static struct platform_device_id rtsx_usb_sdmmc_ids[] = {
static const struct platform_device_id rtsx_usb_sdmmc_ids[] = {
{
.name = "rtsx_usb_sdmmc",
}, {

2
drivers/mmc/host/s3cmci.c
View File

@ -1856,7 +1856,7 @@ static int s3cmci_remove(struct platform_device *pdev)
return 0;
}
static struct platform_device_id s3cmci_driver_ids[] = {
static const struct platform_device_id s3cmci_driver_ids[] = {
{
.name = "s3c2410-sdi",
.driver_data = 0,

12
drivers/mmc/host/sdhci-bcm2835.c
View File

@ -172,9 +172,19 @@ static int bcm2835_sdhci_probe(struct platform_device *pdev)
ret = PTR_ERR(pltfm_host->clk);
goto err;
}
ret = clk_prepare_enable(pltfm_host->clk);
if (ret) {
dev_err(&pdev->dev, "failed to enable host clk\n");
goto err;
}
return sdhci_add_host(host);
ret = sdhci_add_host(host);
if (ret)
goto err_clk;
return 0;
err_clk:
clk_disable_unprepare(pltfm_host->clk);
err:
sdhci_pltfm_free(pdev);
return ret;

94
drivers/mmc/host/sdhci-esdhc-imx.c
View File

@ -4,7 +4,7 @@
* derived from the OF-version.
*
* Copyright (c) 2010 Pengutronix e.K.
* Author: Wolfram Sang <w.sang@pengutronix.de>
* Author: Wolfram Sang <kernel@pengutronix.de>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
@ -112,6 +112,14 @@
#define ESDHC_FLAG_STD_TUNING BIT(5)
/* The IP has SDHCI_CAPABILITIES_1 register */
#define ESDHC_FLAG_HAVE_CAP1 BIT(6)
/*
* The IP has errata ERR004536
* uSDHC: ADMA Length Mismatch Error occurs if the AHB read access is slow,
* when reading data from the card
*/
#define ESDHC_FLAG_ERR004536 BIT(7)
/* The IP supports HS200 mode */
#define ESDHC_FLAG_HS200 BIT(8)
struct esdhc_soc_data {
u32 flags;
@ -139,7 +147,13 @@ static struct esdhc_soc_data usdhc_imx6q_data = {
static struct esdhc_soc_data usdhc_imx6sl_data = {
.flags = ESDHC_FLAG_USDHC | ESDHC_FLAG_STD_TUNING
| ESDHC_FLAG_HAVE_CAP1,
| ESDHC_FLAG_HAVE_CAP1 | ESDHC_FLAG_ERR004536
| ESDHC_FLAG_HS200,
};
static struct esdhc_soc_data usdhc_imx6sx_data = {
.flags = ESDHC_FLAG_USDHC | ESDHC_FLAG_STD_TUNING
| ESDHC_FLAG_HAVE_CAP1 | ESDHC_FLAG_HS200,
};
struct pltfm_imx_data {
@ -161,7 +175,7 @@ struct pltfm_imx_data {
u32 is_ddr;
};
static struct platform_device_id imx_esdhc_devtype[] = {
static const struct platform_device_id imx_esdhc_devtype[] = {
{
.name = "sdhci-esdhc-imx25",
.driver_data = (kernel_ulong_t) &esdhc_imx25_data,
@ -182,6 +196,7 @@ static const struct of_device_id imx_esdhc_dt_ids[] = {
{ .compatible = "fsl,imx35-esdhc", .data = &esdhc_imx35_data, },
{ .compatible = "fsl,imx51-esdhc", .data = &esdhc_imx51_data, },
{ .compatible = "fsl,imx53-esdhc", .data = &esdhc_imx53_data, },
{ .compatible = "fsl,imx6sx-usdhc", .data = &usdhc_imx6sx_data, },
{ .compatible = "fsl,imx6sl-usdhc", .data = &usdhc_imx6sl_data, },
{ .compatible = "fsl,imx6q-usdhc", .data = &usdhc_imx6q_data, },
{ /* sentinel */ }
@ -298,7 +313,7 @@ static void esdhc_writel_le(struct sdhci_host *host, u32 val, int reg)
u32 data;
if (unlikely(reg == SDHCI_INT_ENABLE || reg == SDHCI_SIGNAL_ENABLE)) {
if (val & SDHCI_INT_CARD_INT) {
if ((val & SDHCI_INT_CARD_INT) && !esdhc_is_usdhc(imx_data)) {
/*
* Clear and then set D3CD bit to avoid missing the
* card interrupt. This is a eSDHC controller problem
@ -313,6 +328,11 @@ static void esdhc_writel_le(struct sdhci_host *host, u32 val, int reg)
data |= ESDHC_CTRL_D3CD;
writel(data, host->ioaddr + SDHCI_HOST_CONTROL);
}
if (val & SDHCI_INT_ADMA_ERROR) {
val &= ~SDHCI_INT_ADMA_ERROR;
val |= ESDHC_INT_VENDOR_SPEC_DMA_ERR;
}
}
if (unlikely((imx_data->socdata->flags & ESDHC_FLAG_MULTIBLK_NO_INT)
@ -333,13 +353,6 @@ static void esdhc_writel_le(struct sdhci_host *host, u32 val, int reg)
}
}
if (unlikely(reg == SDHCI_INT_ENABLE || reg == SDHCI_SIGNAL_ENABLE)) {
if (val & SDHCI_INT_ADMA_ERROR) {
val &= ~SDHCI_INT_ADMA_ERROR;
val |= ESDHC_INT_VENDOR_SPEC_DMA_ERR;
}
}
writel(val, host->ioaddr + reg);
}
@ -903,7 +916,8 @@ sdhci_esdhc_imx_probe_dt(struct platform_device *pdev,
mmc_of_parse_voltage(np, &host->ocr_mask);
return 0;
/* call to generic mmc_of_parse to support additional capabilities */
return mmc_of_parse(host->mmc);
}
#else
static inline int
@ -924,6 +938,7 @@ static int sdhci_esdhc_imx_probe(struct platform_device *pdev)
struct esdhc_platform_data *boarddata;
int err;
struct pltfm_imx_data *imx_data;
bool dt = true;
host = sdhci_pltfm_init(pdev, &sdhci_esdhc_imx_pdata, 0);
if (IS_ERR(host))
@ -991,6 +1006,16 @@ static int sdhci_esdhc_imx_probe(struct platform_device *pdev)
writel(0x08100810, host->ioaddr + ESDHC_WTMK_LVL);
host->quirks2 |= SDHCI_QUIRK2_PRESET_VALUE_BROKEN;
host->mmc->caps |= MMC_CAP_1_8V_DDR;
if (!(imx_data->socdata->flags & ESDHC_FLAG_HS200))
host->quirks2 |= SDHCI_QUIRK2_BROKEN_HS200;
/*
* errata ESDHC_FLAG_ERR004536 fix for MX6Q TO1.2 and MX6DL
* TO1.1, it's harmless for MX6SL
*/
writel(readl(host->ioaddr + 0x6c) | BIT(7),
host->ioaddr + 0x6c);
}
if (imx_data->socdata->flags & ESDHC_FLAG_MAN_TUNING)
@ -1002,6 +1027,9 @@ static int sdhci_esdhc_imx_probe(struct platform_device *pdev)
ESDHC_STD_TUNING_EN | ESDHC_TUNING_START_TAP,
host->ioaddr + ESDHC_TUNING_CTRL);
if (imx_data->socdata->flags & ESDHC_FLAG_ERR004536)
host->quirks |= SDHCI_QUIRK_BROKEN_ADMA;
boarddata = &imx_data->boarddata;
if (sdhci_esdhc_imx_probe_dt(pdev, host, boarddata) < 0) {
if (!host->mmc->parent->platform_data) {
@ -1011,11 +1039,44 @@ static int sdhci_esdhc_imx_probe(struct platform_device *pdev)
}
imx_data->boarddata = *((struct esdhc_platform_data *)
host->mmc->parent->platform_data);
dt = false;
}
/* write_protect */
if (boarddata->wp_type == ESDHC_WP_GPIO && !dt) {
err = mmc_gpio_request_ro(host->mmc, boarddata->wp_gpio);
if (err) {
dev_err(mmc_dev(host->mmc),
"failed to request write-protect gpio!\n");
goto disable_clk;
}
host->mmc->caps2 |= MMC_CAP2_RO_ACTIVE_HIGH;
}
/* card_detect */
if (boarddata->cd_type == ESDHC_CD_CONTROLLER)
switch (boarddata->cd_type) {
case ESDHC_CD_GPIO:
if (dt)
break;
err = mmc_gpio_request_cd(host->mmc, boarddata->cd_gpio, 0);
if (err) {
dev_err(mmc_dev(host->mmc),
"failed to request card-detect gpio!\n");
goto disable_clk;
}
/* fall through */
case ESDHC_CD_CONTROLLER:
/* we have a working card_detect back */
host->quirks &= ~SDHCI_QUIRK_BROKEN_CARD_DETECTION;
break;
case ESDHC_CD_PERMANENT:
host->mmc->caps |= MMC_CAP_NONREMOVABLE;
break;
case ESDHC_CD_NONE:
break;
}
switch (boarddata->max_bus_width) {
case 8:
@ -1048,11 +1109,6 @@ static int sdhci_esdhc_imx_probe(struct platform_device *pdev)
host->quirks2 |= SDHCI_QUIRK2_NO_1_8_V;
}
/* call to generic mmc_of_parse to support additional capabilities */
err = mmc_of_parse(host->mmc);
if (err)
goto disable_clk;
err = sdhci_add_host(host);
if (err)
goto disable_clk;
@ -1151,5 +1207,5 @@ static struct platform_driver sdhci_esdhc_imx_driver = {
module_platform_driver(sdhci_esdhc_imx_driver);
MODULE_DESCRIPTION("SDHCI driver for Freescale i.MX eSDHC");
MODULE_AUTHOR("Wolfram Sang <w.sang@pengutronix.de>");
MODULE_AUTHOR("Wolfram Sang <kernel@pengutronix.de>");
MODULE_LICENSE("GPL v2");

7
drivers/mmc/host/sdhci-of-arasan.c
View File

@ -20,6 +20,7 @@
*/
#include <linux/module.h>
#include <linux/of_device.h>
#include "sdhci-pltfm.h"
#define SDHCI_ARASAN_CLK_CTRL_OFFSET 0x2c
@ -168,6 +169,11 @@ static int sdhci_arasan_probe(struct platform_device *pdev)
goto clk_disable_all;
}
if (of_device_is_compatible(pdev->dev.of_node, "arasan,sdhci-4.9a")) {
host->quirks |= SDHCI_QUIRK_NO_HISPD_BIT;
host->quirks2 |= SDHCI_QUIRK2_HOST_NO_CMD23;
}
sdhci_get_of_property(pdev);
pltfm_host = sdhci_priv(host);
pltfm_host->priv = sdhci_arasan;
@ -208,6 +214,7 @@ static int sdhci_arasan_remove(struct platform_device *pdev)
static const struct of_device_id sdhci_arasan_of_match[] = {
{ .compatible = "arasan,sdhci-8.9a" },
{ .compatible = "arasan,sdhci-4.9a" },
{ }
};
MODULE_DEVICE_TABLE(of, sdhci_arasan_of_match);

11
drivers/mmc/host/sdhci-of-esdhc.c
View File

@ -199,7 +199,7 @@ static unsigned int esdhc_of_get_min_clock(struct sdhci_host *host)
static void esdhc_of_set_clock(struct sdhci_host *host, unsigned int clock)
{
int pre_div = 2;
int pre_div = 1;
int div = 1;
u32 temp;
@ -229,7 +229,7 @@ static void esdhc_of_set_clock(struct sdhci_host *host, unsigned int clock)
dev_dbg(mmc_dev(host->mmc), "desired SD clock: %d, actual: %d\n",
clock, host->max_clk / pre_div / div);
host->mmc->actual_clock = host->max_clk / pre_div / div;
pre_div >>= 1;
div--;
@ -361,6 +361,13 @@ static int sdhci_esdhc_probe(struct platform_device *pdev)
sdhci_get_of_property(pdev);
np = pdev->dev.of_node;
if (of_device_is_compatible(np, "fsl,p5040-esdhc") ||
of_device_is_compatible(np, "fsl,p5020-esdhc") ||
of_device_is_compatible(np, "fsl,p4080-esdhc") ||
of_device_is_compatible(np, "fsl,p1020-esdhc") ||
of_device_is_compatible(np, "fsl,t1040-esdhc"))
host->quirks &= ~SDHCI_QUIRK_BROKEN_CARD_DETECTION;
if (of_device_is_compatible(np, "fsl,p2020-esdhc")) {
/*
* Freescale messed up with P2020 as it has a non-standard

3
drivers/mmc/host/sdhci-pci-data.c
View File

@ -3,3 +3,6 @@
struct sdhci_pci_data *(*sdhci_pci_get_data)(struct pci_dev *pdev, int slotno);
EXPORT_SYMBOL_GPL(sdhci_pci_get_data);
int sdhci_pci_spt_drive_strength;
EXPORT_SYMBOL_GPL(sdhci_pci_spt_drive_strength);

109
drivers/mmc/host/sdhci-pci.c
View File

@ -20,6 +20,7 @@
#include <linux/slab.h>
#include <linux/device.h>
#include <linux/mmc/host.h>
#include <linux/mmc/mmc.h>
#include <linux/scatterlist.h>
#include <linux/io.h>
#include <linux/gpio.h>
@ -266,6 +267,69 @@ static void sdhci_pci_int_hw_reset(struct sdhci_host *host)
usleep_range(300, 1000);
}
static int spt_select_drive_strength(struct sdhci_host *host,
struct mmc_card *card,
unsigned int max_dtr,
int host_drv, int card_drv, int *drv_type)
{
int drive_strength;
if (sdhci_pci_spt_drive_strength > 0)
drive_strength = sdhci_pci_spt_drive_strength & 0xf;
else
drive_strength = 1; /* 33-ohm */
if ((mmc_driver_type_mask(drive_strength) & card_drv) == 0)
drive_strength = 0; /* Default 50-ohm */
return drive_strength;
}
/* Try to read the drive strength from the card */
static void spt_read_drive_strength(struct sdhci_host *host)
{
u32 val, i, t;
u16 m;
if (sdhci_pci_spt_drive_strength)
return;
sdhci_pci_spt_drive_strength = -1;
m = sdhci_readw(host, SDHCI_HOST_CONTROL2) & 0x7;
if (m != 3 && m != 5)
return;
val = sdhci_readl(host, SDHCI_PRESENT_STATE);
if (val & 0x3)
return;
sdhci_writel(host, 0x007f0023, SDHCI_INT_ENABLE);
sdhci_writel(host, 0, SDHCI_SIGNAL_ENABLE);
sdhci_writew(host, 0x10, SDHCI_TRANSFER_MODE);
sdhci_writeb(host, 0xe, SDHCI_TIMEOUT_CONTROL);
sdhci_writew(host, 512, SDHCI_BLOCK_SIZE);
sdhci_writew(host, 1, SDHCI_BLOCK_COUNT);
sdhci_writel(host, 0, SDHCI_ARGUMENT);
sdhci_writew(host, 0x83b, SDHCI_COMMAND);
for (i = 0; i < 1000; i++) {
val = sdhci_readl(host, SDHCI_INT_STATUS);
if (val & 0xffff8000)
return;
if (val & 0x20)
break;
udelay(1);
}
val = sdhci_readl(host, SDHCI_PRESENT_STATE);
if (!(val & 0x800))
return;
for (i = 0; i < 47; i++)
val = sdhci_readl(host, SDHCI_BUFFER);
t = val & 0xf00;
if (t != 0x200 && t != 0x300)
return;
sdhci_pci_spt_drive_strength = 0x10 | ((val >> 12) & 0xf);
}
static int byt_emmc_probe_slot(struct sdhci_pci_slot *slot)
{
slot->host->mmc->caps |= MMC_CAP_8_BIT_DATA | MMC_CAP_NONREMOVABLE |
@ -276,6 +340,10 @@ static int byt_emmc_probe_slot(struct sdhci_pci_slot *slot)
slot->hw_reset = sdhci_pci_int_hw_reset;
if (slot->chip->pdev->device == PCI_DEVICE_ID_INTEL_BSW_EMMC)
slot->host->timeout_clk = 1000; /* 1000 kHz i.e. 1 MHz */
if (slot->chip->pdev->device == PCI_DEVICE_ID_INTEL_SPT_EMMC) {
spt_read_drive_strength(slot->host);
slot->select_drive_strength = spt_select_drive_strength;
}
return 0;
}
@ -302,6 +370,7 @@ static const struct sdhci_pci_fixes sdhci_intel_byt_emmc = {
.probe_slot = byt_emmc_probe_slot,
.quirks = SDHCI_QUIRK_NO_ENDATTR_IN_NOPDESC,
.quirks2 = SDHCI_QUIRK2_PRESET_VALUE_BROKEN |
SDHCI_QUIRK2_CAPS_BIT63_FOR_HS400 |
SDHCI_QUIRK2_STOP_WITH_TC,
};
@ -655,14 +724,37 @@ static const struct sdhci_pci_fixes sdhci_rtsx = {
.probe_slot = rtsx_probe_slot,
};
/*AMD chipset generation*/
enum amd_chipset_gen {
AMD_CHIPSET_BEFORE_ML,
AMD_CHIPSET_CZ,
AMD_CHIPSET_NL,
AMD_CHIPSET_UNKNOWN,
};
static int amd_probe(struct sdhci_pci_chip *chip)
{
struct pci_dev *smbus_dev;
enum amd_chipset_gen gen;
smbus_dev = pci_get_device(PCI_VENDOR_ID_AMD,
PCI_DEVICE_ID_AMD_HUDSON2_SMBUS, NULL);
if (smbus_dev) {
gen = AMD_CHIPSET_BEFORE_ML;
} else {
smbus_dev = pci_get_device(PCI_VENDOR_ID_AMD,
PCI_DEVICE_ID_AMD_KERNCZ_SMBUS, NULL);
if (smbus_dev) {
if (smbus_dev->revision < 0x51)
gen = AMD_CHIPSET_CZ;
else
gen = AMD_CHIPSET_NL;
} else {
gen = AMD_CHIPSET_UNKNOWN;
}
}
if (smbus_dev && (smbus_dev->revision < 0x51)) {
if ((gen == AMD_CHIPSET_BEFORE_ML) || (gen == AMD_CHIPSET_CZ)) {
chip->quirks2 |= SDHCI_QUIRK2_CLEAR_TRANSFERMODE_REG_BEFORE_CMD;
chip->quirks2 |= SDHCI_QUIRK2_BROKEN_HS200;
}
@ -1203,6 +1295,20 @@ static void sdhci_pci_hw_reset(struct sdhci_host *host)
slot->hw_reset(host);
}
static int sdhci_pci_select_drive_strength(struct sdhci_host *host,
struct mmc_card *card,
unsigned int max_dtr, int host_drv,
int card_drv, int *drv_type)
{
struct sdhci_pci_slot *slot = sdhci_priv(host);
if (!slot->select_drive_strength)
return 0;
return slot->select_drive_strength(host, card, max_dtr, host_drv,
card_drv, drv_type);
}
static const struct sdhci_ops sdhci_pci_ops = {
.set_clock = sdhci_set_clock,
.enable_dma = sdhci_pci_enable_dma,
@ -1210,6 +1316,7 @@ static const struct sdhci_ops sdhci_pci_ops = {
.reset = sdhci_reset,
.set_uhs_signaling = sdhci_set_uhs_signaling,
.hw_reset = sdhci_pci_hw_reset,
.select_drive_strength = sdhci_pci_select_drive_strength,
};
/*****************************************************************************\

4
drivers/mmc/host/sdhci-pci.h
View File

@ -72,6 +72,10 @@ struct sdhci_pci_slot {
bool cd_override_level;
void (*hw_reset)(struct sdhci_host *host);
int (*select_drive_strength)(struct sdhci_host *host,
struct mmc_card *card,
unsigned int max_dtr, int host_drv,
int card_drv, int *drv_type);
};
struct sdhci_pci_chip {

4
drivers/mmc/host/sdhci-pxav2.c
View File

@ -252,9 +252,7 @@ static int sdhci_pxav2_remove(struct platform_device *pdev)
static struct platform_driver sdhci_pxav2_driver = {
.driver = {
.name = "sdhci-pxav2",
#ifdef CONFIG_OF
.of_match_table = sdhci_pxav2_of_match,
#endif
.of_match_table = of_match_ptr(sdhci_pxav2_of_match),
.pm = SDHCI_PLTFM_PMOPS,
},
.probe = sdhci_pxav2_probe,

10
drivers/mmc/host/sdhci-pxav3.c
View File

@ -457,12 +457,8 @@ static int sdhci_pxav3_probe(struct platform_device *pdev)
platform_set_drvdata(pdev, host);
if (host->mmc->pm_caps & MMC_PM_KEEP_POWER) {
if (host->mmc->pm_caps & MMC_PM_WAKE_SDIO_IRQ)
device_init_wakeup(&pdev->dev, 1);
host->mmc->pm_flags |= MMC_PM_WAKE_SDIO_IRQ;
} else {
device_init_wakeup(&pdev->dev, 0);
}
pm_runtime_put_autosuspend(&pdev->dev);
@ -578,9 +574,7 @@ static const struct dev_pm_ops sdhci_pxav3_pmops = {
static struct platform_driver sdhci_pxav3_driver = {
.driver = {
.name = "sdhci-pxav3",
#ifdef CONFIG_OF
.of_match_table = sdhci_pxav3_of_match,
#endif
.of_match_table = of_match_ptr(sdhci_pxav3_of_match),
.pm = SDHCI_PXAV3_PMOPS,
},
.probe = sdhci_pxav3_probe,

2
drivers/mmc/host/sdhci-s3c.c
View File

@ -736,7 +736,7 @@ static struct sdhci_s3c_drv_data exynos4_sdhci_drv_data = {
#define EXYNOS4_SDHCI_DRV_DATA ((kernel_ulong_t)NULL)
#endif
static struct platform_device_id sdhci_s3c_driver_ids[] = {
static const struct platform_device_id sdhci_s3c_driver_ids[] = {
{
.name = "s3c-sdhci",
.driver_data = (kernel_ulong_t)NULL,

44
drivers/mmc/host/sdhci-sirf.c
View File

@ -17,7 +17,7 @@
#define SDHCI_CLK_DELAY_SETTING 0x4C
#define SDHCI_SIRF_8BITBUS BIT(3)
#define SIRF_TUNING_COUNT 128
#define SIRF_TUNING_COUNT 16384
struct sdhci_sirf_priv {
int gpio_cd;
@ -43,10 +43,43 @@ static void sdhci_sirf_set_bus_width(struct sdhci_host *host, int width)
sdhci_writeb(host, ctrl, SDHCI_HOST_CONTROL);
}
static u32 sdhci_sirf_readl_le(struct sdhci_host *host, int reg)
{
u32 val = readl(host->ioaddr + reg);
if (unlikely((reg == SDHCI_CAPABILITIES_1) &&
(host->mmc->caps & MMC_CAP_UHS_SDR50))) {
/* fake CAP_1 register */
val = SDHCI_SUPPORT_SDR50 | SDHCI_USE_SDR50_TUNING;
}
if (unlikely(reg == SDHCI_SLOT_INT_STATUS)) {
u32 prss = val;
/* fake chips as V3.0 host conreoller */
prss &= ~(0xFF << 16);
val = prss | (SDHCI_SPEC_300 << 16);
}
return val;
}
static u16 sdhci_sirf_readw_le(struct sdhci_host *host, int reg)
{
u16 ret = 0;
ret = readw(host->ioaddr + reg);
if (unlikely(reg == SDHCI_HOST_VERSION)) {
ret = readw(host->ioaddr + SDHCI_HOST_VERSION);
ret |= SDHCI_SPEC_300;
}
return ret;
}
static int sdhci_sirf_execute_tuning(struct sdhci_host *host, u32 opcode)
{
int tuning_seq_cnt = 3;
u8 phase, tuned_phases[SIRF_TUNING_COUNT];
int phase;
u8 tuned_phase_cnt = 0;
int rc = 0, longest_range = 0;
int start = -1, end = 0, tuning_value = -1, range = 0;
@ -58,6 +91,7 @@ static int sdhci_sirf_execute_tuning(struct sdhci_host *host, u32 opcode)
retry:
phase = 0;
tuned_phase_cnt = 0;
do {
sdhci_writel(host,
clock_setting | phase,
@ -65,7 +99,7 @@ static int sdhci_sirf_execute_tuning(struct sdhci_host *host, u32 opcode)
if (!mmc_send_tuning(mmc)) {
/* Tuning is successful at this tuning point */
tuned_phases[tuned_phase_cnt++] = phase;
tuned_phase_cnt++;
dev_dbg(mmc_dev(mmc), "%s: Found good phase = %d\n",
mmc_hostname(mmc), phase);
if (start == -1)
@ -85,7 +119,7 @@ static int sdhci_sirf_execute_tuning(struct sdhci_host *host, u32 opcode)
start = -1;
end = range = 0;
}
} while (++phase < ARRAY_SIZE(tuned_phases));
} while (++phase < SIRF_TUNING_COUNT);
if (tuned_phase_cnt && tuning_value > 0) {
/*
@ -112,6 +146,8 @@ static int sdhci_sirf_execute_tuning(struct sdhci_host *host, u32 opcode)
}
static struct sdhci_ops sdhci_sirf_ops = {
.read_l = sdhci_sirf_readl_le,
.read_w = sdhci_sirf_readw_le,
.platform_execute_tuning = sdhci_sirf_execute_tuning,
.set_clock = sdhci_set_clock,
.get_max_clock = sdhci_pltfm_clk_get_max_clock,

2
drivers/mmc/host/sdhci-st.c
View File

@ -509,4 +509,4 @@ module_platform_driver(sdhci_st_driver);
MODULE_DESCRIPTION("SDHCI driver for STMicroelectronics SoCs");
MODULE_AUTHOR("Giuseppe Cavallaro <peppe.cavallaro@st.com>");
MODULE_LICENSE("GPL v2");
MODULE_ALIAS("platform:st-sdhci");
MODULE_ALIAS("platform:sdhci-st");

151
drivers/mmc/host/sdhci.c
View File

@ -52,7 +52,6 @@ static void sdhci_finish_data(struct sdhci_host *);
static void sdhci_finish_command(struct sdhci_host *);
static int sdhci_execute_tuning(struct mmc_host *mmc, u32 opcode);
static void sdhci_tuning_timer(unsigned long data);
static void sdhci_enable_preset_value(struct sdhci_host *host, bool enable);
static int sdhci_pre_dma_transfer(struct sdhci_host *host,
struct mmc_data *data,
@ -254,17 +253,6 @@ static void sdhci_init(struct sdhci_host *host, int soft)
static void sdhci_reinit(struct sdhci_host *host)
{
sdhci_init(host, 0);
/*
* Retuning stuffs are affected by different cards inserted and only
* applicable to UHS-I cards. So reset these fields to their initial
* value when card is removed.
*/
if (host->flags & SDHCI_USING_RETUNING_TIMER) {
host->flags &= ~SDHCI_USING_RETUNING_TIMER;
del_timer_sync(&host->tuning_timer);
host->flags &= ~SDHCI_NEEDS_RETUNING;
}
sdhci_enable_card_detection(host);
}
@ -328,8 +316,7 @@ static void sdhci_read_block_pio(struct sdhci_host *host)
local_irq_save(flags);
while (blksize) {
if (!sg_miter_next(&host->sg_miter))
BUG();
BUG_ON(!sg_miter_next(&host->sg_miter));
len = min(host->sg_miter.length, blksize);
@ -374,8 +361,7 @@ static void sdhci_write_block_pio(struct sdhci_host *host)
local_irq_save(flags);
while (blksize) {
if (!sg_miter_next(&host->sg_miter))
BUG();
BUG_ON(!sg_miter_next(&host->sg_miter));
len = min(host->sg_miter.length, blksize);
@ -848,7 +834,7 @@ static void sdhci_prepare_data(struct sdhci_host *host, struct mmc_command *cmd)
int sg_cnt;
sg_cnt = sdhci_pre_dma_transfer(host, data, NULL);
if (sg_cnt == 0) {
if (sg_cnt <= 0) {
/*
* This only happens when someone fed
* us an invalid request.
@ -1353,7 +1339,6 @@ static void sdhci_request(struct mmc_host *mmc, struct mmc_request *mrq)
struct sdhci_host *host;
int present;
unsigned long flags;
u32 tuning_opcode;
host = mmc_priv(mmc);
@ -1387,39 +1372,6 @@ static void sdhci_request(struct mmc_host *mmc, struct mmc_request *mrq)
host->mrq->cmd->error = -ENOMEDIUM;
tasklet_schedule(&host->finish_tasklet);
} else {
u32 present_state;
present_state = sdhci_readl(host, SDHCI_PRESENT_STATE);
/*
* Check if the re-tuning timer has already expired and there
* is no on-going data transfer and DAT0 is not busy. If so,
* we need to execute tuning procedure before sending command.
*/
if ((host->flags & SDHCI_NEEDS_RETUNING) &&
!(present_state & (SDHCI_DOING_WRITE | SDHCI_DOING_READ)) &&
(present_state & SDHCI_DATA_0_LVL_MASK)) {
if (mmc->card) {
/* eMMC uses cmd21 but sd and sdio use cmd19 */
tuning_opcode =
mmc->card->type == MMC_TYPE_MMC ?
MMC_SEND_TUNING_BLOCK_HS200 :
MMC_SEND_TUNING_BLOCK;
/* Here we need to set the host->mrq to NULL,
* in case the pending finish_tasklet
* finishes it incorrectly.
*/
host->mrq = NULL;
spin_unlock_irqrestore(&host->lock, flags);
sdhci_execute_tuning(mmc, tuning_opcode);
spin_lock_irqsave(&host->lock, flags);
/* Restore original mmc_request structure */
host->mrq = mrq;
}
}
if (mrq->sbc && !(host->flags & SDHCI_AUTO_CMD23))
sdhci_send_command(host, mrq->sbc);
else
@ -1562,8 +1514,17 @@ static void sdhci_do_set_ios(struct sdhci_host *host, struct mmc_ios *ios)
ctrl_2 &= ~SDHCI_CTRL_DRV_TYPE_MASK;
if (ios->drv_type == MMC_SET_DRIVER_TYPE_A)
ctrl_2 |= SDHCI_CTRL_DRV_TYPE_A;
else if (ios->drv_type == MMC_SET_DRIVER_TYPE_B)
ctrl_2 |= SDHCI_CTRL_DRV_TYPE_B;
else if (ios->drv_type == MMC_SET_DRIVER_TYPE_C)
ctrl_2 |= SDHCI_CTRL_DRV_TYPE_C;
else if (ios->drv_type == MMC_SET_DRIVER_TYPE_D)
ctrl_2 |= SDHCI_CTRL_DRV_TYPE_D;
else {
pr_warn("%s: invalid driver type, default to "
"driver type B\n", mmc_hostname(mmc));
ctrl_2 |= SDHCI_CTRL_DRV_TYPE_B;
}
sdhci_writew(host, ctrl_2, SDHCI_HOST_CONTROL2);
} else {
@ -2065,23 +2026,18 @@ static int sdhci_execute_tuning(struct mmc_host *mmc, u32 opcode)
}
out:
host->flags &= ~SDHCI_NEEDS_RETUNING;
if (tuning_count) {
host->flags |= SDHCI_USING_RETUNING_TIMER;
mod_timer(&host->tuning_timer, jiffies + tuning_count * HZ);
/*
* In case tuning fails, host controllers which support
* re-tuning can try tuning again at a later time, when the
* re-tuning timer expires. So for these controllers, we
* return 0. Since there might be other controllers who do not
* have this capability, we return error for them.
*/
err = 0;
}
/*
* In case tuning fails, host controllers which support re-tuning can
* try tuning again at a later time, when the re-tuning timer expires.
* So for these controllers, we return 0. Since there might be other
* controllers who do not have this capability, we return error for
* them. SDHCI_USING_RETUNING_TIMER means the host is currently using
* a retuning timer to do the retuning for the card.
*/
if (err && (host->flags & SDHCI_USING_RETUNING_TIMER))
err = 0;
host->mmc->retune_period = err ? 0 : tuning_count;
sdhci_writel(host, host->ier, SDHCI_INT_ENABLE);
sdhci_writel(host, host->ier, SDHCI_SIGNAL_ENABLE);
@ -2092,6 +2048,18 @@ static int sdhci_execute_tuning(struct mmc_host *mmc, u32 opcode)
return err;
}
static int sdhci_select_drive_strength(struct mmc_card *card,
unsigned int max_dtr, int host_drv,
int card_drv, int *drv_type)
{
struct sdhci_host *host = mmc_priv(card->host);
if (!host->ops->select_drive_strength)
return 0;
return host->ops->select_drive_strength(host, card, max_dtr, host_drv,
card_drv, drv_type);
}
static void sdhci_enable_preset_value(struct sdhci_host *host, bool enable)
{
@ -2236,6 +2204,7 @@ static const struct mmc_host_ops sdhci_ops = {
.start_signal_voltage_switch = sdhci_start_signal_voltage_switch,
.prepare_hs400_tuning = sdhci_prepare_hs400_tuning,
.execute_tuning = sdhci_execute_tuning,
.select_drive_strength = sdhci_select_drive_strength,
.card_event = sdhci_card_event,
.card_busy = sdhci_card_busy,
};
@ -2337,20 +2306,6 @@ static void sdhci_timeout_timer(unsigned long data)
spin_unlock_irqrestore(&host->lock, flags);
}
static void sdhci_tuning_timer(unsigned long data)
{
struct sdhci_host *host;
unsigned long flags;
host = (struct sdhci_host *)data;
spin_lock_irqsave(&host->lock, flags);
host->flags |= SDHCI_NEEDS_RETUNING;
spin_unlock_irqrestore(&host->lock, flags);
}
/*****************************************************************************\
* *
* Interrupt handling *
@ -2728,11 +2683,8 @@ int sdhci_suspend_host(struct sdhci_host *host)
{
sdhci_disable_card_detection(host);
/* Disable tuning since we are suspending */
if (host->flags & SDHCI_USING_RETUNING_TIMER) {
del_timer_sync(&host->tuning_timer);
host->flags &= ~SDHCI_NEEDS_RETUNING;
}
mmc_retune_timer_stop(host->mmc);
mmc_retune_needed(host->mmc);
if (!device_may_wakeup(mmc_dev(host->mmc))) {
host->ier = 0;
@ -2782,10 +2734,6 @@ int sdhci_resume_host(struct sdhci_host *host)
sdhci_enable_card_detection(host);
/* Set the re-tuning expiration flag */
if (host->flags & SDHCI_USING_RETUNING_TIMER)
host->flags |= SDHCI_NEEDS_RETUNING;
return ret;
}
@ -2822,11 +2770,8 @@ int sdhci_runtime_suspend_host(struct sdhci_host *host)
{
unsigned long flags;
/* Disable tuning since we are suspending */
if (host->flags & SDHCI_USING_RETUNING_TIMER) {
del_timer_sync(&host->tuning_timer);
host->flags &= ~SDHCI_NEEDS_RETUNING;
}
mmc_retune_timer_stop(host->mmc);
mmc_retune_needed(host->mmc);
spin_lock_irqsave(&host->lock, flags);
host->ier &= SDHCI_INT_CARD_INT;
@ -2869,10 +2814,6 @@ int sdhci_runtime_resume_host(struct sdhci_host *host)
spin_unlock_irqrestore(&host->lock, flags);
}
/* Set the re-tuning expiration flag */
if (host->flags & SDHCI_USING_RETUNING_TIMER)
host->flags |= SDHCI_NEEDS_RETUNING;
spin_lock_irqsave(&host->lock, flags);
host->runtime_suspended = false;
@ -3315,13 +3256,14 @@ int sdhci_add_host(struct sdhci_host *host)
SDHCI_MAX_CURRENT_MULTIPLIER;
}
/* If OCR set by external regulators, use it instead */
/* If OCR set by host, use it instead. */
if (host->ocr_mask)
ocr_avail = host->ocr_mask;
/* If OCR set by external regulators, give it highest prio. */
if (mmc->ocr_avail)
ocr_avail = mmc->ocr_avail;
if (host->ocr_mask)
ocr_avail &= host->ocr_mask;
mmc->ocr_avail = ocr_avail;
mmc->ocr_avail_sdio = ocr_avail;
if (host->ocr_avail_sdio)
@ -3408,13 +3350,6 @@ int sdhci_add_host(struct sdhci_host *host)
init_waitqueue_head(&host->buf_ready_int);
if (host->version >= SDHCI_SPEC_300) {
/* Initialize re-tuning timer */
init_timer(&host->tuning_timer);
host->tuning_timer.data = (unsigned long)host;
host->tuning_timer.function = sdhci_tuning_timer;
}
sdhci_init(host, 0);
ret = request_threaded_irq(host->irq, sdhci_irq, sdhci_thread_irq,

7
drivers/mmc/host/sdhci.h
View File

@ -432,13 +432,11 @@ struct sdhci_host {
#define SDHCI_REQ_USE_DMA (1<<2) /* Use DMA for this req. */
#define SDHCI_DEVICE_DEAD (1<<3) /* Device unresponsive */
#define SDHCI_SDR50_NEEDS_TUNING (1<<4) /* SDR50 needs tuning */
#define SDHCI_NEEDS_RETUNING (1<<5) /* Host needs retuning */
#define SDHCI_AUTO_CMD12 (1<<6) /* Auto CMD12 support */
#define SDHCI_AUTO_CMD23 (1<<7) /* Auto CMD23 support */
#define SDHCI_PV_ENABLED (1<<8) /* Preset value enabled */
#define SDHCI_SDIO_IRQ_ENABLED (1<<9) /* SDIO irq enabled */
#define SDHCI_SDR104_NEEDS_TUNING (1<<10) /* SDR104/HS200 needs tuning */
#define SDHCI_USING_RETUNING_TIMER (1<<11) /* Host is using a retuning timer for the card */
#define SDHCI_USE_64_BIT_DMA (1<<12) /* Use 64-bit DMA */
#define SDHCI_HS400_TUNING (1<<13) /* Tuning for HS400 */
@ -504,7 +502,6 @@ struct sdhci_host {
unsigned int tuning_count; /* Timer count for re-tuning */
unsigned int tuning_mode; /* Re-tuning mode supported by host */
#define SDHCI_TUNING_MODE_1 0
struct timer_list tuning_timer; /* Timer for tuning */
struct sdhci_host_next next_data;
unsigned long private[0] ____cacheline_aligned;
@ -541,6 +538,10 @@ struct sdhci_ops {
void (*platform_init)(struct sdhci_host *host);
void (*card_event)(struct sdhci_host *host);
void (*voltage_switch)(struct sdhci_host *host);
int (*select_drive_strength)(struct sdhci_host *host,
struct mmc_card *card,
unsigned int max_dtr, int host_drv,
int card_drv, int *drv_type);
};
#ifdef CONFIG_MMC_SDHCI_IO_ACCESSORS

9
drivers/mmc/host/sdhci_f_sdh30.c
View File

@ -49,7 +49,7 @@ struct f_sdhost_priv {
struct device *dev;
};
void sdhci_f_sdh30_soft_voltage_switch(struct sdhci_host *host)
static void sdhci_f_sdh30_soft_voltage_switch(struct sdhci_host *host)
{
struct f_sdhost_priv *priv = sdhci_priv(host);
u32 ctrl = 0;
@ -77,12 +77,12 @@ void sdhci_f_sdh30_soft_voltage_switch(struct sdhci_host *host)
sdhci_writel(host, ctrl, F_SDH30_TUNING_SETTING);
}
unsigned int sdhci_f_sdh30_get_min_clock(struct sdhci_host *host)
static unsigned int sdhci_f_sdh30_get_min_clock(struct sdhci_host *host)
{
return F_SDH30_MIN_CLOCK;
}
void sdhci_f_sdh30_reset(struct sdhci_host *host, u8 mask)
static void sdhci_f_sdh30_reset(struct sdhci_host *host, u8 mask)
{
if (sdhci_readw(host, SDHCI_CLOCK_CONTROL) == 0)
sdhci_writew(host, 0xBC01, SDHCI_CLOCK_CONTROL);
@ -114,8 +114,7 @@ static int sdhci_f_sdh30_probe(struct platform_device *pdev)
return irq;
}
host = sdhci_alloc_host(dev, sizeof(struct sdhci_host) +
sizeof(struct f_sdhost_priv));
host = sdhci_alloc_host(dev, sizeof(struct f_sdhost_priv));
if (IS_ERR(host))
return PTR_ERR(host);

296
drivers/mmc/host/sh_mmcif.c
View File

@ -57,6 +57,7 @@
#include <linux/mmc/slot-gpio.h>
#include <linux/mod_devicetable.h>
#include <linux/mutex.h>
#include <linux/of_device.h>
#include <linux/pagemap.h>
#include <linux/platform_device.h>
#include <linux/pm_qos.h>
@ -205,14 +206,14 @@
#define CLKDEV_MMC_DATA 20000000 /* 20MHz */
#define CLKDEV_INIT 400000 /* 400 KHz */
enum mmcif_state {
enum sh_mmcif_state {
STATE_IDLE,
STATE_REQUEST,
STATE_IOS,
STATE_TIMEOUT,
};
enum mmcif_wait_for {
enum sh_mmcif_wait_for {
MMCIF_WAIT_FOR_REQUEST,
MMCIF_WAIT_FOR_CMD,
MMCIF_WAIT_FOR_MREAD,
@ -224,12 +225,14 @@ enum mmcif_wait_for {
MMCIF_WAIT_FOR_STOP,
};
/*
* difference for each SoC
*/
struct sh_mmcif_host {
struct mmc_host *mmc;
struct mmc_request *mrq;
struct platform_device *pd;
struct clk *hclk;
unsigned int clk;
struct clk *clk;
int bus_width;
unsigned char timing;
bool sd_error;
@ -238,8 +241,8 @@ struct sh_mmcif_host {
void __iomem *addr;
u32 *pio_ptr;
spinlock_t lock; /* protect sh_mmcif_host::state */
enum mmcif_state state;
enum mmcif_wait_for wait_for;
enum sh_mmcif_state state;
enum sh_mmcif_wait_for wait_for;
struct delayed_work timeout_work;
size_t blocksize;
int sg_idx;
@ -249,6 +252,7 @@ struct sh_mmcif_host {
bool ccs_enable; /* Command Completion Signal support */
bool clk_ctrl2_enable;
struct mutex thread_lock;
u32 clkdiv_map; /* see CE_CLK_CTRL::CLKDIV */
/* DMA support */
struct dma_chan *chan_rx;
@ -257,6 +261,14 @@ struct sh_mmcif_host {
bool dma_active;
};
static const struct of_device_id sh_mmcif_of_match[] = {
{ .compatible = "renesas,sh-mmcif" },
{ }
};
MODULE_DEVICE_TABLE(of, sh_mmcif_of_match);
#define sh_mmcif_host_to_dev(host) (&host->pd->dev)
static inline void sh_mmcif_bitset(struct sh_mmcif_host *host,
unsigned int reg, u32 val)
{
@ -269,15 +281,16 @@ static inline void sh_mmcif_bitclr(struct sh_mmcif_host *host,
writel(~val & readl(host->addr + reg), host->addr + reg);
}
static void mmcif_dma_complete(void *arg)
static void sh_mmcif_dma_complete(void *arg)
{
struct sh_mmcif_host *host = arg;
struct mmc_request *mrq = host->mrq;
struct device *dev = sh_mmcif_host_to_dev(host);
dev_dbg(&host->pd->dev, "Command completed\n");
dev_dbg(dev, "Command completed\n");
if (WARN(!mrq || !mrq->data, "%s: NULL data in DMA completion!\n",
dev_name(&host->pd->dev)))
dev_name(dev)))
return;
complete(&host->dma_complete);
@ -289,6 +302,7 @@ static void sh_mmcif_start_dma_rx(struct sh_mmcif_host *host)
struct scatterlist *sg = data->sg;
struct dma_async_tx_descriptor *desc = NULL;
struct dma_chan *chan = host->chan_rx;
struct device *dev = sh_mmcif_host_to_dev(host);
dma_cookie_t cookie = -EINVAL;
int ret;
@ -301,13 +315,13 @@ static void sh_mmcif_start_dma_rx(struct sh_mmcif_host *host)
}
if (desc) {
desc->callback = mmcif_dma_complete;
desc->callback = sh_mmcif_dma_complete;
desc->callback_param = host;
cookie = dmaengine_submit(desc);
sh_mmcif_bitset(host, MMCIF_CE_BUF_ACC, BUF_ACC_DMAREN);
dma_async_issue_pending(chan);
}
dev_dbg(&host->pd->dev, "%s(): mapped %d -> %d, cookie %d\n",
dev_dbg(dev, "%s(): mapped %d -> %d, cookie %d\n",
__func__, data->sg_len, ret, cookie);
if (!desc) {
@ -323,12 +337,12 @@ static void sh_mmcif_start_dma_rx(struct sh_mmcif_host *host)
host->chan_tx = NULL;
dma_release_channel(chan);
}
dev_warn(&host->pd->dev,
dev_warn(dev,
"DMA failed: %d, falling back to PIO\n", ret);
sh_mmcif_bitclr(host, MMCIF_CE_BUF_ACC, BUF_ACC_DMAREN | BUF_ACC_DMAWEN);
}
dev_dbg(&host->pd->dev, "%s(): desc %p, cookie %d, sg[%d]\n", __func__,
dev_dbg(dev, "%s(): desc %p, cookie %d, sg[%d]\n", __func__,
desc, cookie, data->sg_len);
}
@ -338,6 +352,7 @@ static void sh_mmcif_start_dma_tx(struct sh_mmcif_host *host)
struct scatterlist *sg = data->sg;
struct dma_async_tx_descriptor *desc = NULL;
struct dma_chan *chan = host->chan_tx;
struct device *dev = sh_mmcif_host_to_dev(host);
dma_cookie_t cookie = -EINVAL;
int ret;
@ -350,13 +365,13 @@ static void sh_mmcif_start_dma_tx(struct sh_mmcif_host *host)
}
if (desc) {
desc->callback = mmcif_dma_complete;
desc->callback = sh_mmcif_dma_complete;
desc->callback_param = host;
cookie = dmaengine_submit(desc);
sh_mmcif_bitset(host, MMCIF_CE_BUF_ACC, BUF_ACC_DMAWEN);
dma_async_issue_pending(chan);
}
dev_dbg(&host->pd->dev, "%s(): mapped %d -> %d, cookie %d\n",
dev_dbg(dev, "%s(): mapped %d -> %d, cookie %d\n",
__func__, data->sg_len, ret, cookie);
if (!desc) {
@ -372,12 +387,12 @@ static void sh_mmcif_start_dma_tx(struct sh_mmcif_host *host)
host->chan_rx = NULL;
dma_release_channel(chan);
}
dev_warn(&host->pd->dev,
dev_warn(dev,
"DMA failed: %d, falling back to PIO\n", ret);
sh_mmcif_bitclr(host, MMCIF_CE_BUF_ACC, BUF_ACC_DMAREN | BUF_ACC_DMAWEN);
}
dev_dbg(&host->pd->dev, "%s(): desc %p, cookie %d\n", __func__,
dev_dbg(dev, "%s(): desc %p, cookie %d\n", __func__,
desc, cookie);
}
@ -390,6 +405,7 @@ sh_mmcif_request_dma_one(struct sh_mmcif_host *host,
struct dma_chan *chan;
void *slave_data = NULL;
struct resource *res;
struct device *dev = sh_mmcif_host_to_dev(host);
dma_cap_mask_t mask;
int ret;
@ -402,10 +418,10 @@ sh_mmcif_request_dma_one(struct sh_mmcif_host *host,
(void *)pdata->slave_id_rx;
chan = dma_request_slave_channel_compat(mask, shdma_chan_filter,
slave_data, &host->pd->dev,
slave_data, dev,
direction == DMA_MEM_TO_DEV ? "tx" : "rx");
dev_dbg(&host->pd->dev, "%s: %s: got channel %p\n", __func__,
dev_dbg(dev, "%s: %s: got channel %p\n", __func__,
direction == DMA_MEM_TO_DEV ? "TX" : "RX", chan);
if (!chan)
@ -435,12 +451,13 @@ sh_mmcif_request_dma_one(struct sh_mmcif_host *host,
static void sh_mmcif_request_dma(struct sh_mmcif_host *host,
struct sh_mmcif_plat_data *pdata)
{
struct device *dev = sh_mmcif_host_to_dev(host);
host->dma_active = false;
if (pdata) {
if (pdata->slave_id_tx <= 0 || pdata->slave_id_rx <= 0)
return;
} else if (!host->pd->dev.of_node) {
} else if (!dev->of_node) {
return;
}
@ -476,21 +493,59 @@ static void sh_mmcif_release_dma(struct sh_mmcif_host *host)
static void sh_mmcif_clock_control(struct sh_mmcif_host *host, unsigned int clk)
{
struct sh_mmcif_plat_data *p = host->pd->dev.platform_data;
struct device *dev = sh_mmcif_host_to_dev(host);
struct sh_mmcif_plat_data *p = dev->platform_data;
bool sup_pclk = p ? p->sup_pclk : false;
unsigned int current_clk = clk_get_rate(host->clk);
unsigned int clkdiv;
sh_mmcif_bitclr(host, MMCIF_CE_CLK_CTRL, CLK_ENABLE);
sh_mmcif_bitclr(host, MMCIF_CE_CLK_CTRL, CLK_CLEAR);
if (!clk)
return;
if (sup_pclk && clk == host->clk)
sh_mmcif_bitset(host, MMCIF_CE_CLK_CTRL, CLK_SUP_PCLK);
else
sh_mmcif_bitset(host, MMCIF_CE_CLK_CTRL, CLK_CLEAR &
((fls(DIV_ROUND_UP(host->clk,
clk) - 1) - 1) << 16));
if (host->clkdiv_map) {
unsigned int freq, best_freq, myclk, div, diff_min, diff;
int i;
clkdiv = 0;
diff_min = ~0;
best_freq = 0;
for (i = 31; i >= 0; i--) {
if (!((1 << i) & host->clkdiv_map))
continue;
/*
* clk = parent_freq / div
* -> parent_freq = clk x div
*/
div = 1 << (i + 1);
freq = clk_round_rate(host->clk, clk * div);
myclk = freq / div;
diff = (myclk > clk) ? myclk - clk : clk - myclk;
if (diff <= diff_min) {
best_freq = freq;
clkdiv = i;
diff_min = diff;
}
}
dev_dbg(dev, "clk %u/%u (%u, 0x%x)\n",
(best_freq / (1 << (clkdiv + 1))), clk,
best_freq, clkdiv);
clk_set_rate(host->clk, best_freq);
clkdiv = clkdiv << 16;
} else if (sup_pclk && clk == current_clk) {
clkdiv = CLK_SUP_PCLK;
} else {
clkdiv = (fls(DIV_ROUND_UP(current_clk, clk) - 1) - 1) << 16;
}
sh_mmcif_bitset(host, MMCIF_CE_CLK_CTRL, CLK_CLEAR & clkdiv);
sh_mmcif_bitset(host, MMCIF_CE_CLK_CTRL, CLK_ENABLE);
}
@ -514,6 +569,7 @@ static void sh_mmcif_sync_reset(struct sh_mmcif_host *host)
static int sh_mmcif_error_manage(struct sh_mmcif_host *host)
{
struct device *dev = sh_mmcif_host_to_dev(host);
u32 state1, state2;
int ret, timeout;
@ -521,8 +577,8 @@ static int sh_mmcif_error_manage(struct sh_mmcif_host *host)
state1 = sh_mmcif_readl(host->addr, MMCIF_CE_HOST_STS1);
state2 = sh_mmcif_readl(host->addr, MMCIF_CE_HOST_STS2);
dev_dbg(&host->pd->dev, "ERR HOST_STS1 = %08x\n", state1);
dev_dbg(&host->pd->dev, "ERR HOST_STS2 = %08x\n", state2);
dev_dbg(dev, "ERR HOST_STS1 = %08x\n", state1);
dev_dbg(dev, "ERR HOST_STS2 = %08x\n", state2);
if (state1 & STS1_CMDSEQ) {
sh_mmcif_bitset(host, MMCIF_CE_CMD_CTRL, CMD_CTRL_BREAK);
@ -534,25 +590,25 @@ static int sh_mmcif_error_manage(struct sh_mmcif_host *host)
mdelay(1);
}
if (!timeout) {
dev_err(&host->pd->dev,
dev_err(dev,
"Forced end of command sequence timeout err\n");
return -EIO;
}
sh_mmcif_sync_reset(host);
dev_dbg(&host->pd->dev, "Forced end of command sequence\n");
dev_dbg(dev, "Forced end of command sequence\n");
return -EIO;
}
if (state2 & STS2_CRC_ERR) {
dev_err(&host->pd->dev, " CRC error: state %u, wait %u\n",
dev_err(dev, " CRC error: state %u, wait %u\n",
host->state, host->wait_for);
ret = -EIO;
} else if (state2 & STS2_TIMEOUT_ERR) {
dev_err(&host->pd->dev, " Timeout: state %u, wait %u\n",
dev_err(dev, " Timeout: state %u, wait %u\n",
host->state, host->wait_for);
ret = -ETIMEDOUT;
} else {
dev_dbg(&host->pd->dev, " End/Index error: state %u, wait %u\n",
dev_dbg(dev, " End/Index error: state %u, wait %u\n",
host->state, host->wait_for);
ret = -EIO;
}
@ -593,13 +649,14 @@ static void sh_mmcif_single_read(struct sh_mmcif_host *host,
static bool sh_mmcif_read_block(struct sh_mmcif_host *host)
{
struct device *dev = sh_mmcif_host_to_dev(host);
struct mmc_data *data = host->mrq->data;
u32 *p = sg_virt(data->sg);
int i;
if (host->sd_error) {
data->error = sh_mmcif_error_manage(host);
dev_dbg(&host->pd->dev, "%s(): %d\n", __func__, data->error);
dev_dbg(dev, "%s(): %d\n", __func__, data->error);
return false;
}
@ -634,13 +691,14 @@ static void sh_mmcif_multi_read(struct sh_mmcif_host *host,
static bool sh_mmcif_mread_block(struct sh_mmcif_host *host)
{
struct device *dev = sh_mmcif_host_to_dev(host);
struct mmc_data *data = host->mrq->data;
u32 *p = host->pio_ptr;
int i;
if (host->sd_error) {
data->error = sh_mmcif_error_manage(host);
dev_dbg(&host->pd->dev, "%s(): %d\n", __func__, data->error);
dev_dbg(dev, "%s(): %d\n", __func__, data->error);
return false;
}
@ -671,13 +729,14 @@ static void sh_mmcif_single_write(struct sh_mmcif_host *host,
static bool sh_mmcif_write_block(struct sh_mmcif_host *host)
{
struct device *dev = sh_mmcif_host_to_dev(host);
struct mmc_data *data = host->mrq->data;
u32 *p = sg_virt(data->sg);
int i;
if (host->sd_error) {
data->error = sh_mmcif_error_manage(host);
dev_dbg(&host->pd->dev, "%s(): %d\n", __func__, data->error);
dev_dbg(dev, "%s(): %d\n", __func__, data->error);
return false;
}
@ -712,13 +771,14 @@ static void sh_mmcif_multi_write(struct sh_mmcif_host *host,
static bool sh_mmcif_mwrite_block(struct sh_mmcif_host *host)
{
struct device *dev = sh_mmcif_host_to_dev(host);
struct mmc_data *data = host->mrq->data;
u32 *p = host->pio_ptr;
int i;
if (host->sd_error) {
data->error = sh_mmcif_error_manage(host);
dev_dbg(&host->pd->dev, "%s(): %d\n", __func__, data->error);
dev_dbg(dev, "%s(): %d\n", __func__, data->error);
return false;
}
@ -756,6 +816,7 @@ static void sh_mmcif_get_cmd12response(struct sh_mmcif_host *host,
static u32 sh_mmcif_set_cmd(struct sh_mmcif_host *host,
struct mmc_request *mrq)
{
struct device *dev = sh_mmcif_host_to_dev(host);
struct mmc_data *data = mrq->data;
struct mmc_command *cmd = mrq->cmd;
u32 opc = cmd->opcode;
@ -775,7 +836,7 @@ static u32 sh_mmcif_set_cmd(struct sh_mmcif_host *host,
tmp |= CMD_SET_RTYP_17B;
break;
default:
dev_err(&host->pd->dev, "Unsupported response type.\n");
dev_err(dev, "Unsupported response type.\n");
break;
}
switch (opc) {
@ -803,7 +864,7 @@ static u32 sh_mmcif_set_cmd(struct sh_mmcif_host *host,
tmp |= CMD_SET_DATW_8;
break;
default:
dev_err(&host->pd->dev, "Unsupported bus width.\n");
dev_err(dev, "Unsupported bus width.\n");
break;
}
switch (host->timing) {
@ -846,6 +907,8 @@ static u32 sh_mmcif_set_cmd(struct sh_mmcif_host *host,
static int sh_mmcif_data_trans(struct sh_mmcif_host *host,
struct mmc_request *mrq, u32 opc)
{
struct device *dev = sh_mmcif_host_to_dev(host);
switch (opc) {
case MMC_READ_MULTIPLE_BLOCK:
sh_mmcif_multi_read(host, mrq);
@ -861,7 +924,7 @@ static int sh_mmcif_data_trans(struct sh_mmcif_host *host,
sh_mmcif_single_read(host, mrq);
return 0;
default:
dev_err(&host->pd->dev, "Unsupported CMD%d\n", opc);
dev_err(dev, "Unsupported CMD%d\n", opc);
return -EINVAL;
}
}
@ -918,6 +981,8 @@ static void sh_mmcif_start_cmd(struct sh_mmcif_host *host,
static void sh_mmcif_stop_cmd(struct sh_mmcif_host *host,
struct mmc_request *mrq)
{
struct device *dev = sh_mmcif_host_to_dev(host);
switch (mrq->cmd->opcode) {
case MMC_READ_MULTIPLE_BLOCK:
sh_mmcif_bitset(host, MMCIF_CE_INT_MASK, MASK_MCMD12DRE);
@ -926,7 +991,7 @@ static void sh_mmcif_stop_cmd(struct sh_mmcif_host *host,
sh_mmcif_bitset(host, MMCIF_CE_INT_MASK, MASK_MCMD12RBE);
break;
default:
dev_err(&host->pd->dev, "unsupported stop cmd\n");
dev_err(dev, "unsupported stop cmd\n");
mrq->stop->error = sh_mmcif_error_manage(host);
return;
}
@ -937,11 +1002,13 @@ static void sh_mmcif_stop_cmd(struct sh_mmcif_host *host,
static void sh_mmcif_request(struct mmc_host *mmc, struct mmc_request *mrq)
{
struct sh_mmcif_host *host = mmc_priv(mmc);
struct device *dev = sh_mmcif_host_to_dev(host);
unsigned long flags;
spin_lock_irqsave(&host->lock, flags);
if (host->state != STATE_IDLE) {
dev_dbg(&host->pd->dev, "%s() rejected, state %u\n", __func__, host->state);
dev_dbg(dev, "%s() rejected, state %u\n",
__func__, host->state);
spin_unlock_irqrestore(&host->lock, flags);
mrq->cmd->error = -EAGAIN;
mmc_request_done(mmc, mrq);
@ -972,17 +1039,37 @@ static void sh_mmcif_request(struct mmc_host *mmc, struct mmc_request *mrq)
sh_mmcif_start_cmd(host, mrq);
}
static int sh_mmcif_clk_update(struct sh_mmcif_host *host)
static void sh_mmcif_clk_setup(struct sh_mmcif_host *host)
{
int ret = clk_prepare_enable(host->hclk);
struct device *dev = sh_mmcif_host_to_dev(host);
if (!ret) {
host->clk = clk_get_rate(host->hclk);
host->mmc->f_max = host->clk / 2;
host->mmc->f_min = host->clk / 512;
if (host->mmc->f_max) {
unsigned int f_max, f_min = 0, f_min_old;
f_max = host->mmc->f_max;
for (f_min_old = f_max; f_min_old > 2;) {
f_min = clk_round_rate(host->clk, f_min_old / 2);
if (f_min == f_min_old)
break;
f_min_old = f_min;
}
/*
* This driver assumes this SoC is R-Car Gen2 or later
*/
host->clkdiv_map = 0x3ff;
host->mmc->f_max = f_max / (1 << ffs(host->clkdiv_map));
host->mmc->f_min = f_min / (1 << fls(host->clkdiv_map));
} else {
unsigned int clk = clk_get_rate(host->clk);
host->mmc->f_max = clk / 2;
host->mmc->f_min = clk / 512;
}
return ret;
dev_dbg(dev, "clk max/min = %d/%d\n",
host->mmc->f_max, host->mmc->f_min);
}
static void sh_mmcif_set_power(struct sh_mmcif_host *host, struct mmc_ios *ios)
@ -998,11 +1085,13 @@ static void sh_mmcif_set_power(struct sh_mmcif_host *host, struct mmc_ios *ios)
static void sh_mmcif_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
{
struct sh_mmcif_host *host = mmc_priv(mmc);
struct device *dev = sh_mmcif_host_to_dev(host);
unsigned long flags;
spin_lock_irqsave(&host->lock, flags);
if (host->state != STATE_IDLE) {
dev_dbg(&host->pd->dev, "%s() rejected, state %u\n", __func__, host->state);
dev_dbg(dev, "%s() rejected, state %u\n",
__func__, host->state);
spin_unlock_irqrestore(&host->lock, flags);
return;
}
@ -1013,7 +1102,7 @@ static void sh_mmcif_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
if (ios->power_mode == MMC_POWER_UP) {
if (!host->card_present) {
/* See if we also get DMA */
sh_mmcif_request_dma(host, host->pd->dev.platform_data);
sh_mmcif_request_dma(host, dev->platform_data);
host->card_present = true;
}
sh_mmcif_set_power(host, ios);
@ -1027,8 +1116,8 @@ static void sh_mmcif_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
}
}
if (host->power) {
pm_runtime_put_sync(&host->pd->dev);
clk_disable_unprepare(host->hclk);
pm_runtime_put_sync(dev);
clk_disable_unprepare(host->clk);
host->power = false;
if (ios->power_mode == MMC_POWER_OFF)
sh_mmcif_set_power(host, ios);
@ -1039,8 +1128,9 @@ static void sh_mmcif_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
if (ios->clock) {
if (!host->power) {
sh_mmcif_clk_update(host);
pm_runtime_get_sync(&host->pd->dev);
clk_prepare_enable(host->clk);
pm_runtime_get_sync(dev);
host->power = true;
sh_mmcif_sync_reset(host);
}
@ -1055,7 +1145,8 @@ static void sh_mmcif_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
static int sh_mmcif_get_cd(struct mmc_host *mmc)
{
struct sh_mmcif_host *host = mmc_priv(mmc);
struct sh_mmcif_plat_data *p = host->pd->dev.platform_data;
struct device *dev = sh_mmcif_host_to_dev(host);
struct sh_mmcif_plat_data *p = dev->platform_data;
int ret = mmc_gpio_get_cd(mmc);
if (ret >= 0)
@ -1077,6 +1168,7 @@ static bool sh_mmcif_end_cmd(struct sh_mmcif_host *host)
{
struct mmc_command *cmd = host->mrq->cmd;
struct mmc_data *data = host->mrq->data;
struct device *dev = sh_mmcif_host_to_dev(host);
long time;
if (host->sd_error) {
@ -1090,7 +1182,7 @@ static bool sh_mmcif_end_cmd(struct sh_mmcif_host *host)
cmd->error = sh_mmcif_error_manage(host);
break;
}
dev_dbg(&host->pd->dev, "CMD%d error %d\n",
dev_dbg(dev, "CMD%d error %d\n",
cmd->opcode, cmd->error);
host->sd_error = false;
return false;
@ -1170,6 +1262,7 @@ static irqreturn_t sh_mmcif_irqt(int irq, void *dev_id)
{
struct sh_mmcif_host *host = dev_id;
struct mmc_request *mrq;
struct device *dev = sh_mmcif_host_to_dev(host);
bool wait = false;
unsigned long flags;
int wait_work;
@ -1184,7 +1277,7 @@ static irqreturn_t sh_mmcif_irqt(int irq, void *dev_id)
mrq = host->mrq;
if (!mrq) {
dev_dbg(&host->pd->dev, "IRQ thread state %u, wait %u: NULL mrq!\n",
dev_dbg(dev, "IRQ thread state %u, wait %u: NULL mrq!\n",
host->state, host->wait_for);
mutex_unlock(&host->thread_lock);
return IRQ_HANDLED;
@ -1222,7 +1315,7 @@ static irqreturn_t sh_mmcif_irqt(int irq, void *dev_id)
case MMCIF_WAIT_FOR_STOP:
if (host->sd_error) {
mrq->stop->error = sh_mmcif_error_manage(host);
dev_dbg(&host->pd->dev, "%s(): %d\n", __func__, mrq->stop->error);
dev_dbg(dev, "%s(): %d\n", __func__, mrq->stop->error);
break;
}
sh_mmcif_get_cmd12response(host, mrq->stop);
@ -1232,7 +1325,7 @@ static irqreturn_t sh_mmcif_irqt(int irq, void *dev_id)
case MMCIF_WAIT_FOR_WRITE_END:
if (host->sd_error) {
mrq->data->error = sh_mmcif_error_manage(host);
dev_dbg(&host->pd->dev, "%s(): %d\n", __func__, mrq->data->error);
dev_dbg(dev, "%s(): %d\n", __func__, mrq->data->error);
}
break;
default:
@ -1275,6 +1368,7 @@ static irqreturn_t sh_mmcif_irqt(int irq, void *dev_id)
static irqreturn_t sh_mmcif_intr(int irq, void *dev_id)
{
struct sh_mmcif_host *host = dev_id;
struct device *dev = sh_mmcif_host_to_dev(host);
u32 state, mask;
state = sh_mmcif_readl(host->addr, MMCIF_CE_INT);
@ -1286,32 +1380,33 @@ static irqreturn_t sh_mmcif_intr(int irq, void *dev_id)
sh_mmcif_bitclr(host, MMCIF_CE_INT_MASK, state & MASK_CLEAN);
if (state & ~MASK_CLEAN)
dev_dbg(&host->pd->dev, "IRQ state = 0x%08x incompletely cleared\n",
dev_dbg(dev, "IRQ state = 0x%08x incompletely cleared\n",
state);
if (state & INT_ERR_STS || state & ~INT_ALL) {
host->sd_error = true;
dev_dbg(&host->pd->dev, "int err state = 0x%08x\n", state);
dev_dbg(dev, "int err state = 0x%08x\n", state);
}
if (state & ~(INT_CMD12RBE | INT_CMD12CRE)) {
if (!host->mrq)
dev_dbg(&host->pd->dev, "NULL IRQ state = 0x%08x\n", state);
dev_dbg(dev, "NULL IRQ state = 0x%08x\n", state);
if (!host->dma_active)
return IRQ_WAKE_THREAD;
else if (host->sd_error)
mmcif_dma_complete(host);
sh_mmcif_dma_complete(host);
} else {
dev_dbg(&host->pd->dev, "Unexpected IRQ 0x%x\n", state);
dev_dbg(dev, "Unexpected IRQ 0x%x\n", state);
}
return IRQ_HANDLED;
}
static void mmcif_timeout_work(struct work_struct *work)
static void sh_mmcif_timeout_work(struct work_struct *work)
{
struct delayed_work *d = container_of(work, struct delayed_work, work);
struct sh_mmcif_host *host = container_of(d, struct sh_mmcif_host, timeout_work);
struct mmc_request *mrq = host->mrq;
struct device *dev = sh_mmcif_host_to_dev(host);
unsigned long flags;
if (host->dying)
@ -1324,7 +1419,7 @@ static void mmcif_timeout_work(struct work_struct *work)
return;
}
dev_err(&host->pd->dev, "Timeout waiting for %u on CMD%u\n",
dev_err(dev, "Timeout waiting for %u on CMD%u\n",
host->wait_for, mrq->cmd->opcode);
host->state = STATE_TIMEOUT;
@ -1361,7 +1456,8 @@ static void mmcif_timeout_work(struct work_struct *work)
static void sh_mmcif_init_ocr(struct sh_mmcif_host *host)
{
struct sh_mmcif_plat_data *pd = host->pd->dev.platform_data;
struct device *dev = sh_mmcif_host_to_dev(host);
struct sh_mmcif_plat_data *pd = dev->platform_data;
struct mmc_host *mmc = host->mmc;
mmc_regulator_get_supply(mmc);
@ -1380,7 +1476,8 @@ static int sh_mmcif_probe(struct platform_device *pdev)
int ret = 0, irq[2];
struct mmc_host *mmc;
struct sh_mmcif_host *host;
struct sh_mmcif_plat_data *pd = pdev->dev.platform_data;
struct device *dev = &pdev->dev;
struct sh_mmcif_plat_data *pd = dev->platform_data;
struct resource *res;
void __iomem *reg;
const char *name;
@ -1388,16 +1485,16 @@ static int sh_mmcif_probe(struct platform_device *pdev)
irq[0] = platform_get_irq(pdev, 0);
irq[1] = platform_get_irq(pdev, 1);
if (irq[0] < 0) {
dev_err(&pdev->dev, "Get irq error\n");
dev_err(dev, "Get irq error\n");
return -ENXIO;
}
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
reg = devm_ioremap_resource(&pdev->dev, res);
reg = devm_ioremap_resource(dev, res);
if (IS_ERR(reg))
return PTR_ERR(reg);
mmc = mmc_alloc_host(sizeof(struct sh_mmcif_host), &pdev->dev);
mmc = mmc_alloc_host(sizeof(struct sh_mmcif_host), dev);
if (!mmc)
return -ENOMEM;
@ -1430,41 +1527,44 @@ static int sh_mmcif_probe(struct platform_device *pdev)
platform_set_drvdata(pdev, host);
pm_runtime_enable(&pdev->dev);
pm_runtime_enable(dev);
host->power = false;
host->hclk = devm_clk_get(&pdev->dev, NULL);
if (IS_ERR(host->hclk)) {
ret = PTR_ERR(host->hclk);
dev_err(&pdev->dev, "cannot get clock: %d\n", ret);
host->clk = devm_clk_get(dev, NULL);
if (IS_ERR(host->clk)) {
ret = PTR_ERR(host->clk);
dev_err(dev, "cannot get clock: %d\n", ret);
goto err_pm;
}
ret = sh_mmcif_clk_update(host);
ret = clk_prepare_enable(host->clk);
if (ret < 0)
goto err_pm;
ret = pm_runtime_resume(&pdev->dev);
sh_mmcif_clk_setup(host);
ret = pm_runtime_resume(dev);
if (ret < 0)
goto err_clk;
INIT_DELAYED_WORK(&host->timeout_work, mmcif_timeout_work);
INIT_DELAYED_WORK(&host->timeout_work, sh_mmcif_timeout_work);
sh_mmcif_sync_reset(host);
sh_mmcif_writel(host->addr, MMCIF_CE_INT_MASK, MASK_ALL);
name = irq[1] < 0 ? dev_name(&pdev->dev) : "sh_mmc:error";
ret = devm_request_threaded_irq(&pdev->dev, irq[0], sh_mmcif_intr,
name = irq[1] < 0 ? dev_name(dev) : "sh_mmc:error";
ret = devm_request_threaded_irq(dev, irq[0], sh_mmcif_intr,
sh_mmcif_irqt, 0, name, host);
if (ret) {
dev_err(&pdev->dev, "request_irq error (%s)\n", name);
dev_err(dev, "request_irq error (%s)\n", name);
goto err_clk;
}
if (irq[1] >= 0) {
ret = devm_request_threaded_irq(&pdev->dev, irq[1],
ret = devm_request_threaded_irq(dev, irq[1],
sh_mmcif_intr, sh_mmcif_irqt,
0, "sh_mmc:int", host);
if (ret) {
dev_err(&pdev->dev, "request_irq error (sh_mmc:int)\n");
dev_err(dev, "request_irq error (sh_mmc:int)\n");
goto err_clk;
}
}
@ -1481,19 +1581,19 @@ static int sh_mmcif_probe(struct platform_device *pdev)
if (ret < 0)
goto err_clk;
dev_pm_qos_expose_latency_limit(&pdev->dev, 100);
dev_pm_qos_expose_latency_limit(dev, 100);
dev_info(&pdev->dev, "Chip version 0x%04x, clock rate %luMHz\n",
dev_info(dev, "Chip version 0x%04x, clock rate %luMHz\n",
sh_mmcif_readl(host->addr, MMCIF_CE_VERSION) & 0xffff,
clk_get_rate(host->hclk) / 1000000UL);
clk_get_rate(host->clk) / 1000000UL);
clk_disable_unprepare(host->hclk);
clk_disable_unprepare(host->clk);
return ret;
err_clk:
clk_disable_unprepare(host->hclk);
clk_disable_unprepare(host->clk);
err_pm:
pm_runtime_disable(&pdev->dev);
pm_runtime_disable(dev);
err_host:
mmc_free_host(mmc);
return ret;
@ -1504,7 +1604,7 @@ static int sh_mmcif_remove(struct platform_device *pdev)
struct sh_mmcif_host *host = platform_get_drvdata(pdev);
host->dying = true;
clk_prepare_enable(host->hclk);
clk_prepare_enable(host->clk);
pm_runtime_get_sync(&pdev->dev);
dev_pm_qos_hide_latency_limit(&pdev->dev);
@ -1519,7 +1619,7 @@ static int sh_mmcif_remove(struct platform_device *pdev)
*/
cancel_delayed_work_sync(&host->timeout_work);
clk_disable_unprepare(host->hclk);
clk_disable_unprepare(host->clk);
mmc_free_host(host->mmc);
pm_runtime_put_sync(&pdev->dev);
pm_runtime_disable(&pdev->dev);
@ -1543,12 +1643,6 @@ static int sh_mmcif_resume(struct device *dev)
}
#endif
static const struct of_device_id mmcif_of_match[] = {
{ .compatible = "renesas,sh-mmcif" },
{ }
};
MODULE_DEVICE_TABLE(of, mmcif_of_match);
static const struct dev_pm_ops sh_mmcif_dev_pm_ops = {
SET_SYSTEM_SLEEP_PM_OPS(sh_mmcif_suspend, sh_mmcif_resume)
};
@ -1559,7 +1653,7 @@ static struct platform_driver sh_mmcif_driver = {
.driver = {
.name = DRIVER_NAME,
.pm = &sh_mmcif_dev_pm_ops,
.of_match_table = mmcif_of_match,
.of_match_table = sh_mmcif_of_match,
},
};

10
drivers/mmc/host/tmio_mmc.c
View File

@ -85,8 +85,10 @@ static int tmio_mmc_probe(struct platform_device *pdev)
}
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!res)
return -EINVAL;
if (!res) {
ret = -EINVAL;
goto cell_disable;
}
pdata->flags |= TMIO_MMC_HAVE_HIGH_REG;
@ -101,7 +103,8 @@ static int tmio_mmc_probe(struct platform_device *pdev)
if (ret)
goto host_free;
ret = request_irq(irq, tmio_mmc_irq, IRQF_TRIGGER_FALLING,
ret = devm_request_irq(&pdev->dev, irq, tmio_mmc_irq,
IRQF_TRIGGER_FALLING,
dev_name(&pdev->dev), host);
if (ret)
goto host_remove;
@ -129,7 +132,6 @@ static int tmio_mmc_remove(struct platform_device *pdev)
if (mmc) {
struct tmio_mmc_host *host = mmc_priv(mmc);
free_irq(platform_get_irq(pdev, 0), host);
tmio_mmc_host_remove(host);
if (cell->disable)
cell->disable(pdev);

5
drivers/mmc/host/tmio_mmc_pio.c
View File

@ -1108,7 +1108,8 @@ int tmio_mmc_host_probe(struct tmio_mmc_host *_host,
if (ret < 0)
goto host_free;
_host->ctl = ioremap(res_ctl->start, resource_size(res_ctl));
_host->ctl = devm_ioremap(&pdev->dev,
res_ctl->start, resource_size(res_ctl));
if (!_host->ctl) {
ret = -ENOMEM;
goto host_free;
@ -1230,8 +1231,6 @@ void tmio_mmc_host_remove(struct tmio_mmc_host *host)
pm_runtime_put_sync(&pdev->dev);
pm_runtime_disable(&pdev->dev);
iounmap(host->ctl);
}
EXPORT_SYMBOL(tmio_mmc_host_remove);

2
include/linux/mmc/card.h
View File

@ -97,6 +97,7 @@ struct mmc_ext_csd {
u8 raw_erased_mem_count; /* 181 */
u8 raw_ext_csd_structure; /* 194 */
u8 raw_card_type; /* 196 */
u8 raw_driver_strength; /* 197 */
u8 out_of_int_time; /* 198 */
u8 raw_pwr_cl_52_195; /* 200 */
u8 raw_pwr_cl_26_195; /* 201 */
@ -305,6 +306,7 @@ struct mmc_card {
unsigned int sd_bus_speed; /* Bus Speed Mode set for the card */
unsigned int mmc_avail_type; /* supported device type by both host and card */
unsigned int drive_strength; /* for UHS-I, HS200 or HS400 */
struct dentry *debugfs_root;
struct mmc_part part[MMC_NUM_PHY_PARTITION]; /* physical partitions */

1
include/linux/mmc/core.h
View File

@ -121,6 +121,7 @@ struct mmc_data {
struct mmc_request *mrq; /* associated request */
unsigned int sg_len; /* size of scatter list */
int sg_count; /* mapped sg entries */
struct scatterlist *sg; /* I/O scatter list */
s32 host_cookie; /* host private data */
};

6
include/linux/mmc/dw_mmc.h
View File

@ -226,12 +226,6 @@ struct dw_mci_dma_ops {
#define DW_MCI_QUIRK_HIGHSPEED BIT(2)
/* Unreliable card detection */
#define DW_MCI_QUIRK_BROKEN_CARD_DETECTION BIT(3)
/* No write protect */
#define DW_MCI_QUIRK_NO_WRITE_PROTECT BIT(4)
/* Slot level quirks */
/* This slot has no write protect */
#define DW_MCI_SLOT_QUIRK_NO_WRITE_PROTECT BIT(0)
struct dma_pdata;

28
include/linux/mmc/host.h
View File

@ -12,6 +12,7 @@
#include <linux/leds.h>
#include <linux/mutex.h>
#include <linux/timer.h>
#include <linux/sched.h>
#include <linux/device.h>
#include <linux/fault-inject.h>
@ -131,7 +132,9 @@ struct mmc_host_ops {
/* Prepare HS400 target operating frequency depending host driver */
int (*prepare_hs400_tuning)(struct mmc_host *host, struct mmc_ios *ios);
int (*select_drive_strength)(unsigned int max_dtr, int host_drv, int card_drv);
int (*select_drive_strength)(struct mmc_card *card,
unsigned int max_dtr, int host_drv,
int card_drv, int *drv_type);
void (*hw_reset)(struct mmc_host *host);
void (*card_event)(struct mmc_host *host);
@ -285,6 +288,7 @@ struct mmc_host {
MMC_CAP2_HS400_1_2V)
#define MMC_CAP2_HSX00_1_2V (MMC_CAP2_HS200_1_2V_SDR | MMC_CAP2_HS400_1_2V)
#define MMC_CAP2_SDIO_IRQ_NOTHREAD (1 << 17)
#define MMC_CAP2_NO_WRITE_PROTECT (1 << 18) /* No physical write protect pin, assume that card is always read-write */
mmc_pm_flag_t pm_caps; /* supported pm features */
@ -321,10 +325,18 @@ struct mmc_host {
#ifdef CONFIG_MMC_DEBUG
unsigned int removed:1; /* host is being removed */
#endif
unsigned int can_retune:1; /* re-tuning can be used */
unsigned int doing_retune:1; /* re-tuning in progress */
unsigned int retune_now:1; /* do re-tuning at next req */
int rescan_disable; /* disable card detection */
int rescan_entered; /* used with nonremovable devices */
int need_retune; /* re-tuning is needed */
int hold_retune; /* hold off re-tuning */
unsigned int retune_period; /* re-tuning period in secs */
struct timer_list retune_timer; /* for periodic re-tuning */
bool trigger_card_event; /* card_event necessary */
struct mmc_card *card; /* device attached to this host */
@ -513,4 +525,18 @@ static inline bool mmc_card_hs400(struct mmc_card *card)
return card->host->ios.timing == MMC_TIMING_MMC_HS400;
}
void mmc_retune_timer_stop(struct mmc_host *host);
static inline void mmc_retune_needed(struct mmc_host *host)
{
if (host->can_retune)
host->need_retune = 1;
}
static inline void mmc_retune_recheck(struct mmc_host *host)
{
if (host->hold_retune <= 1)
host->retune_now = 1;
}
#endif /* LINUX_MMC_HOST_H */

4
include/linux/mmc/mmc.h
View File

@ -302,6 +302,7 @@ struct _mmc_csd {
#define EXT_CSD_REV 192 /* RO */
#define EXT_CSD_STRUCTURE 194 /* RO */
#define EXT_CSD_CARD_TYPE 196 /* RO */
#define EXT_CSD_DRIVER_STRENGTH 197 /* RO */
#define EXT_CSD_OUT_OF_INTERRUPT_TIME 198 /* RO */
#define EXT_CSD_PART_SWITCH_TIME 199 /* RO */
#define EXT_CSD_PWR_CL_52_195 200 /* RO */
@ -390,6 +391,7 @@ struct _mmc_csd {
#define EXT_CSD_TIMING_HS 1 /* High speed */
#define EXT_CSD_TIMING_HS200 2 /* HS200 */
#define EXT_CSD_TIMING_HS400 3 /* HS400 */
#define EXT_CSD_DRV_STR_SHIFT 4 /* Driver Strength shift */
#define EXT_CSD_SEC_ER_EN BIT(0)
#define EXT_CSD_SEC_BD_BLK_EN BIT(2)
@ -441,4 +443,6 @@ struct _mmc_csd {
#define MMC_SWITCH_MODE_CLEAR_BITS 0x02 /* Clear bits which are 1 in value */
#define MMC_SWITCH_MODE_WRITE_BYTE 0x03 /* Set target to value */
#define mmc_driver_type_mask(n) (1 << (n))
#endif /* LINUX_MMC_MMC_H */

2
include/linux/mmc/sdhci-pci-data.h
View File

@ -15,4 +15,6 @@ struct sdhci_pci_data {
extern struct sdhci_pci_data *(*sdhci_pci_get_data)(struct pci_dev *pdev,
int slotno);
extern int sdhci_pci_spt_drive_strength;
#endif

1
include/linux/pci_ids.h
View File

@ -579,6 +579,7 @@
#define PCI_DEVICE_ID_AMD_HUDSON2_SATA_IDE 0x7800
#define PCI_DEVICE_ID_AMD_HUDSON2_SMBUS 0x780b
#define PCI_DEVICE_ID_AMD_HUDSON2_IDE 0x780c
#define PCI_DEVICE_ID_AMD_KERNCZ_SMBUS 0x790b
#define PCI_VENDOR_ID_TRIDENT 0x1023
#define PCI_DEVICE_ID_TRIDENT_4DWAVE_DX 0x2000