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MIPS: Malta: Probe pflash via DT

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Add the DT nodes required to probe the CFI compatible parallel monitor
flash found on the Malta development board, and remove the platform
code that was previously doing it. Delete the now-empty malta-platform.c
file. Adjust the Malta defconfigs that enable MTD & the pflash/CFI
driver to enable CONFIG_MTD_PHYSMAP_OF rather than CONFIG_MTD_PHYSMAP in
order to preserve their behaviour.

Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Cc: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: linux-mips@linux-mips.org
Cc: devicetree@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/14278/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This commit is contained in:
Paul Burton 2016-09-19 22:21:27 +01:00 committed by Ralf Baechle
parent 0a46ffa360
commit 97af8e1cb3
6 changed files with 35 additions and 48 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

31
arch/mips/boot/dts/mti/malta.dts
View File

@ -50,6 +50,37 @@ i8259: interrupt-controller@20 {
interrupts = <GIC_SHARED 3 IRQ_TYPE_LEVEL_HIGH>;
};
flash@1e000000 {
compatible = "intel,dt28f160", "cfi-flash";
reg = <0x1e000000 0x400000>;
bank-width = <4>;
#address-cells = <1>;
#size-cells = <1>;
partitions {
compatible = "fixed-partitions";
#address-cells = <1>;
#size-cells = <1>;
yamon@0 {
label = "YAMON";
reg = <0x0 0x100000>;
read-only;
};
user-fs@100000 {
label = "User FS";
reg = <0x100000 0x2e0000>;
};
board-config@3e0000 {
label = "Board Config";
reg = <0x3e0000 0x20000>;
read-only;
};
};
};
isa {
compatible = "isa";
#address-cells = <2>;

2
arch/mips/configs/malta_defconfig
View File

@ -230,7 +230,7 @@ CONFIG_MTD_CFI=y
CONFIG_MTD_CFI_INTELEXT=y
CONFIG_MTD_CFI_AMDSTD=y
CONFIG_MTD_CFI_STAA=y
CONFIG_MTD_PHYSMAP=y
CONFIG_MTD_PHYSMAP_OF=y
CONFIG_MTD_UBI=m
CONFIG_MTD_UBI_GLUEBI=m
CONFIG_BLK_DEV_FD=m

2
arch/mips/configs/malta_kvm_defconfig
View File

@ -235,7 +235,7 @@ CONFIG_MTD_CFI=y
CONFIG_MTD_CFI_INTELEXT=y
CONFIG_MTD_CFI_AMDSTD=y
CONFIG_MTD_CFI_STAA=y
CONFIG_MTD_PHYSMAP=y
CONFIG_MTD_PHYSMAP_OF=y
CONFIG_MTD_UBI=m
CONFIG_MTD_UBI_GLUEBI=m
CONFIG_BLK_DEV_FD=m

2
arch/mips/configs/malta_kvm_guest_defconfig
View File

@ -234,7 +234,7 @@ CONFIG_MTD_CFI=y
CONFIG_MTD_CFI_INTELEXT=y
CONFIG_MTD_CFI_AMDSTD=y
CONFIG_MTD_CFI_STAA=y
CONFIG_MTD_PHYSMAP=y
CONFIG_MTD_PHYSMAP_OF=y
CONFIG_MTD_UBI=m
CONFIG_MTD_UBI_GLUEBI=m
CONFIG_BLK_DEV_FD=m

2
arch/mips/configs/maltaup_xpa_defconfig
View File

@ -231,7 +231,7 @@ CONFIG_MTD_CFI=y
CONFIG_MTD_CFI_INTELEXT=y
CONFIG_MTD_CFI_AMDSTD=y
CONFIG_MTD_CFI_STAA=y
CONFIG_MTD_PHYSMAP=y
CONFIG_MTD_PHYSMAP_OF=y
CONFIG_MTD_UBI=m
CONFIG_MTD_UBI_GLUEBI=m
CONFIG_BLK_DEV_FD=m

44
arch/mips/mti-malta/malta-platform.c
View File

@ -25,11 +25,8 @@
#include <linux/serial_8250.h>
#include <linux/module.h>
#include <linux/irq.h>
#include <linux/mtd/partitions.h>
#include <linux/mtd/physmap.h>
#include <linux/platform_device.h>
#include <asm/mips-boards/maltaint.h>
#include <mtd/mtd-abi.h>
#define SMC_PORT(base, int) \
{ \
@ -67,49 +64,8 @@ static struct platform_device malta_uart8250_device = {
},
};
static struct mtd_partition malta_mtd_partitions[] = {
{
.name = "YAMON",
.offset = 0x0,
.size = 0x100000,
.mask_flags = MTD_WRITEABLE
}, {
.name = "User FS",
.offset = 0x100000,
.size = 0x2e0000
}, {
.name = "Board Config",
.offset = 0x3e0000,
.size = 0x020000,
.mask_flags = MTD_WRITEABLE
}
};
static struct physmap_flash_data malta_flash_data = {
.width = 4,
.nr_parts = ARRAY_SIZE(malta_mtd_partitions),
.parts = malta_mtd_partitions
};
static struct resource malta_flash_resource = {
.start = 0x1e000000,
.end = 0x1e3fffff,
.flags = IORESOURCE_MEM
};
static struct platform_device malta_flash_device = {
.name = "physmap-flash",
.id = 0,
.dev = {
.platform_data = &malta_flash_data,
},
.num_resources = 1,
.resource = &malta_flash_resource,
};
static struct platform_device *malta_devices[] __initdata = {
&malta_uart8250_device,
&malta_flash_device,
};
static int __init malta_add_devices(void)