mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-06 12:46:40 +07:00
19ad0715d8
PSM entries can fail (transmitting the corresponding null-func may not be heard by the AP.) Previously, this scenario was not detected, and out-of-sync between STA and AP could occur. Add retry implementation for the entries to recover from the situation. Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com> Reviewed-by: Luciano Coelho <luciano.coelho@nokia.com> Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
558 lines
14 KiB
C
558 lines
14 KiB
C
/*
|
|
* This file is part of wl1271
|
|
*
|
|
* Copyright (C) 2008-2009 Nokia Corporation
|
|
*
|
|
* Contact: Luciano Coelho <luciano.coelho@nokia.com>
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public License
|
|
* version 2 as published by the Free Software Foundation.
|
|
*
|
|
* This program is distributed in the hope that it will be useful, but
|
|
* WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
|
|
* 02110-1301 USA
|
|
*
|
|
*/
|
|
|
|
#include <linux/gpio.h>
|
|
|
|
#include "wl1271_acx.h"
|
|
#include "wl1271_reg.h"
|
|
#include "wl1271_boot.h"
|
|
#include "wl1271_spi.h"
|
|
#include "wl1271_event.h"
|
|
|
|
static struct wl1271_partition_set part_table[PART_TABLE_LEN] = {
|
|
[PART_DOWN] = {
|
|
.mem = {
|
|
.start = 0x00000000,
|
|
.size = 0x000177c0
|
|
},
|
|
.reg = {
|
|
.start = REGISTERS_BASE,
|
|
.size = 0x00008800
|
|
},
|
|
.mem2 = {
|
|
.start = 0x00000000,
|
|
.size = 0x00000000
|
|
},
|
|
.mem3 = {
|
|
.start = 0x00000000,
|
|
.size = 0x00000000
|
|
},
|
|
},
|
|
|
|
[PART_WORK] = {
|
|
.mem = {
|
|
.start = 0x00040000,
|
|
.size = 0x00014fc0
|
|
},
|
|
.reg = {
|
|
.start = REGISTERS_BASE,
|
|
.size = 0x0000a000
|
|
},
|
|
.mem2 = {
|
|
.start = 0x003004f8,
|
|
.size = 0x00000004
|
|
},
|
|
.mem3 = {
|
|
.start = 0x00040404,
|
|
.size = 0x00000000
|
|
},
|
|
},
|
|
|
|
[PART_DRPW] = {
|
|
.mem = {
|
|
.start = 0x00040000,
|
|
.size = 0x00014fc0
|
|
},
|
|
.reg = {
|
|
.start = DRPW_BASE,
|
|
.size = 0x00006000
|
|
},
|
|
.mem2 = {
|
|
.start = 0x00000000,
|
|
.size = 0x00000000
|
|
},
|
|
.mem3 = {
|
|
.start = 0x00000000,
|
|
.size = 0x00000000
|
|
}
|
|
}
|
|
};
|
|
|
|
static void wl1271_boot_set_ecpu_ctrl(struct wl1271 *wl, u32 flag)
|
|
{
|
|
u32 cpu_ctrl;
|
|
|
|
/* 10.5.0 run the firmware (I) */
|
|
cpu_ctrl = wl1271_spi_read32(wl, ACX_REG_ECPU_CONTROL);
|
|
|
|
/* 10.5.1 run the firmware (II) */
|
|
cpu_ctrl |= flag;
|
|
wl1271_spi_write32(wl, ACX_REG_ECPU_CONTROL, cpu_ctrl);
|
|
}
|
|
|
|
static void wl1271_boot_fw_version(struct wl1271 *wl)
|
|
{
|
|
struct wl1271_static_data static_data;
|
|
|
|
wl1271_spi_read(wl, wl->cmd_box_addr,
|
|
&static_data, sizeof(static_data), false);
|
|
|
|
strncpy(wl->chip.fw_ver, static_data.fw_version,
|
|
sizeof(wl->chip.fw_ver));
|
|
|
|
/* make sure the string is NULL-terminated */
|
|
wl->chip.fw_ver[sizeof(wl->chip.fw_ver) - 1] = '\0';
|
|
}
|
|
|
|
static int wl1271_boot_upload_firmware_chunk(struct wl1271 *wl, void *buf,
|
|
size_t fw_data_len, u32 dest)
|
|
{
|
|
struct wl1271_partition_set partition;
|
|
int addr, chunk_num, partition_limit;
|
|
u8 *p, *chunk;
|
|
|
|
/* whal_FwCtrl_LoadFwImageSm() */
|
|
|
|
wl1271_debug(DEBUG_BOOT, "starting firmware upload");
|
|
|
|
wl1271_debug(DEBUG_BOOT, "fw_data_len %zd chunk_size %d",
|
|
fw_data_len, CHUNK_SIZE);
|
|
|
|
if ((fw_data_len % 4) != 0) {
|
|
wl1271_error("firmware length not multiple of four");
|
|
return -EIO;
|
|
}
|
|
|
|
chunk = kmalloc(CHUNK_SIZE, GFP_KERNEL);
|
|
if (!chunk) {
|
|
wl1271_error("allocation for firmware upload chunk failed");
|
|
return -ENOMEM;
|
|
}
|
|
|
|
memcpy(&partition, &part_table[PART_DOWN], sizeof(partition));
|
|
partition.mem.start = dest;
|
|
wl1271_set_partition(wl, &partition);
|
|
|
|
/* 10.1 set partition limit and chunk num */
|
|
chunk_num = 0;
|
|
partition_limit = part_table[PART_DOWN].mem.size;
|
|
|
|
while (chunk_num < fw_data_len / CHUNK_SIZE) {
|
|
/* 10.2 update partition, if needed */
|
|
addr = dest + (chunk_num + 2) * CHUNK_SIZE;
|
|
if (addr > partition_limit) {
|
|
addr = dest + chunk_num * CHUNK_SIZE;
|
|
partition_limit = chunk_num * CHUNK_SIZE +
|
|
part_table[PART_DOWN].mem.size;
|
|
partition.mem.start = addr;
|
|
wl1271_set_partition(wl, &partition);
|
|
}
|
|
|
|
/* 10.3 upload the chunk */
|
|
addr = dest + chunk_num * CHUNK_SIZE;
|
|
p = buf + chunk_num * CHUNK_SIZE;
|
|
memcpy(chunk, p, CHUNK_SIZE);
|
|
wl1271_debug(DEBUG_BOOT, "uploading fw chunk 0x%p to 0x%x",
|
|
p, addr);
|
|
wl1271_spi_write(wl, addr, chunk, CHUNK_SIZE, false);
|
|
|
|
chunk_num++;
|
|
}
|
|
|
|
/* 10.4 upload the last chunk */
|
|
addr = dest + chunk_num * CHUNK_SIZE;
|
|
p = buf + chunk_num * CHUNK_SIZE;
|
|
memcpy(chunk, p, fw_data_len % CHUNK_SIZE);
|
|
wl1271_debug(DEBUG_BOOT, "uploading fw last chunk (%zd B) 0x%p to 0x%x",
|
|
fw_data_len % CHUNK_SIZE, p, addr);
|
|
wl1271_spi_write(wl, addr, chunk, fw_data_len % CHUNK_SIZE, false);
|
|
|
|
kfree(chunk);
|
|
return 0;
|
|
}
|
|
|
|
static int wl1271_boot_upload_firmware(struct wl1271 *wl)
|
|
{
|
|
u32 chunks, addr, len;
|
|
int ret = 0;
|
|
u8 *fw;
|
|
|
|
fw = wl->fw;
|
|
chunks = be32_to_cpup((__be32 *) fw);
|
|
fw += sizeof(u32);
|
|
|
|
wl1271_debug(DEBUG_BOOT, "firmware chunks to be uploaded: %u", chunks);
|
|
|
|
while (chunks--) {
|
|
addr = be32_to_cpup((__be32 *) fw);
|
|
fw += sizeof(u32);
|
|
len = be32_to_cpup((__be32 *) fw);
|
|
fw += sizeof(u32);
|
|
|
|
if (len > 300000) {
|
|
wl1271_info("firmware chunk too long: %u", len);
|
|
return -EINVAL;
|
|
}
|
|
wl1271_debug(DEBUG_BOOT, "chunk %d addr 0x%x len %u",
|
|
chunks, addr, len);
|
|
ret = wl1271_boot_upload_firmware_chunk(wl, fw, len, addr);
|
|
if (ret != 0)
|
|
break;
|
|
fw += len;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int wl1271_boot_upload_nvs(struct wl1271 *wl)
|
|
{
|
|
size_t nvs_len, burst_len;
|
|
int i;
|
|
u32 dest_addr, val;
|
|
u8 *nvs_ptr, *nvs, *nvs_aligned;
|
|
|
|
nvs = wl->nvs;
|
|
if (nvs == NULL)
|
|
return -ENODEV;
|
|
|
|
nvs_ptr = nvs;
|
|
|
|
nvs_len = wl->nvs_len;
|
|
|
|
/* Update the device MAC address into the nvs */
|
|
nvs[11] = wl->mac_addr[0];
|
|
nvs[10] = wl->mac_addr[1];
|
|
nvs[6] = wl->mac_addr[2];
|
|
nvs[5] = wl->mac_addr[3];
|
|
nvs[4] = wl->mac_addr[4];
|
|
nvs[3] = wl->mac_addr[5];
|
|
|
|
/*
|
|
* Layout before the actual NVS tables:
|
|
* 1 byte : burst length.
|
|
* 2 bytes: destination address.
|
|
* n bytes: data to burst copy.
|
|
*
|
|
* This is ended by a 0 length, then the NVS tables.
|
|
*/
|
|
|
|
/* FIXME: Do we need to check here whether the LSB is 1? */
|
|
while (nvs_ptr[0]) {
|
|
burst_len = nvs_ptr[0];
|
|
dest_addr = (nvs_ptr[1] & 0xfe) | ((u32)(nvs_ptr[2] << 8));
|
|
|
|
/* FIXME: Due to our new wl1271_translate_reg_addr function,
|
|
we need to add the REGISTER_BASE to the destination */
|
|
dest_addr += REGISTERS_BASE;
|
|
|
|
/* We move our pointer to the data */
|
|
nvs_ptr += 3;
|
|
|
|
for (i = 0; i < burst_len; i++) {
|
|
val = (nvs_ptr[0] | (nvs_ptr[1] << 8)
|
|
| (nvs_ptr[2] << 16) | (nvs_ptr[3] << 24));
|
|
|
|
wl1271_debug(DEBUG_BOOT,
|
|
"nvs burst write 0x%x: 0x%x",
|
|
dest_addr, val);
|
|
wl1271_spi_write32(wl, dest_addr, val);
|
|
|
|
nvs_ptr += 4;
|
|
dest_addr += 4;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* We've reached the first zero length, the first NVS table
|
|
* is 7 bytes further.
|
|
*/
|
|
nvs_ptr += 7;
|
|
nvs_len -= nvs_ptr - nvs;
|
|
nvs_len = ALIGN(nvs_len, 4);
|
|
|
|
/* FIXME: The driver sets the partition here, but this is not needed,
|
|
since it sets to the same one as currently in use */
|
|
/* Now we must set the partition correctly */
|
|
wl1271_set_partition(wl, &part_table[PART_WORK]);
|
|
|
|
/* Copy the NVS tables to a new block to ensure alignment */
|
|
nvs_aligned = kmemdup(nvs_ptr, nvs_len, GFP_KERNEL);
|
|
if (!nvs_aligned)
|
|
return -ENOMEM;
|
|
|
|
/* And finally we upload the NVS tables */
|
|
/* FIXME: In wl1271, we upload everything at once.
|
|
No endianness handling needed here?! The ref driver doesn't do
|
|
anything about it at this point */
|
|
wl1271_spi_write(wl, CMD_MBOX_ADDRESS, nvs_aligned, nvs_len, false);
|
|
|
|
kfree(nvs_aligned);
|
|
return 0;
|
|
}
|
|
|
|
static void wl1271_boot_enable_interrupts(struct wl1271 *wl)
|
|
{
|
|
enable_irq(wl->irq);
|
|
wl1271_spi_write32(wl, ACX_REG_INTERRUPT_MASK,
|
|
WL1271_ACX_INTR_ALL & ~(WL1271_INTR_MASK));
|
|
wl1271_spi_write32(wl, HI_CFG, HI_CFG_DEF_VAL);
|
|
}
|
|
|
|
static int wl1271_boot_soft_reset(struct wl1271 *wl)
|
|
{
|
|
unsigned long timeout;
|
|
u32 boot_data;
|
|
|
|
/* perform soft reset */
|
|
wl1271_spi_write32(wl, ACX_REG_SLV_SOFT_RESET,
|
|
ACX_SLV_SOFT_RESET_BIT);
|
|
|
|
/* SOFT_RESET is self clearing */
|
|
timeout = jiffies + usecs_to_jiffies(SOFT_RESET_MAX_TIME);
|
|
while (1) {
|
|
boot_data = wl1271_spi_read32(wl, ACX_REG_SLV_SOFT_RESET);
|
|
wl1271_debug(DEBUG_BOOT, "soft reset bootdata 0x%x", boot_data);
|
|
if ((boot_data & ACX_SLV_SOFT_RESET_BIT) == 0)
|
|
break;
|
|
|
|
if (time_after(jiffies, timeout)) {
|
|
/* 1.2 check pWhalBus->uSelfClearTime if the
|
|
* timeout was reached */
|
|
wl1271_error("soft reset timeout");
|
|
return -1;
|
|
}
|
|
|
|
udelay(SOFT_RESET_STALL_TIME);
|
|
}
|
|
|
|
/* disable Rx/Tx */
|
|
wl1271_spi_write32(wl, ENABLE, 0x0);
|
|
|
|
/* disable auto calibration on start*/
|
|
wl1271_spi_write32(wl, SPARE_A2, 0xffff);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int wl1271_boot_run_firmware(struct wl1271 *wl)
|
|
{
|
|
int loop, ret;
|
|
u32 chip_id, interrupt;
|
|
|
|
wl1271_boot_set_ecpu_ctrl(wl, ECPU_CONTROL_HALT);
|
|
|
|
chip_id = wl1271_spi_read32(wl, CHIP_ID_B);
|
|
|
|
wl1271_debug(DEBUG_BOOT, "chip id after firmware boot: 0x%x", chip_id);
|
|
|
|
if (chip_id != wl->chip.id) {
|
|
wl1271_error("chip id doesn't match after firmware boot");
|
|
return -EIO;
|
|
}
|
|
|
|
/* wait for init to complete */
|
|
loop = 0;
|
|
while (loop++ < INIT_LOOP) {
|
|
udelay(INIT_LOOP_DELAY);
|
|
interrupt = wl1271_spi_read32(wl,
|
|
ACX_REG_INTERRUPT_NO_CLEAR);
|
|
|
|
if (interrupt == 0xffffffff) {
|
|
wl1271_error("error reading hardware complete "
|
|
"init indication");
|
|
return -EIO;
|
|
}
|
|
/* check that ACX_INTR_INIT_COMPLETE is enabled */
|
|
else if (interrupt & WL1271_ACX_INTR_INIT_COMPLETE) {
|
|
wl1271_spi_write32(wl, ACX_REG_INTERRUPT_ACK,
|
|
WL1271_ACX_INTR_INIT_COMPLETE);
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (loop > INIT_LOOP) {
|
|
wl1271_error("timeout waiting for the hardware to "
|
|
"complete initialization");
|
|
return -EIO;
|
|
}
|
|
|
|
/* get hardware config command mail box */
|
|
wl->cmd_box_addr = wl1271_spi_read32(wl, REG_COMMAND_MAILBOX_PTR);
|
|
|
|
/* get hardware config event mail box */
|
|
wl->event_box_addr = wl1271_spi_read32(wl, REG_EVENT_MAILBOX_PTR);
|
|
|
|
/* set the working partition to its "running" mode offset */
|
|
wl1271_set_partition(wl, &part_table[PART_WORK]);
|
|
|
|
wl1271_debug(DEBUG_MAILBOX, "cmd_box_addr 0x%x event_box_addr 0x%x",
|
|
wl->cmd_box_addr, wl->event_box_addr);
|
|
|
|
wl1271_boot_fw_version(wl);
|
|
|
|
/*
|
|
* in case of full asynchronous mode the firmware event must be
|
|
* ready to receive event from the command mailbox
|
|
*/
|
|
|
|
/* unmask required mbox events */
|
|
wl->event_mask = BSS_LOSE_EVENT_ID |
|
|
SCAN_COMPLETE_EVENT_ID |
|
|
PS_REPORT_EVENT_ID;
|
|
|
|
ret = wl1271_event_unmask(wl);
|
|
if (ret < 0) {
|
|
wl1271_error("EVENT mask setting failed");
|
|
return ret;
|
|
}
|
|
|
|
wl1271_event_mbox_config(wl);
|
|
|
|
/* firmware startup completed */
|
|
return 0;
|
|
}
|
|
|
|
static int wl1271_boot_write_irq_polarity(struct wl1271 *wl)
|
|
{
|
|
u32 polarity;
|
|
|
|
polarity = wl1271_top_reg_read(wl, OCP_REG_POLARITY);
|
|
|
|
/* We use HIGH polarity, so unset the LOW bit */
|
|
polarity &= ~POLARITY_LOW;
|
|
wl1271_top_reg_write(wl, OCP_REG_POLARITY, polarity);
|
|
|
|
return 0;
|
|
}
|
|
|
|
int wl1271_boot(struct wl1271 *wl)
|
|
{
|
|
int ret = 0;
|
|
u32 tmp, clk, pause;
|
|
|
|
if (REF_CLOCK == 0 || REF_CLOCK == 2 || REF_CLOCK == 4)
|
|
/* ref clk: 19.2/38.4/38.4-XTAL */
|
|
clk = 0x3;
|
|
else if (REF_CLOCK == 1 || REF_CLOCK == 3)
|
|
/* ref clk: 26/52 */
|
|
clk = 0x5;
|
|
|
|
if (REF_CLOCK != 0) {
|
|
u16 val;
|
|
/* Set clock type */
|
|
val = wl1271_top_reg_read(wl, OCP_REG_CLK_TYPE);
|
|
val &= FREF_CLK_TYPE_BITS;
|
|
val |= CLK_REQ_PRCM;
|
|
wl1271_top_reg_write(wl, OCP_REG_CLK_TYPE, val);
|
|
} else {
|
|
u16 val;
|
|
/* Set clock polarity */
|
|
val = wl1271_top_reg_read(wl, OCP_REG_CLK_POLARITY);
|
|
val &= FREF_CLK_POLARITY_BITS;
|
|
val |= CLK_REQ_OUTN_SEL;
|
|
wl1271_top_reg_write(wl, OCP_REG_CLK_POLARITY, val);
|
|
}
|
|
|
|
wl1271_spi_write32(wl, PLL_PARAMETERS, clk);
|
|
|
|
pause = wl1271_spi_read32(wl, PLL_PARAMETERS);
|
|
|
|
wl1271_debug(DEBUG_BOOT, "pause1 0x%x", pause);
|
|
|
|
pause &= ~(WU_COUNTER_PAUSE_VAL); /* FIXME: This should probably be
|
|
* WU_COUNTER_PAUSE_VAL instead of
|
|
* 0x3ff (magic number ). How does
|
|
* this work?! */
|
|
pause |= WU_COUNTER_PAUSE_VAL;
|
|
wl1271_spi_write32(wl, WU_COUNTER_PAUSE, pause);
|
|
|
|
/* Continue the ELP wake up sequence */
|
|
wl1271_spi_write32(wl, WELP_ARM_COMMAND, WELP_ARM_COMMAND_VAL);
|
|
udelay(500);
|
|
|
|
wl1271_set_partition(wl, &part_table[PART_DRPW]);
|
|
|
|
/* Read-modify-write DRPW_SCRATCH_START register (see next state)
|
|
to be used by DRPw FW. The RTRIM value will be added by the FW
|
|
before taking DRPw out of reset */
|
|
|
|
wl1271_debug(DEBUG_BOOT, "DRPW_SCRATCH_START %08x", DRPW_SCRATCH_START);
|
|
clk = wl1271_spi_read32(wl, DRPW_SCRATCH_START);
|
|
|
|
wl1271_debug(DEBUG_BOOT, "clk2 0x%x", clk);
|
|
|
|
/* 2 */
|
|
clk |= (REF_CLOCK << 1) << 4;
|
|
wl1271_spi_write32(wl, DRPW_SCRATCH_START, clk);
|
|
|
|
wl1271_set_partition(wl, &part_table[PART_WORK]);
|
|
|
|
/* Disable interrupts */
|
|
wl1271_spi_write32(wl, ACX_REG_INTERRUPT_MASK, WL1271_ACX_INTR_ALL);
|
|
|
|
ret = wl1271_boot_soft_reset(wl);
|
|
if (ret < 0)
|
|
goto out;
|
|
|
|
/* 2. start processing NVS file */
|
|
ret = wl1271_boot_upload_nvs(wl);
|
|
if (ret < 0)
|
|
goto out;
|
|
|
|
/* write firmware's last address (ie. it's length) to
|
|
* ACX_EEPROMLESS_IND_REG */
|
|
wl1271_debug(DEBUG_BOOT, "ACX_EEPROMLESS_IND_REG");
|
|
|
|
wl1271_spi_write32(wl, ACX_EEPROMLESS_IND_REG,
|
|
ACX_EEPROMLESS_IND_REG);
|
|
|
|
tmp = wl1271_spi_read32(wl, CHIP_ID_B);
|
|
|
|
wl1271_debug(DEBUG_BOOT, "chip id 0x%x", tmp);
|
|
|
|
/* 6. read the EEPROM parameters */
|
|
tmp = wl1271_spi_read32(wl, SCR_PAD2);
|
|
|
|
ret = wl1271_boot_write_irq_polarity(wl);
|
|
if (ret < 0)
|
|
goto out;
|
|
|
|
/* FIXME: Need to check whether this is really what we want */
|
|
wl1271_spi_write32(wl, ACX_REG_INTERRUPT_MASK,
|
|
WL1271_ACX_ALL_EVENTS_VECTOR);
|
|
|
|
/* WL1271: The reference driver skips steps 7 to 10 (jumps directly
|
|
* to upload_fw) */
|
|
|
|
ret = wl1271_boot_upload_firmware(wl);
|
|
if (ret < 0)
|
|
goto out;
|
|
|
|
/* 10.5 start firmware */
|
|
ret = wl1271_boot_run_firmware(wl);
|
|
if (ret < 0)
|
|
goto out;
|
|
|
|
/* Enable firmware interrupts now */
|
|
wl1271_boot_enable_interrupts(wl);
|
|
|
|
/* set the wl1271 default filters */
|
|
wl->rx_config = WL1271_DEFAULT_RX_CONFIG;
|
|
wl->rx_filter = WL1271_DEFAULT_RX_FILTER;
|
|
|
|
wl1271_event_mbox_config(wl);
|
|
|
|
out:
|
|
return ret;
|
|
}
|