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rsi: disable fw watchdog timer during reset 

Firmware's watchdog timer should be disabled as a part of reset
sequence. This change fixes a firmware hang issue observed during
stress tests.

Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: Siva Rebbagondla <siva.rebbagondla@redpinesignals.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
This commit is contained in:
Amitkumar Karwar 2018-04-10 20:34:11 +05:30 committed by Kalle Valo
parent 350fcdb834
commit 16d3bb7b2f
3 changed files with 9 additions and 0 deletions
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7
drivers/net/wireless/rsi/rsi_91x_usb.c
View File

@ -687,6 +687,13 @@ static int rsi_reset_card(struct rsi_hw *adapter)
*/
msleep(100);
if (rsi_usb_master_reg_write(adapter, SWBL_REGOUT,
RSI_FW_WDT_DISABLE_REQ,
RSI_COMMON_REG_SIZE) < 0) {
rsi_dbg(ERR_ZONE, "Disabling firmware watchdog timer failed\n");
goto fail;
}
ret = usb_ulp_read_write(adapter, RSI_WATCH_DOG_TIMER_1,
RSI_ULP_WRITE_2, 32);
if (ret < 0)

1
drivers/net/wireless/rsi/rsi_hal.h
View File

@ -115,6 +115,7 @@
#define FW_FLASH_OFFSET 0x820
#define LMAC_VER_OFFSET (FW_FLASH_OFFSET + 0x200)
#define MAX_DWORD_ALIGN_BYTES 64
#define RSI_COMMON_REG_SIZE 2
struct bl_header {
__le32 flags;

1
drivers/net/wireless/rsi/rsi_usb.h
View File

@ -26,6 +26,7 @@
#define RSI_USB_READY_MAGIC_NUM 0xab
#define FW_STATUS_REG 0x41050012
#define RSI_TA_HOLD_REG 0x22000844
#define RSI_FW_WDT_DISABLE_REQ 0x69
#define USB_VENDOR_REGISTER_READ 0x15
#define USB_VENDOR_REGISTER_WRITE 0x16