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ath6kl: Lower SDIO pad drive strength for hw2.1.1 board

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Without this change, SDIO shuts down due to CRC error during
data communication to the firmware in some of the platform.
for example, scan request issued to the firmware doesn't
return scan completed events and cause the socket interface
to always return -16 (device busy).

SDIO pad drive strength should be reduced for hw2.1.1 board
to avoid such errors.

Signed-off-by: Raja Mani <rmani@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
This commit is contained in:
Raja Mani 2012-02-22 12:03:51 +05:30 committed by Kalle Valo
parent 13423c3119
commit 4480bb5936
1 changed files with 2 additions and 1 deletions
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3
drivers/net/wireless/ath/ath6kl/init.c
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@ -1406,7 +1406,8 @@ static int ath6kl_init_upload(struct ath6kl *ar)
return status;
/* WAR to avoid SDIO CRC err */
if (ar->version.target_ver == AR6003_HW_2_0_VERSION) {
if (ar->version.target_ver == AR6003_HW_2_0_VERSION ||
ar->version.target_ver == AR6003_HW_2_1_1_VERSION) {
ath6kl_err("temporary war to avoid sdio crc error\n");
param = 0x20;