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authorRaja Mani <rmani@qca.qualcomm.com>2012-02-22 12:03:51 +0530
committerKalle Valo <kvalo@qca.qualcomm.com>2012-02-28 10:44:03 +0200
commit4480bb59361b317d9a0a7b8cc6daafae14570f49 (patch)
tree3cf9d0ea84c0b2438f463e0b627631c35ac6eca5 /drivers/net/wireless/ath/ath6kl/init.c
parent13423c31195efb1a1ac319294f5a0148a13433e6 (diff)
downloadlinux-4480bb59361b317d9a0a7b8cc6daafae14570f49.tar.bz2
ath6kl: Lower SDIO pad drive strength for hw2.1.1 board
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>
Diffstat (limited to 'drivers/net/wireless/ath/ath6kl/init.c')
-rw-r--r--drivers/net/wireless/ath/ath6kl/init.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/net/wireless/ath/ath6kl/init.c b/drivers/net/wireless/ath/ath6kl/init.c
index 6fed6280174f..f3b5502362d8 100644
--- a/drivers/net/wireless/ath/ath6kl/init.c
+++ b/drivers/net/wireless/ath/ath6kl/init.c
@@ -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;