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authorFelix Fietkau <nbd@openwrt.org>2012-09-17 11:17:29 +0000
committerFelix Fietkau <nbd@openwrt.org>2012-09-17 11:17:29 +0000
commite8893fdf7a151854f0edcee6863bd7e81e887705 (patch)
tree101d8e8a6522394929703a0e745794b49b9b32d8
parentb086475e1e325a545a78ea5e136c4d97beb3445f (diff)
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ar71xx: add missing code for ar933x WMAC reset that was left out during the ar71xx->ath79 migration, should fix wifi stability issues on ar933x
SVN-Revision: 33446
-rw-r--r--target/linux/ar71xx/patches-3.3/650-MIPS-ath79-fix-ar933x-reset.patch31
1 files changed, 31 insertions, 0 deletions
diff --git a/target/linux/ar71xx/patches-3.3/650-MIPS-ath79-fix-ar933x-reset.patch b/target/linux/ar71xx/patches-3.3/650-MIPS-ath79-fix-ar933x-reset.patch
new file mode 100644
index 0000000000..a81d6ea6e0
--- /dev/null
+++ b/target/linux/ar71xx/patches-3.3/650-MIPS-ath79-fix-ar933x-reset.patch
@@ -0,0 +1,31 @@
+--- a/arch/mips/ath79/dev-wmac.c
++++ b/arch/mips/ath79/dev-wmac.c
+@@ -67,10 +67,27 @@ static void __init ar913x_wmac_setup(voi
+
+ static int ar933x_wmac_reset(void)
+ {
++ int retries = 20;
++
+ ath79_device_reset_set(AR933X_RESET_WMAC);
+ ath79_device_reset_clear(AR933X_RESET_WMAC);
+
+- return 0;
++ while (1) {
++ u32 bootstrap;
++
++ bootstrap = ath79_reset_rr(AR933X_RESET_REG_BOOTSTRAP);
++ if ((bootstrap & AR933X_BOOTSTRAP_EEPBUSY) == 0)
++ return 0;
++
++ if (retries-- == 0)
++ break;
++
++ udelay(10000);
++ retries++;
++ }
++
++ pr_err("ar933x: WMAC reset timed out");
++ return -ETIMEDOUT;
+ }
+
+ static int ar933x_r1_get_wmac_revision(void)