From 6cd281447f0110ac78abe945ea159134ec3a9986 Mon Sep 17 00:00:00 2001 From: nbd Date: Mon, 17 Sep 2012 11:17:29 +0000 Subject: ar71xx: add missing code for ar933x WMAC reset that was left out during the ar71xx->ath79 migration, should fix wifi stability issues on ar933x git-svn-id: svn://svn.openwrt.org/openwrt/trunk@33446 3c298f89-4303-0410-b956-a3cf2f4a3e73 --- .../650-MIPS-ath79-fix-ar933x-reset.patch | 31 ++++++++++++++++++++++ 1 file changed, 31 insertions(+) create mode 100644 target/linux/ar71xx/patches-3.3/650-MIPS-ath79-fix-ar933x-reset.patch (limited to 'target/linux/ar71xx') 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) -- cgit v1.2.3