openwrt/target/linux/ar71xx/patches-4.4/200-MIPS-ath79-fix-ar933x-wmac-reset.patch
Kevin Darbyshire-Bryant 8960f2b80c
ar71xx: fixup ar71xx/ar933x_wmac_reset: remove indefinite wait for wmac reset
Fix malformed patch introduced by 296312fca1

Signed-off-by: Kevin Darbyshire-Bryant <kevin@darbyshire-bryant.me.uk>
2017-06-11 17:12:45 +02:00

31 lines
631 B
Diff

--- a/arch/mips/ath79/dev-wmac.c
+++ b/arch/mips/ath79/dev-wmac.c
@@ -62,10 +62,26 @@ 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);
+ }
+
+ pr_err("ar933x: WMAC reset timed out");
+ return -ETIMEDOUT;
}
static int ar933x_r1_get_wmac_revision(void)