ar71xx: add missing code for ar933x WMAC reset that was left out during the ar71xx...

SVN-Revision: 33446

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 (file)
index 0000000..a81d6ea
--- /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)