[U-Boot] [PATCH 2/2] mips: ath79: ar933x: Fix probe error for kernel driver ag71xx

[Wills Wang]

We need reset the Ethernet Switch analog part before operation,
or the build-in Ethernet PHY don't work, openwrt kernel driver
ag71xx occur the following error:

[    1.854519] libphy: ag71xx_mdio: probed
[    2.646539] ag71xx-mdio.1: unknown phy id 'ffff:ffff'
[    3.235778] ag71xx ag71xx.0: no PHY found with phy_mask=00000010

Signed-off-by: Wills Wang <wills.wang at live.com>
---

 arch/mips/mach-ath79/include/mach/ar71xx_regs.h | 1 +
 arch/mips/mach-ath79/reset.c                    | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/arch/mips/mach-ath79/include/mach/ar71xx_regs.h b/arch/mips/mach-ath79/include/mach/ar71xx_regs.h
index a8e51cb..dabcad0 100644
--- a/arch/mips/mach-ath79/include/mach/ar71xx_regs.h
+++ b/arch/mips/mach-ath79/include/mach/ar71xx_regs.h
@@ -660,6 +660,7 @@
 
 #define AR933X_RESET_GE1_MDIO				BIT(23)
 #define AR933X_RESET_GE0_MDIO				BIT(22)
+#define AR933X_RESET_ETH_SWITCH_ANALOG			BIT(14)
 #define AR933X_RESET_GE1_MAC				BIT(13)
 #define AR933X_RESET_WMAC				BIT(11)
 #define AR933X_RESET_GE0_MAC				BIT(9)
diff --git a/arch/mips/mach-ath79/reset.c b/arch/mips/mach-ath79/reset.c
index 188eccb..473f89d 100644
--- a/arch/mips/mach-ath79/reset.c
+++ b/arch/mips/mach-ath79/reset.c
@@ -81,7 +81,7 @@ static int eth_init_ar933x(void)
 					  MAP_NOCACHE);
 	const u32 mask = AR933X_RESET_GE0_MAC | AR933X_RESET_GE0_MDIO |
 			 AR933X_RESET_GE1_MAC | AR933X_RESET_GE1_MDIO |
-			 AR933X_RESET_ETH_SWITCH;
+			 AR933X_RESET_ETH_SWITCH | AR933X_RESET_ETH_SWITCH_ANALOG;
 
 	/* Clear MDIO slave EN bit. */
 	clrbits_be32(rregs + AR933X_RESET_REG_BOOTSTRAP, BIT(17));
-- 
1.9.1