From: Felix Fietkau <nbd@openwrt.org>
Date: Fri, 26 Dec 2014 12:36:38 +0000 (+0000)
Subject: ar71xx: add flush reset register writes, should fix restart issues (#17839)
X-Git-Tag: reboot~4878
X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=fa3cb9fa5c013672e5e9d6794ac7a2646920f9da;p=openwrt%2Fstaging%2Fnoltari.git

ar71xx: add flush reset register writes, should fix restart issues (#17839)

Signed-off-by: Felix Fietkau <nbd@openwrt.org>

SVN-Revision: 43777
---

diff --git a/target/linux/ar71xx/patches-3.14/728-MIPS-ath79-fix-restart.patch b/target/linux/ar71xx/patches-3.14/728-MIPS-ath79-fix-restart.patch
index 0027c59631..b8fc078ba0 100644
--- a/target/linux/ar71xx/patches-3.14/728-MIPS-ath79-fix-restart.patch
+++ b/target/linux/ar71xx/patches-3.14/728-MIPS-ath79-fix-restart.patch
@@ -8,3 +8,13 @@
  	ath79_device_reset_set(AR71XX_RESET_FULL_CHIP);
  	for (;;)
  		if (cpu_wait)
+--- a/arch/mips/include/asm/mach-ath79/ath79.h
++++ b/arch/mips/include/asm/mach-ath79/ath79.h
+@@ -144,6 +144,7 @@ static inline u32 ath79_pll_rr(unsigned 
+ static inline void ath79_reset_wr(unsigned reg, u32 val)
+ {
+ 	__raw_writel(val, ath79_reset_base + reg);
++	(void) __raw_readl(ath79_reset_base + reg); /* flush */
+ }
+ 
+ static inline u32 ath79_reset_rr(unsigned reg)