From: Kuninori Morimoto <morimoto.kuninori@renesas.com>
Date: Thu, 24 Dec 2009 08:31:44 +0000 (+0000)
Subject: sh: ms7724: Correct sh-eth EEPROM polling timeout.
X-Git-Tag: upstream/snapshot3+hdmi~15804^2~2
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=c718aff2e673a4f42de2a8b9f43bbfd700ce9544;p=platform%2Fadaptation%2Frenesas_rcar%2Frenesas_kernel.git

sh: ms7724: Correct sh-eth EEPROM polling timeout.

This converts the cpu_relax() to a udelay(1), which fixes up issues with
the EEPROM polling occasionally timing out.

Signed-off-by: Kuninori Morimoto <morimoto.kuninori@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---

diff --git a/arch/sh/boards/mach-se/7724/setup.c b/arch/sh/boards/mach-se/7724/setup.c
index 5d0f70b..858ecb2 100644
--- a/arch/sh/boards/mach-se/7724/setup.c
+++ b/arch/sh/boards/mach-se/7724/setup.c
@@ -533,7 +533,7 @@ static int __init sh_eth_is_eeprom_ready(void)
 	while (t--) {
 		if (!ctrl_inw(EEPROM_STAT))
 			return 1;
-		cpu_relax();
+		udelay(1);
 	}
 
 	printk(KERN_ERR "ms7724se can not access to eeprom\n");