From: Otavio Salvador <otavio@ossystems.com.br>
Date: Sun, 5 Aug 2012 09:05:33 +0000 (+0000)
Subject: mxs: Clarify why we poweroff in case of brownout in 5v conflict
X-Git-Tag: v2012.10-rc1~271
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=05c823bd327e39586067262c25148cb4888974ab;p=platform%2Fkernel%2Fu-boot.git

mxs: Clarify why we poweroff in case of brownout in 5v conflict

If VDDIO has a brownout, then the VDD5V_GT_VDDIO becomes unreliable
but this wasn't clear on code so a comment has been added to clarify
it.

Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
---

diff --git a/arch/arm/cpu/arm926ejs/mxs/spl_power_init.c b/arch/arm/cpu/arm926ejs/mxs/spl_power_init.c
index c341960..6dd3bfc 100644
--- a/arch/arm/cpu/arm926ejs/mxs/spl_power_init.c
+++ b/arch/arm/cpu/arm926ejs/mxs/spl_power_init.c
@@ -577,6 +577,10 @@ void mxs_handle_5v_conflict(void)
 		tmp = readl(&power_regs->hw_power_sts);
 
 		if (tmp & POWER_STS_VDDIO_BO) {
+			/*
+			 * VDDIO has a brownout, then the VDD5V_GT_VDDIO becomes
+			 * unreliable
+			 */
 			mxs_powerdown();
 			break;
 		}