From 05c823bd327e39586067262c25148cb4888974ab Mon Sep 17 00:00:00 2001 From: Otavio Salvador Date: Sun, 5 Aug 2012 09:05:33 +0000 Subject: 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 --- arch/arm/cpu/arm926ejs/mxs/spl_power_init.c | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'arch') diff --git a/arch/arm/cpu/arm926ejs/mxs/spl_power_init.c b/arch/arm/cpu/arm926ejs/mxs/spl_power_init.c index c341960f38..6dd3bfc9bc 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; } -- cgit v1.2.1