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

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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>
This commit is contained in:
Otavio Salvador 2012-08-05 09:05:33 +00:00 committed by Albert ARIBAUD
parent 1e0cf5c34b
commit 05c823bd32
1 changed files with 4 additions and 0 deletions
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4
arch/arm/cpu/arm926ejs/mxs/spl_power_init.c
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@ -577,6 +577,10 @@ void mxs_handle_5v_conflict(void)
tmp = readl(&power_regs->hw_power_sts); tmp = readl(&power_regs->hw_power_sts);
if (tmp & POWER_STS_VDDIO_BO) { if (tmp & POWER_STS_VDDIO_BO) {
/*
* VDDIO has a brownout, then the VDD5V_GT_VDDIO becomes
* unreliable
*/
mxs_powerdown(); mxs_powerdown();
break; break;
} }