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imx: mx6ul configure the PMIC_STBY_REQ pin as open drain 

Configure the PMIC_STBY_REQ pin as open drain 100K according
to the design team's requirement for the PMIC_STBY_REQ pin
for i.MX 6UltraLite TO1.0.

Signed-off-by: Peng Fan <van.freenix@gmail.com>
Cc: Stefano Babic <sbabic@denx.de>
utp
Peng Fan 2016-03-09 16:44:37 +08:00 committed by Stefano Babic
parent e4dc3fc068
commit 7082d87916
1 changed files with 11 additions and 1 deletions
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12
arch/arm/cpu/armv7/mx6/soc.c
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@ -341,7 +341,17 @@ int arch_cpu_init(void)
set_ahb_rate(132000000);
}
/* Set perclk to source from OSC 24MHz */
if (IS_ENABLED(CONFIG_MX6UL) && is_soc_rev(CHIP_REV_1_0) == 0) {
/*
* According to the design team's requirement on i.MX6UL,
* the PMIC_STBY_REQ PAD should be configured as open
* drain 100K (0x0000b8a0).
* Only exists on TO1.0
*/
writel(0x0000b8a0, IOMUXC_BASE_ADDR + 0x29c);
}
/* Set perclk to source from OSC 24MHz */
#if defined(CONFIG_MX6SL)
set_preclk_from_osc();
#endif