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 <[email protected]> Cc: Stefano Babic <[email protected]> --- arch/arm/cpu/armv7/mx6/soc.c | 12 +++++++++++- 1 file changed, 11 insertions(+), 1 deletion(-) diff --git a/arch/arm/cpu/armv7/mx6/soc.c b/arch/arm/cpu/armv7/mx6/soc.c index f29901f..d4b22ad 100644 --- a/arch/arm/cpu/armv7/mx6/soc.c +++ b/arch/arm/cpu/armv7/mx6/soc.c @@ -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 -- 2.6.2 _______________________________________________ U-Boot mailing list [email protected] http://lists.denx.de/mailman/listinfo/u-boot
