From e4dc3fc0681bd205b1db6336b0ea3849b5c683e9 Mon Sep 17 00:00:00 2001 From: Peng Fan Date: Wed, 9 Mar 2016 16:44:36 +0800 Subject: [PATCH] imx: mx6ul: skip setting ahb rate To i.MX6UL, default ARM rate and AHB rate is 396M and 198M, no need to set them. Signed-off-by: Peng Fan Cc: Stefano Babic --- arch/arm/cpu/armv7/mx6/soc.c | 19 ++++++++++++------- 1 file changed, 12 insertions(+), 7 deletions(-) diff --git a/arch/arm/cpu/armv7/mx6/soc.c b/arch/arm/cpu/armv7/mx6/soc.c index bdd41b07f4..f29901f8cc 100644 --- a/arch/arm/cpu/armv7/mx6/soc.c +++ b/arch/arm/cpu/armv7/mx6/soc.c @@ -328,13 +328,18 @@ int arch_cpu_init(void) */ init_bandgap(); - /* - * When low freq boot is enabled, ROM will not set AHB - * freq, so we need to ensure AHB freq is 132MHz in such - * scenario. - */ - if (mxc_get_clock(MXC_ARM_CLK) == 396000000) - set_ahb_rate(132000000); + if (!IS_ENABLED(CONFIG_MX6UL)) { + /* + * When low freq boot is enabled, ROM will not set AHB + * freq, so we need to ensure AHB freq is 132MHz in such + * scenario. + * + * To i.MX6UL, when power up, default ARM core and + * AHB rate is 396M and 132M. + */ + if (mxc_get_clock(MXC_ARM_CLK) == 396000000) + set_ahb_rate(132000000); + } /* Set perclk to source from OSC 24MHz */ #if defined(CONFIG_MX6SL) -- 2.25.1