diff options
| author | Peng Fan <van.freenix@gmail.com> | 2016-03-09 16:44:36 +0800 |
|---|---|---|
| committer | Stefano Babic <sbabic@denx.de> | 2016-03-25 13:56:40 +0100 |
| commit | e4dc3fc0681bd205b1db6336b0ea3849b5c683e9 (patch) | |
| tree | 8b1455ce5ea60427a831a6a594ef8407b060f31f /arch/arm/cpu/armv7 | |
| parent | b777789ebd193587a8e4700dce656523df821370 (diff) | |
| download | blackbird-obmc-uboot-e4dc3fc0681bd205b1db6336b0ea3849b5c683e9.tar.gz blackbird-obmc-uboot-e4dc3fc0681bd205b1db6336b0ea3849b5c683e9.zip | |
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 <van.freenix@gmail.com>
Cc: Stefano Babic <sbabic@denx.de>
Diffstat (limited to 'arch/arm/cpu/armv7')
| -rw-r--r-- | arch/arm/cpu/armv7/mx6/soc.c | 19 |
1 files 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) |
