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Wenyou Yang 2b21cf55cc ARM: at91: spl: Add mck function to lower rate while switching 
Refer to the commit 70f8c8316ad(PMC: add new mck function to lower
rate while switching) from AT91Bootstrap.

While switching to a lower clock source, we must switch the clock
source first instead of last. Otherwise, we could end up with
too high frequency on internal bus and peripherals.
This happens on SAMA5D2 as exitting from the ROM code.

Add a function pmc_mck_init_down() to allow this sequence.

Signed-off-by: Wenyou Yang <wenyou.yang@microchip.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2017-09-14 16:02:44 -04:00
..
cpu armv8: fsl-layerscape: Add back L3 flushing for all exception levels 2017-09-11 08:02:13 -07:00
dts ARM: dts: at91: sama5: Add the sfr node 2017-09-14 16:02:43 -04:00
include ARM: DRA72x: Add support for detection of DRA71x SR 2.1 2017-09-12 18:02:29 -04:00
lib env: Rename getenv/_f() to env_get() 2017-08-16 08:30:24 -04:00
mach-aspeed aspeed: Refactor SCU to use consistent mask & shift 2017-05-08 11:57:35 -04:00
mach-at91 ARM: at91: spl: Add mck function to lower rate while switching 2017-09-14 16:02:44 -04:00
mach-bcm283x bcm2835_wdt: support for the BCM2835/2836 watchdog 2017-05-09 20:30:08 -04:00
mach-davinci env: Rename eth_getenv_enetaddr() to eth_env_get_enetaddr() 2017-08-16 08:30:44 -04:00
mach-exynos usb: net: migrate USB Ethernet adapters to Kconfig 2017-09-08 10:23:00 -04:00
mach-highbank
mach-imx usb: net: migrate USB Ethernet adapters to Kconfig 2017-09-08 10:23:00 -04:00
mach-integrator env: Convert CONFIG_ENV_IS_IN... to a choice 2017-08-15 20:50:01 -04:00
mach-keystone env: Rename getenv/_f() to env_get() 2017-08-16 08:30:24 -04:00
mach-kirkwood env: Rename getenv/_f() to env_get() 2017-08-16 08:30:24 -04:00
mach-meson meson-gx: reserved memory regions 2017-07-22 15:36:18 -04:00
mach-mvebu env: Convert CONFIG_ENV_IS_IN... to a choice 2017-08-15 20:50:01 -04:00
mach-omap2 Convert CONFIG_EMIF4 et al to Kconfig 2017-09-13 09:24:27 -04:00
mach-orion5x spl: add hierarchical defaults for SPL_LDSCRIPT 2017-08-13 17:12:37 +02:00
mach-rmobile ARM: rmobile: Add missing IPSR18 bits to R8A7795 PFC 2017-09-05 07:51:39 +09:00
mach-rockchip rockchip: rk3328: fix syscon id table 2017-09-08 11:44:51 +02:00
mach-s5pc1xx
mach-snapdragon dm: Rename dev_addr..() functions 2017-06-01 07:03:01 -06:00
mach-socfpga env: Rename setenv() to env_set() 2017-08-16 08:22:18 -04:00
mach-sti board: Add STMicroelectronics STiH410-B2260 support 2017-03-14 20:40:21 -04:00
mach-stm32 spl: stm32: make falcon mode activation configurable 2017-08-26 14:56:13 -04:00
mach-sunxi sunxi: Enable MMC new mode for A83T 2017-08-28 22:36:48 +05:30
mach-tegra dm: core: Add ofnode_for_each_subnode() 2017-09-11 21:43:58 -06:00
mach-uniphier ARM: uniphier: set system bus pinmux for PXs3 2017-08-30 09:07:04 +09:00
mach-versatile
mach-zynq spl: add hierarchical defaults for SPL_LDSCRIPT 2017-08-13 17:12:37 +02:00
thumb1/include/asm/proc-armv
config.mk arm: Always keep the dtb section on objcopy 2017-06-05 14:13:11 -04:00
Kconfig armv8: ls1088aqds: Add support of LS1088AQDS 2017-09-11 08:01:05 -07:00
Kconfig.debug
Makefile imx: reorganize IMX code as other SOCs 2017-07-12 10:17:44 +02:00