From 64ce2fbd6c9ebb68e274ae1b3c449e1cae86c5b6 Mon Sep 17 00:00:00 2001 From: Tom Rini Date: Thu, 5 Jun 2014 11:15:28 -0400 Subject: arm:am33xx: Add a scale_vcores() hook Similar to OMAP4/5 we need to scale the voltage up prior to changing the clock frequencies up higher. Add a similar hook to start with. Signed-off-by: Tom Rini --- arch/arm/cpu/armv7/am33xx/clock.c | 11 +++++++++++ 1 file changed, 11 insertions(+) (limited to 'arch/arm/cpu') diff --git a/arch/arm/cpu/armv7/am33xx/clock.c b/arch/arm/cpu/armv7/am33xx/clock.c index 0672798..ec7d468 100644 --- a/arch/arm/cpu/armv7/am33xx/clock.c +++ b/arch/arm/cpu/armv7/am33xx/clock.c @@ -170,8 +170,19 @@ void do_enable_clocks(u32 *const *clk_domains, }; } +/* + * Before scaling up the clocks we need to have the PMIC scale up the + * voltages first. This will be dependent on which PMIC is in use + * and in some cases we may not be scaling things up at all and thus not + * need to do anything here. + */ +__weak void scale_vcores(void) +{ +} + void prcm_init() { enable_basic_clocks(); + scale_vcores(); setup_dplls(); } -- cgit v1.1