[U-Boot] [i.MX8MM+CCF 34/41] imx8m: soc: enable SCTR clock before timer init

Peng Fan
2019-04-30T10:19:32Z

To i.MX8MM SCTR clock is disabled by ROM, so before timer init
need to enable it.
To i.MX8MQ, it does not hurt the clock is enabled again.

Signed-off-by: Peng Fan <peng.fan@nxp.com>
---
arch/arm/mach-imx/imx8m/soc.c | 6 ++++++
1 file changed, 6 insertions(+)

diff --git a/arch/arm/mach-imx/imx8m/soc.c b/arch/arm/mach-imx/imx8m/soc.c
index abf526bc68..ea83a495c2 100644
--- a/arch/arm/mach-imx/imx8m/soc.c
+++ b/arch/arm/mach-imx/imx8m/soc.c
@@ -234,6 +234,12 @@ static void imx_set_wdog_powerdown(bool enable)

int arch_cpu_init(void)
{
+ /*
+ * ROM might disable clock for SCTR,
+ * enable the clock before timer_init.
+ */
+ if (IS_ENABLED(CONFIG_SPL_BUILD))
+ clock_enable(CCGR_SCTR, 1);
/*
* Init timer at very early state, because sscg pll setting
* will use it
--
2.16.4