imx8mq: Set ARM core clock directly from ARM PLL

For ARM core clock, there are two input branches, and can select via mux:
one from ARM PLL directly, second from CCM A53 clock root.

Currently we are using second branch. But IC confirmed the CCM A53 root
signoff timing is 1Ghz, so we should switch to input from ARM PLL directly.

This patch fixes the CORE SEL slice configuration and switch ARM clock
to ARM PLL.

Reviewed-by: Fabio Estevam <festevam@gmail.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>

1 files changed, 2 insertions, 1 deletions

diff --git a/arch/arm/include/asm/arch-imx8m/clock_imx8mq.h b/arch/arm/include/asm/arch-imx8m/clock_imx8mq.h
index 38a6f5966b..9dda6ddc8c 100644
--- a/arch/arm/include/asm/arch-imx8m/clock_imx8mq.h
+++ b/arch/arm/include/asm/arch-imx8m/clock_imx8mq.h
@@ -153,6 +153,7 @@ enum clk_root_src {
 	EXT_CLK_3,
 	EXT_CLK_4,
 	OSC_27M_CLK,
+	ARM_A53_ALT_CLK,
 };
 
 /* CCGR index */
@@ -419,7 +420,7 @@ enum clk_src_index {
 
 enum frac_pll_out_val {
 	FRAC_PLL_OUT_1000M,
-	FRAC_PLL_OUT_1600M,
+	FRAC_PLL_OUT_800M,
 };
 
 void init_nand_clk(void);