stm32mp1: change STGEN clock source to HSE

No more use static frequency HSI = 64MHz for STGEN clock
but HSE (with higher accurency) by default.

Need to remove CONFIG_SYS_HZ_CLOCK as arch timer frequency
is provided at boot by BootRom and cp15 cntfrq and modified
during clock tree initialization if needed.

When HSI is no more used by any device, this internal
oscillator can be switched off to reduce consumption.

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>

diff --git a/arch/arm/dts/stm32mp157c-ed1-u-boot.dtsi b/arch/arm/dts/stm32mp157c-ed1-u-boot.dtsi
index 5d43753..2caa939 100644 (file)
--- a/arch/arm/dts/stm32mp157c-ed1-u-boot.dtsi
+++ b/arch/arm/dts/stm32mp157c-ed1-u-boot.dtsi
@@ -76,6 +76,7 @@
        st,pkcs = <
                CLK_CKPER_DISABLED
                CLK_SDMMC12_PLL3R
+               CLK_STGEN_HSE
                CLK_I2C46_PCLK5
                CLK_I2C12_PCLK1
                CLK_SDMMC3_PLL3R

diff --git a/include/configs/stm32mp1.h b/include/configs/stm32mp1.h
index 8159101..da0e259 100644 (file)
--- a/include/configs/stm32mp1.h
+++ b/include/configs/stm32mp1.h
@@ -18,7 +18,6 @@
  */
 #define CONFIG_SYS_HZ                          1000
 #define CONFIG_SYS_ARCH_TIMER
-#define CONFIG_SYS_HZ_CLOCK                    64000000
 
 /*
  * malloc() pool size