For some SoCs, the system clock frequency may not equal to the ARCH Timer's frequency.
This patch uses the CONFIG_TIMER_CLK_FREQ instead of CONFIG_SYS_CLK_FREQ, then the system clock macro and arch timer macor could be set separately and without interfering each other.
Signed-off-by: Xiubo Li Li.Xiubo@freescale.com ---
Hi Albert,
I there is one mistake about the CONFIG_TIMER_CLK_FREQ defination for sun7i platform.
So i respin this patch separately.
Thanks,
BRs Xiubo
arch/arm/cpu/armv7/nonsec_virt.S | 4 ++-- include/configs/sun7i.h | 1 + 2 files changed, 3 insertions(+), 2 deletions(-)
diff --git a/arch/arm/cpu/armv7/nonsec_virt.S b/arch/arm/cpu/armv7/nonsec_virt.S index 1ab5d54..30d81db 100644 --- a/arch/arm/cpu/armv7/nonsec_virt.S +++ b/arch/arm/cpu/armv7/nonsec_virt.S @@ -169,11 +169,11 @@ ENTRY(_nonsec_init) * we do this here instead. * But first check if we have the generic timer. */ -#ifdef CONFIG_SYS_CLK_FREQ +#ifdef CONFIG_TIMER_CLK_FREQ mrc p15, 0, r0, c0, c1, 1 @ read ID_PFR1 and r0, r0, #CPUID_ARM_GENTIMER_MASK @ mask arch timer bits cmp r0, #(1 << CPUID_ARM_GENTIMER_SHIFT) - ldreq r1, =CONFIG_SYS_CLK_FREQ + ldreq r1, =CONFIG_TIMER_CLK_FREQ mcreq p15, 0, r1, c14, c0, 0 @ write CNTFRQ #endif
diff --git a/include/configs/sun7i.h b/include/configs/sun7i.h index ea40790..368d527 100644 --- a/include/configs/sun7i.h +++ b/include/configs/sun7i.h @@ -28,6 +28,7 @@ #define CONFIG_ARMV7_PSCI_NR_CPUS 2 #define CONFIG_ARMV7_SECURE_BASE SUNXI_SRAM_B_BASE #define CONFIG_SYS_CLK_FREQ 24000000 +#define CONFIG_TIMER_CLK_FREQ CONFIG_SYS_CLK_FREQ
/* * Include common sunxi configuration where most the settings are