do not enable dcache by setting CONFIG_SYS_NPCM_DCACHE_OFF=y
Signed-off-by: Jim Liu JJLIU0@nuvoton.com --- arch/arm/mach-npcm/npcm8xx/Kconfig | 4 ++++ arch/arm/mach-npcm/npcm8xx/cpu.c | 12 +++++++++++- 2 files changed, 15 insertions(+), 1 deletion(-)
diff --git a/arch/arm/mach-npcm/npcm8xx/Kconfig b/arch/arm/mach-npcm/npcm8xx/Kconfig index 5f4a0506dc..163e7e7d48 100644 --- a/arch/arm/mach-npcm/npcm8xx/Kconfig +++ b/arch/arm/mach-npcm/npcm8xx/Kconfig @@ -6,6 +6,10 @@ config SYS_CPU config SYS_SOC default "npcm8xx"
+config SYS_NPCM_DCACHE_OFF + bool "Do not enable dcache" + default n + config TARGET_ARBEL_EVB bool "Arbel Evaluation Board" help diff --git a/arch/arm/mach-npcm/npcm8xx/cpu.c b/arch/arm/mach-npcm/npcm8xx/cpu.c index af59452609..fc691de950 100644 --- a/arch/arm/mach-npcm/npcm8xx/cpu.c +++ b/arch/arm/mach-npcm/npcm8xx/cpu.c @@ -81,7 +81,8 @@ int print_cpuinfo(void)
int arch_cpu_init(void) { - if (!IS_ENABLED(CONFIG_SYS_DCACHE_OFF)) { + if (!IS_ENABLED(CONFIG_SYS_DCACHE_OFF) && + !IS_ENABLED(CONFIG_SYS_NPCM_DCACHE_OFF)) { /* Enable cache to speed up system running */ if (get_sctlr() & CR_M) return 0; @@ -143,3 +144,12 @@ int timer_init(void)
return 0; } + +void enable_caches(void) +{ + icache_enable(); + + if (!IS_ENABLED(CONFIG_SYS_NPCM_DCACHE_OFF)) + dcache_enable(); + +}