diff options
Diffstat (limited to 'arch/arm/cpu/armv7/omap3/board.c')
-rw-r--r-- | arch/arm/cpu/armv7/omap3/board.c | 45 |
1 files changed, 20 insertions, 25 deletions
diff --git a/arch/arm/cpu/armv7/omap3/board.c b/arch/arm/cpu/armv7/omap3/board.c index 51a1c58..b064c0c 100644 --- a/arch/arm/cpu/armv7/omap3/board.c +++ b/arch/arm/cpu/armv7/omap3/board.c @@ -415,31 +415,30 @@ static void omap3_emu_romcode_call(u32 service_id, u32 *parameters) do_omap3_emu_romcode_call(service_id, OMAP3_PUBLIC_SRAM_SCRATCH_AREA); } -void v7_arch_cp15_set_acr(u32 acr, u32 cpu_midr, u32 cpu_rev_comb, - u32 cpu_variant, u32 cpu_rev) +void __weak omap3_set_aux_cr_secure(u32 acr) { - if (get_device_type() == GP_DEVICE) { - omap_smc1(OMAP3_GP_ROMCODE_API_WRITE_ACR, acr); - } else { - struct emu_hal_params emu_romcode_params; - emu_romcode_params.num_params = 1; - emu_romcode_params.param1 = acr; - omap3_emu_romcode_call(OMAP3_EMU_HAL_API_WRITE_ACR, - (u32 *)&emu_romcode_params); - } + struct emu_hal_params emu_romcode_params; + + emu_romcode_params.num_params = 1; + emu_romcode_params.param1 = acr; + omap3_emu_romcode_call(OMAP3_EMU_HAL_API_WRITE_ACR, + (u32 *)&emu_romcode_params); } -static void omap3_update_aux_cr_secure(u32 set_bits, u32 clear_bits) +void v7_arch_cp15_set_acr(u32 acr, u32 cpu_midr, u32 cpu_rev_comb, + u32 cpu_variant, u32 cpu_rev) { - u32 acr; + /* Write ACR - affects secure banked bits */ + if (get_device_type() == GP_DEVICE) + omap_smc1(OMAP3_GP_ROMCODE_API_WRITE_ACR, acr); + else + omap3_set_aux_cr_secure(acr); - /* Read ACR */ - asm volatile ("mrc p15, 0, %0, c1, c0, 1" : "=r" (acr)); - acr &= ~clear_bits; - acr |= set_bits; - v7_arch_cp15_set_acr(acr, 0, 0, 0, 0); + /* Write ACR - affects non-secure banked bits - some erratas need it */ + asm volatile ("mcr p15, 0, %0, c1, c0, 1" : : "r" (acr)); } + #ifndef CONFIG_SYS_L2CACHE_OFF static void omap3_update_aux_cr(u32 set_bits, u32 clear_bits) { @@ -449,9 +448,8 @@ static void omap3_update_aux_cr(u32 set_bits, u32 clear_bits) asm volatile ("mrc p15, 0, %0, c1, c0, 1" : "=r" (acr)); acr &= ~clear_bits; acr |= set_bits; + v7_arch_cp15_set_acr(acr, 0, 0, 0, 0); - /* Write ACR - affects non-secure banked bits */ - asm volatile ("mcr p15, 0, %0, c1, c0, 1" : : "r" (acr)); } /* Invalidate the entire L2 cache from secure mode */ @@ -470,10 +468,9 @@ static void omap3_invalidate_l2_cache_secure(void) void v7_outer_cache_enable(void) { - /* Set L2EN */ - omap3_update_aux_cr_secure(0x2, 0); /* + * Set L2EN * On some revisions L2EN bit is banked on some revisions it's not * No harm in setting both banked bits(in fact this is required * by an erratum) @@ -483,10 +480,8 @@ void v7_outer_cache_enable(void) void omap3_outer_cache_disable(void) { - /* Clear L2EN */ - omap3_update_aux_cr_secure(0, 0x2); - /* + * Clear L2EN * On some revisions L2EN bit is banked on some revisions it's not * No harm in clearing both banked bits(in fact this is required * by an erratum) |