diff options
Diffstat (limited to 'src/cpu/intel')
| -rw-r--r-- | src/cpu/intel/model_2065x/bootblock.c | 52 |
1 files changed, 0 insertions, 52 deletions
diff --git a/src/cpu/intel/model_2065x/bootblock.c b/src/cpu/intel/model_2065x/bootblock.c index 273c193f3a..399f5e0838 100644 --- a/src/cpu/intel/model_2065x/bootblock.c +++ b/src/cpu/intel/model_2065x/bootblock.c @@ -57,60 +57,8 @@ static void enable_rom_caching(void) wrmsr(MTRR_DEF_TYPE_MSR, msr); } -static void set_flex_ratio_to_tdp_nominal(void) -{ - msr_t flex_ratio, msr; - u32 soft_reset; - u8 nominal_ratio; - - /* Minimum CPU revision for configurable TDP support */ - if (cpuid_eax(1) < IVB_CONFIG_TDP_MIN_CPUID) - return; - - /* Check for Flex Ratio support */ - flex_ratio = rdmsr(MSR_FLEX_RATIO); - if (!(flex_ratio.lo & FLEX_RATIO_EN)) - return; - - /* Check for >0 configurable TDPs */ - msr = rdmsr(MSR_PLATFORM_INFO); - if (((msr.hi >> 1) & 3) == 0) - return; - - /* Use nominal TDP ratio for flex ratio */ - msr = rdmsr(MSR_CONFIG_TDP_NOMINAL); - nominal_ratio = msr.lo & 0xff; - - /* See if flex ratio is already set to nominal TDP ratio */ - if (((flex_ratio.lo >> 8) & 0xff) == nominal_ratio) - return; - - /* Set flex ratio to nominal TDP ratio */ - flex_ratio.lo &= ~0xff00; - flex_ratio.lo |= nominal_ratio << 8; - flex_ratio.lo |= FLEX_RATIO_LOCK; - wrmsr(MSR_FLEX_RATIO, flex_ratio); - - /* Set flex ratio in soft reset data register bits 11:6. - * RCBA region is enabled in southbridge bootblock */ - soft_reset = RCBA32(SOFT_RESET_DATA); - soft_reset &= ~(0x3f << 6); - soft_reset |= (nominal_ratio & 0x3f) << 6; - RCBA32(SOFT_RESET_DATA) = soft_reset; - - /* Set soft reset control to use register value */ - RCBA32_OR(SOFT_RESET_CTRL, 1); - - /* Issue warm reset, will be "CPU only" due to soft reset data */ - outb(0x0, 0xcf9); - outb(0x6, 0xcf9); - halt(); -} - static void bootblock_cpu_init(void) { - /* Set flex ratio and reset if needed */ - set_flex_ratio_to_tdp_nominal(); enable_rom_caching(); intel_update_microcode_from_cbfs(); } |