diff options
Diffstat (limited to 'arch/x86/cpu/ivybridge/cpu.c')
| -rw-r--r-- | arch/x86/cpu/ivybridge/cpu.c | 96 |
1 files changed, 13 insertions, 83 deletions
diff --git a/arch/x86/cpu/ivybridge/cpu.c b/arch/x86/cpu/ivybridge/cpu.c index 948833c028..0f9390517f 100644 --- a/arch/x86/cpu/ivybridge/cpu.c +++ b/arch/x86/cpu/ivybridge/cpu.c @@ -17,15 +17,18 @@ #include <fdtdec.h> #include <pch.h> #include <asm/cpu.h> +#include <asm/cpu_common.h> +#include <asm/intel_regs.h> #include <asm/io.h> #include <asm/lapic.h> +#include <asm/lpc_common.h> +#include <asm/microcode.h> #include <asm/msr.h> #include <asm/mtrr.h> #include <asm/pci.h> #include <asm/post.h> #include <asm/processor.h> #include <asm/arch/model_206ax.h> -#include <asm/arch/microcode.h> #include <asm/arch/pch.h> #include <asm/arch/sandybridge.h> @@ -33,51 +36,11 @@ DECLARE_GLOBAL_DATA_PTR; static int set_flex_ratio_to_tdp_nominal(void) { - msr_t flex_ratio, msr; - u8 nominal_ratio; - /* Minimum CPU revision for configurable TDP support */ if (cpuid_eax(1) < IVB_CONFIG_TDP_MIN_CPUID) return -EINVAL; - /* Check for Flex Ratio support */ - flex_ratio = msr_read(MSR_FLEX_RATIO); - if (!(flex_ratio.lo & FLEX_RATIO_EN)) - return -EINVAL; - - /* Check for >0 configurable TDPs */ - msr = msr_read(MSR_PLATFORM_INFO); - if (((msr.hi >> 1) & 3) == 0) - return -EINVAL; - - /* Use nominal TDP ratio for flex ratio */ - msr = msr_read(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 0; - - /* Set flex ratio to nominal TDP ratio */ - flex_ratio.lo &= ~0xff00; - flex_ratio.lo |= nominal_ratio << 8; - flex_ratio.lo |= FLEX_RATIO_LOCK; - msr_write(MSR_FLEX_RATIO, flex_ratio); - - /* Set flex ratio in soft reset data register bits 11:6 */ - clrsetbits_le32(RCB_REG(SOFT_RESET_DATA), 0x3f << 6, - (nominal_ratio & 0x3f) << 6); - - /* Set soft reset control to use register value */ - setbits_le32(RCB_REG(SOFT_RESET_CTRL), 1); - - /* Issue warm reset, will be "CPU only" due to soft reset data */ - outb(0x0, PORT_RESET); - outb(SYS_RST | RST_CPU, PORT_RESET); - cpu_hlt(); - - /* Not reached */ - return -EINVAL; + return cpu_set_flex_ratio_to_tdp_nominal(); } int arch_cpu_init(void) @@ -104,9 +67,9 @@ int arch_cpu_init_dm(void) /* TODO(sjg@chromium.org): Get rid of gd->hose */ gd->hose = hose; - ret = uclass_first_device(UCLASS_LPC, &dev); - if (!dev) - return -ENODEV; + ret = uclass_first_device_err(UCLASS_LPC, &dev); + if (ret) + return ret; /* * We should do as little as possible before the serial console is @@ -162,17 +125,6 @@ static void enable_usb_bar(struct udevice *bus) pci_bus_write_config(bus, usb3, PCI_COMMAND, cmd, PCI_SIZE_32); } -static int report_bist_failure(void) -{ - if (gd->arch.bist != 0) { - post_code(POST_BIST_FAILURE); - printf("BIST failed: %08x\n", gd->arch.bist); - return -EFAULT; - } - - return 0; -} - int print_cpuinfo(void) { enum pei_boot_mode_t boot_mode = PEI_BOOT_NONE; @@ -183,20 +135,6 @@ int print_cpuinfo(void) uint16_t pm1_sts; int ret; - /* Halt if there was a built in self test failure */ - ret = report_bist_failure(); - if (ret) - return ret; - - enable_lapic(); - - ret = microcode_update_intel(); - if (ret) - return ret; - - /* Enable upper 128bytes of CMOS */ - writel(1 << 2, RCB_REG(RC)); - /* TODO: cmos_post_init() */ if (readl(MCHBAR_REG(SSKPD)) == 0xCAFE) { debug("soft reset detected\n"); @@ -207,17 +145,9 @@ int print_cpuinfo(void) reset_cpu(0); } - /* Early chipset init required before RAM init can work */ - uclass_first_device(UCLASS_NORTHBRIDGE, &dev); - - ret = uclass_first_device(UCLASS_LPC, &lpc); + ret = cpu_common_init(); if (ret) return ret; - if (!dev) - return -ENODEV; - - /* Cause the SATA device to do its early init */ - uclass_first_device(UCLASS_DISK, &dev); /* Check PM1_STS[15] to see if we are waking from Sx */ pm1_sts = inw(DEFAULT_PMBASE + PM1_STS); @@ -236,15 +166,15 @@ int print_cpuinfo(void) post_code(POST_EARLY_INIT); /* Enable SPD ROMs and DDR-III DRAM */ - ret = uclass_first_device(UCLASS_I2C, &dev); + ret = uclass_first_device_err(UCLASS_I2C, &dev); if (ret) return ret; - if (!dev) - return -ENODEV; /* Prepare USB controller early in S3 resume */ - if (boot_mode == PEI_BOOT_RESUME) + if (boot_mode == PEI_BOOT_RESUME) { + uclass_first_device(UCLASS_LPC, &lpc); enable_usb_bar(pci_get_controller(lpc->parent)); + } gd->arch.pei_boot_mode = boot_mode; |
