diff options
Diffstat (limited to 'src/cpu/via/c7/c7_init.c')
-rw-r--r-- | src/cpu/via/c7/c7_init.c | 226 |
1 files changed, 0 insertions, 226 deletions
diff --git a/src/cpu/via/c7/c7_init.c b/src/cpu/via/c7/c7_init.c deleted file mode 100644 index 1527e64a81..0000000000 --- a/src/cpu/via/c7/c7_init.c +++ /dev/null @@ -1,226 +0,0 @@ -/* - * This file is part of the coreboot project. - * - * (C) 2007-2009 coresystems GmbH - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation; version 2 of - * the License. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - */ - -#include <device/device.h> -#include <console/console.h> -#include <delay.h> -#include <stdlib.h> -#include <cpu/cpu.h> -#include <cpu/x86/mtrr.h> -#include <cpu/x86/msr.h> -#include <cpu/x86/lapic.h> -#include <cpu/x86/cache.h> - -#define MSR_IA32_PERF_STATUS 0x00000198 -#define MSR_IA32_PERF_CTL 0x00000199 -#define MSR_IA32_MISC_ENABLE 0x000001a0 - -static int c7a_speed_translation[] = { -// LFM HFM - 0x0409, 0x0f13, // 400MHz, 844mV --> 1500MHz, 1.004V C7-M - 0x0409, 0x1018, // 400MHz, 844mV --> 1600MHz, 1.084V - 0x0409, 0x0c18, // 533MHz, 844mV --> 1600MHz, 1.084V - 0x0409, 0x121c, // 400MHz, 844mV --> 1800MHz, 1.148V - 0x0409, 0x0e1c, // 533MHz, 844mV --> 1860MHz, 1.148V - 0x0409, 0x141f, // 400MHz, 844mV --> 2000MHz, 1.196V - 0x0409, 0x0f1f, // 533MHz, 844mV --> 2000MHz, 1.196V - 0x0406, 0x0a06, // 400MHz, 796mV --> 1000MHz, 796mV C7-M ULV - 0x0406, 0x0a09, // 400MHz, 796mV --> 1000MHz, 844mV - 0x0406, 0x0c09, // 400MHz, 796mV --> 1200MHz, 844mV - 0x0406, 0x0f10, // 400MHz, 796mV --> 1500MHz, 956mV -}; - -static int c7d_speed_translation[] = { -// LFM HFM - 0x0409, 0x1018, // 400MHz, 844mV --> 1600MHz, 1.084V C7-M - 0x0409, 0x121f, // 400MHz, 844mV --> 1800MHz, 1.196V - 0x0809, 0x121f, // 800MHz, 844mV --> 1800MHz, 1.196V - 0x0409, 0x141f, // 400MHz, 844mV --> 2000MHz, 1.196V - 0x0809, 0x141f, // 800MHz, 844mV --> 2000MHz, 1.196V - 0x0406, 0x0806, // 400MHz, 796mV --> 800MHz, 796mV C7-M ULV - 0x0406, 0x0a06, // 400MHz, 796mV --> 1000MHz, 796mV - 0x0406, 0x0c09, // 400MHz, 796mV --> 1200MHz, 844mV - 0x0806, 0x0c09, // 800MHz, 796mV --> 1200MHz, 844mV - 0x0406, 0x0f10, // 400MHz, 796mV --> 1500MHz, 956mV - 0x0806, 0x1010, // 800MHz, 796mV --> 1600MHz, 956mV -}; - -static void set_c7_speed(int model) { - int cnt, current, new, i; - msr_t msr; - printk(BIOS_DEBUG, "Enabling improved C7 clock and voltage.\n"); - - // Enable Speedstep - msr = rdmsr(MSR_IA32_MISC_ENABLE); - msr.lo |= (1 << 16); - wrmsr(MSR_IA32_MISC_ENABLE, msr); - - msr = rdmsr(MSR_IA32_PERF_STATUS); - - printk(BIOS_INFO, "Voltage: %dmV (min %dmV; max %dmV)\n", - ((int)(msr.lo & 0xff) * 16 + 700), - ((int)((msr.hi >> 16) & 0xff) * 16 + 700), - ((int)(msr.hi & 0xff) * 16 + 700)); - - printk(BIOS_INFO, "CPU multiplier: %dx (min %dx; max %dx)\n", - (int)((msr.lo >> 8) & 0xff), - (int)((msr.hi >> 24) & 0xff), (int)((msr.hi >> 8) & 0xff)); - - printk(BIOS_DEBUG, " msr.lo = %x\n", msr.lo); - - /* Wait while CPU is busy */ - cnt = 0; - while (msr.lo & ((1 << 16) | (1 << 17))) { - udelay(16); - msr = rdmsr(MSR_IA32_PERF_STATUS); - cnt++; - if (cnt > 128) { - printk(BIOS_WARNING, "Could not update multiplier and voltage.\n"); - return; - } - } - - current = msr.lo & 0xffff; - - // Start out with no change. - new = current; - switch (model) { - case 10: // model A - for (i = 0; i < ARRAY_SIZE(c7a_speed_translation); i += 2) { - if ((c7a_speed_translation[i] == current) && - ((c7a_speed_translation[i + 1] & 0xff00) == - (msr.hi & 0xff00))) { - new = c7a_speed_translation[i + 1]; - } - } - break; - case 13: // model D - for (i = 0; i < ARRAY_SIZE(c7d_speed_translation); i += 2) { - if ((c7d_speed_translation[i] == current) && - ((c7d_speed_translation[i + 1] & 0xff00) == - (msr.hi & 0xff00))) { - new = c7d_speed_translation[i + 1]; - } - } - break; - default: - printk(BIOS_INFO, "CPU type not known, multiplier unchanged.\n"); - } - - msr.lo = new; - msr.hi = 0; - printk(BIOS_DEBUG, " new msr.lo = %x\n", msr.lo); - - wrmsr(MSR_IA32_PERF_CTL, msr); - - /* Wait until the power transition ends */ - cnt = 0; - do { - udelay(16); - msr = rdmsr(MSR_IA32_PERF_STATUS); - cnt++; - if (cnt > 128) { - printk(BIOS_WARNING, "Error while updating multiplier and voltage\n"); - break; - } - } while (msr.lo & ((1 << 16) | (1 << 17))); - - printk(BIOS_INFO, "Current voltage: %dmV\n", ((int)(msr.lo & 0xff) * 16 + 700)); - printk(BIOS_INFO, "Current CPU multiplier: %dx\n", (int)((msr.lo >> 8) & 0xff)); -} - -static void c7_init(struct device *dev) -{ - u8 brand; - struct cpuinfo_x86 c; - msr_t msr; - - get_fms(&c, dev->device); - - printk(BIOS_INFO, "Detected VIA "); - - switch (c.x86_model) { - case 10: - msr = rdmsr(0x1153); - brand = (((msr.lo >> 2) ^ msr.lo) >> 18) & 3; - printk(BIOS_INFO, "Model A "); - break; - case 13: - msr = rdmsr(0x1154); - brand = (((msr.lo >> 4) ^ (msr.lo >> 2))) & 0x000000ff; - printk(BIOS_INFO, "Model D "); - break; - default: - printk(BIOS_INFO, "Model Unknown "); - brand = 0xff; - } - - switch (brand) { - case 0: - printk(BIOS_INFO, "C7-M\n"); - break; - case 1: - printk(BIOS_INFO, "C7\n"); - break; - case 2: - printk(BIOS_INFO, "Eden\n"); - break; - case 3: - printk(BIOS_INFO, "C7-D\n"); - break; - default: - printk(BIOS_INFO, "%02x (please report)\n", brand); - } - - /* Gear up */ - set_c7_speed(c.x86_model); - - /* Enable APIC */ - msr = rdmsr(0x1107); - msr.lo |= 1 << 24; - wrmsr(0x1107, msr); - - /* Turn on cache */ - x86_enable_cache(); - - /* Set up Memory Type Range Registers */ - x86_setup_mtrrs(); - x86_mtrr_check(); - - /* Enable the local CPU APICs */ - setup_lapic(); -}; - -static struct device_operations cpu_dev_ops = { - .init = c7_init, -}; - -/* Look in arch/x86/lib/cpu.c:cpu_initialize. If there is no CPU with an exact - * ID, the CPU mask (stepping) is masked out and the check is repeated. This - * allows us to keep the table significantly smaller. - */ - -static const struct cpu_device_id cpu_table[] = { - {X86_VENDOR_CENTAUR, 0x06A0}, // VIA C7 Esther - {X86_VENDOR_CENTAUR, 0x06A9}, // VIA C7 Esther - {X86_VENDOR_CENTAUR, 0x06D0}, // VIA C7-M - {0, 0}, -}; - -static const struct cpu_driver driver __cpu_driver = { - .ops = &cpu_dev_ops, - .id_table = cpu_table, -}; |