| /* |
| * This file is part of the coreboot project. |
| * |
| * Copyright (C) 2007 AMD |
| * (Written by Yinghai Lu <yinghailu@amd.com> for AMD) |
| * Copyright (C) 2007 Philipp Degler <pdegler@rumms.uni-mannheim.de> |
| * (Thanks to LSRA University of Mannheim for their support) |
| * Copyright (C) 2008 Jonathan A. Kollasch <jakllsch@kollasch.net> |
| * |
| * 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; either version 2 of the License, or |
| * (at your option) any later version. |
| * |
| * 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 <stdint.h> |
| #include <string.h> |
| #include <device/pci_def.h> |
| #include <arch/io.h> |
| #include <device/pnp_def.h> |
| #include <cpu/x86/lapic.h> |
| #include <pc80/mc146818rtc.h> |
| #include <cpu/x86/lapic.h> |
| #include "northbridge/amd/amdk8/reset_test.c" |
| #include <superio/winbond/common/winbond.h> |
| #include <superio/winbond/w83627thg/w83627thg.h> |
| #include <cpu/amd/model_fxx_rev.h> |
| #include <console/console.h> |
| #include "northbridge/amd/amdk8/incoherent_ht.c" |
| #include <southbridge/nvidia/ck804/early_smbus.h> |
| #include <northbridge/amd/amdk8/raminit.h> |
| #include <delay.h> |
| #include "northbridge/amd/amdk8/debug.c" |
| #include <cpu/x86/bist.h> |
| #include "northbridge/amd/amdk8/setup_resource_map.c" |
| #include "northbridge/amd/amdk8/coherent_ht.c" |
| #include "cpu/amd/dualcore/dualcore.c" |
| #include <spd.h> |
| |
| #if CONFIG_HAVE_OPTION_TABLE |
| #include "option_table.h" |
| #endif |
| |
| #define SERIAL_DEV PNP_DEV(0x4e, W83627THG_SP1) |
| |
| static void memreset(int controllers, const struct mem_controller *ctrl) { } |
| static void activate_spd_rom(const struct mem_controller *ctrl) { } |
| |
| static inline int spd_read_byte(unsigned device, unsigned address) |
| { |
| return smbus_read_byte(device, address); |
| } |
| |
| #include "northbridge/amd/amdk8/raminit.c" |
| #include "lib/generic_sdram.c" |
| #include <southbridge/nvidia/ck804/early_setup_ss.h> |
| #include "southbridge/nvidia/ck804/early_setup_car.c" |
| #include "cpu/amd/model_fxx/init_cpus.c" |
| #include "northbridge/amd/amdk8/early_ht.c" |
| |
| static void ms7135_set_ram_voltage(void) |
| { |
| u8 b; |
| b = read_option(ram_voltage, 0); |
| if (b > 4) /* default if above 2.70v */ |
| b = 0; |
| printk(BIOS_INFO, "setting RAM voltage %08x\n", b); |
| ck804_smbus_write_byte(1, 0x2f, 0x00, b); |
| } |
| |
| static void ms7135_set_nf4_voltage(void) |
| { |
| u8 b; |
| b = read_option(nf4_voltage, 0); |
| if (b > 2) /* default if above 1.60v */ |
| b = 0; |
| b |= 0x10; |
| printk(BIOS_INFO, "setting NF4 voltage %08x\n", b); |
| ck804_smbus_write_byte(1, 0x2f, 0x02, b); |
| } |
| |
| static void sio_setup(void) |
| { |
| u32 dword; |
| u8 byte; |
| |
| /* Subject decoding */ |
| byte = pci_read_config8(PCI_DEV(0, CK804_DEVN_BASE + 1, 0), 0x7b); |
| byte |= 0x20; |
| pci_write_config8(PCI_DEV(0, CK804_DEVN_BASE + 1, 0), 0x7b, byte); |
| |
| /* LPC Positive Decode 0 */ |
| dword = pci_read_config32(PCI_DEV(0, CK804_DEVN_BASE + 1, 0), 0xa0); |
| /* Serial 0, Serial 1 */ |
| dword |= (1 << 0) | (1 << 1); |
| pci_write_config32(PCI_DEV(0, CK804_DEVN_BASE + 1, 0), 0xa0, dword); |
| } |
| |
| void cache_as_ram_main(unsigned long bist, unsigned long cpu_init_detectedx) |
| { |
| static const u16 spd_addr[] = { |
| DIMM0, DIMM1, 0, 0, |
| 0, 0, 0, 0, |
| 0, 0, 0, 0, |
| 0, 0, 0, 0, |
| }; |
| |
| int needs_reset; |
| unsigned bsp_apicid = 0, nodes; |
| struct mem_controller ctrl[8]; |
| |
| if (!cpu_init_detectedx && boot_cpu()) { |
| /* Nothing special needs to be done to find bus 0 */ |
| /* Allow the HT devices to be found */ |
| enumerate_ht_chain(); |
| sio_setup(); |
| } |
| |
| if (bist == 0) |
| bsp_apicid = init_cpus(cpu_init_detectedx); |
| |
| winbond_enable_serial(SERIAL_DEV, CONFIG_TTYS0_BASE); |
| console_init(); |
| |
| /* Halt if there was a built in self test failure */ |
| report_bist_failure(bist); |
| |
| needs_reset = setup_coherent_ht_domain(); |
| |
| wait_all_core0_started(); |
| #if CONFIG_LOGICAL_CPUS |
| // It is said that we should start core1 after all core0 launched |
| start_other_cores(); |
| wait_all_other_cores_started(bsp_apicid); |
| #endif |
| |
| needs_reset |= ht_setup_chains_x(); |
| needs_reset |= ck804_early_setup_x(); |
| if (needs_reset) { |
| printk(BIOS_INFO, "ht reset -\n"); |
| soft_reset(); |
| } |
| |
| allow_all_aps_stop(bsp_apicid); |
| |
| nodes = get_nodes(); |
| //It's the time to set ctrl now; |
| fill_mem_ctrl(nodes, ctrl, spd_addr); |
| |
| enable_smbus(); |
| |
| ms7135_set_nf4_voltage(); |
| ms7135_set_ram_voltage(); |
| |
| #if CONFIG_DEBUG_SMBUS |
| dump_spd_registers(&ctrl[0]); |
| dump_smbus_registers(); |
| #endif |
| |
| sdram_initialize(nodes, ctrl); |
| |
| post_cache_as_ram(); |
| } |