diff options
Diffstat (limited to 'src/mainboard/asus/a8n_e/romstage.c')
| -rw-r--r-- | src/mainboard/asus/a8n_e/romstage.c | 269 |
1 files changed, 269 insertions, 0 deletions
diff --git a/src/mainboard/asus/a8n_e/romstage.c b/src/mainboard/asus/a8n_e/romstage.c new file mode 100644 index 000000000000..8e0ba2925ecc --- /dev/null +++ b/src/mainboard/asus/a8n_e/romstage.c @@ -0,0 +1,269 @@ +/* + * 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) + * + * 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. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#define ASSEMBLY 1 +#define __PRE_RAM__ + +/* Used by it8712f_enable_serial(). */ +#define SERIAL_DEV PNP_DEV(0x2e, IT8712F_SP1) + +/* Used by raminit. */ +#define QRANK_DIMM_SUPPORT 1 + +/* Turn this on for SMBus debugging output. */ +#define DEBUG_SMBUS 0 + +#if CONFIG_LOGICAL_CPUS == 1 +#define SET_NB_CFG_54 1 +#endif + +#include <stdint.h> +#include <string.h> +#include <device/pci_def.h> +#include <arch/io.h> +#include <device/pnp_def.h> +#include <arch/romcc_io.h> +#include <cpu/x86/lapic.h> +#include "option_table.h" +#include "pc80/mc146818rtc_early.c" +#include "cpu/x86/lapic/boot_cpu.c" +#include "northbridge/amd/amdk8/reset_test.c" +#include "superio/ite/it8712f/it8712f_early_serial.c" + +#if CONFIG_USE_FAILOVER_IMAGE == 0 + +/* Used by ck894_early_setup(). */ +#define CK804_NUM 1 + +#include <cpu/amd/model_fxx_rev.h> +#include "pc80/serial.c" +#include "arch/i386/lib/console.c" +#include "lib/ramtest.c" +#include "northbridge/amd/amdk8/incoherent_ht.c" +#include "southbridge/nvidia/ck804/ck804_early_smbus.c" +#include "northbridge/amd/amdk8/raminit.h" +#include "cpu/amd/model_fxx/apic_timer.c" +#include "lib/delay.c" +#include "northbridge/amd/amdk8/debug.c" +#include "cpu/amd/mtrr/amd_earlymtrr.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" + +static void memreset_setup(void) +{ + /* Nothing to do. */ +} + +static void memreset(int controllers, const struct mem_controller *ctrl) +{ + /* Nothing to do. */ +} + +static inline void activate_spd_rom(const struct mem_controller *ctrl) +{ + /* Nothing to do. */ +} + +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/ck804_early_setup_ss.h" +#include "southbridge/nvidia/ck804/ck804_early_setup.c" +#include "cpu/amd/car/copy_and_run.c" +#include "cpu/amd/car/post_cache_as_ram.c" +#include "cpu/amd/model_fxx/init_cpus.c" + +#endif /* CONFIG_USE_FAILOVER_IMAGE */ + +#if ((CONFIG_HAVE_FAILOVER_BOOT==1) && (CONFIG_USE_FAILOVER_IMAGE == 1)) \ + || ((CONFIG_HAVE_FAILOVER_BOOT==0) && (CONFIG_USE_FALLBACK_IMAGE == 1)) + +#include "southbridge/nvidia/ck804/ck804_enable_rom.c" +#include "northbridge/amd/amdk8/early_ht.c" + +static void sio_setup(void) +{ + unsigned value; + uint32_t dword; + uint8_t 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); + dword |= (1 << 0) | (1 << 1); /* Serial 0, Serial 1 */ + pci_write_config32(PCI_DEV(0, CK804_DEVN_BASE + 1, 0), 0xa0, dword); +} + +void failover_process(unsigned long bist, unsigned long cpu_init_detectedx) +{ + unsigned last_boot_normal_x = last_boot_normal(); + + /* Is this a CPU only reset? Or is this a secondary CPU? */ + if ((cpu_init_detectedx) || (!boot_cpu())) { + if (last_boot_normal_x) { + goto normal_image; + } else { + goto fallback_image; + } + } + + /* Nothing special needs to be done to find bus 0 */ + /* Allow the HT devices to be found */ + enumerate_ht_chain(); + + sio_setup(); + + /* Setup the ck804 */ + ck804_enable_rom(); + + /* Is this a deliberate reset by the BIOS? */ + if (bios_reset_detected() && last_boot_normal_x) { + goto normal_image; + } + + /* This is the primary CPU. How should I boot? */ + else if (do_normal_boot()) { + goto normal_image; + } else { + goto fallback_image; + } + +normal_image: + __asm__ volatile ("jmp __normal_image" + : /* outputs */ + :"a" (bist), "b"(cpu_init_detectedx) /* inputs */ + ); + +fallback_image: + +#if CONFIG_HAVE_FAILOVER_BOOT == 1 + __asm__ volatile ("jmp __fallback_image" + : /* outputs */ + :"a" (bist), "b"(cpu_init_detectedx) /* inputs */ + ) +#endif + ; +} + +#endif /* ((CONFIG_HAVE_FAILOVER_BOOT==1) && (CONFIG_USE_FAILOVER_IMAGE == 1)) ... */ + +void real_main(unsigned long bist, unsigned long cpu_init_detectedx); + +void cache_as_ram_main(unsigned long bist, unsigned long cpu_init_detectedx) +{ +#if CONFIG_HAVE_FAILOVER_BOOT == 1 +#if CONFIG_USE_FAILOVER_IMAGE == 1 + failover_process(bist, cpu_init_detectedx); +#else + real_main(bist, cpu_init_detectedx); +#endif +#else +#if CONFIG_USE_FALLBACK_IMAGE == 1 + failover_process(bist, cpu_init_detectedx); +#endif + real_main(bist, cpu_init_detectedx); +#endif +} + +#if CONFIG_USE_FAILOVER_IMAGE == 0 +void real_main(unsigned long bist, unsigned long cpu_init_detectedx) +{ + static const uint16_t spd_addr[] = { + (0xa << 3) | 0, (0xa << 3) | 2, 0, 0, + (0xa << 3) | 1, (0xa << 3) | 3, 0, 0, +#if CONFIG_MAX_PHYSICAL_CPUS > 1 + (0xa << 3) | 4, (0xa << 3) | 6, 0, 0, + (0xa << 3) | 5, (0xa << 3) | 7, 0, 0, +#endif + }; + + int needs_reset; + unsigned nodes, bsp_apicid = 0; + struct mem_controller ctrl[8]; + + if (bist == 0) + bsp_apicid = init_cpus(cpu_init_detectedx); + + it8712f_24mhz_clkin(); + it8712f_enable_serial(SERIAL_DEV, CONFIG_TTYS0_BASE); + uart_init(); + console_init(); + + /* Halt if there was a built in self test failure */ + report_bist_failure(bist); + +#if 0 + dump_pci_device(PCI_DEV(0, 0x18, 0)); +#endif + + needs_reset = setup_coherent_ht_domain(); + + wait_all_core0_started(); +#if CONFIG_LOGICAL_CPUS==1 + /* 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) { + print_info("ht reset -\r\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(); + +#if 0 + dump_spd_registers(&ctrl[0]); + dump_smbus_registers(); +#endif + + memreset_setup(); + sdram_initialize(nodes, ctrl); + +#if 0 + print_pci_devices(); + dump_pci_devices(); +#endif + + post_cache_as_ram(); +} +#endif /* CONFIG_USE_FAILOVER_IMAGE */ |