| /* |
| * This file is part of the coreboot project. |
| * |
| * Copyright (C) 2011 Kyösti Mälkki <kyosti.malkki@gmail.com> |
| * |
| * 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 <stdint.h> |
| #include <device/pci_def.h> |
| #include <arch/io.h> |
| #include <arch/cpu.h> |
| #include <stdlib.h> |
| #include <cbmem.h> |
| #include <console/console.h> |
| #include <cpu/x86/bist.h> |
| #include <cpu/intel/romstage.h> |
| #include <timestamp.h> |
| |
| #include <southbridge/intel/i82801dx/i82801dx.h> |
| #include <northbridge/intel/e7505/raminit.h> |
| |
| #include <device/pnp_def.h> |
| #include <superio/smsc/lpc47m10x/lpc47m10x.h> |
| |
| #define SERIAL_DEV PNP_DEV(0x2e, LPC47M10X2_SP1) |
| |
| int spd_read_byte(unsigned device, unsigned address) |
| { |
| return smbus_read_byte(device, address); |
| } |
| |
| void mainboard_romstage_entry(unsigned long bist) |
| { |
| static const struct mem_controller memctrl[] = { |
| { |
| .d0 = PCI_DEV(0, 0, 0), |
| .d0f1 = PCI_DEV(0, 0, 1), |
| .channel0 = { 0x50, 0x52, 0, 0 }, |
| .channel1 = { 0x51, 0x53, 0, 0 }, |
| }, |
| }; |
| |
| timestamp_init(timestamp_get()); |
| timestamp_add_now(TS_START_ROMSTAGE); |
| |
| /* Get the serial port running and print a welcome banner */ |
| lpc47m10x_enable_serial(SERIAL_DEV, CONFIG_TTYS0_BASE); |
| console_init(); |
| |
| /* Halt if there was a built in self test failure */ |
| report_bist_failure(bist); |
| |
| /* If this is a warm boot, some initialization can be skipped */ |
| if (!e7505_mch_is_ready()) { |
| enable_smbus(); |
| |
| timestamp_add_now(TS_BEFORE_INITRAM); |
| |
| /* The real MCH initialisation. */ |
| e7505_mch_init(memctrl); |
| |
| /* |
| * ECC scrub invalidates cache, so all stack in CAR |
| * is lost. Only return addresses from main() and |
| * scrub_ecc() are recovered to stack via xmm0-xmm3. |
| */ |
| #if IS_ENABLED(CONFIG_HW_SCRUBBER) |
| #if !IS_ENABLED(CONFIG_USBDEBUG_IN_ROMSTAGE) |
| unsigned long ret_addr = (unsigned long)((unsigned long*)&bist - 1); |
| e7505_mch_scrub_ecc(ret_addr); |
| #endif |
| #endif |
| |
| /* Hook for post ECC scrub settings and debug. */ |
| e7505_mch_done(memctrl); |
| |
| timestamp_add_now(TS_AFTER_INITRAM); |
| } |
| |
| printk(BIOS_DEBUG, "SDRAM is up.\n"); |
| |
| cbmem_recovery(0); |
| } |