diff options
Diffstat (limited to 'src/mainboard/tyan/s8226/romstage.c')
-rw-r--r-- | src/mainboard/tyan/s8226/romstage.c | 148 |
1 files changed, 148 insertions, 0 deletions
diff --git a/src/mainboard/tyan/s8226/romstage.c b/src/mainboard/tyan/s8226/romstage.c new file mode 100644 index 0000000000..7076eed915 --- /dev/null +++ b/src/mainboard/tyan/s8226/romstage.c @@ -0,0 +1,148 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2011 - 2012 Advanced Micro Devices, Inc. + * + * 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. + * + * 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 + */ + +#include <lib.h> +#include <reset.h> +#include <stdint.h> +#include <arch/io.h> +#include <arch/romcc_io.h> +#include <arch/cpu.h> +#include <console/console.h> +#include <arch/stages.h> +#include "cpu/x86/bist.h" +#include "cpu/x86/lapic/boot_cpu.c" +#include "agesawrapper.h" +#include "northbridge/amd/agesa/family10/reset_test.h" +#include <nb_cimx.h> +#include <sb_cimx.h> +#include "superio/nuvoton/wpcm450/wpcm450.h" +#include "superio/winbond/w83627dhg/w83627dhg.h" +#include "src/drivers/pc80/i8254.c" +#include "src/drivers/pc80/i8259.c" +#include <cpu/x86/cache.h> + +extern void disable_cache_as_ram(void); /* cache_as_ram.inc */ + +#define SERIAL_DEV PNP_DEV(0x2e, W83627DHG_SP1) +#define DUMMY_DEV PNP_DEV(0x2e, 0) + +void cache_as_ram_main(unsigned long bist, unsigned long cpu_init_detectedx) +{ + u32 val; + + post_code(0x30); + agesawrapper_amdinitmmio(); + post_code(0x31); + + /* Halt if there was a built in self test failure */ + post_code(0x33); + report_bist_failure(bist); + + sb7xx_51xx_enable_wideio(0, 0x1600); /* though UARTs are on the NUVOTON BMC */ + w83627dhg_set_clksel_48(DUMMY_DEV); + w83627dhg_enable_serial(SERIAL_DEV, CONFIG_TTYS0_BASE); + sb7xx_51xx_disable_wideio(0); + post_code(0x34); + + uart_init(); + post_code(0x35); + console_init(); + + val = cpuid_eax(1); + printk(BIOS_DEBUG, "BSP Family_Model: %08x \n", val); + printk(BIOS_DEBUG, "cpu_init_detectedx = %08lx \n", cpu_init_detectedx); + + post_code(0x37); + val = agesawrapper_amdinitreset(); + if (val) { + printk(BIOS_DEBUG, "agesawrapper_amdinitreset failed: %x \n", val); + } else { + printk(BIOS_DEBUG, "agesawrapper_amdinitreset passed\n"); + } + + if (!cpu_init_detectedx && boot_cpu()) { + post_code(0x38); + /* + * SR5650/5670/5690 RD890 chipset, read pci config space hang at POR, + * Disable all Pcie Bridges to work around It. + */ + sr56x0_rd890_disable_pcie_bridge(); + post_code(0x39); + nb_Poweron_Init(); + post_code(0x3A); + sb_Poweron_Init(); + } + post_code(0x3B); + val = agesawrapper_amdinitearly(); + if(val) { + printk(BIOS_DEBUG, "agesawrapper_amdinitearly failed: %x \n", val); + } else { + printk(BIOS_DEBUG, "agesawrapper_amdinitearly passed\n"); + } + + post_code(0x3C); + /* W83627DHG pin89,90 function select is RSTOUT3#, RSTOUT2# by default. + * In order to access W83795G/ADG HWM using I2C protocol, + * we select function to SDA, SCL function (or GP33, GP32 function). + */ + w83627dhg_enable_i2c(PNP_DEV(0x2E, W83627DHG_SPI)); + + nb_Ht_Init(); + post_code(0x3D); + /* Reset for HT, FIDVID, PLL and ucode patch(errata) changes to take affect. */ + if (!warm_reset_detect(0)) { + print_info("...WARM RESET...\n\n\n"); + distinguish_cpu_resets(0); + soft_reset(); + die("After soft_reset_x - shouldn't see this message!!!\n"); + } + + post_code(0x40); + val = agesawrapper_amdinitpost(); + if (val) { + printk(BIOS_DEBUG, "agesawrapper_amdinitpost failed: %x \n", val); + } else { + printk(BIOS_DEBUG, "agesawrapper_amdinitpost passed\n"); + } + + post_code(0x41); + val = agesawrapper_amdinitenv(); + if(val) { + printk(BIOS_DEBUG, "agesawrapper_amdinitenv failed: %x \n", val); + } + printk(BIOS_DEBUG, "agesawrapper_amdinitenv passed\n"); + + post_code(0x42); + + post_code(0x50); + print_debug("Disabling cache as ram "); + disable_cache_as_ram(); + enable_cache(); + print_debug("done\n"); + + post_code(0x51); + setup_i8259 (); + setup_i8254 (); + copy_and_run(0); + + /* We will not return, Should never see this message and post code. */ + print_debug("should not be here -\n"); + post_code(0x54); +} + |