diff options
Diffstat (limited to 'src/mainboard/msi/ms7721/romstage.c')
-rw-r--r-- | src/mainboard/msi/ms7721/romstage.c | 146 |
1 files changed, 146 insertions, 0 deletions
diff --git a/src/mainboard/msi/ms7721/romstage.c b/src/mainboard/msi/ms7721/romstage.c new file mode 100644 index 0000000000..0c30439d0f --- /dev/null +++ b/src/mainboard/msi/ms7721/romstage.c @@ -0,0 +1,146 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2012 Advanced Micro Devices, Inc. + * Copyright (C) 2012 Rudolf Marek <r.marek@assembler.cz> + * + * 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 <northbridge/amd/agesa/agesawrapper.h> + +#include <arch/acpi.h> +#include <arch/cpu.h> +#include <arch/io.h> +#include <arch/stages.h> +#include <cbmem.h> +#include <console/console.h> +#include <cpu/amd/agesa/s3_resume.h> +#include <cpu/amd/car.h> +#include <cpu/x86/bist.h> +#include <cpu/x86/lapic.h> +#include <device/pci_def.h> +#include <device/pci_ids.h> +#include <device/pnp_def.h> +#include <southbridge/amd/agesa/hudson/hudson.h> +#include <southbridge/amd/agesa/hudson/smbus.h> +#include <stdint.h> +#include <string.h> +#include <superio/ite/common/ite.h> +#include <superio/ite/it8728f/it8728f.h> + +#define MMIO_NON_POSTED_START 0xfed00000 +#define MMIO_NON_POSTED_END 0xfedfffff +#define SB_MMIO 0xFED80000 +#define SB_MMIO_MISC32(x) *(volatile u32 *)(SB_MMIO + 0xE00 + (x)) + +#define SERIAL_DEV PNP_DEV(0x2e, IT8728F_SP1) +#define GPIO_DEV PNP_DEV(0x2e, IT8728F_GPIO) + +static void sbxxx_enable_48mhzout(void) +{ + /* most likely programming to 48MHz out signal */ + u32 reg32; + reg32 = SB_MMIO_MISC32(0x28); + reg32 &= 0xffc7ffff; + reg32 |= 0x00100000; + SB_MMIO_MISC32(0x28) = reg32; + + reg32 = SB_MMIO_MISC32(0x40); + reg32 &= ~0x80u; + SB_MMIO_MISC32(0x40) = reg32; +} + +void cache_as_ram_main(unsigned long bist, unsigned long cpu_init_detectedx) +{ + u32 val; + u8 byte; + pci_devfn_t dev; + +#if IS_ENABLED(CONFIG_POST_DEVICE_PCI_PCIE) + hudson_pci_port80(); +#endif +#if IS_ENABLED(CONFIG_POST_DEVICE_LPC) + hudson_lpc_port80(); +#endif + + amd_initmmio(); + + if (!cpu_init_detectedx && boot_cpu()) { + + /* enable SIO LPC decode */ + dev = PCI_DEV(0, 0x14, 3); + byte = pci_read_config8(dev, 0x48); + byte |= 3; /* 2e, 2f */ + pci_write_config8(dev, 0x48, byte); + + /* enable serial decode */ + byte = pci_read_config8(dev, 0x44); + byte |= (1 << 6); /* 0x3f8 */ + pci_write_config8(dev, 0x44, byte); + + post_code(0x30); + + /* enable SB MMIO space */ + outb(0x24, 0xcd6); + outb(0x1, 0xcd7); + + /* enable SIO clock */ + sbxxx_enable_48mhzout(); + ite_kill_watchdog(GPIO_DEV); + ite_enable_serial(SERIAL_DEV, CONFIG_TTYS0_BASE); + ite_enable_3vsbsw(GPIO_DEV); + console_init(); + + /* turn on secondary smbus at b20 */ + outb(0x28, 0xcd6); + byte = inb(0xcd7); + byte |= 1; + outb(byte, 0xcd7); + } + + /* Halt if there was a built in self test failure */ + post_code(0x34); + report_bist_failure(bist); + + /* Load MPB */ + 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); + agesawrapper_amdinitreset(); + post_code(0x39); + + agesawrapper_amdinitearly(); + int s3resume = acpi_is_wakeup_s3(); + if (!s3resume) { + post_code(0x40); + agesawrapper_amdinitpost(); + post_code(0x41); + agesawrapper_amdinitenv(); + disable_cache_as_ram(); + } else { /* S3 detect */ + printk(BIOS_INFO, "S3 detected\n"); + + post_code(0x60); + agesawrapper_amdinitresume(); + amd_initcpuio(); + agesawrapper_amds3laterestore(); + + post_code(0x61); + prepare_for_resume(); + } + + post_code(0x50); + copy_and_run(); + + post_code(0x54); /* Should never see this post code. */ +} |