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Diffstat (limited to 'src/mainboard/hp/abm/romstage.c')
-rw-r--r-- | src/mainboard/hp/abm/romstage.c | 142 |
1 files changed, 142 insertions, 0 deletions
diff --git a/src/mainboard/hp/abm/romstage.c b/src/mainboard/hp/abm/romstage.c new file mode 100644 index 0000000000..1ba1104eb0 --- /dev/null +++ b/src/mainboard/hp/abm/romstage.c @@ -0,0 +1,142 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 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 <stdint.h> +#include <string.h> +#include <device/pci_def.h> +#include <device/pci_ids.h> +#include <arch/acpi.h> +#include <arch/io.h> +#include <arch/stages.h> +#include <device/pnp_def.h> +#include <arch/cpu.h> +#include <cpu/x86/lapic.h> +#include <console/console.h> +#include <console/loglevel.h> +#include <cpu/amd/car.h> +#include <northbridge/amd/agesa/agesawrapper.h> +#include "cpu/x86/bist.h" +#include "cpu/x86/lapic.h" +#include "southbridge/amd/agesa/hudson/hudson.h" +#include "cpu/amd/agesa/s3_resume.h" +#include "cbmem.h" +#include <superio/winbond/common/winbond.h> +#include <superio/winbond/w83627uhg/w83627uhg.h> + +#define SERIAL_DEV PNP_DEV(0x2e, W83627UHG_SP1) + + +void cache_as_ram_main(unsigned long bist, unsigned long cpu_init_detectedx) +{ + u32 val, t32; + u32 *addr32; + + /* In Hudson RRG, PMIOxD2[5:4] is "Drive strength control for + * LpcClk[1:0]". To be consistent with Parmer, setting to 4mA + * even though the register is not documented in the Kabini BKDG. + * Otherwise the serial output is bad code. + */ + //outb(0xD2, 0xcd6); + //outb(0x00, 0xcd7); + + amd_initmmio(); + + /* Set LPC decode enables. */ + pci_devfn_t dev = PCI_DEV(0, 0x14, 3); + pci_write_config32(dev, 0x44, 0xff03ffd5); + + hudson_lpc_port80(); + + /* Enable the AcpiMmio space */ + outb(0x24, 0xcd6); + outb(0x1, 0xcd7); + + /* Set auxiliary output clock frequency on OSCOUT1 pin to be 48MHz */ + addr32 = (u32 *)0xfed80e28; + t32 = *addr32; + t32 &= 0xfff8ffff; + *addr32 = t32; + + /* Enable Auxiliary Clock1, disable FCH 14 MHz OscClk */ + addr32 = (u32 *)0xfed80e40; + t32 = *addr32; + t32 &= 0xffffbffb; + *addr32 = t32; + + if (!cpu_init_detectedx && boot_cpu()) { + post_code(0x30); + post_code(0x31); + + /* w83627uhg has a default clk of 48MHz, p.9 of data-sheet */ + winbond_enable_serial(SERIAL_DEV, CONFIG_TTYS0_BASE); + + console_init(); + } + + /* 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); + + /* On Larne, after LpcClkDrvSth is set, it needs some time to be stable, because of the buffer ICS551M */ + int i; + for(i = 0; i < 200000; i++) + val = inb(0xcd6); + + post_code(0x37); + agesawrapper_amdinitreset(); + post_code(0x38); + printk(BIOS_DEBUG, "Got past yangtze_early_setup\n"); + + post_code(0x39); + + agesawrapper_amdinitearly(); + int s3resume = acpi_is_wakeup_early() && acpi_s3_resume_allowed(); + if (!s3resume) { + post_code(0x40); + agesawrapper_amdinitpost(); + post_code(0x41); + agesawrapper_amdinitenv(); + /* TODO: Disable cache is not ok. */ + 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(); + } + + outb(0xEA, 0xCD6); + outb(0x1, 0xcd7); + + post_code(0x50); + copy_and_run(); + + post_code(0x54); /* Should never see this post code. */ +} |