src/mainboard/gigabyte/m57sli/cache_as_ram_auto.c

/*
 * This file is part of the coreboot project.
 *
 * Copyright (C) 2007 AMD
 * Written by Yinghai Lu <yinghailu@amd.com> for AMD.
 *
 * 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 __ROMCC__

#define RAMINIT_SYSINFO 1

#define K8_ALLOCATE_IO_RANGE 1
//#define K8_SCAN_PCI_BUS 1


#define QRANK_DIMM_SUPPORT 1

#if CONFIG_LOGICAL_CPUS==1
#define SET_NB_CFG_54 1
#endif

//used by init_cpus and fidvid
#define K8_SET_FIDVID 1
//if we want to wait for core1 done before DQS training, set it to 0
#define K8_SET_FIDVID_CORE0_ONLY 1

#if K8_REV_F_SUPPORT == 1
#define K8_REV_F_SUPPORT_F0_F1_WORKAROUND 0
#endif

#define DBGP_DEFAULT 7
 
#include <stdint.h>
#include <string.h>
#include <device/pci_def.h>
#include <device/pci_ids.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"

#if USE_FAILOVER_IMAGE==0
#include "pc80/serial.c"
#include "arch/i386/lib/console.c"
#if CONFIG_USBDEBUG_DIRECT
#include "southbridge/nvidia/mcp55/mcp55_enable_usbdebug_direct.c"
#include "pc80/usbdebug_direct_serial.c"
#endif
#include "ram/ramtest.c"

#include <cpu/amd/model_fxx_rev.h>

#include "southbridge/nvidia/mcp55/mcp55_early_smbus.c"
#include "northbridge/amd/amdk8/raminit.h"
#include "cpu/amd/model_fxx/apic_timer.c"
#include "lib/delay.c"

#endif

#include "cpu/x86/lapic/boot_cpu.c"
#include "northbridge/amd/amdk8/reset_test.c"
#include "superio/ite/it8716f/it8716f_early_serial.c"
#include "superio/ite/it8716f/it8716f_early_init.c"

#if USE_FAILOVER_IMAGE==0

#include "cpu/x86/bist.h"

#include "northbridge/amd/amdk8/debug.c"

#include "cpu/amd/mtrr/amd_earlymtrr.c"

#include "northbridge/amd/amdk8/setup_resource_map.c"

#define SERIAL_DEV PNP_DEV(0x2e, IT8716F_SP1)
#define GPIO_DEV PNP_DEV(0x2e, IT8716F_GPIO)

#include "southbridge/nvidia/mcp55/mcp55_early_ctrl.c"

static void memreset_setup(void)
{
}

static void memreset(int controllers, const struct mem_controller *ctrl)
{
}

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/amdk8_f.h"
#include "northbridge/amd/amdk8/coherent_ht.c"

#include "northbridge/amd/amdk8/incoherent_ht.c"

#include "northbridge/amd/amdk8/raminit_f.c"

#include "sdram/generic_sdram.c"

#include "resourcemap.c" 

#include "cpu/amd/dualcore/dualcore.c"

#define MCP55_NUM 1
#define MCP55_USE_NIC 1
#define MCP55_USE_AZA 1

#define MCP55_PCI_E_X_0 0

#define MCP55_MB_SETUP \
        RES_PORT_IO_8, SYSCTRL_IO_BASE + 0xc0+37, 0x00, 0x68,/* GPIO38 PCI_REQ3 */ \
        RES_PORT_IO_8, SYSCTRL_IO_BASE + 0xc0+38, 0x00, 0x68,/* GPIO39 PCI_GNT3 */ \
        RES_PORT_IO_8, SYSCTRL_IO_BASE + 0xc0+39, 0x00, 0x68,/* GPIO40 PCI_GNT2 */ \
        RES_PORT_IO_8, SYSCTRL_IO_BASE + 0xc0+40, 0x00, 0x68,/* GPIO41 PCI_REQ2 */ \
        RES_PORT_IO_8, SYSCTRL_IO_BASE + 0xc0+59, 0x00, 0x60,/* GPIP60 FANCTL0 */ \
        RES_PORT_IO_8, SYSCTRL_IO_BASE + 0xc0+60, 0x00, 0x60,/* GPIO61 FANCTL1 */

#include "southbridge/nvidia/mcp55/mcp55_early_setup_ss.h"
#include "southbridge/nvidia/mcp55/mcp55_early_setup_car.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"

#include "cpu/amd/model_fxx/fidvid.c"

#endif

#if ((HAVE_FAILOVER_BOOT==1) && (USE_FAILOVER_IMAGE == 1)) || ((HAVE_FAILOVER_BOOT==0) && (USE_FALLBACK_IMAGE == 1))

#include "southbridge/nvidia/mcp55/mcp55_enable_rom.c"
#include "northbridge/amd/amdk8/early_ht.c"


static void sio_setup(void)
{

        unsigned value;
        uint32_t dword;
        uint8_t byte;

        byte = pci_read_config8(PCI_DEV(0, MCP55_DEVN_BASE+1 , 0), 0x7b);
        byte |= 0x20; 
        pci_write_config8(PCI_DEV(0, MCP55_DEVN_BASE+1 , 0), 0x7b, byte);
        
        dword = pci_read_config32(PCI_DEV(0, MCP55_DEVN_BASE+1 , 0), 0xa0);
        dword |= (1<<0);
        pci_write_config32(PCI_DEV(0, MCP55_DEVN_BASE+1 , 0), 0xa0, dword);
        
        dword = pci_read_config32(PCI_DEV(0, MCP55_DEVN_BASE+1 , 0), 0xa4);
        dword |= (1<<16);
        pci_write_config32(PCI_DEV(0, MCP55_DEVN_BASE+1 , 0), 0xa4, 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 mcp55 */
        mcp55_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 HAVE_FAILOVER_BOOT==1
        __asm__ volatile ("jmp __fallback_image"
                : /* outputs */
                : "a" (bist), "b" (cpu_init_detectedx) /* inputs */
                )
#endif
	;
}
#endif
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 HAVE_FAILOVER_BOOT==1 
    #if USE_FAILOVER_IMAGE==1
	failover_process(bist, cpu_init_detectedx);	
    #else
	real_main(bist, cpu_init_detectedx);
    #endif
#else
    #if USE_FALLBACK_IMAGE == 1
	failover_process(bist, cpu_init_detectedx);	
    #endif
	real_main(bist, cpu_init_detectedx);
#endif
}

#if 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
	};

        struct sys_info *sysinfo = (DCACHE_RAM_BASE + DCACHE_RAM_SIZE - DCACHE_RAM_GLOBAL_VAR_SIZE);

        int needs_reset = 0;
        unsigned bsp_apicid = 0;
	uint8_t tmp = 0;

        if (bist == 0) {
		bsp_apicid = init_cpus(cpu_init_detectedx, sysinfo);
        }

	pnp_enter_ext_func_mode(SERIAL_DEV);
	/* The following line will set CLKIN to 24 MHz, external */
	pnp_write_config(SERIAL_DEV, IT8716F_CONFIG_REG_CLOCKSEL, 0x11);
	tmp = pnp_read_config(SERIAL_DEV, IT8716F_CONFIG_REG_SWSUSP);
	/* Is serial flash enabled? Then enable writing to serial flash. */
	if (tmp & 0x0e) {
		pnp_write_config(SERIAL_DEV, IT8716F_CONFIG_REG_SWSUSP, tmp | 0x10);
		pnp_set_logical_device(GPIO_DEV);
		/* Set Serial Flash interface to 0x0820 */
		pnp_write_config(GPIO_DEV, 0x64, 0x08);
		pnp_write_config(GPIO_DEV, 0x65, 0x20);
		/* We can get away with not resetting the logical device because
		 * it8716f_enable_dev(SERIAL_DEV, TTYS0_BASE) will do that.
		 */
	}
 	it8716f_enable_dev(SERIAL_DEV, TTYS0_BASE);
	pnp_exit_ext_func_mode(SERIAL_DEV);

        setup_mb_resource_map();

        uart_init();
	
	/* Halt if there was a built in self test failure */
	report_bist_failure(bist);


#if CONFIG_USBDEBUG_DIRECT
	mcp55_enable_usbdebug_direct(DBGP_DEFAULT);
	early_usbdebug_direct_init();
#endif
        console_init();
        print_debug("*sysinfo range: ["); print_debug_hex32(sysinfo); print_debug(",");  print_debug_hex32((unsigned long)sysinfo+sizeof(struct sys_info)); print_debug(")\r\n");

        print_debug("bsp_apicid="); print_debug_hex8(bsp_apicid); print_debug("\r\n");

#if MEM_TRAIN_SEQ == 1
        set_sysinfo_in_ram(0); // in BSP so could hold all ap until sysinfo is in ram
#endif
        setup_coherent_ht_domain(); // routing table and start other core0

        wait_all_core0_started();
#if CONFIG_LOGICAL_CPUS==1
        // It is said that we should start core1 after all core0 launched
        /* becase optimize_link_coherent_ht is moved out from setup_coherent_ht_domain,
         * So here need to make sure last core0 is started, esp for two way system,
         * (there may be apic id conflicts in that case)
         */
        start_other_cores();
        wait_all_other_cores_started(bsp_apicid);
#endif

        /* it will set up chains and store link pair for optimization later */
        ht_setup_chains_x(sysinfo); // it will init sblnk and sbbusn, nodes, sbdn

#if K8_SET_FIDVID == 1

        {
                msr_t msr;
                msr=rdmsr(0xc0010042);
                print_debug("begin msr fid, vid "); print_debug_hex32( msr.hi ); print_debug_hex32(msr.lo); print_debug("\r\n");

        }

        enable_fid_change();

        enable_fid_change_on_sb(sysinfo->sbbusn, sysinfo->sbdn);

        init_fidvid_bsp(bsp_apicid);

        // show final fid and vid
        {
                msr_t msr;
                msr=rdmsr(0xc0010042);
                print_debug("end   msr fid, vid "); print_debug_hex32( msr.hi ); print_debug_hex32(msr.lo); print_debug("\r\n");

        }
#endif

        needs_reset |= optimize_link_coherent_ht();
        needs_reset |= optimize_link_incoherent_ht(sysinfo);
        needs_reset |= mcp55_early_setup_x();

        // fidvid change will issue one LDTSTOP and the HT change will be effective too
        if (needs_reset) {
                print_info("ht reset -\r\n");
              	soft_reset();
        }
        allow_all_aps_stop(bsp_apicid);

        //It's the time to set ctrl in sysinfo now;
	fill_mem_ctrl(sysinfo->nodes, sysinfo->ctrl, spd_addr);

        enable_smbus(); 

        memreset_setup();

        //do we need apci timer, tsc...., only debug need it for better output
        /* all ap stopped? */
//        init_timer(); // Need to use TMICT to synconize FID/VID

        sdram_initialize(sysinfo->nodes, sysinfo->ctrl, sysinfo);

        post_cache_as_ram(); // bsp swtich stack to ram and copy sysinfo ram now

}


#endif