src/mainboard/tyan/s2885/auto.c

#define ASSEMBLY 1 
#include <stdint.h>
#include <device/pci_def.h>
#include <arch/io.h>
#include <device/pnp_def.h>
#include <arch/romcc_io.h>
#include <arch/smp/lapic.h>
#include "option_table.h"
#include "pc80/mc146818rtc_early.c"
#include "pc80/serial.c"
#include "arch/i386/lib/console.c"
#include "ram/ramtest.c"
#include "northbridge/amd/amdk8/incoherent_ht.c"
#include "southbridge/amd/amd8111/amd8111_early_smbus.c"
#include "northbridge/amd/amdk8/raminit.h"
#include "cpu/k8/apic_timer.c"
#include "lib/delay.c"
#include "cpu/p6/boot_cpu.c"
#include "northbridge/amd/amdk8/reset_test.c"
#include "northbridge/amd/amdk8/debug.c"
#include "northbridge/amd/amdk8/cpu_rev.c"
#include "superio/winbond/w83627hf/w83627hf_early_serial.c"

#define SERIAL_DEV PNP_DEV(0x2e, W83627HF_SP1)

static void hard_reset(void)
{
        set_bios_reset();

        /* enable cf9 */
        pci_write_config8(PCI_DEV(0, 0x04, 3), 0x41, 0xf1);
        /* reset */
        outb(0x0e, 0x0cf9);
}

static void soft_reset(void)
{
        set_bios_reset();
        pci_write_config8(PCI_DEV(0, 0x04, 0), 0x47, 1);
}

static void memreset_setup(void)
{
	if (is_cpu_pre_c0()) {
		outb((0 << 7)|(0 << 6)|(0<<5)|(0<<4)|(1<<2)|(0<<0), SMBUS_IO_BASE + 0xc0 + 17);
		outb((0 << 7)|(0 << 6)|(0<<5)|(0<<4)|(1<<2)|(0<<0), SMBUS_IO_BASE + 0xc0 + 16);  //REVC_MEMRST_EN=0
	} else {
		outb((0 << 7)|(0 << 6)|(0<<5)|(0<<4)|(1<<2)|(1<<0), SMBUS_IO_BASE + 0xc0 + 16);  //REVC_MEMRST_EN=1
	}
}

static void memreset(int controllers, const struct mem_controller *ctrl)
{
	if (is_cpu_pre_c0()) {
		udelay(800);
		outb((0<<7)|(0<<6)|(0<<5)|(0<<4)|(1<<2)|(1<<0), SMBUS_IO_BASE + 0xc0 + 17); //REVB_MEMRST_L=1
		udelay(90);
	}
}

static unsigned int generate_row(uint8_t node, uint8_t row, uint8_t maxnodes)
{
	/* Routing Table Node i 
	 *
	 * F0: 0x40, 0x44, 0x48, 0x4c, 0x50, 0x54, 0x58, 0x5c 
	 *  i:    0,    1,    2,    3,    4,    5,    6,    7
	 *
	 * [ 0: 3] Request Route
	 *     [0] Route to this node
	 *     [1] Route to Link 0
	 *     [2] Route to Link 1
	 *     [3] Route to Link 2
	 * [11: 8] Response Route
	 *     [0] Route to this node
	 *     [1] Route to Link 0
	 *     [2] Route to Link 1
	 *     [3] Route to Link 2
	 * [19:16] Broadcast route
	 *     [0] Route to this node
	 *     [1] Route to Link 0
	 *     [2] Route to Link 1
	 *     [3] Route to Link 2
	 */

	uint32_t ret = 0x00010101; /* default row entry */

	static const unsigned int rows_2p[2][2] = {
		{ 0x00050101, 0x00010404 },
		{ 0x00010404, 0x00050101 }
	};

	if (maxnodes > 2) {
		print_debug("this mainboard is only designed for 2 cpus\r\n");
		maxnodes = 2;
	}

	if (!(node >= maxnodes || row >= maxnodes)) {
		ret = rows_2p[node][row];
	}

	return ret;
}

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/raminit.c"
#include "northbridge/amd/amdk8/coherent_ht.c"
#include "sdram/generic_sdram.c"

#include "resourcemap.c" /* tyan does not want the default */

#define FIRST_CPU  1
#define SECOND_CPU 1
#define TOTAL_CPUS (FIRST_CPU + SECOND_CPU)
static void main(void)
{
	static const struct mem_controller cpu[] = {
#if FIRST_CPU
		{
			.node_id = 0,
			.f0 = PCI_DEV(0, 0x18, 0),
			.f1 = PCI_DEV(0, 0x18, 1),
			.f2 = PCI_DEV(0, 0x18, 2),
			.f3 = PCI_DEV(0, 0x18, 3),
			.channel0 = { (0xa<<3)|0, (0xa<<3)|2, 0, 0 },
			.channel1 = { (0xa<<3)|1, (0xa<<3)|3, 0, 0 },
		},
#endif
#if SECOND_CPU
		{
			.node_id = 1,
			.f0 = PCI_DEV(0, 0x19, 0),
			.f1 = PCI_DEV(0, 0x19, 1),
			.f2 = PCI_DEV(0, 0x19, 2),
			.f3 = PCI_DEV(0, 0x19, 3),
			.channel0 = { (0xa<<3)|4, (0xa<<3)|6, 0, 0 },
			.channel1 = { (0xa<<3)|5, (0xa<<3)|7, 0, 0 },
		},
#endif
	};

        static const struct ht_chain ht_c[] = {
                {
                        .udev = PCI_DEV(0, 0x18, 0),
                        .upos = 0xc0,
                        .devreg = 0xe0,
                }, 
                {
                        .udev = PCI_DEV(0, 0x18, 0),
                        .upos = 0x80,
                        .devreg = 0xe4,
                },
        };
        int needs_reset;

        enable_lapic();
        init_timer();

        if (cpu_init_detected()) {
                asm("jmp __cpu_reset");
        }

        distinguish_cpu_resets();
        if (!boot_cpu()) {
                stop_this_cpu();
        }

        w83627hf_enable_serial(SERIAL_DEV, TTYS0_BASE);
        uart_init();
        console_init();

        setup_s2885_resource_map();
        needs_reset = setup_coherent_ht_domain();
//        needs_reset |= ht_setup_chain(PCI_DEV(0, 0x18, 0), 0xc0);
        needs_reset |= ht_setup_chains(ht_c, sizeof(ht_c)/sizeof(ht_c[0]));
        if (needs_reset) {
                print_info("ht reset -\r\n");
                soft_reset();
        }
#if 0
        dump_pci_devices();
#endif


#if 0
	print_pci_devices();
#endif

	enable_smbus();

#if 0
	dump_spd_registers(&cpu[0]);
#endif

	memreset_setup();
	sdram_initialize(sizeof(cpu)/sizeof(cpu[0]), cpu);

#if 0
	dump_pci_devices();
	dump_pci_device(PCI_DEV(0, 0x18, 1));
#endif

	/* Check all of memory */
#if 0
	msr_t msr;
	msr = rdmsr(TOP_MEM2);
	print_debug("TOP_MEM2: ");
	print_debug_hex32(msr.hi);
	print_debug_hex32(msr.lo);
	print_debug("\r\n");
	ram_check(0x00000000, msr.lo+(msr.hi<<32));
#if TOTAL_CPUS < 2
	// Check 16MB of memory @ 0
	ram_check(0x00000000, 0x00100000);
#else
	// Check 16MB of memory @ 2GB 
	ram_check(0x80000000, 0x80100000);
#endif
#endif
}