#define ASSEMBLY 1 #include #include #include #include #include #include #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/NSC/pc87360/pc87360_early_serial.c" #define SERIAL_DEV PNP_DEV(0x2e, PC87360_SP1) static void hard_reset(void) { set_bios_reset(); /* enable cf9 */ pci_write_config8(PCI_DEV(0, 0x05, 3), 0x41, 0xf1); /* reset */ outb(0x0e, 0x0cf9); } static void soft_reset(void) { set_bios_reset(); pci_write_config8(PCI_DEV(0, 0x05, 0), 0x47, 1); } static void memreset_setup(void) { if (is_cpu_pre_c0()) { /* Set the memreset low */ outb((0 << 7) | (0 << 6) | (0 << 5) | (0 << 4) | (1 << 2) | (0 << 0), SMBUS_IO_BASE + 0xc0 + 28); /* Ensure the BIOS has control of the memory lines */ outb((0 << 7) | (0 << 6) | (0 << 5) | (0 << 4) | (1 << 2) | (0 << 0), SMBUS_IO_BASE + 0xc0 + 29); } else { /* Ensure the CPU has controll of the memory lines */ outb((0 << 7) | (0 << 6) | (0 << 5) | (0 << 4) | (1 << 2) | (1 << 0), SMBUS_IO_BASE + 0xc0 + 29); } } static void memreset(int controllers, const struct mem_controller *ctrl) { if (is_cpu_pre_c0()) { udelay(800); /* Set memreset_high */ outb((0 << 7) | (0 << 6) | (0 << 5) | (0 << 4) | (1 << 2) | (1 << 0), SMBUS_IO_BASE + 0xc0 + 28); udelay(90); } } static unsigned int generate_row(uint8_t node, uint8_t row, uint8_t maxnodes) { /* since the AMD Solo is a UP only machine, we can * always return the default row entry value */ return 0x00010101; /* default row entry */ } 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" static void main(void) { static const struct mem_controller 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) | 1, 0, 0}, .channel1 = {0, 0, 0, 0}, } }; int needs_reset; enable_lapic(); init_timer(); if (cpu_init_detected()) { asm("jmp __cpu_reset"); } distinguish_cpu_resets(); if (!boot_cpu()) { print_err("This LinuxBIOS image is built for UP only.\n"); stop_this_cpu(); } pc87360_enable_serial(SERIAL_DEV, TTYS0_BASE); uart_init(); console_init(); setup_default_resource_map(); needs_reset = setup_coherent_ht_domain(); needs_reset |= ht_setup_chain(PCI_DEV(0, 0x18, 0), 0x80); if (needs_reset) { print_info("ht reset -\r\n"); soft_reset(); } #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(); #endif #if 0 dump_pci_device(PCI_DEV(0, 0x18, 2)); #endif /* Check the first 1M */ ram_check(0x00000000, 0x000100000); }