#define ASSEMBLY 1 #include #include #include #include #include #include #include "pc80/serial.c" #include "arch/i386/lib/console.c" #include "ram/ramtest.c" #include "northbridge/via/vt8601/raminit.h" /* */ void udelay(int usecs) { int i; for(i = 0; i < usecs; i++) outb(i&0xff, 0x80); } #include "lib/delay.c" #include "cpu/p6/boot_cpu.c" #include "debug.c" #include "southbridge/via/vt8231/vt8231_early_smbus.c" #define MAXIMUM_CONSOLE_LOGLEVEL 9 #define DEFAULT_CONSOLE_LOGLEVEL 9 #include "southbridge/via/vt8231/vt8231_early_serial.c" static void memreset_setup(void) { } /* static void memreset(int controllers, const struct mem_controller *ctrl) { } */ static inline int spd_read_byte(unsigned device, unsigned address) { unsigned char c; c = smbus_read_byte(device, address); return c; } #include "northbridge/via/vt8601/raminit.c" /* #include "sdram/generic_sdram.c" */ static void enable_mainboard_devices(void) { device_t dev; /* dev 0 for southbridge */ dev = pci_locate_device(PCI_ID(0x1106,0x8231), 0); if (dev == PCI_DEV_INVALID) { die("Southbridge not found!!!\n"); } pci_write_config8(dev, 0x50, 7); pci_write_config8(dev, 0x51, 0xff); #if 0 // This early setup switches IDE into compatibility mode before PCI gets // // a chance to assign I/Os // movl $CONFIG_ADDR(0, 0x89, 0x42), %eax // // movb $0x09, %dl // movb $0x00, %dl // PCI_WRITE_CONFIG_BYTE // #endif /* we do this here as in V2, we can not yet do raw operations * to pci! */ dev++; /* ICKY */ pci_write_config8(dev, 0x42, 0); } static void enable_shadow_ram(void) { device_t dev = 0; /* no need to look up 0:0.0 */ unsigned char shadowreg; /* dev 0 for southbridge */ shadowreg = pci_read_config8(dev, 0x63); /* 0xf0000-0xfffff */ shadowreg |= 0x30; pci_write_config8(dev, 0x63, shadowreg); } static void main(void) { unsigned long x; /* init_timer();*/ outb(5, 0x80); enable_vt8231_serial(); enable_mainboard_devices(); uart_init(); console_init(); enable_smbus(); enable_shadow_ram(); /* memreset_setup(); this is way more generic than we need. sdram_initialize(sizeof(cpu)/sizeof(cpu[0]), cpu); */ sdram_set_registers((const struct mem_controller *) 0); /* Check all of memory */ #if 0 msr_t msr; msr = rdmsr(TOP_MEM); print_debug("TOP_MEM: "); print_debug_hex32(msr.hi); print_debug_hex32(msr.lo); print_debug("\r\n"); #endif #if 0 ram_check(0x00000000, msr.lo); #endif #if 0 static const struct { unsigned long lo, hi; } check_addrs[] = { /* Check 16MB of memory @ 0*/ { 0x00000000, 0x01000000 }, #if TOTAL_CPUS > 1 /* Check 16MB of memory @ 2GB */ { 0x80000000, 0x81000000 }, #endif }; int i; for(i = 0; i < sizeof(check_addrs)/sizeof(check_addrs[0]); i++) { ram_check(check_addrs[i].lo, check_addrs[i].hi); } #endif }