diff options
Diffstat (limited to 'src/mainboard/asus/p2b/auto.c')
-rw-r--r-- | src/mainboard/asus/p2b/auto.c | 154 |
1 files changed, 154 insertions, 0 deletions
diff --git a/src/mainboard/asus/p2b/auto.c b/src/mainboard/asus/p2b/auto.c new file mode 100644 index 0000000000..65d0ae7cc2 --- /dev/null +++ b/src/mainboard/asus/p2b/auto.c @@ -0,0 +1,154 @@ +#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/hlt.h> +#include "pc80/serial.c" +#include "arch/i386/lib/console.c" +#include "ram/ramtest.c" +#include "southbridge/intel/i440bx/i440bx_early_smbus.c" +#include "superio/winbond/w83977tf/w83977tf_early_serial.c" +#include "northbridge/intel/i440bx/raminit.h" +#include "cpu/x86/mtrr/earlymtrr.c" +#include "cpu/x86/bist.h" + +#define SERIAL_DEV PNP_DEV(0x3f0, W83977TF_SP1) + +/* + */ +void udelay(int usecs) +{ + int i; + for(i = 0; i < usecs; i++) + outb(i&0xff, 0x80); +} + +#include "debug.c" +#include "lib/delay.c" + + +static void memreset_setup(void) +{ +} + +/* + static void memreset(int controllers, const struct mem_controller *ctrl) + { + } +*/ + + +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 += 0x100; /* 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 inline int spd_read_byte(unsigned device, unsigned address) +{ + unsigned char c; + c = smbus_read_byte(device, address); + return c; +} + + +#include "northbridge/intel/i440bx/raminit.c" +#include "northbridge/intel/i440bx/debug.c" +#include "sdram/generic_sdram.c" + +static void main(unsigned long bist) +{ + static const struct mem_controller cpu[] = { + { + .channel0 = { + (0xa << 3) | 0, + (0xa << 3) | 1, + (0xa << 3) | 2, (0xa << 3) | 3, + }, + } + }; + unsigned long x; + + if (bist == 0) { + early_mtrr_init(); + } + w83977tf_enable_serial(SERIAL_DEV, TTYS0_BASE); + uart_init(); + console_init(); + + /* Halt if there was a built in self test failure */ + report_bist_failure(bist); + + enable_smbus(); + dump_spd_registers(&cpu[0]); + +#if 0 + 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); + sdram_set_spd_registers((const struct mem_controller *) 0); + sdram_enable(0, (const struct mem_controller *) 0); +#endif + + /* Check all of memory */ +#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 +} |