diff options
Diffstat (limited to 'src/northbridge/via')
| -rw-r--r-- | src/northbridge/via/vt8601/raminit.c | 55 |
1 files changed, 49 insertions, 6 deletions
diff --git a/src/northbridge/via/vt8601/raminit.c b/src/northbridge/via/vt8601/raminit.c index 58723091b6..5b87b9ec3e 100644 --- a/src/northbridge/via/vt8601/raminit.c +++ b/src/northbridge/via/vt8601/raminit.c @@ -316,18 +316,53 @@ msg_bytes: #define UDELAY(x) movl $x,%ecx; 9: outb %al,$0x81; loop 9b void dimms_read(unsigned long x) { + unsigned long eax; volatile unsigned long y; eax = x; - for(; eax < 0x60000000; eax += 0x10000000) + for(; eax < 0x60000000; eax += 0x10000000){ + print_err("dimms_read: "); + print_err_hex32(eax); + print_err("\r\n"); y = * (volatile unsigned long *) eax; + } } void dimms_write(int x) { + print_err("dimms_write: \r\n"); unsigned long eax = x; - for(; eax < 0x60000000; eax += 0x10000000) + for(; eax < 0x60000000; eax += 0x10000000) { + print_err("dimms_read: "); + print_err_hex32(eax); + print_err("\r\n"); *(volatile unsigned long *) eax = 0; + } } +#define setnorthb pci_write_config8 +#if 0 +void setnorthb(device_t north, uint8_t reg, uint8_t val) { + print_err("setnorth: reg "); + print_err_hex8(reg); + print_err(" to "); + print_err_hex8(val); + print_err("\r\n"); + pci_write_config8(north, reg, val); +} +#endif + +void +dumpnorth(device_t north) { + uint8_t r, c; + for(r = 0; r < 256; r += 16) { + print_err_hex8(r); + print_err(":"); + for(c = 0; c < 16; c++) { + print_err_hex8(pci_read_config8(north, r+c)); + print_err(" "); + } + print_err("\r\n"); + } +} static void sdram_set_registers(const struct mem_controller *ctrl) { static const uint16_t raminit_ma_reg_table[] = { /* Values for MA type register to try */ @@ -339,11 +374,17 @@ static const uint16_t raminit_ma_reg_table[] = { uint8_t c, r; print_err("vt8601 init starting\n"); - north = pci_locate_device(PCI_ID(0x1106, 0x8601), north); + north = pci_locate_device(PCI_ID(0x1106, 0x8601), 0); print_err_hex32(north); print_err(" is the north\n"); + print_err_hex16(pci_read_config16(north, 0)); + print_err(" "); + print_err_hex16(pci_read_config16(north, 2)); + print_err("\r\n"); + // memory clk enable. We are not using ECC pci_write_config8(north,0x78, 0x01); + print_err_hex8(pci_read_config8(north, 0x78)); // dram control, see the book. #if DIMM_PC133 pci_write_config8(north,0x68, 0x52); @@ -354,6 +395,7 @@ static const uint16_t raminit_ma_reg_table[] = { pci_write_config8(north,0x6B, 0x0c); // Initial setting, 256MB in each bank, will be rewritten later. pci_write_config8(north,0x5A, 0x20); + print_err_hex8(pci_read_config8(north, 0x5a)); pci_write_config8(north,0x5B, 0x40); pci_write_config8(north,0x5C, 0x60); pci_write_config8(north,0x5D, 0x80); @@ -380,7 +422,7 @@ static const uint16_t raminit_ma_reg_table[] = { pci_write_config8(north,0x65, 0xe4); pci_write_config8(north,0x66, 0xe4); #endif - + dumpnorth(north); // dram frequency select. // enable 4K pages for 64M dram. #if DIMM_PC133 @@ -532,10 +574,11 @@ static const uint16_t raminit_ma_reg_table[] = { } pci_write_config8(north,0x58, raminit_ma_reg_table[best]); - print_err("enabled first bank of ram ...\n"); + print_err("enabled first bank of ram ... ma is "); + print_err_hex8(pci_read_config8(north, 0x58)); + print_err("\r\n"); } } - print_err("vt8601 done\n"); } |