|
|
@ -55,9 +55,9 @@ void dimms_read(unsigned long x)
|
|
|
|
eax = x;
|
|
|
|
eax = x;
|
|
|
|
for(c = 0; c < 6; c++) {
|
|
|
|
for(c = 0; c < 6; c++) {
|
|
|
|
|
|
|
|
|
|
|
|
print_err("dimms_read: ");
|
|
|
|
print_debug("dimms_read: ");
|
|
|
|
print_err_hex32(eax);
|
|
|
|
print_debug_hex32(eax);
|
|
|
|
print_err("\r\n");
|
|
|
|
print_debug("\r\n");
|
|
|
|
y = * (volatile unsigned long *) eax;
|
|
|
|
y = * (volatile unsigned long *) eax;
|
|
|
|
eax += 0x10000000;
|
|
|
|
eax += 0x10000000;
|
|
|
|
}
|
|
|
|
}
|
|
|
@ -68,9 +68,9 @@ void dimms_write(int x)
|
|
|
|
uint8_t c;
|
|
|
|
uint8_t c;
|
|
|
|
unsigned long eax = x;
|
|
|
|
unsigned long eax = x;
|
|
|
|
for(c = 0; c < 6; c++) {
|
|
|
|
for(c = 0; c < 6; c++) {
|
|
|
|
print_err("dimms_write: ");
|
|
|
|
print_debug("dimms_write: ");
|
|
|
|
print_err_hex32(eax);
|
|
|
|
print_debug_hex32(eax);
|
|
|
|
print_err("\r\n");
|
|
|
|
print_debug("\r\n");
|
|
|
|
*(volatile unsigned long *) eax = 0;
|
|
|
|
*(volatile unsigned long *) eax = 0;
|
|
|
|
eax += 0x10000000;
|
|
|
|
eax += 0x10000000;
|
|
|
|
}
|
|
|
|
}
|
|
|
@ -81,11 +81,11 @@ void dimms_write(int x)
|
|
|
|
#ifdef DEBUG_SETNORTHB
|
|
|
|
#ifdef DEBUG_SETNORTHB
|
|
|
|
void setnorthb(device_t north, uint8_t reg, uint8_t val)
|
|
|
|
void setnorthb(device_t north, uint8_t reg, uint8_t val)
|
|
|
|
{
|
|
|
|
{
|
|
|
|
print_err("setnorth: reg ");
|
|
|
|
print_debug("setnorth: reg ");
|
|
|
|
print_err_hex8(reg);
|
|
|
|
print_debug_hex8(reg);
|
|
|
|
print_err(" to ");
|
|
|
|
print_debug(" to ");
|
|
|
|
print_err_hex8(val);
|
|
|
|
print_debug_hex8(val);
|
|
|
|
print_err("\r\n");
|
|
|
|
print_debug("\r\n");
|
|
|
|
pci_write_config8(north, reg, val);
|
|
|
|
pci_write_config8(north, reg, val);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
#else
|
|
|
|
#else
|
|
|
@ -97,13 +97,13 @@ dumpnorth(device_t north)
|
|
|
|
{
|
|
|
|
{
|
|
|
|
uint8_t r, c;
|
|
|
|
uint8_t r, c;
|
|
|
|
for(r = 0; r < 256; r += 16) {
|
|
|
|
for(r = 0; r < 256; r += 16) {
|
|
|
|
print_err_hex8(r);
|
|
|
|
print_debug_hex8(r);
|
|
|
|
print_err(":");
|
|
|
|
print_debug(":");
|
|
|
|
for(c = 0; c < 16; c++) {
|
|
|
|
for(c = 0; c < 16; c++) {
|
|
|
|
print_err_hex8(pci_read_config8(north, r+c));
|
|
|
|
print_debug_hex8(pci_read_config8(north, r+c));
|
|
|
|
print_err(" ");
|
|
|
|
print_debug(" ");
|
|
|
|
}
|
|
|
|
}
|
|
|
|
print_err("\r\n");
|
|
|
|
print_debug("\r\n");
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
@ -120,22 +120,22 @@ static void sdram_set_registers(const struct mem_controller *ctrl)
|
|
|
|
device_t north = (device_t) 0;
|
|
|
|
device_t north = (device_t) 0;
|
|
|
|
uint8_t c, r;
|
|
|
|
uint8_t c, r;
|
|
|
|
|
|
|
|
|
|
|
|
print_err("vt8601 init starting\n");
|
|
|
|
print_err("vt8601 init starting\r\n");
|
|
|
|
north = pci_locate_device(PCI_ID(0x1106, 0x8601), 0);
|
|
|
|
north = pci_locate_device(PCI_ID(0x1106, 0x8601), 0);
|
|
|
|
north = 0;
|
|
|
|
north = 0;
|
|
|
|
print_err_hex32(north);
|
|
|
|
print_debug_hex32(north);
|
|
|
|
print_err(" is the north\n");
|
|
|
|
print_debug(" is the north\n");
|
|
|
|
print_err_hex16(pci_read_config16(north, 0));
|
|
|
|
print_debug_hex16(pci_read_config16(north, 0));
|
|
|
|
print_err(" ");
|
|
|
|
print_debug(" ");
|
|
|
|
print_err_hex16(pci_read_config16(north, 2));
|
|
|
|
print_debug_hex16(pci_read_config16(north, 2));
|
|
|
|
print_err("\r\n");
|
|
|
|
print_debug("\r\n");
|
|
|
|
|
|
|
|
|
|
|
|
/* All we are doing now is setting initial known-good values that will
|
|
|
|
/* All we are doing now is setting initial known-good values that will
|
|
|
|
* be revised later as we read SPD
|
|
|
|
* be revised later as we read SPD
|
|
|
|
*/
|
|
|
|
*/
|
|
|
|
// memory clk enable. We are not using ECC
|
|
|
|
// memory clk enable. We are not using ECC
|
|
|
|
pci_write_config8(north,0x78, 0x01);
|
|
|
|
pci_write_config8(north,0x78, 0x01);
|
|
|
|
print_err_hex8(pci_read_config8(north, 0x78));
|
|
|
|
print_debug_hex8(pci_read_config8(north, 0x78));
|
|
|
|
// dram control, see the book.
|
|
|
|
// dram control, see the book.
|
|
|
|
#if DIMM_PC133
|
|
|
|
#if DIMM_PC133
|
|
|
|
pci_write_config8(north,0x68, 0x52);
|
|
|
|
pci_write_config8(north,0x68, 0x52);
|
|
|
@ -146,7 +146,7 @@ static void sdram_set_registers(const struct mem_controller *ctrl)
|
|
|
|
pci_write_config8(north,0x6B, 0x0c);
|
|
|
|
pci_write_config8(north,0x6B, 0x0c);
|
|
|
|
// Initial setting, 256MB in each bank, will be rewritten later.
|
|
|
|
// Initial setting, 256MB in each bank, will be rewritten later.
|
|
|
|
pci_write_config8(north,0x5A, 0x20);
|
|
|
|
pci_write_config8(north,0x5A, 0x20);
|
|
|
|
print_err_hex8(pci_read_config8(north, 0x5a));
|
|
|
|
print_debug_hex8(pci_read_config8(north, 0x5a));
|
|
|
|
pci_write_config8(north,0x5B, 0x40);
|
|
|
|
pci_write_config8(north,0x5B, 0x40);
|
|
|
|
pci_write_config8(north,0x5C, 0x60);
|
|
|
|
pci_write_config8(north,0x5C, 0x60);
|
|
|
|
pci_write_config8(north,0x5D, 0x80);
|
|
|
|
pci_write_config8(north,0x5D, 0x80);
|
|
|
@ -220,11 +220,15 @@ do_module_size(unsigned char slot /*, unsigned char base) */)
|
|
|
|
/* is the module there? if byte 2 is not 4, then we'll assume it
|
|
|
|
/* is the module there? if byte 2 is not 4, then we'll assume it
|
|
|
|
* is useless.
|
|
|
|
* is useless.
|
|
|
|
*/
|
|
|
|
*/
|
|
|
|
if (smbus_read_byte(module, 2) != 4)
|
|
|
|
if (smbus_read_byte(module, 2) != 4) {
|
|
|
|
|
|
|
|
print_err("Slot ");
|
|
|
|
|
|
|
|
print_err_hex8(slot);
|
|
|
|
|
|
|
|
print_err(" is empty\r\n");
|
|
|
|
goto done;
|
|
|
|
goto done;
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
//print_err_hex8(slot);
|
|
|
|
//print_debug_hex8(slot);
|
|
|
|
// print_err(" is SDRAM\n");
|
|
|
|
// print_debug(" is SDRAM\n");
|
|
|
|
width = smbus_read_byte(module, 6) | (smbus_read_byte(module,7)<<0);
|
|
|
|
width = smbus_read_byte(module, 6) | (smbus_read_byte(module,7)<<0);
|
|
|
|
banks = smbus_read_byte(module, 17);
|
|
|
|
banks = smbus_read_byte(module, 17);
|
|
|
|
/* we're going to assume symmetric banks. Sorry. */
|
|
|
|
/* we're going to assume symmetric banks. Sorry. */
|
|
|
@ -239,15 +243,15 @@ do_module_size(unsigned char slot /*, unsigned char base) */)
|
|
|
|
value -= 23;
|
|
|
|
value -= 23;
|
|
|
|
/* now subtract 3 more bits as these are 8-bit bytes */
|
|
|
|
/* now subtract 3 more bits as these are 8-bit bytes */
|
|
|
|
value -= 3;
|
|
|
|
value -= 3;
|
|
|
|
// print_err_hex8(value);
|
|
|
|
// print_debug_hex8(value);
|
|
|
|
// print_err(" is the # bits for this bank\n");
|
|
|
|
// print_debug(" is the # bits for this bank\n");
|
|
|
|
/* now put that size into the correct register */
|
|
|
|
/* now put that size into the correct register */
|
|
|
|
value = (1 << value);
|
|
|
|
value = (1 << value);
|
|
|
|
done:
|
|
|
|
done:
|
|
|
|
reg = ramregs[slot];
|
|
|
|
reg = ramregs[slot];
|
|
|
|
|
|
|
|
|
|
|
|
// print_err_hex8(value); print_err(" would go into ");
|
|
|
|
// print_debug_hex8(value); print_debug(" would go into ");
|
|
|
|
// print_err_hex8(ramregs[reg]); print_err("\n");
|
|
|
|
// print_debug_hex8(ramregs[reg]); print_debug("\n");
|
|
|
|
// pci_write_config8(north, ramregs[reg], value);
|
|
|
|
// pci_write_config8(north, ramregs[reg], value);
|
|
|
|
return value;
|
|
|
|
return value;
|
|
|
|
}
|
|
|
|
}
|
|
|
@ -272,7 +276,7 @@ static void sdram_set_spd_registers(const struct mem_controller *ctrl)
|
|
|
|
|
|
|
|
|
|
|
|
val = (Trp << 7) | (Tras << 6) | (casl << 4) | 4;
|
|
|
|
val = (Trp << 7) | (Tras << 6) | (casl << 4) | 4;
|
|
|
|
|
|
|
|
|
|
|
|
print_err_hex8(val); print_err(" is the computed timing\n");
|
|
|
|
print_debug_hex8(val); print_debug(" is the computed timing\n");
|
|
|
|
/* don't set it. Experience shows that this screwy chipset should just
|
|
|
|
/* don't set it. Experience shows that this screwy chipset should just
|
|
|
|
* be run with the most conservative timing.
|
|
|
|
* be run with the most conservative timing.
|
|
|
|
* pci_write_config8(0, 0x64, val);
|
|
|
|
* pci_write_config8(0, 0x64, val);
|
|
|
@ -299,19 +303,19 @@ static void sdram_enable(int controllers, const struct mem_controller *ctrl)
|
|
|
|
|
|
|
|
|
|
|
|
/* set NOP*/
|
|
|
|
/* set NOP*/
|
|
|
|
pci_write_config8(north,0x6C, 0x01);
|
|
|
|
pci_write_config8(north,0x6C, 0x01);
|
|
|
|
print_err("NOP\r\n");
|
|
|
|
print_debug("NOP\r\n");
|
|
|
|
/* wait 200us*/
|
|
|
|
/* wait 200us*/
|
|
|
|
// You need to do the memory reference. That causes the nop cycle.
|
|
|
|
// You need to do the memory reference. That causes the nop cycle.
|
|
|
|
dimms_read(0);
|
|
|
|
dimms_read(0);
|
|
|
|
udelay(400);
|
|
|
|
udelay(400);
|
|
|
|
print_err("PRECHARGE\r\n");
|
|
|
|
print_debug("PRECHARGE\r\n");
|
|
|
|
/* set precharge */
|
|
|
|
/* set precharge */
|
|
|
|
pci_write_config8(north,0x6C, 0x02);
|
|
|
|
pci_write_config8(north,0x6C, 0x02);
|
|
|
|
print_err("DUMMY READS\r\n");
|
|
|
|
print_debug("DUMMY READS\r\n");
|
|
|
|
/* dummy reads*/
|
|
|
|
/* dummy reads*/
|
|
|
|
dimms_read(0);
|
|
|
|
dimms_read(0);
|
|
|
|
udelay(200);
|
|
|
|
udelay(200);
|
|
|
|
print_err("CBR\r\n");
|
|
|
|
print_debug("CBR\r\n");
|
|
|
|
/* set CBR*/
|
|
|
|
/* set CBR*/
|
|
|
|
pci_write_config8(north,0x6C, 0x04);
|
|
|
|
pci_write_config8(north,0x6C, 0x04);
|
|
|
|
|
|
|
|
|
|
|
@ -332,7 +336,7 @@ static void sdram_enable(int controllers, const struct mem_controller *ctrl)
|
|
|
|
udelay(200);
|
|
|
|
udelay(200);
|
|
|
|
dimms_read(0);
|
|
|
|
dimms_read(0);
|
|
|
|
udelay(200);
|
|
|
|
udelay(200);
|
|
|
|
print_err("MRS\r\n");
|
|
|
|
print_debug("MRS\r\n");
|
|
|
|
/* set MRS*/
|
|
|
|
/* set MRS*/
|
|
|
|
pci_write_config8(north,0x6c, 0x03);
|
|
|
|
pci_write_config8(north,0x6c, 0x03);
|
|
|
|
#if DIMM_CL2
|
|
|
|
#if DIMM_CL2
|
|
|
@ -341,21 +345,21 @@ static void sdram_enable(int controllers, const struct mem_controller *ctrl)
|
|
|
|
dimms_read(0x1d0);
|
|
|
|
dimms_read(0x1d0);
|
|
|
|
#endif
|
|
|
|
#endif
|
|
|
|
udelay(200);
|
|
|
|
udelay(200);
|
|
|
|
print_err("NORMAL\r\n");
|
|
|
|
print_debug("NORMAL\r\n");
|
|
|
|
/* set to normal mode */
|
|
|
|
/* set to normal mode */
|
|
|
|
pci_write_config8(north,0x6C, 0x08);
|
|
|
|
pci_write_config8(north,0x6C, 0x08);
|
|
|
|
|
|
|
|
|
|
|
|
dimms_write(0x55aa55aa);
|
|
|
|
dimms_write(0x55aa55aa);
|
|
|
|
dimms_read(0);
|
|
|
|
dimms_read(0);
|
|
|
|
udelay(200);
|
|
|
|
udelay(200);
|
|
|
|
print_err("set ref. rate\r\n");
|
|
|
|
print_debug("set ref. rate\r\n");
|
|
|
|
// Set the refresh rate.
|
|
|
|
// Set the refresh rate.
|
|
|
|
#if DIMM_PC133
|
|
|
|
#if DIMM_PC133
|
|
|
|
pci_write_config8(north,0x6A, 0x86);
|
|
|
|
pci_write_config8(north,0x6A, 0x86);
|
|
|
|
#else
|
|
|
|
#else
|
|
|
|
pci_write_config8(north,0x6A, 0x65);
|
|
|
|
pci_write_config8(north,0x6A, 0x65);
|
|
|
|
#endif
|
|
|
|
#endif
|
|
|
|
print_err("enable multi-page open\r\n");
|
|
|
|
print_debug("enable multi-page open\r\n");
|
|
|
|
// enable multi-page open
|
|
|
|
// enable multi-page open
|
|
|
|
pci_write_config8(north,0x6B, 0x0d);
|
|
|
|
pci_write_config8(north,0x6B, 0x0d);
|
|
|
|
|
|
|
|
|
|
|
@ -374,21 +378,21 @@ static void sdram_enable(int controllers, const struct mem_controller *ctrl)
|
|
|
|
pci_write_config8(north,0x56, 0xff);
|
|
|
|
pci_write_config8(north,0x56, 0xff);
|
|
|
|
pci_write_config8(north,0x57, 0xff);
|
|
|
|
pci_write_config8(north,0x57, 0xff);
|
|
|
|
dumpnorth(north);
|
|
|
|
dumpnorth(north);
|
|
|
|
print_err("MA\r\n");
|
|
|
|
print_debug("MA\r\n");
|
|
|
|
for(c = 0; c < 8; c++) {
|
|
|
|
for(c = 0; c < 8; c++) {
|
|
|
|
/* Write different values to 0 and 8, then read from 0.
|
|
|
|
/* Write different values to 0 and 8, then read from 0.
|
|
|
|
* If values of address 0 match, we have something there. */
|
|
|
|
* If values of address 0 match, we have something there. */
|
|
|
|
print_err("write to 0\r\n");
|
|
|
|
print_debug("write to 0\r\n");
|
|
|
|
*(volatile unsigned long *) 0 = 0x12345678;
|
|
|
|
*(volatile unsigned long *) 0 = 0x12345678;
|
|
|
|
|
|
|
|
|
|
|
|
/* LEAVE THIS HERE. IT IS ESSENTIAL. OTHERWISE BUFFERING
|
|
|
|
/* LEAVE THIS HERE. IT IS ESSENTIAL. OTHERWISE BUFFERING
|
|
|
|
* WILL FOOL YOU!
|
|
|
|
* WILL FOOL YOU!
|
|
|
|
*/
|
|
|
|
*/
|
|
|
|
print_err("write to 8\r\n");
|
|
|
|
print_debug("write to 8\r\n");
|
|
|
|
*(volatile unsigned long *) 8 = 0x87654321;
|
|
|
|
*(volatile unsigned long *) 8 = 0x87654321;
|
|
|
|
|
|
|
|
|
|
|
|
if (*(volatile unsigned long *) 0 != 0x12345678) {
|
|
|
|
if (*(volatile unsigned long *) 0 != 0x12345678) {
|
|
|
|
print_err("no memory in this bank\r\n");
|
|
|
|
print_debug("no memory in this bank\r\n");
|
|
|
|
/* No memory in this bank. Tell it to the bridge. */
|
|
|
|
/* No memory in this bank. Tell it to the bridge. */
|
|
|
|
pci_write_config8(north,ramregs[c], 0);
|
|
|
|
pci_write_config8(north,ramregs[c], 0);
|
|
|
|
}
|
|
|
|
}
|
|
|
@ -404,7 +408,7 @@ static void sdram_enable(int controllers, const struct mem_controller *ctrl)
|
|
|
|
pci_write_config8(north,0x58, raminit_ma_reg_table[r]);
|
|
|
|
pci_write_config8(north,0x58, raminit_ma_reg_table[r]);
|
|
|
|
|
|
|
|
|
|
|
|
* (volatile unsigned long *) eax = 0;
|
|
|
|
* (volatile unsigned long *) eax = 0;
|
|
|
|
print_err(" done write to eax\r\n");
|
|
|
|
print_debug(" done write to eax\r\n");
|
|
|
|
// Write to addresses with only one address bit
|
|
|
|
// Write to addresses with only one address bit
|
|
|
|
// on, from 0x80000000 to 0x00000008 (lower 3 bits
|
|
|
|
// on, from 0x80000000 to 0x00000008 (lower 3 bits
|
|
|
|
// are ignored, assuming 64-bit bus). Then what
|
|
|
|
// are ignored, assuming 64-bit bus). Then what
|
|
|
@ -416,20 +420,20 @@ static void sdram_enable(int controllers, const struct mem_controller *ctrl)
|
|
|
|
eax = 0x80000000;
|
|
|
|
eax = 0x80000000;
|
|
|
|
while (eax != 4) {
|
|
|
|
while (eax != 4) {
|
|
|
|
* (volatile unsigned long *) eax = eax;
|
|
|
|
* (volatile unsigned long *) eax = eax;
|
|
|
|
//print_err_hex32(eax);
|
|
|
|
//print_debug_hex32(eax);
|
|
|
|
outb(eax&0xff, 0x80);
|
|
|
|
outb(eax&0xff, 0x80);
|
|
|
|
eax >>= 1;
|
|
|
|
eax >>= 1;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
print_err(" done read to eax\r\n");
|
|
|
|
print_debug(" done read to eax\r\n");
|
|
|
|
eax = * (unsigned long *)0;
|
|
|
|
eax = * (unsigned long *)0;
|
|
|
|
/* oh boy ... what is this.
|
|
|
|
/* oh boy ... what is this.
|
|
|
|
movl 0, %eax
|
|
|
|
movl 0, %eax
|
|
|
|
cmpl %eax, %esi
|
|
|
|
cmpl %eax, %esi
|
|
|
|
jnc 3f
|
|
|
|
jnc 3f
|
|
|
|
*/
|
|
|
|
*/
|
|
|
|
print_err("eax and esi: ");
|
|
|
|
print_debug("eax and esi: ");
|
|
|
|
print_err_hex32(eax); print_err(" ");
|
|
|
|
print_debug_hex32(eax); print_debug(" ");
|
|
|
|
print_err_hex32(esi); print_err("\r\n");
|
|
|
|
print_debug_hex32(esi); print_debug("\r\n");
|
|
|
|
|
|
|
|
|
|
|
|
if (eax > esi) { /* ??*/
|
|
|
|
if (eax > esi) { /* ??*/
|
|
|
|
|
|
|
|
|
|
|
@ -441,9 +445,9 @@ static void sdram_enable(int controllers, const struct mem_controller *ctrl)
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
pci_write_config8(north,0x58, raminit_ma_reg_table[best]);
|
|
|
|
pci_write_config8(north,0x58, raminit_ma_reg_table[best]);
|
|
|
|
print_err("enabled first bank of ram ... ma is ");
|
|
|
|
print_debug("enabled first bank of ram ... ma is ");
|
|
|
|
print_err_hex8(pci_read_config8(north, 0x58));
|
|
|
|
print_debug_hex8(pci_read_config8(north, 0x58));
|
|
|
|
print_err("\r\n");
|
|
|
|
print_debug("\r\n");
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
base = 0;
|
|
|
|
base = 0;
|
|
|
@ -475,7 +479,9 @@ static void sdram_enable(int controllers, const struct mem_controller *ctrl)
|
|
|
|
base = do_module_size(0xa0, base);
|
|
|
|
base = do_module_size(0xa0, base);
|
|
|
|
base = do_module_size(0xa0, base);
|
|
|
|
base = do_module_size(0xa0, base);
|
|
|
|
base = do_module_size(0xa0, base);*/
|
|
|
|
base = do_module_size(0xa0, base);*/
|
|
|
|
print_err("vt8601 done\n");
|
|
|
|
print_err("vt8601 done\r\n");
|
|
|
|
|
|
|
|
/*
|
|
|
|
dumpnorth(north);
|
|
|
|
dumpnorth(north);
|
|
|
|
udelay(1000);
|
|
|
|
udelay(1000);
|
|
|
|
|
|
|
|
*/
|
|
|
|
}
|
|
|
|
}
|
|
|
|