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Various VIA fixes.

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This commit is contained in:
OBattler
2021-07-17 06:01:27 +02:00
parent 7047517408
commit 5fc73eee7b
6 changed files with 96 additions and 39 deletions
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48
src/chipset/via_apollo.c
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@@ -341,37 +341,36 @@ via_apollo_host_bridge_write(int func, int addr, uint8_t val, void *priv)
break;
case 0x61: /* Shadow RAM Control 1 */
if ((dev->pci_conf[0x61] ^ val) & 0x03)
apollo_map(0xc0000, 0x04000, val & 0x03);
if ((dev->pci_conf[0x61] ^ val) & 0x0c)
apollo_map(0xc4000, 0x04000, (val & 0x0c) >> 2);
if ((dev->pci_conf[0x61] ^ val) & 0x30)
apollo_map(0xc8000, 0x04000, (val & 0x30) >> 4);
if ((dev->pci_conf[0x61] ^ val) & 0xc0)
apollo_map(0xcc000, 0x04000, (val & 0xc0) >> 6);
apollo_map(0xc0000, 0x04000, val & 0x03);
apollo_map(0xc4000, 0x04000, (val & 0x0c) >> 2);
apollo_map(0xc8000, 0x04000, (val & 0x30) >> 4);
apollo_map(0xcc000, 0x04000, (val & 0xc0) >> 6);
dev->pci_conf[0x61] = val;
break;
case 0x62: /* Shadow RAM Control 2 */
if ((dev->pci_conf[0x62] ^ val) & 0x03)
apollo_map(0xd0000, 0x04000, val & 0x03);
if ((dev->pci_conf[0x62] ^ val) & 0x0c)
apollo_map(0xd4000, 0x04000, (val & 0x0c) >> 2);
if ((dev->pci_conf[0x62] ^ val) & 0x30)
apollo_map(0xd8000, 0x04000, (val & 0x30) >> 4);
if ((dev->pci_conf[0x62] ^ val) & 0xc0)
apollo_map(0xdc000, 0x04000, (val & 0xc0) >> 6);
apollo_map(0xd0000, 0x04000, val & 0x03);
apollo_map(0xd4000, 0x04000, (val & 0x0c) >> 2);
apollo_map(0xd8000, 0x04000, (val & 0x30) >> 4);
apollo_map(0xdc000, 0x04000, (val & 0xc0) >> 6);
dev->pci_conf[0x62] = val;
break;
case 0x63: /* Shadow RAM Control 3 */
if ((dev->pci_conf[0x63] ^ val) & 0x30) {
apollo_map(0xf0000, 0x10000, (val & 0x30) >> 4);
shadowbios = (((val & 0x30) >> 4) & 0x02);
}
if ((dev->pci_conf[0x63] ^ val) & 0xc0)
apollo_map(0xe0000, 0x10000, (val & 0xc0) >> 6);
shadowbios = 0;
shadowbios_write = 0;
apollo_map(0xf0000, 0x10000, (val & 0x30) >> 4);
shadowbios = (((val & 0x30) >> 4) & 0x02);
shadowbios_write = (((val & 0x30) >> 4) & 0x01);
apollo_map(0xe0000, 0x10000, (val & 0xc0) >> 6);
shadowbios |= (((val & 0xc0) >> 6) & 0x02);
shadowbios_write |= (((val & 0xc0) >> 6) & 0x01);
dev->pci_conf[0x63] = val;
smram_disable_all();
if (dev->id >= VIA_691) switch (val & 0x03) {
if (dev->id >= VIA_691) switch (val & 0x03) {
case 0x00:
default:
apollo_smram_map(dev, 1, 0x000a0000, 0x00020000, 1); /* SMM: Code DRAM, Data DRAM */
@@ -680,7 +679,8 @@ via_apollo_init(const device_t *info)
memset(dev, 0, sizeof(via_apollo_t));
dev->smram = smram_add();
apollo_smram_map(dev, 1, 0x000a0000, 0x00020000, 1); /* SMM: Code DRAM, Data DRAM */
if (dev->id != VIA_8601)
apollo_smram_map(dev, 1, 0x000a0000, 0x00020000, 1); /* SMM: Code DRAM, Data DRAM */
pci_add_card(PCI_ADD_NORTHBRIDGE, via_apollo_read, via_apollo_write, dev);