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ALi M6117 fixes, the Award BIOS now boots

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This commit is contained in:
RichardG867
2021-01-06 16:20:02 -03:00
parent 4347dbc12a
commit b1686e0f4b
2 changed files with 11 additions and 7 deletions
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14
src/chipset/ali6117.c
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@@ -6,7 +6,7 @@
*
* This file is part of the 86Box distribution.
*
* Implementation of the ALi M6117D SoC.
* Implementation of the ALi M6117 SoC.
*
*
*
@@ -34,6 +34,7 @@
#include <86box/port_92.h>
#include <86box/usb.h>
#include <86box/hdc.h>
#include <86box/hdc_ide.h>
#include <86box/chipset.h>
@@ -47,7 +48,7 @@ typedef struct ali6117_t
uint8_t regs[256];
} ali6117_t;
#define ENABLE_ALI6117_LOG 1
#ifdef ENABLE_ALI6117_LOG
int ali6117_do_log = ENABLE_ALI6117_LOG;
@@ -77,7 +78,7 @@ ali6117_recalcmapping(ali6117_t *dev)
shadowbios = 0;
shadowbios_write = 0;
ali6117_log("ALI6117: Shadowing for a0000-bffff (reg 12) = %s\n", (dev->regs[0x12] & 0x02) ? "on" : "off");
ali6117_log("ALI6117: Shadowing for A0000-BFFFF (reg 12 bit 1) = %s\n", (dev->regs[0x12] & 0x02) ? "on" : "off");
mem_set_mem_state(0xa0000, 0x20000, (dev->regs[0x12] & 0x02) ? (MEM_WRITE_INTERNAL | MEM_READ_INTERNAL) : (MEM_WRITE_EXTANY | MEM_READ_EXTANY));
for (reg = 0; reg <= 1; reg++) {
@@ -149,7 +150,7 @@ ali6117_reg_write(uint16_t addr, uint8_t val, void *priv)
case 0x20:
val &= 0xbf;
refresh_at_enable = (val & 0x02);
refresh_at_enable = !!(val & 0x80);
break;
case 0x31:
@@ -175,8 +176,11 @@ ali6117_reg_write(uint16_t addr, uint8_t val, void *priv)
break;
case 0x3c:
/* TODO: IDE channel selection (bit 0, secondary if set) */
val &= 0x8f;
ide_pri_disable();
ide_set_base(1, (val & 0x01) ? 0x170 : 0x1f0);
ide_set_side(1, (val & 0x01) ? 0x376 : 0x3f6);
ide_pri_enable();
break;
case 0x44: case 0x45: