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Brute set configuration on the Intel 82335

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Fixes the ADI 386SX freezing while booting an OS when shadowing is on.
This commit is contained in:
tiseno100
2020-09-16 17:52:09 +03:00
committed by GitHub
parent e5de57cffb
commit 8464883e22
1 changed files with 7 additions and 6 deletions
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13
src/chipset/intel_82335.c
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@@ -134,7 +134,6 @@ intel_82335_write(uint16_t addr, uint16_t val, void *priv)
/* Unlock/Lock configuration registers */
dev->cfg_locked = LOCK_STATUS;
}
@@ -164,11 +163,7 @@ intel_82335_init(const device_t *info)
intel_82335_t *dev = (intel_82335_t *) malloc(sizeof(intel_82335_t));
memset(dev, 0, sizeof(intel_82335_t));
memset(dev->regs, 0, sizeof(dev->regs));
dev->regs[0x28] = 0xf9;
dev->cfg_locked = 1;
dev->cfg_locked = 0;
/* Memory Configuration */
io_sethandler(0x0022, 0x0001, NULL, intel_82335_read, NULL, NULL, intel_82335_write, NULL, dev);
@@ -187,6 +182,12 @@ intel_82335_init(const device_t *info)
/* Extended Granularity */
io_sethandler(0x002e, 0x0001, NULL, intel_82335_read, NULL, NULL, intel_82335_write, NULL, dev);
/* Default Programming(Fixes Shadowing failures on the ADI 386SX) */
for(uint16_t i=0x0022; i<0x002f; i=i+0x0002)
intel_82335_write(i, 0x0000, dev);
intel_82335_write(0x0028, 0x00f9, dev);
return dev;
}