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Add card post detection for legacy models

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* check for older cards, and see if they are posted
  using the older pre-avivo registers
This commit is contained in:
Alexander von Gluck IV
2011-11-12 14:22:57 -06:00
parent 207794909d
commit e35c1f2d02
1 changed files with 16 additions and 1 deletions
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src/add-ons/accelerants/radeon_hd/bios.cpp
+16 -1
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@@ -91,15 +91,30 @@ radeon_bios_isposted()
+ EVERGREEN_CRTC5_REGISTER_OFFSET);
if ((reg & EVERGREEN_CRTC_MASTER_EN) != 0)
return true;
} else {
} else if (info.chipsetID >= RADEON_RS600) {
// avivio through r700
reg = Read32(OUT, AVIVO_D1CRTC_CONTROL)
| Read32(OUT, AVIVO_D2CRTC_CONTROL);
if ((reg & AVIVO_CRTC_EN) != 0) {
return true;
}
} else {
// early cards
reg = Read32(OUT, RADEON_CRTC_GEN_CNTL)
| Read32(OUT, RADEON_CRTC2_GEN_CNTL);
if ((reg & RADEON_CRTC_EN) != 0)
return true;
}
// also check memory size incase crt controlers are disabled
if (info.chipsetID >= RADEON_R600)
reg = Read32(OUT, R600_CONFIG_MEMSIZE);
else
reg = Read32(OUT, RADEON_CONFIG_MEMSIZE);
if (reg)
return true;
return false;
}