From: Evan Quan <evan.quan@xxxxxxx>
commit c83c4e1912446db697a120eb30126cd80cbf6349 upstream.
Polaris12 32bit ASIC needs a special MC firmware.
Signed-off-by: Evan Quan <evan.quan@xxxxxxx>
Reviewed-by: Alex Deucher <alexander.deucher@xxxxxxx>
Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
Cc: stable@xxxxxxxxxxxxxxx
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c | 13 ++++++++++---
1 file changed, 10 insertions(+), 3 deletions(-)
--- a/drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c
@@ -59,6 +59,7 @@ MODULE_FIRMWARE("amdgpu/tonga_mc.bin");
MODULE_FIRMWARE("amdgpu/polaris11_mc.bin");
MODULE_FIRMWARE("amdgpu/polaris10_mc.bin");
MODULE_FIRMWARE("amdgpu/polaris12_mc.bin");
+MODULE_FIRMWARE("amdgpu/polaris12_32_mc.bin");
MODULE_FIRMWARE("amdgpu/polaris11_k_mc.bin");
MODULE_FIRMWARE("amdgpu/polaris10_k_mc.bin");
MODULE_FIRMWARE("amdgpu/polaris12_k_mc.bin");
@@ -243,10 +244,16 @@ static int gmc_v8_0_init_microcode(struc
chip_name = "polaris10";
break;
case CHIP_POLARIS12:
- if (ASICID_IS_P23(adev->pdev->device, adev->pdev->revision))
+ if (ASICID_IS_P23(adev->pdev->device, adev->pdev->revision)) {
chip_name = "polaris12_k";
- else
- chip_name = "polaris12";
+ } else {
+ WREG32(mmMC_SEQ_IO_DEBUG_INDEX, ixMC_IO_DEBUG_UP_159);
+ /* Polaris12 32bit ASIC needs a special MC firmware */
+ if (RREG32(mmMC_SEQ_IO_DEBUG_DATA) == 0x05b4dc40)
+ chip_name = "polaris12_32";
+ else
+ chip_name = "polaris12";
+ }
break;
case CHIP_FIJI:
case CHIP_CARRIZO:
