drm/amdgpu: correct ROM_INDEX/DATA offset for VEGA20

The ROMC_INDEX/DATA offset was changed to e4/e5 since
from smuio_v11 (vega20/arcturus).

Signed-off-by: Hawking Zhang <Hawking.Zhang@amd.com>
Tested-by: Candice Li <Candice.Li@amd.com>
Reviewed-by: Candice Li <Candice.Li@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/amd/amdgpu/soc15.c b/drivers/gpu/drm/amd/amdgpu/soc15.c
index 10833c5..a40499d 100644 (file)
--- a/drivers/gpu/drm/amd/amdgpu/soc15.c
+++ b/drivers/gpu/drm/amd/amdgpu/soc15.c
@@ -89,6 +89,13 @@
 #define HDP_MEM_POWER_CTRL__RC_MEM_POWER_CTRL_EN_MASK  0x00010000L
 #define HDP_MEM_POWER_CTRL__RC_MEM_POWER_LS_EN_MASK            0x00020000L
 #define mmHDP_MEM_POWER_CTRL_BASE_IDX  0
+
+/* for Vega20/arcturus regiter offset change */
+#define        mmROM_INDEX_VG20                                0x00e4
+#define        mmROM_INDEX_VG20_BASE_IDX                       0
+#define        mmROM_DATA_VG20                                 0x00e5
+#define        mmROM_DATA_VG20_BASE_IDX                        0
+
 /*
  * Indirect registers accessor
  */
@@ -309,6 +316,8 @@ static bool soc15_read_bios_from_rom(struct amdgpu_device *adev,
 {
        u32 *dw_ptr;
        u32 i, length_dw;
+       uint32_t rom_index_offset;
+       uint32_t rom_data_offset;
 
        if (bios == NULL)
                return false;
@@ -321,11 +330,23 @@ static bool soc15_read_bios_from_rom(struct amdgpu_device *adev,
        dw_ptr = (u32 *)bios;
        length_dw = ALIGN(length_bytes, 4) / 4;
 
+       switch (adev->asic_type) {
+       case CHIP_VEGA20:
+       case CHIP_ARCTURUS:
+               rom_index_offset = SOC15_REG_OFFSET(SMUIO, 0, mmROM_INDEX_VG20);
+               rom_data_offset = SOC15_REG_OFFSET(SMUIO, 0, mmROM_DATA_VG20);
+               break;
+       default:
+               rom_index_offset = SOC15_REG_OFFSET(SMUIO, 0, mmROM_INDEX);
+               rom_data_offset = SOC15_REG_OFFSET(SMUIO, 0, mmROM_DATA);
+               break;
+       }
+
        /* set rom index to 0 */
-       WREG32(SOC15_REG_OFFSET(SMUIO, 0, mmROM_INDEX), 0);
+       WREG32(rom_index_offset, 0);
        /* read out the rom data */
        for (i = 0; i < length_dw; i++)
-               dw_ptr[i] = RREG32(SOC15_REG_OFFSET(SMUIO, 0, mmROM_DATA));
+               dw_ptr[i] = RREG32(rom_data_offset);
 
        return true;
 }