diff options
| author | Mario Limonciello <mario.limonciello@amd.com> | 2023-01-30 10:16:06 -0600 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2023-02-01 22:45:51 -0500 |
| commit | 5048fa1ebf89d03cf0ceca13fab8f800399e9ee3 (patch) | |
| tree | 9ed6ea99fcdce3bc0679ff05c6e4cc227d1ffe03 | |
| parent | bb25849c0fa550b26cecc9c476c519a927c66898 (diff) | |
| download | linux-5048fa1ebf89d03cf0ceca13fab8f800399e9ee3.tar.gz | |
drm/amd: Fix initialization for nbio 4.3.0
A mistake has been made on some boards with NBIO 4.3.0 where some
NBIO registers aren't properly set by the hardware.
Ensure that they're set during initialization.
Cc: Natikar Basavaraj <Basavaraj.Natikar@amd.com>
Tested-by: Satyanarayana ReddyTVN <Satyanarayana.ReddyTVN@amd.com>
Tested-by: Rutvij Gajjar <Rutvij.Gajjar@amd.com>
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org # 6.1.x
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/nbio_v4_3.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/nbio_v4_3.c b/drivers/gpu/drm/amd/amdgpu/nbio_v4_3.c index 15eb3658d70e64..09fdcd20cb9196 100644 --- a/drivers/gpu/drm/amd/amdgpu/nbio_v4_3.c +++ b/drivers/gpu/drm/amd/amdgpu/nbio_v4_3.c @@ -337,7 +337,13 @@ const struct nbio_hdp_flush_reg nbio_v4_3_hdp_flush_reg = { static void nbio_v4_3_init_registers(struct amdgpu_device *adev) { - return; + if (adev->ip_versions[NBIO_HWIP][0] == IP_VERSION(4, 3, 0)) { + uint32_t data; + + data = RREG32_SOC15(NBIO, 0, regRCC_DEV0_EPF2_STRAP2); + data &= ~RCC_DEV0_EPF2_STRAP2__STRAP_NO_SOFT_RESET_DEV0_F2_MASK; + WREG32_SOC15(NBIO, 0, regRCC_DEV0_EPF2_STRAP2, data); + } } static u32 nbio_v4_3_get_rom_offset(struct amdgpu_device *adev) |