gpu: nvgpu: backward support for HW2.5 Rev.A

Add backward support for HW2.5 Rev.A board:
- no INA3221 for voltage, current, and power
- use PG418 MCLK switching sequences

Allow VBIOS from .53 for PG419

Bug 1929155

Change-Id: Ifacfc8cff6d00f66af92305119d0f0d3b9a1e438
Reviewed-on: http://git-master/r/1497001
Signed-off-by: Thomas Fleury <tfleury@nvidia.com>
(cherry picked from commit 952778f814916b0b3d5043c43755bfccb467c3d4)
Reviewed-on: http://git-master/r/1497295
Reviewed-by: Automatic_Commit_Validation_User
Reviewed-by: svccoveritychecker <svccoveritychecker@nvidia.com>
GVS: Gerrit_Virtual_Submit
Reviewed-by: Vijayakumar Subbu <vsubbu@nvidia.com>

1 files changed, 10 insertions, 4 deletions

diff --git a/drivers/gpu/nvgpu/gm206/bios_gm206.c b/drivers/gpu/nvgpu/gm206/bios_gm206.c
index 0bc78724..c32959a3 100644
--- a/drivers/gpu/nvgpu/gm206/bios_gm206.c
+++ b/drivers/gpu/nvgpu/gm206/bios_gm206.c
@@ -23,6 +23,7 @@
 #include "gk20a/platform_gk20a.h"
 #include "gm20b/fifo_gm20b.h"
 #include "bios_gm206.h"
+#include "gp106/pmu_mclk_gp106.h"
 
 #include <nvgpu/hw/gm206/hw_pwr_gm206.h>
 #include <nvgpu/hw/gm206/hw_mc_gm206.h>
@@ -314,11 +315,16 @@ int gm206_bios_init(struct gk20a *g)
                 return -EINVAL;
         }
 
-        /* WAR for missing INA3221 on HW2.5 RevA */
-        g->power_sensor_missing =
-                (g->pci_vendor_id == PCI_VENDOR_ID_NVIDIA) &&
+        /* WAR for HW2.5 RevA (identified by VBIOS version)
+         * - INA3221 is missing
+         * - use PG418 MCLK switching sequences
+         */
+        if ((g->pci_vendor_id == PCI_VENDOR_ID_NVIDIA) &&
                 (g->pci_device_id == 0x1c75) &&
-                (g->gpu_characteristics.vbios_version == 0x86065300);
+                (g->gpu_characteristics.vbios_version == 0x86065300)) {
+                g->power_sensor_missing = true;
+                g->mem_config_idx = GP106_MEM_CONFIG_GDDR5_PG418;
+        }
 
 #ifdef CONFIG_DEBUG_FS
         g->bios_blob.data = g->bios.data;