[6/6] platform/x86/amd/pmc: Modify SMU message port for latest AMD platform

Commit Message

Shyam Sundar S K Dec. 26, 2023, 8:20 a.m. UTC

The latest platforms use a different SMU message port(0x938) from the one
currently being used (0x538). Make code changes to adapt to this new
information.

Signed-off-by: Sanket Goswami <[e-mail]>
Signed-off-by: Shyam Sundar S K <[e-mail]>
---
 drivers/platform/x86/amd/pmc/pmc.c | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

Patch

diff --git a/drivers/platform/x86/amd/pmc/pmc.c b/drivers/platform/x86/amd/pmc/pmc.c
index c8d86dd392ce..acac2a4194d4 100644
--- a/drivers/platform/x86/amd/pmc/pmc.c
+++ b/drivers/platform/x86/amd/pmc/pmc.c
@@ -31,7 +31,6 @@ 
 #include "pmc.h"
 
 /* SMU communication registers */
-#define AMD_PMC_REGISTER_MESSAGE	0x538
 #define AMD_PMC_REGISTER_RESPONSE	0x980
 #define AMD_PMC_REGISTER_ARGUMENT	0x9BC
 
@@ -362,14 +361,17 @@  static void amd_pmc_get_ip_info(struct amd_pmc_dev *dev)
 	case AMD_CPU_ID_CB:
 		dev->num_ips = 12;
 		dev->s2d_msg_id = 0xBE;
+		dev->smu_msg = 0x538;
 		break;
 	case AMD_CPU_ID_PS:
 		dev->num_ips = 21;
 		dev->s2d_msg_id = 0x85;
+		dev->smu_msg = 0x538;
 		break;
 	case PCI_DEVICE_ID_AMD_1AH_M20H_ROOT:
 		dev->num_ips = 22;
 		dev->s2d_msg_id = 0xDE;
+		dev->smu_msg = 0x938;
 		break;
 	}
 }
@@ -673,7 +675,7 @@  static void amd_pmc_dump_registers(struct amd_pmc_dev *dev)
 		argument = AMD_S2D_REGISTER_ARGUMENT;
 		response = AMD_S2D_REGISTER_RESPONSE;
 	} else {
-		message = AMD_PMC_REGISTER_MESSAGE;
+		message = dev->smu_msg;
 		argument = AMD_PMC_REGISTER_ARGUMENT;
 		response = AMD_PMC_REGISTER_RESPONSE;
 	}
@@ -700,7 +702,7 @@  static int amd_pmc_send_cmd(struct amd_pmc_dev *dev, u32 arg, u32 *data, u8 msg,
 		argument = AMD_S2D_REGISTER_ARGUMENT;
 		response = AMD_S2D_REGISTER_RESPONSE;
 	} else {
-		message = AMD_PMC_REGISTER_MESSAGE;
+		message = dev->smu_msg;
 		argument = AMD_PMC_REGISTER_ARGUMENT;
 		response = AMD_PMC_REGISTER_RESPONSE;
 	}