New patch to review for coreboot: AMD Bettong: Add a special case for SPD address of rev F

[Zheng Bao]

Zheng Bao ([e-mail]) just uploaded a new patch set to gerrit, which you can find at http://review.coreboot.org/12342

-gerrit

commit ff9fa136c8c0281e1467a01b9a00842c74cad7e7
Author: zbao 
Date:   Fri Nov 6 17:56:53 2015 +0800

AMD Bettong: Add a special case for SPD address of rev F

Rev F's SPD address is different from other revision.

0   1
    Channel A  A0  A2
    Channel B  A4  AC

Change-Id: I620d1f9c295f9a0e30e3821ea36a05dd9f7d3495
    Signed-off-by: WANG Siyuan 
    Signed-off-by: WANG Siyuan 
    Signed-off-by: Zheng Bao 
---
 src/mainboard/amd/bettong/BiosCallOuts.c  | 12 ++++++++++++
 src/northbridge/amd/pi/00660F01/dimmSpd.c |  7 +++++++
 src/northbridge/amd/pi/dimmSpd.h          |  2 ++
 3 files changed, 21 insertions(+)

diff --git a/src/mainboard/amd/bettong/BiosCallOuts.c b/src/mainboard/amd/bettong/BiosCallOuts.c
index 77d29ce..652bb52 100644
--- a/src/mainboard/amd/bettong/BiosCallOuts.c
+++ b/src/mainboard/amd/bettong/BiosCallOuts.c
@@ -27,6 +27,7 @@
 #include "hudson.h"
 #include <stdlib.h>
 #include "BiosCallOuts.h"
+#include "northbridge/amd/pi/dimmSpd.h"
 #include "northbridge/amd/pi/agesawrapper.h"
 #include <boardid.h>

@@ -96,6 +97,17 @@ AGESA_STATUS Fch_Oem_config(UINT32 Func, UINT32 FchData, VOID *ConfigPtr)

/* NOTE: Only for Bettong. */
 #ifdef __PRE_RAM__
+void mainboard_spdaddress_callback(int *spd_address, int socket, int channel, int dimm)
+{
+	UINT8 spdAddrLookup_rev_F [2][2][4]= {
+		{ {0xA0, 0xA2}, {0xA4, 0xAC}, }, // socket 0 - Channel 0 & 1 - 8-bit SPD addresses
+		{ {0x00, 0x00}, {0x00, 0x00}, }, // socket 1 - Channel 0 & 1 - 8-bit SPD addresses
+	};
+	if (board_id() == 'F') {
+		*spd_address = spdAddrLookup_rev_F[socket][channel][dimm];
+	}
+}
+
 TECHNOLOGY_TYPE get_mainboard_dimmtype(void)
 {
    if (board_id() == 'F') {
diff --git a/src/northbridge/amd/pi/00660F01/dimmSpd.c b/src/northbridge/amd/pi/00660F01/dimmSpd.c
index 5c81f36..afaea0d 100644
--- a/src/northbridge/amd/pi/00660F01/dimmSpd.c
+++ b/src/northbridge/amd/pi/00660F01/dimmSpd.c
@@ -24,6 +24,11 @@
 #include "chip.h"
 #include "northbridge/amd/pi/dimmSpd.h"

+void __attribute__((weak)) mainboard_spdaddress_callback(int *spd_address, int socket, int channel, int dimm)
+{
+	/* empty */
+}
+
 AGESA_STATUS AmdMemoryReadSPD (UINT32 unused1, UINT32 unused2, AGESA_READ_SPD_PARAMS *info)
 {
    int spdAddress;
@@ -40,6 +45,8 @@ AGESA_STATUS AmdMemoryReadSPD (UINT32 unused1, UINT32 unused2, AGESA_READ_SPD_PA
    	return AGESA_ERROR;
    spdAddress = config->spdAddrLookup
    	[info->SocketId] [info->MemChannelId] [info->DimmId];
+
+	mainboard_spdaddress_callback(&spdAddress, info->SocketId, info->MemChannelId, info->DimmId);
    if (spdAddress == 0)
    	return AGESA_ERROR;
    int err = hudson_readSpd(spdAddress, (void *) info->Buffer, 128);
diff --git a/src/northbridge/amd/pi/dimmSpd.h b/src/northbridge/amd/pi/dimmSpd.h
index 8e49b7c..aa5ad62 100644
--- a/src/northbridge/amd/pi/dimmSpd.h
+++ b/src/northbridge/amd/pi/dimmSpd.h
@@ -23,4 +23,6 @@ int hudson_readSpd(int spdAddress, char *buf, size_t len);

int smbus_readSpd(int spdAddress, char *buf, size_t len);

+void mainboard_spdaddress_callback(int *spd_address, int socket, int channel, int dimm);
+
 #endif