[U-Boot] [PATCH 15/20] armv8/ls2085ardb: Fix SPD address error on early boards

[Prabhakar Kushwaha]

From: York Sun <yorksun at freescale.com>

Board rev C and earlier has duplicated SPD address on 2nd DDR
controller slots. It is fixed on rev D and later. SPD addresses
need to be updated accordingly.

Signed-off-by: York Sun <yorksun at freescale.com>
Signed-off-by: Prabhakar Kushwaha <prabhakar at freescale.com>
---
 board/freescale/ls2085ardb/ls2085ardb.c | 19 +++++++++++++++++++
 include/configs/ls2085ardb.h            |  4 ++--
 2 files changed, 21 insertions(+), 2 deletions(-)

diff --git a/board/freescale/ls2085ardb/ls2085ardb.c b/board/freescale/ls2085ardb/ls2085ardb.c
index 175943e..78efa32 100644
--- a/board/freescale/ls2085ardb/ls2085ardb.c
+++ b/board/freescale/ls2085ardb/ls2085ardb.c
@@ -277,3 +277,22 @@ void qixis_dump_switch(void)
 		printf("SW%d = (0x%02x)\n", i, QIXIS_READ(cms[1]));
 	}
 }
+
+/*
+ * Board rev C and earlier has duplicated I2C addresses for 2nd controller.
+ * Both slots has 0x54, resulting 2nd slot unusable.
+ */
+void update_spd_address(unsigned int ctrl_num,
+			unsigned int slot,
+			unsigned int *addr)
+{
+	u8 sw;
+
+	sw = QIXIS_READ(arch);
+	if ((sw & 0xf) < 0x3) {
+		if (ctrl_num == 1 && slot == 0)
+			*addr = SPD_EEPROM_ADDRESS4;
+		else if (ctrl_num == 1 && slot == 1)
+			*addr = SPD_EEPROM_ADDRESS3;
+	}
+}
diff --git a/include/configs/ls2085ardb.h b/include/configs/ls2085ardb.h
index 5a5884c..a0f0f6c 100644
--- a/include/configs/ls2085ardb.h
+++ b/include/configs/ls2085ardb.h
@@ -29,8 +29,8 @@ unsigned long get_board_sys_clk(void);
 #define CONFIG_MEM_INIT_VALUE		0xdeadbeef
 #define SPD_EEPROM_ADDRESS1	0x51
 #define SPD_EEPROM_ADDRESS2	0x52
-#define SPD_EEPROM_ADDRESS3	0x54
-#define SPD_EEPROM_ADDRESS4	0x53	/* Board error */
+#define SPD_EEPROM_ADDRESS3	0x53
+#define SPD_EEPROM_ADDRESS4	0x54
 #define SPD_EEPROM_ADDRESS5	0x55
 #define SPD_EEPROM_ADDRESS6	0x56	/* dummy address */
 #define SPD_EEPROM_ADDRESS	SPD_EEPROM_ADDRESS1
-- 
1.9.1