[U-Boot] [PATCH 16/22][v2] armv8/ls2085ardb: Fix SPD address error on early boards

Prabhakar Kushwaha
2015-05-28T09:24:09Z

From: York Sun <yorksun@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@freescale.com>
Signed-off-by: Prabhakar Kushwaha <prabhakar@freescale.com>
---
Changes for v2: sending as it is for patch set

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 5f25328..abe2114 100644
--- a/board/freescale/ls2085ardb/ls2085ardb.c
+++ b/board/freescale/ls2085ardb/ls2085ardb.c
@@ -273,3 +273,22 @@ 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