[U-Boot] [PATCH] mpc5200: digsy_mtc: fix extension board EEPROM I2C address for rev5

[Anatolij Gustschin]

On newer rev5 hardware the extension board EEPROM I2C address
has been changed to 0x54. Make this I2C address configurable
depending on CONFIG_DIGSY_REV5 so that extention board presence
detection works correctly on newer hardware.

Signed-off-by: Anatolij Gustschin <agust at denx.de>
---
 board/intercontrol/digsy_mtc/digsy_mtc.c |    5 +----
 include/configs/digsy_mtc.h              |    7 +++++++
 2 files changed, 8 insertions(+), 4 deletions(-)

diff --git a/board/intercontrol/digsy_mtc/digsy_mtc.c b/board/intercontrol/digsy_mtc/digsy_mtc.c
index 784ba2a..4d6b33d 100644
--- a/board/intercontrol/digsy_mtc/digsy_mtc.c
+++ b/board/intercontrol/digsy_mtc/digsy_mtc.c
@@ -220,9 +220,6 @@ int checkboard(void)
 
 #define GPT_GPIO_ON		0x00000034	/* GPT as simple GPIO, high */
 
-/* ExBo I2C Addresses */
-#define EXBO_EE_I2C_ADDRESS	0x56
-
 static void exbo_hw_init(void)
 {
 	struct mpc5xxx_gpt *gpt = (struct mpc5xxx_gpt *)MPC5XXX_GPT;
@@ -232,7 +229,7 @@ static void exbo_hw_init(void)
 	unsigned char val;
 
 	/* 1st, check if extension board is present */
-	if (i2c_read(EXBO_EE_I2C_ADDRESS, 0, 1, &val, 1))
+	if (i2c_read(CONFIG_SYS_EXBO_EE_I2C_ADDRESS, 0, 1, &val, 1))
 		return;
 
 	/* configure IrDA pins (PSC6 port) as gpios */
diff --git a/include/configs/digsy_mtc.h b/include/configs/digsy_mtc.h
index 40ab631..1e52299 100644
--- a/include/configs/digsy_mtc.h
+++ b/include/configs/digsy_mtc.h
@@ -293,6 +293,13 @@
 #define CONFIG_SYS_DS1339_TCR_VAL	0xAB	/* diode + 4k resistor */
 #endif
 
+/* ExBo I2C Addresses */
+#if defined(CONFIG_DIGSY_REV5)
+#define CONFIG_SYS_EXBO_EE_I2C_ADDRESS	0x54
+#else
+#define CONFIG_SYS_EXBO_EE_I2C_ADDRESS	0x56
+#endif
+
 /*
  * Flash configuration
  */
-- 
1.7.1