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@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 */