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mpc5200: digsy_mtc: fix extension board EEPROM I2C address for rev5

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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>
This commit is contained in:
Anatolij Gustschin 2011-08-01 04:16:29 +00:00 committed by Wolfgang Denk
parent 780f13a9e1
commit eccfb49046
2 changed files with 8 additions and 4 deletions
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5
board/intercontrol/digsy_mtc/digsy_mtc.c
View file

@ -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 */

7
include/configs/digsy_mtc.h
View file

@ -288,6 +288,13 @@
#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
*/