[U-Boot] [PATCH 1/2] ppc4xx: Switch to I2C bus numer 0 for chip_config command

[Stefan Roese <sr@denx.de>]

All currently available 4xx derivats have the I2C bootstrap EEPROM
located on I2C bus number 0. This patch now first sets this bus number,
so that the chip_config command also works for board with multiple
I2C busses, like Katmai.

Signed-off-by: Stefan Roese <sr@denx.de>
---
 cpu/ppc4xx/cmd_chip_config.c |    6 ++++++
 1 files changed, 6 insertions(+), 0 deletions(-)

diff --git a/cpu/ppc4xx/cmd_chip_config.c b/cpu/ppc4xx/cmd_chip_config.c
index d360d5b..ba57211 100644
--- a/cpu/ppc4xx/cmd_chip_config.c
+++ b/cpu/ppc4xx/cmd_chip_config.c
@@ -52,6 +52,12 @@ static int do_chip_config(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 	int cur_config_nr = -1;
 	u8 cur_config[CONFIG_4xx_CONFIG_BLOCKSIZE];
 
+	/*
+	 * First switch to correct I2C bus. This is I2C bus 0
+	 * for all currently available 4xx derivats.
+	 */
+	I2C_SET_BUS(0);
+
 #ifdef CONFIG_CMD_EEPROM
 	ret = eeprom_read(CONFIG_4xx_CONFIG_I2C_EEPROM_ADDR,
 			  CONFIG_4xx_CONFIG_I2C_EEPROM_OFFSET,
-- 
1.6.5.2