[U-Boot] [PATCH 1/1] board: ge: bx50v3: fix initialization of i2c bus0

[U-Boot] [PATCH 1/1] board: ge: bx50v3: fix initialization of i2c bus0

[Fabien Lahoudere]

From: Dan Cimpoca <dan.I.cimpoca@ge.com>

I2C bus 0 was not initialized correctly. There is an offset between i2c
index and the structure number of pad info. So i2c bus 0 can be in an
inconsistent state.

This problem become visible on B{4,6}50v3 with the CPUC HW watchdog enabled.
Sometimes when the CPUC HW watchdog interrupted the boot process, U-Boot was
not able to read VPD from I2C/EEPROM and the system failed to boot up again,
because a device connected to that bus was stuck in data transfer state (from
previous boot attempt) and there was no method to recover (struct
mxc_i2c_bus::idle_bus_fn was not set) courtesy of incorrect initialization.

Signed-off-by: Dan Cimpoca <dan.I.cimpoca@ge.com>
Signed-off-by: Fabien Lahoudere <fabien.lahoudere@collabora.com>
---
 board/ge/bx50v3/bx50v3.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/board/ge/bx50v3/bx50v3.c b/board/ge/bx50v3/bx50v3.c
index 2eb1b65..2458525 100644
--- a/board/ge/bx50v3/bx50v3.c
+++ b/board/ge/bx50v3/bx50v3.c
@@ -714,9 +714,9 @@ static void set_confidx(const struct vpd_cache* vpd)
 
 int board_init(void)
 {
-	setup_i2c(1, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info1);
-	setup_i2c(2, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info2);
-	setup_i2c(3, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info3);
+	setup_i2c(0, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info1);
+	setup_i2c(1, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info2);
+	setup_i2c(2, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info3);
 
 	read_vpd(CONFIG_SYS_I2C_EEPROM_BUS);
 
-- 
1.8.3.1