From 52658fda7abc4319ff7f8fe934d2e7c0a32202d7 Mon Sep 17 00:00:00 2001 From: Nikita Kiryanov Date: Wed, 20 Aug 2014 15:08:52 +0300 Subject: compulab: eeprom: add support for defining eeprom i2c bus Create CONFIG_SYS_I2C_EEPROM_BUS #define to tell the EEPROM module what I2C bus the EEPROM is located at. Make cl_eeprom_read() switch to that bus when reading EEPROM. Cc: Igor Grinberg Cc: Dmitry Lifshitz Cc: Tom Rini Cc: Marek Vasut Acked-by: Igor Grinberg Acked-by: Dmitry Lifshitz Reviewed-by: Marek Vasut Signed-off-by: Nikita Kiryanov --- board/compulab/common/eeprom.c | 13 ++++++++++++- 1 file changed, 12 insertions(+), 1 deletion(-) (limited to 'board') diff --git a/board/compulab/common/eeprom.c b/board/compulab/common/eeprom.c index 20fe3e1960..85442cd103 100644 --- a/board/compulab/common/eeprom.c +++ b/board/compulab/common/eeprom.c @@ -31,8 +31,19 @@ static int cl_eeprom_layout; /* Implicitly LAYOUT_INVALID */ static int cl_eeprom_read(uint offset, uchar *buf, int len) { - return i2c_read(CONFIG_SYS_I2C_EEPROM_ADDR, offset, + int res; + unsigned int current_i2c_bus = i2c_get_bus_num(); + + res = i2c_set_bus_num(CONFIG_SYS_I2C_EEPROM_BUS); + if (res < 0) + return res; + + res = i2c_read(CONFIG_SYS_I2C_EEPROM_ADDR, offset, CONFIG_SYS_I2C_EEPROM_ADDR_LEN, buf, len); + + i2c_set_bus_num(current_i2c_bus); + + return res; } static int cl_eeprom_setup_layout(void) -- cgit v1.2.1