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| author | Nikita Kiryanov <nikita@compulab.co.il> | 2014-08-20 15:08:52 +0300 |
|---|---|---|
| committer | Stefano Babic <sbabic@denx.de> | 2014-09-09 15:32:32 +0200 |
| commit | 52658fda7abc4319ff7f8fe934d2e7c0a32202d7 (patch) | |
| tree | 16f6a0edb0a856c39256e8ec539759cb7ccb3f4b /board/compulab/common | |
| parent | 224beb833e544b802f08765271cec07667d39669 (diff) | |
| download | u-boot-imx-52658fda7abc4319ff7f8fe934d2e7c0a32202d7.zip u-boot-imx-52658fda7abc4319ff7f8fe934d2e7c0a32202d7.tar.gz u-boot-imx-52658fda7abc4319ff7f8fe934d2e7c0a32202d7.tar.bz2 | |
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 <grinberg@compulab.co.il>
Cc: Dmitry Lifshitz <lifshitz@compulab.co.il>
Cc: Tom Rini <trini@ti.com>
Cc: Marek Vasut <marex@denx.de>
Acked-by: Igor Grinberg <grinberg@compulab.co.il>
Acked-by: Dmitry Lifshitz <lifshitz@compulab.co.il>
Reviewed-by: Marek Vasut <marex@denx.de>
Signed-off-by: Nikita Kiryanov <nikita@compulab.co.il>
Diffstat (limited to 'board/compulab/common')
| -rw-r--r-- | board/compulab/common/eeprom.c | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/board/compulab/common/eeprom.c b/board/compulab/common/eeprom.c index 20fe3e1..85442cd 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) |