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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 | |
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>
-rw-r--r-- | board/compulab/common/eeprom.c | 13 | ||||
-rw-r--r-- | include/configs/cm_t335.h | 1 | ||||
-rw-r--r-- | include/configs/cm_t35.h | 1 | ||||
-rw-r--r-- | include/configs/cm_t54.h | 1 |
4 files changed, 15 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) diff --git a/include/configs/cm_t335.h b/include/configs/cm_t335.h index a3e6452..767ef3a 100644 --- a/include/configs/cm_t335.h +++ b/include/configs/cm_t335.h @@ -107,6 +107,7 @@ /* I2C Configuration */ #define CONFIG_SYS_I2C_EEPROM_ADDR 0x50 /* Main EEPROM */ #define CONFIG_SYS_I2C_EEPROM_ADDR_LEN 1 +#define CONFIG_SYS_I2C_EEPROM_BUS 0 /* SPL */ #define CONFIG_SPL_LDSCRIPT "$(CPUDIR)/am33xx/u-boot-spl.lds" diff --git a/include/configs/cm_t35.h b/include/configs/cm_t35.h index 70df1eb..6f4d97f 100644 --- a/include/configs/cm_t35.h +++ b/include/configs/cm_t35.h @@ -135,6 +135,7 @@ #define CONFIG_SYS_I2C_OMAP34XX #define CONFIG_SYS_I2C_EEPROM_ADDR 0x50 #define CONFIG_SYS_I2C_EEPROM_ADDR_LEN 1 +#define CONFIG_SYS_I2C_EEPROM_BUS 0 #define CONFIG_I2C_MULTI_BUS /* diff --git a/include/configs/cm_t54.h b/include/configs/cm_t54.h index df93a59..641ab48 100644 --- a/include/configs/cm_t54.h +++ b/include/configs/cm_t54.h @@ -30,6 +30,7 @@ #define CONFIG_SYS_I2C_OMAP34XX #define CONFIG_SYS_I2C_EEPROM_ADDR 0x50 #define CONFIG_SYS_I2C_EEPROM_ADDR_LEN 1 +#define CONFIG_SYS_I2C_EEPROM_BUS 0 /* Enable SD/MMC CD and WP GPIOs */ #define OMAP_HSMMC_USE_GPIO |