From 189d257b7ad9c6c9c84941be27de8e31a6e87e86 Mon Sep 17 00:00:00 2001 From: Christian Gmeiner Date: Wed, 11 Feb 2015 15:19:31 +0100 Subject: cmd_eeprom: make it possible to define the used i2c bus A SoC like the i.MX6 supports more then one i2c bus. In oder to be able to use the eeprom command add a new define to specify the i2c bus to use. If CONFIG_SYS_I2C_EEPROM_BUS is not defined there is no functional change, else a call to i2c_set_bus_num(..) is done before calling i2c_read(..) and i2c_write(..). Signed-off-by: Christian Gmeiner Acked-by: Stefano Babic --- common/cmd_eeprom.c | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'common/cmd_eeprom.c') diff --git a/common/cmd_eeprom.c b/common/cmd_eeprom.c index 29f0f1f784..e9904cd698 100644 --- a/common/cmd_eeprom.c +++ b/common/cmd_eeprom.c @@ -161,6 +161,9 @@ int eeprom_read (unsigned dev_addr, unsigned offset, uchar *buffer, unsigned cnt #if defined(CONFIG_SPI) && !defined(CONFIG_ENV_EEPROM_IS_ON_I2C) spi_read (addr, alen, buffer, len); #else +#if defined(CONFIG_SYS_I2C_EEPROM_BUS) + i2c_set_bus_num(CONFIG_SYS_I2C_EEPROM_BUS); +#endif if (i2c_read(addr[0], offset, alen - 1, buffer, len)) rcode = 1; #endif @@ -338,6 +341,9 @@ int eeprom_write (unsigned dev_addr, unsigned offset, uchar *buffer, unsigned cn } /* Write is enabled ... now write eeprom value. */ +#endif +#if defined(CONFIG_SYS_I2C_EEPROM_BUS) + i2c_set_bus_num(CONFIG_SYS_I2C_EEPROM_BUS); #endif if (i2c_write(addr[0], offset, alen - 1, buffer, len)) rcode = 1; -- cgit v1.2.3