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eeprom: Add bus argument to eeprom_init()

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Add bus argument to eeprom_init(), so that it can select
the I2C bus number on which the eeprom resides. Any negative
value of the $bus argument will preserve the old behavior.
This is in place so that old code does not randomly break.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Simon Glass <sjg@chromium.org>
Cc: Tom Rini <trini@konsulko.com>
Cc: Heiko Schocher <hs@denx.de>
Reviewed-by: Heiko Schocher <hs@denx.de>
[trini: Wrap i2c_set_bus_num() call with CONFIG_SYS_I2C test]
Signed-off-by: Tom Rini <trini@konsulko.com>
This commit is contained in:
Marek Vasut
2015-11-10 20:53:31 +01:00
committed by Tom Rini
parent 1a37889b0a
commit 354e3ed754
3 changed files with 9 additions and 5 deletions
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common/env_eeprom.c
+2 -2
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@@ -91,7 +91,7 @@ void env_relocate_spec(void)
uchar rdbuf[64], flags[2];
int i, crc_ok[2] = {0, 0};
eeprom_init(); /* prepare for EEPROM read/write */
eeprom_init(-1); /* prepare for EEPROM read/write */
off_env[0] = CONFIG_ENV_OFFSET;
off_env[1] = CONFIG_ENV_OFFSET_REDUND;
@@ -154,7 +154,7 @@ void env_relocate_spec(void)
ulong crc, len, new;
uchar rdbuf[64];
eeprom_init(); /* prepare for EEPROM read/write */
eeprom_init(-1); /* prepare for EEPROM read/write */
/* read old CRC */
eeprom_bus_read(CONFIG_SYS_DEF_EEPROM_ADDR,