[U-Boot] [PATCH 15/17] eeprom: Add bus argument to eeprom_init()

[Heiko Schocher <hs@denx.de>]

Hello Marek,

Am 10.11.2015 um 20:53 schrieb Marek Vasut:
> 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>
> ---
>   common/cmd_eeprom.c | 6 ++++--
>   common/env_eeprom.c | 4 ++--
>   include/common.h    | 2 +-
>   3 files changed, 7 insertions(+), 5 deletions(-)

Reviewed-by: Heiko Schocher <hs@denx.de>

bye,
Heiko
>
> diff --git a/common/cmd_eeprom.c b/common/cmd_eeprom.c
> index d0942ef..9247036 100644
> --- a/common/cmd_eeprom.c
> +++ b/common/cmd_eeprom.c
> @@ -60,7 +60,7 @@ __weak int eeprom_write_enable(unsigned dev_addr, int state)
>   	return 0;
>   }
>
> -void eeprom_init(void)
> +void eeprom_init(int bus)
>   {
>   	/* SPI EEPROM */
>   #if defined(CONFIG_SPI) && !defined(CONFIG_ENV_EEPROM_IS_ON_I2C)
> @@ -69,6 +69,8 @@ void eeprom_init(void)
>
>   	/* I2C EEPROM */
>   #if defined(CONFIG_HARD_I2C) || defined(CONFIG_SYS_I2C_SOFT)
> +	if (bus >= 0)
> +		i2c_set_bus_num(bus);
>   	i2c_init(CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE);
>   #endif
>   }
> @@ -223,7 +225,7 @@ static int do_eeprom(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
>   	off = simple_strtoul(*args++, NULL, 16);
>   	cnt = simple_strtoul(*args++, NULL, 16);
>
> -	eeprom_init();
> +	eeprom_init(-1);
>
>   	if (strcmp (argv[1], "read") == 0) {
>   		printf(fmt, dev_addr, argv[1], addr, off, cnt);
> diff --git a/common/env_eeprom.c b/common/env_eeprom.c
> index eea169d..72b1373 100644
> --- a/common/env_eeprom.c
> +++ b/common/env_eeprom.c
> @@ -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,
> diff --git a/include/common.h b/include/common.h
> index ceb1ad3..39ba5c9 100644
> --- a/include/common.h
> +++ b/include/common.h
> @@ -475,7 +475,7 @@ void	reset_phy     (void);
>   void	fdc_hw_init   (void);
>
>   /* $(BOARD)/eeprom.c */
> -void eeprom_init  (void);
> +void eeprom_init  (int bus);
>   int  eeprom_read  (unsigned dev_addr, unsigned offset, uchar *buffer, unsigned cnt);
>   int  eeprom_write (unsigned dev_addr, unsigned offset, uchar *buffer, unsigned cnt);
>
>

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