[U-Boot-Users] [PATCH] I2C EEPROM simulator (Resubmit)

[Michal Simek <monstr@seznam.cz>]

still coding style issues.

M

> This driver provides access to a simulated i2c eeprom.
> This simulated eeprom could be very useful in boards with
> ddr2 memories and no i2c interfaces.
> 
> Using this driver the user can simulate a spd eeprom
> of a ddr2 memory and use the ddr2 auto config.
> 
> User can use the macros CONFIG_EEPROM_SIMUL_LEN
> and CONFIG_EEPROM_SIMUL_DATA to define the content
> of the simulated eeprom
> 
> Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@uam.es>
> ---
>  drivers/i2c/Makefile       |    1 +
>  drivers/i2c/eeprom_simul.c |   68 ++++++++++++++++++++++++++++++++++++++++++++
>  2 files changed, 69 insertions(+), 0 deletions(-)
>  create mode 100644 drivers/i2c/eeprom_simul.c
> 
> diff --git a/drivers/i2c/Makefile b/drivers/i2c/Makefile
> index 534c015..2aeabe5 100644
> --- a/drivers/i2c/Makefile
> +++ b/drivers/i2c/Makefile
> @@ -30,6 +30,7 @@ COBJS-y += omap1510_i2c.o
>  COBJS-y += omap24xx_i2c.o
>  COBJS-y += tsi108_i2c.o
>  COBJS-y += mxc_i2c.o
> +COBJS-$(CONFIG_EEPROM_SIMUL) += eeprom_simul.o
>  
>  COBJS	:= $(COBJS-y)
>  SRCS	:= $(COBJS:.o=.c)
> diff --git a/drivers/i2c/eeprom_simul.c b/drivers/i2c/eeprom_simul.c
> new file mode 100644
> index 0000000..d8dbb3b
> --- /dev/null
> +++ b/drivers/i2c/eeprom_simul.c
> @@ -0,0 +1,68 @@
> +/*
> +    (C) Copyright 2008
> +    Ricado Ribalda-Universidad Autonoma de Madrid-ricardo.ribalda at uam.es
> +    This work has been supported by: QTechnology  http://qtec.com/
> +
> +    This program is free software: you can redistribute it and/or modify
> +    it under the terms of the GNU General Public License as published by
> +    the Free Software Foundation, either version 2 of the License, or
> +    (at your option) any later version.
> +
> +    This program is distributed in the hope that it will be useful,
> +    but WITHOUT ANY WARRANTY; without even the implied warranty of
> +    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
> +    GNU General Public License for more details.
> +
> +    You should have received a copy of the GNU General Public License
> +    along with this program.  If not, see <http://www.gnu.org/licenses/>.
> +*/
> +
> +#include <common.h>
> +#include <i2c.h>
> +
> +#ifndef CONFIG_EEPROM_SIMUL_LEN
> +#define CONFIG_EEPROM_SIMUL_LEN 256
> +#endif
> +
> +u8 eeprom_simul_buffer[CONFIG_EEPROM_SIMUL_LEN]
> +#ifdef CONFIG_EEPROM_SIMUL_DATA
> +       = CONFIG_EEPROM_SIMUL_DATA
> +#endif
> +;
> +
> +void i2c_init(int speed, int slaveaddr){
> +       return ;
> +}
> +
> +int i2c_read(uchar chip, uint addr, int alen, uchar * buffer, int len)
> +{
> +       int i;
> +
> +       if (addr+len>CONFIG_EEPROM_SIMUL_LEN)
> +               return -1;
> +
> +       for(i=0;i<len;i++){
> +               buffer[i]=eeprom_simul_buffer[i+addr];
> +       }
> +
> +       return 0;
> +}
> +int i2c_write(uchar chip, uint addr, int alen, uchar * buffer, int len)
> +{
> +       int i;
> +
> +       if (addr+len>CONFIG_EEPROM_SIMUL_LEN)
> +               return -1;
> +
> +       for(i=0;i<len;i++){
> +               eeprom_simul_buffer[i+addr]=buffer[i];
> +       }
> +
> +       return 0;
> +}
> +
> +int i2c_probe(uchar chip)
> +{
> +       return 0;
> +}
> +