[U-Boot-Users] [PATCH 05/10] [ARM] TQMA31: add support for I2C, I2C temperature sensor and I2C-EEPROM

Jean-Christophe PLAGNIOL-VILLARD
2008-07-08T10:36:01Z

> #if defined(CONFIG_DISPLAY_CPUINFO)
> int print_cpuinfo (void)
> {
> diff --git a/drivers/i2c/mxc_i2c.c b/drivers/i2c/mxc_i2c.c
> index 6f9306f..68d2720 100644
> --- a/drivers/i2c/mxc_i2c.c
> +++ b/drivers/i2c/mxc_i2c.c
> @@ -209,4 +209,17 @@ int i2c_write(uchar chip, uint addr, int alen, uchar *buf, int len)
> return 0;
> }
>
> +int i2c_get_bus_speed(void)
> +{
> + return -1;
> +}
> +
> +int i2c_set_bus_speed (unsigned int speed)
> +{
> + if (speed != CFG_I2C_SPEED)
> + return -1;
> +
> + return 0;
> +}
why do you refuse to change the i2c bus speed?
> +
> #endif /* CONFIG_HARD_I2C */
> diff --git a/include/asm-arm/arch-mx31/mx31-regs.h b/include/asm-arm/arch-mx31/mx31-regs.h
> index ea15108..c0e516f 100644
> --- a/include/asm-arm/arch-mx31/mx31-regs.h
> +++ b/include/asm-arm/arch-mx31/mx31-regs.h
> @@ -168,6 +168,9 @@
>
> extern u32 mx31_get_ipg_clk(void);
> extern void mx31_gpio_mux(unsigned long mode);
> +extern void mx31_pad_ctl (u32 field, u32 val);
>
> #endif /* __ASM_ARCH_MX31_H */
> diff --git a/include/configs/TQMA31.h b/include/configs/TQMA31.h
> index 255355d..f96fd74 100644
> --- a/include/configs/TQMA31.h
> +++ b/include/configs/TQMA31.h
> @@ -154,6 +154,43 @@
>
>
> /*******************************************************************************
> + * I2C
> + ******************************************************************************/
> +
> +/* Use the processor internal controller */
> +#define CONFIG_HARD_I2C
> +#define CONFIG_I2C_MXC
> +
> +/* Configure I2C1 */
> +#define CFG_I2C_MX31_PORT1
> +
> +#define CFG_I2C_SPEED 100000
please use tab instead of whitespace
> +#define CFG_I2C_SLAVE 0
please use tab instead of whitespace
> +
> +/* Don't probe these addrs */
> +#define CFG_I2C_NOPROBES {0x00}
> +
Best Regards,
J.