X-Git-Url: https://git.sur5r.net/?a=blobdiff_plain;f=drivers%2Fi2c%2Fsoft_i2c.c;h=69b5f42205f427255344ad55913896d426774464;hb=5eb522a68c3573419f42e321dccf4b01b584dbe8;hp=e0cf1e10db574830f3fd16838637d3c7ef891215;hpb=0cf0b93161beb3f3ed5e37e6112aedf15da17e8a;p=u-boot diff --git a/drivers/i2c/soft_i2c.c b/drivers/i2c/soft_i2c.c index e0cf1e10db..69b5f42205 100644 --- a/drivers/i2c/soft_i2c.c +++ b/drivers/i2c/soft_i2c.c @@ -30,9 +30,7 @@ #include #include #endif -#if defined(CONFIG_AT91RM9200) || \ - defined(CONFIG_AT91SAM9260) || defined(CONFIG_AT91SAM9261) || \ - defined(CONFIG_AT91SAM9263) +#if defined(CONFIG_AT91FAMILY) #include #include #include @@ -51,6 +49,58 @@ #endif #include +#if defined(CONFIG_SOFT_I2C_GPIO_SCL) +# include + +# ifndef I2C_GPIO_SYNC +# define I2C_GPIO_SYNC +# endif + +# ifndef I2C_INIT +# define I2C_INIT \ + do { \ + gpio_request(CONFIG_SOFT_I2C_GPIO_SCL, "soft_i2c"); \ + gpio_request(CONFIG_SOFT_I2C_GPIO_SDA, "soft_i2c"); \ + } while (0) +# endif + +# ifndef I2C_ACTIVE +# define I2C_ACTIVE do { } while (0) +# endif + +# ifndef I2C_TRISTATE +# define I2C_TRISTATE do { } while (0) +# endif + +# ifndef I2C_READ +# define I2C_READ gpio_get_value(CONFIG_SOFT_I2C_GPIO_SDA) +# endif + +# ifndef I2C_SDA +# define I2C_SDA(bit) \ + do { \ + if (bit) \ + gpio_direction_input(CONFIG_SOFT_I2C_GPIO_SDA); \ + else \ + gpio_direction_output(CONFIG_SOFT_I2C_GPIO_SDA, 0); \ + I2C_GPIO_SYNC; \ + } while (0) +# endif + +# ifndef I2C_SCL +# define I2C_SCL(bit) \ + do { \ + gpio_direction_output(CONFIG_SOFT_I2C_GPIO_SCL, bit); \ + I2C_GPIO_SYNC; \ + } while (0) +# endif + +# ifndef I2C_DELAY +# define I2C_DELAY udelay(5) /* 1/4 I2C clock duration */ +# endif + +#endif + /* #define DEBUG_I2C */ #ifdef DEBUG_I2C