[U-Boot] [PATCH] i2c: samsung: register i2c busses for Exynso5420 and Exynos5250
Naveen Krishna Ch
naveenkrishna.ch at gmail.com
Mon Nov 25 12:31:03 CET 2013
Hello All,
On 25 November 2013 16:58, Naveen Krishna Chatradhi
<ch.naveen at samsung.com> wrote:
> This patch adds the U_BOOT_I2C_ADAP_COMPLETE defines for channels
> on Exynos5420 and Exynos5250 and also adds support for init function
> for hsi2c channels
>
> Signed-off-by: Naveen Krishna Chatradhi <ch.naveen at samsung.com>
> ---
> README | 6 ++
> drivers/i2c/s3c24x0_i2c.c | 222 +++++++++++++++++++++++++++++++++++----------
> 2 files changed, 180 insertions(+), 48 deletions(-)
>
> diff --git a/README b/README
> index c97ff0a..c04e352 100644
> --- a/README
> +++ b/README
> @@ -2076,6 +2076,12 @@ CBFS (Coreboot Filesystem) support
> - set CONFIG_SYS_I2C_ZYNQ_SPEED for speed setting
> - set CONFIG_SYS_I2C_ZYNQ_SLAVE for slave addr
>
> + - drivers/i2c/s3c24x0_i2c.c:
> + - activate this driver with CONFIG_SYS_I2C_S3C24X0
> + - This driver adds i2c buses (11 for Exynos5250, Exynos5420
> + 9 i2c buses for Exynos4 and 1 for S3C24X0 SoCs from Samsung)
> + with a fix speed from 100000 and the slave addr 0!
> +
> additional defines:
>
> CONFIG_SYS_NUM_I2C_BUSES
> diff --git a/drivers/i2c/s3c24x0_i2c.c b/drivers/i2c/s3c24x0_i2c.c
> index 1e9dba0..6e719ec 100644
> --- a/drivers/i2c/s3c24x0_i2c.c
> +++ b/drivers/i2c/s3c24x0_i2c.c
> @@ -721,6 +721,15 @@ static unsigned int s3c24x0_i2c_set_bus_speed(struct i2c_adapter *adap,
> return 0;
> }
>
> +static void exynos_i2c_init(struct i2c_adapter *adap, int speed, int slaveaddr)
> +{
> + /* This will override the speed selected in the fdt for that port */
> + debug("i2c_init(speed=%u, slaveaddr=0x%x)\n", speed, slaveaddr);
> + if (i2c_set_bus_speed(speed))
> + printf("i2c_init: failed to init bus %d for speed = %d\n",
> + adap->hwadapnr, speed);
> +}
> +
> /*
> * cmd_type is 0 for write, 1 for read.
> *
> @@ -1071,51 +1080,168 @@ int i2c_reset_port_fdt(const void *blob, int node)
> /*
> * Register s3c24x0 i2c adapters
> */
> -U_BOOT_I2C_ADAP_COMPLETE(s3c24x0_0, s3c24x0_i2c_init, s3c24x0_i2c_probe,
> - s3c24x0_i2c_read, s3c24x0_i2c_write,
> - s3c24x0_i2c_set_bus_speed,
> - CONFIG_SYS_I2C_S3C24X0_SPEED,
> - CONFIG_SYS_I2C_S3C24X0_SLAVE,
> - 0)
> -U_BOOT_I2C_ADAP_COMPLETE(s3c24x0_1, s3c24x0_i2c_init, s3c24x0_i2c_probe,
> - s3c24x0_i2c_read, s3c24x0_i2c_write,
> - s3c24x0_i2c_set_bus_speed,
> - CONFIG_SYS_I2C_S3C24X0_SPEED,
> - CONFIG_SYS_I2C_S3C24X0_SLAVE,
> - 1)
> -U_BOOT_I2C_ADAP_COMPLETE(s3c24x0_2, s3c24x0_i2c_init, s3c24x0_i2c_probe,
> - s3c24x0_i2c_read, s3c24x0_i2c_write,
> - s3c24x0_i2c_set_bus_speed,
> - CONFIG_SYS_I2C_S3C24X0_SPEED,
> - CONFIG_SYS_I2C_S3C24X0_SLAVE,
> - 2)
> -U_BOOT_I2C_ADAP_COMPLETE(s3c24x0_3, s3c24x0_i2c_init, s3c24x0_i2c_probe,
> - s3c24x0_i2c_read, s3c24x0_i2c_write,
> - s3c24x0_i2c_set_bus_speed,
> - CONFIG_SYS_I2C_S3C24X0_SPEED,
> - CONFIG_SYS_I2C_S3C24X0_SLAVE,
> - 3)
> -U_BOOT_I2C_ADAP_COMPLETE(s3c24x0_4, s3c24x0_i2c_init, s3c24x0_i2c_probe,
> - s3c24x0_i2c_read, s3c24x0_i2c_write,
> - s3c24x0_i2c_set_bus_speed,
> - CONFIG_SYS_I2C_S3C24X0_SPEED,
> - CONFIG_SYS_I2C_S3C24X0_SLAVE,
> - 4)
> -U_BOOT_I2C_ADAP_COMPLETE(s3c24x0_5, s3c24x0_i2c_init, s3c24x0_i2c_probe,
> - s3c24x0_i2c_read, s3c24x0_i2c_write,
> - s3c24x0_i2c_set_bus_speed,
> - CONFIG_SYS_I2C_S3C24X0_SPEED,
> - CONFIG_SYS_I2C_S3C24X0_SLAVE,
> - 5)
> -U_BOOT_I2C_ADAP_COMPLETE(s3c24x0_6, s3c24x0_i2c_init, s3c24x0_i2c_probe,
> - s3c24x0_i2c_read, s3c24x0_i2c_write,
> - s3c24x0_i2c_set_bus_speed,
> - CONFIG_SYS_I2C_S3C24X0_SPEED,
> - CONFIG_SYS_I2C_S3C24X0_SLAVE,
> - 6)
> -U_BOOT_I2C_ADAP_COMPLETE(s3c24x0_7, s3c24x0_i2c_init, s3c24x0_i2c_probe,
> - s3c24x0_i2c_read, s3c24x0_i2c_write,
> - s3c24x0_i2c_set_bus_speed,
> - CONFIG_SYS_I2C_S3C24X0_SPEED,
> - CONFIG_SYS_I2C_S3C24X0_SLAVE,
> - 7)
> +#if defined(CONFIG_EXYNOS5420)
> +U_BOOT_I2C_ADAP_COMPLETE(i2c00, s3c24x0_i2c_init, s3c24x0_i2c_probe,
> + s3c24x0_i2c_read, s3c24x0_i2c_write,
> + s3c24x0_i2c_set_bus_speed,
> + CONFIG_SYS_I2C_S3C24X0_SPEED,
> + CONFIG_SYS_I2C_S3C24X0_SLAVE, 0)
> +U_BOOT_I2C_ADAP_COMPLETE(i2c01, s3c24x0_i2c_init, s3c24x0_i2c_probe,
> + s3c24x0_i2c_read, s3c24x0_i2c_write,
> + s3c24x0_i2c_set_bus_speed,
> + CONFIG_SYS_I2C_S3C24X0_SPEED,
> + CONFIG_SYS_I2C_S3C24X0_SLAVE, 1)
> +U_BOOT_I2C_ADAP_COMPLETE(i2c02, s3c24x0_i2c_init, s3c24x0_i2c_probe,
> + s3c24x0_i2c_read, s3c24x0_i2c_write,
> + s3c24x0_i2c_set_bus_speed,
> + CONFIG_SYS_I2C_S3C24X0_SPEED,
> + CONFIG_SYS_I2C_S3C24X0_SLAVE, 2)
> +U_BOOT_I2C_ADAP_COMPLETE(i2c03, exynos_i2c_init, s3c24x0_i2c_probe,
> + s3c24x0_i2c_read, s3c24x0_i2c_write,
> + s3c24x0_i2c_set_bus_speed,
> + CONFIG_SYS_I2C_S3C24X0_SPEED,
> + CONFIG_SYS_I2C_S3C24X0_SLAVE, 3)
> +U_BOOT_I2C_ADAP_COMPLETE(i2c04, exynos_i2c_init, s3c24x0_i2c_probe,
> + s3c24x0_i2c_read, s3c24x0_i2c_write,
> + s3c24x0_i2c_set_bus_speed,
> + CONFIG_SYS_I2C_S3C24X0_SPEED,
> + CONFIG_SYS_I2C_S3C24X0_SLAVE, 4)
> +U_BOOT_I2C_ADAP_COMPLETE(i2c05, exynos_i2c_init, s3c24x0_i2c_probe,
> + s3c24x0_i2c_read, s3c24x0_i2c_write,
> + s3c24x0_i2c_set_bus_speed,
> + CONFIG_SYS_I2C_S3C24X0_SPEED,
> + CONFIG_SYS_I2C_S3C24X0_SLAVE, 5)
> +U_BOOT_I2C_ADAP_COMPLETE(i2c06, exynos_i2c_init, s3c24x0_i2c_probe,
> + s3c24x0_i2c_read, s3c24x0_i2c_write,
> + s3c24x0_i2c_set_bus_speed,
> + CONFIG_SYS_I2C_S3C24X0_SPEED,
> + CONFIG_SYS_I2C_S3C24X0_SLAVE, 6)
> +U_BOOT_I2C_ADAP_COMPLETE(i2c07, exynos_i2c_init, s3c24x0_i2c_probe,
> + s3c24x0_i2c_read, s3c24x0_i2c_write,
> + s3c24x0_i2c_set_bus_speed,
> + CONFIG_SYS_I2C_S3C24X0_SPEED,
> + CONFIG_SYS_I2C_S3C24X0_SLAVE, 7)
> +U_BOOT_I2C_ADAP_COMPLETE(i2c08, exynos_i2c_init, s3c24x0_i2c_probe,
> + s3c24x0_i2c_read, s3c24x0_i2c_write,
> + s3c24x0_i2c_set_bus_speed,
> + CONFIG_SYS_I2C_S3C24X0_SPEED,
> + CONFIG_SYS_I2C_S3C24X0_SLAVE, 8)
> +U_BOOT_I2C_ADAP_COMPLETE(i2c09, exynos_i2c_init, s3c24x0_i2c_probe,
> + s3c24x0_i2c_read, s3c24x0_i2c_write,
> + s3c24x0_i2c_set_bus_speed,
> + CONFIG_SYS_I2C_S3C24X0_SPEED,
> + CONFIG_SYS_I2C_S3C24X0_SLAVE, 9)
> +U_BOOT_I2C_ADAP_COMPLETE(i2c10, exynos_i2c_init, s3c24x0_i2c_probe,
> + s3c24x0_i2c_read, s3c24x0_i2c_write,
> + s3c24x0_i2c_set_bus_speed,
> + CONFIG_SYS_I2C_S3C24X0_SPEED,
> + CONFIG_SYS_I2C_S3C24X0_SLAVE, 10)
> +#elif defined(CONFIG_EXYNOS5250)
> +U_BOOT_I2C_ADAP_COMPLETE(i2c00, exynos_i2c_init, s3c24x0_i2c_probe,
> + s3c24x0_i2c_read, s3c24x0_i2c_write,
> + s3c24x0_i2c_set_bus_speed,
> + CONFIG_SYS_I2C_S3C24X0_SPEED,
> + CONFIG_SYS_I2C_S3C24X0_SLAVE, 0)
> +U_BOOT_I2C_ADAP_COMPLETE(i2c01, exynos_i2c_init, s3c24x0_i2c_probe,
> + s3c24x0_i2c_read, s3c24x0_i2c_write,
> + s3c24x0_i2c_set_bus_speed,
> + CONFIG_SYS_I2C_S3C24X0_SPEED,
> + CONFIG_SYS_I2C_S3C24X0_SLAVE, 1)
> +U_BOOT_I2C_ADAP_COMPLETE(i2c02, exynos_i2c_init, s3c24x0_i2c_probe,
> + s3c24x0_i2c_read, s3c24x0_i2c_write,
> + s3c24x0_i2c_set_bus_speed,
> + CONFIG_SYS_I2C_S3C24X0_SPEED,
> + CONFIG_SYS_I2C_S3C24X0_SLAVE, 2)
> +U_BOOT_I2C_ADAP_COMPLETE(i2c03, exynos_i2c_init, s3c24x0_i2c_probe,
> + s3c24x0_i2c_read, s3c24x0_i2c_write,
> + s3c24x0_i2c_set_bus_speed,
> + CONFIG_SYS_I2C_S3C24X0_SPEED,
> + CONFIG_SYS_I2C_S3C24X0_SLAVE, 3)
> +U_BOOT_I2C_ADAP_COMPLETE(i2c04, s3c24x0_i2c_init, s3c24x0_i2c_probe,
> + s3c24x0_i2c_read, s3c24x0_i2c_write,
> + s3c24x0_i2c_set_bus_speed,
> + CONFIG_SYS_I2C_S3C24X0_SPEED,
> + CONFIG_SYS_I2C_S3C24X0_SLAVE, 4)
> +U_BOOT_I2C_ADAP_COMPLETE(i2c05, s3c24x0_i2c_init, s3c24x0_i2c_probe,
> + s3c24x0_i2c_read, s3c24x0_i2c_write,
> + s3c24x0_i2c_set_bus_speed,
> + CONFIG_SYS_I2C_S3C24X0_SPEED,
> + CONFIG_SYS_I2C_S3C24X0_SLAVE, 5)
> +U_BOOT_I2C_ADAP_COMPLETE(i2c06, s3c24x0_i2c_init, s3c24x0_i2c_probe,
> + s3c24x0_i2c_read, s3c24x0_i2c_write,
> + s3c24x0_i2c_set_bus_speed,
> + CONFIG_SYS_I2C_S3C24X0_SPEED,
> + CONFIG_SYS_I2C_S3C24X0_SLAVE, 6)
> +U_BOOT_I2C_ADAP_COMPLETE(i2c07, s3c24x0_i2c_init, s3c24x0_i2c_probe,
> + s3c24x0_i2c_read, s3c24x0_i2c_write,
> + s3c24x0_i2c_set_bus_speed,
> + CONFIG_SYS_I2C_S3C24X0_SPEED,
> + CONFIG_SYS_I2C_S3C24X0_SLAVE, 7)
> +U_BOOT_I2C_ADAP_COMPLETE(i2c08, s3c24x0_i2c_init, s3c24x0_i2c_probe,
> + s3c24x0_i2c_read, s3c24x0_i2c_write,
> + s3c24x0_i2c_set_bus_speed,
> + CONFIG_SYS_I2C_S3C24X0_SPEED,
> + CONFIG_SYS_I2C_S3C24X0_SLAVE, 8)
> +U_BOOT_I2C_ADAP_COMPLETE(i2c09, s3c24x0_i2c_init, s3c24x0_i2c_probe,
> + s3c24x0_i2c_read, s3c24x0_i2c_write,
> + s3c24x0_i2c_set_bus_speed,
> + CONFIG_SYS_I2C_S3C24X0_SPEED,
> + CONFIG_SYS_I2C_S3C24X0_SLAVE, 9)
> +U_BOOT_I2C_ADAP_COMPLETE(s3c10, s3c24x0_i2c_init, s3c24x0_i2c_probe,
> + s3c24x0_i2c_read, s3c24x0_i2c_write,
> + s3c24x0_i2c_set_bus_speed,
> + CONFIG_SYS_I2C_S3C24X0_SPEED,
> + CONFIG_SYS_I2C_S3C24X0_SLAVE, 10)
> +#elif defined(CONFIG_EXYNOS4)
> +U_BOOT_I2C_ADAP_COMPLETE(i2c00, s3c24x0_i2c_init, s3c24x0_i2c_probe,
> + s3c24x0_i2c_read, s3c24x0_i2c_write,
> + s3c24x0_i2c_set_bus_speed,
> + CONFIG_SYS_I2C_S3C24X0_SPEED,
> + CONFIG_SYS_I2C_S3C24X0_SLAVE, 0)
> +U_BOOT_I2C_ADAP_COMPLETE(i2c01, s3c24x0_i2c_init, s3c24x0_i2c_probe,
> + s3c24x0_i2c_read, s3c24x0_i2c_write,
> + s3c24x0_i2c_set_bus_speed,
> + CONFIG_SYS_I2C_S3C24X0_SPEED,
> + CONFIG_SYS_I2C_S3C24X0_SLAVE, 1)
> +U_BOOT_I2C_ADAP_COMPLETE(i2c02, s3c24x0_i2c_init, s3c24x0_i2c_probe,
> + s3c24x0_i2c_read, s3c24x0_i2c_write,
> + s3c24x0_i2c_set_bus_speed,
> + CONFIG_SYS_I2C_S3C24X0_SPEED,
> + CONFIG_SYS_I2C_S3C24X0_SLAVE, 2)
> +U_BOOT_I2C_ADAP_COMPLETE(i2c03, s3c24x0_i2c_init, s3c24x0_i2c_probe,
> + s3c24x0_i2c_read, s3c24x0_i2c_write,
> + s3c24x0_i2c_set_bus_speed,
> + CONFIG_SYS_I2C_S3C24X0_SPEED,
> + CONFIG_SYS_I2C_S3C24X0_SLAVE, 3)
> +U_BOOT_I2C_ADAP_COMPLETE(i2c04, s3c24x0_i2c_init, s3c24x0_i2c_probe,
> + s3c24x0_i2c_read, s3c24x0_i2c_write,
> + s3c24x0_i2c_set_bus_speed,
> + CONFIG_SYS_I2C_S3C24X0_SPEED,
> + CONFIG_SYS_I2C_S3C24X0_SLAVE, 4)
> +U_BOOT_I2C_ADAP_COMPLETE(i2c05, s3c24x0_i2c_init, s3c24x0_i2c_probe,
> + s3c24x0_i2c_read, s3c24x0_i2c_write,
> + s3c24x0_i2c_set_bus_speed,
> + CONFIG_SYS_I2C_S3C24X0_SPEED,
> + CONFIG_SYS_I2C_S3C24X0_SLAVE, 5)
> +U_BOOT_I2C_ADAP_COMPLETE(i2c06, s3c24x0_i2c_init, s3c24x0_i2c_probe,
> + s3c24x0_i2c_read, s3c24x0_i2c_write,
> + s3c24x0_i2c_set_bus_speed,
> + CONFIG_SYS_I2C_S3C24X0_SPEED,
> + CONFIG_SYS_I2C_S3C24X0_SLAVE, 6)
> +U_BOOT_I2C_ADAP_COMPLETE(i2c07, s3c24x0_i2c_init, s3c24x0_i2c_probe,
> + s3c24x0_i2c_read, s3c24x0_i2c_write,
> + s3c24x0_i2c_set_bus_speed,
> + CONFIG_SYS_I2C_S3C24X0_SPEED,
> + CONFIG_SYS_I2C_S3C24X0_SLAVE, 7)
> +U_BOOT_I2C_ADAP_COMPLETE(i2c08, s3c24x0_i2c_init, s3c24x0_i2c_probe,
> + s3c24x0_i2c_read, s3c24x0_i2c_write,
> + s3c24x0_i2c_set_bus_speed,
> + CONFIG_SYS_I2C_S3C24X0_SPEED,
> + CONFIG_SYS_I2C_S3C24X0_SLAVE, 8
> +#else
> +U_BOOT_I2C_ADAP_COMPLETE(s3c0, s3c24x0_i2c_init, s3c24x0_i2c_probe,
> + s3c24x0_i2c_read, s3c24x0_i2c_write,
> + s3c24x0_i2c_set_bus_speed,
> + CONFIG_SYS_I2C_S3C24X0_SPEED,
> + CONFIG_SYS_I2C_S3C24X0_SLAVE, 0)
> +#endif
> --
> 1.7.10.4
These changes go on top of the
http://patchwork.ozlabs.org/patch/292706/ by Piotr
These changes were discussed earlier at
http://www.mail-archive.com/u-boot@lists.denx.de/msg126318.html
Tested Exynso5420 based SMDK5420 and build tested on
./MAKEALL -v samsung
>
--
Shine bright,
(: Nav :)
More information about the U-Boot
mailing list