On Wed, Dec 05, 2012 at 09:34:12AM -0500, Robert P. J. Day wrote:
>
> Add and use meaningful macro names for OMAP4 GPIO addresses, and add a
> comment to explain the 0x100 offset for OMAP4.
>
> Signed-off-by: Robert P. J. Day <rpjday@xxxxxxxxxxxxxx>
Applied, thanks
Sascha
>
> ---
>
> diff --git a/arch/arm/mach-omap/include/mach/omap4-silicon.h b/arch/arm/mach-omap/include/mach/omap4-silicon.h
> index 71ffe39..008eafb 100644
> --- a/arch/arm/mach-omap/include/mach/omap4-silicon.h
> +++ b/arch/arm/mach-omap/include/mach/omap4-silicon.h
> @@ -101,6 +101,21 @@
> #define OMAP44XX_MMC4_BASE (OMAP44XX_L4_PER_BASE + 0x0D1100)
> #define OMAP44XX_MMC5_BASE (OMAP44XX_L4_PER_BASE + 0x0D5100)
>
> +/* GPIO
> + *
> + * Note that, while the GPIO controller is the same as on an OMAP3,
> + * the base address has an additional offset of 0x100, which you can
> + * see being added here so that the OMAP_GPIO_* macros you see in
> + * mach-omap/gpio.c don't need to be adjusted based on the platform.
> + */
> +
> +#define OMAP44XX_GPIO1_BASE (OMAP44XX_L4_WKUP_BASE + 0x10100)
> +#define OMAP44XX_GPIO2_BASE (OMAP44XX_L4_PER_BASE + 0x55100)
> +#define OMAP44XX_GPIO3_BASE (OMAP44XX_L4_PER_BASE + 0x57100)
> +#define OMAP44XX_GPIO4_BASE (OMAP44XX_L4_PER_BASE + 0x59100)
> +#define OMAP44XX_GPIO5_BASE (OMAP44XX_L4_PER_BASE + 0x5B100)
> +#define OMAP44XX_GPIO6_BASE (OMAP44XX_L4_PER_BASE + 0x5D100)
> +
> /* GPMC */
> #define OMAP_GPMC_BASE 0x50000000
>
> diff --git a/arch/arm/mach-omap/omap4_generic.c b/arch/arm/mach-omap/omap4_generic.c
> index c756664..dc1dbae 100644
> --- a/arch/arm/mach-omap/omap4_generic.c
> +++ b/arch/arm/mach-omap/omap4_generic.c
> @@ -611,17 +611,17 @@ const struct gpmc_config omap4_nand_cfg = {
>
> static int omap4_gpio_init(void)
> {
> - add_generic_device("omap-gpio", 0, NULL, 0x4a310100,
> + add_generic_device("omap-gpio", 0, NULL, OMAP44XX_GPIO1_BASE,
> 0xf00, IORESOURCE_MEM, NULL);
> - add_generic_device("omap-gpio", 1, NULL, 0x48055100,
> + add_generic_device("omap-gpio", 1, NULL, OMAP44XX_GPIO2_BASE,
> 0xf00, IORESOURCE_MEM, NULL);
> - add_generic_device("omap-gpio", 2, NULL, 0x48057100,
> + add_generic_device("omap-gpio", 2, NULL, OMAP44XX_GPIO3_BASE,
> 0xf00, IORESOURCE_MEM, NULL);
> - add_generic_device("omap-gpio", 3, NULL, 0x48059100,
> + add_generic_device("omap-gpio", 3, NULL, OMAP44XX_GPIO4_BASE,
> 0xf00, IORESOURCE_MEM, NULL);
> - add_generic_device("omap-gpio", 4, NULL, 0x4805b100,
> + add_generic_device("omap-gpio", 4, NULL, OMAP44XX_GPIO5_BASE,
> 0xf00, IORESOURCE_MEM, NULL);
> - add_generic_device("omap-gpio", 5, NULL, 0x4805d100,
> + add_generic_device("omap-gpio", 5, NULL, OMAP44XX_GPIO6_BASE,
> 0xf00, IORESOURCE_MEM, NULL);
>
> return 0;
>
> --
>
> ========================================================================
> Robert P. J. Day Ottawa, Ontario, CANADA
> http://crashcourse.ca
>
> Twitter: http://twitter.com/rpjday
> LinkedIn: http://ca.linkedin.com/in/rpjday
> ========================================================================
>
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