On 12/04/12 22:14, Rafal Prylowski wrote:
>
> Add IDE driver platform support code for ep93xx.
>
> Signed-off-by: Rafal Prylowski <prylowski@xxxxxxxxxxx>
> Cc: H Hartley Sweeten <hsweeten@xxxxxxxxxxxxxxxxxxx>
> Cc: Ryan Mallon <rmallon@xxxxxxxxx>
Applied to ep93xx-devel. Sorry for the delay.
~Ryan
> ---
> arch/arm/mach-ep93xx/core.c | 96 +++++++++++++++++
> arch/arm/mach-ep93xx/include/mach/platform.h | 3
> arch/arm/mach-ep93xx/soc.h | 1
>
> Index: linux-2.6/arch/arm/mach-ep93xx/soc.h
> ===================================================================
> --- linux-2.6.orig/arch/arm/mach-ep93xx/soc.h
> +++ linux-2.6/arch/arm/mach-ep93xx/soc.h
> @@ -69,6 +69,7 @@
>
> #define EP93XX_BOOT_ROM_BASE EP93XX_AHB_IOMEM(0x00090000)
>
> +#define EP93XX_IDE_PHYS_BASE EP93XX_AHB_PHYS(0x000a0000)
> #define EP93XX_IDE_BASE EP93XX_AHB_IOMEM(0x000a0000)
>
> #define EP93XX_VIC1_BASE EP93XX_AHB_IOMEM(0x000b0000)
> Index: linux-2.6/arch/arm/mach-ep93xx/core.c
> ===================================================================
> --- linux-2.6.orig/arch/arm/mach-ep93xx/core.c
> +++ linux-2.6/arch/arm/mach-ep93xx/core.c
> @@ -868,6 +868,102 @@ static struct platform_device ep93xx_wdt
> .resource = ep93xx_wdt_resources,
> };
>
> +/*************************************************************************
> + * EP93xx IDE
> + *************************************************************************/
> +static struct resource ep93xx_ide_resources[] = {
> + DEFINE_RES_MEM(EP93XX_IDE_PHYS_BASE, 0x38),
> + DEFINE_RES_IRQ(IRQ_EP93XX_EXT3),
> +};
> +
> +static struct platform_device ep93xx_ide_device = {
> + .name = "ep93xx-ide",
> + .id = -1,
> + .dev = {
> + .dma_mask = &ep93xx_ide_device.dev.coherent_dma_mask,
> + .coherent_dma_mask = DMA_BIT_MASK(32),
> + },
> + .num_resources = ARRAY_SIZE(ep93xx_ide_resources),
> + .resource = ep93xx_ide_resources,
> +};
> +
> +void __init ep93xx_register_ide(void)
> +{
> + platform_device_register(&ep93xx_ide_device);
> +}
> +
> +int ep93xx_ide_acquire_gpio(struct platform_device *pdev)
> +{
> + int err;
> + int i;
> +
> + err = gpio_request(EP93XX_GPIO_LINE_EGPIO2, dev_name(&pdev->dev));
> + if (err)
> + return err;
> + err = gpio_request(EP93XX_GPIO_LINE_EGPIO15, dev_name(&pdev->dev));
> + if (err)
> + goto fail_egpio15;
> + for (i = 2; i < 8; i++) {
> + err = gpio_request(EP93XX_GPIO_LINE_E(i), dev_name(&pdev->dev));
> + if (err)
> + goto fail_gpio_e;
> + }
> + for (i = 4; i < 8; i++) {
> + err = gpio_request(EP93XX_GPIO_LINE_G(i), dev_name(&pdev->dev));
> + if (err)
> + goto fail_gpio_g;
> + }
> + for (i = 0; i < 8; i++) {
> + err = gpio_request(EP93XX_GPIO_LINE_H(i), dev_name(&pdev->dev));
> + if (err)
> + goto fail_gpio_h;
> + }
> +
> + /* GPIO ports E[7:2], G[7:4] and H used by IDE */
> + ep93xx_devcfg_clear_bits(EP93XX_SYSCON_DEVCFG_EONIDE |
> + EP93XX_SYSCON_DEVCFG_GONIDE |
> + EP93XX_SYSCON_DEVCFG_HONIDE);
> + return 0;
> +
> +fail_gpio_h:
> + for (--i; i >= 0; --i)
> + gpio_free(EP93XX_GPIO_LINE_H(i));
> + i = 8;
> +fail_gpio_g:
> + for (--i; i >= 4; --i)
> + gpio_free(EP93XX_GPIO_LINE_G(i));
> + i = 8;
> +fail_gpio_e:
> + for (--i; i >= 2; --i)
> + gpio_free(EP93XX_GPIO_LINE_E(i));
> + gpio_free(EP93XX_GPIO_LINE_EGPIO15);
> +fail_egpio15:
> + gpio_free(EP93XX_GPIO_LINE_EGPIO2);
> + return err;
> +}
> +EXPORT_SYMBOL(ep93xx_ide_acquire_gpio);
> +
> +void ep93xx_ide_release_gpio(struct platform_device *pdev)
> +{
> + int i;
> +
> + for (i = 2; i < 8; i++)
> + gpio_free(EP93XX_GPIO_LINE_E(i));
> + for (i = 4; i < 8; i++)
> + gpio_free(EP93XX_GPIO_LINE_G(i));
> + for (i = 0; i < 8; i++)
> + gpio_free(EP93XX_GPIO_LINE_H(i));
> + gpio_free(EP93XX_GPIO_LINE_EGPIO15);
> + gpio_free(EP93XX_GPIO_LINE_EGPIO2);
> +
> +
> + /* GPIO ports E[7:2], G[7:4] and H used by GPIO */
> + ep93xx_devcfg_set_bits(EP93XX_SYSCON_DEVCFG_EONIDE |
> + EP93XX_SYSCON_DEVCFG_GONIDE |
> + EP93XX_SYSCON_DEVCFG_HONIDE);
> +}
> +EXPORT_SYMBOL(ep93xx_ide_release_gpio);
> +
> void __init ep93xx_init_devices(void)
> {
> /* Disallow access to MaverickCrunch initially */
> Index: linux-2.6/arch/arm/mach-ep93xx/include/mach/platform.h
> ===================================================================
> --- linux-2.6.orig/arch/arm/mach-ep93xx/include/mach/platform.h
> +++ linux-2.6/arch/arm/mach-ep93xx/include/mach/platform.h
> @@ -48,6 +48,9 @@ void ep93xx_register_i2s(void);
> int ep93xx_i2s_acquire(void);
> void ep93xx_i2s_release(void);
> void ep93xx_register_ac97(void);
> +void ep93xx_register_ide(void);
> +int ep93xx_ide_acquire_gpio(struct platform_device *pdev);
> +void ep93xx_ide_release_gpio(struct platform_device *pdev);
>
> void ep93xx_init_devices(void);
> extern struct sys_timer ep93xx_timer;
--
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