diff options
Diffstat (limited to 'arch/arm/mach-davinci/usb.c')
| -rw-r--r-- | arch/arm/mach-davinci/usb.c | 103 |
1 files changed, 93 insertions, 10 deletions
diff --git a/arch/arm/mach-davinci/usb.c b/arch/arm/mach-davinci/usb.c index abedb6337182..23d2b6d9fa63 100644 --- a/arch/arm/mach-davinci/usb.c +++ b/arch/arm/mach-davinci/usb.c @@ -1,20 +1,21 @@ /* * USB */ -#include <linux/kernel.h> -#include <linux/module.h> #include <linux/init.h> #include <linux/platform_device.h> #include <linux/dma-mapping.h> #include <linux/usb/musb.h> -#include <linux/usb/otg.h> #include <mach/common.h> -#include <mach/hardware.h> #include <mach/irqs.h> +#include <mach/cputype.h> +#include <mach/usb.h> -#define DAVINCI_USB_OTG_BASE 0x01C64000 +#define DAVINCI_USB_OTG_BASE 0x01c64000 + +#define DA8XX_USB0_BASE 0x01e00000 +#define DA8XX_USB1_BASE 0x01e25000 #if defined(CONFIG_USB_MUSB_HDRC) || defined(CONFIG_USB_MUSB_HDRC_MODULE) static struct musb_hdrc_eps_bits musb_eps[] = { @@ -63,13 +64,19 @@ static struct resource usb_resources[] = { { .start = IRQ_USBINT, .flags = IORESOURCE_IRQ, + .name = "mc" + }, + { + /* placeholder for the dedicated CPPI IRQ */ + .flags = IORESOURCE_IRQ, + .name = "dma" }, }; static u64 usb_dmamask = DMA_BIT_MASK(32); static struct platform_device usb_dev = { - .name = "musb_hdrc", + .name = "musb-davinci", .id = -1, .dev = { .platform_data = &usb_data, @@ -80,18 +87,94 @@ static struct platform_device usb_dev = { .num_resources = ARRAY_SIZE(usb_resources), }; -void __init setup_usb(unsigned mA, unsigned potpgt_msec) +void __init davinci_setup_usb(unsigned mA, unsigned potpgt_ms) { - usb_data.power = mA / 2; - usb_data.potpgt = potpgt_msec / 2; + usb_data.power = mA > 510 ? 255 : mA / 2; + usb_data.potpgt = (potpgt_ms + 1) / 2; + + if (cpu_is_davinci_dm646x()) { + /* Override the defaults as DM6467 uses different IRQs. */ + usb_dev.resource[1].start = IRQ_DM646X_USBINT; + usb_dev.resource[2].start = IRQ_DM646X_USBDMAINT; + } else /* other devices don't have dedicated CPPI IRQ */ + usb_dev.num_resources = 2; + platform_device_register(&usb_dev); } +#ifdef CONFIG_ARCH_DAVINCI_DA8XX +static struct resource da8xx_usb20_resources[] = { + { + .start = DA8XX_USB0_BASE, + .end = DA8XX_USB0_BASE + SZ_64K - 1, + .flags = IORESOURCE_MEM, + }, + { + .start = IRQ_DA8XX_USB_INT, + .flags = IORESOURCE_IRQ, + .name = "mc", + }, +}; + +int __init da8xx_register_usb20(unsigned mA, unsigned potpgt) +{ + usb_data.clock = "usb20"; + usb_data.power = mA > 510 ? 255 : mA / 2; + usb_data.potpgt = (potpgt + 1) / 2; + + usb_dev.resource = da8xx_usb20_resources; + usb_dev.num_resources = ARRAY_SIZE(da8xx_usb20_resources); + usb_dev.name = "musb-da8xx"; + + return platform_device_register(&usb_dev); +} +#endif /* CONFIG_DAVINCI_DA8XX */ + #else -void __init setup_usb(unsigned mA, unsigned potpgt_msec) +void __init davinci_setup_usb(unsigned mA, unsigned potpgt_ms) +{ +} + +#ifdef CONFIG_ARCH_DAVINCI_DA8XX +int __init da8xx_register_usb20(unsigned mA, unsigned potpgt) { + return 0; } +#endif #endif /* CONFIG_USB_MUSB_HDRC */ +#ifdef CONFIG_ARCH_DAVINCI_DA8XX +static struct resource da8xx_usb11_resources[] = { + [0] = { + .start = DA8XX_USB1_BASE, + .end = DA8XX_USB1_BASE + SZ_4K - 1, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = IRQ_DA8XX_IRQN, + .end = IRQ_DA8XX_IRQN, + .flags = IORESOURCE_IRQ, + }, +}; + +static u64 da8xx_usb11_dma_mask = DMA_BIT_MASK(32); + +static struct platform_device da8xx_usb11_device = { + .name = "ohci", + .id = 0, + .dev = { + .dma_mask = &da8xx_usb11_dma_mask, + .coherent_dma_mask = DMA_BIT_MASK(32), + }, + .num_resources = ARRAY_SIZE(da8xx_usb11_resources), + .resource = da8xx_usb11_resources, +}; + +int __init da8xx_register_usb11(struct da8xx_ohci_root_hub *pdata) +{ + da8xx_usb11_device.dev.platform_data = pdata; + return platform_device_register(&da8xx_usb11_device); +} +#endif /* CONFIG_DAVINCI_DA8XX */ |