e5d3d252d5
Add the function to register the OHCI platform device, given the root hub related platform data passed from the board specific code. The platfrom data provide for overriding the OHCI port power and over-current bits at the board level. Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
146 lines
3.2 KiB
C
146 lines
3.2 KiB
C
/*
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* USB
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*/
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/init.h>
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#include <linux/platform_device.h>
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#include <linux/dma-mapping.h>
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#include <linux/usb/musb.h>
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#include <linux/usb/otg.h>
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#include <mach/common.h>
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#include <mach/hardware.h>
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#include <mach/irqs.h>
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#include <mach/cputype.h>
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#include <mach/usb.h>
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#define DAVINCI_USB_OTG_BASE 0x01c64000
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#define DA8XX_USB1_BASE 0x01e25000
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#if defined(CONFIG_USB_MUSB_HDRC) || defined(CONFIG_USB_MUSB_HDRC_MODULE)
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static struct musb_hdrc_eps_bits musb_eps[] = {
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{ "ep1_tx", 8, },
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{ "ep1_rx", 8, },
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{ "ep2_tx", 8, },
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{ "ep2_rx", 8, },
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{ "ep3_tx", 5, },
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{ "ep3_rx", 5, },
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{ "ep4_tx", 5, },
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{ "ep4_rx", 5, },
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};
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static struct musb_hdrc_config musb_config = {
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.multipoint = true,
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.dyn_fifo = true,
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.soft_con = true,
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.dma = true,
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.num_eps = 5,
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.dma_channels = 8,
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.ram_bits = 10,
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.eps_bits = musb_eps,
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};
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static struct musb_hdrc_platform_data usb_data = {
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#if defined(CONFIG_USB_MUSB_OTG)
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/* OTG requires a Mini-AB connector */
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.mode = MUSB_OTG,
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#elif defined(CONFIG_USB_MUSB_PERIPHERAL)
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.mode = MUSB_PERIPHERAL,
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#elif defined(CONFIG_USB_MUSB_HOST)
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.mode = MUSB_HOST,
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#endif
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.clock = "usb",
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.config = &musb_config,
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};
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static struct resource usb_resources[] = {
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{
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/* physical address */
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.start = DAVINCI_USB_OTG_BASE,
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.end = DAVINCI_USB_OTG_BASE + 0x5ff,
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.flags = IORESOURCE_MEM,
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},
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{
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.start = IRQ_USBINT,
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.flags = IORESOURCE_IRQ,
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},
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{
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/* placeholder for the dedicated CPPI IRQ */
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.flags = IORESOURCE_IRQ,
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},
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};
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static u64 usb_dmamask = DMA_BIT_MASK(32);
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static struct platform_device usb_dev = {
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.name = "musb_hdrc",
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.id = -1,
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.dev = {
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.platform_data = &usb_data,
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.dma_mask = &usb_dmamask,
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.coherent_dma_mask = DMA_BIT_MASK(32),
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},
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.resource = usb_resources,
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.num_resources = ARRAY_SIZE(usb_resources),
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};
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void __init setup_usb(unsigned mA, unsigned potpgt_msec)
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{
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usb_data.power = mA / 2;
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usb_data.potpgt = potpgt_msec / 2;
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if (cpu_is_davinci_dm646x()) {
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/* Override the defaults as DM6467 uses different IRQs. */
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usb_dev.resource[1].start = IRQ_DM646X_USBINT;
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usb_dev.resource[2].start = IRQ_DM646X_USBDMAINT;
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} else /* other devices don't have dedicated CPPI IRQ */
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usb_dev.num_resources = 2;
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platform_device_register(&usb_dev);
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}
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#else
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void __init setup_usb(unsigned mA, unsigned potpgt_msec)
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{
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}
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#endif /* CONFIG_USB_MUSB_HDRC */
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#ifdef CONFIG_ARCH_DAVINCI_DA8XX
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static struct resource da8xx_usb11_resources[] = {
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[0] = {
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.start = DA8XX_USB1_BASE,
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.end = DA8XX_USB1_BASE + SZ_4K - 1,
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.flags = IORESOURCE_MEM,
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},
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[1] = {
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.start = IRQ_DA8XX_IRQN,
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.end = IRQ_DA8XX_IRQN,
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.flags = IORESOURCE_IRQ,
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},
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};
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static u64 da8xx_usb11_dma_mask = DMA_BIT_MASK(32);
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static struct platform_device da8xx_usb11_device = {
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.name = "ohci",
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.id = 0,
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.dev = {
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.dma_mask = &da8xx_usb11_dma_mask,
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.coherent_dma_mask = DMA_BIT_MASK(32),
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},
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.num_resources = ARRAY_SIZE(da8xx_usb11_resources),
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.resource = da8xx_usb11_resources,
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};
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int __init da8xx_register_usb11(struct da8xx_ohci_root_hub *pdata)
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{
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da8xx_usb11_device.dev.platform_data = pdata;
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return platform_device_register(&da8xx_usb11_device);
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}
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#endif /* CONFIG_DAVINCI_DA8XX */
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