zte's code,first commit
Change-Id: I9a04da59e459a9bc0d67f101f700d9d7dc8d681b
diff --git a/ap/os/linux/linux-3.4.x/arch/arm/mach-davinci/usb.c b/ap/os/linux/linux-3.4.x/arch/arm/mach-davinci/usb.c
new file mode 100644
index 0000000..23d2b6d
--- /dev/null
+++ b/ap/os/linux/linux-3.4.x/arch/arm/mach-davinci/usb.c
@@ -0,0 +1,180 @@
+/*
+ * USB
+ */
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/dma-mapping.h>
+
+#include <linux/usb/musb.h>
+
+#include <mach/common.h>
+#include <mach/irqs.h>
+#include <mach/cputype.h>
+#include <mach/usb.h>
+
+#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[] = {
+ { "ep1_tx", 8, },
+ { "ep1_rx", 8, },
+ { "ep2_tx", 8, },
+ { "ep2_rx", 8, },
+ { "ep3_tx", 5, },
+ { "ep3_rx", 5, },
+ { "ep4_tx", 5, },
+ { "ep4_rx", 5, },
+};
+
+static struct musb_hdrc_config musb_config = {
+ .multipoint = true,
+ .dyn_fifo = true,
+ .soft_con = true,
+ .dma = true,
+
+ .num_eps = 5,
+ .dma_channels = 8,
+ .ram_bits = 10,
+ .eps_bits = musb_eps,
+};
+
+static struct musb_hdrc_platform_data usb_data = {
+#if defined(CONFIG_USB_MUSB_OTG)
+ /* OTG requires a Mini-AB connector */
+ .mode = MUSB_OTG,
+#elif defined(CONFIG_USB_MUSB_PERIPHERAL)
+ .mode = MUSB_PERIPHERAL,
+#elif defined(CONFIG_USB_MUSB_HOST)
+ .mode = MUSB_HOST,
+#endif
+ .clock = "usb",
+ .config = &musb_config,
+};
+
+static struct resource usb_resources[] = {
+ {
+ /* physical address */
+ .start = DAVINCI_USB_OTG_BASE,
+ .end = DAVINCI_USB_OTG_BASE + 0x5ff,
+ .flags = IORESOURCE_MEM,
+ },
+ {
+ .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-davinci",
+ .id = -1,
+ .dev = {
+ .platform_data = &usb_data,
+ .dma_mask = &usb_dmamask,
+ .coherent_dma_mask = DMA_BIT_MASK(32),
+ },
+ .resource = usb_resources,
+ .num_resources = ARRAY_SIZE(usb_resources),
+};
+
+void __init davinci_setup_usb(unsigned mA, unsigned potpgt_ms)
+{
+ 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 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 */