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authorLinus Torvalds <torvalds@linux-foundation.org>2008-10-11 10:09:45 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2008-10-11 10:09:45 -0700
commit7cc4e87f912bbefa440a51856b8d076e5d1f554a (patch)
tree1b8df8683f3de37d2e8211ffa8d151f60d59af62 /arch/arm/mach-davinci/usb.c
parentsecurity: avoid calling a NULL function pointer in drivers/video/tvaudio.c (diff)
parent[ARM] 5300/1: fixup spitz reset during boot (diff)
downloadlinux-dev-7cc4e87f912bbefa440a51856b8d076e5d1f554a.tar.xz
linux-dev-7cc4e87f912bbefa440a51856b8d076e5d1f554a.zip
Merge branch 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm
* 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm: (236 commits) [ARM] 5300/1: fixup spitz reset during boot [ARM] 5295/1: make ZONE_DMA optional [ARM] 5239/1: Palm Zire 72 power management support [ARM] 5298/1: Drop desc_handle_irq() [ARM] 5297/1: [KS8695] Fix two compile-time warnings [ARM] 5296/1: [KS8695] Replace macro's with trailing underscores. [ARM] pxa: allow multi-machine PCMCIA builds [ARM] pxa: add preliminary CPUFREQ support for PXA3xx [ARM] pxa: add missing ACCR bit definitions to pxa3xx-regs.h [ARM] pxa: rename cpu-pxa.c to cpufreq-pxa2xx.c [ARM] pxa/zylonite: add support for USB OHCI [ARM] ohci-pxa27x: use ioremap() and offset for register access [ARM] ohci-pxa27x: introduce pxa27x_clear_otgph() [ARM] ohci-pxa27x: use platform_get_{irq,resource} for the resource [ARM] ohci-pxa27x: move OHCI controller specific registers into the driver [ARM] ohci-pxa27x: introduce flags to avoid direct access to OHCI registers [ARM] pxa: move I2S register and bit definitions into pxa2xx-i2s.c [ARM] pxa: simplify DMA register definitions [ARM] pxa: make additional DCSR bits valid for PXA3xx [ARM] pxa: move i2c register and bit definitions into i2c-pxa.c ... Fixed up conflicts in arch/arm/mach-versatile/core.c sound/soc/pxa/pxa2xx-ac97.c sound/soc/pxa/pxa2xx-i2s.c manually.
Diffstat (limited to 'arch/arm/mach-davinci/usb.c')
-rw-r--r--arch/arm/mach-davinci/usb.c116
1 files changed, 116 insertions, 0 deletions
diff --git a/arch/arm/mach-davinci/usb.c b/arch/arm/mach-davinci/usb.c
new file mode 100644
index 000000000000..fe182a85159c
--- /dev/null
+++ b/arch/arm/mach-davinci/usb.c
@@ -0,0 +1,116 @@
+/*
+ * 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>
+
+#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
+ .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,
+ },
+};
+
+static u64 usb_dmamask = DMA_32BIT_MASK;
+
+static struct platform_device usb_dev = {
+ .name = "musb_hdrc",
+ .id = -1,
+ .dev = {
+ .platform_data = &usb_data,
+ .dma_mask = &usb_dmamask,
+ .coherent_dma_mask = DMA_32BIT_MASK,
+ },
+ .resource = usb_resources,
+ .num_resources = ARRAY_SIZE(usb_resources),
+};
+
+#ifdef CONFIG_USB_MUSB_OTG
+
+static struct otg_transceiver *xceiv;
+
+struct otg_transceiver *otg_get_transceiver(void)
+{
+ if (xceiv)
+ get_device(xceiv->dev);
+ return xceiv;
+}
+EXPORT_SYMBOL(otg_get_transceiver);
+
+int otg_set_transceiver(struct otg_transceiver *x)
+{
+ if (xceiv && x)
+ return -EBUSY;
+ xceiv = x;
+ return 0;
+}
+EXPORT_SYMBOL(otg_set_transceiver);
+
+#endif
+
+void __init setup_usb(unsigned mA, unsigned potpgt_msec)
+{
+ usb_data.power = mA / 2;
+ usb_data.potpgt = potpgt_msec / 2;
+ platform_device_register(&usb_dev);
+}
+
+#else
+
+void __init setup_usb(unsigned mA, unsigned potpgt_msec)
+{
+}
+
+#endif /* CONFIG_USB_MUSB_HDRC */
+