USB: omap3: add platform init code for OHCI driver
Add platform init code for the OMAP3 OHCI driver.
Also, configure padconf settings for OMAP3 depending
on which port mode is used.
Signed-off-by: Anand Gadiyar <gadiyar@ti.com>
Cc: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
diff --git a/arch/arm/mach-omap2/usb-ehci.c b/arch/arm/mach-omap2/usb-ehci.c
index ee9f548..c68f799 100644
--- a/arch/arm/mach-omap2/usb-ehci.c
+++ b/arch/arm/mach-omap2/usb-ehci.c
@@ -236,3 +236,158 @@
#endif /* CONFIG_USB_EHCI_HCD */
+#if defined(CONFIG_USB_OHCI_HCD) || defined(CONFIG_USB_OHCI_HCD_MODULE)
+
+static struct resource ohci_resources[] = {
+ {
+ .start = OMAP34XX_OHCI_BASE,
+ .end = OMAP34XX_OHCI_BASE + SZ_1K - 1,
+ .flags = IORESOURCE_MEM,
+ },
+ {
+ .start = OMAP34XX_UHH_CONFIG_BASE,
+ .end = OMAP34XX_UHH_CONFIG_BASE + SZ_1K - 1,
+ .flags = IORESOURCE_MEM,
+ },
+ {
+ .start = OMAP34XX_USBTLL_BASE,
+ .end = OMAP34XX_USBTLL_BASE + SZ_4K - 1,
+ .flags = IORESOURCE_MEM,
+ },
+ { /* general IRQ */
+ .start = INT_34XX_OHCI_IRQ,
+ .flags = IORESOURCE_IRQ,
+ }
+};
+
+static u64 ohci_dmamask = DMA_BIT_MASK(32);
+
+static struct platform_device ohci_device = {
+ .name = "ohci-omap3",
+ .id = 0,
+ .dev = {
+ .dma_mask = &ohci_dmamask,
+ .coherent_dma_mask = 0xffffffff,
+ },
+ .num_resources = ARRAY_SIZE(ohci_resources),
+ .resource = ohci_resources,
+};
+
+static void setup_ohci_io_mux(const enum ohci_omap3_port_mode *port_mode)
+{
+ switch (port_mode[0]) {
+ case OMAP_OHCI_PORT_MODE_PHY_6PIN_DATSE0:
+ case OMAP_OHCI_PORT_MODE_PHY_6PIN_DPDM:
+ case OMAP_OHCI_PORT_MODE_TLL_6PIN_DATSE0:
+ case OMAP_OHCI_PORT_MODE_TLL_6PIN_DPDM:
+ omap_mux_init_signal("mm1_rxdp",
+ OMAP_PIN_INPUT_PULLDOWN);
+ omap_mux_init_signal("mm1_rxdm",
+ OMAP_PIN_INPUT_PULLDOWN);
+ /* FALLTHROUGH */
+ case OMAP_OHCI_PORT_MODE_PHY_4PIN_DPDM:
+ case OMAP_OHCI_PORT_MODE_TLL_4PIN_DPDM:
+ omap_mux_init_signal("mm1_rxrcv",
+ OMAP_PIN_INPUT_PULLDOWN);
+ /* FALLTHROUGH */
+ case OMAP_OHCI_PORT_MODE_PHY_3PIN_DATSE0:
+ case OMAP_OHCI_PORT_MODE_TLL_3PIN_DATSE0:
+ omap_mux_init_signal("mm1_txen_n", OMAP_PIN_OUTPUT);
+ /* FALLTHROUGH */
+ case OMAP_OHCI_PORT_MODE_TLL_2PIN_DATSE0:
+ case OMAP_OHCI_PORT_MODE_TLL_2PIN_DPDM:
+ omap_mux_init_signal("mm1_txse0",
+ OMAP_PIN_INPUT_PULLDOWN);
+ omap_mux_init_signal("mm1_txdat",
+ OMAP_PIN_INPUT_PULLDOWN);
+ break;
+ case OMAP_OHCI_PORT_MODE_UNUSED:
+ /* FALLTHROUGH */
+ default:
+ break;
+ }
+ switch (port_mode[1]) {
+ case OMAP_OHCI_PORT_MODE_PHY_6PIN_DATSE0:
+ case OMAP_OHCI_PORT_MODE_PHY_6PIN_DPDM:
+ case OMAP_OHCI_PORT_MODE_TLL_6PIN_DATSE0:
+ case OMAP_OHCI_PORT_MODE_TLL_6PIN_DPDM:
+ omap_mux_init_signal("mm2_rxdp",
+ OMAP_PIN_INPUT_PULLDOWN);
+ omap_mux_init_signal("mm2_rxdm",
+ OMAP_PIN_INPUT_PULLDOWN);
+ /* FALLTHROUGH */
+ case OMAP_OHCI_PORT_MODE_PHY_4PIN_DPDM:
+ case OMAP_OHCI_PORT_MODE_TLL_4PIN_DPDM:
+ omap_mux_init_signal("mm2_rxrcv",
+ OMAP_PIN_INPUT_PULLDOWN);
+ /* FALLTHROUGH */
+ case OMAP_OHCI_PORT_MODE_PHY_3PIN_DATSE0:
+ case OMAP_OHCI_PORT_MODE_TLL_3PIN_DATSE0:
+ omap_mux_init_signal("mm2_txen_n", OMAP_PIN_OUTPUT);
+ /* FALLTHROUGH */
+ case OMAP_OHCI_PORT_MODE_TLL_2PIN_DATSE0:
+ case OMAP_OHCI_PORT_MODE_TLL_2PIN_DPDM:
+ omap_mux_init_signal("mm2_txse0",
+ OMAP_PIN_INPUT_PULLDOWN);
+ omap_mux_init_signal("mm2_txdat",
+ OMAP_PIN_INPUT_PULLDOWN);
+ break;
+ case OMAP_OHCI_PORT_MODE_UNUSED:
+ /* FALLTHROUGH */
+ default:
+ break;
+ }
+ switch (port_mode[2]) {
+ case OMAP_OHCI_PORT_MODE_PHY_6PIN_DATSE0:
+ case OMAP_OHCI_PORT_MODE_PHY_6PIN_DPDM:
+ case OMAP_OHCI_PORT_MODE_TLL_6PIN_DATSE0:
+ case OMAP_OHCI_PORT_MODE_TLL_6PIN_DPDM:
+ omap_mux_init_signal("mm3_rxdp",
+ OMAP_PIN_INPUT_PULLDOWN);
+ omap_mux_init_signal("mm3_rxdm",
+ OMAP_PIN_INPUT_PULLDOWN);
+ /* FALLTHROUGH */
+ case OMAP_OHCI_PORT_MODE_PHY_4PIN_DPDM:
+ case OMAP_OHCI_PORT_MODE_TLL_4PIN_DPDM:
+ omap_mux_init_signal("mm3_rxrcv",
+ OMAP_PIN_INPUT_PULLDOWN);
+ /* FALLTHROUGH */
+ case OMAP_OHCI_PORT_MODE_PHY_3PIN_DATSE0:
+ case OMAP_OHCI_PORT_MODE_TLL_3PIN_DATSE0:
+ omap_mux_init_signal("mm3_txen_n", OMAP_PIN_OUTPUT);
+ /* FALLTHROUGH */
+ case OMAP_OHCI_PORT_MODE_TLL_2PIN_DATSE0:
+ case OMAP_OHCI_PORT_MODE_TLL_2PIN_DPDM:
+ omap_mux_init_signal("mm3_txse0",
+ OMAP_PIN_INPUT_PULLDOWN);
+ omap_mux_init_signal("mm3_txdat",
+ OMAP_PIN_INPUT_PULLDOWN);
+ break;
+ case OMAP_OHCI_PORT_MODE_UNUSED:
+ /* FALLTHROUGH */
+ default:
+ break;
+ }
+}
+
+void __init usb_ohci_init(const struct ohci_hcd_omap_platform_data *pdata)
+{
+ platform_device_add_data(&ohci_device, pdata, sizeof(*pdata));
+
+ /* Setup Pin IO MUX for OHCI */
+ if (cpu_is_omap34xx())
+ setup_ohci_io_mux(pdata->port_mode);
+
+ if (platform_device_register(&ohci_device) < 0) {
+ pr_err("Unable to register FS-USB (OHCI) device\n");
+ return;
+ }
+}
+
+#else
+
+void __init usb_ohci_init(const struct ohci_hcd_omap_platform_data *pdata)
+{
+}
+
+#endif /* CONFIG_USB_OHCI_HCD */