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 (file)
--- a/arch/arm/mach-omap2/usb-ehci.c
+++ b/arch/arm/mach-omap2/usb-ehci.c
@@ -236,3 +236,158 @@ void __init usb_ehci_init(const struct ehci_hcd_omap_platform_data *pdata)
 
 #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 */

diff --git a/arch/arm/plat-omap/include/plat/usb.h b/arch/arm/plat-omap/include/plat/usb.h
index 60c734f..98eef53 100644 (file)
--- a/arch/arm/plat-omap/include/plat/usb.h
+++ b/arch/arm/plat-omap/include/plat/usb.h
@@ -13,6 +13,20 @@ enum ehci_hcd_omap_mode {
        EHCI_HCD_OMAP_MODE_TLL,
 };
 
+enum ohci_omap3_port_mode {
+       OMAP_OHCI_PORT_MODE_UNUSED,
+       OMAP_OHCI_PORT_MODE_PHY_6PIN_DATSE0,
+       OMAP_OHCI_PORT_MODE_PHY_6PIN_DPDM,
+       OMAP_OHCI_PORT_MODE_PHY_3PIN_DATSE0,
+       OMAP_OHCI_PORT_MODE_PHY_4PIN_DPDM,
+       OMAP_OHCI_PORT_MODE_TLL_6PIN_DATSE0,
+       OMAP_OHCI_PORT_MODE_TLL_6PIN_DPDM,
+       OMAP_OHCI_PORT_MODE_TLL_3PIN_DATSE0,
+       OMAP_OHCI_PORT_MODE_TLL_4PIN_DPDM,
+       OMAP_OHCI_PORT_MODE_TLL_2PIN_DATSE0,
+       OMAP_OHCI_PORT_MODE_TLL_2PIN_DPDM,
+};
+
 struct ehci_hcd_omap_platform_data {
        enum ehci_hcd_omap_mode         port_mode[OMAP3_HS_USB_PORTS];
        unsigned                        phy_reset:1;
@@ -21,6 +35,13 @@ struct ehci_hcd_omap_platform_data {
        int     reset_gpio_port[OMAP3_HS_USB_PORTS];
 };
 
+struct ohci_hcd_omap_platform_data {
+       enum ohci_omap3_port_mode       port_mode[OMAP3_HS_USB_PORTS];
+
+       /* Set this to true for ES2.x silicon */
+       unsigned                        es2_compatibility:1;
+};
+
 /*-------------------------------------------------------------------------*/
 
 #define OMAP1_OTG_BASE                 0xfffb0400
@@ -56,6 +77,8 @@ extern void usb_musb_init(struct omap_musb_board_data *board_data);
 
 extern void usb_ehci_init(const struct ehci_hcd_omap_platform_data *pdata);
 
+extern void usb_ohci_init(const struct ohci_hcd_omap_platform_data *pdata);
+
 #endif
 
 void omap_usb_init(struct omap_usb_config *pdata);