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-rw-r--r--arch/arm/mach-omap2/usb-ehci.c238
1 files changed, 238 insertions, 0 deletions
diff --git a/arch/arm/mach-omap2/usb-ehci.c b/arch/arm/mach-omap2/usb-ehci.c
new file mode 100644
index 000000000000..f1df873d59db
--- /dev/null
+++ b/arch/arm/mach-omap2/usb-ehci.c
@@ -0,0 +1,238 @@
+/*
+ * linux/arch/arm/mach-omap2/usb-ehci.c
+ *
+ * This file will contain the board specific details for the
+ * Synopsys EHCI host controller on OMAP3430
+ *
+ * Copyright (C) 2007 Texas Instruments
+ * Author: Vikram Pandita <vikram.pandita@ti.com>
+ *
+ * Generalization by:
+ * Felipe Balbi <felipe.balbi@nokia.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/types.h>
+#include <linux/errno.h>
+#include <linux/delay.h>
+#include <linux/platform_device.h>
+#include <linux/clk.h>
+#include <asm/io.h>
+#include <plat/mux.h>
+
+#include <mach/hardware.h>
+#include <mach/irqs.h>
+#include <plat/usb.h>
+
+#include "mux.h"
+
+#if defined(CONFIG_USB_EHCI_HCD) || defined(CONFIG_USB_EHCI_HCD_MODULE)
+
+static struct resource ehci_resources[] = {
+ {
+ .start = OMAP34XX_EHCI_BASE,
+ .end = OMAP34XX_EHCI_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_EHCI_IRQ,
+ .flags = IORESOURCE_IRQ,
+ }
+};
+
+static u64 ehci_dmamask = ~(u32)0;
+static struct platform_device ehci_device = {
+ .name = "ehci-omap",
+ .id = 0,
+ .dev = {
+ .dma_mask = &ehci_dmamask,
+ .coherent_dma_mask = 0xffffffff,
+ .platform_data = NULL,
+ },
+ .num_resources = ARRAY_SIZE(ehci_resources),
+ .resource = ehci_resources,
+};
+
+/* MUX settings for EHCI pins */
+/*
+ * setup_ehci_io_mux - initialize IO pad mux for USBHOST
+ */
+static void setup_ehci_io_mux(enum ehci_hcd_omap_mode *port_mode)
+{
+ switch (port_mode[0]) {
+ case EHCI_HCD_OMAP_MODE_PHY:
+ omap_mux_init_signal("hsusb1_stp", OMAP_PIN_OUTPUT);
+ omap_mux_init_signal("hsusb1_clk", OMAP_PIN_OUTPUT);
+ omap_mux_init_signal("hsusb1_dir", OMAP_PIN_INPUT_PULLDOWN);
+ omap_mux_init_signal("hsusb1_nxt", OMAP_PIN_INPUT_PULLDOWN);
+ omap_mux_init_signal("hsusb1_data0", OMAP_PIN_INPUT_PULLDOWN);
+ omap_mux_init_signal("hsusb1_data1", OMAP_PIN_INPUT_PULLDOWN);
+ omap_mux_init_signal("hsusb1_data2", OMAP_PIN_INPUT_PULLDOWN);
+ omap_mux_init_signal("hsusb1_data3", OMAP_PIN_INPUT_PULLDOWN);
+ omap_mux_init_signal("hsusb1_data4", OMAP_PIN_INPUT_PULLDOWN);
+ omap_mux_init_signal("hsusb1_data5", OMAP_PIN_INPUT_PULLDOWN);
+ omap_mux_init_signal("hsusb1_data6", OMAP_PIN_INPUT_PULLDOWN);
+ omap_mux_init_signal("hsusb1_data7", OMAP_PIN_INPUT_PULLDOWN);
+ break;
+ case EHCI_HCD_OMAP_MODE_TLL:
+ omap_mux_init_signal("hsusb1_tll_stp",
+ OMAP_PIN_INPUT_PULLUP);
+ omap_mux_init_signal("hsusb1_tll_clk",
+ OMAP_PIN_INPUT_PULLDOWN);
+ omap_mux_init_signal("hsusb1_tll_dir",
+ OMAP_PIN_INPUT_PULLDOWN);
+ omap_mux_init_signal("hsusb1_tll_nxt",
+ OMAP_PIN_INPUT_PULLDOWN);
+ omap_mux_init_signal("hsusb1_tll_data0",
+ OMAP_PIN_INPUT_PULLDOWN);
+ omap_mux_init_signal("hsusb1_tll_data1",
+ OMAP_PIN_INPUT_PULLDOWN);
+ omap_mux_init_signal("hsusb1_tll_data2",
+ OMAP_PIN_INPUT_PULLDOWN);
+ omap_mux_init_signal("hsusb1_tll_data3",
+ OMAP_PIN_INPUT_PULLDOWN);
+ omap_mux_init_signal("hsusb1_tll_data4",
+ OMAP_PIN_INPUT_PULLDOWN);
+ omap_mux_init_signal("hsusb1_tll_data5",
+ OMAP_PIN_INPUT_PULLDOWN);
+ omap_mux_init_signal("hsusb1_tll_data6",
+ OMAP_PIN_INPUT_PULLDOWN);
+ omap_mux_init_signal("hsusb1_tll_data7",
+ OMAP_PIN_INPUT_PULLDOWN);
+ break;
+ case EHCI_HCD_OMAP_MODE_UNKNOWN:
+ /* FALLTHROUGH */
+ default:
+ break;
+ }
+
+ switch (port_mode[1]) {
+ case EHCI_HCD_OMAP_MODE_PHY:
+ omap_mux_init_signal("hsusb2_stp", OMAP_PIN_OUTPUT);
+ omap_mux_init_signal("hsusb2_clk", OMAP_PIN_OUTPUT);
+ omap_mux_init_signal("hsusb2_dir", OMAP_PIN_INPUT_PULLDOWN);
+ omap_mux_init_signal("hsusb2_nxt", OMAP_PIN_INPUT_PULLDOWN);
+ omap_mux_init_signal("hsusb2_data0",
+ OMAP_PIN_INPUT_PULLDOWN);
+ omap_mux_init_signal("hsusb2_data1",
+ OMAP_PIN_INPUT_PULLDOWN);
+ omap_mux_init_signal("hsusb2_data2",
+ OMAP_PIN_INPUT_PULLDOWN);
+ omap_mux_init_signal("hsusb2_data3",
+ OMAP_PIN_INPUT_PULLDOWN);
+ omap_mux_init_signal("hsusb2_data4",
+ OMAP_PIN_INPUT_PULLDOWN);
+ omap_mux_init_signal("hsusb2_data5",
+ OMAP_PIN_INPUT_PULLDOWN);
+ omap_mux_init_signal("hsusb2_data6",
+ OMAP_PIN_INPUT_PULLDOWN);
+ omap_mux_init_signal("hsusb2_data7",
+ OMAP_PIN_INPUT_PULLDOWN);
+ break;
+ case EHCI_HCD_OMAP_MODE_TLL:
+ omap_mux_init_signal("hsusb2_tll_stp",
+ OMAP_PIN_INPUT_PULLUP);
+ omap_mux_init_signal("hsusb2_tll_clk",
+ OMAP_PIN_INPUT_PULLDOWN);
+ omap_mux_init_signal("hsusb2_tll_dir",
+ OMAP_PIN_INPUT_PULLDOWN);
+ omap_mux_init_signal("hsusb2_tll_nxt",
+ OMAP_PIN_INPUT_PULLDOWN);
+ omap_mux_init_signal("hsusb2_tll_data0",
+ OMAP_PIN_INPUT_PULLDOWN);
+ omap_mux_init_signal("hsusb2_tll_data1",
+ OMAP_PIN_INPUT_PULLDOWN);
+ omap_mux_init_signal("hsusb2_tll_data2",
+ OMAP_PIN_INPUT_PULLDOWN);
+ omap_mux_init_signal("hsusb2_tll_data3",
+ OMAP_PIN_INPUT_PULLDOWN);
+ omap_mux_init_signal("hsusb2_tll_data4",
+ OMAP_PIN_INPUT_PULLDOWN);
+ omap_mux_init_signal("hsusb2_tll_data5",
+ OMAP_PIN_INPUT_PULLDOWN);
+ omap_mux_init_signal("hsusb2_tll_data6",
+ OMAP_PIN_INPUT_PULLDOWN);
+ omap_mux_init_signal("hsusb2_tll_data7",
+ OMAP_PIN_INPUT_PULLDOWN);
+ break;
+ case EHCI_HCD_OMAP_MODE_UNKNOWN:
+ /* FALLTHROUGH */
+ default:
+ break;
+ }
+
+ switch (port_mode[2]) {
+ case EHCI_HCD_OMAP_MODE_PHY:
+ printk(KERN_WARNING "Port3 can't be used in PHY mode\n");
+ break;
+ case EHCI_HCD_OMAP_MODE_TLL:
+ omap_mux_init_signal("hsusb3_tll_stp",
+ OMAP_PIN_INPUT_PULLUP);
+ omap_mux_init_signal("hsusb3_tll_clk",
+ OMAP_PIN_INPUT_PULLDOWN);
+ omap_mux_init_signal("hsusb3_tll_dir",
+ OMAP_PIN_INPUT_PULLDOWN);
+ omap_mux_init_signal("hsusb3_tll_nxt",
+ OMAP_PIN_INPUT_PULLDOWN);
+ omap_mux_init_signal("hsusb3_tll_data0",
+ OMAP_PIN_INPUT_PULLDOWN);
+ omap_mux_init_signal("hsusb3_tll_data1",
+ OMAP_PIN_INPUT_PULLDOWN);
+ omap_mux_init_signal("hsusb3_tll_data2",
+ OMAP_PIN_INPUT_PULLDOWN);
+ omap_mux_init_signal("hsusb3_tll_data3",
+ OMAP_PIN_INPUT_PULLDOWN);
+ omap_mux_init_signal("hsusb3_tll_data4",
+ OMAP_PIN_INPUT_PULLDOWN);
+ omap_mux_init_signal("hsusb3_tll_data5",
+ OMAP_PIN_INPUT_PULLDOWN);
+ omap_mux_init_signal("hsusb3_tll_data6",
+ OMAP_PIN_INPUT_PULLDOWN);
+ omap_mux_init_signal("hsusb3_tll_data7",
+ OMAP_PIN_INPUT_PULLDOWN);
+ break;
+ case EHCI_HCD_OMAP_MODE_UNKNOWN:
+ /* FALLTHROUGH */
+ default:
+ break;
+ }
+
+ return;
+}
+
+void __init usb_ehci_init(struct ehci_hcd_omap_platform_data *pdata)
+{
+ platform_device_add_data(&ehci_device, pdata, sizeof(*pdata));
+
+ /* Setup Pin IO MUX for EHCI */
+ if (cpu_is_omap34xx())
+ setup_ehci_io_mux(pdata->port_mode);
+
+ if (platform_device_register(&ehci_device) < 0) {
+ printk(KERN_ERR "Unable to register HS-USB (EHCI) device\n");
+ return;
+ }
+}
+
+#else
+
+void __init usb_ehci_init(struct ehci_hcd_omap_platform_data *pdata)
+
+{
+}
+
+#endif /* CONFIG_USB_EHCI_HCD */
+
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