omap: Add platform init code for EHCI driver

Add platform init code for EHCI driver.

Various fixes to the original patch by Ajay Kumar Gupta <ajay.gupta@ti.com>
and Anand Gadiyar <gadiyar@ti.com>.

Overo support added by Olof Johansson <olof@lixom.net>
Beagle support added by Koen Kooi <koen@beagleboard.org>
CM-T32 support added by Mike Rapoport <mike@compulab.co.il>

Signed-off-by: Signed-off-by: Olof Johansson <olof@lixom.net>
Acked-by: Steve Sakoman <steve@sakoman.com>
Signed-off-by: Koen Kooi <koen@beagleboard.org>
Signed-off-by: Mike Rapoport <mike@compulab.co.il>
Signed-off-by: Ajay Kumar Gupta <ajay.gupta@ti.com>
Signed-off-by: Anand Gadiyar <gadiyar@ti.com>
Signed-off-by: Felipe Balbi <felipe.balbi@nokia.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

1 files changed, 192 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 00000000000..e448abd5ec5
--- /dev/null
+++ b/arch/arm/mach-omap2/usb-ehci.c
@@ -0,0 +1,192 @@
+/*
+ * 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>
+
+#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_cfg_reg(Y9_3430_USB1HS_PHY_STP);
+		omap_cfg_reg(Y8_3430_USB1HS_PHY_CLK);
+		omap_cfg_reg(AA14_3430_USB1HS_PHY_DIR);
+		omap_cfg_reg(AA11_3430_USB1HS_PHY_NXT);
+		omap_cfg_reg(W13_3430_USB1HS_PHY_DATA0);
+		omap_cfg_reg(W12_3430_USB1HS_PHY_DATA1);
+		omap_cfg_reg(W11_3430_USB1HS_PHY_DATA2);
+		omap_cfg_reg(Y11_3430_USB1HS_PHY_DATA3);
+		omap_cfg_reg(W9_3430_USB1HS_PHY_DATA4);
+		omap_cfg_reg(Y12_3430_USB1HS_PHY_DATA5);
+		omap_cfg_reg(W8_3430_USB1HS_PHY_DATA6);
+		omap_cfg_reg(Y13_3430_USB1HS_PHY_DATA7);
+		break;
+	case EHCI_HCD_OMAP_MODE_TLL:
+		omap_cfg_reg(Y9_3430_USB1HS_TLL_STP);
+		omap_cfg_reg(Y8_3430_USB1HS_TLL_CLK);
+		omap_cfg_reg(AA14_3430_USB1HS_TLL_DIR);
+		omap_cfg_reg(AA11_3430_USB1HS_TLL_NXT);
+		omap_cfg_reg(W13_3430_USB1HS_TLL_DATA0);
+		omap_cfg_reg(W12_3430_USB1HS_TLL_DATA1);
+		omap_cfg_reg(W11_3430_USB1HS_TLL_DATA2);
+		omap_cfg_reg(Y11_3430_USB1HS_TLL_DATA3);
+		omap_cfg_reg(W9_3430_USB1HS_TLL_DATA4);
+		omap_cfg_reg(Y12_3430_USB1HS_TLL_DATA5);
+		omap_cfg_reg(W8_3430_USB1HS_TLL_DATA6);
+		omap_cfg_reg(Y13_3430_USB1HS_TLL_DATA7);
+		break;
+	case EHCI_HCD_OMAP_MODE_UNKNOWN:
+		/* FALLTHROUGH */
+	default:
+		break;
+	}
+
+	switch (port_mode[1]) {
+	case EHCI_HCD_OMAP_MODE_PHY:
+		omap_cfg_reg(AA10_3430_USB2HS_PHY_STP);
+		omap_cfg_reg(AA8_3430_USB2HS_PHY_CLK);
+		omap_cfg_reg(AA9_3430_USB2HS_PHY_DIR);
+		omap_cfg_reg(AB11_3430_USB2HS_PHY_NXT);
+		omap_cfg_reg(AB10_3430_USB2HS_PHY_DATA0);
+		omap_cfg_reg(AB9_3430_USB2HS_PHY_DATA1);
+		omap_cfg_reg(W3_3430_USB2HS_PHY_DATA2);
+		omap_cfg_reg(T4_3430_USB2HS_PHY_DATA3);
+		omap_cfg_reg(T3_3430_USB2HS_PHY_DATA4);
+		omap_cfg_reg(R3_3430_USB2HS_PHY_DATA5);
+		omap_cfg_reg(R4_3430_USB2HS_PHY_DATA6);
+		omap_cfg_reg(T2_3430_USB2HS_PHY_DATA7);
+		break;
+	case EHCI_HCD_OMAP_MODE_TLL:
+		omap_cfg_reg(AA10_3430_USB2HS_TLL_STP);
+		omap_cfg_reg(AA8_3430_USB2HS_TLL_CLK);
+		omap_cfg_reg(AA9_3430_USB2HS_TLL_DIR);
+		omap_cfg_reg(AB11_3430_USB2HS_TLL_NXT);
+		omap_cfg_reg(AB10_3430_USB2HS_TLL_DATA0);
+		omap_cfg_reg(AB9_3430_USB2HS_TLL_DATA1);
+		omap_cfg_reg(W3_3430_USB2HS_TLL_DATA2);
+		omap_cfg_reg(T4_3430_USB2HS_TLL_DATA3);
+		omap_cfg_reg(T3_3430_USB2HS_TLL_DATA4);
+		omap_cfg_reg(R3_3430_USB2HS_TLL_DATA5);
+		omap_cfg_reg(R4_3430_USB2HS_TLL_DATA6);
+		omap_cfg_reg(T2_3430_USB2HS_TLL_DATA7);
+		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_cfg_reg(AB3_3430_USB3HS_TLL_STP);
+		omap_cfg_reg(AA6_3430_USB3HS_TLL_CLK);
+		omap_cfg_reg(AA3_3430_USB3HS_TLL_DIR);
+		omap_cfg_reg(Y3_3430_USB3HS_TLL_NXT);
+		omap_cfg_reg(AA5_3430_USB3HS_TLL_DATA0);
+		omap_cfg_reg(Y4_3430_USB3HS_TLL_DATA1);
+		omap_cfg_reg(Y5_3430_USB3HS_TLL_DATA2);
+		omap_cfg_reg(W5_3430_USB3HS_TLL_DATA3);
+		omap_cfg_reg(AB12_3430_USB3HS_TLL_DATA4);
+		omap_cfg_reg(AB13_3430_USB3HS_TLL_DATA5);
+		omap_cfg_reg(AA13_3430_USB3HS_TLL_DATA6);
+		omap_cfg_reg(AA12_3430_USB3HS_TLL_DATA7);
+		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 */
+