+/*
+ * Atheros AR71xx USB host device support
+ *
+ * Copyright (C) 2008-2009 Gabor Juhos <juhosg@openwrt.org>
+ * Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org>
+ *
+ * Parts of this file are based on Atheros' 2.6.15 BSP
+ *
+ * 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/kernel.h>
+#include <linux/init.h>
+#include <linux/delay.h>
+#include <linux/dma-mapping.h>
+#include <linux/platform_device.h>
+
+#include <asm/mach-ar71xx/ar71xx.h>
+#include <asm/mach-ar71xx/platform.h>
+
+#include "dev-usb.h"
+
+/*
+ * OHCI (USB full speed host controller)
+ */
+static struct resource ar71xx_ohci_resources[] = {
+ [0] = {
+ .start = AR71XX_OHCI_BASE,
+ .end = AR71XX_OHCI_BASE + AR71XX_OHCI_SIZE - 1,
+ .flags = IORESOURCE_MEM,
+ },
+ [1] = {
+ .start = AR71XX_MISC_IRQ_OHCI,
+ .end = AR71XX_MISC_IRQ_OHCI,
+ .flags = IORESOURCE_IRQ,
+ },
+};
+
+static struct resource ar7240_ohci_resources[] = {
+ [0] = {
+ .start = AR7240_OHCI_BASE,
+ .end = AR7240_OHCI_BASE + AR7240_OHCI_SIZE - 1,
+ .flags = IORESOURCE_MEM,
+ },
+ [1] = {
+ .start = AR71XX_CPU_IRQ_USB,
+ .end = AR71XX_CPU_IRQ_USB,
+ .flags = IORESOURCE_IRQ,
+ },
+};
+
+static u64 ar71xx_ohci_dmamask = DMA_BIT_MASK(32);
+static struct platform_device ar71xx_ohci_device = {
+ .name = "ar71xx-ohci",
+ .id = -1,
+ .resource = ar71xx_ohci_resources,
+ .num_resources = ARRAY_SIZE(ar71xx_ohci_resources),
+ .dev = {
+ .dma_mask = &ar71xx_ohci_dmamask,
+ .coherent_dma_mask = DMA_BIT_MASK(32),
+ },
+};
+
+/*
+ * EHCI (USB full speed host controller)
+ */
+static struct resource ar71xx_ehci_resources[] = {
+ [0] = {
+ .start = AR71XX_EHCI_BASE,
+ .end = AR71XX_EHCI_BASE + AR71XX_EHCI_SIZE - 1,
+ .flags = IORESOURCE_MEM,
+ },
+ [1] = {
+ .start = AR71XX_CPU_IRQ_USB,
+ .end = AR71XX_CPU_IRQ_USB,
+ .flags = IORESOURCE_IRQ,
+ },
+};
+
+static u64 ar71xx_ehci_dmamask = DMA_BIT_MASK(32);
+static struct ar71xx_ehci_platform_data ar71xx_ehci_data;
+
+static struct platform_device ar71xx_ehci_device = {
+ .name = "ar71xx-ehci",
+ .id = -1,
+ .resource = ar71xx_ehci_resources,
+ .num_resources = ARRAY_SIZE(ar71xx_ehci_resources),
+ .dev = {
+ .dma_mask = &ar71xx_ehci_dmamask,
+ .coherent_dma_mask = DMA_BIT_MASK(32),
+ .platform_data = &ar71xx_ehci_data,
+ },
+};
+
+#define AR71XX_USB_RESET_MASK \
+ (RESET_MODULE_USB_HOST | RESET_MODULE_USB_PHY \
+ | RESET_MODULE_USB_OHCI_DLL)
+
+#define AR7240_USB_RESET_MASK \
+ (RESET_MODULE_USB_HOST | RESET_MODULE_USB_OHCI_DLL_7240)
+
+static void __init ar71xx_usb_setup(void)
+{
+ ar71xx_device_stop(AR71XX_USB_RESET_MASK);
+ mdelay(1000);
+ ar71xx_device_start(AR71XX_USB_RESET_MASK);
+
+ /* Turning on the Buff and Desc swap bits */
+ ar71xx_usb_ctrl_wr(USB_CTRL_REG_CONFIG, 0xf0000);
+
+ /* WAR for HW bug. Here it adjusts the duration between two SOFS */
+ ar71xx_usb_ctrl_wr(USB_CTRL_REG_FLADJ, 0x20c00);
+
+ mdelay(900);
+
+ platform_device_register(&ar71xx_ohci_device);
+ platform_device_register(&ar71xx_ehci_device);
+}
+
+static void __init ar7240_usb_setup(void)
+{
+ ar71xx_device_stop(AR7240_USB_RESET_MASK);
+ mdelay(1000);
+ ar71xx_device_start(AR7240_USB_RESET_MASK);
+
+ /* WAR for HW bug. Here it adjusts the duration between two SOFS */
+ ar71xx_usb_ctrl_wr(USB_CTRL_REG_FLADJ, 0x3);
+
+ ar71xx_ohci_device.resource = ar7240_ohci_resources;
+ ar71xx_ohci_device.num_resources = ARRAY_SIZE(ar7240_ohci_resources);
+
+ platform_device_register(&ar71xx_ohci_device);
+}
+
+static void __init ar91xx_usb_setup(void)
+{
+ ar71xx_device_stop(RESET_MODULE_USBSUS_OVERRIDE);
+ mdelay(10);
+
+ ar71xx_device_start(RESET_MODULE_USB_HOST);
+ mdelay(10);
+
+ ar71xx_device_start(RESET_MODULE_USB_PHY);
+ mdelay(10);
+
+ ar71xx_ehci_data.is_ar91xx = 1;
+ platform_device_register(&ar71xx_ehci_device);
+}
+
+void __init ar71xx_add_device_usb(void)
+{
+ switch (ar71xx_soc) {
+ case AR71XX_SOC_AR7240:
+ ar7240_usb_setup();
+ break;
+
+ case AR71XX_SOC_AR7130:
+ case AR71XX_SOC_AR7141:
+ case AR71XX_SOC_AR7161:
+ ar71xx_usb_setup();
+ break;
+
+ case AR71XX_SOC_AR9130:
+ case AR71XX_SOC_AR9132:
+ ar91xx_usb_setup();
+ break;
+
+ default:
+ BUG();
+ }
+}
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