| /* |
| * Atheros AR7XXX/AR9XXX USB Host Controller device |
| * |
| * Copyright (C) 2008-2011 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/irq.h> |
| #include <linux/dma-mapping.h> |
| #include <linux/platform_device.h> |
| #include <linux/usb/ehci_pdriver.h> |
| #include <linux/usb/ohci_pdriver.h> |
| |
| #include <asm/mach-ath79/ath79.h> |
| #include <asm/mach-ath79/ar71xx_regs.h> |
| #include "common.h" |
| #include "dev-usb.h" |
| |
| static struct resource ath79_ohci_resources[2]; |
| |
| static u64 ath79_ohci_dmamask = DMA_BIT_MASK(32); |
| |
| static struct usb_ohci_pdata ath79_ohci_pdata = { |
| }; |
| |
| static struct platform_device ath79_ohci_device = { |
| .name = "ohci-platform", |
| .id = -1, |
| .resource = ath79_ohci_resources, |
| .num_resources = ARRAY_SIZE(ath79_ohci_resources), |
| .dev = { |
| .dma_mask = &ath79_ohci_dmamask, |
| .coherent_dma_mask = DMA_BIT_MASK(32), |
| .platform_data = &ath79_ohci_pdata, |
| }, |
| }; |
| |
| static struct resource ath79_ehci_resources[2]; |
| |
| static u64 ath79_ehci_dmamask = DMA_BIT_MASK(32); |
| |
| static struct usb_ehci_pdata ath79_ehci_pdata_v1 = { |
| .has_synopsys_hc_bug = 1, |
| .port_power_off = 1, |
| }; |
| |
| static struct usb_ehci_pdata ath79_ehci_pdata_v2 = { |
| .caps_offset = 0x100, |
| .has_tt = 1, |
| .port_power_off = 1, |
| }; |
| |
| static struct platform_device ath79_ehci_device = { |
| .name = "ehci-platform", |
| .id = -1, |
| .resource = ath79_ehci_resources, |
| .num_resources = ARRAY_SIZE(ath79_ehci_resources), |
| .dev = { |
| .dma_mask = &ath79_ehci_dmamask, |
| .coherent_dma_mask = DMA_BIT_MASK(32), |
| }, |
| }; |
| |
| static void __init ath79_usb_init_resource(struct resource res[2], |
| unsigned long base, |
| unsigned long size, |
| int irq) |
| { |
| res[0].flags = IORESOURCE_MEM; |
| res[0].start = base; |
| res[0].end = base + size - 1; |
| |
| res[1].flags = IORESOURCE_IRQ; |
| res[1].start = irq; |
| res[1].end = irq; |
| } |
| |
| #define AR71XX_USB_RESET_MASK (AR71XX_RESET_USB_HOST | \ |
| AR71XX_RESET_USB_PHY | \ |
| AR71XX_RESET_USB_OHCI_DLL) |
| |
| static void __init ath79_usb_setup(void) |
| { |
| void __iomem *usb_ctrl_base; |
| |
| ath79_device_reset_set(AR71XX_USB_RESET_MASK); |
| mdelay(1000); |
| ath79_device_reset_clear(AR71XX_USB_RESET_MASK); |
| |
| usb_ctrl_base = ioremap(AR71XX_USB_CTRL_BASE, AR71XX_USB_CTRL_SIZE); |
| |
| /* Turning on the Buff and Desc swap bits */ |
| __raw_writel(0xf0000, usb_ctrl_base + AR71XX_USB_CTRL_REG_CONFIG); |
| |
| /* WAR for HW bug. Here it adjusts the duration between two SOFS */ |
| __raw_writel(0x20c00, usb_ctrl_base + AR71XX_USB_CTRL_REG_FLADJ); |
| |
| iounmap(usb_ctrl_base); |
| |
| mdelay(900); |
| |
| ath79_usb_init_resource(ath79_ohci_resources, AR71XX_OHCI_BASE, |
| AR71XX_OHCI_SIZE, ATH79_MISC_IRQ_OHCI); |
| platform_device_register(&ath79_ohci_device); |
| |
| ath79_usb_init_resource(ath79_ehci_resources, AR71XX_EHCI_BASE, |
| AR71XX_EHCI_SIZE, ATH79_CPU_IRQ_USB); |
| ath79_ehci_device.dev.platform_data = &ath79_ehci_pdata_v1; |
| platform_device_register(&ath79_ehci_device); |
| } |
| |
| static void __init ar7240_usb_setup(void) |
| { |
| void __iomem *usb_ctrl_base; |
| |
| ath79_device_reset_clear(AR7240_RESET_OHCI_DLL); |
| ath79_device_reset_set(AR7240_RESET_USB_HOST); |
| |
| mdelay(1000); |
| |
| ath79_device_reset_set(AR7240_RESET_OHCI_DLL); |
| ath79_device_reset_clear(AR7240_RESET_USB_HOST); |
| |
| usb_ctrl_base = ioremap(AR7240_USB_CTRL_BASE, AR7240_USB_CTRL_SIZE); |
| |
| /* WAR for HW bug. Here it adjusts the duration between two SOFS */ |
| __raw_writel(0x3, usb_ctrl_base + AR71XX_USB_CTRL_REG_FLADJ); |
| |
| iounmap(usb_ctrl_base); |
| |
| ath79_usb_init_resource(ath79_ohci_resources, AR7240_OHCI_BASE, |
| AR7240_OHCI_SIZE, ATH79_CPU_IRQ_USB); |
| platform_device_register(&ath79_ohci_device); |
| } |
| |
| static void __init ar724x_usb_setup(void) |
| { |
| ath79_device_reset_set(AR724X_RESET_USBSUS_OVERRIDE); |
| mdelay(10); |
| |
| ath79_device_reset_clear(AR724X_RESET_USB_HOST); |
| mdelay(10); |
| |
| ath79_device_reset_clear(AR724X_RESET_USB_PHY); |
| mdelay(10); |
| |
| ath79_usb_init_resource(ath79_ehci_resources, AR724X_EHCI_BASE, |
| AR724X_EHCI_SIZE, ATH79_CPU_IRQ_USB); |
| ath79_ehci_device.dev.platform_data = &ath79_ehci_pdata_v2; |
| platform_device_register(&ath79_ehci_device); |
| } |
| |
| static void __init ar913x_usb_setup(void) |
| { |
| ath79_device_reset_set(AR913X_RESET_USBSUS_OVERRIDE); |
| mdelay(10); |
| |
| ath79_device_reset_clear(AR913X_RESET_USB_HOST); |
| mdelay(10); |
| |
| ath79_device_reset_clear(AR913X_RESET_USB_PHY); |
| mdelay(10); |
| |
| ath79_usb_init_resource(ath79_ehci_resources, AR913X_EHCI_BASE, |
| AR913X_EHCI_SIZE, ATH79_CPU_IRQ_USB); |
| ath79_ehci_device.dev.platform_data = &ath79_ehci_pdata_v2; |
| platform_device_register(&ath79_ehci_device); |
| } |
| |
| static void __init ar933x_usb_setup(void) |
| { |
| ath79_device_reset_set(AR933X_RESET_USBSUS_OVERRIDE); |
| mdelay(10); |
| |
| ath79_device_reset_clear(AR933X_RESET_USB_HOST); |
| mdelay(10); |
| |
| ath79_device_reset_clear(AR933X_RESET_USB_PHY); |
| mdelay(10); |
| |
| ath79_usb_init_resource(ath79_ehci_resources, AR933X_EHCI_BASE, |
| AR933X_EHCI_SIZE, ATH79_CPU_IRQ_USB); |
| ath79_ehci_device.dev.platform_data = &ath79_ehci_pdata_v2; |
| platform_device_register(&ath79_ehci_device); |
| } |
| |
| void __init ath79_register_usb(void) |
| { |
| if (soc_is_ar71xx()) |
| ath79_usb_setup(); |
| else if (soc_is_ar7240()) |
| ar7240_usb_setup(); |
| else if (soc_is_ar7241() || soc_is_ar7242()) |
| ar724x_usb_setup(); |
| else if (soc_is_ar913x()) |
| ar913x_usb_setup(); |
| else if (soc_is_ar933x()) |
| ar933x_usb_setup(); |
| else |
| BUG(); |
| } |