ar71xx: move USB host device support into a separate file
SVN-Revision: 18940v19.07.3_mercusys_ac12_duma
Gabor Juhos
15 years ago
parent
a93033d354
commit
6ee4aa34ed
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/*
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* Atheros AR71xx USB host device support
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*
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* Copyright (C) 2008-2009 Gabor Juhos <juhosg@openwrt.org>
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* Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org>
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*
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* Parts of this file are based on Atheros' 2.6.15 BSP
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 as published
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* by the Free Software Foundation.
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*/
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#include <linux/kernel.h>
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#include <linux/init.h>
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#include <linux/delay.h>
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#include <linux/dma-mapping.h>
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#include <linux/platform_device.h>
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#include <asm/mach-ar71xx/ar71xx.h>
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#include <asm/mach-ar71xx/platform.h>
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#include "dev-usb.h"
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/*
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* OHCI (USB full speed host controller)
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*/
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static struct resource ar71xx_ohci_resources[] = {
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[0] = {
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.start = AR71XX_OHCI_BASE,
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.end = AR71XX_OHCI_BASE + AR71XX_OHCI_SIZE - 1,
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.flags = IORESOURCE_MEM,
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},
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[1] = {
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.start = AR71XX_MISC_IRQ_OHCI,
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.end = AR71XX_MISC_IRQ_OHCI,
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.flags = IORESOURCE_IRQ,
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},
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};
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static struct resource ar7240_ohci_resources[] = {
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[0] = {
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.start = AR7240_OHCI_BASE,
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.end = AR7240_OHCI_BASE + AR7240_OHCI_SIZE - 1,
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.flags = IORESOURCE_MEM,
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},
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[1] = {
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.start = AR71XX_CPU_IRQ_USB,
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.end = AR71XX_CPU_IRQ_USB,
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.flags = IORESOURCE_IRQ,
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},
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};
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static u64 ar71xx_ohci_dmamask = DMA_BIT_MASK(32);
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static struct platform_device ar71xx_ohci_device = {
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.name = "ar71xx-ohci",
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.id = -1,
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.resource = ar71xx_ohci_resources,
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.num_resources = ARRAY_SIZE(ar71xx_ohci_resources),
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.dev = {
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.dma_mask = &ar71xx_ohci_dmamask,
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.coherent_dma_mask = DMA_BIT_MASK(32),
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},
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};
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/*
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* EHCI (USB full speed host controller)
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*/
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static struct resource ar71xx_ehci_resources[] = {
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[0] = {
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.start = AR71XX_EHCI_BASE,
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.end = AR71XX_EHCI_BASE + AR71XX_EHCI_SIZE - 1,
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.flags = IORESOURCE_MEM,
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},
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[1] = {
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.start = AR71XX_CPU_IRQ_USB,
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.end = AR71XX_CPU_IRQ_USB,
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.flags = IORESOURCE_IRQ,
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},
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};
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static u64 ar71xx_ehci_dmamask = DMA_BIT_MASK(32);
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static struct ar71xx_ehci_platform_data ar71xx_ehci_data;
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static struct platform_device ar71xx_ehci_device = {
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.name = "ar71xx-ehci",
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.id = -1,
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.resource = ar71xx_ehci_resources,
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.num_resources = ARRAY_SIZE(ar71xx_ehci_resources),
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.dev = {
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.dma_mask = &ar71xx_ehci_dmamask,
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.coherent_dma_mask = DMA_BIT_MASK(32),
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.platform_data = &ar71xx_ehci_data,
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},
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};
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#define AR71XX_USB_RESET_MASK \
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(RESET_MODULE_USB_HOST | RESET_MODULE_USB_PHY \
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| RESET_MODULE_USB_OHCI_DLL)
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#define AR7240_USB_RESET_MASK \
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(RESET_MODULE_USB_HOST | RESET_MODULE_USB_OHCI_DLL_7240)
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static void __init ar71xx_usb_setup(void)
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{
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ar71xx_device_stop(AR71XX_USB_RESET_MASK);
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mdelay(1000);
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ar71xx_device_start(AR71XX_USB_RESET_MASK);
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/* Turning on the Buff and Desc swap bits */
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ar71xx_usb_ctrl_wr(USB_CTRL_REG_CONFIG, 0xf0000);
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/* WAR for HW bug. Here it adjusts the duration between two SOFS */
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ar71xx_usb_ctrl_wr(USB_CTRL_REG_FLADJ, 0x20c00);
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mdelay(900);
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platform_device_register(&ar71xx_ohci_device);
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platform_device_register(&ar71xx_ehci_device);
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}
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static void __init ar7240_usb_setup(void)
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{
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ar71xx_device_stop(AR7240_USB_RESET_MASK);
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mdelay(1000);
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ar71xx_device_start(AR7240_USB_RESET_MASK);
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/* WAR for HW bug. Here it adjusts the duration between two SOFS */
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ar71xx_usb_ctrl_wr(USB_CTRL_REG_FLADJ, 0x3);
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ar71xx_ohci_device.resource = ar7240_ohci_resources;
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ar71xx_ohci_device.num_resources = ARRAY_SIZE(ar7240_ohci_resources);
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platform_device_register(&ar71xx_ohci_device);
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}
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static void __init ar91xx_usb_setup(void)
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{
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ar71xx_device_stop(RESET_MODULE_USBSUS_OVERRIDE);
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mdelay(10);
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ar71xx_device_start(RESET_MODULE_USB_HOST);
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mdelay(10);
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ar71xx_device_start(RESET_MODULE_USB_PHY);
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mdelay(10);
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ar71xx_ehci_data.is_ar91xx = 1;
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platform_device_register(&ar71xx_ehci_device);
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}
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void __init ar71xx_add_device_usb(void)
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{
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switch (ar71xx_soc) {
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case AR71XX_SOC_AR7240:
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ar7240_usb_setup();
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break;
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case AR71XX_SOC_AR7130:
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case AR71XX_SOC_AR7141:
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case AR71XX_SOC_AR7161:
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ar71xx_usb_setup();
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break;
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case AR71XX_SOC_AR9130:
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case AR71XX_SOC_AR9132:
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ar91xx_usb_setup();
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break;
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default:
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BUG();
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}
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}
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@ -0,0 +1,17 @@
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/*
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* Atheros AR71xx USB host device support
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*
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* Copyright (C) 2008-2009 Gabor Juhos <juhosg@openwrt.org>
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* Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org>
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 as published
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* by the Free Software Foundation.
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*/
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#ifndef _AR71XX_DEV_USB_H
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#define _AR71XX_DEV_USB_H
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void ar71xx_add_device_usb(void) __init;
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#endif /* _AR71XX_DEV_USB_H */
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