2011-06-05 15:38:46 -06:00
|
|
|
/*
|
|
|
|
* 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>
|
2012-03-12 18:04:53 -06:00
|
|
|
#include <linux/usb/ehci_pdriver.h>
|
|
|
|
#include <linux/usb/ohci_pdriver.h>
|
2011-06-05 15:38:46 -06:00
|
|
|
|
|
|
|
#include <asm/mach-ath79/ath79.h>
|
|
|
|
#include <asm/mach-ath79/ar71xx_regs.h>
|
|
|
|
#include "common.h"
|
|
|
|
#include "dev-usb.h"
|
|
|
|
|
2012-08-04 09:03:55 -06:00
|
|
|
static struct resource ath79_ohci_resources[2];
|
2011-06-05 15:38:46 -06:00
|
|
|
|
|
|
|
static u64 ath79_ohci_dmamask = DMA_BIT_MASK(32);
|
2012-03-12 18:04:53 -06:00
|
|
|
|
|
|
|
static struct usb_ohci_pdata ath79_ohci_pdata = {
|
|
|
|
};
|
|
|
|
|
2011-06-05 15:38:46 -06:00
|
|
|
static struct platform_device ath79_ohci_device = {
|
2012-03-12 18:04:53 -06:00
|
|
|
.name = "ohci-platform",
|
2011-06-05 15:38:46 -06:00
|
|
|
.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),
|
2012-03-12 18:04:53 -06:00
|
|
|
.platform_data = &ath79_ohci_pdata,
|
2011-06-05 15:38:46 -06:00
|
|
|
},
|
|
|
|
};
|
|
|
|
|
2012-08-04 09:03:55 -06:00
|
|
|
static struct resource ath79_ehci_resources[2];
|
2011-06-05 15:38:46 -06:00
|
|
|
|
|
|
|
static u64 ath79_ehci_dmamask = DMA_BIT_MASK(32);
|
2012-03-12 18:04:53 -06:00
|
|
|
|
|
|
|
static struct usb_ehci_pdata ath79_ehci_pdata_v1 = {
|
|
|
|
.has_synopsys_hc_bug = 1,
|
|
|
|
};
|
|
|
|
|
|
|
|
static struct usb_ehci_pdata ath79_ehci_pdata_v2 = {
|
|
|
|
.caps_offset = 0x100,
|
|
|
|
.has_tt = 1,
|
|
|
|
};
|
|
|
|
|
2011-06-05 15:38:46 -06:00
|
|
|
static struct platform_device ath79_ehci_device = {
|
2012-03-12 18:04:53 -06:00
|
|
|
.name = "ehci-platform",
|
2011-06-05 15:38:46 -06:00
|
|
|
.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),
|
|
|
|
},
|
|
|
|
};
|
|
|
|
|
2012-08-04 09:03:55 -06:00
|
|
|
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;
|
|
|
|
}
|
|
|
|
|
2011-06-05 15:38:46 -06:00
|
|
|
#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);
|
|
|
|
|
2012-08-04 09:03:55 -06:00
|
|
|
ath79_usb_init_resource(ath79_ohci_resources, AR71XX_OHCI_BASE,
|
2013-02-07 12:32:24 -07:00
|
|
|
AR71XX_OHCI_SIZE, ATH79_MISC_IRQ(6));
|
2011-06-05 15:38:46 -06:00
|
|
|
platform_device_register(&ath79_ohci_device);
|
|
|
|
|
2012-08-04 09:03:55 -06:00
|
|
|
ath79_usb_init_resource(ath79_ehci_resources, AR71XX_EHCI_BASE,
|
2013-02-07 12:32:23 -07:00
|
|
|
AR71XX_EHCI_SIZE, ATH79_CPU_IRQ(3));
|
2012-03-12 18:04:53 -06:00
|
|
|
ath79_ehci_device.dev.platform_data = &ath79_ehci_pdata_v1;
|
2011-06-05 15:38:46 -06:00
|
|
|
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);
|
|
|
|
|
2012-08-04 09:03:55 -06:00
|
|
|
ath79_usb_init_resource(ath79_ohci_resources, AR7240_OHCI_BASE,
|
2013-02-07 12:32:23 -07:00
|
|
|
AR7240_OHCI_SIZE, ATH79_CPU_IRQ(3));
|
2011-06-05 15:38:46 -06:00
|
|
|
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);
|
|
|
|
|
2012-08-04 09:03:55 -06:00
|
|
|
ath79_usb_init_resource(ath79_ehci_resources, AR724X_EHCI_BASE,
|
2013-02-07 12:32:23 -07:00
|
|
|
AR724X_EHCI_SIZE, ATH79_CPU_IRQ(3));
|
2012-03-12 18:04:53 -06:00
|
|
|
ath79_ehci_device.dev.platform_data = &ath79_ehci_pdata_v2;
|
2011-06-05 15:38:46 -06:00
|
|
|
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);
|
|
|
|
|
2012-08-04 09:03:55 -06:00
|
|
|
ath79_usb_init_resource(ath79_ehci_resources, AR913X_EHCI_BASE,
|
2013-02-07 12:32:23 -07:00
|
|
|
AR913X_EHCI_SIZE, ATH79_CPU_IRQ(3));
|
2012-03-12 18:04:53 -06:00
|
|
|
ath79_ehci_device.dev.platform_data = &ath79_ehci_pdata_v2;
|
2011-06-05 15:38:46 -06:00
|
|
|
platform_device_register(&ath79_ehci_device);
|
|
|
|
}
|
|
|
|
|
2011-06-20 13:26:10 -06:00
|
|
|
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);
|
|
|
|
|
2012-08-04 09:03:55 -06:00
|
|
|
ath79_usb_init_resource(ath79_ehci_resources, AR933X_EHCI_BASE,
|
2013-02-07 12:32:23 -07:00
|
|
|
AR933X_EHCI_SIZE, ATH79_CPU_IRQ(3));
|
2012-03-12 18:04:53 -06:00
|
|
|
ath79_ehci_device.dev.platform_data = &ath79_ehci_pdata_v2;
|
2011-06-20 13:26:10 -06:00
|
|
|
platform_device_register(&ath79_ehci_device);
|
|
|
|
}
|
|
|
|
|
2012-08-04 09:03:56 -06:00
|
|
|
static void __init ar934x_usb_setup(void)
|
|
|
|
{
|
|
|
|
u32 bootstrap;
|
|
|
|
|
|
|
|
bootstrap = ath79_reset_rr(AR934X_RESET_REG_BOOTSTRAP);
|
|
|
|
if (bootstrap & AR934X_BOOTSTRAP_USB_MODE_DEVICE)
|
|
|
|
return;
|
|
|
|
|
|
|
|
ath79_device_reset_set(AR934X_RESET_USBSUS_OVERRIDE);
|
|
|
|
udelay(1000);
|
|
|
|
|
|
|
|
ath79_device_reset_clear(AR934X_RESET_USB_PHY);
|
|
|
|
udelay(1000);
|
|
|
|
|
|
|
|
ath79_device_reset_clear(AR934X_RESET_USB_PHY_ANALOG);
|
|
|
|
udelay(1000);
|
|
|
|
|
|
|
|
ath79_device_reset_clear(AR934X_RESET_USB_HOST);
|
|
|
|
udelay(1000);
|
|
|
|
|
|
|
|
ath79_usb_init_resource(ath79_ehci_resources, AR934X_EHCI_BASE,
|
2013-02-07 12:32:23 -07:00
|
|
|
AR934X_EHCI_SIZE, ATH79_CPU_IRQ(3));
|
2012-08-04 09:03:56 -06:00
|
|
|
ath79_ehci_device.dev.platform_data = &ath79_ehci_pdata_v2;
|
|
|
|
platform_device_register(&ath79_ehci_device);
|
|
|
|
}
|
|
|
|
|
2011-06-05 15:38:46 -06:00
|
|
|
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();
|
2011-06-20 13:26:10 -06:00
|
|
|
else if (soc_is_ar933x())
|
|
|
|
ar933x_usb_setup();
|
2012-08-04 09:03:56 -06:00
|
|
|
else if (soc_is_ar934x())
|
|
|
|
ar934x_usb_setup();
|
2011-06-05 15:38:46 -06:00
|
|
|
else
|
|
|
|
BUG();
|
|
|
|
}
|