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add support for on-board EHCI controller

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Signed-off-by: Florian Fainelli <florian@openwrt.org>

SVN-Revision: 34561
This commit is contained in:
Florian Fainelli 2012-12-06 22:40:49 +00:00
parent 5679d5d1e1
commit a5aed4ec3a
2 changed files with 46 additions and 0 deletions
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45
target/linux/adm8668/files/arch/mips/adm8668/platform.c
View file

@ -13,6 +13,7 @@
#include <linux/kernel.h>
#include <linux/platform_device.h>
#include <linux/platform_data/tulip.h>
#include <linux/usb/ehci_pdriver.h>
#include <linux/mtd/physmap.h>
#include <linux/mtd/partitions.h>
#include <linux/pci.h>
@ -130,10 +131,38 @@ static struct platform_device adm8668_nor_device = {
.dev.platform_data = &nor_flash_data,
};
static struct resource usb_resources[] = {
{
.start = ADM8668_USB_BASE,
.end = ADM8668_USB_BASE + 0x1FFFFF,
.flags = IORESOURCE_MEM,
},
{
.start = INT_LVL_USB,
.end = INT_LVL_USB,
.flags = IORESOURCE_IRQ,
},
};
static struct usb_ehci_pdata usb_pdata = {
.caps_offset = 0x100,
.has_tt = 1,
.port_power_off = 1,
};
static struct platform_device adm8668_usb_device = {
.name = "ehci-platform",
.id = -1,
.resource = usb_resources,
.num_resources = ARRAY_SIZE(usb_resources),
.dev.platform_data = &usb_pdata,
};
static struct platform_device *adm8668_devs[] = {
&adm8668_eth0_device,
&adm8668_eth1_device,
&adm8668_nor_device,
&adm8668_usb_device,
};
static void adm8668_fetch_mac(int unit)
@ -162,6 +191,21 @@ static void adm8668_fetch_mac(int unit)
memcpy(pdata->mac, mac, sizeof(pdata->mac));
}
static void adm8668_ehci_workaround(void)
{
u32 chipid;
chipid = ADM8668_CONFIG_REG(ADM8668_CR0);
ADM8668_CONFIG_REG(ADM8668_CR66) = 0x0C1600D9;
if (chipid == 0x86880001)
return;
ADM8668_CONFIG_REG(ADM8668_CR66) &= ~(3 << 20);
ADM8668_CONFIG_REG(ADM8668_CR66) |= (1 << 20);
pr_info("ADM8668: applied USB workaround\n");
}
int __devinit adm8668_devs_register(void)
{
@ -173,6 +217,7 @@ int __devinit adm8668_devs_register(void)
adm8668_fetch_mac(0);
adm8668_fetch_mac(1);
adm8668_ehci_workaround();
return platform_add_devices(adm8668_devs, ARRAY_SIZE(adm8668_devs));
}

1
target/linux/adm8668/files/arch/mips/include/asm/mach-adm8668/adm8668.h
View file

@ -64,6 +64,7 @@
#define ADM8668_CR0 0x00
#define ADM8668_CR1 0x04
#define ADM8668_CR3 0x0C
#define ADM8668_CR66 0x108
/** For GPIO control **/
#define GPIO_REG 0x5C /* on WLAN */