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ramips: rt305x: add OHCI/EHCI registration code for RT3352

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git-svn-id: svn://svn.openwrt.org/openwrt/trunk@31402 3c298f89-4303-0410-b956-a3cf2f4a3e73
This commit is contained in:
juhosg
2012-04-21 12:30:48 +00:00
parent 3ff5d8da9a
commit e958af1110
2 changed files with 161 additions and 5 deletions
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132
target/linux/ramips/files/arch/mips/ralink/rt305x/devices.c
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@@ -16,6 +16,8 @@
#include <linux/mtd/physmap.h>
#include <linux/spi/spi.h>
#include <linux/rt2x00_platform.h>
#include <linux/delay.h>
#include <linux/dma-mapping.h>
#include <asm/addrspace.h>
@@ -25,6 +27,8 @@
#include <ramips_eth_platform.h>
#include <rt305x_esw_platform.h>
#include <rt3883_ehci_platform.h>
#include <rt3883_ohci_platform.h>
static struct resource rt305x_flash0_resources[] = {
{
@@ -257,7 +261,7 @@ void __init rt305x_register_spi(struct spi_board_info *info, int n)
platform_device_register(&rt305x_spi_device);
}
static struct resource rt305x_usb_resources[] = {
static struct resource rt305x_dwc_otg_resources[] = {
{
.start = RT305X_OTG_BASE,
.end = RT305X_OTG_BASE + 0x3FFFF,
@@ -269,16 +273,134 @@ static struct resource rt305x_usb_resources[] = {
},
};
static struct platform_device rt305x_usb_device = {
static struct platform_device rt305x_dwc_otg_device = {
.name = "dwc_otg",
.resource = rt305x_usb_resources,
.num_resources = ARRAY_SIZE(rt305x_usb_resources),
.resource = rt305x_dwc_otg_resources,
.num_resources = ARRAY_SIZE(rt305x_dwc_otg_resources),
.dev = {
.platform_data = NULL,
}
};
static atomic_t rt3352_usb_use_count = ATOMIC_INIT(0);
static void rt3352_usb_host_start(void)
{
u32 t;
if (atomic_inc_return(&rt3352_usb_use_count) != 1)
return;
t = rt305x_sysc_rr(RT3352_SYSC_REG_USB_PS);
/* enable clock for port0's and port1's phys */
t = rt305x_sysc_rr(RT3352_SYSC_REG_CLKCFG1);
t = t | RT3352_CLKCFG1_UPHY0_CLK_EN | RT3352_CLKCFG1_UPHY1_CLK_EN;
rt305x_sysc_wr(t, RT3352_SYSC_REG_CLKCFG1);
mdelay(500);
/* pull USBHOST and USBDEV out from reset */
t = rt305x_sysc_rr(RT3352_SYSC_REG_RSTCTRL);
t &= ~(RT3352_RSTCTRL_UHST | RT3352_RSTCTRL_UDEV);
rt305x_sysc_wr(t, RT3352_SYSC_REG_RSTCTRL);
mdelay(500);
/* enable host mode */
t = rt305x_sysc_rr(RT3352_SYSC_REG_SYSCFG1);
t |= RT3352_SYSCFG1_USB0_HOST_MODE;
rt305x_sysc_wr(t, RT3352_SYSC_REG_SYSCFG1);
t = rt305x_sysc_rr(RT3352_SYSC_REG_USB_PS);
}
static void rt3352_usb_host_stop(void)
{
u32 t;
if (atomic_dec_return(&rt3352_usb_use_count) != 0)
return;
/* put USBHOST and USBDEV into reset */
t = rt305x_sysc_rr(RT3352_SYSC_REG_RSTCTRL);
t |= RT3352_RSTCTRL_UHST | RT3352_RSTCTRL_UDEV;
rt305x_sysc_wr(t, RT3352_SYSC_REG_RSTCTRL);
udelay(10000);
/* disable clock for port0's and port1's phys*/
t = rt305x_sysc_rr(RT3352_SYSC_REG_CLKCFG1);
t &= ~(RT3352_CLKCFG1_UPHY0_CLK_EN | RT3352_CLKCFG1_UPHY1_CLK_EN);
rt305x_sysc_wr(t, RT3352_SYSC_REG_CLKCFG1);
udelay(10000);
}
static struct rt3883_ehci_platform_data rt3352_ehci_data = {
.start_hw = rt3352_usb_host_start,
.stop_hw = rt3352_usb_host_stop,
};
static struct resource rt3352_ehci_resources[] = {
{
.start = RT3352_EHCI_BASE,
.end = RT3352_EHCI_BASE + RT3352_EHCI_SIZE - 1,
.flags = IORESOURCE_MEM,
}, {
.start = RT305X_INTC_IRQ_OTG,
.end = RT305X_INTC_IRQ_OTG,
.flags = IORESOURCE_IRQ,
},
};
static u64 rt3352_ehci_dmamask = DMA_BIT_MASK(32);
static struct platform_device rt3352_ehci_device = {
.name = "rt3352-ehci",
.id = -1,
.resource = rt3352_ehci_resources,
.num_resources = ARRAY_SIZE(rt3352_ehci_resources),
.dev = {
.dma_mask = &rt3352_ehci_dmamask,
.coherent_dma_mask = DMA_BIT_MASK(32),
.platform_data = &rt3352_ehci_data,
},
};
static struct resource rt3352_ohci_resources[] = {
{
.start = RT3352_OHCI_BASE,
.end = RT3352_OHCI_BASE + RT3352_OHCI_SIZE - 1,
.flags = IORESOURCE_MEM,
}, {
.start = RT305X_INTC_IRQ_OTG,
.end = RT305X_INTC_IRQ_OTG,
.flags = IORESOURCE_IRQ,
},
};
static struct rt3883_ohci_platform_data rt3352_ohci_data = {
.start_hw = rt3352_usb_host_start,
.stop_hw = rt3352_usb_host_stop,
};
static u64 rt3352_ohci_dmamask = DMA_BIT_MASK(32);
static struct platform_device rt3352_ohci_device = {
.name = "rt3352-ohci",
.id = -1,
.resource = rt3352_ohci_resources,
.num_resources = ARRAY_SIZE(rt3352_ohci_resources),
.dev = {
.dma_mask = &rt3352_ohci_dmamask,
.coherent_dma_mask = DMA_BIT_MASK(32),
.platform_data = &rt3352_ohci_data,
},
};
void __init rt305x_register_usb(void)
{
platform_device_register(&rt305x_usb_device);
if (soc_is_rt305x() || soc_is_rt3350()) {
platform_device_register(&rt305x_dwc_otg_device);
} else if (soc_is_rt3352()) {
platform_device_register(&rt3352_ehci_device);
platform_device_register(&rt3352_ohci_device);
} else {
BUG();
}
}