mirror of
git://projects.qi-hardware.com/openwrt-xburst.git
synced 2024-12-28 15:05:31 +02:00
342ac43e68
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@30655 3c298f89-4303-0410-b956-a3cf2f4a3e73
381 lines
9.0 KiB
C
381 lines
9.0 KiB
C
/*
|
|
* Ralink RT3662/RT3883 SoC platform device registration
|
|
*
|
|
* Copyright (C) 2011-2012 Gabor Juhos <juhosg@openwrt.org>
|
|
*
|
|
* 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/platform_device.h>
|
|
#include <linux/mtd/mtd.h>
|
|
#include <linux/mtd/physmap.h>
|
|
#include <linux/mtd/partitions.h>
|
|
#include <linux/dma-mapping.h>
|
|
#include <linux/delay.h>
|
|
#include <linux/err.h>
|
|
#include <linux/clk.h>
|
|
#include <linux/rt2x00_platform.h>
|
|
|
|
#include <asm/addrspace.h>
|
|
|
|
#include <asm/mach-ralink/rt3883.h>
|
|
#include <asm/mach-ralink/rt3883_regs.h>
|
|
#include <asm/mach-ralink/rt3883_ehci_platform.h>
|
|
#include <asm/mach-ralink/rt3883_ohci_platform.h>
|
|
#include <asm/mach-ralink/ramips_nand_platform.h>
|
|
#include "devices.h"
|
|
|
|
#include <ramips_eth_platform.h>
|
|
|
|
static struct resource rt3883_flash0_resources[] = {
|
|
{
|
|
.flags = IORESOURCE_MEM,
|
|
.start = RT3883_BOOT_BASE,
|
|
.end = RT3883_BOOT_BASE + RT3883_BOOT_SIZE - 1,
|
|
},
|
|
};
|
|
|
|
struct physmap_flash_data rt3883_flash0_data;
|
|
static struct platform_device rt3883_flash0_device = {
|
|
.name = "physmap-flash",
|
|
.resource = rt3883_flash0_resources,
|
|
.num_resources = ARRAY_SIZE(rt3883_flash0_resources),
|
|
.dev = {
|
|
.platform_data = &rt3883_flash0_data,
|
|
},
|
|
};
|
|
|
|
static struct resource rt3883_flash1_resources[] = {
|
|
{
|
|
.flags = IORESOURCE_MEM,
|
|
.start = RT3883_SRAM_BASE,
|
|
.end = RT3883_SRAM_BASE + RT3883_SRAM_SIZE - 1,
|
|
},
|
|
};
|
|
|
|
struct physmap_flash_data rt3883_flash1_data;
|
|
static struct platform_device rt3883_flash1_device = {
|
|
.name = "physmap-flash",
|
|
.resource = rt3883_flash1_resources,
|
|
.num_resources = ARRAY_SIZE(rt3883_flash1_resources),
|
|
.dev = {
|
|
.platform_data = &rt3883_flash1_data,
|
|
},
|
|
};
|
|
|
|
static int rt3883_flash_instance __initdata;
|
|
void __init rt3883_register_pflash(unsigned int id)
|
|
{
|
|
struct platform_device *pdev;
|
|
struct physmap_flash_data *pdata;
|
|
void __iomem *fscc_base;
|
|
u32 t;
|
|
int reg;
|
|
|
|
switch (id) {
|
|
case 0:
|
|
pdev = &rt3883_flash0_device;
|
|
reg = RT3883_FSCC_REG_FLASH_CFG0;
|
|
break;
|
|
case 1:
|
|
pdev = &rt3883_flash1_device;
|
|
reg = RT3883_FSCC_REG_FLASH_CFG1;
|
|
break;
|
|
default:
|
|
return;
|
|
}
|
|
|
|
pdata = pdev->dev.platform_data;
|
|
|
|
fscc_base = ioremap(RT3883_FSCC_BASE, RT3883_FSCC_SIZE);
|
|
if (!fscc_base)
|
|
panic("RT3883: ioremap failed for FSCC");
|
|
|
|
t = __raw_readl(fscc_base + reg);
|
|
iounmap(fscc_base);
|
|
|
|
t = (t >> RT3883_FLASH_CFG_WIDTH_SHIFT) & RT3883_FLASH_CFG_WIDTH_MASK;
|
|
switch (t) {
|
|
case RT3883_FLASH_CFG_WIDTH_8BIT:
|
|
pdata->width = 1;
|
|
break;
|
|
case RT3883_FLASH_CFG_WIDTH_16BIT:
|
|
pdata->width = 2;
|
|
break;
|
|
case RT3883_FLASH_CFG_WIDTH_32BIT:
|
|
if (id == 1) {
|
|
pdata->width = 4;
|
|
break;
|
|
}
|
|
/* fallthrough */
|
|
default:
|
|
pr_warn("RT3883: flash bank%d: invalid width detected\n", id);
|
|
return;
|
|
}
|
|
|
|
pdev->id = rt3883_flash_instance;
|
|
|
|
platform_device_register(pdev);
|
|
rt3883_flash_instance++;
|
|
}
|
|
|
|
static atomic_t rt3883_usb_use_count = ATOMIC_INIT(0);
|
|
|
|
static void rt3883_usb_host_start(void)
|
|
{
|
|
u32 t;
|
|
|
|
if (atomic_inc_return(&rt3883_usb_use_count) != 1)
|
|
return;
|
|
|
|
t = rt3883_sysc_rr(RT3883_SYSC_REG_USB_PS);
|
|
|
|
#if 0
|
|
/* put the HOST controller into reset */
|
|
t = rt3883_sysc_rr(RT3883_SYSC_REG_RSTCTRL);
|
|
t |= RT3883_RSTCTRL_UHST;
|
|
rt3883_sysc_wr(t, RT3883_SYSC_REG_RSTCTRL);
|
|
#endif
|
|
|
|
/* enable clock for port0's and port1's phys */
|
|
t = rt3883_sysc_rr(RT3883_SYSC_REG_CLKCFG1);
|
|
t = t | RT3883_CLKCFG1_UPHY0_CLK_EN | RT3883_CLKCFG1_UPHY1_CLK_EN;
|
|
rt3883_sysc_wr(t, RT3883_SYSC_REG_CLKCFG1);
|
|
mdelay(500);
|
|
|
|
/* pull USBHOST and USBDEV out from reset */
|
|
t = rt3883_sysc_rr(RT3883_SYSC_REG_RSTCTRL);
|
|
t &= ~(RT3883_RSTCTRL_UHST | RT3883_RSTCTRL_UDEV);
|
|
rt3883_sysc_wr(t, RT3883_SYSC_REG_RSTCTRL);
|
|
mdelay(500);
|
|
|
|
/* enable host mode */
|
|
t = rt3883_sysc_rr(RT3883_SYSC_REG_SYSCFG1);
|
|
t |= RT3883_SYSCFG1_USB0_HOST_MODE;
|
|
rt3883_sysc_wr(t, RT3883_SYSC_REG_SYSCFG1);
|
|
|
|
t = rt3883_sysc_rr(RT3883_SYSC_REG_USB_PS);
|
|
}
|
|
|
|
static void rt3883_usb_host_stop(void)
|
|
{
|
|
u32 t;
|
|
|
|
if (atomic_dec_return(&rt3883_usb_use_count) != 0)
|
|
return;
|
|
|
|
/* put USBHOST and USBDEV into reset */
|
|
t = rt3883_sysc_rr(RT3883_SYSC_REG_RSTCTRL);
|
|
t |= RT3883_RSTCTRL_UHST | RT3883_RSTCTRL_UDEV;
|
|
rt3883_sysc_wr(t, RT3883_SYSC_REG_RSTCTRL);
|
|
udelay(10000);
|
|
|
|
/* disable clock for port0's and port1's phys*/
|
|
t = rt3883_sysc_rr(RT3883_SYSC_REG_CLKCFG1);
|
|
t &= ~(RT3883_CLKCFG1_UPHY0_CLK_EN | RT3883_CLKCFG1_UPHY1_CLK_EN);
|
|
rt3883_sysc_wr(t, RT3883_SYSC_REG_CLKCFG1);
|
|
udelay(10000);
|
|
}
|
|
|
|
static struct rt3883_ehci_platform_data rt3883_ehci_data = {
|
|
.start_hw = rt3883_usb_host_start,
|
|
.stop_hw = rt3883_usb_host_stop,
|
|
};
|
|
|
|
static struct resource rt3883_ehci_resources[] = {
|
|
{
|
|
.start = RT3883_EHCI_BASE,
|
|
.end = RT3883_EHCI_BASE + PAGE_SIZE - 1,
|
|
.flags = IORESOURCE_MEM,
|
|
}, {
|
|
.start = RT3883_INTC_IRQ_UHST,
|
|
.end = RT3883_INTC_IRQ_UHST,
|
|
.flags = IORESOURCE_IRQ,
|
|
},
|
|
};
|
|
|
|
static u64 rt3883_ehci_dmamask = DMA_BIT_MASK(32);
|
|
static struct platform_device rt3883_ehci_device = {
|
|
.name = "rt3883-ehci",
|
|
.id = -1,
|
|
.resource = rt3883_ehci_resources,
|
|
.num_resources = ARRAY_SIZE(rt3883_ehci_resources),
|
|
.dev = {
|
|
.dma_mask = &rt3883_ehci_dmamask,
|
|
.coherent_dma_mask = DMA_BIT_MASK(32),
|
|
.platform_data = &rt3883_ehci_data,
|
|
},
|
|
};
|
|
|
|
static struct resource rt3883_ohci_resources[] = {
|
|
{
|
|
.start = RT3883_OHCI_BASE,
|
|
.end = RT3883_OHCI_BASE + PAGE_SIZE - 1,
|
|
.flags = IORESOURCE_MEM,
|
|
}, {
|
|
.start = RT3883_INTC_IRQ_UHST,
|
|
.end = RT3883_INTC_IRQ_UHST,
|
|
.flags = IORESOURCE_IRQ,
|
|
},
|
|
};
|
|
|
|
static struct rt3883_ohci_platform_data rt3883_ohci_data = {
|
|
.start_hw = rt3883_usb_host_start,
|
|
.stop_hw = rt3883_usb_host_stop,
|
|
};
|
|
|
|
static u64 rt3883_ohci_dmamask = DMA_BIT_MASK(32);
|
|
static struct platform_device rt3883_ohci_device = {
|
|
.name = "rt3883-ohci",
|
|
.id = -1,
|
|
.resource = rt3883_ohci_resources,
|
|
.num_resources = ARRAY_SIZE(rt3883_ohci_resources),
|
|
.dev = {
|
|
.dma_mask = &rt3883_ohci_dmamask,
|
|
.coherent_dma_mask = DMA_BIT_MASK(32),
|
|
.platform_data = &rt3883_ohci_data,
|
|
},
|
|
};
|
|
|
|
void __init rt3883_register_usbhost(void)
|
|
{
|
|
platform_device_register(&rt3883_ehci_device);
|
|
platform_device_register(&rt3883_ohci_device);
|
|
}
|
|
|
|
static void rt3883_fe_reset(void)
|
|
{
|
|
u32 t;
|
|
|
|
t = rt3883_sysc_rr(RT3883_SYSC_REG_RSTCTRL);
|
|
t |= RT3883_RSTCTRL_FE;
|
|
rt3883_sysc_wr(t , RT3883_SYSC_REG_RSTCTRL);
|
|
|
|
t &= ~RT3883_RSTCTRL_FE;
|
|
rt3883_sysc_wr(t, RT3883_SYSC_REG_RSTCTRL);
|
|
}
|
|
|
|
static struct resource rt3883_eth_resources[] = {
|
|
{
|
|
.start = RT3883_FE_BASE,
|
|
.end = RT3883_FE_BASE + PAGE_SIZE - 1,
|
|
.flags = IORESOURCE_MEM,
|
|
}, {
|
|
.start = RT3883_CPU_IRQ_FE,
|
|
.end = RT3883_CPU_IRQ_FE,
|
|
.flags = IORESOURCE_IRQ,
|
|
},
|
|
};
|
|
|
|
struct ramips_eth_platform_data rt3883_eth_data = {
|
|
.mac = { 0x00, 0x11, 0x22, 0x33, 0x44, 0x55 },
|
|
.reset_fe = rt3883_fe_reset,
|
|
.min_pkt_len = 64,
|
|
};
|
|
|
|
static struct platform_device rt3883_eth_device = {
|
|
.name = "ramips_eth",
|
|
.resource = rt3883_eth_resources,
|
|
.num_resources = ARRAY_SIZE(rt3883_eth_resources),
|
|
.dev = {
|
|
.platform_data = &rt3883_eth_data,
|
|
}
|
|
};
|
|
|
|
void __init rt3883_register_ethernet(void)
|
|
{
|
|
struct clk *clk;
|
|
|
|
clk = clk_get(NULL, "sys");
|
|
if (IS_ERR(clk))
|
|
panic("unable to get SYS clock, err=%ld", PTR_ERR(clk));
|
|
|
|
rt3883_eth_data.sys_freq = clk_get_rate(clk);
|
|
|
|
platform_device_register(&rt3883_eth_device);
|
|
}
|
|
|
|
static struct resource rt3883_wlan_resources[] = {
|
|
{
|
|
.start = RT3883_WLAN_BASE,
|
|
.end = RT3883_WLAN_BASE + 0x3FFFF,
|
|
.flags = IORESOURCE_MEM,
|
|
}, {
|
|
.start = RT3883_CPU_IRQ_WLAN,
|
|
.end = RT3883_CPU_IRQ_WLAN,
|
|
.flags = IORESOURCE_IRQ,
|
|
},
|
|
};
|
|
|
|
struct rt2x00_platform_data rt3883_wlan_data;
|
|
static struct platform_device rt3883_wlan_device = {
|
|
.name = "rt2800_wmac",
|
|
.resource = rt3883_wlan_resources,
|
|
.num_resources = ARRAY_SIZE(rt3883_wlan_resources),
|
|
.dev = {
|
|
.platform_data = &rt3883_wlan_data,
|
|
}
|
|
};
|
|
|
|
void __init rt3883_register_wlan(void)
|
|
{
|
|
rt3883_wlan_data.eeprom_file_name = "RT3883.eeprom",
|
|
platform_device_register(&rt3883_wlan_device);
|
|
}
|
|
|
|
static struct resource rt3883_wdt_resources[] = {
|
|
{
|
|
.start = RT3883_TIMER_BASE,
|
|
.end = RT3883_TIMER_BASE + RT3883_TIMER_SIZE - 1,
|
|
.flags = IORESOURCE_MEM,
|
|
},
|
|
};
|
|
|
|
static struct platform_device rt3883_wdt_device = {
|
|
.name = "ramips-wdt",
|
|
.id = -1,
|
|
.resource = rt3883_wdt_resources,
|
|
.num_resources = ARRAY_SIZE(rt3883_wdt_resources),
|
|
};
|
|
|
|
void __init rt3883_register_wdt(bool enable_reset)
|
|
{
|
|
if (enable_reset) {
|
|
u32 t;
|
|
|
|
/* enable WDT reset output on GPIO 2 */
|
|
t = rt3883_sysc_rr(RT3883_SYSC_REG_SYSCFG1);
|
|
t |= RT3883_SYSCFG1_GPIO2_AS_WDT_OUT;
|
|
rt3883_sysc_wr(t, RT3883_SYSC_REG_SYSCFG1);
|
|
}
|
|
|
|
platform_device_register(&rt3883_wdt_device);
|
|
}
|
|
|
|
static struct resource rt3883_nand_resources[] = {
|
|
{
|
|
.flags = IORESOURCE_MEM,
|
|
.start = RT3883_NANDC_BASE,
|
|
.end = RT3883_NANDC_BASE + RT3883_NANDC_SIZE - 1,
|
|
},
|
|
};
|
|
|
|
struct ramips_nand_platform_data rt3883_nand_data;
|
|
static struct platform_device rt3883_nand_device = {
|
|
.name = RAMIPS_NAND_DRIVER_NAME,
|
|
.id = -1,
|
|
.resource = rt3883_nand_resources,
|
|
.num_resources = ARRAY_SIZE(rt3883_nand_resources),
|
|
.dev = {
|
|
.platform_data = &rt3883_nand_data,
|
|
},
|
|
};
|
|
|
|
void __init rt3883_register_nand(void)
|
|
{
|
|
platform_device_register(&rt3883_nand_device);
|
|
}
|