+++ /dev/null
-/*
- * 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/spi/spi.h>
-#include <linux/delay.h>
-#include <linux/err.h>
-#include <linux/clk.h>
-#include <linux/rt2x00_platform.h>
-#include <linux/usb/ehci_pdriver.h>
-#include <linux/usb/ohci_pdriver.h>
-
-#include <asm/addrspace.h>
-
-#include <asm/mach-ralink/rt3883.h>
-#include <asm/mach-ralink/rt3883_regs.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_pwr_ref = ATOMIC_INIT(0);
-
-static int rt3883_usb_power_on(struct platform_device *pdev)
-{
-
- if (atomic_inc_return(&rt3883_usb_pwr_ref) == 1) {
- u32 t;
-
- t = rt3883_sysc_rr(RT3883_SYSC_REG_USB_PS);
-
- /* enable 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);
- 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);
- }
-
- return 0;
-}
-
-static void rt3883_usb_power_off(struct platform_device *pdev)
-{
- if (atomic_dec_return(&rt3883_usb_pwr_ref) == 0) {
- u32 t;
-
- /* 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 usb_ehci_pdata rt3883_ehci_data = {
- .power_on = rt3883_usb_power_on,
- .power_off = rt3883_usb_power_off,
-};
-
-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 = "ehci-platform",
- .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 usb_ohci_pdata rt3883_ohci_data = {
- .power_on = rt3883_usb_power_on,
- .power_off = rt3883_usb_power_off,
-};
-
-static u64 rt3883_ohci_dmamask = DMA_BIT_MASK(32);
-static struct platform_device rt3883_ohci_device = {
- .name = "ohci-platform",
- .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 = "soc_wmac.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);
-}
-
-static struct resource rt3883_spi_resources[] = {
- {
- .flags = IORESOURCE_MEM,
- .start = RT3883_SPI_BASE,
- .end = RT3883_SPI_BASE + RT3883_SPI_SIZE - 1,
- },
-};
-
-static struct platform_device rt3883_spi_device = {
- .name = "ramips-spi",
- .id = 0,
- .resource = rt3883_spi_resources,
- .num_resources = ARRAY_SIZE(rt3883_spi_resources),
-};
-
-void __init rt3883_register_spi(struct spi_board_info *info, int n)
-{
- spi_register_board_info(info, n);
- platform_device_register(&rt3883_spi_device);
-}
-
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