| 1 | /* |
| 2 | * Ralink RT305x SoC platform device registration |
| 3 | * |
| 4 | * Copyright (C) 2009-2010 Gabor Juhos <juhosg@openwrt.org> |
| 5 | * |
| 6 | * This program is free software; you can redistribute it and/or modify it |
| 7 | * under the terms of the GNU General Public License version 2 as published |
| 8 | * by the Free Software Foundation. |
| 9 | */ |
| 10 | |
| 11 | #include <linux/kernel.h> |
| 12 | #include <linux/platform_device.h> |
| 13 | #include <linux/err.h> |
| 14 | #include <linux/clk.h> |
| 15 | #include <linux/mtd/mtd.h> |
| 16 | #include <linux/mtd/physmap.h> |
| 17 | #include <linux/spi/spi.h> |
| 18 | #include <linux/rt2x00_platform.h> |
| 19 | |
| 20 | #include <asm/addrspace.h> |
| 21 | |
| 22 | #include <asm/mach-ralink/rt305x.h> |
| 23 | #include <asm/mach-ralink/rt305x_regs.h> |
| 24 | #include "devices.h" |
| 25 | |
| 26 | #include <ramips_eth_platform.h> |
| 27 | #include <rt305x_esw_platform.h> |
| 28 | |
| 29 | static struct resource rt305x_flash0_resources[] = { |
| 30 | { |
| 31 | .flags = IORESOURCE_MEM, |
| 32 | .start = KSEG1ADDR(RT305X_FLASH0_BASE), |
| 33 | .end = KSEG1ADDR(RT305X_FLASH0_BASE) + |
| 34 | RT305X_FLASH0_SIZE - 1, |
| 35 | }, |
| 36 | }; |
| 37 | |
| 38 | struct physmap_flash_data rt305x_flash0_data; |
| 39 | static struct platform_device rt305x_flash0_device = { |
| 40 | .name = "physmap-flash", |
| 41 | .resource = rt305x_flash0_resources, |
| 42 | .num_resources = ARRAY_SIZE(rt305x_flash0_resources), |
| 43 | .dev = { |
| 44 | .platform_data = &rt305x_flash0_data, |
| 45 | }, |
| 46 | }; |
| 47 | |
| 48 | static struct resource rt305x_flash1_resources[] = { |
| 49 | { |
| 50 | .flags = IORESOURCE_MEM, |
| 51 | .start = KSEG1ADDR(RT305X_FLASH1_BASE), |
| 52 | .end = KSEG1ADDR(RT305X_FLASH1_BASE) + |
| 53 | RT305X_FLASH1_SIZE - 1, |
| 54 | }, |
| 55 | }; |
| 56 | |
| 57 | struct physmap_flash_data rt305x_flash1_data; |
| 58 | static struct platform_device rt305x_flash1_device = { |
| 59 | .name = "physmap-flash", |
| 60 | .resource = rt305x_flash1_resources, |
| 61 | .num_resources = ARRAY_SIZE(rt305x_flash1_resources), |
| 62 | .dev = { |
| 63 | .platform_data = &rt305x_flash1_data, |
| 64 | }, |
| 65 | }; |
| 66 | |
| 67 | static int rt305x_flash_instance __initdata; |
| 68 | void __init rt305x_register_flash(unsigned int id) |
| 69 | { |
| 70 | struct platform_device *pdev; |
| 71 | struct physmap_flash_data *pdata; |
| 72 | u32 t; |
| 73 | int reg; |
| 74 | |
| 75 | switch (id) { |
| 76 | case 0: |
| 77 | pdev = &rt305x_flash0_device; |
| 78 | reg = MEMC_REG_FLASH_CFG0; |
| 79 | break; |
| 80 | case 1: |
| 81 | pdev = &rt305x_flash1_device; |
| 82 | reg = MEMC_REG_FLASH_CFG1; |
| 83 | break; |
| 84 | default: |
| 85 | return; |
| 86 | } |
| 87 | |
| 88 | t = rt305x_memc_rr(reg); |
| 89 | t = (t >> FLASH_CFG_WIDTH_SHIFT) & FLASH_CFG_WIDTH_MASK; |
| 90 | |
| 91 | pdata = pdev->dev.platform_data; |
| 92 | switch (t) { |
| 93 | case FLASH_CFG_WIDTH_8BIT: |
| 94 | pdata->width = 1; |
| 95 | break; |
| 96 | case FLASH_CFG_WIDTH_16BIT: |
| 97 | pdata->width = 2; |
| 98 | break; |
| 99 | case FLASH_CFG_WIDTH_32BIT: |
| 100 | pdata->width = 4; |
| 101 | break; |
| 102 | default: |
| 103 | printk(KERN_ERR "RT305x: flash bank%u witdh is invalid\n", id); |
| 104 | return; |
| 105 | } |
| 106 | |
| 107 | pdev->id = rt305x_flash_instance; |
| 108 | |
| 109 | platform_device_register(pdev); |
| 110 | rt305x_flash_instance++; |
| 111 | } |
| 112 | |
| 113 | static void rt305x_fe_reset(void) |
| 114 | { |
| 115 | rt305x_sysc_wr(RT305X_RESET_FE, SYSC_REG_RESET_CTRL); |
| 116 | rt305x_sysc_wr(0, SYSC_REG_RESET_CTRL); |
| 117 | } |
| 118 | |
| 119 | static struct resource rt305x_eth_resources[] = { |
| 120 | { |
| 121 | .start = RT305X_FE_BASE, |
| 122 | .end = RT305X_FE_BASE + PAGE_SIZE - 1, |
| 123 | .flags = IORESOURCE_MEM, |
| 124 | }, { |
| 125 | .start = RT305X_CPU_IRQ_FE, |
| 126 | .end = RT305X_CPU_IRQ_FE, |
| 127 | .flags = IORESOURCE_IRQ, |
| 128 | }, |
| 129 | }; |
| 130 | |
| 131 | static struct ramips_eth_platform_data ramips_eth_data = { |
| 132 | .mac = { 0x00, 0x11, 0x22, 0x33, 0x44, 0x55 }, |
| 133 | .reset_fe = rt305x_fe_reset, |
| 134 | .min_pkt_len = 64, |
| 135 | }; |
| 136 | |
| 137 | static struct platform_device rt305x_eth_device = { |
| 138 | .name = "ramips_eth", |
| 139 | .resource = rt305x_eth_resources, |
| 140 | .num_resources = ARRAY_SIZE(rt305x_eth_resources), |
| 141 | .dev = { |
| 142 | .platform_data = &ramips_eth_data, |
| 143 | } |
| 144 | }; |
| 145 | |
| 146 | static struct resource rt305x_esw_resources[] = { |
| 147 | { |
| 148 | .start = RT305X_SWITCH_BASE, |
| 149 | .end = RT305X_SWITCH_BASE + PAGE_SIZE - 1, |
| 150 | .flags = IORESOURCE_MEM, |
| 151 | }, |
| 152 | }; |
| 153 | |
| 154 | struct rt305x_esw_platform_data rt305x_esw_data = { |
| 155 | .vlan_config = RT305X_ESW_VLAN_CONFIG_NONE, |
| 156 | .reg_initval_fct2 = 0x00d6500c, |
| 157 | .reg_initval_fpa2 = 0x3f502b28, |
| 158 | }; |
| 159 | |
| 160 | static struct platform_device rt305x_esw_device = { |
| 161 | .name = "rt305x-esw", |
| 162 | .resource = rt305x_esw_resources, |
| 163 | .num_resources = ARRAY_SIZE(rt305x_esw_resources), |
| 164 | .dev = { |
| 165 | .platform_data = &rt305x_esw_data, |
| 166 | } |
| 167 | }; |
| 168 | |
| 169 | void __init rt305x_register_ethernet(void) |
| 170 | { |
| 171 | struct clk *clk; |
| 172 | |
| 173 | clk = clk_get(NULL, "sys"); |
| 174 | if (IS_ERR(clk)) |
| 175 | panic("unable to get SYS clock, err=%ld", PTR_ERR(clk)); |
| 176 | |
| 177 | ramips_eth_data.sys_freq = clk_get_rate(clk); |
| 178 | |
| 179 | platform_device_register(&rt305x_esw_device); |
| 180 | platform_device_register(&rt305x_eth_device); |
| 181 | } |
| 182 | |
| 183 | static struct resource rt305x_wifi_resources[] = { |
| 184 | { |
| 185 | .start = RT305X_WMAC_BASE, |
| 186 | .end = RT305X_WMAC_BASE + 0x3FFFF, |
| 187 | .flags = IORESOURCE_MEM, |
| 188 | }, { |
| 189 | .start = RT305X_CPU_IRQ_WNIC, |
| 190 | .end = RT305X_CPU_IRQ_WNIC, |
| 191 | .flags = IORESOURCE_IRQ, |
| 192 | }, |
| 193 | }; |
| 194 | |
| 195 | static struct rt2x00_platform_data rt305x_wifi_data; |
| 196 | static struct platform_device rt305x_wifi_device = { |
| 197 | .name = "rt2800_wmac", |
| 198 | .resource = rt305x_wifi_resources, |
| 199 | .num_resources = ARRAY_SIZE(rt305x_wifi_resources), |
| 200 | .dev = { |
| 201 | .platform_data = &rt305x_wifi_data, |
| 202 | } |
| 203 | }; |
| 204 | |
| 205 | void __init rt305x_register_wifi(void) |
| 206 | { |
| 207 | rt305x_wifi_data.eeprom_file_name = "RT305X.eeprom"; |
| 208 | platform_device_register(&rt305x_wifi_device); |
| 209 | } |
| 210 | |
| 211 | static struct resource rt305x_wdt_resources[] = { |
| 212 | { |
| 213 | .start = RT305X_TIMER_BASE, |
| 214 | .end = RT305X_TIMER_BASE + RT305X_TIMER_SIZE - 1, |
| 215 | .flags = IORESOURCE_MEM, |
| 216 | }, |
| 217 | }; |
| 218 | |
| 219 | static struct platform_device rt305x_wdt_device = { |
| 220 | .name = "ramips-wdt", |
| 221 | .id = -1, |
| 222 | .resource = rt305x_wdt_resources, |
| 223 | .num_resources = ARRAY_SIZE(rt305x_wdt_resources), |
| 224 | }; |
| 225 | |
| 226 | void __init rt305x_register_wdt(void) |
| 227 | { |
| 228 | u32 t; |
| 229 | |
| 230 | /* enable WDT reset output on pin SRAM_CS_N */ |
| 231 | t = rt305x_sysc_rr(SYSC_REG_SYSTEM_CONFIG); |
| 232 | t |= SYSTEM_CONFIG_SRAM_CS0_MODE_WDT << |
| 233 | SYSTEM_CONFIG_SRAM_CS0_MODE_SHIFT; |
| 234 | rt305x_sysc_wr(t, SYSC_REG_SYSTEM_CONFIG); |
| 235 | |
| 236 | platform_device_register(&rt305x_wdt_device); |
| 237 | } |
| 238 | |
| 239 | static struct resource rt305x_spi_resources[] = { |
| 240 | { |
| 241 | .flags = IORESOURCE_MEM, |
| 242 | .start = RT305X_SPI_BASE, |
| 243 | .end = RT305X_SPI_BASE + RT305X_SPI_SIZE - 1, |
| 244 | }, |
| 245 | }; |
| 246 | |
| 247 | static struct platform_device rt305x_spi_device = { |
| 248 | .name = "ramips-spi", |
| 249 | .id = 0, |
| 250 | .resource = rt305x_spi_resources, |
| 251 | .num_resources = ARRAY_SIZE(rt305x_spi_resources), |
| 252 | }; |
| 253 | |
| 254 | void __init rt305x_register_spi(struct spi_board_info *info, int n) |
| 255 | { |
| 256 | spi_register_board_info(info, n); |
| 257 | platform_device_register(&rt305x_spi_device); |
| 258 | } |
| 259 | |
| 260 | static struct resource rt305x_usb_resources[] = { |
| 261 | { |
| 262 | .start = RT305X_OTG_BASE, |
| 263 | .end = RT305X_OTG_BASE + 0x3FFFF, |
| 264 | .flags = IORESOURCE_MEM, |
| 265 | }, { |
| 266 | .start = RT305X_INTC_IRQ_OTG, |
| 267 | .end = RT305X_INTC_IRQ_OTG, |
| 268 | .flags = IORESOURCE_IRQ, |
| 269 | }, |
| 270 | }; |
| 271 | |
| 272 | static struct platform_device rt305x_usb_device = { |
| 273 | .name = "dwc_otg", |
| 274 | .resource = rt305x_usb_resources, |
| 275 | .num_resources = ARRAY_SIZE(rt305x_usb_resources), |
| 276 | .dev = { |
| 277 | .platform_data = NULL, |
| 278 | } |
| 279 | }; |
| 280 | |
| 281 | void __init rt305x_register_usb(void) |
| 282 | { |
| 283 | platform_device_register(&rt305x_usb_device); |
| 284 | } |
| 285 | |
