| 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 | #include <linux/delay.h> |
| 20 | #include <linux/dma-mapping.h> |
| 21 | |
| 22 | #include <asm/addrspace.h> |
| 23 | |
| 24 | #include <asm/mach-ralink/rt305x.h> |
| 25 | #include <asm/mach-ralink/rt305x_regs.h> |
| 26 | #include "devices.h" |
| 27 | |
| 28 | #include <ramips_eth_platform.h> |
| 29 | #include <rt305x_esw_platform.h> |
| 30 | #include <rt3883_ehci_platform.h> |
| 31 | #include <rt3883_ohci_platform.h> |
| 32 | |
| 33 | static struct resource rt305x_flash0_resources[] = { |
| 34 | { |
| 35 | .flags = IORESOURCE_MEM, |
| 36 | .start = KSEG1ADDR(RT305X_FLASH0_BASE), |
| 37 | .end = KSEG1ADDR(RT305X_FLASH0_BASE) + |
| 38 | RT305X_FLASH0_SIZE - 1, |
| 39 | }, |
| 40 | }; |
| 41 | |
| 42 | struct physmap_flash_data rt305x_flash0_data; |
| 43 | static struct platform_device rt305x_flash0_device = { |
| 44 | .name = "physmap-flash", |
| 45 | .resource = rt305x_flash0_resources, |
| 46 | .num_resources = ARRAY_SIZE(rt305x_flash0_resources), |
| 47 | .dev = { |
| 48 | .platform_data = &rt305x_flash0_data, |
| 49 | }, |
| 50 | }; |
| 51 | |
| 52 | static struct resource rt305x_flash1_resources[] = { |
| 53 | { |
| 54 | .flags = IORESOURCE_MEM, |
| 55 | .start = KSEG1ADDR(RT305X_FLASH1_BASE), |
| 56 | .end = KSEG1ADDR(RT305X_FLASH1_BASE) + |
| 57 | RT305X_FLASH1_SIZE - 1, |
| 58 | }, |
| 59 | }; |
| 60 | |
| 61 | struct physmap_flash_data rt305x_flash1_data; |
| 62 | static struct platform_device rt305x_flash1_device = { |
| 63 | .name = "physmap-flash", |
| 64 | .resource = rt305x_flash1_resources, |
| 65 | .num_resources = ARRAY_SIZE(rt305x_flash1_resources), |
| 66 | .dev = { |
| 67 | .platform_data = &rt305x_flash1_data, |
| 68 | }, |
| 69 | }; |
| 70 | |
| 71 | static int rt305x_flash_instance __initdata; |
| 72 | void __init rt305x_register_flash(unsigned int id) |
| 73 | { |
| 74 | struct platform_device *pdev; |
| 75 | struct physmap_flash_data *pdata; |
| 76 | u32 t; |
| 77 | int reg; |
| 78 | |
| 79 | switch (id) { |
| 80 | case 0: |
| 81 | pdev = &rt305x_flash0_device; |
| 82 | reg = MEMC_REG_FLASH_CFG0; |
| 83 | break; |
| 84 | case 1: |
| 85 | pdev = &rt305x_flash1_device; |
| 86 | reg = MEMC_REG_FLASH_CFG1; |
| 87 | break; |
| 88 | default: |
| 89 | return; |
| 90 | } |
| 91 | |
| 92 | t = rt305x_memc_rr(reg); |
| 93 | t = (t >> FLASH_CFG_WIDTH_SHIFT) & FLASH_CFG_WIDTH_MASK; |
| 94 | |
| 95 | pdata = pdev->dev.platform_data; |
| 96 | switch (t) { |
| 97 | case FLASH_CFG_WIDTH_8BIT: |
| 98 | pdata->width = 1; |
| 99 | break; |
| 100 | case FLASH_CFG_WIDTH_16BIT: |
| 101 | pdata->width = 2; |
| 102 | break; |
| 103 | case FLASH_CFG_WIDTH_32BIT: |
| 104 | pdata->width = 4; |
| 105 | break; |
| 106 | default: |
| 107 | printk(KERN_ERR "RT305x: flash bank%u witdh is invalid\n", id); |
| 108 | return; |
| 109 | } |
| 110 | |
| 111 | pdev->id = rt305x_flash_instance; |
| 112 | |
| 113 | platform_device_register(pdev); |
| 114 | rt305x_flash_instance++; |
| 115 | } |
| 116 | |
| 117 | static void rt305x_fe_reset(void) |
| 118 | { |
| 119 | rt305x_sysc_wr(RT305X_RESET_FE, SYSC_REG_RESET_CTRL); |
| 120 | rt305x_sysc_wr(0, SYSC_REG_RESET_CTRL); |
| 121 | } |
| 122 | |
| 123 | static struct resource rt305x_eth_resources[] = { |
| 124 | { |
| 125 | .start = RT305X_FE_BASE, |
| 126 | .end = RT305X_FE_BASE + PAGE_SIZE - 1, |
| 127 | .flags = IORESOURCE_MEM, |
| 128 | }, { |
| 129 | .start = RT305X_CPU_IRQ_FE, |
| 130 | .end = RT305X_CPU_IRQ_FE, |
| 131 | .flags = IORESOURCE_IRQ, |
| 132 | }, |
| 133 | }; |
| 134 | |
| 135 | static struct ramips_eth_platform_data ramips_eth_data = { |
| 136 | .mac = { 0x00, 0x11, 0x22, 0x33, 0x44, 0x55 }, |
| 137 | .reset_fe = rt305x_fe_reset, |
| 138 | .min_pkt_len = 64, |
| 139 | }; |
| 140 | |
| 141 | static struct platform_device rt305x_eth_device = { |
| 142 | .name = "ramips_eth", |
| 143 | .resource = rt305x_eth_resources, |
| 144 | .num_resources = ARRAY_SIZE(rt305x_eth_resources), |
| 145 | .dev = { |
| 146 | .platform_data = &ramips_eth_data, |
| 147 | } |
| 148 | }; |
| 149 | |
| 150 | static struct resource rt305x_esw_resources[] = { |
| 151 | { |
| 152 | .start = RT305X_SWITCH_BASE, |
| 153 | .end = RT305X_SWITCH_BASE + PAGE_SIZE - 1, |
| 154 | .flags = IORESOURCE_MEM, |
| 155 | }, |
| 156 | }; |
| 157 | |
| 158 | struct rt305x_esw_platform_data rt305x_esw_data = { |
| 159 | /* All ports are LAN ports. */ |
| 160 | .vlan_config = RT305X_ESW_VLAN_CONFIG_NONE, |
| 161 | .reg_initval_fct2 = 0x00d6500c, |
| 162 | /* |
| 163 | * ext phy base addr 31, enable port 5 polling, rx/tx clock skew 1, |
| 164 | * turbo mii off, rgmi 3.3v off |
| 165 | * port5: disabled |
| 166 | * port6: enabled, gige, full-duplex, rx/tx-flow-control |
| 167 | */ |
| 168 | .reg_initval_fpa2 = 0x3f502b28, |
| 169 | }; |
| 170 | |
| 171 | static struct platform_device rt305x_esw_device = { |
| 172 | .name = "rt305x-esw", |
| 173 | .resource = rt305x_esw_resources, |
| 174 | .num_resources = ARRAY_SIZE(rt305x_esw_resources), |
| 175 | .dev = { |
| 176 | .platform_data = &rt305x_esw_data, |
| 177 | } |
| 178 | }; |
| 179 | |
| 180 | void __init rt305x_register_ethernet(void) |
| 181 | { |
| 182 | struct clk *clk; |
| 183 | |
| 184 | clk = clk_get(NULL, "sys"); |
| 185 | if (IS_ERR(clk)) |
| 186 | panic("unable to get SYS clock, err=%ld", PTR_ERR(clk)); |
| 187 | |
| 188 | ramips_eth_data.sys_freq = clk_get_rate(clk); |
| 189 | |
| 190 | platform_device_register(&rt305x_esw_device); |
| 191 | platform_device_register(&rt305x_eth_device); |
| 192 | } |
| 193 | |
| 194 | static struct resource rt305x_wifi_resources[] = { |
| 195 | { |
| 196 | .start = RT305X_WMAC_BASE, |
| 197 | .end = RT305X_WMAC_BASE + 0x3FFFF, |
| 198 | .flags = IORESOURCE_MEM, |
| 199 | }, { |
| 200 | .start = RT305X_CPU_IRQ_WNIC, |
| 201 | .end = RT305X_CPU_IRQ_WNIC, |
| 202 | .flags = IORESOURCE_IRQ, |
| 203 | }, |
| 204 | }; |
| 205 | |
| 206 | static struct rt2x00_platform_data rt305x_wifi_data; |
| 207 | static struct platform_device rt305x_wifi_device = { |
| 208 | .name = "rt2800_wmac", |
| 209 | .resource = rt305x_wifi_resources, |
| 210 | .num_resources = ARRAY_SIZE(rt305x_wifi_resources), |
| 211 | .dev = { |
| 212 | .platform_data = &rt305x_wifi_data, |
| 213 | } |
| 214 | }; |
| 215 | |
| 216 | void __init rt305x_register_wifi(void) |
| 217 | { |
| 218 | rt305x_wifi_data.eeprom_file_name = "RT305X.eeprom"; |
| 219 | platform_device_register(&rt305x_wifi_device); |
| 220 | } |
| 221 | |
| 222 | static struct resource rt305x_wdt_resources[] = { |
| 223 | { |
| 224 | .start = RT305X_TIMER_BASE, |
| 225 | .end = RT305X_TIMER_BASE + RT305X_TIMER_SIZE - 1, |
| 226 | .flags = IORESOURCE_MEM, |
| 227 | }, |
| 228 | }; |
| 229 | |
| 230 | static struct platform_device rt305x_wdt_device = { |
| 231 | .name = "ramips-wdt", |
| 232 | .id = -1, |
| 233 | .resource = rt305x_wdt_resources, |
| 234 | .num_resources = ARRAY_SIZE(rt305x_wdt_resources), |
| 235 | }; |
| 236 | |
| 237 | void __init rt305x_register_wdt(void) |
| 238 | { |
| 239 | u32 t; |
| 240 | |
| 241 | /* enable WDT reset output on pin SRAM_CS_N */ |
| 242 | t = rt305x_sysc_rr(SYSC_REG_SYSTEM_CONFIG); |
| 243 | t |= RT305X_SYSCFG_SRAM_CS0_MODE_WDT << |
| 244 | RT305X_SYSCFG_SRAM_CS0_MODE_SHIFT; |
| 245 | rt305x_sysc_wr(t, SYSC_REG_SYSTEM_CONFIG); |
| 246 | |
| 247 | platform_device_register(&rt305x_wdt_device); |
| 248 | } |
| 249 | |
| 250 | static struct resource rt305x_spi_resources[] = { |
| 251 | { |
| 252 | .flags = IORESOURCE_MEM, |
| 253 | .start = RT305X_SPI_BASE, |
| 254 | .end = RT305X_SPI_BASE + RT305X_SPI_SIZE - 1, |
| 255 | }, |
| 256 | }; |
| 257 | |
| 258 | static struct platform_device rt305x_spi_device = { |
| 259 | .name = "ramips-spi", |
| 260 | .id = 0, |
| 261 | .resource = rt305x_spi_resources, |
| 262 | .num_resources = ARRAY_SIZE(rt305x_spi_resources), |
| 263 | }; |
| 264 | |
| 265 | void __init rt305x_register_spi(struct spi_board_info *info, int n) |
| 266 | { |
| 267 | spi_register_board_info(info, n); |
| 268 | platform_device_register(&rt305x_spi_device); |
| 269 | } |
| 270 | |
| 271 | static struct resource rt305x_dwc_otg_resources[] = { |
| 272 | { |
| 273 | .start = RT305X_OTG_BASE, |
| 274 | .end = RT305X_OTG_BASE + 0x3FFFF, |
| 275 | .flags = IORESOURCE_MEM, |
| 276 | }, { |
| 277 | .start = RT305X_INTC_IRQ_OTG, |
| 278 | .end = RT305X_INTC_IRQ_OTG, |
| 279 | .flags = IORESOURCE_IRQ, |
| 280 | }, |
| 281 | }; |
| 282 | |
| 283 | static struct platform_device rt305x_dwc_otg_device = { |
| 284 | .name = "dwc_otg", |
| 285 | .resource = rt305x_dwc_otg_resources, |
| 286 | .num_resources = ARRAY_SIZE(rt305x_dwc_otg_resources), |
| 287 | .dev = { |
| 288 | .platform_data = NULL, |
| 289 | } |
| 290 | }; |
| 291 | |
| 292 | static atomic_t rt3352_usb_use_count = ATOMIC_INIT(0); |
| 293 | |
| 294 | static void rt3352_usb_host_start(void) |
| 295 | { |
| 296 | u32 t; |
| 297 | |
| 298 | if (atomic_inc_return(&rt3352_usb_use_count) != 1) |
| 299 | return; |
| 300 | |
| 301 | t = rt305x_sysc_rr(RT3352_SYSC_REG_USB_PS); |
| 302 | |
| 303 | /* enable clock for port0's and port1's phys */ |
| 304 | t = rt305x_sysc_rr(RT3352_SYSC_REG_CLKCFG1); |
| 305 | t = t | RT3352_CLKCFG1_UPHY0_CLK_EN | RT3352_CLKCFG1_UPHY1_CLK_EN; |
| 306 | rt305x_sysc_wr(t, RT3352_SYSC_REG_CLKCFG1); |
| 307 | mdelay(500); |
| 308 | |
| 309 | /* pull USBHOST and USBDEV out from reset */ |
| 310 | t = rt305x_sysc_rr(RT3352_SYSC_REG_RSTCTRL); |
| 311 | t &= ~(RT3352_RSTCTRL_UHST | RT3352_RSTCTRL_UDEV); |
| 312 | rt305x_sysc_wr(t, RT3352_SYSC_REG_RSTCTRL); |
| 313 | mdelay(500); |
| 314 | |
| 315 | /* enable host mode */ |
| 316 | t = rt305x_sysc_rr(RT3352_SYSC_REG_SYSCFG1); |
| 317 | t |= RT3352_SYSCFG1_USB0_HOST_MODE; |
| 318 | rt305x_sysc_wr(t, RT3352_SYSC_REG_SYSCFG1); |
| 319 | |
| 320 | t = rt305x_sysc_rr(RT3352_SYSC_REG_USB_PS); |
| 321 | } |
| 322 | |
| 323 | static void rt3352_usb_host_stop(void) |
| 324 | { |
| 325 | u32 t; |
| 326 | |
| 327 | if (atomic_dec_return(&rt3352_usb_use_count) != 0) |
| 328 | return; |
| 329 | |
| 330 | /* put USBHOST and USBDEV into reset */ |
| 331 | t = rt305x_sysc_rr(RT3352_SYSC_REG_RSTCTRL); |
| 332 | t |= RT3352_RSTCTRL_UHST | RT3352_RSTCTRL_UDEV; |
| 333 | rt305x_sysc_wr(t, RT3352_SYSC_REG_RSTCTRL); |
| 334 | udelay(10000); |
| 335 | |
| 336 | /* disable clock for port0's and port1's phys*/ |
| 337 | t = rt305x_sysc_rr(RT3352_SYSC_REG_CLKCFG1); |
| 338 | t &= ~(RT3352_CLKCFG1_UPHY0_CLK_EN | RT3352_CLKCFG1_UPHY1_CLK_EN); |
| 339 | rt305x_sysc_wr(t, RT3352_SYSC_REG_CLKCFG1); |
| 340 | udelay(10000); |
| 341 | } |
| 342 | |
| 343 | static struct rt3883_ehci_platform_data rt3352_ehci_data = { |
| 344 | .start_hw = rt3352_usb_host_start, |
| 345 | .stop_hw = rt3352_usb_host_stop, |
| 346 | }; |
| 347 | |
| 348 | static struct resource rt3352_ehci_resources[] = { |
| 349 | { |
| 350 | .start = RT3352_EHCI_BASE, |
| 351 | .end = RT3352_EHCI_BASE + RT3352_EHCI_SIZE - 1, |
| 352 | .flags = IORESOURCE_MEM, |
| 353 | }, { |
| 354 | .start = RT305X_INTC_IRQ_OTG, |
| 355 | .end = RT305X_INTC_IRQ_OTG, |
| 356 | .flags = IORESOURCE_IRQ, |
| 357 | }, |
| 358 | }; |
| 359 | |
| 360 | static u64 rt3352_ehci_dmamask = DMA_BIT_MASK(32); |
| 361 | static struct platform_device rt3352_ehci_device = { |
| 362 | .name = "rt3883-ehci", |
| 363 | .id = -1, |
| 364 | .resource = rt3352_ehci_resources, |
| 365 | .num_resources = ARRAY_SIZE(rt3352_ehci_resources), |
| 366 | .dev = { |
| 367 | .dma_mask = &rt3352_ehci_dmamask, |
| 368 | .coherent_dma_mask = DMA_BIT_MASK(32), |
| 369 | .platform_data = &rt3352_ehci_data, |
| 370 | }, |
| 371 | }; |
| 372 | |
| 373 | static struct resource rt3352_ohci_resources[] = { |
| 374 | { |
| 375 | .start = RT3352_OHCI_BASE, |
| 376 | .end = RT3352_OHCI_BASE + RT3352_OHCI_SIZE - 1, |
| 377 | .flags = IORESOURCE_MEM, |
| 378 | }, { |
| 379 | .start = RT305X_INTC_IRQ_OTG, |
| 380 | .end = RT305X_INTC_IRQ_OTG, |
| 381 | .flags = IORESOURCE_IRQ, |
| 382 | }, |
| 383 | }; |
| 384 | |
| 385 | static struct rt3883_ohci_platform_data rt3352_ohci_data = { |
| 386 | .start_hw = rt3352_usb_host_start, |
| 387 | .stop_hw = rt3352_usb_host_stop, |
| 388 | }; |
| 389 | |
| 390 | static u64 rt3352_ohci_dmamask = DMA_BIT_MASK(32); |
| 391 | static struct platform_device rt3352_ohci_device = { |
| 392 | .name = "rt3883-ohci", |
| 393 | .id = -1, |
| 394 | .resource = rt3352_ohci_resources, |
| 395 | .num_resources = ARRAY_SIZE(rt3352_ohci_resources), |
| 396 | .dev = { |
| 397 | .dma_mask = &rt3352_ohci_dmamask, |
| 398 | .coherent_dma_mask = DMA_BIT_MASK(32), |
| 399 | .platform_data = &rt3352_ohci_data, |
| 400 | }, |
| 401 | }; |
| 402 | |
| 403 | void __init rt305x_register_usb(void) |
| 404 | { |
| 405 | if (soc_is_rt305x() || soc_is_rt3350()) { |
| 406 | platform_device_register(&rt305x_dwc_otg_device); |
| 407 | } else if (soc_is_rt3352() || soc_is_rt5350()) { |
| 408 | platform_device_register(&rt3352_ehci_device); |
| 409 | platform_device_register(&rt3352_ohci_device); |
| 410 | } else { |
| 411 | BUG(); |
| 412 | } |
| 413 | } |
| 414 | |
