arch/mips/alchemy/common/platform.c

   1 /*
   2  * Platform device support for Au1x00 SoCs.
   3  *
   4  * Copyright 2004, Matt Porter <mporter@kernel.crashing.org>
   5  *
   6  * (C) Copyright Embedded Alley Solutions, Inc 2005
   7  * Author: Pantelis Antoniou <pantelis@embeddedalley.com>
   8  *
   9  * This file is licensed under the terms of the GNU General Public
  10  * License version 2.  This program is licensed "as is" without any
  11  * warranty of any kind, whether express or implied.
  12  */
  13
  14 #include <linux/dma-mapping.h>
  15 #include <linux/platform_device.h>
  16 #include <linux/serial_8250.h>
  17 #include <linux/init.h>
  18
  19 #include <asm/mach-au1x00/au1xxx.h>
  20 #include <asm/mach-au1x00/au1xxx_dbdma.h>
  21 #include <asm/mach-au1x00/au1100_mmc.h>
  22 #include <asm/mach-au1x00/au1xxx_eth.h>
  23
  24 #define PORT(_base, _irq)                                       \
  25         {                                                       \
  26                 .mapbase        = _base,                        \
  27                 .irq            = _irq,                         \
  28                 .regshift       = 2,                            \
  29                 .iotype         = UPIO_AU,                      \
  30                 .flags          = UPF_SKIP_TEST | UPF_IOREMAP | \
  31                                   UPF_FIXED_TYPE,               \
  32                 .type           = PORT_16550A,                  \
  33         }
  34
  35 static struct plat_serial8250_port au1x00_uart_data[] = {
  36 #if defined(CONFIG_SERIAL_8250_AU1X00)
  37 #if defined(CONFIG_SOC_AU1000)
  38         PORT(UART0_PHYS_ADDR, AU1000_UART0_INT),
  39         PORT(UART1_PHYS_ADDR, AU1000_UART1_INT),
  40         PORT(UART2_PHYS_ADDR, AU1000_UART2_INT),
  41         PORT(UART3_PHYS_ADDR, AU1000_UART3_INT),
  42 #elif defined(CONFIG_SOC_AU1500)
  43         PORT(UART0_PHYS_ADDR, AU1500_UART0_INT),
  44         PORT(UART3_PHYS_ADDR, AU1500_UART3_INT),
  45 #elif defined(CONFIG_SOC_AU1100)
  46         PORT(UART0_PHYS_ADDR, AU1100_UART0_INT),
  47         PORT(UART1_PHYS_ADDR, AU1100_UART1_INT),
  48         PORT(UART3_PHYS_ADDR, AU1100_UART3_INT),
  49 #elif defined(CONFIG_SOC_AU1550)
  50         PORT(UART0_PHYS_ADDR, AU1550_UART0_INT),
  51         PORT(UART1_PHYS_ADDR, AU1550_UART1_INT),
  52         PORT(UART3_PHYS_ADDR, AU1550_UART3_INT),
  53 #elif defined(CONFIG_SOC_AU1200)
  54         PORT(UART0_PHYS_ADDR, AU1200_UART0_INT),
  55         PORT(UART1_PHYS_ADDR, AU1200_UART1_INT),
  56 #endif
  57 #endif  /* CONFIG_SERIAL_8250_AU1X00 */
  58         { },
  59 };
  60
  61 static struct platform_device au1xx0_uart_device = {
  62         .name                   = "serial8250",
  63         .id                     = PLAT8250_DEV_AU1X00,
  64         .dev                    = {
  65                 .platform_data  = au1x00_uart_data,
  66         },
  67 };
  68
  69 /* OHCI (USB full speed host controller) */
  70 static struct resource au1xxx_usb_ohci_resources[] = {
  71         [0] = {
  72                 .start          = USB_OHCI_BASE,
  73                 .end            = USB_OHCI_BASE + USB_OHCI_LEN - 1,
  74                 .flags          = IORESOURCE_MEM,
  75         },
  76         [1] = {
  77                 .start          = FOR_PLATFORM_C_USB_HOST_INT,
  78                 .end            = FOR_PLATFORM_C_USB_HOST_INT,
  79                 .flags          = IORESOURCE_IRQ,
  80         },
  81 };
  82
  83 /* The dmamask must be set for OHCI to work */
  84 static u64 ohci_dmamask = DMA_BIT_MASK(32);
  85
  86 static struct platform_device au1xxx_usb_ohci_device = {
  87         .name           = "au1xxx-ohci",
  88         .id             = 0,
  89         .dev = {
  90                 .dma_mask               = &ohci_dmamask,
  91                 .coherent_dma_mask      = DMA_BIT_MASK(32),
  92         },
  93         .num_resources  = ARRAY_SIZE(au1xxx_usb_ohci_resources),
  94         .resource       = au1xxx_usb_ohci_resources,
  95 };
  96
  97 /*** AU1100 LCD controller ***/
  98
  99 #ifdef CONFIG_FB_AU1100
 100 static struct resource au1100_lcd_resources[] = {
 101         [0] = {
 102                 .start          = LCD_PHYS_ADDR,
 103                 .end            = LCD_PHYS_ADDR + 0x800 - 1,
 104                 .flags          = IORESOURCE_MEM,
 105         },
 106         [1] = {
 107                 .start          = AU1100_LCD_INT,
 108                 .end            = AU1100_LCD_INT,
 109                 .flags          = IORESOURCE_IRQ,
 110         }
 111 };
 112
 113 static u64 au1100_lcd_dmamask = DMA_BIT_MASK(32);
 114
 115 static struct platform_device au1100_lcd_device = {
 116         .name           = "au1100-lcd",
 117         .id             = 0,
 118         .dev = {
 119                 .dma_mask               = &au1100_lcd_dmamask,
 120                 .coherent_dma_mask      = DMA_BIT_MASK(32),
 121         },
 122         .num_resources  = ARRAY_SIZE(au1100_lcd_resources),
 123         .resource       = au1100_lcd_resources,
 124 };
 125 #endif
 126
 127 #ifdef CONFIG_SOC_AU1200
 128 /* EHCI (USB high speed host controller) */
 129 static struct resource au1xxx_usb_ehci_resources[] = {
 130         [0] = {
 131                 .start          = USB_EHCI_BASE,
 132                 .end            = USB_EHCI_BASE + USB_EHCI_LEN - 1,
 133                 .flags          = IORESOURCE_MEM,
 134         },
 135         [1] = {
 136                 .start          = AU1200_USB_INT,
 137                 .end            = AU1200_USB_INT,
 138                 .flags          = IORESOURCE_IRQ,
 139         },
 140 };
 141
 142 static u64 ehci_dmamask = DMA_BIT_MASK(32);
 143
 144 static struct platform_device au1xxx_usb_ehci_device = {
 145         .name           = "au1xxx-ehci",
 146         .id             = 0,
 147         .dev = {
 148                 .dma_mask               = &ehci_dmamask,
 149                 .coherent_dma_mask      = DMA_BIT_MASK(32),
 150         },
 151         .num_resources  = ARRAY_SIZE(au1xxx_usb_ehci_resources),
 152         .resource       = au1xxx_usb_ehci_resources,
 153 };
 154
 155 /* Au1200 UDC (USB gadget controller) */
 156 static struct resource au1xxx_usb_gdt_resources[] = {
 157         [0] = {
 158                 .start          = USB_UDC_BASE,
 159                 .end            = USB_UDC_BASE + USB_UDC_LEN - 1,
 160                 .flags          = IORESOURCE_MEM,
 161         },
 162         [1] = {
 163                 .start          = AU1200_USB_INT,
 164                 .end            = AU1200_USB_INT,
 165                 .flags          = IORESOURCE_IRQ,
 166         },
 167 };
 168
 169 static u64 udc_dmamask = DMA_BIT_MASK(32);
 170
 171 static struct platform_device au1xxx_usb_gdt_device = {
 172         .name           = "au1xxx-udc",
 173         .id             = 0,
 174         .dev = {
 175                 .dma_mask               = &udc_dmamask,
 176                 .coherent_dma_mask      = DMA_BIT_MASK(32),
 177         },
 178         .num_resources  = ARRAY_SIZE(au1xxx_usb_gdt_resources),
 179         .resource       = au1xxx_usb_gdt_resources,
 180 };
 181
 182 /* Au1200 UOC (USB OTG controller) */
 183 static struct resource au1xxx_usb_otg_resources[] = {
 184         [0] = {
 185                 .start          = USB_UOC_BASE,
 186                 .end            = USB_UOC_BASE + USB_UOC_LEN - 1,
 187                 .flags          = IORESOURCE_MEM,
 188         },
 189         [1] = {
 190                 .start          = AU1200_USB_INT,
 191                 .end            = AU1200_USB_INT,
 192                 .flags          = IORESOURCE_IRQ,
 193         },
 194 };
 195
 196 static u64 uoc_dmamask = DMA_BIT_MASK(32);
 197
 198 static struct platform_device au1xxx_usb_otg_device = {
 199         .name           = "au1xxx-uoc",
 200         .id             = 0,
 201         .dev = {
 202                 .dma_mask               = &uoc_dmamask,
 203                 .coherent_dma_mask      = DMA_BIT_MASK(32),
 204         },
 205         .num_resources  = ARRAY_SIZE(au1xxx_usb_otg_resources),
 206         .resource       = au1xxx_usb_otg_resources,
 207 };
 208
 209 static struct resource au1200_lcd_resources[] = {
 210         [0] = {
 211                 .start          = LCD_PHYS_ADDR,
 212                 .end            = LCD_PHYS_ADDR + 0x800 - 1,
 213                 .flags          = IORESOURCE_MEM,
 214         },
 215         [1] = {
 216                 .start          = AU1200_LCD_INT,
 217                 .end            = AU1200_LCD_INT,
 218                 .flags          = IORESOURCE_IRQ,
 219         }
 220 };
 221
 222 static u64 au1200_lcd_dmamask = DMA_BIT_MASK(32);
 223
 224 static struct platform_device au1200_lcd_device = {
 225         .name           = "au1200-lcd",
 226         .id             = 0,
 227         .dev = {
 228                 .dma_mask               = &au1200_lcd_dmamask,
 229                 .coherent_dma_mask      = DMA_BIT_MASK(32),
 230         },
 231         .num_resources  = ARRAY_SIZE(au1200_lcd_resources),
 232         .resource       = au1200_lcd_resources,
 233 };
 234
 235 static u64 au1xxx_mmc_dmamask =  DMA_BIT_MASK(32);
 236
 237 extern struct au1xmmc_platform_data au1xmmc_platdata[2];
 238
 239 static struct resource au1200_mmc0_resources[] = {
 240         [0] = {
 241                 .start          = SD0_PHYS_ADDR,
 242                 .end            = SD0_PHYS_ADDR + 0x7ffff,
 243                 .flags          = IORESOURCE_MEM,
 244         },
 245         [1] = {
 246                 .start          = AU1200_SD_INT,
 247                 .end            = AU1200_SD_INT,
 248                 .flags          = IORESOURCE_IRQ,
 249         },
 250         [2] = {
 251                 .start          = DSCR_CMD0_SDMS_TX0,
 252                 .end            = DSCR_CMD0_SDMS_TX0,
 253                 .flags          = IORESOURCE_DMA,
 254         },
 255         [3] = {
 256                 .start          = DSCR_CMD0_SDMS_RX0,
 257                 .end            = DSCR_CMD0_SDMS_RX0,
 258                 .flags          = IORESOURCE_DMA,
 259         }
 260 };
 261
 262 static struct platform_device au1200_mmc0_device = {
 263         .name = "au1xxx-mmc",
 264         .id = 0,
 265         .dev = {
 266                 .dma_mask               = &au1xxx_mmc_dmamask,
 267                 .coherent_dma_mask      = DMA_BIT_MASK(32),
 268                 .platform_data          = &au1xmmc_platdata[0],
 269         },
 270         .num_resources  = ARRAY_SIZE(au1200_mmc0_resources),
 271         .resource       = au1200_mmc0_resources,
 272 };
 273
 274 #ifndef CONFIG_MIPS_DB1200
 275 static struct resource au1200_mmc1_resources[] = {
 276         [0] = {
 277                 .start          = SD1_PHYS_ADDR,
 278                 .end            = SD1_PHYS_ADDR + 0x7ffff,
 279                 .flags          = IORESOURCE_MEM,
 280         },
 281         [1] = {
 282                 .start          = AU1200_SD_INT,
 283                 .end            = AU1200_SD_INT,
 284                 .flags          = IORESOURCE_IRQ,
 285         },
 286         [2] = {
 287                 .start          = DSCR_CMD0_SDMS_TX1,
 288                 .end            = DSCR_CMD0_SDMS_TX1,
 289                 .flags          = IORESOURCE_DMA,
 290         },
 291         [3] = {
 292                 .start          = DSCR_CMD0_SDMS_RX1,
 293                 .end            = DSCR_CMD0_SDMS_RX1,
 294                 .flags          = IORESOURCE_DMA,
 295         }
 296 };
 297
 298 static struct platform_device au1200_mmc1_device = {
 299         .name = "au1xxx-mmc",
 300         .id = 1,
 301         .dev = {
 302                 .dma_mask               = &au1xxx_mmc_dmamask,
 303                 .coherent_dma_mask      = DMA_BIT_MASK(32),
 304                 .platform_data          = &au1xmmc_platdata[1],
 305         },
 306         .num_resources  = ARRAY_SIZE(au1200_mmc1_resources),
 307         .resource       = au1200_mmc1_resources,
 308 };
 309 #endif /* #ifndef CONFIG_MIPS_DB1200 */
 310 #endif /* #ifdef CONFIG_SOC_AU1200 */
 311
 312 /* All Alchemy demoboards with I2C have this #define in their headers */
 313 #ifdef SMBUS_PSC_BASE
 314 static struct resource pbdb_smbus_resources[] = {
 315         {
 316                 .start  = CPHYSADDR(SMBUS_PSC_BASE),
 317                 .end    = CPHYSADDR(SMBUS_PSC_BASE + 0xfffff),
 318                 .flags  = IORESOURCE_MEM,
 319         },
 320 };
 321
 322 static struct platform_device pbdb_smbus_device = {
 323         .name           = "au1xpsc_smbus",
 324         .id             = 0,    /* bus number */
 325         .num_resources  = ARRAY_SIZE(pbdb_smbus_resources),
 326         .resource       = pbdb_smbus_resources,
 327 };
 328 #endif
 329
 330 /* Macro to help defining the Ethernet MAC resources */
 331 #define MAC_RES(_base, _enable, _irq)                   \
 332         {                                               \
 333                 .start  = CPHYSADDR(_base),             \
 334                 .end    = CPHYSADDR(_base + 0xffff),    \
 335                 .flags  = IORESOURCE_MEM,               \
 336         },                                              \
 337         {                                               \
 338                 .start  = CPHYSADDR(_enable),           \
 339                 .end    = CPHYSADDR(_enable + 0x3),     \
 340                 .flags  = IORESOURCE_MEM,               \
 341         },                                              \
 342         {                                               \
 343                 .start  = _irq,                         \
 344                 .end    = _irq,                         \
 345                 .flags  = IORESOURCE_IRQ                \
 346         }
 347
 348 static struct resource au1xxx_eth0_resources[] = {
 349 #if defined(CONFIG_SOC_AU1000)
 350         MAC_RES(AU1000_ETH0_BASE, AU1000_MAC0_ENABLE, AU1000_MAC0_DMA_INT),
 351 #elif defined(CONFIG_SOC_AU1100)
 352         MAC_RES(AU1100_ETH0_BASE, AU1100_MAC0_ENABLE, AU1100_MAC0_DMA_INT),
 353 #elif defined(CONFIG_SOC_AU1550)
 354         MAC_RES(AU1550_ETH0_BASE, AU1550_MAC0_ENABLE, AU1550_MAC0_DMA_INT),
 355 #elif defined(CONFIG_SOC_AU1500)
 356         MAC_RES(AU1500_ETH0_BASE, AU1500_MAC0_ENABLE, AU1500_MAC0_DMA_INT),
 357 #endif
 358 };
 359
 360
 361 static struct au1000_eth_platform_data au1xxx_eth0_platform_data = {
 362         .phy1_search_mac0 = 1,
 363 };
 364
 365 static struct platform_device au1xxx_eth0_device = {
 366         .name           = "au1000-eth",
 367         .id             = 0,
 368         .num_resources  = ARRAY_SIZE(au1xxx_eth0_resources),
 369         .resource       = au1xxx_eth0_resources,
 370         .dev.platform_data = &au1xxx_eth0_platform_data,
 371 };
 372
 373 #ifndef CONFIG_SOC_AU1100
 374 static struct resource au1xxx_eth1_resources[] = {
 375 #if defined(CONFIG_SOC_AU1000)
 376         MAC_RES(AU1000_ETH1_BASE, AU1000_MAC1_ENABLE, AU1000_MAC1_DMA_INT),
 377 #elif defined(CONFIG_SOC_AU1550)
 378         MAC_RES(AU1550_ETH1_BASE, AU1550_MAC1_ENABLE, AU1550_MAC1_DMA_INT),
 379 #elif defined(CONFIG_SOC_AU1500)
 380         MAC_RES(AU1500_ETH1_BASE, AU1500_MAC1_ENABLE, AU1500_MAC1_DMA_INT),
 381 #endif
 382 };
 383
 384 static struct au1000_eth_platform_data au1xxx_eth1_platform_data = {
 385         .phy1_search_mac0 = 1,
 386 };
 387
 388 static struct platform_device au1xxx_eth1_device = {
 389         .name           = "au1000-eth",
 390         .id             = 1,
 391         .num_resources  = ARRAY_SIZE(au1xxx_eth1_resources),
 392         .resource       = au1xxx_eth1_resources,
 393         .dev.platform_data = &au1xxx_eth1_platform_data,
 394 };
 395 #endif
 396
 397 void __init au1xxx_override_eth_cfg(unsigned int port,
 398                         struct au1000_eth_platform_data *eth_data)
 399 {
 400         if (!eth_data || port > 1)
 401                 return;
 402
 403         if (port == 0)
 404                 memcpy(&au1xxx_eth0_platform_data, eth_data,
 405                         sizeof(struct au1000_eth_platform_data));
 406 #ifndef CONFIG_SOC_AU1100
 407         else
 408                 memcpy(&au1xxx_eth1_platform_data, eth_data,
 409                         sizeof(struct au1000_eth_platform_data));
 410 #endif
 411 }
 412
 413 static struct platform_device *au1xxx_platform_devices[] __initdata = {
 414         &au1xx0_uart_device,
 415         &au1xxx_usb_ohci_device,
 416 #ifdef CONFIG_FB_AU1100
 417         &au1100_lcd_device,
 418 #endif
 419 #ifdef CONFIG_SOC_AU1200
 420         &au1xxx_usb_ehci_device,
 421         &au1xxx_usb_gdt_device,
 422         &au1xxx_usb_otg_device,
 423         &au1200_lcd_device,
 424         &au1200_mmc0_device,
 425 #ifndef CONFIG_MIPS_DB1200
 426         &au1200_mmc1_device,
 427 #endif
 428 #endif
 429 #ifdef SMBUS_PSC_BASE
 430         &pbdb_smbus_device,
 431 #endif
 432         &au1xxx_eth0_device,
 433 };
 434
 435 static int __init au1xxx_platform_init(void)
 436 {
 437         unsigned int uartclk = get_au1x00_uart_baud_base() * 16;
 438         int i;
 439
 440         /* Fill up uartclk. */
 441         for (i = 0; au1x00_uart_data[i].flags; i++)
 442                 au1x00_uart_data[i].uartclk = uartclk;
 443
 444 #ifndef CONFIG_SOC_AU1100
 445         /* Register second MAC if enabled in pinfunc */
 446         if (!(au_readl(SYS_PINFUNC) & (u32)SYS_PF_NI2))
 447                 platform_device_register(&au1xxx_eth1_device);
 448 #endif
 449
 450         return platform_add_devices(au1xxx_platform_devices,
 451                                     ARRAY_SIZE(au1xxx_platform_devices));
 452 }
 453
 454 arch_initcall(au1xxx_platform_init);