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/etherdevice.h>
  16 #include <linux/platform_device.h>
  17 #include <linux/serial_8250.h>
  18 #include <linux/init.h>
  19
  20 #include <asm/mach-au1x00/au1xxx.h>
  21 #include <asm/mach-au1x00/au1xxx_dbdma.h>
  22 #include <asm/mach-au1x00/au1100_mmc.h>
  23 #include <asm/mach-au1x00/au1xxx_eth.h>
  24
  25 #include <prom.h>
  26
  27 #define PORT(_base, _irq)                                       \
  28         {                                                       \
  29                 .mapbase        = _base,                        \
  30                 .irq            = _irq,                         \
  31                 .regshift       = 2,                            \
  32                 .iotype         = UPIO_AU,                      \
  33                 .flags          = UPF_SKIP_TEST | UPF_IOREMAP | \
  34                                   UPF_FIXED_TYPE,               \
  35                 .type           = PORT_16550A,                  \
  36         }
  37
  38 static struct plat_serial8250_port au1x00_uart_data[] = {
  39 #if defined(CONFIG_SOC_AU1000)
  40         PORT(UART0_PHYS_ADDR, AU1000_UART0_INT),
  41         PORT(UART1_PHYS_ADDR, AU1000_UART1_INT),
  42         PORT(UART2_PHYS_ADDR, AU1000_UART2_INT),
  43         PORT(UART3_PHYS_ADDR, AU1000_UART3_INT),
  44 #elif defined(CONFIG_SOC_AU1500)
  45         PORT(UART0_PHYS_ADDR, AU1500_UART0_INT),
  46         PORT(UART3_PHYS_ADDR, AU1500_UART3_INT),
  47 #elif defined(CONFIG_SOC_AU1100)
  48         PORT(UART0_PHYS_ADDR, AU1100_UART0_INT),
  49         PORT(UART1_PHYS_ADDR, AU1100_UART1_INT),
  50         PORT(UART3_PHYS_ADDR, AU1100_UART3_INT),
  51 #elif defined(CONFIG_SOC_AU1550)
  52         PORT(UART0_PHYS_ADDR, AU1550_UART0_INT),
  53         PORT(UART1_PHYS_ADDR, AU1550_UART1_INT),
  54         PORT(UART3_PHYS_ADDR, AU1550_UART3_INT),
  55 #elif defined(CONFIG_SOC_AU1200)
  56         PORT(UART0_PHYS_ADDR, AU1200_UART0_INT),
  57         PORT(UART1_PHYS_ADDR, AU1200_UART1_INT),
  58 #endif
  59         { },
  60 };
  61
  62 static struct platform_device au1xx0_uart_device = {
  63         .name                   = "serial8250",
  64         .id                     = PLAT8250_DEV_AU1X00,
  65         .dev                    = {
  66                 .platform_data  = au1x00_uart_data,
  67         },
  68 };
  69
  70 /* OHCI (USB full speed host controller) */
  71 static struct resource au1xxx_usb_ohci_resources[] = {
  72         [0] = {
  73                 .start          = USB_OHCI_BASE,
  74                 .end            = USB_OHCI_BASE + USB_OHCI_LEN - 1,
  75                 .flags          = IORESOURCE_MEM,
  76         },
  77         [1] = {
  78                 .start          = FOR_PLATFORM_C_USB_HOST_INT,
  79                 .end            = FOR_PLATFORM_C_USB_HOST_INT,
  80                 .flags          = IORESOURCE_IRQ,
  81         },
  82 };
  83
  84 /* The dmamask must be set for OHCI to work */
  85 static u64 ohci_dmamask = DMA_BIT_MASK(32);
  86
  87 static struct platform_device au1xxx_usb_ohci_device = {
  88         .name           = "au1xxx-ohci",
  89         .id             = 0,
  90         .dev = {
  91                 .dma_mask               = &ohci_dmamask,
  92                 .coherent_dma_mask      = DMA_BIT_MASK(32),
  93         },
  94         .num_resources  = ARRAY_SIZE(au1xxx_usb_ohci_resources),
  95         .resource       = au1xxx_usb_ohci_resources,
  96 };
  97
  98 /*** AU1100 LCD controller ***/
  99
 100 #ifdef CONFIG_FB_AU1100
 101 static struct resource au1100_lcd_resources[] = {
 102         [0] = {
 103                 .start          = LCD_PHYS_ADDR,
 104                 .end            = LCD_PHYS_ADDR + 0x800 - 1,
 105                 .flags          = IORESOURCE_MEM,
 106         },
 107         [1] = {
 108                 .start          = AU1100_LCD_INT,
 109                 .end            = AU1100_LCD_INT,
 110                 .flags          = IORESOURCE_IRQ,
 111         }
 112 };
 113
 114 static u64 au1100_lcd_dmamask = DMA_BIT_MASK(32);
 115
 116 static struct platform_device au1100_lcd_device = {
 117         .name           = "au1100-lcd",
 118         .id             = 0,
 119         .dev = {
 120                 .dma_mask               = &au1100_lcd_dmamask,
 121                 .coherent_dma_mask      = DMA_BIT_MASK(32),
 122         },
 123         .num_resources  = ARRAY_SIZE(au1100_lcd_resources),
 124         .resource       = au1100_lcd_resources,
 125 };
 126 #endif
 127
 128 #ifdef CONFIG_SOC_AU1200
 129 /* EHCI (USB high speed host controller) */
 130 static struct resource au1xxx_usb_ehci_resources[] = {
 131         [0] = {
 132                 .start          = USB_EHCI_BASE,
 133                 .end            = USB_EHCI_BASE + USB_EHCI_LEN - 1,
 134                 .flags          = IORESOURCE_MEM,
 135         },
 136         [1] = {
 137                 .start          = AU1200_USB_INT,
 138                 .end            = AU1200_USB_INT,
 139                 .flags          = IORESOURCE_IRQ,
 140         },
 141 };
 142
 143 static u64 ehci_dmamask = DMA_BIT_MASK(32);
 144
 145 static struct platform_device au1xxx_usb_ehci_device = {
 146         .name           = "au1xxx-ehci",
 147         .id             = 0,
 148         .dev = {
 149                 .dma_mask               = &ehci_dmamask,
 150                 .coherent_dma_mask      = DMA_BIT_MASK(32),
 151         },
 152         .num_resources  = ARRAY_SIZE(au1xxx_usb_ehci_resources),
 153         .resource       = au1xxx_usb_ehci_resources,
 154 };
 155
 156 /* Au1200 UDC (USB gadget controller) */
 157 static struct resource au1xxx_usb_gdt_resources[] = {
 158         [0] = {
 159                 .start          = USB_UDC_BASE,
 160                 .end            = USB_UDC_BASE + USB_UDC_LEN - 1,
 161                 .flags          = IORESOURCE_MEM,
 162         },
 163         [1] = {
 164                 .start          = AU1200_USB_INT,
 165                 .end            = AU1200_USB_INT,
 166                 .flags          = IORESOURCE_IRQ,
 167         },
 168 };
 169
 170 static u64 udc_dmamask = DMA_BIT_MASK(32);
 171
 172 static struct platform_device au1xxx_usb_gdt_device = {
 173         .name           = "au1xxx-udc",
 174         .id             = 0,
 175         .dev = {
 176                 .dma_mask               = &udc_dmamask,
 177                 .coherent_dma_mask      = DMA_BIT_MASK(32),
 178         },
 179         .num_resources  = ARRAY_SIZE(au1xxx_usb_gdt_resources),
 180         .resource       = au1xxx_usb_gdt_resources,
 181 };
 182
 183 /* Au1200 UOC (USB OTG controller) */
 184 static struct resource au1xxx_usb_otg_resources[] = {
 185         [0] = {
 186                 .start          = USB_UOC_BASE,
 187                 .end            = USB_UOC_BASE + USB_UOC_LEN - 1,
 188                 .flags          = IORESOURCE_MEM,
 189         },
 190         [1] = {
 191                 .start          = AU1200_USB_INT,
 192                 .end            = AU1200_USB_INT,
 193                 .flags          = IORESOURCE_IRQ,
 194         },
 195 };
 196
 197 static u64 uoc_dmamask = DMA_BIT_MASK(32);
 198
 199 static struct platform_device au1xxx_usb_otg_device = {
 200         .name           = "au1xxx-uoc",
 201         .id             = 0,
 202         .dev = {
 203                 .dma_mask               = &uoc_dmamask,
 204                 .coherent_dma_mask      = DMA_BIT_MASK(32),
 205         },
 206         .num_resources  = ARRAY_SIZE(au1xxx_usb_otg_resources),
 207         .resource       = au1xxx_usb_otg_resources,
 208 };
 209
 210 static struct resource au1200_lcd_resources[] = {
 211         [0] = {
 212                 .start          = LCD_PHYS_ADDR,
 213                 .end            = LCD_PHYS_ADDR + 0x800 - 1,
 214                 .flags          = IORESOURCE_MEM,
 215         },
 216         [1] = {
 217                 .start          = AU1200_LCD_INT,
 218                 .end            = AU1200_LCD_INT,
 219                 .flags          = IORESOURCE_IRQ,
 220         }
 221 };
 222
 223 static u64 au1200_lcd_dmamask = DMA_BIT_MASK(32);
 224
 225 static struct platform_device au1200_lcd_device = {
 226         .name           = "au1200-lcd",
 227         .id             = 0,
 228         .dev = {
 229                 .dma_mask               = &au1200_lcd_dmamask,
 230                 .coherent_dma_mask      = DMA_BIT_MASK(32),
 231         },
 232         .num_resources  = ARRAY_SIZE(au1200_lcd_resources),
 233         .resource       = au1200_lcd_resources,
 234 };
 235
 236 static u64 au1xxx_mmc_dmamask =  DMA_BIT_MASK(32);
 237
 238 extern struct au1xmmc_platform_data au1xmmc_platdata[2];
 239
 240 static struct resource au1200_mmc0_resources[] = {
 241         [0] = {
 242                 .start          = SD0_PHYS_ADDR,
 243                 .end            = SD0_PHYS_ADDR + 0x7ffff,
 244                 .flags          = IORESOURCE_MEM,
 245         },
 246         [1] = {
 247                 .start          = AU1200_SD_INT,
 248                 .end            = AU1200_SD_INT,
 249                 .flags          = IORESOURCE_IRQ,
 250         },
 251         [2] = {
 252                 .start          = DSCR_CMD0_SDMS_TX0,
 253                 .end            = DSCR_CMD0_SDMS_TX0,
 254                 .flags          = IORESOURCE_DMA,
 255         },
 256         [3] = {
 257                 .start          = DSCR_CMD0_SDMS_RX0,
 258                 .end            = DSCR_CMD0_SDMS_RX0,
 259                 .flags          = IORESOURCE_DMA,
 260         }
 261 };
 262
 263 static struct platform_device au1200_mmc0_device = {
 264         .name = "au1xxx-mmc",
 265         .id = 0,
 266         .dev = {
 267                 .dma_mask               = &au1xxx_mmc_dmamask,
 268                 .coherent_dma_mask      = DMA_BIT_MASK(32),
 269                 .platform_data          = &au1xmmc_platdata[0],
 270         },
 271         .num_resources  = ARRAY_SIZE(au1200_mmc0_resources),
 272         .resource       = au1200_mmc0_resources,
 273 };
 274
 275 #ifndef CONFIG_MIPS_DB1200
 276 static struct resource au1200_mmc1_resources[] = {
 277         [0] = {
 278                 .start          = SD1_PHYS_ADDR,
 279                 .end            = SD1_PHYS_ADDR + 0x7ffff,
 280                 .flags          = IORESOURCE_MEM,
 281         },
 282         [1] = {
 283                 .start          = AU1200_SD_INT,
 284                 .end            = AU1200_SD_INT,
 285                 .flags          = IORESOURCE_IRQ,
 286         },
 287         [2] = {
 288                 .start          = DSCR_CMD0_SDMS_TX1,
 289                 .end            = DSCR_CMD0_SDMS_TX1,
 290                 .flags          = IORESOURCE_DMA,
 291         },
 292         [3] = {
 293                 .start          = DSCR_CMD0_SDMS_RX1,
 294                 .end            = DSCR_CMD0_SDMS_RX1,
 295                 .flags          = IORESOURCE_DMA,
 296         }
 297 };
 298
 299 static struct platform_device au1200_mmc1_device = {
 300         .name = "au1xxx-mmc",
 301         .id = 1,
 302         .dev = {
 303                 .dma_mask               = &au1xxx_mmc_dmamask,
 304                 .coherent_dma_mask      = DMA_BIT_MASK(32),
 305                 .platform_data          = &au1xmmc_platdata[1],
 306         },
 307         .num_resources  = ARRAY_SIZE(au1200_mmc1_resources),
 308         .resource       = au1200_mmc1_resources,
 309 };
 310 #endif /* #ifndef CONFIG_MIPS_DB1200 */
 311 #endif /* #ifdef CONFIG_SOC_AU1200 */
 312
 313 /* All Alchemy demoboards with I2C have this #define in their headers */
 314 #ifdef SMBUS_PSC_BASE
 315 static struct resource pbdb_smbus_resources[] = {
 316         {
 317                 .start  = CPHYSADDR(SMBUS_PSC_BASE),
 318                 .end    = CPHYSADDR(SMBUS_PSC_BASE + 0xfffff),
 319                 .flags  = IORESOURCE_MEM,
 320         },
 321 };
 322
 323 static struct platform_device pbdb_smbus_device = {
 324         .name           = "au1xpsc_smbus",
 325         .id             = 0,    /* bus number */
 326         .num_resources  = ARRAY_SIZE(pbdb_smbus_resources),
 327         .resource       = pbdb_smbus_resources,
 328 };
 329 #endif
 330
 331 /* Macro to help defining the Ethernet MAC resources */
 332 #define MAC_RES(_base, _enable, _irq)                   \
 333         {                                               \
 334                 .start  = CPHYSADDR(_base),             \
 335                 .end    = CPHYSADDR(_base + 0xffff),    \
 336                 .flags  = IORESOURCE_MEM,               \
 337         },                                              \
 338         {                                               \
 339                 .start  = CPHYSADDR(_enable),           \
 340                 .end    = CPHYSADDR(_enable + 0x3),     \
 341                 .flags  = IORESOURCE_MEM,               \
 342         },                                              \
 343         {                                               \
 344                 .start  = _irq,                         \
 345                 .end    = _irq,                         \
 346                 .flags  = IORESOURCE_IRQ                \
 347         }
 348
 349 static struct resource au1xxx_eth0_resources[] = {
 350 #if defined(CONFIG_SOC_AU1000)
 351         MAC_RES(AU1000_ETH0_BASE, AU1000_MAC0_ENABLE, AU1000_MAC0_DMA_INT),
 352 #elif defined(CONFIG_SOC_AU1100)
 353         MAC_RES(AU1100_ETH0_BASE, AU1100_MAC0_ENABLE, AU1100_MAC0_DMA_INT),
 354 #elif defined(CONFIG_SOC_AU1550)
 355         MAC_RES(AU1550_ETH0_BASE, AU1550_MAC0_ENABLE, AU1550_MAC0_DMA_INT),
 356 #elif defined(CONFIG_SOC_AU1500)
 357         MAC_RES(AU1500_ETH0_BASE, AU1500_MAC0_ENABLE, AU1500_MAC0_DMA_INT),
 358 #endif
 359 };
 360
 361
 362 static struct au1000_eth_platform_data au1xxx_eth0_platform_data = {
 363         .phy1_search_mac0 = 1,
 364 };
 365
 366 static struct platform_device au1xxx_eth0_device = {
 367         .name           = "au1000-eth",
 368         .id             = 0,
 369         .num_resources  = ARRAY_SIZE(au1xxx_eth0_resources),
 370         .resource       = au1xxx_eth0_resources,
 371         .dev.platform_data = &au1xxx_eth0_platform_data,
 372 };
 373
 374 #ifndef CONFIG_SOC_AU1100
 375 static struct resource au1xxx_eth1_resources[] = {
 376 #if defined(CONFIG_SOC_AU1000)
 377         MAC_RES(AU1000_ETH1_BASE, AU1000_MAC1_ENABLE, AU1000_MAC1_DMA_INT),
 378 #elif defined(CONFIG_SOC_AU1550)
 379         MAC_RES(AU1550_ETH1_BASE, AU1550_MAC1_ENABLE, AU1550_MAC1_DMA_INT),
 380 #elif defined(CONFIG_SOC_AU1500)
 381         MAC_RES(AU1500_ETH1_BASE, AU1500_MAC1_ENABLE, AU1500_MAC1_DMA_INT),
 382 #endif
 383 };
 384
 385 static struct au1000_eth_platform_data au1xxx_eth1_platform_data = {
 386         .phy1_search_mac0 = 1,
 387 };
 388
 389 static struct platform_device au1xxx_eth1_device = {
 390         .name           = "au1000-eth",
 391         .id             = 1,
 392         .num_resources  = ARRAY_SIZE(au1xxx_eth1_resources),
 393         .resource       = au1xxx_eth1_resources,
 394         .dev.platform_data = &au1xxx_eth1_platform_data,
 395 };
 396 #endif
 397
 398 void __init au1xxx_override_eth_cfg(unsigned int port,
 399                         struct au1000_eth_platform_data *eth_data)
 400 {
 401         if (!eth_data || port > 1)
 402                 return;
 403
 404         if (port == 0)
 405                 memcpy(&au1xxx_eth0_platform_data, eth_data,
 406                         sizeof(struct au1000_eth_platform_data));
 407 #ifndef CONFIG_SOC_AU1100
 408         else
 409                 memcpy(&au1xxx_eth1_platform_data, eth_data,
 410                         sizeof(struct au1000_eth_platform_data));
 411 #endif
 412 }
 413
 414 static struct platform_device *au1xxx_platform_devices[] __initdata = {
 415         &au1xx0_uart_device,
 416         &au1xxx_usb_ohci_device,
 417 #ifdef CONFIG_FB_AU1100
 418         &au1100_lcd_device,
 419 #endif
 420 #ifdef CONFIG_SOC_AU1200
 421         &au1xxx_usb_ehci_device,
 422         &au1xxx_usb_gdt_device,
 423         &au1xxx_usb_otg_device,
 424         &au1200_lcd_device,
 425         &au1200_mmc0_device,
 426 #ifndef CONFIG_MIPS_DB1200
 427         &au1200_mmc1_device,
 428 #endif
 429 #endif
 430 #ifdef SMBUS_PSC_BASE
 431         &pbdb_smbus_device,
 432 #endif
 433         &au1xxx_eth0_device,
 434 };
 435
 436 static int __init au1xxx_platform_init(void)
 437 {
 438         unsigned int uartclk = get_au1x00_uart_baud_base() * 16;
 439         int err, i;
 440         unsigned char ethaddr[6];
 441
 442         /* Fill up uartclk. */
 443         for (i = 0; au1x00_uart_data[i].flags; i++)
 444                 au1x00_uart_data[i].uartclk = uartclk;
 445
 446         /* use firmware-provided mac addr if available and necessary */
 447         i = prom_get_ethernet_addr(ethaddr);
 448         if (!i && !is_valid_ether_addr(au1xxx_eth0_platform_data.mac))
 449                 memcpy(au1xxx_eth0_platform_data.mac, ethaddr, 6);
 450
 451         err = platform_add_devices(au1xxx_platform_devices,
 452                                    ARRAY_SIZE(au1xxx_platform_devices));
 453 #ifndef CONFIG_SOC_AU1100
 454         ethaddr[5] += 1;        /* next addr for 2nd MAC */
 455         if (!i && !is_valid_ether_addr(au1xxx_eth1_platform_data.mac))
 456                 memcpy(au1xxx_eth1_platform_data.mac, ethaddr, 6);
 457
 458         /* Register second MAC if enabled in pinfunc */
 459         if (!err && !(au_readl(SYS_PINFUNC) & (u32)SYS_PF_NI2))
 460                 err = platform_device_register(&au1xxx_eth1_device);
 461 #endif
 462
 463         return err;
 464 }
 465
 466 arch_initcall(au1xxx_platform_init);