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
  23 #define PORT(_base, _irq)                                       \
  24         {                                                       \
  25                 .mapbase        = _base,                        \
  26                 .irq            = _irq,                         \
  27                 .regshift       = 2,                            \
  28                 .iotype         = UPIO_AU,                      \
  29                 .flags          = UPF_SKIP_TEST | UPF_IOREMAP | \
  30                                   UPF_FIXED_TYPE,               \
  31                 .type           = PORT_16550A,                  \
  32         }
  33
  34 static struct plat_serial8250_port au1x00_uart_data[] = {
  35 #if defined(CONFIG_SERIAL_8250_AU1X00)
  36 #if defined(CONFIG_SOC_AU1000)
  37         PORT(UART0_PHYS_ADDR, AU1000_UART0_INT),
  38         PORT(UART1_PHYS_ADDR, AU1000_UART1_INT),
  39         PORT(UART2_PHYS_ADDR, AU1000_UART2_INT),
  40         PORT(UART3_PHYS_ADDR, AU1000_UART3_INT),
  41 #elif defined(CONFIG_SOC_AU1500)
  42         PORT(UART0_PHYS_ADDR, AU1500_UART0_INT),
  43         PORT(UART3_PHYS_ADDR, AU1500_UART3_INT),
  44 #elif defined(CONFIG_SOC_AU1100)
  45         PORT(UART0_PHYS_ADDR, AU1100_UART0_INT),
  46         PORT(UART1_PHYS_ADDR, AU1100_UART1_INT),
  47         PORT(UART3_PHYS_ADDR, AU1100_UART3_INT),
  48 #elif defined(CONFIG_SOC_AU1550)
  49         PORT(UART0_PHYS_ADDR, AU1550_UART0_INT),
  50         PORT(UART1_PHYS_ADDR, AU1550_UART1_INT),
  51         PORT(UART3_PHYS_ADDR, AU1550_UART3_INT),
  52 #elif defined(CONFIG_SOC_AU1200)
  53         PORT(UART0_PHYS_ADDR, AU1200_UART0_INT),
  54         PORT(UART1_PHYS_ADDR, AU1200_UART1_INT),
  55 #endif
  56 #endif  /* CONFIG_SERIAL_8250_AU1X00 */
  57         { },
  58 };
  59
  60 static struct platform_device au1xx0_uart_device = {
  61         .name                   = "serial8250",
  62         .id                     = PLAT8250_DEV_AU1X00,
  63         .dev                    = {
  64                 .platform_data  = au1x00_uart_data,
  65         },
  66 };
  67
  68 /* OHCI (USB full speed host controller) */
  69 static struct resource au1xxx_usb_ohci_resources[] = {
  70         [0] = {
  71                 .start          = USB_OHCI_BASE,
  72                 .end            = USB_OHCI_BASE + USB_OHCI_LEN - 1,
  73                 .flags          = IORESOURCE_MEM,
  74         },
  75         [1] = {
  76                 .start          = FOR_PLATFORM_C_USB_HOST_INT,
  77                 .end            = FOR_PLATFORM_C_USB_HOST_INT,
  78                 .flags          = IORESOURCE_IRQ,
  79         },
  80 };
  81
  82 /* The dmamask must be set for OHCI to work */
  83 static u64 ohci_dmamask = DMA_BIT_MASK(32);
  84
  85 static struct platform_device au1xxx_usb_ohci_device = {
  86         .name           = "au1xxx-ohci",
  87         .id             = 0,
  88         .dev = {
  89                 .dma_mask               = &ohci_dmamask,
  90                 .coherent_dma_mask      = DMA_BIT_MASK(32),
  91         },
  92         .num_resources  = ARRAY_SIZE(au1xxx_usb_ohci_resources),
  93         .resource       = au1xxx_usb_ohci_resources,
  94 };
  95
  96 /*** AU1100 LCD controller ***/
  97
  98 #ifdef CONFIG_FB_AU1100
  99 static struct resource au1100_lcd_resources[] = {
 100         [0] = {
 101                 .start          = LCD_PHYS_ADDR,
 102                 .end            = LCD_PHYS_ADDR + 0x800 - 1,
 103                 .flags          = IORESOURCE_MEM,
 104         },
 105         [1] = {
 106                 .start          = AU1100_LCD_INT,
 107                 .end            = AU1100_LCD_INT,
 108                 .flags          = IORESOURCE_IRQ,
 109         }
 110 };
 111
 112 static u64 au1100_lcd_dmamask = DMA_BIT_MASK(32);
 113
 114 static struct platform_device au1100_lcd_device = {
 115         .name           = "au1100-lcd",
 116         .id             = 0,
 117         .dev = {
 118                 .dma_mask               = &au1100_lcd_dmamask,
 119                 .coherent_dma_mask      = DMA_BIT_MASK(32),
 120         },
 121         .num_resources  = ARRAY_SIZE(au1100_lcd_resources),
 122         .resource       = au1100_lcd_resources,
 123 };
 124 #endif
 125
 126 #ifdef CONFIG_SOC_AU1200
 127 /* EHCI (USB high speed host controller) */
 128 static struct resource au1xxx_usb_ehci_resources[] = {
 129         [0] = {
 130                 .start          = USB_EHCI_BASE,
 131                 .end            = USB_EHCI_BASE + USB_EHCI_LEN - 1,
 132                 .flags          = IORESOURCE_MEM,
 133         },
 134         [1] = {
 135                 .start          = AU1200_USB_INT,
 136                 .end            = AU1200_USB_INT,
 137                 .flags          = IORESOURCE_IRQ,
 138         },
 139 };
 140
 141 static u64 ehci_dmamask = DMA_BIT_MASK(32);
 142
 143 static struct platform_device au1xxx_usb_ehci_device = {
 144         .name           = "au1xxx-ehci",
 145         .id             = 0,
 146         .dev = {
 147                 .dma_mask               = &ehci_dmamask,
 148                 .coherent_dma_mask      = DMA_BIT_MASK(32),
 149         },
 150         .num_resources  = ARRAY_SIZE(au1xxx_usb_ehci_resources),
 151         .resource       = au1xxx_usb_ehci_resources,
 152 };
 153
 154 /* Au1200 UDC (USB gadget controller) */
 155 static struct resource au1xxx_usb_gdt_resources[] = {
 156         [0] = {
 157                 .start          = USB_UDC_BASE,
 158                 .end            = USB_UDC_BASE + USB_UDC_LEN - 1,
 159                 .flags          = IORESOURCE_MEM,
 160         },
 161         [1] = {
 162                 .start          = AU1200_USB_INT,
 163                 .end            = AU1200_USB_INT,
 164                 .flags          = IORESOURCE_IRQ,
 165         },
 166 };
 167
 168 static u64 udc_dmamask = DMA_BIT_MASK(32);
 169
 170 static struct platform_device au1xxx_usb_gdt_device = {
 171         .name           = "au1xxx-udc",
 172         .id             = 0,
 173         .dev = {
 174                 .dma_mask               = &udc_dmamask,
 175                 .coherent_dma_mask      = DMA_BIT_MASK(32),
 176         },
 177         .num_resources  = ARRAY_SIZE(au1xxx_usb_gdt_resources),
 178         .resource       = au1xxx_usb_gdt_resources,
 179 };
 180
 181 /* Au1200 UOC (USB OTG controller) */
 182 static struct resource au1xxx_usb_otg_resources[] = {
 183         [0] = {
 184                 .start          = USB_UOC_BASE,
 185                 .end            = USB_UOC_BASE + USB_UOC_LEN - 1,
 186                 .flags          = IORESOURCE_MEM,
 187         },
 188         [1] = {
 189                 .start          = AU1200_USB_INT,
 190                 .end            = AU1200_USB_INT,
 191                 .flags          = IORESOURCE_IRQ,
 192         },
 193 };
 194
 195 static u64 uoc_dmamask = DMA_BIT_MASK(32);
 196
 197 static struct platform_device au1xxx_usb_otg_device = {
 198         .name           = "au1xxx-uoc",
 199         .id             = 0,
 200         .dev = {
 201                 .dma_mask               = &uoc_dmamask,
 202                 .coherent_dma_mask      = DMA_BIT_MASK(32),
 203         },
 204         .num_resources  = ARRAY_SIZE(au1xxx_usb_otg_resources),
 205         .resource       = au1xxx_usb_otg_resources,
 206 };
 207
 208 static struct resource au1200_lcd_resources[] = {
 209         [0] = {
 210                 .start          = LCD_PHYS_ADDR,
 211                 .end            = LCD_PHYS_ADDR + 0x800 - 1,
 212                 .flags          = IORESOURCE_MEM,
 213         },
 214         [1] = {
 215                 .start          = AU1200_LCD_INT,
 216                 .end            = AU1200_LCD_INT,
 217                 .flags          = IORESOURCE_IRQ,
 218         }
 219 };
 220
 221 static u64 au1200_lcd_dmamask = DMA_BIT_MASK(32);
 222
 223 static struct platform_device au1200_lcd_device = {
 224         .name           = "au1200-lcd",
 225         .id             = 0,
 226         .dev = {
 227                 .dma_mask               = &au1200_lcd_dmamask,
 228                 .coherent_dma_mask      = DMA_BIT_MASK(32),
 229         },
 230         .num_resources  = ARRAY_SIZE(au1200_lcd_resources),
 231         .resource       = au1200_lcd_resources,
 232 };
 233
 234 static u64 au1xxx_mmc_dmamask =  DMA_BIT_MASK(32);
 235
 236 extern struct au1xmmc_platform_data au1xmmc_platdata[2];
 237
 238 static struct resource au1200_mmc0_resources[] = {
 239         [0] = {
 240                 .start          = SD0_PHYS_ADDR,
 241                 .end            = SD0_PHYS_ADDR + 0x7ffff,
 242                 .flags          = IORESOURCE_MEM,
 243         },
 244         [1] = {
 245                 .start          = AU1200_SD_INT,
 246                 .end            = AU1200_SD_INT,
 247                 .flags          = IORESOURCE_IRQ,
 248         },
 249         [2] = {
 250                 .start          = DSCR_CMD0_SDMS_TX0,
 251                 .end            = DSCR_CMD0_SDMS_TX0,
 252                 .flags          = IORESOURCE_DMA,
 253         },
 254         [3] = {
 255                 .start          = DSCR_CMD0_SDMS_RX0,
 256                 .end            = DSCR_CMD0_SDMS_RX0,
 257                 .flags          = IORESOURCE_DMA,
 258         }
 259 };
 260
 261 static struct platform_device au1200_mmc0_device = {
 262         .name = "au1xxx-mmc",
 263         .id = 0,
 264         .dev = {
 265                 .dma_mask               = &au1xxx_mmc_dmamask,
 266                 .coherent_dma_mask      = DMA_BIT_MASK(32),
 267                 .platform_data          = &au1xmmc_platdata[0],
 268         },
 269         .num_resources  = ARRAY_SIZE(au1200_mmc0_resources),
 270         .resource       = au1200_mmc0_resources,
 271 };
 272
 273 #ifndef CONFIG_MIPS_DB1200
 274 static struct resource au1200_mmc1_resources[] = {
 275         [0] = {
 276                 .start          = SD1_PHYS_ADDR,
 277                 .end            = SD1_PHYS_ADDR + 0x7ffff,
 278                 .flags          = IORESOURCE_MEM,
 279         },
 280         [1] = {
 281                 .start          = AU1200_SD_INT,
 282                 .end            = AU1200_SD_INT,
 283                 .flags          = IORESOURCE_IRQ,
 284         },
 285         [2] = {
 286                 .start          = DSCR_CMD0_SDMS_TX1,
 287                 .end            = DSCR_CMD0_SDMS_TX1,
 288                 .flags          = IORESOURCE_DMA,
 289         },
 290         [3] = {
 291                 .start          = DSCR_CMD0_SDMS_RX1,
 292                 .end            = DSCR_CMD0_SDMS_RX1,
 293                 .flags          = IORESOURCE_DMA,
 294         }
 295 };
 296
 297 static struct platform_device au1200_mmc1_device = {
 298         .name = "au1xxx-mmc",
 299         .id = 1,
 300         .dev = {
 301                 .dma_mask               = &au1xxx_mmc_dmamask,
 302                 .coherent_dma_mask      = DMA_BIT_MASK(32),
 303                 .platform_data          = &au1xmmc_platdata[1],
 304         },
 305         .num_resources  = ARRAY_SIZE(au1200_mmc1_resources),
 306         .resource       = au1200_mmc1_resources,
 307 };
 308 #endif /* #ifndef CONFIG_MIPS_DB1200 */
 309 #endif /* #ifdef CONFIG_SOC_AU1200 */
 310
 311 /* All Alchemy demoboards with I2C have this #define in their headers */
 312 #ifdef SMBUS_PSC_BASE
 313 static struct resource pbdb_smbus_resources[] = {
 314         {
 315                 .start  = CPHYSADDR(SMBUS_PSC_BASE),
 316                 .end    = CPHYSADDR(SMBUS_PSC_BASE + 0xfffff),
 317                 .flags  = IORESOURCE_MEM,
 318         },
 319 };
 320
 321 static struct platform_device pbdb_smbus_device = {
 322         .name           = "au1xpsc_smbus",
 323         .id             = 0,    /* bus number */
 324         .num_resources  = ARRAY_SIZE(pbdb_smbus_resources),
 325         .resource       = pbdb_smbus_resources,
 326 };
 327 #endif
 328
 329 static struct platform_device *au1xxx_platform_devices[] __initdata = {
 330         &au1xx0_uart_device,
 331         &au1xxx_usb_ohci_device,
 332 #ifdef CONFIG_FB_AU1100
 333         &au1100_lcd_device,
 334 #endif
 335 #ifdef CONFIG_SOC_AU1200
 336         &au1xxx_usb_ehci_device,
 337         &au1xxx_usb_gdt_device,
 338         &au1xxx_usb_otg_device,
 339         &au1200_lcd_device,
 340         &au1200_mmc0_device,
 341 #ifndef CONFIG_MIPS_DB1200
 342         &au1200_mmc1_device,
 343 #endif
 344 #endif
 345 #ifdef SMBUS_PSC_BASE
 346         &pbdb_smbus_device,
 347 #endif
 348 };
 349
 350 static int __init au1xxx_platform_init(void)
 351 {
 352         unsigned int uartclk = get_au1x00_uart_baud_base() * 16;
 353         int i;
 354
 355         /* Fill up uartclk. */
 356         for (i = 0; au1x00_uart_data[i].flags; i++)
 357                 au1x00_uart_data[i].uartclk = uartclk;
 358
 359         return platform_add_devices(au1xxx_platform_devices,
 360                                     ARRAY_SIZE(au1xxx_platform_devices));
 361 }
 362
 363 arch_initcall(au1xxx_platform_init);