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   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
  21 #define PORT(_base, _irq)                               \
  22         {                                               \
  23                 .iobase         = _base,                \
  24                 .membase        = (void __iomem *)_base,\
  25                 .mapbase        = CPHYSADDR(_base),     \
  26                 .irq            = _irq,                 \
  27                 .regshift       = 2,                    \
  28                 .iotype         = UPIO_AU,              \
  29                 .flags          = UPF_SKIP_TEST         \
  30         }
  31
  32 static struct plat_serial8250_port au1x00_uart_data[] = {
  33 #if defined(CONFIG_SERIAL_8250_AU1X00)
  34 #if defined(CONFIG_SOC_AU1000)
  35         PORT(UART0_ADDR, AU1000_UART0_INT),
  36         PORT(UART1_ADDR, AU1000_UART1_INT),
  37         PORT(UART2_ADDR, AU1000_UART2_INT),
  38         PORT(UART3_ADDR, AU1000_UART3_INT),
  39 #elif defined(CONFIG_SOC_AU1500)
  40         PORT(UART0_ADDR, AU1500_UART0_INT),
  41         PORT(UART3_ADDR, AU1500_UART3_INT),
  42 #elif defined(CONFIG_SOC_AU1100)
  43         PORT(UART0_ADDR, AU1100_UART0_INT),
  44         PORT(UART1_ADDR, AU1100_UART1_INT),
  45         PORT(UART3_ADDR, AU1100_UART3_INT),
  46 #elif defined(CONFIG_SOC_AU1550)
  47         PORT(UART0_ADDR, AU1550_UART0_INT),
  48         PORT(UART1_ADDR, AU1550_UART1_INT),
  49         PORT(UART3_ADDR, AU1550_UART3_INT),
  50 #elif defined(CONFIG_SOC_AU1200)
  51         PORT(UART0_ADDR, AU1200_UART0_INT),
  52         PORT(UART1_ADDR, AU1200_UART1_INT),
  53 #endif
  54 #endif  /* CONFIG_SERIAL_8250_AU1X00 */
  55         { },
  56 };
  57
  58 static struct platform_device au1xx0_uart_device = {
  59         .name                   = "serial8250",
  60         .id                     = PLAT8250_DEV_AU1X00,
  61         .dev                    = {
  62                 .platform_data  = au1x00_uart_data,
  63         },
  64 };
  65
  66 /* OHCI (USB full speed host controller) */
  67 static struct resource au1xxx_usb_ohci_resources[] = {
  68         [0] = {
  69                 .start          = USB_OHCI_BASE,
  70                 .end            = USB_OHCI_BASE + USB_OHCI_LEN - 1,
  71                 .flags          = IORESOURCE_MEM,
  72         },
  73         [1] = {
  74                 .start          = AU1000_USB_HOST_INT,
  75                 .end            = AU1000_USB_HOST_INT,
  76                 .flags          = IORESOURCE_IRQ,
  77         },
  78 };
  79
  80 /* The dmamask must be set for OHCI to work */
  81 static u64 ohci_dmamask = DMA_32BIT_MASK;
  82
  83 static struct platform_device au1xxx_usb_ohci_device = {
  84         .name           = "au1xxx-ohci",
  85         .id             = 0,
  86         .dev = {
  87                 .dma_mask               = &ohci_dmamask,
  88                 .coherent_dma_mask      = DMA_32BIT_MASK,
  89         },
  90         .num_resources  = ARRAY_SIZE(au1xxx_usb_ohci_resources),
  91         .resource       = au1xxx_usb_ohci_resources,
  92 };
  93
  94 /*** AU1100 LCD controller ***/
  95
  96 #ifdef CONFIG_FB_AU1100
  97 static struct resource au1100_lcd_resources[] = {
  98         [0] = {
  99                 .start          = LCD_PHYS_ADDR,
 100                 .end            = LCD_PHYS_ADDR + 0x800 - 1,
 101                 .flags          = IORESOURCE_MEM,
 102         },
 103         [1] = {
 104                 .start          = AU1100_LCD_INT,
 105                 .end            = AU1100_LCD_INT,
 106                 .flags          = IORESOURCE_IRQ,
 107         }
 108 };
 109
 110 static u64 au1100_lcd_dmamask = DMA_32BIT_MASK;
 111
 112 static struct platform_device au1100_lcd_device = {
 113         .name           = "au1100-lcd",
 114         .id             = 0,
 115         .dev = {
 116                 .dma_mask               = &au1100_lcd_dmamask,
 117                 .coherent_dma_mask      = DMA_32BIT_MASK,
 118         },
 119         .num_resources  = ARRAY_SIZE(au1100_lcd_resources),
 120         .resource       = au1100_lcd_resources,
 121 };
 122 #endif
 123
 124 #ifdef CONFIG_SOC_AU1200
 125 /* EHCI (USB high speed host controller) */
 126 static struct resource au1xxx_usb_ehci_resources[] = {
 127         [0] = {
 128                 .start          = USB_EHCI_BASE,
 129                 .end            = USB_EHCI_BASE + USB_EHCI_LEN - 1,
 130                 .flags          = IORESOURCE_MEM,
 131         },
 132         [1] = {
 133                 .start          = AU1000_USB_HOST_INT,
 134                 .end            = AU1000_USB_HOST_INT,
 135                 .flags          = IORESOURCE_IRQ,
 136         },
 137 };
 138
 139 static u64 ehci_dmamask = DMA_32BIT_MASK;
 140
 141 static struct platform_device au1xxx_usb_ehci_device = {
 142         .name           = "au1xxx-ehci",
 143         .id             = 0,
 144         .dev = {
 145                 .dma_mask               = &ehci_dmamask,
 146                 .coherent_dma_mask      = DMA_32BIT_MASK,
 147         },
 148         .num_resources  = ARRAY_SIZE(au1xxx_usb_ehci_resources),
 149         .resource       = au1xxx_usb_ehci_resources,
 150 };
 151
 152 /* Au1200 UDC (USB gadget controller) */
 153 static struct resource au1xxx_usb_gdt_resources[] = {
 154         [0] = {
 155                 .start          = USB_UDC_BASE,
 156                 .end            = USB_UDC_BASE + USB_UDC_LEN - 1,
 157                 .flags          = IORESOURCE_MEM,
 158         },
 159         [1] = {
 160                 .start          = AU1200_USB_INT,
 161                 .end            = AU1200_USB_INT,
 162                 .flags          = IORESOURCE_IRQ,
 163         },
 164 };
 165
 166 static struct resource au1xxx_mmc_resources[] = {
 167         [0] = {
 168                 .start          = SD0_PHYS_ADDR,
 169                 .end            = SD0_PHYS_ADDR + 0x7ffff,
 170                 .flags          = IORESOURCE_MEM,
 171         },
 172         [1] = {
 173                 .start          = SD1_PHYS_ADDR,
 174                 .end            = SD1_PHYS_ADDR + 0x7ffff,
 175                 .flags          = IORESOURCE_MEM,
 176         },
 177         [2] = {
 178                 .start          = AU1200_SD_INT,
 179                 .end            = AU1200_SD_INT,
 180                 .flags          = IORESOURCE_IRQ,
 181         }
 182 };
 183
 184 static u64 udc_dmamask = DMA_32BIT_MASK;
 185
 186 static struct platform_device au1xxx_usb_gdt_device = {
 187         .name           = "au1xxx-udc",
 188         .id             = 0,
 189         .dev = {
 190                 .dma_mask               = &udc_dmamask,
 191                 .coherent_dma_mask      = DMA_32BIT_MASK,
 192         },
 193         .num_resources  = ARRAY_SIZE(au1xxx_usb_gdt_resources),
 194         .resource       = au1xxx_usb_gdt_resources,
 195 };
 196
 197 /* Au1200 UOC (USB OTG controller) */
 198 static struct resource au1xxx_usb_otg_resources[] = {
 199         [0] = {
 200                 .start          = USB_UOC_BASE,
 201                 .end            = USB_UOC_BASE + USB_UOC_LEN - 1,
 202                 .flags          = IORESOURCE_MEM,
 203         },
 204         [1] = {
 205                 .start          = AU1200_USB_INT,
 206                 .end            = AU1200_USB_INT,
 207                 .flags          = IORESOURCE_IRQ,
 208         },
 209 };
 210
 211 static u64 uoc_dmamask = DMA_32BIT_MASK;
 212
 213 static struct platform_device au1xxx_usb_otg_device = {
 214         .name           = "au1xxx-uoc",
 215         .id             = 0,
 216         .dev = {
 217                 .dma_mask               = &uoc_dmamask,
 218                 .coherent_dma_mask      = DMA_32BIT_MASK,
 219         },
 220         .num_resources  = ARRAY_SIZE(au1xxx_usb_otg_resources),
 221         .resource       = au1xxx_usb_otg_resources,
 222 };
 223
 224 static struct resource au1200_lcd_resources[] = {
 225         [0] = {
 226                 .start          = LCD_PHYS_ADDR,
 227                 .end            = LCD_PHYS_ADDR + 0x800 - 1,
 228                 .flags          = IORESOURCE_MEM,
 229         },
 230         [1] = {
 231                 .start          = AU1200_LCD_INT,
 232                 .end            = AU1200_LCD_INT,
 233                 .flags          = IORESOURCE_IRQ,
 234         }
 235 };
 236
 237 static u64 au1200_lcd_dmamask = DMA_32BIT_MASK;
 238
 239 static struct platform_device au1200_lcd_device = {
 240         .name           = "au1200-lcd",
 241         .id             = 0,
 242         .dev = {
 243                 .dma_mask               = &au1200_lcd_dmamask,
 244                 .coherent_dma_mask      = DMA_32BIT_MASK,
 245         },
 246         .num_resources  = ARRAY_SIZE(au1200_lcd_resources),
 247         .resource       = au1200_lcd_resources,
 248 };
 249
 250 static u64 au1xxx_mmc_dmamask =  DMA_32BIT_MASK;
 251
 252 static struct platform_device au1xxx_mmc_device = {
 253         .name = "au1xxx-mmc",
 254         .id = 0,
 255         .dev = {
 256                 .dma_mask               = &au1xxx_mmc_dmamask,
 257                 .coherent_dma_mask      = DMA_32BIT_MASK,
 258         },
 259         .num_resources  = ARRAY_SIZE(au1xxx_mmc_resources),
 260         .resource       = au1xxx_mmc_resources,
 261 };
 262 #endif /* #ifdef CONFIG_SOC_AU1200 */
 263
 264 static struct platform_device au1x00_pcmcia_device = {
 265         .name           = "au1x00-pcmcia",
 266         .id             = 0,
 267 };
 268
 269 /* All Alchemy demoboards with I2C have this #define in their headers */
 270 #ifdef SMBUS_PSC_BASE
 271 static struct resource pbdb_smbus_resources[] = {
 272         {
 273                 .start  = CPHYSADDR(SMBUS_PSC_BASE),
 274                 .end    = CPHYSADDR(SMBUS_PSC_BASE + 0xfffff),
 275                 .flags  = IORESOURCE_MEM,
 276         },
 277 };
 278
 279 static struct platform_device pbdb_smbus_device = {
 280         .name           = "au1xpsc_smbus",
 281         .id             = 0,    /* bus number */
 282         .num_resources  = ARRAY_SIZE(pbdb_smbus_resources),
 283         .resource       = pbdb_smbus_resources,
 284 };
 285 #endif
 286
 287 static struct platform_device *au1xxx_platform_devices[] __initdata = {
 288         &au1xx0_uart_device,
 289         &au1xxx_usb_ohci_device,
 290         &au1x00_pcmcia_device,
 291 #ifdef CONFIG_FB_AU1100
 292         &au1100_lcd_device,
 293 #endif
 294 #ifdef CONFIG_SOC_AU1200
 295         &au1xxx_usb_ehci_device,
 296         &au1xxx_usb_gdt_device,
 297         &au1xxx_usb_otg_device,
 298         &au1200_lcd_device,
 299         &au1xxx_mmc_device,
 300 #endif
 301 #ifdef SMBUS_PSC_BASE
 302         &pbdb_smbus_device,
 303 #endif
 304 };
 305
 306 static int __init au1xxx_platform_init(void)
 307 {
 308         unsigned int uartclk = get_au1x00_uart_baud_base() * 16;
 309         int i;
 310
 311         /* Fill up uartclk. */
 312         for (i = 0; au1x00_uart_data[i].flags; i++)
 313                 au1x00_uart_data[i].uartclk = uartclk;
 314
 315         return platform_add_devices(au1xxx_platform_devices,
 316                                     ARRAY_SIZE(au1xxx_platform_devices));
 317 }
 318
 319 arch_initcall(au1xxx_platform_init);