arch/arm/mach-iop13xx/tpmi.c

   1 /*
   2  * iop13xx tpmi device resources
   3  * Copyright (c) 2005-2006, Intel Corporation.
   4  *
   5  * This program is free software; you can redistribute it and/or modify it
   6  * under the terms and conditions of the GNU General Public License,
   7  * version 2, as published by the Free Software Foundation.
   8  *
   9  * This program is distributed in the hope it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  12  * more details.
  13  *
  14  * You should have received a copy of the GNU General Public License along with
  15  * this program; if not, write to the Free Software Foundation, Inc., 59 Temple
  16  * Place - Suite 330, Boston, MA 02111-1307 USA.
  17  *
  18  */
  19
  20 #include <linux/kernel.h>
  21 #include <linux/init.h>
  22 #include <linux/platform_device.h>
  23 #include <linux/dma-mapping.h>
  24 #include <asm/io.h>
  25 #include <asm/irq.h>
  26 #include <asm/sizes.h>
  27
  28 /* assumes CONTROLLER_ONLY# is never asserted in the ESSR register */
  29 #define IOP13XX_TPMI_MMR(dev)   IOP13XX_REG_ADDR32_PHYS(0x48000 + (dev << 12))
  30 #define IOP13XX_TPMI_MEM(dev)   IOP13XX_REG_ADDR32_PHYS(0x60000 + (dev << 13))
  31 #define IOP13XX_TPMI_CTRL(dev)  IOP13XX_REG_ADDR32_PHYS(0x50000 + (dev << 10))
  32 #define IOP13XX_TPMI_IOP_CTRL(dev) (IOP13XX_TPMI_CTRL(dev) + 0x2000)
  33 #define IOP13XX_TPMI_MMR_SIZE       (SZ_4K - 1)
  34 #define IOP13XX_TPMI_MEM_SIZE       (255)
  35 #define IOP13XX_TPMI_MEM_CTRL       (SZ_1K - 1)
  36 #define IOP13XX_TPMI_RESOURCE_MMR  0
  37 #define IOP13XX_TPMI_RESOURCE_MEM  1
  38 #define IOP13XX_TPMI_RESOURCE_CTRL 2
  39 #define IOP13XX_TPMI_RESOURCE_IOP_CTRL 3
  40 #define IOP13XX_TPMI_RESOURCE_IRQ  4
  41
  42 static struct resource iop13xx_tpmi_0_resources[] = {
  43         [IOP13XX_TPMI_RESOURCE_MMR] = {
  44                 .start = IOP13XX_TPMI_MMR(4), /* tpmi0 starts at dev == 4 */
  45                 .end = IOP13XX_TPMI_MMR(4) + IOP13XX_TPMI_MMR_SIZE,
  46                 .flags = IORESOURCE_MEM,
  47         },
  48         [IOP13XX_TPMI_RESOURCE_MEM] = {
  49                 .start = IOP13XX_TPMI_MEM(0),
  50                 .end = IOP13XX_TPMI_MEM(0) + IOP13XX_TPMI_MEM_SIZE,
  51                 .flags = IORESOURCE_MEM,
  52         },
  53         [IOP13XX_TPMI_RESOURCE_CTRL] = {
  54                 .start = IOP13XX_TPMI_CTRL(0),
  55                 .end = IOP13XX_TPMI_CTRL(0) + IOP13XX_TPMI_MEM_CTRL,
  56                 .flags = IORESOURCE_MEM,
  57         },
  58         [IOP13XX_TPMI_RESOURCE_IOP_CTRL] = {
  59                 .start = IOP13XX_TPMI_IOP_CTRL(0),
  60                 .end = IOP13XX_TPMI_IOP_CTRL(0) + IOP13XX_TPMI_MEM_CTRL,
  61                 .flags = IORESOURCE_MEM,
  62         },
  63         [IOP13XX_TPMI_RESOURCE_IRQ] = {
  64                 .start = IRQ_IOP13XX_TPMI0_OUT,
  65                 .end = IRQ_IOP13XX_TPMI0_OUT,
  66                 .flags = IORESOURCE_IRQ
  67         }
  68 };
  69
  70 static struct resource iop13xx_tpmi_1_resources[] = {
  71         [IOP13XX_TPMI_RESOURCE_MMR] = {
  72                 .start = IOP13XX_TPMI_MMR(1),
  73                 .end = IOP13XX_TPMI_MMR(1) + IOP13XX_TPMI_MMR_SIZE,
  74                 .flags = IORESOURCE_MEM,
  75         },
  76         [IOP13XX_TPMI_RESOURCE_MEM] = {
  77                 .start = IOP13XX_TPMI_MEM(1),
  78                 .end = IOP13XX_TPMI_MEM(1) + IOP13XX_TPMI_MEM_SIZE,
  79                 .flags = IORESOURCE_MEM,
  80         },
  81         [IOP13XX_TPMI_RESOURCE_CTRL] = {
  82                 .start = IOP13XX_TPMI_CTRL(1),
  83                 .end = IOP13XX_TPMI_CTRL(1) + IOP13XX_TPMI_MEM_CTRL,
  84                 .flags = IORESOURCE_MEM,
  85         },
  86         [IOP13XX_TPMI_RESOURCE_IOP_CTRL] = {
  87                 .start = IOP13XX_TPMI_IOP_CTRL(1),
  88                 .end = IOP13XX_TPMI_IOP_CTRL(1) + IOP13XX_TPMI_MEM_CTRL,
  89                 .flags = IORESOURCE_MEM,
  90         },
  91         [IOP13XX_TPMI_RESOURCE_IRQ] = {
  92                 .start = IRQ_IOP13XX_TPMI1_OUT,
  93                 .end = IRQ_IOP13XX_TPMI1_OUT,
  94                 .flags = IORESOURCE_IRQ
  95         }
  96 };
  97
  98 static struct resource iop13xx_tpmi_2_resources[] = {
  99         [IOP13XX_TPMI_RESOURCE_MMR] = {
 100                 .start = IOP13XX_TPMI_MMR(2),
 101                 .end = IOP13XX_TPMI_MMR(2) + IOP13XX_TPMI_MMR_SIZE,
 102                 .flags = IORESOURCE_MEM,
 103         },
 104         [IOP13XX_TPMI_RESOURCE_MEM] = {
 105                 .start = IOP13XX_TPMI_MEM(2),
 106                 .end = IOP13XX_TPMI_MEM(2) + IOP13XX_TPMI_MEM_SIZE,
 107                 .flags = IORESOURCE_MEM,
 108         },
 109         [IOP13XX_TPMI_RESOURCE_CTRL] = {
 110                 .start = IOP13XX_TPMI_CTRL(2),
 111                 .end = IOP13XX_TPMI_CTRL(2) + IOP13XX_TPMI_MEM_CTRL,
 112                 .flags = IORESOURCE_MEM,
 113         },
 114         [IOP13XX_TPMI_RESOURCE_IOP_CTRL] = {
 115                 .start = IOP13XX_TPMI_IOP_CTRL(2),
 116                 .end = IOP13XX_TPMI_IOP_CTRL(2) + IOP13XX_TPMI_MEM_CTRL,
 117                 .flags = IORESOURCE_MEM,
 118         },
 119         [IOP13XX_TPMI_RESOURCE_IRQ] = {
 120                 .start = IRQ_IOP13XX_TPMI2_OUT,
 121                 .end = IRQ_IOP13XX_TPMI2_OUT,
 122                 .flags = IORESOURCE_IRQ
 123         }
 124 };
 125
 126 static struct resource iop13xx_tpmi_3_resources[] = {
 127         [IOP13XX_TPMI_RESOURCE_MMR] = {
 128                 .start = IOP13XX_TPMI_MMR(3),
 129                 .end = IOP13XX_TPMI_MMR(3) + IOP13XX_TPMI_MMR_SIZE,
 130                 .flags = IORESOURCE_MEM,
 131         },
 132         [IOP13XX_TPMI_RESOURCE_MEM] = {
 133                 .start = IOP13XX_TPMI_MEM(3),
 134                 .end = IOP13XX_TPMI_MEM(3) + IOP13XX_TPMI_MEM_SIZE,
 135                 .flags = IORESOURCE_MEM,
 136         },
 137         [IOP13XX_TPMI_RESOURCE_CTRL] = {
 138                 .start = IOP13XX_TPMI_CTRL(3),
 139                 .end = IOP13XX_TPMI_CTRL(3) + IOP13XX_TPMI_MEM_CTRL,
 140                 .flags = IORESOURCE_MEM,
 141         },
 142         [IOP13XX_TPMI_RESOURCE_IOP_CTRL] = {
 143                 .start = IOP13XX_TPMI_IOP_CTRL(3),
 144                 .end = IOP13XX_TPMI_IOP_CTRL(3) + IOP13XX_TPMI_MEM_CTRL,
 145                 .flags = IORESOURCE_MEM,
 146         },
 147         [IOP13XX_TPMI_RESOURCE_IRQ] = {
 148                 .start = IRQ_IOP13XX_TPMI3_OUT,
 149                 .end = IRQ_IOP13XX_TPMI3_OUT,
 150                 .flags = IORESOURCE_IRQ
 151         }
 152 };
 153
 154 u64 iop13xx_tpmi_mask = DMA_64BIT_MASK;
 155 static struct platform_device iop13xx_tpmi_0_device = {
 156         .name = "iop-tpmi",
 157         .id = 0,
 158         .num_resources = ARRAY_SIZE(iop13xx_tpmi_0_resources),
 159         .resource = iop13xx_tpmi_0_resources,
 160         .dev = {
 161                 .dma_mask          = &iop13xx_tpmi_mask,
 162                 .coherent_dma_mask = DMA_64BIT_MASK,
 163         },
 164 };
 165
 166 static struct platform_device iop13xx_tpmi_1_device = {
 167         .name = "iop-tpmi",
 168         .id = 1,
 169         .num_resources = ARRAY_SIZE(iop13xx_tpmi_1_resources),
 170         .resource = iop13xx_tpmi_1_resources,
 171         .dev = {
 172                 .dma_mask          = &iop13xx_tpmi_mask,
 173                 .coherent_dma_mask = DMA_64BIT_MASK,
 174         },
 175 };
 176
 177 static struct platform_device iop13xx_tpmi_2_device = {
 178         .name = "iop-tpmi",
 179         .id = 2,
 180         .num_resources = ARRAY_SIZE(iop13xx_tpmi_2_resources),
 181         .resource = iop13xx_tpmi_2_resources,
 182         .dev = {
 183                 .dma_mask          = &iop13xx_tpmi_mask,
 184                 .coherent_dma_mask = DMA_64BIT_MASK,
 185         },
 186 };
 187
 188 static struct platform_device iop13xx_tpmi_3_device = {
 189         .name = "iop-tpmi",
 190         .id = 3,
 191         .num_resources = ARRAY_SIZE(iop13xx_tpmi_3_resources),
 192         .resource = iop13xx_tpmi_3_resources,
 193         .dev = {
 194                 .dma_mask          = &iop13xx_tpmi_mask,
 195                 .coherent_dma_mask = DMA_64BIT_MASK,
 196         },
 197 };
 198
 199 __init void iop13xx_add_tpmi_devices(void)
 200 {
 201         unsigned short device_id;
 202
 203         /* tpmi's not present on iop341 or iop342 */
 204         if (__raw_readl(IOP13XX_ESSR0) & IOP13XX_INTERFACE_SEL_PCIX)
 205                 /* ATUE must be present */
 206                 device_id = __raw_readw(IOP13XX_ATUE_DID);
 207         else
 208                 /* ATUX must be present */
 209                 device_id = __raw_readw(IOP13XX_ATUX_DID);
 210
 211         switch (device_id) {
 212         /* iop34[1|2] 0-tpmi */
 213         case 0x3380:
 214         case 0x3384:
 215         case 0x3388:
 216         case 0x338c:
 217         case 0x3382:
 218         case 0x3386:
 219         case 0x338a:
 220         case 0x338e:
 221                 return;
 222         /* iop348 1-tpmi */
 223         case 0x3310:
 224         case 0x3312:
 225         case 0x3314:
 226         case 0x3318:
 227         case 0x331a:
 228         case 0x331c:
 229         case 0x33c0:
 230         case 0x33c2:
 231         case 0x33c4:
 232         case 0x33c8:
 233         case 0x33ca:
 234         case 0x33cc:
 235         case 0x33b0:
 236         case 0x33b2:
 237         case 0x33b4:
 238         case 0x33b8:
 239         case 0x33ba:
 240         case 0x33bc:
 241         case 0x3320:
 242         case 0x3322:
 243         case 0x3324:
 244         case 0x3328:
 245         case 0x332a:
 246         case 0x332c:
 247                 platform_device_register(&iop13xx_tpmi_0_device);
 248                 return;
 249         default:
 250                 platform_device_register(&iop13xx_tpmi_0_device);
 251                 platform_device_register(&iop13xx_tpmi_1_device);
 252                 platform_device_register(&iop13xx_tpmi_2_device);
 253                 platform_device_register(&iop13xx_tpmi_3_device);
 254                 return;
 255         }
 256 }