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 <linux/io.h>
  25 #include <asm/irq.h>
  26 #include <asm/sizes.h>
  27 #include <mach/irqs.h>
  28
  29 /* assumes CONTROLLER_ONLY# is never asserted in the ESSR register */
  30 #define IOP13XX_TPMI_MMR(dev)   IOP13XX_REG_ADDR32_PHYS(0x48000 + (dev << 12))
  31 #define IOP13XX_TPMI_MEM(dev)   IOP13XX_REG_ADDR32_PHYS(0x60000 + (dev << 13))
  32 #define IOP13XX_TPMI_CTRL(dev)  IOP13XX_REG_ADDR32_PHYS(0x50000 + (dev << 10))
  33 #define IOP13XX_TPMI_IOP_CTRL(dev) (IOP13XX_TPMI_CTRL(dev) + 0x2000)
  34 #define IOP13XX_TPMI_MMR_SIZE       (SZ_4K - 1)
  35 #define IOP13XX_TPMI_MEM_SIZE       (255)
  36 #define IOP13XX_TPMI_MEM_CTRL       (SZ_1K - 1)
  37 #define IOP13XX_TPMI_RESOURCE_MMR  0
  38 #define IOP13XX_TPMI_RESOURCE_MEM  1
  39 #define IOP13XX_TPMI_RESOURCE_CTRL 2
  40 #define IOP13XX_TPMI_RESOURCE_IOP_CTRL 3
  41 #define IOP13XX_TPMI_RESOURCE_IRQ  4
  42
  43 static struct resource iop13xx_tpmi_0_resources[] = {
  44         [IOP13XX_TPMI_RESOURCE_MMR] = {
  45                 .start = IOP13XX_TPMI_MMR(4), /* tpmi0 starts at dev == 4 */
  46                 .end = IOP13XX_TPMI_MMR(4) + IOP13XX_TPMI_MMR_SIZE,
  47                 .flags = IORESOURCE_MEM,
  48         },
  49         [IOP13XX_TPMI_RESOURCE_MEM] = {
  50                 .start = IOP13XX_TPMI_MEM(0),
  51                 .end = IOP13XX_TPMI_MEM(0) + IOP13XX_TPMI_MEM_SIZE,
  52                 .flags = IORESOURCE_MEM,
  53         },
  54         [IOP13XX_TPMI_RESOURCE_CTRL] = {
  55                 .start = IOP13XX_TPMI_CTRL(0),
  56                 .end = IOP13XX_TPMI_CTRL(0) + IOP13XX_TPMI_MEM_CTRL,
  57                 .flags = IORESOURCE_MEM,
  58         },
  59         [IOP13XX_TPMI_RESOURCE_IOP_CTRL] = {
  60                 .start = IOP13XX_TPMI_IOP_CTRL(0),
  61                 .end = IOP13XX_TPMI_IOP_CTRL(0) + IOP13XX_TPMI_MEM_CTRL,
  62                 .flags = IORESOURCE_MEM,
  63         },
  64         [IOP13XX_TPMI_RESOURCE_IRQ] = {
  65                 .start = IRQ_IOP13XX_TPMI0_OUT,
  66                 .end = IRQ_IOP13XX_TPMI0_OUT,
  67                 .flags = IORESOURCE_IRQ
  68         }
  69 };
  70
  71 static struct resource iop13xx_tpmi_1_resources[] = {
  72         [IOP13XX_TPMI_RESOURCE_MMR] = {
  73                 .start = IOP13XX_TPMI_MMR(1),
  74                 .end = IOP13XX_TPMI_MMR(1) + IOP13XX_TPMI_MMR_SIZE,
  75                 .flags = IORESOURCE_MEM,
  76         },
  77         [IOP13XX_TPMI_RESOURCE_MEM] = {
  78                 .start = IOP13XX_TPMI_MEM(1),
  79                 .end = IOP13XX_TPMI_MEM(1) + IOP13XX_TPMI_MEM_SIZE,
  80                 .flags = IORESOURCE_MEM,
  81         },
  82         [IOP13XX_TPMI_RESOURCE_CTRL] = {
  83                 .start = IOP13XX_TPMI_CTRL(1),
  84                 .end = IOP13XX_TPMI_CTRL(1) + IOP13XX_TPMI_MEM_CTRL,
  85                 .flags = IORESOURCE_MEM,
  86         },
  87         [IOP13XX_TPMI_RESOURCE_IOP_CTRL] = {
  88                 .start = IOP13XX_TPMI_IOP_CTRL(1),
  89                 .end = IOP13XX_TPMI_IOP_CTRL(1) + IOP13XX_TPMI_MEM_CTRL,
  90                 .flags = IORESOURCE_MEM,
  91         },
  92         [IOP13XX_TPMI_RESOURCE_IRQ] = {
  93                 .start = IRQ_IOP13XX_TPMI1_OUT,
  94                 .end = IRQ_IOP13XX_TPMI1_OUT,
  95                 .flags = IORESOURCE_IRQ
  96         }
  97 };
  98
  99 static struct resource iop13xx_tpmi_2_resources[] = {
 100         [IOP13XX_TPMI_RESOURCE_MMR] = {
 101                 .start = IOP13XX_TPMI_MMR(2),
 102                 .end = IOP13XX_TPMI_MMR(2) + IOP13XX_TPMI_MMR_SIZE,
 103                 .flags = IORESOURCE_MEM,
 104         },
 105         [IOP13XX_TPMI_RESOURCE_MEM] = {
 106                 .start = IOP13XX_TPMI_MEM(2),
 107                 .end = IOP13XX_TPMI_MEM(2) + IOP13XX_TPMI_MEM_SIZE,
 108                 .flags = IORESOURCE_MEM,
 109         },
 110         [IOP13XX_TPMI_RESOURCE_CTRL] = {
 111                 .start = IOP13XX_TPMI_CTRL(2),
 112                 .end = IOP13XX_TPMI_CTRL(2) + IOP13XX_TPMI_MEM_CTRL,
 113                 .flags = IORESOURCE_MEM,
 114         },
 115         [IOP13XX_TPMI_RESOURCE_IOP_CTRL] = {
 116                 .start = IOP13XX_TPMI_IOP_CTRL(2),
 117                 .end = IOP13XX_TPMI_IOP_CTRL(2) + IOP13XX_TPMI_MEM_CTRL,
 118                 .flags = IORESOURCE_MEM,
 119         },
 120         [IOP13XX_TPMI_RESOURCE_IRQ] = {
 121                 .start = IRQ_IOP13XX_TPMI2_OUT,
 122                 .end = IRQ_IOP13XX_TPMI2_OUT,
 123                 .flags = IORESOURCE_IRQ
 124         }
 125 };
 126
 127 static struct resource iop13xx_tpmi_3_resources[] = {
 128         [IOP13XX_TPMI_RESOURCE_MMR] = {
 129                 .start = IOP13XX_TPMI_MMR(3),
 130                 .end = IOP13XX_TPMI_MMR(3) + IOP13XX_TPMI_MMR_SIZE,
 131                 .flags = IORESOURCE_MEM,
 132         },
 133         [IOP13XX_TPMI_RESOURCE_MEM] = {
 134                 .start = IOP13XX_TPMI_MEM(3),
 135                 .end = IOP13XX_TPMI_MEM(3) + IOP13XX_TPMI_MEM_SIZE,
 136                 .flags = IORESOURCE_MEM,
 137         },
 138         [IOP13XX_TPMI_RESOURCE_CTRL] = {
 139                 .start = IOP13XX_TPMI_CTRL(3),
 140                 .end = IOP13XX_TPMI_CTRL(3) + IOP13XX_TPMI_MEM_CTRL,
 141                 .flags = IORESOURCE_MEM,
 142         },
 143         [IOP13XX_TPMI_RESOURCE_IOP_CTRL] = {
 144                 .start = IOP13XX_TPMI_IOP_CTRL(3),
 145                 .end = IOP13XX_TPMI_IOP_CTRL(3) + IOP13XX_TPMI_MEM_CTRL,
 146                 .flags = IORESOURCE_MEM,
 147         },
 148         [IOP13XX_TPMI_RESOURCE_IRQ] = {
 149                 .start = IRQ_IOP13XX_TPMI3_OUT,
 150                 .end = IRQ_IOP13XX_TPMI3_OUT,
 151                 .flags = IORESOURCE_IRQ
 152         }
 153 };
 154
 155 u64 iop13xx_tpmi_mask = DMA_BIT_MASK(32);
 156 static struct platform_device iop13xx_tpmi_0_device = {
 157         .name = "iop-tpmi",
 158         .id = 0,
 159         .num_resources = ARRAY_SIZE(iop13xx_tpmi_0_resources),
 160         .resource = iop13xx_tpmi_0_resources,
 161         .dev = {
 162                 .dma_mask          = &iop13xx_tpmi_mask,
 163                 .coherent_dma_mask = DMA_BIT_MASK(32),
 164         },
 165 };
 166
 167 static struct platform_device iop13xx_tpmi_1_device = {
 168         .name = "iop-tpmi",
 169         .id = 1,
 170         .num_resources = ARRAY_SIZE(iop13xx_tpmi_1_resources),
 171         .resource = iop13xx_tpmi_1_resources,
 172         .dev = {
 173                 .dma_mask          = &iop13xx_tpmi_mask,
 174                 .coherent_dma_mask = DMA_BIT_MASK(32),
 175         },
 176 };
 177
 178 static struct platform_device iop13xx_tpmi_2_device = {
 179         .name = "iop-tpmi",
 180         .id = 2,
 181         .num_resources = ARRAY_SIZE(iop13xx_tpmi_2_resources),
 182         .resource = iop13xx_tpmi_2_resources,
 183         .dev = {
 184                 .dma_mask          = &iop13xx_tpmi_mask,
 185                 .coherent_dma_mask = DMA_BIT_MASK(32),
 186         },
 187 };
 188
 189 static struct platform_device iop13xx_tpmi_3_device = {
 190         .name = "iop-tpmi",
 191         .id = 3,
 192         .num_resources = ARRAY_SIZE(iop13xx_tpmi_3_resources),
 193         .resource = iop13xx_tpmi_3_resources,
 194         .dev = {
 195                 .dma_mask          = &iop13xx_tpmi_mask,
 196                 .coherent_dma_mask = DMA_BIT_MASK(32),
 197         },
 198 };
 199
 200 __init void iop13xx_add_tpmi_devices(void)
 201 {
 202         unsigned short device_id;
 203
 204         /* tpmi's not present on iop341 or iop342 */
 205         if (__raw_readl(IOP13XX_ESSR0) & IOP13XX_INTERFACE_SEL_PCIX)
 206                 /* ATUE must be present */
 207                 device_id = __raw_readw(IOP13XX_ATUE_DID);
 208         else
 209                 /* ATUX must be present */
 210                 device_id = __raw_readw(IOP13XX_ATUX_DID);
 211
 212         switch (device_id) {
 213         /* iop34[1|2] 0-tpmi */
 214         case 0x3380:
 215         case 0x3384:
 216         case 0x3388:
 217         case 0x338c:
 218         case 0x3382:
 219         case 0x3386:
 220         case 0x338a:
 221         case 0x338e:
 222                 return;
 223         /* iop348 1-tpmi */
 224         case 0x3310:
 225         case 0x3312:
 226         case 0x3314:
 227         case 0x3318:
 228         case 0x331a:
 229         case 0x331c:
 230         case 0x33c0:
 231         case 0x33c2:
 232         case 0x33c4:
 233         case 0x33c8:
 234         case 0x33ca:
 235         case 0x33cc:
 236         case 0x33b0:
 237         case 0x33b2:
 238         case 0x33b4:
 239         case 0x33b8:
 240         case 0x33ba:
 241         case 0x33bc:
 242         case 0x3320:
 243         case 0x3322:
 244         case 0x3324:
 245         case 0x3328:
 246         case 0x332a:
 247         case 0x332c:
 248                 platform_device_register(&iop13xx_tpmi_0_device);
 249                 return;
 250         default:
 251                 platform_device_register(&iop13xx_tpmi_0_device);
 252                 platform_device_register(&iop13xx_tpmi_1_device);
 253                 platform_device_register(&iop13xx_tpmi_2_device);
 254                 platform_device_register(&iop13xx_tpmi_3_device);
 255                 return;
 256         }
 257 }