arch/arm/mach-davinci/devices-tnetv107x.c

   1 /*
   2  * Texas Instruments TNETV107X SoC devices
   3  *
   4  * Copyright (C) 2010 Texas Instruments
   5  *
   6  * This program is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU General Public License as
   8  * published by the Free Software Foundation version 2.
   9  *
  10  * This program is distributed "as is" WITHOUT ANY WARRANTY of any
  11  * kind, whether express or implied; without even the implied warranty
  12  * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  */
  15 #include <linux/kernel.h>
  16 #include <linux/init.h>
  17 #include <linux/platform_device.h>
  18 #include <linux/dma-mapping.h>
  19 #include <linux/clk.h>
  20 #include <linux/slab.h>
  21
  22 #include <mach/common.h>
  23 #include <mach/irqs.h>
  24 #include <mach/edma.h>
  25 #include <mach/tnetv107x.h>
  26
  27 #include "clock.h"
  28
  29 /* Base addresses for on-chip devices */
  30 #define TNETV107X_TPCC_BASE                     0x01c00000
  31 #define TNETV107X_TPTC0_BASE                    0x01c10000
  32 #define TNETV107X_TPTC1_BASE                    0x01c10400
  33 #define TNETV107X_WDOG_BASE                     0x08086700
  34 #define TNETV107X_SDIO0_BASE                    0x08088700
  35 #define TNETV107X_SDIO1_BASE                    0x08088800
  36 #define TNETV107X_KEYPAD_BASE                   0x08088a00
  37 #define TNETV107X_ASYNC_EMIF_CNTRL_BASE         0x08200000
  38 #define TNETV107X_ASYNC_EMIF_DATA_CE0_BASE      0x30000000
  39 #define TNETV107X_ASYNC_EMIF_DATA_CE1_BASE      0x40000000
  40 #define TNETV107X_ASYNC_EMIF_DATA_CE2_BASE      0x44000000
  41 #define TNETV107X_ASYNC_EMIF_DATA_CE3_BASE      0x48000000
  42
  43 /* TNETV107X specific EDMA3 information */
  44 #define EDMA_TNETV107X_NUM_DMACH        64
  45 #define EDMA_TNETV107X_NUM_TCC          64
  46 #define EDMA_TNETV107X_NUM_PARAMENTRY   128
  47 #define EDMA_TNETV107X_NUM_EVQUE        2
  48 #define EDMA_TNETV107X_NUM_TC           2
  49 #define EDMA_TNETV107X_CHMAP_EXIST      0
  50 #define EDMA_TNETV107X_NUM_REGIONS      4
  51 #define TNETV107X_DMACH2EVENT_MAP0      0x3C0CE000u
  52 #define TNETV107X_DMACH2EVENT_MAP1      0x000FFFFFu
  53
  54 #define TNETV107X_DMACH_SDIO0_RX                26
  55 #define TNETV107X_DMACH_SDIO0_TX                27
  56 #define TNETV107X_DMACH_SDIO1_RX                28
  57 #define TNETV107X_DMACH_SDIO1_TX                29
  58
  59 static const s8 edma_tc_mapping[][2] = {
  60         /* event queue no       TC no   */
  61         {        0,              0      },
  62         {        1,              1      },
  63         {       -1,             -1      }
  64 };
  65
  66 static const s8 edma_priority_mapping[][2] = {
  67         /* event queue no       Prio    */
  68         {        0,              3      },
  69         {        1,              7      },
  70         {       -1,             -1      }
  71 };
  72
  73 static struct edma_soc_info edma_cc0_info = {
  74         .n_channel              = EDMA_TNETV107X_NUM_DMACH,
  75         .n_region               = EDMA_TNETV107X_NUM_REGIONS,
  76         .n_slot                 = EDMA_TNETV107X_NUM_PARAMENTRY,
  77         .n_tc                   = EDMA_TNETV107X_NUM_TC,
  78         .n_cc                   = 1,
  79         .queue_tc_mapping       = edma_tc_mapping,
  80         .queue_priority_mapping = edma_priority_mapping,
  81 };
  82
  83 static struct edma_soc_info *tnetv107x_edma_info[EDMA_MAX_CC] = {
  84         &edma_cc0_info,
  85 };
  86
  87 static struct resource edma_resources[] = {
  88         {
  89                 .name   = "edma_cc0",
  90                 .start  = TNETV107X_TPCC_BASE,
  91                 .end    = TNETV107X_TPCC_BASE + SZ_32K - 1,
  92                 .flags  = IORESOURCE_MEM,
  93         },
  94         {
  95                 .name   = "edma_tc0",
  96                 .start  = TNETV107X_TPTC0_BASE,
  97                 .end    = TNETV107X_TPTC0_BASE + SZ_1K - 1,
  98                 .flags  = IORESOURCE_MEM,
  99         },
 100         {
 101                 .name   = "edma_tc1",
 102                 .start  = TNETV107X_TPTC1_BASE,
 103                 .end    = TNETV107X_TPTC1_BASE + SZ_1K - 1,
 104                 .flags  = IORESOURCE_MEM,
 105         },
 106         {
 107                 .name   = "edma0",
 108                 .start  = IRQ_TNETV107X_TPCC,
 109                 .flags  = IORESOURCE_IRQ,
 110         },
 111         {
 112                 .name   = "edma0_err",
 113                 .start  = IRQ_TNETV107X_TPCC_ERR,
 114                 .flags  = IORESOURCE_IRQ,
 115         },
 116 };
 117
 118 static struct platform_device edma_device = {
 119         .name           = "edma",
 120         .id             = -1,
 121         .num_resources  = ARRAY_SIZE(edma_resources),
 122         .resource       = edma_resources,
 123         .dev.platform_data = tnetv107x_edma_info,
 124 };
 125
 126 static struct plat_serial8250_port serial_data[] = {
 127         {
 128                 .mapbase        = TNETV107X_UART0_BASE,
 129                 .irq            = IRQ_TNETV107X_UART0,
 130                 .flags          = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST |
 131                                         UPF_FIXED_TYPE | UPF_IOREMAP,
 132                 .type           = PORT_AR7,
 133                 .iotype         = UPIO_MEM32,
 134                 .regshift       = 2,
 135         },
 136         {
 137                 .mapbase        = TNETV107X_UART1_BASE,
 138                 .irq            = IRQ_TNETV107X_UART1,
 139                 .flags          = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST |
 140                                         UPF_FIXED_TYPE | UPF_IOREMAP,
 141                 .type           = PORT_AR7,
 142                 .iotype         = UPIO_MEM32,
 143                 .regshift       = 2,
 144         },
 145         {
 146                 .mapbase        = TNETV107X_UART2_BASE,
 147                 .irq            = IRQ_TNETV107X_UART2,
 148                 .flags          = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST |
 149                                         UPF_FIXED_TYPE | UPF_IOREMAP,
 150                 .type           = PORT_AR7,
 151                 .iotype         = UPIO_MEM32,
 152                 .regshift       = 2,
 153         },
 154         {
 155                 .flags  = 0,
 156         },
 157 };
 158
 159 struct platform_device tnetv107x_serial_device = {
 160         .name                   = "serial8250",
 161         .id                     = PLAT8250_DEV_PLATFORM,
 162         .dev.platform_data      = serial_data,
 163 };
 164
 165 static struct resource mmc0_resources[] = {
 166         { /* Memory mapped registers */
 167                 .start  = TNETV107X_SDIO0_BASE,
 168                 .end    = TNETV107X_SDIO0_BASE + 0x0ff,
 169                 .flags  = IORESOURCE_MEM
 170         },
 171         { /* MMC interrupt */
 172                 .start  = IRQ_TNETV107X_MMC0,
 173                 .flags  = IORESOURCE_IRQ
 174         },
 175         { /* SDIO interrupt */
 176                 .start  = IRQ_TNETV107X_SDIO0,
 177                 .flags  = IORESOURCE_IRQ
 178         },
 179         { /* DMA RX */
 180                 .start  = EDMA_CTLR_CHAN(0, TNETV107X_DMACH_SDIO0_RX),
 181                 .flags  = IORESOURCE_DMA
 182         },
 183         { /* DMA TX */
 184                 .start  = EDMA_CTLR_CHAN(0, TNETV107X_DMACH_SDIO0_TX),
 185                 .flags  = IORESOURCE_DMA
 186         },
 187 };
 188
 189 static struct resource mmc1_resources[] = {
 190         { /* Memory mapped registers */
 191                 .start  = TNETV107X_SDIO1_BASE,
 192                 .end    = TNETV107X_SDIO1_BASE + 0x0ff,
 193                 .flags  = IORESOURCE_MEM
 194         },
 195         { /* MMC interrupt */
 196                 .start  = IRQ_TNETV107X_MMC1,
 197                 .flags  = IORESOURCE_IRQ
 198         },
 199         { /* SDIO interrupt */
 200                 .start  = IRQ_TNETV107X_SDIO1,
 201                 .flags  = IORESOURCE_IRQ
 202         },
 203         { /* DMA RX */
 204                 .start  = EDMA_CTLR_CHAN(0, TNETV107X_DMACH_SDIO1_RX),
 205                 .flags  = IORESOURCE_DMA
 206         },
 207         { /* DMA TX */
 208                 .start  = EDMA_CTLR_CHAN(0, TNETV107X_DMACH_SDIO1_TX),
 209                 .flags  = IORESOURCE_DMA
 210         },
 211 };
 212
 213 static u64 mmc0_dma_mask = DMA_BIT_MASK(32);
 214 static u64 mmc1_dma_mask = DMA_BIT_MASK(32);
 215
 216 static struct platform_device mmc_devices[2] = {
 217         {
 218                 .name           = "davinci_mmc",
 219                 .id             = 0,
 220                 .dev            = {
 221                         .dma_mask               = &mmc0_dma_mask,
 222                         .coherent_dma_mask      = DMA_BIT_MASK(32),
 223                 },
 224                 .num_resources  = ARRAY_SIZE(mmc0_resources),
 225                 .resource       = mmc0_resources
 226         },
 227         {
 228                 .name           = "davinci_mmc",
 229                 .id             = 1,
 230                 .dev            = {
 231                         .dma_mask               = &mmc1_dma_mask,
 232                         .coherent_dma_mask      = DMA_BIT_MASK(32),
 233                 },
 234                 .num_resources  = ARRAY_SIZE(mmc1_resources),
 235                 .resource       = mmc1_resources
 236         },
 237 };
 238
 239 static const u32 emif_windows[] = {
 240         TNETV107X_ASYNC_EMIF_DATA_CE0_BASE, TNETV107X_ASYNC_EMIF_DATA_CE1_BASE,
 241         TNETV107X_ASYNC_EMIF_DATA_CE2_BASE, TNETV107X_ASYNC_EMIF_DATA_CE3_BASE,
 242 };
 243
 244 static const u32 emif_window_sizes[] = { SZ_256M, SZ_64M, SZ_64M, SZ_64M };
 245
 246 static struct resource wdt_resources[] = {
 247         {
 248                 .start  = TNETV107X_WDOG_BASE,
 249                 .end    = TNETV107X_WDOG_BASE + SZ_4K - 1,
 250                 .flags  = IORESOURCE_MEM,
 251         },
 252 };
 253
 254 struct platform_device tnetv107x_wdt_device = {
 255         .name           = "tnetv107x_wdt",
 256         .id             = 0,
 257         .num_resources  = ARRAY_SIZE(wdt_resources),
 258         .resource       = wdt_resources,
 259 };
 260
 261 static int __init nand_init(int chipsel, struct davinci_nand_pdata *data)
 262 {
 263         struct resource res[2];
 264         struct platform_device *pdev;
 265         u32     range;
 266         int     ret;
 267
 268         /* Figure out the resource range from the ale/cle masks */
 269         range = max(data->mask_cle, data->mask_ale);
 270         range = PAGE_ALIGN(range + 4) - 1;
 271
 272         if (range >= emif_window_sizes[chipsel])
 273                 return -EINVAL;
 274
 275         pdev = kzalloc(sizeof(*pdev), GFP_KERNEL);
 276         if (!pdev)
 277                 return -ENOMEM;
 278
 279         pdev->name              = "davinci_nand";
 280         pdev->id                = chipsel;
 281         pdev->dev.platform_data = data;
 282
 283         memset(res, 0, sizeof(res));
 284
 285         res[0].start    = emif_windows[chipsel];
 286         res[0].end      = res[0].start + range;
 287         res[0].flags    = IORESOURCE_MEM;
 288
 289         res[1].start    = TNETV107X_ASYNC_EMIF_CNTRL_BASE;
 290         res[1].end      = res[1].start + SZ_4K - 1;
 291         res[1].flags    = IORESOURCE_MEM;
 292
 293         ret = platform_device_add_resources(pdev, res, ARRAY_SIZE(res));
 294         if (ret < 0) {
 295                 kfree(pdev);
 296                 return ret;
 297         }
 298
 299         return platform_device_register(pdev);
 300 }
 301
 302 static struct resource keypad_resources[] = {
 303         {
 304                 .start  = TNETV107X_KEYPAD_BASE,
 305                 .end    = TNETV107X_KEYPAD_BASE + 0xff,
 306                 .flags  = IORESOURCE_MEM,
 307         },
 308         {
 309                 .start  = IRQ_TNETV107X_KEYPAD,
 310                 .flags  = IORESOURCE_IRQ,
 311                 .name   = "press",
 312         },
 313         {
 314                 .start  = IRQ_TNETV107X_KEYPAD_FREE,
 315                 .flags  = IORESOURCE_IRQ,
 316                 .name   = "release",
 317         },
 318 };
 319
 320 static struct platform_device keypad_device = {
 321         .name           = "tnetv107x-keypad",
 322         .num_resources  = ARRAY_SIZE(keypad_resources),
 323         .resource       = keypad_resources,
 324 };
 325
 326 void __init tnetv107x_devices_init(struct tnetv107x_device_info *info)
 327 {
 328         int i;
 329
 330         platform_device_register(&edma_device);
 331         platform_device_register(&tnetv107x_wdt_device);
 332
 333         if (info->serial_config)
 334                 davinci_serial_init(info->serial_config);
 335
 336         for (i = 0; i < 2; i++)
 337                 if (info->mmc_config[i]) {
 338                         mmc_devices[i].dev.platform_data = info->mmc_config[i];
 339                         platform_device_register(&mmc_devices[i]);
 340                 }
 341
 342         for (i = 0; i < 4; i++)
 343                 if (info->nand_config[i])
 344                         nand_init(i, info->nand_config[i]);
 345
 346         if (info->keypad_config) {
 347                 keypad_device.dev.platform_data = info->keypad_config;
 348                 platform_device_register(&keypad_device);
 349         }
 350 }