arch/arm/mach-nomadik/board-nhk8815.c

   1 /*
   2  *  linux/arch/arm/mach-nomadik/board-8815nhk.c
   3  *
   4  *  Copyright (C) STMicroelectronics
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License version 2, as
   8  * published by the Free Software Foundation.
   9  *
  10  *  NHK15 board specifc driver definition
  11  */
  12 #include <linux/types.h>
  13 #include <linux/kernel.h>
  14 #include <linux/init.h>
  15 #include <linux/platform_device.h>
  16 #include <linux/amba/bus.h>
  17 #include <linux/amba/mmci.h>
  18 #include <linux/interrupt.h>
  19 #include <linux/gpio.h>
  20 #include <linux/mtd/mtd.h>
  21 #include <linux/mtd/nand.h>
  22 #include <linux/mtd/onenand.h>
  23 #include <linux/mtd/partitions.h>
  24 #include <linux/i2c.h>
  25 #include <linux/io.h>
  26 #include <asm/hardware/vic.h>
  27 #include <asm/sizes.h>
  28 #include <asm/mach-types.h>
  29 #include <asm/mach/arch.h>
  30 #include <asm/mach/irq.h>
  31 #include <asm/mach/flash.h>
  32 #include <asm/mach/time.h>
  33
  34 #include <plat/gpio-nomadik.h>
  35 #include <plat/mtu.h>
  36
  37 #include <mach/nand.h>
  38 #include <mach/fsmc.h>
  39
  40 #include "cpu-8815.h"
  41
  42 /* Initial value for SRC control register: all timers use MXTAL/8 source */
  43 #define SRC_CR_INIT_MASK        0x00007fff
  44 #define SRC_CR_INIT_VAL         0x2aaa8000
  45
  46 /* These addresses span 16MB, so use three individual pages */
  47 static struct resource nhk8815_nand_resources[] = {
  48         {
  49                 .name = "nand_addr",
  50                 .start = NAND_IO_ADDR,
  51                 .end = NAND_IO_ADDR + 0xfff,
  52                 .flags = IORESOURCE_MEM,
  53         }, {
  54                 .name = "nand_cmd",
  55                 .start = NAND_IO_CMD,
  56                 .end = NAND_IO_CMD + 0xfff,
  57                 .flags = IORESOURCE_MEM,
  58         }, {
  59                 .name = "nand_data",
  60                 .start = NAND_IO_DATA,
  61                 .end = NAND_IO_DATA + 0xfff,
  62                 .flags = IORESOURCE_MEM,
  63         }
  64 };
  65
  66 static int nhk8815_nand_init(void)
  67 {
  68         /* FSMC setup for nand chip select (8-bit nand in 8815NHK) */
  69         writel(0x0000000E, FSMC_PCR(0));
  70         writel(0x000D0A00, FSMC_PMEM(0));
  71         writel(0x00100A00, FSMC_PATT(0));
  72
  73         /* enable access to the chip select area */
  74         writel(readl(FSMC_PCR(0)) | 0x04, FSMC_PCR(0));
  75
  76         return 0;
  77 }
  78
  79 /*
  80  * These partitions are the same as those used in the 2.6.20 release
  81  * shipped by the vendor; the first two partitions are mandated
  82  * by the boot ROM, and the bootloader area is somehow oversized...
  83  */
  84 static struct mtd_partition nhk8815_partitions[] = {
  85         {
  86                 .name   = "X-Loader(NAND)",
  87                 .offset = 0,
  88                 .size   = SZ_256K,
  89         }, {
  90                 .name   = "MemInit(NAND)",
  91                 .offset = MTDPART_OFS_APPEND,
  92                 .size   = SZ_256K,
  93         }, {
  94                 .name   = "BootLoader(NAND)",
  95                 .offset = MTDPART_OFS_APPEND,
  96                 .size   = SZ_2M,
  97         }, {
  98                 .name   = "Kernel zImage(NAND)",
  99                 .offset = MTDPART_OFS_APPEND,
 100                 .size   = 3 * SZ_1M,
 101         }, {
 102                 .name   = "Root Filesystem(NAND)",
 103                 .offset = MTDPART_OFS_APPEND,
 104                 .size   = 22 * SZ_1M,
 105         }, {
 106                 .name   = "User Filesystem(NAND)",
 107                 .offset = MTDPART_OFS_APPEND,
 108                 .size   = MTDPART_SIZ_FULL,
 109         }
 110 };
 111
 112 static struct nomadik_nand_platform_data nhk8815_nand_data = {
 113         .parts          = nhk8815_partitions,
 114         .nparts         = ARRAY_SIZE(nhk8815_partitions),
 115         .options        = NAND_COPYBACK | NAND_CACHEPRG | NAND_NO_PADDING,
 116         .init           = nhk8815_nand_init,
 117 };
 118
 119 static struct platform_device nhk8815_nand_device = {
 120         .name           = "nomadik_nand",
 121         .dev            = {
 122                 .platform_data = &nhk8815_nand_data,
 123         },
 124         .resource       = nhk8815_nand_resources,
 125         .num_resources  = ARRAY_SIZE(nhk8815_nand_resources),
 126 };
 127
 128 /* These are the partitions for the OneNand device, different from above */
 129 static struct mtd_partition nhk8815_onenand_partitions[] = {
 130         {
 131                 .name   = "X-Loader(OneNAND)",
 132                 .offset = 0,
 133                 .size   = SZ_256K,
 134         }, {
 135                 .name   = "MemInit(OneNAND)",
 136                 .offset = MTDPART_OFS_APPEND,
 137                 .size   = SZ_256K,
 138         }, {
 139                 .name   = "BootLoader(OneNAND)",
 140                 .offset = MTDPART_OFS_APPEND,
 141                 .size   = SZ_2M-SZ_256K,
 142         }, {
 143                 .name   = "SysImage(OneNAND)",
 144                 .offset = MTDPART_OFS_APPEND,
 145                 .size   = 4 * SZ_1M,
 146         }, {
 147                 .name   = "Root Filesystem(OneNAND)",
 148                 .offset = MTDPART_OFS_APPEND,
 149                 .size   = 22 * SZ_1M,
 150         }, {
 151                 .name   = "User Filesystem(OneNAND)",
 152                 .offset = MTDPART_OFS_APPEND,
 153                 .size   = MTDPART_SIZ_FULL,
 154         }
 155 };
 156
 157 static struct onenand_platform_data nhk8815_onenand_data = {
 158         .parts          = nhk8815_onenand_partitions,
 159         .nr_parts       = ARRAY_SIZE(nhk8815_onenand_partitions),
 160 };
 161
 162 static struct resource nhk8815_onenand_resource[] = {
 163         {
 164                 .start          = 0x30000000,
 165                 .end            = 0x30000000 + SZ_128K - 1,
 166                 .flags          = IORESOURCE_MEM,
 167         },
 168 };
 169
 170 static struct platform_device nhk8815_onenand_device = {
 171         .name           = "onenand-flash",
 172         .id             = -1,
 173         .dev            = {
 174                 .platform_data  = &nhk8815_onenand_data,
 175         },
 176         .resource       = nhk8815_onenand_resource,
 177         .num_resources  = ARRAY_SIZE(nhk8815_onenand_resource),
 178 };
 179
 180 static void __init nhk8815_onenand_init(void)
 181 {
 182 #ifdef CONFIG_MTD_ONENAND
 183        /* Set up SMCS0 for OneNand */
 184         writel(0x000030db, FSMC_BCR(0));
 185         writel(0x02100551, FSMC_BTR(0));
 186 #endif
 187 }
 188
 189 static struct mmci_platform_data mmcsd_plat_data = {
 190         .ocr_mask = MMC_VDD_29_30,
 191         .f_max = 48000000,
 192         .gpio_wp = -1,
 193         .gpio_cd = 111,
 194         .cd_invert = true,
 195         .capabilities = MMC_CAP_MMC_HIGHSPEED |
 196         MMC_CAP_SD_HIGHSPEED | MMC_CAP_4_BIT_DATA,
 197 };
 198
 199 static int __init nhk8815_mmcsd_init(void)
 200 {
 201         int ret;
 202
 203         ret = gpio_request(112, "card detect bias");
 204         if (ret)
 205                 return ret;
 206         gpio_direction_output(112, 0);
 207         amba_apb_device_add(NULL, "mmci", NOMADIK_SDI_BASE, SZ_4K, IRQ_SDMMC, 0, &mmcsd_plat_data, 0x10180180);
 208         return 0;
 209 }
 210 module_init(nhk8815_mmcsd_init);
 211
 212 static struct resource nhk8815_eth_resources[] = {
 213         {
 214                 .name = "smc91x-regs",
 215                 .start = 0x34000000 + 0x300,
 216                 .end = 0x34000000 + SZ_64K - 1,
 217                 .flags = IORESOURCE_MEM,
 218         }, {
 219                 .start = NOMADIK_GPIO_TO_IRQ(115),
 220                 .end = NOMADIK_GPIO_TO_IRQ(115),
 221                 .flags = IORESOURCE_IRQ | IRQF_TRIGGER_RISING,
 222         }
 223 };
 224
 225 static struct platform_device nhk8815_eth_device = {
 226         .name = "smc91x",
 227         .resource = nhk8815_eth_resources,
 228         .num_resources = ARRAY_SIZE(nhk8815_eth_resources),
 229 };
 230
 231 static int __init nhk8815_eth_init(void)
 232 {
 233         int gpio_nr = 115; /* hardwired in the board */
 234         int err;
 235
 236         err = gpio_request(gpio_nr, "eth_irq");
 237         if (!err) err = nmk_gpio_set_mode(gpio_nr, NMK_GPIO_ALT_GPIO);
 238         if (!err) err = gpio_direction_input(gpio_nr);
 239         if (err)
 240                 pr_err("Error %i in %s\n", err, __func__);
 241         return err;
 242 }
 243 device_initcall(nhk8815_eth_init);
 244
 245 static struct platform_device *nhk8815_platform_devices[] __initdata = {
 246         &nhk8815_nand_device,
 247         &nhk8815_onenand_device,
 248         &nhk8815_eth_device,
 249         /* will add more devices */
 250 };
 251
 252 static void __init nomadik_timer_init(void)
 253 {
 254         u32 src_cr;
 255
 256         /* Configure timer sources in "system reset controller" ctrl reg */
 257         src_cr = readl(io_p2v(NOMADIK_SRC_BASE));
 258         src_cr &= SRC_CR_INIT_MASK;
 259         src_cr |= SRC_CR_INIT_VAL;
 260         writel(src_cr, io_p2v(NOMADIK_SRC_BASE));
 261
 262         nmdk_timer_init(io_p2v(NOMADIK_MTU0_BASE));
 263 }
 264
 265 static struct sys_timer nomadik_timer = {
 266         .init   = nomadik_timer_init,
 267 };
 268
 269 static struct i2c_board_info __initdata nhk8815_i2c0_devices[] = {
 270         {
 271                 I2C_BOARD_INFO("stw4811", 0x2d),
 272         },
 273 };
 274
 275 static struct i2c_board_info __initdata nhk8815_i2c1_devices[] = {
 276         {
 277                 I2C_BOARD_INFO("camera", 0x10),
 278         },
 279         {
 280                 I2C_BOARD_INFO("stw5095", 0x1a),
 281         },
 282         {
 283                 I2C_BOARD_INFO("lis3lv02dl", 0x1d),
 284         },
 285 };
 286
 287 static struct i2c_board_info __initdata nhk8815_i2c2_devices[] = {
 288         {
 289                 I2C_BOARD_INFO("stw4811-usb", 0x2d),
 290         },
 291 };
 292
 293 static void __init nhk8815_platform_init(void)
 294 {
 295         cpu8815_platform_init();
 296         nhk8815_onenand_init();
 297         platform_add_devices(nhk8815_platform_devices,
 298                              ARRAY_SIZE(nhk8815_platform_devices));
 299
 300         amba_apb_device_add(NULL, "uart0", NOMADIK_UART0_BASE, SZ_4K, IRQ_UART0, 0, NULL, 0);
 301         amba_apb_device_add(NULL, "uart1", NOMADIK_UART1_BASE, SZ_4K, IRQ_UART1, 0, NULL, 0);
 302
 303         i2c_register_board_info(0, nhk8815_i2c0_devices,
 304                                 ARRAY_SIZE(nhk8815_i2c0_devices));
 305         i2c_register_board_info(1, nhk8815_i2c1_devices,
 306                                 ARRAY_SIZE(nhk8815_i2c1_devices));
 307         i2c_register_board_info(2, nhk8815_i2c2_devices,
 308                                 ARRAY_SIZE(nhk8815_i2c2_devices));
 309 }
 310
 311 MACHINE_START(NOMADIK, "NHK8815")
 312         /* Maintainer: ST MicroElectronics */
 313         .atag_offset    = 0x100,
 314         .map_io         = cpu8815_map_io,
 315         .init_irq       = cpu8815_init_irq,
 316         .handle_irq     = vic_handle_irq,
 317         .timer          = &nomadik_timer,
 318         .init_machine   = nhk8815_platform_init,
 319         .restart        = cpu8815_restart,
 320 MACHINE_END