arch/arm/mach-shmobile/board-ap4evb.c

   1 /*
   2  * AP4EVB board support
   3  *
   4  * Copyright (C) 2010  Magnus Damm
   5  * Copyright (C) 2008  Yoshihiro Shimoda
   6  *
   7  * This program is free software; you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License as published by
   9  * the Free Software Foundation; version 2 of the License.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  19  */
  20 #include <linux/kernel.h>
  21 #include <linux/init.h>
  22 #include <linux/interrupt.h>
  23 #include <linux/irq.h>
  24 #include <linux/platform_device.h>
  25 #include <linux/delay.h>
  26 #include <linux/mtd/mtd.h>
  27 #include <linux/mtd/partitions.h>
  28 #include <linux/mtd/physmap.h>
  29 #include <linux/io.h>
  30 #include <linux/smsc911x.h>
  31 #include <linux/gpio.h>
  32 #include <linux/input.h>
  33 #include <linux/input/sh_keysc.h>
  34 #include <mach/common.h>
  35 #include <mach/sh7372.h>
  36 #include <asm/mach-types.h>
  37 #include <asm/mach/arch.h>
  38 #include <asm/mach/map.h>
  39
  40 /*
  41  * Address      Interface               BusWidth        note
  42  * ------------------------------------------------------------------
  43  * 0x0000_0000  NOR Flash ROM (MCP)     16bit           SW7 : bit1 = ON
  44  * 0x0800_0000  user area               -
  45  * 0x1000_0000  NOR Flash ROM (MCP)     16bit           SW7 : bit1 = OFF
  46  * 0x1400_0000  Ether (LAN9220)         16bit
  47  * 0x1600_0000  user area               -               cannot use with NAND
  48  * 0x1800_0000  user area               -
  49  * 0x1A00_0000  -
  50  * 0x4000_0000  LPDDR2-SDRAM (POP)      32bit
  51  */
  52
  53 /*
  54  * NOR Flash ROM
  55  *
  56  *  SW1  |     SW2    | SW7  | NOR Flash ROM
  57  *  bit1 | bit1  bit2 | bit1 | Memory allocation
  58  * ------+------------+------+------------------
  59  *  OFF  | ON     OFF | ON   |    Area 0
  60  *  OFF  | ON     OFF | OFF  |    Area 4
  61  */
  62
  63 /*
  64  * NAND Flash ROM
  65  *
  66  *  SW1  |     SW2    | SW7  | NAND Flash ROM
  67  *  bit1 | bit1  bit2 | bit2 | Memory allocation
  68  * ------+------------+------+------------------
  69  *  OFF  | ON     OFF | ON   |    FCE 0
  70  *  OFF  | ON     OFF | OFF  |    FCE 1
  71  */
  72
  73 /*
  74  * SMSC 9220
  75  *
  76  *  SW1         SMSC 9220
  77  * -----------------------
  78  *  ON          access disable
  79  *  OFF         access enable
  80  */
  81
  82 /*
  83  * KEYSC
  84  *
  85  * SW43         KEYSC
  86  * -------------------------
  87  * ON           enable
  88  * OFF          disable
  89  */
  90
  91 /* MTD */
  92 static struct mtd_partition nor_flash_partitions[] = {
  93         {
  94                 .name           = "loader",
  95                 .offset         = 0x00000000,
  96                 .size           = 512 * 1024,
  97         },
  98         {
  99                 .name           = "bootenv",
 100                 .offset         = MTDPART_OFS_APPEND,
 101                 .size           = 512 * 1024,
 102         },
 103         {
 104                 .name           = "kernel_ro",
 105                 .offset         = MTDPART_OFS_APPEND,
 106                 .size           = 8 * 1024 * 1024,
 107                 .mask_flags     = MTD_WRITEABLE,
 108         },
 109         {
 110                 .name           = "kernel",
 111                 .offset         = MTDPART_OFS_APPEND,
 112                 .size           = 8 * 1024 * 1024,
 113         },
 114         {
 115                 .name           = "data",
 116                 .offset         = MTDPART_OFS_APPEND,
 117                 .size           = MTDPART_SIZ_FULL,
 118         },
 119 };
 120
 121 static struct physmap_flash_data nor_flash_data = {
 122         .width          = 2,
 123         .parts          = nor_flash_partitions,
 124         .nr_parts       = ARRAY_SIZE(nor_flash_partitions),
 125 };
 126
 127 static struct resource nor_flash_resources[] = {
 128         [0]     = {
 129                 .start  = 0x00000000,
 130                 .end    = 0x08000000 - 1,
 131                 .flags  = IORESOURCE_MEM,
 132         }
 133 };
 134
 135 static struct platform_device nor_flash_device = {
 136         .name           = "physmap-flash",
 137         .dev            = {
 138                 .platform_data  = &nor_flash_data,
 139         },
 140         .num_resources  = ARRAY_SIZE(nor_flash_resources),
 141         .resource       = nor_flash_resources,
 142 };
 143
 144 /* SMSC 9220 */
 145 static struct resource smc911x_resources[] = {
 146         {
 147                 .start  = 0x14000000,
 148                 .end    = 0x16000000 - 1,
 149                 .flags  = IORESOURCE_MEM,
 150         }, {
 151                 .start  = 6,
 152                 .flags  = IORESOURCE_IRQ | IORESOURCE_IRQ_LOWLEVEL,
 153         },
 154 };
 155
 156 static struct smsc911x_platform_config smsc911x_info = {
 157         .flags          = SMSC911X_USE_16BIT | SMSC911X_SAVE_MAC_ADDRESS,
 158         .irq_polarity   = SMSC911X_IRQ_POLARITY_ACTIVE_LOW,
 159         .irq_type       = SMSC911X_IRQ_TYPE_PUSH_PULL,
 160 };
 161
 162 static struct platform_device smc911x_device = {
 163         .name           = "smsc911x",
 164         .id             = -1,
 165         .num_resources  = ARRAY_SIZE(smc911x_resources),
 166         .resource       = smc911x_resources,
 167         .dev            = {
 168                 .platform_data = &smsc911x_info,
 169         },
 170 };
 171
 172 /* KEYSC (Needs SW43 set to ON) */
 173 static struct sh_keysc_info keysc_info = {
 174         .mode           = SH_KEYSC_MODE_1,
 175         .scan_timing    = 3,
 176         .delay          = 2500,
 177         .keycodes = {
 178                 KEY_0, KEY_1, KEY_2, KEY_3, KEY_4,
 179                 KEY_5, KEY_6, KEY_7, KEY_8, KEY_9,
 180                 KEY_A, KEY_B, KEY_C, KEY_D, KEY_E,
 181                 KEY_F, KEY_G, KEY_H, KEY_I, KEY_J,
 182                 KEY_K, KEY_L, KEY_M, KEY_N, KEY_O,
 183         },
 184 };
 185
 186 static struct resource keysc_resources[] = {
 187         [0] = {
 188                 .name   = "KEYSC",
 189                 .start  = 0xe61b0000,
 190                 .end    = 0xe61b0063,
 191                 .flags  = IORESOURCE_MEM,
 192         },
 193         [1] = {
 194                 .start  = 79,
 195                 .flags  = IORESOURCE_IRQ,
 196         },
 197 };
 198
 199 static struct platform_device keysc_device = {
 200         .name           = "sh_keysc",
 201         .id             = 0, /* "keysc0" clock */
 202         .num_resources  = ARRAY_SIZE(keysc_resources),
 203         .resource       = keysc_resources,
 204         .dev    = {
 205                 .platform_data  = &keysc_info,
 206         },
 207 };
 208
 209 /* SDHI0 */
 210 static struct resource sdhi0_resources[] = {
 211         [0] = {
 212                 .name   = "SDHI0",
 213                 .start  = 0xe6850000,
 214                 .end    = 0xe68501ff,
 215                 .flags  = IORESOURCE_MEM,
 216         },
 217         [1] = {
 218                 .start  = 96,
 219                 .flags  = IORESOURCE_IRQ,
 220         },
 221 };
 222
 223 static struct platform_device sdhi0_device = {
 224         .name           = "sh_mobile_sdhi",
 225         .num_resources  = ARRAY_SIZE(sdhi0_resources),
 226         .resource       = sdhi0_resources,
 227         .id             = 0,
 228 };
 229
 230 static struct platform_device *ap4evb_devices[] __initdata = {
 231         &nor_flash_device,
 232         &smc911x_device,
 233         &keysc_device,
 234         &sdhi0_device,
 235 };
 236
 237 static struct map_desc ap4evb_io_desc[] __initdata = {
 238         /* create a 1:1 entity map for 0xe6xxxxxx
 239          * used by CPGA, INTC and PFC.
 240          */
 241         {
 242                 .virtual        = 0xe6000000,
 243                 .pfn            = __phys_to_pfn(0xe6000000),
 244                 .length         = 256 << 20,
 245                 .type           = MT_DEVICE_NONSHARED
 246         },
 247 };
 248
 249 static void __init ap4evb_map_io(void)
 250 {
 251         iotable_init(ap4evb_io_desc, ARRAY_SIZE(ap4evb_io_desc));
 252
 253         /* setup early devices, clocks and console here as well */
 254         sh7372_add_early_devices();
 255         sh7367_clock_init(); /* use g3 clocks for now */
 256         shmobile_setup_console();
 257 }
 258
 259 static void __init ap4evb_init(void)
 260 {
 261         sh7372_pinmux_init();
 262
 263         /* enable SCIFA0 */
 264         gpio_request(GPIO_FN_SCIFA0_TXD, NULL);
 265         gpio_request(GPIO_FN_SCIFA0_RXD, NULL);
 266
 267         /* enable SMSC911X */
 268         gpio_request(GPIO_FN_CS5A,      NULL);
 269         gpio_request(GPIO_FN_IRQ6_39,   NULL);
 270
 271         /* enable LED 1 - 4 */
 272         gpio_request(GPIO_PORT185, NULL);
 273         gpio_request(GPIO_PORT186, NULL);
 274         gpio_request(GPIO_PORT187, NULL);
 275         gpio_request(GPIO_PORT188, NULL);
 276         gpio_direction_output(GPIO_PORT185, 1);
 277         gpio_direction_output(GPIO_PORT186, 1);
 278         gpio_direction_output(GPIO_PORT187, 1);
 279         gpio_direction_output(GPIO_PORT188, 1);
 280         gpio_export(GPIO_PORT185, 0);
 281         gpio_export(GPIO_PORT186, 0);
 282         gpio_export(GPIO_PORT187, 0);
 283         gpio_export(GPIO_PORT188, 0);
 284
 285         /* enable Debug switch (S6) */
 286         gpio_request(GPIO_PORT32, NULL);
 287         gpio_request(GPIO_PORT33, NULL);
 288         gpio_request(GPIO_PORT34, NULL);
 289         gpio_request(GPIO_PORT35, NULL);
 290         gpio_direction_input(GPIO_PORT32);
 291         gpio_direction_input(GPIO_PORT33);
 292         gpio_direction_input(GPIO_PORT34);
 293         gpio_direction_input(GPIO_PORT35);
 294         gpio_export(GPIO_PORT32, 0);
 295         gpio_export(GPIO_PORT33, 0);
 296         gpio_export(GPIO_PORT34, 0);
 297         gpio_export(GPIO_PORT35, 0);
 298
 299         /* enable KEYSC */
 300         gpio_request(GPIO_FN_KEYOUT0, NULL);
 301         gpio_request(GPIO_FN_KEYOUT1, NULL);
 302         gpio_request(GPIO_FN_KEYOUT2, NULL);
 303         gpio_request(GPIO_FN_KEYOUT3, NULL);
 304         gpio_request(GPIO_FN_KEYOUT4, NULL);
 305         gpio_request(GPIO_FN_KEYIN0_136, NULL);
 306         gpio_request(GPIO_FN_KEYIN1_135, NULL);
 307         gpio_request(GPIO_FN_KEYIN2_134, NULL);
 308         gpio_request(GPIO_FN_KEYIN3_133, NULL);
 309         gpio_request(GPIO_FN_KEYIN4,     NULL);
 310
 311         /* SDHI0 */
 312         gpio_request(GPIO_FN_SDHICD0, NULL);
 313         gpio_request(GPIO_FN_SDHIWP0, NULL);
 314         gpio_request(GPIO_FN_SDHICMD0, NULL);
 315         gpio_request(GPIO_FN_SDHICLK0, NULL);
 316         gpio_request(GPIO_FN_SDHID0_3, NULL);
 317         gpio_request(GPIO_FN_SDHID0_2, NULL);
 318         gpio_request(GPIO_FN_SDHID0_1, NULL);
 319         gpio_request(GPIO_FN_SDHID0_0, NULL);
 320
 321         sh7372_add_standard_devices();
 322
 323         platform_add_devices(ap4evb_devices, ARRAY_SIZE(ap4evb_devices));
 324 }
 325
 326 MACHINE_START(AP4EVB, "ap4evb")
 327         .phys_io        = 0xe6000000,
 328         .io_pg_offst    = ((0xe6000000) >> 18) & 0xfffc,
 329         .map_io         = ap4evb_map_io,
 330         .init_irq       = sh7372_init_irq,
 331         .init_machine   = ap4evb_init,
 332         .timer          = &shmobile_timer,
 333 MACHINE_END