release/src-rt-6.x.4708/linux/linux-2.6.36/arch/sh/boards/board-magicpanelr2.c

   1 /*
   2  * linux/arch/sh/boards/magicpanel/setup.c
   3  *
   4  *  Copyright (C) 2007  Markus Brunner, Mark Jonas
   5  *
   6  *  Magic Panel Release 2 board setup
   7  *
   8  * This file is subject to the terms and conditions of the GNU General Public
   9  * License.  See the file "COPYING" in the main directory of this archive
  10  * for more details.
  11  */
  12 #include <linux/init.h>
  13 #include <linux/irq.h>
  14 #include <linux/platform_device.h>
  15 #include <linux/delay.h>
  16 #include <linux/gpio.h>
  17 #include <linux/smsc911x.h>
  18 #include <linux/mtd/mtd.h>
  19 #include <linux/mtd/partitions.h>
  20 #include <linux/mtd/physmap.h>
  21 #include <linux/mtd/map.h>
  22 #include <mach/magicpanelr2.h>
  23 #include <asm/heartbeat.h>
  24 #include <cpu/sh7720.h>
  25
  26 #define LAN9115_READY   (__raw_readl(0xA8000084UL) & 0x00000001UL)
  27
  28 /* Prefer cmdline over RedBoot */
  29 static const char *probes[] = { "cmdlinepart", "RedBoot", NULL };
  30
  31 /* Wait until reset finished. Timeout is 100ms. */
  32 static int __init ethernet_reset_finished(void)
  33 {
  34         int i;
  35
  36         if (LAN9115_READY)
  37                 return 1;
  38
  39         for (i = 0; i < 10; ++i) {
  40                 mdelay(10);
  41                 if (LAN9115_READY)
  42                         return 1;
  43         }
  44
  45         return 0;
  46 }
  47
  48 static void __init reset_ethernet(void)
  49 {
  50         /* PMDR: LAN_RESET=on */
  51         CLRBITS_OUTB(0x10, PORT_PMDR);
  52
  53         udelay(200);
  54
  55         /* PMDR: LAN_RESET=off */
  56         SETBITS_OUTB(0x10, PORT_PMDR);
  57 }
  58
  59 static void __init setup_chip_select(void)
  60 {
  61         /* CS2: LAN (0x08000000 - 0x0bffffff) */
  62         /* no idle cycles, normal space, 8 bit data bus */
  63         __raw_writel(0x36db0400, CS2BCR);
  64         /* (SW:1.5 WR:3 HW:1.5), ext. wait */
  65         __raw_writel(0x000003c0, CS2WCR);
  66
  67         /* CS4: CAN1 (0xb0000000 - 0xb3ffffff) */
  68         /* no idle cycles, normal space, 8 bit data bus */
  69         __raw_writel(0x00000200, CS4BCR);
  70         /* (SW:1.5 WR:3 HW:1.5), ext. wait */
  71         __raw_writel(0x00100981, CS4WCR);
  72
  73         /* CS5a: CAN2 (0xb4000000 - 0xb5ffffff) */
  74         /* no idle cycles, normal space, 8 bit data bus */
  75         __raw_writel(0x00000200, CS5ABCR);
  76         /* (SW:1.5 WR:3 HW:1.5), ext. wait */
  77         __raw_writel(0x00100981, CS5AWCR);
  78
  79         /* CS5b: CAN3 (0xb6000000 - 0xb7ffffff) */
  80         /* no idle cycles, normal space, 8 bit data bus */
  81         __raw_writel(0x00000200, CS5BBCR);
  82         /* (SW:1.5 WR:3 HW:1.5), ext. wait */
  83         __raw_writel(0x00100981, CS5BWCR);
  84
  85         /* CS6a: Rotary (0xb8000000 - 0xb9ffffff) */
  86         /* no idle cycles, normal space, 8 bit data bus */
  87         __raw_writel(0x00000200, CS6ABCR);
  88         /* (SW:1.5 WR:3 HW:1.5), no ext. wait */
  89         __raw_writel(0x001009C1, CS6AWCR);
  90 }
  91
  92 static void __init setup_port_multiplexing(void)
  93 {
  94         /* A7 GPO(LED8);     A6 GPO(LED7);     A5 GPO(LED6);      A4 GPO(LED5);
  95          * A3 GPO(LED4);     A2 GPO(LED3);     A1 GPO(LED2);      A0 GPO(LED1);
  96          */
  97         __raw_writew(0x5555, PORT_PACR);        /* 01 01 01 01 01 01 01 01 */
  98
  99         /* B7 GPO(RST4);   B6 GPO(RST3);  B5 GPO(RST2);    B4 GPO(RST1);
 100          * B3 GPO(PB3);    B2 GPO(PB2);   B1 GPO(PB1);     B0 GPO(PB0);
 101          */
 102         __raw_writew(0x5555, PORT_PBCR);        /* 01 01 01 01 01 01 01 01 */
 103
 104         /* C7 GPO(PC7);   C6 GPO(PC6);    C5 GPO(PC5);     C4 GPO(PC4);
 105          * C3 LCD_DATA3;  C2 LCD_DATA2;   C1 LCD_DATA1;    C0 LCD_DATA0;
 106          */
 107         __raw_writew(0x5500, PORT_PCCR);        /* 01 01 01 01 00 00 00 00 */
 108
 109         /* D7 GPO(PD7); D6 GPO(PD6);    D5 GPO(PD5);       D4 GPO(PD4);
 110          * D3 GPO(PD3); D2 GPO(PD2);    D1 GPO(PD1);       D0 GPO(PD0);
 111          */
 112         __raw_writew(0x5555, PORT_PDCR);        /* 01 01 01 01 01 01 01 01 */
 113
 114         /* E7 (x);        E6 GPI(nu);    E5 GPI(nu);      E4 LCD_M_DISP;
 115          * E3 LCD_CL1;    E2 LCD_CL2;    E1 LCD_DON;      E0 LCD_FLM;
 116          */
 117         __raw_writew(0x3C00, PORT_PECR);        /* 00 11 11 00 00 00 00 00 */
 118
 119         /* F7 (x);           F6 DA1(VLCD);     F5 DA0(nc);        F4 AN3;
 120          * F3 AN2(MID_AD);   F2 AN1(EARTH_AD); F1 AN0(TEMP);      F0 GPI+(nc);
 121          */
 122         __raw_writew(0x0002, PORT_PFCR);        /* 00 00 00 00 00 00 00 10 */
 123
 124         /* G7 (x);        G6 IRQ5(TOUCH_BUSY); G5 IRQ4(TOUCH_IRQ); G4 GPI(KEY2);
 125          * G3 GPI(KEY1);  G2 GPO(LED11);        G1 GPO(LED10);     G0 GPO(LED9);
 126          */
 127         __raw_writew(0x03D5, PORT_PGCR);        /* 00 00 00 11 11 01 01 01 */
 128
 129         /* H7 (x);            H6 /RAS(BRAS);      H5 /CAS(BCAS); H4 CKE(BCKE);
 130          * H3 GPO(EARTH_OFF); H2 GPO(EARTH_TEST); H1 USB2_PWR;   H0 USB1_PWR;
 131          */
 132         __raw_writew(0x0050, PORT_PHCR);        /* 00 00 00 00 01 01 00 00 */
 133
 134         /* J7 (x);        J6 AUDCK;        J5 ASEBRKAK;     J4 AUDATA3;
 135          * J3 AUDATA2;    J2 AUDATA1;      J1 AUDATA0;      J0 AUDSYNC;
 136          */
 137         __raw_writew(0x0000, PORT_PJCR);        /* 00 00 00 00 00 00 00 00 */
 138
 139         /* K7 (x);          K6 (x);          K5 (x);       K4 (x);
 140          * K3 PINT7(/PWR2); K2 PINT6(/PWR1); K1 PINT5(nu); K0 PINT4(FLASH_READY)
 141          */
 142         __raw_writew(0x00FF, PORT_PKCR);        /* 00 00 00 00 11 11 11 11 */
 143
 144         /* L7 TRST;        L6 TMS;           L5 TDO;              L4 TDI;
 145          * L3 TCK;         L2 (x);           L1 (x);              L0 (x);
 146          */
 147         __raw_writew(0x0000, PORT_PLCR);        /* 00 00 00 00 00 00 00 00 */
 148
 149         /* M7 GPO(CURRENT_SINK);    M6 GPO(PWR_SWITCH);     M5 GPO(LAN_SPEED);
 150          * M4 GPO(LAN_RESET);       M3 GPO(BUZZER);         M2 GPO(LCD_BL);
 151          * M1 CS5B(CAN3_CS);        M0 GPI+(nc);
 152          */
 153         __raw_writew(0x5552, PORT_PMCR);           /* 01 01 01 01 01 01 00 10 */
 154
 155         /* CURRENT_SINK=off,    PWR_SWITCH=off, LAN_SPEED=100MBit,
 156          * LAN_RESET=off,       BUZZER=off,     LCD_BL=off
 157          */
 158 #if CONFIG_SH_MAGIC_PANEL_R2_VERSION == 2
 159         __raw_writeb(0x30, PORT_PMDR);
 160 #elif CONFIG_SH_MAGIC_PANEL_R2_VERSION == 3
 161         __raw_writeb(0xF0, PORT_PMDR);
 162 #else
 163 #error Unknown revision of PLATFORM_MP_R2
 164 #endif
 165
 166         /* P7 (x);             P6 (x);            P5 (x);
 167          * P4 GPO(nu);         P3 IRQ3(LAN_IRQ);  P2 IRQ2(CAN3_IRQ);
 168          * P1 IRQ1(CAN2_IRQ);  P0 IRQ0(CAN1_IRQ)
 169          */
 170         __raw_writew(0x0100, PORT_PPCR);        /* 00 00 00 01 00 00 00 00 */
 171         __raw_writeb(0x10, PORT_PPDR);
 172
 173         /* R7 A25;           R6 A24;         R5 A23;              R4 A22;
 174          * R3 A21;           R2 A20;         R1 A19;              R0 A0;
 175          */
 176         gpio_request(GPIO_FN_A25, NULL);
 177         gpio_request(GPIO_FN_A24, NULL);
 178         gpio_request(GPIO_FN_A23, NULL);
 179         gpio_request(GPIO_FN_A22, NULL);
 180         gpio_request(GPIO_FN_A21, NULL);
 181         gpio_request(GPIO_FN_A20, NULL);
 182         gpio_request(GPIO_FN_A19, NULL);
 183         gpio_request(GPIO_FN_A0, NULL);
 184
 185         /* S7 (x);              S6 (x);        S5 (x);       S4 GPO(EEPROM_CS2);
 186          * S3 GPO(EEPROM_CS1);  S2 SIOF0_TXD;  S1 SIOF0_RXD; S0 SIOF0_SCK;
 187          */
 188         __raw_writew(0x0140, PORT_PSCR);        /* 00 00 00 01 01 00 00 00 */
 189
 190         /* T7 (x);         T6 (x);        T5 (x);         T4 COM1_CTS;
 191          * T3 COM1_RTS;    T2 COM1_TXD;   T1 COM1_RXD;    T0 GPO(WDOG)
 192          */
 193         __raw_writew(0x0001, PORT_PTCR);        /* 00 00 00 00 00 00 00 01 */
 194
 195         /* U7 (x);           U6 (x);       U5 (x);        U4 GPI+(/AC_FAULT);
 196          * U3 GPO(TOUCH_CS); U2 TOUCH_TXD; U1 TOUCH_RXD;  U0 TOUCH_SCK;
 197          */
 198         __raw_writew(0x0240, PORT_PUCR);        /* 00 00 00 10 01 00 00 00 */
 199
 200         /* V7 (x);        V6 (x);       V5 (x);           V4 GPO(MID2);
 201          * V3 GPO(MID1);  V2 CARD_TxD;  V1 CARD_RxD;      V0 GPI+(/BAT_FAULT);
 202          */
 203         __raw_writew(0x0142, PORT_PVCR);        /* 00 00 00 01 01 00 00 10 */
 204 }
 205
 206 static void __init mpr2_setup(char **cmdline_p)
 207 {
 208         /* set Pin Select Register A:
 209          * /PCC_CD1, /PCC_CD2,  PCC_BVD1, PCC_BVD2,
 210          * /IOIS16,  IRQ4,      IRQ5,     USB1d_SUSPEND
 211          */
 212         __raw_writew(0xAABC, PORT_PSELA);
 213         /* set Pin Select Register B:
 214          * /SCIF0_RTS, /SCIF0_CTS, LCD_VCPWC,
 215          * LCD_VEPWC,  IIC_SDA,    IIC_SCL, Reserved
 216          */
 217         __raw_writew(0x3C00, PORT_PSELB);
 218         /* set Pin Select Register C:
 219          * SIOF1_SCK, SIOF1_RxD, SCIF1_RxD, SCIF1_TxD, Reserved
 220          */
 221         __raw_writew(0x0000, PORT_PSELC);
 222         /* set Pin Select Register D: Reserved, SIOF1_TxD, Reserved, SIOF1_MCLK,
 223          * Reserved, SIOF1_SYNC, Reserved, SCIF1_SCK, Reserved
 224          */
 225         __raw_writew(0x0000, PORT_PSELD);
 226         /* set USB TxRx Control: Reserved, DRV, Reserved, USB_TRANS, USB_SEL */
 227         __raw_writew(0x0101, PORT_UTRCTL);
 228         /* set USB Clock Control: USSCS, USSTB, Reserved (HighByte always A5) */
 229         __raw_writew(0xA5C0, PORT_UCLKCR_W);
 230
 231         setup_chip_select();
 232
 233         setup_port_multiplexing();
 234
 235         reset_ethernet();
 236
 237         printk(KERN_INFO "Magic Panel Release 2 A.%i\n",
 238                                 CONFIG_SH_MAGIC_PANEL_R2_VERSION);
 239
 240         if (ethernet_reset_finished() == 0)
 241                 printk(KERN_WARNING "Ethernet not ready\n");
 242 }
 243
 244 static struct resource smsc911x_resources[] = {
 245         [0] = {
 246                 .start          = 0xa8000000,
 247                 .end            = 0xabffffff,
 248                 .flags          = IORESOURCE_MEM,
 249         },
 250         [1] = {
 251                 .start          = 35,
 252                 .end            = 35,
 253                 .flags          = IORESOURCE_IRQ,
 254         },
 255 };
 256
 257 static struct smsc911x_platform_config smsc911x_config = {
 258         .phy_interface  = PHY_INTERFACE_MODE_MII,
 259         .irq_polarity   = SMSC911X_IRQ_POLARITY_ACTIVE_LOW,
 260         .irq_type       = SMSC911X_IRQ_TYPE_OPEN_DRAIN,
 261         .flags          = SMSC911X_USE_32BIT,
 262 };
 263
 264 static struct platform_device smsc911x_device = {
 265         .name           = "smsc911x",
 266         .id             = -1,
 267         .num_resources  = ARRAY_SIZE(smsc911x_resources),
 268         .resource       = smsc911x_resources,
 269         .dev = {
 270                 .platform_data = &smsc911x_config,
 271         },
 272 };
 273
 274 static struct resource heartbeat_resources[] = {
 275         [0] = {
 276                 .start  = PA_LED,
 277                 .end    = PA_LED,
 278                 .flags  = IORESOURCE_MEM,
 279         },
 280 };
 281
 282 static struct heartbeat_data heartbeat_data = {
 283         .flags          = HEARTBEAT_INVERTED,
 284 };
 285
 286 static struct platform_device heartbeat_device = {
 287         .name           = "heartbeat",
 288         .id             = -1,
 289         .dev    = {
 290                 .platform_data  = &heartbeat_data,
 291         },
 292         .num_resources  = ARRAY_SIZE(heartbeat_resources),
 293         .resource       = heartbeat_resources,
 294 };
 295
 296 static struct mtd_partition *parsed_partitions;
 297
 298 static struct mtd_partition mpr2_partitions[] = {
 299         /* Reserved for bootloader, read-only */
 300         {
 301                 .name = "Bootloader",
 302                 .offset = 0x00000000UL,
 303                 .size = MPR2_MTD_BOOTLOADER_SIZE,
 304                 .mask_flags = MTD_WRITEABLE,
 305         },
 306         /* Reserved for kernel image */
 307         {
 308                 .name = "Kernel",
 309                 .offset = MTDPART_OFS_NXTBLK,
 310                 .size = MPR2_MTD_KERNEL_SIZE,
 311         },
 312         /* Rest is used for Flash FS */
 313         {
 314                 .name = "Flash_FS",
 315                 .offset = MTDPART_OFS_NXTBLK,
 316                 .size = MTDPART_SIZ_FULL,
 317         }
 318 };
 319
 320 static struct physmap_flash_data flash_data = {
 321         .width          = 2,
 322 };
 323
 324 static struct resource flash_resource = {
 325         .start          = 0x00000000,
 326         .end            = 0x2000000UL,
 327         .flags          = IORESOURCE_MEM,
 328 };
 329
 330 static struct platform_device flash_device = {
 331         .name           = "physmap-flash",
 332         .id             = -1,
 333         .resource       = &flash_resource,
 334         .num_resources  = 1,
 335         .dev            = {
 336                 .platform_data = &flash_data,
 337         },
 338 };
 339
 340 static struct mtd_info *flash_mtd;
 341
 342 static struct map_info mpr2_flash_map = {
 343         .name = "Magic Panel R2 Flash",
 344         .size = 0x2000000UL,
 345         .bankwidth = 2,
 346 };
 347
 348 static void __init set_mtd_partitions(void)
 349 {
 350         int nr_parts = 0;
 351
 352         simple_map_init(&mpr2_flash_map);
 353         flash_mtd = do_map_probe("cfi_probe", &mpr2_flash_map);
 354         nr_parts = parse_mtd_partitions(flash_mtd, probes,
 355                                         &parsed_partitions, 0);
 356         /* If there is no partition table, used the hard coded table */
 357         if (nr_parts <= 0) {
 358                 flash_data.parts = mpr2_partitions;
 359                 flash_data.nr_parts = ARRAY_SIZE(mpr2_partitions);
 360         } else {
 361                 flash_data.nr_parts = nr_parts;
 362                 flash_data.parts = parsed_partitions;
 363         }
 364 }
 365
 366 /*
 367  * Add all resources to the platform_device
 368  */
 369
 370 static struct platform_device *mpr2_devices[] __initdata = {
 371         &heartbeat_device,
 372         &smsc911x_device,
 373         &flash_device,
 374 };
 375
 376
 377 static int __init mpr2_devices_setup(void)
 378 {
 379         set_mtd_partitions();
 380         return platform_add_devices(mpr2_devices, ARRAY_SIZE(mpr2_devices));
 381 }
 382 device_initcall(mpr2_devices_setup);
 383
 384 /*
 385  * Initialize IRQ setting
 386  */
 387 static void __init init_mpr2_IRQ(void)
 388 {
 389         plat_irq_setup_pins(IRQ_MODE_IRQ); /* install handlers for IRQ0-5 */
 390
 391         set_irq_type(32, IRQ_TYPE_LEVEL_LOW);    /* IRQ0 CAN1 */
 392         set_irq_type(33, IRQ_TYPE_LEVEL_LOW);    /* IRQ1 CAN2 */
 393         set_irq_type(34, IRQ_TYPE_LEVEL_LOW);    /* IRQ2 CAN3 */
 394         set_irq_type(35, IRQ_TYPE_LEVEL_LOW);    /* IRQ3 SMSC9115 */
 395         set_irq_type(36, IRQ_TYPE_EDGE_RISING);  /* IRQ4 touchscreen */
 396         set_irq_type(37, IRQ_TYPE_EDGE_FALLING); /* IRQ5 touchscreen */
 397
 398         intc_set_priority(32, 13);              /* IRQ0 CAN1 */
 399         intc_set_priority(33, 13);              /* IRQ0 CAN2 */
 400         intc_set_priority(34, 13);              /* IRQ0 CAN3 */
 401         intc_set_priority(35, 6);               /* IRQ3 SMSC9115 */
 402 }
 403
 404 /*
 405  * The Machine Vector
 406  */
 407
 408 static struct sh_machine_vector mv_mpr2 __initmv = {
 409         .mv_name                = "mpr2",
 410         .mv_setup               = mpr2_setup,
 411         .mv_init_irq            = init_mpr2_IRQ,
 412 };