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/mtd/mtd.h>
  17 #include <linux/mtd/partitions.h>
  18 #include <linux/mtd/physmap.h>
  19 #include <linux/mtd/map.h>
  20 #include <asm/magicpanelr2.h>
  21 #include <asm/heartbeat.h>
  22
  23 #define LAN9115_READY   (ctrl_inl(0xA8000084UL) & 0x00000001UL)
  24
  25 /* Prefer cmdline over RedBoot */
  26 static const char *probes[] = { "cmdlinepart", "RedBoot", NULL };
  27
  28 /* Wait until reset finished. Timeout is 100ms. */
  29 static int __init ethernet_reset_finished(void)
  30 {
  31         int i;
  32
  33         if (LAN9115_READY)
  34                 return 1;
  35
  36         for (i = 0; i < 10; ++i) {
  37                 mdelay(10);
  38                 if (LAN9115_READY)
  39                         return 1;
  40         }
  41
  42         return 0;
  43 }
  44
  45 static void __init reset_ethernet(void)
  46 {
  47         /* PMDR: LAN_RESET=on */
  48         CLRBITS_OUTB(0x10, PORT_PMDR);
  49
  50         udelay(200);
  51
  52         /* PMDR: LAN_RESET=off */
  53         SETBITS_OUTB(0x10, PORT_PMDR);
  54 }
  55
  56 static void __init setup_chip_select(void)
  57 {
  58         /* CS2: LAN (0x08000000 - 0x0bffffff) */
  59         /* no idle cycles, normal space, 8 bit data bus */
  60         ctrl_outl(0x36db0400, CS2BCR);
  61         /* (SW:1.5 WR:3 HW:1.5), ext. wait */
  62         ctrl_outl(0x000003c0, CS2WCR);
  63
  64         /* CS4: CAN1 (0xb0000000 - 0xb3ffffff) */
  65         /* no idle cycles, normal space, 8 bit data bus */
  66         ctrl_outl(0x00000200, CS4BCR);
  67         /* (SW:1.5 WR:3 HW:1.5), ext. wait */
  68         ctrl_outl(0x00100981, CS4WCR);
  69
  70         /* CS5a: CAN2 (0xb4000000 - 0xb5ffffff) */
  71         /* no idle cycles, normal space, 8 bit data bus */
  72         ctrl_outl(0x00000200, CS5ABCR);
  73         /* (SW:1.5 WR:3 HW:1.5), ext. wait */
  74         ctrl_outl(0x00100981, CS5AWCR);
  75
  76         /* CS5b: CAN3 (0xb6000000 - 0xb7ffffff) */
  77         /* no idle cycles, normal space, 8 bit data bus */
  78         ctrl_outl(0x00000200, CS5BBCR);
  79         /* (SW:1.5 WR:3 HW:1.5), ext. wait */
  80         ctrl_outl(0x00100981, CS5BWCR);
  81
  82         /* CS6a: Rotary (0xb8000000 - 0xb9ffffff) */
  83         /* no idle cycles, normal space, 8 bit data bus */
  84         ctrl_outl(0x00000200, CS6ABCR);
  85         /* (SW:1.5 WR:3 HW:1.5), no ext. wait */
  86         ctrl_outl(0x001009C1, CS6AWCR);
  87 }
  88
  89 static void __init setup_port_multiplexing(void)
  90 {
  91         /* A7 GPO(LED8);     A6 GPO(LED7);     A5 GPO(LED6);      A4 GPO(LED5);
  92          * A3 GPO(LED4);     A2 GPO(LED3);     A1 GPO(LED2);      A0 GPO(LED1);
  93          */
  94         ctrl_outw(0x5555, PORT_PACR);   /* 01 01 01 01 01 01 01 01 */
  95
  96         /* B7 GPO(RST4);   B6 GPO(RST3);  B5 GPO(RST2);    B4 GPO(RST1);
  97          * B3 GPO(PB3);    B2 GPO(PB2);   B1 GPO(PB1);     B0 GPO(PB0);
  98          */
  99         ctrl_outw(0x5555, PORT_PBCR);   /* 01 01 01 01 01 01 01 01 */
 100
 101         /* C7 GPO(PC7);   C6 GPO(PC6);    C5 GPO(PC5);     C4 GPO(PC4);
 102          * C3 LCD_DATA3;  C2 LCD_DATA2;   C1 LCD_DATA1;    C0 LCD_DATA0;
 103          */
 104         ctrl_outw(0x5500, PORT_PCCR);   /* 01 01 01 01 00 00 00 00 */
 105
 106         /* D7 GPO(PD7); D6 GPO(PD6);    D5 GPO(PD5);       D4 GPO(PD4);
 107          * D3 GPO(PD3); D2 GPO(PD2);    D1 GPO(PD1);       D0 GPO(PD0);
 108          */
 109         ctrl_outw(0x5555, PORT_PDCR);   /* 01 01 01 01 01 01 01 01 */
 110
 111         /* E7 (x);        E6 GPI(nu);    E5 GPI(nu);      E4 LCD_M_DISP;
 112          * E3 LCD_CL1;    E2 LCD_CL2;    E1 LCD_DON;      E0 LCD_FLM;
 113          */
 114         ctrl_outw(0x3C00, PORT_PECR);   /* 00 11 11 00 00 00 00 00 */
 115
 116         /* F7 (x);           F6 DA1(VLCD);     F5 DA0(nc);        F4 AN3;
 117          * F3 AN2(MID_AD);   F2 AN1(EARTH_AD); F1 AN0(TEMP);      F0 GPI+(nc);
 118          */
 119         ctrl_outw(0x0002, PORT_PFCR);   /* 00 00 00 00 00 00 00 10 */
 120
 121         /* G7 (x);        G6 IRQ5(TOUCH_BUSY); G5 IRQ4(TOUCH_IRQ); G4 GPI(KEY2);
 122          * G3 GPI(KEY1);  G2 GPO(LED11);        G1 GPO(LED10);     G0 GPO(LED9);
 123          */
 124         ctrl_outw(0x03D5, PORT_PGCR);   /* 00 00 00 11 11 01 01 01 */
 125
 126         /* H7 (x);            H6 /RAS(BRAS);      H5 /CAS(BCAS); H4 CKE(BCKE);
 127          * H3 GPO(EARTH_OFF); H2 GPO(EARTH_TEST); H1 USB2_PWR;   H0 USB1_PWR;
 128          */
 129         ctrl_outw(0x0050, PORT_PHCR);   /* 00 00 00 00 01 01 00 00 */
 130
 131         /* J7 (x);        J6 AUDCK;        J5 ASEBRKAK;     J4 AUDATA3;
 132          * J3 AUDATA2;    J2 AUDATA1;      J1 AUDATA0;      J0 AUDSYNC;
 133          */
 134         ctrl_outw(0x0000, PORT_PJCR);   /* 00 00 00 00 00 00 00 00 */
 135
 136         /* K7 (x);          K6 (x);          K5 (x);       K4 (x);
 137          * K3 PINT7(/PWR2); K2 PINT6(/PWR1); K1 PINT5(nu); K0 PINT4(FLASH_READY)
 138          */
 139         ctrl_outw(0x00FF, PORT_PKCR);   /* 00 00 00 00 11 11 11 11 */
 140
 141         /* L7 TRST;        L6 TMS;           L5 TDO;              L4 TDI;
 142          * L3 TCK;         L2 (x);           L1 (x);              L0 (x);
 143          */
 144         ctrl_outw(0x0000, PORT_PLCR);   /* 00 00 00 00 00 00 00 00 */
 145
 146         /* M7 GPO(CURRENT_SINK);    M6 GPO(PWR_SWITCH);     M5 GPO(LAN_SPEED);
 147          * M4 GPO(LAN_RESET);       M3 GPO(BUZZER);         M2 GPO(LCD_BL);
 148          * M1 CS5B(CAN3_CS);        M0 GPI+(nc);
 149          */
 150         ctrl_outw(0x5552, PORT_PMCR);      /* 01 01 01 01 01 01 00 10 */
 151
 152         /* CURRENT_SINK=off,    PWR_SWITCH=off, LAN_SPEED=100MBit,
 153          * LAN_RESET=off,       BUZZER=off,     LCD_BL=off
 154          */
 155 #if CONFIG_SH_MAGIC_PANEL_R2_VERSION == 2
 156         ctrl_outb(0x30, PORT_PMDR);
 157 #elif CONFIG_SH_MAGIC_PANEL_R2_VERSION == 3
 158         ctrl_outb(0xF0, PORT_PMDR);
 159 #else
 160 #error Unknown revision of PLATFORM_MP_R2
 161 #endif
 162
 163         /* P7 (x);             P6 (x);            P5 (x);
 164          * P4 GPO(nu);         P3 IRQ3(LAN_IRQ);  P2 IRQ2(CAN3_IRQ);
 165          * P1 IRQ1(CAN2_IRQ);  P0 IRQ0(CAN1_IRQ)
 166          */
 167         ctrl_outw(0x0100, PORT_PPCR);   /* 00 00 00 01 00 00 00 00 */
 168         ctrl_outb(0x10, PORT_PPDR);
 169
 170         /* R7 A25;           R6 A24;         R5 A23;              R4 A22;
 171          * R3 A21;           R2 A20;         R1 A19;              R0 A0;
 172          */
 173         ctrl_outw(0x0000, PORT_PRCR);   /* 00 00 00 00 00 00 00 00 */
 174
 175         /* S7 (x);              S6 (x);        S5 (x);       S4 GPO(EEPROM_CS2);
 176          * S3 GPO(EEPROM_CS1);  S2 SIOF0_TXD;  S1 SIOF0_RXD; S0 SIOF0_SCK;
 177          */
 178         ctrl_outw(0x0140, PORT_PSCR);   /* 00 00 00 01 01 00 00 00 */
 179
 180         /* T7 (x);         T6 (x);        T5 (x);         T4 COM1_CTS;
 181          * T3 COM1_RTS;    T2 COM1_TXD;   T1 COM1_RXD;    T0 GPO(WDOG)
 182          */
 183         ctrl_outw(0x0001, PORT_PTCR);   /* 00 00 00 00 00 00 00 01 */
 184
 185         /* U7 (x);           U6 (x);       U5 (x);        U4 GPI+(/AC_FAULT);
 186          * U3 GPO(TOUCH_CS); U2 TOUCH_TXD; U1 TOUCH_RXD;  U0 TOUCH_SCK;
 187          */
 188         ctrl_outw(0x0240, PORT_PUCR);   /* 00 00 00 10 01 00 00 00 */
 189
 190         /* V7 (x);        V6 (x);       V5 (x);           V4 GPO(MID2);
 191          * V3 GPO(MID1);  V2 CARD_TxD;  V1 CARD_RxD;      V0 GPI+(/BAT_FAULT);
 192          */
 193         ctrl_outw(0x0142, PORT_PVCR);   /* 00 00 00 01 01 00 00 10 */
 194 }
 195
 196 static void __init mpr2_setup(char **cmdline_p)
 197 {
 198         __set_io_port_base(0xa0000000);
 199
 200         /* set Pin Select Register A:
 201          * /PCC_CD1, /PCC_CD2,  PCC_BVD1, PCC_BVD2,
 202          * /IOIS16,  IRQ4,      IRQ5,     USB1d_SUSPEND
 203          */
 204         ctrl_outw(0xAABC, PORT_PSELA);
 205         /* set Pin Select Register B:
 206          * /SCIF0_RTS, /SCIF0_CTS, LCD_VCPWC,
 207          * LCD_VEPWC,  IIC_SDA,    IIC_SCL, Reserved
 208          */
 209         ctrl_outw(0x3C00, PORT_PSELB);
 210         /* set Pin Select Register C:
 211          * SIOF1_SCK, SIOF1_RxD, SCIF1_RxD, SCIF1_TxD, Reserved
 212          */
 213         ctrl_outw(0x0000, PORT_PSELC);
 214         /* set Pin Select Register D: Reserved, SIOF1_TxD, Reserved, SIOF1_MCLK,
 215          * Reserved, SIOF1_SYNC, Reserved, SCIF1_SCK, Reserved
 216          */
 217         ctrl_outw(0x0000, PORT_PSELD);
 218         /* set USB TxRx Control: Reserved, DRV, Reserved, USB_TRANS, USB_SEL */
 219         ctrl_outw(0x0101, PORT_UTRCTL);
 220         /* set USB Clock Control: USSCS, USSTB, Reserved (HighByte always A5) */
 221         ctrl_outw(0xA5C0, PORT_UCLKCR_W);
 222
 223         setup_chip_select();
 224
 225         setup_port_multiplexing();
 226
 227         reset_ethernet();
 228
 229         printk(KERN_INFO "Magic Panel Release 2 A.%i\n",
 230                                 CONFIG_SH_MAGIC_PANEL_R2_VERSION);
 231
 232         if (ethernet_reset_finished() == 0)
 233                 printk(KERN_WARNING "Ethernet not ready\n");
 234 }
 235
 236 static struct resource smc911x_resources[] = {
 237         [0] = {
 238                 .start          = 0xa8000000,
 239                 .end            = 0xabffffff,
 240                 .flags          = IORESOURCE_MEM,
 241         },
 242         [1] = {
 243                 .start          = 35,
 244                 .end            = 35,
 245                 .flags          = IORESOURCE_IRQ,
 246         },
 247 };
 248
 249 static struct platform_device smc911x_device = {
 250         .name           = "smc911x",
 251         .id             = -1,
 252         .num_resources  = ARRAY_SIZE(smc911x_resources),
 253         .resource       = smc911x_resources,
 254 };
 255
 256 static struct resource heartbeat_resources[] = {
 257         [0] = {
 258                 .start  = PA_LED,
 259                 .end    = PA_LED,
 260                 .flags  = IORESOURCE_MEM,
 261         },
 262 };
 263
 264 static struct heartbeat_data heartbeat_data = {
 265         .flags          = HEARTBEAT_INVERTED,
 266 };
 267
 268 static struct platform_device heartbeat_device = {
 269         .name           = "heartbeat",
 270         .id             = -1,
 271         .dev    = {
 272                 .platform_data  = &heartbeat_data,
 273         },
 274         .num_resources  = ARRAY_SIZE(heartbeat_resources),
 275         .resource       = heartbeat_resources,
 276 };
 277
 278 static struct mtd_partition *parsed_partitions;
 279
 280 static struct mtd_partition mpr2_partitions[] = {
 281         /* Reserved for bootloader, read-only */
 282         {
 283                 .name = "Bootloader",
 284                 .offset = 0x00000000UL,
 285                 .size = MPR2_MTD_BOOTLOADER_SIZE,
 286                 .mask_flags = MTD_WRITEABLE,
 287         },
 288         /* Reserved for kernel image */
 289         {
 290                 .name = "Kernel",
 291                 .offset = MTDPART_OFS_NXTBLK,
 292                 .size = MPR2_MTD_KERNEL_SIZE,
 293         },
 294         /* Rest is used for Flash FS */
 295         {
 296                 .name = "Flash_FS",
 297                 .offset = MTDPART_OFS_NXTBLK,
 298                 .size = MTDPART_SIZ_FULL,
 299         }
 300 };
 301
 302 static struct physmap_flash_data flash_data = {
 303         .width          = 2,
 304 };
 305
 306 static struct resource flash_resource = {
 307         .start          = 0x00000000,
 308         .end            = 0x2000000UL,
 309         .flags          = IORESOURCE_MEM,
 310 };
 311
 312 static struct platform_device flash_device = {
 313         .name           = "physmap-flash",
 314         .id             = -1,
 315         .resource       = &flash_resource,
 316         .num_resources  = 1,
 317         .dev            = {
 318                 .platform_data = &flash_data,
 319         },
 320 };
 321
 322 static struct mtd_info *flash_mtd;
 323
 324 static struct map_info mpr2_flash_map = {
 325         .name = "Magic Panel R2 Flash",
 326         .size = 0x2000000UL,
 327         .bankwidth = 2,
 328 };
 329
 330 static void __init set_mtd_partitions(void)
 331 {
 332         int nr_parts = 0;
 333
 334         simple_map_init(&mpr2_flash_map);
 335         flash_mtd = do_map_probe("cfi_probe", &mpr2_flash_map);
 336         nr_parts = parse_mtd_partitions(flash_mtd, probes,
 337                                         &parsed_partitions, 0);
 338         /* If there is no partition table, used the hard coded table */
 339         if (nr_parts <= 0) {
 340                 flash_data.parts = mpr2_partitions;
 341                 flash_data.nr_parts = ARRAY_SIZE(mpr2_partitions);
 342         } else {
 343                 flash_data.nr_parts = nr_parts;
 344                 flash_data.parts = parsed_partitions;
 345         }
 346 }
 347
 348 /*
 349  * Add all resources to the platform_device
 350  */
 351
 352 static struct platform_device *mpr2_devices[] __initdata = {
 353         &heartbeat_device,
 354         &smc911x_device,
 355         &flash_device,
 356 };
 357
 358
 359 static int __init mpr2_devices_setup(void)
 360 {
 361         set_mtd_partitions();
 362         return platform_add_devices(mpr2_devices, ARRAY_SIZE(mpr2_devices));
 363 }
 364 device_initcall(mpr2_devices_setup);
 365
 366 /*
 367  * Initialize IRQ setting
 368  */
 369 static void __init init_mpr2_IRQ(void)
 370 {
 371         plat_irq_setup_pins(IRQ_MODE_IRQ); /* install handlers for IRQ0-5 */
 372
 373         set_irq_type(32, IRQ_TYPE_LEVEL_LOW);    /* IRQ0 CAN1 */
 374         set_irq_type(33, IRQ_TYPE_LEVEL_LOW);    /* IRQ1 CAN2 */
 375         set_irq_type(34, IRQ_TYPE_LEVEL_LOW);    /* IRQ2 CAN3 */
 376         set_irq_type(35, IRQ_TYPE_LEVEL_LOW);    /* IRQ3 SMSC9115 */
 377         set_irq_type(36, IRQ_TYPE_EDGE_RISING);  /* IRQ4 touchscreen */
 378         set_irq_type(37, IRQ_TYPE_EDGE_FALLING); /* IRQ5 touchscreen */
 379
 380         intc_set_priority(32, 13);              /* IRQ0 CAN1 */
 381         intc_set_priority(33, 13);              /* IRQ0 CAN2 */
 382         intc_set_priority(34, 13);              /* IRQ0 CAN3 */
 383         intc_set_priority(35, 6);               /* IRQ3 SMSC9115 */
 384 }
 385
 386 /*
 387  * The Machine Vector
 388  */
 389
 390 static struct sh_machine_vector mv_mpr2 __initmv = {
 391         .mv_name                = "mpr2",
 392         .mv_setup               = mpr2_setup,
 393         .mv_init_irq            = init_mpr2_IRQ,
 394 };