arch/arm/mach-pxa/mxm8x10.c

   1 /*
   2  * linux/arch/arm/mach-pxa/mxm8x10.c
   3  *
   4  * Support for the Embedian MXM-8x10 Computer on Module
   5  *
   6  * Copyright (C) 2006 Marvell International Ltd.
   7  * Copyright (C) 2009 Embedian Inc.
   8  * Copyright (C) 2009 TMT Services & Supplies (Pty) Ltd.
   9  *
  10  * 2007-09-04: eric miao <eric.y.miao@gmail.com>
  11  *             rewrite to align with latest kernel
  12  *
  13  * 2010-01-09: Edwin Peer <epeer@tmtservices.co.za>
  14  *             Hennie van der Merwe <hvdmerwe@tmtservices.co.za>
  15  *             rework for upstream merge
  16  *
  17  * This program is free software; you can redistribute it and/or modify
  18  * it under the terms of the GNU General Public License version 2 as
  19  * published by the Free Software Foundation.
  20  */
  21
  22 #include <linux/serial_8250.h>
  23 #include <linux/dm9000.h>
  24 #include <linux/gpio.h>
  25 #include <linux/i2c/pxa-i2c.h>
  26
  27 #include <plat/pxa3xx_nand.h>
  28
  29 #include <mach/pxafb.h>
  30 #include <mach/mmc.h>
  31 #include <mach/ohci.h>
  32 #include <mach/pxa320.h>
  33
  34 #include <mach/mxm8x10.h>
  35
  36 #include "devices.h"
  37 #include "generic.h"
  38
  39 /* GPIO pin definition
  40
  41 External device stuff   - Leave unconfigured for now...
  42 ---------------------
  43 GPIO0   -   DREQ    (External DMA Request)
  44 GPIO3   -   nGCS2   (External Chip Select) Where is nGCS0; nGCS1; nGCS4; nGCS5 ?
  45 GPIO4   -   nGCS3
  46 GPIO15  -   EXT_GPIO1
  47 GPIO16  -   EXT_GPIO2
  48 GPIO17  -   EXT_GPIO3
  49 GPIO24  -   EXT_GPIO4
  50 GPIO25  -   EXT_GPIO5
  51 GPIO26  -   EXT_GPIO6
  52 GPIO27  -   EXT_GPIO7
  53 GPIO28  -   EXT_GPIO8
  54 GPIO29  -   EXT_GPIO9
  55 GPIO30  -   EXT_GPIO10
  56 GPIO31  -   EXT_GPIO11
  57 GPIO57  -   EXT_GPIO12
  58 GPIO74  -   EXT_IRQ1
  59 GPIO75  -   EXT_IRQ2
  60 GPIO76  -   EXT_IRQ3
  61 GPIO77  -   EXT_IRQ4
  62 GPIO78  -   EXT_IRQ5
  63 GPIO79  -   EXT_IRQ6
  64 GPIO80  -   EXT_IRQ7
  65 GPIO81  -   EXT_IRQ8
  66 GPIO87  -   VCCIO_PWREN (External Device PWREN)
  67
  68 Dallas 1-Wire   - Leave unconfigured for now...
  69 -------------
  70 GPIO0_2 -   DS - 1Wire
  71
  72 Ethernet
  73 --------
  74 GPIO1   -   DM9000 PWR
  75 GPIO9   -   DM9K_nIRQ
  76 GPIO36  -   DM9K_RESET
  77
  78 Keypad  - Leave unconfigured by for now...
  79 ------
  80 GPIO1_2 -   KP_DKIN0
  81 GPIO5_2 -   KP_MKOUT7
  82 GPIO82  -   KP_DKIN1
  83 GPIO85  -   KP_DKIN2
  84 GPIO86  -   KP_DKIN3
  85 GPIO113 -   KP_MKIN0
  86 GPIO114 -   KP_MKIN1
  87 GPIO115 -   KP_MKIN2
  88 GPIO116 -   KP_MKIN3
  89 GPIO117 -   KP_MKIN4
  90 GPIO118 -   KP_MKIN5
  91 GPIO119 -   KP_MKIN6
  92 GPIO120 -   KP_MKIN7
  93 GPIO121 -   KP_MKOUT0
  94 GPIO122 -   KP_MKOUT1
  95 GPIO122 -   KP_MKOUT2
  96 GPIO123 -   KP_MKOUT3
  97 GPIO124 -   KP_MKOUT4
  98 GPIO125 -   KP_MKOUT5
  99 GPIO127 -   KP_MKOUT6
 100
 101 Data Bus    - Leave unconfigured for now...
 102 --------
 103 GPIO2   -   nWait (Data Bus)
 104
 105 USB Device
 106 ----------
 107 GPIO4_2 -   USBD_PULLUP
 108 GPIO10  -   UTM_CLK (USB Device UTM Clk)
 109 GPIO49  -   USB 2.0 Device UTM_DATA0
 110 GPIO50  -   USB 2.0 Device UTM_DATA1
 111 GPIO51  -   USB 2.0 Device UTM_DATA2
 112 GPIO52  -   USB 2.0 Device UTM_DATA3
 113 GPIO53  -   USB 2.0 Device UTM_DATA4
 114 GPIO54  -   USB 2.0 Device UTM_DATA5
 115 GPIO55  -   USB 2.0 Device UTM_DATA6
 116 GPIO56  -   USB 2.0 Device UTM_DATA7
 117 GPIO58  -   UTM_RXVALID (USB 2.0 Device)
 118 GPIO59  -   UTM_RXACTIVE (USB 2.0 Device)
 119 GPIO60  -   UTM_RXERROR
 120 GPIO61  -   UTM_OPMODE0
 121 GPIO62  -   UTM_OPMODE1
 122 GPIO71  -   USBD_INT    (USB Device?)
 123 GPIO73  -   UTM_TXREADY (USB 2.0 Device)
 124 GPIO83  -   UTM_TXVALID (USB 2.0 Device)
 125 GPIO98  -   UTM_RESET   (USB 2.0 device)
 126 GPIO99  -   UTM_XCVR_SELECT
 127 GPIO100 -   UTM_TERM_SELECT
 128 GPIO101 -   UTM_SUSPENDM_X
 129 GPIO102 -   UTM_LINESTATE0
 130 GPIO103 -   UTM_LINESTATE1
 131
 132 Card-Bus Interface  - Leave unconfigured for now...
 133 ------------------
 134 GPIO5   -   nPIOR (I/O space output enable)
 135 GPIO6   -   nPIOW (I/O space write enable)
 136 GPIO7   -   nIOS16 (Input from I/O space telling size of data bus)
 137 GPIO8   -   nPWAIT (Input for inserting wait states)
 138
 139 LCD
 140 ---
 141 GPIO6_2     -   LDD0
 142 GPIO7_2     -   LDD1
 143 GPIO8_2     -   LDD2
 144 GPIO9_2     -   LDD3
 145 GPIO11_2    -   LDD5
 146 GPIO12_2    -   LDD6
 147 GPIO13_2    -   LDD7
 148 GPIO14_2    -   VSYNC
 149 GPIO15_2    -   HSYNC
 150 GPIO16_2    -   VCLK
 151 GPIO17_2    -   HCLK
 152 GPIO18_2    -   VDEN
 153 GPIO63      -   LDD8    (CPU LCD)
 154 GPIO64      -   LDD9    (CPU LCD)
 155 GPIO65      -   LDD10   (CPU LCD)
 156 GPIO66      -   LDD11   (CPU LCD)
 157 GPIO67      -   LDD12   (CPU LCD)
 158 GPIO68      -   LDD13   (CPU LCD)
 159 GPIO69      -   LDD14   (CPU LCD)
 160 GPIO70      -   LDD15   (CPU LCD)
 161 GPIO88      -   VCCLCD_PWREN (LCD Panel PWREN)
 162 GPIO97      -   BACKLIGHT_EN
 163 GPIO104     -   LCD_PWREN
 164
 165 PWM   - Leave unconfigured for now...
 166 ---
 167 GPIO11  -   PWM0
 168 GPIO12  -   PWM1
 169 GPIO13  -   PWM2
 170 GPIO14  -   PWM3
 171
 172 SD-CARD
 173 -------
 174 GPIO18  -   SDDATA0
 175 GPIO19  -   SDDATA1
 176 GPIO20  -   SDDATA2
 177 GPIO21  -   SDDATA3
 178 GPIO22  -   SDCLK
 179 GPIO23  -   SDCMD
 180 GPIO72  -   SD_WP
 181 GPIO84  -   SD_nIRQ_CD  (SD-Card)
 182
 183 I2C
 184 ---
 185 GPIO32  -   I2CSCL
 186 GPIO33  -   I2CSDA
 187
 188 AC97
 189 ----
 190 GPIO35  -   AC97_SDATA_IN
 191 GPIO37  -   AC97_SDATA_OUT
 192 GPIO38  -   AC97_SYNC
 193 GPIO39  -   AC97_BITCLK
 194 GPIO40  -   AC97_nRESET
 195
 196 UART1
 197 -----
 198 GPIO41  -   UART_RXD1
 199 GPIO42  -   UART_TXD1
 200 GPIO43  -   UART_CTS1
 201 GPIO44  -   UART_DCD1
 202 GPIO45  -   UART_DSR1
 203 GPIO46  -   UART_nRI1
 204 GPIO47  -   UART_DTR1
 205 GPIO48  -   UART_RTS1
 206
 207 UART2
 208 -----
 209 GPIO109 -   RTS2
 210 GPIO110 -   RXD2
 211 GPIO111 -   TXD2
 212 GPIO112 -   nCTS2
 213
 214 UART3
 215 -----
 216 GPIO105 -   nCTS3
 217 GPIO106 -   nRTS3
 218 GPIO107 -   TXD3
 219 GPIO108 -   RXD3
 220
 221 SSP3    - Leave unconfigured for now...
 222 ----
 223 GPIO89  -   SSP3_CLK
 224 GPIO90  -   SSP3_SFRM
 225 GPIO91  -   SSP3_TXD
 226 GPIO92  -   SSP3_RXD
 227
 228 SSP4
 229 GPIO93  -   SSP4_CLK
 230 GPIO94  -   SSP4_SFRM
 231 GPIO95  -   SSP4_TXD
 232 GPIO96  -   SSP4_RXD
 233 */
 234
 235 static mfp_cfg_t mfp_cfg[] __initdata = {
 236         /* USB */
 237         GPIO10_UTM_CLK,
 238         GPIO49_U2D_PHYDATA_0,
 239         GPIO50_U2D_PHYDATA_1,
 240         GPIO51_U2D_PHYDATA_2,
 241         GPIO52_U2D_PHYDATA_3,
 242         GPIO53_U2D_PHYDATA_4,
 243         GPIO54_U2D_PHYDATA_5,
 244         GPIO55_U2D_PHYDATA_6,
 245         GPIO56_U2D_PHYDATA_7,
 246         GPIO58_UTM_RXVALID,
 247         GPIO59_UTM_RXACTIVE,
 248         GPIO60_U2D_RXERROR,
 249         GPIO61_U2D_OPMODE0,
 250         GPIO62_U2D_OPMODE1,
 251         GPIO71_GPIO, /* USBD_INT */
 252         GPIO73_UTM_TXREADY,
 253         GPIO83_U2D_TXVALID,
 254         GPIO98_U2D_RESET,
 255         GPIO99_U2D_XCVR_SEL,
 256         GPIO100_U2D_TERM_SEL,
 257         GPIO101_U2D_SUSPEND,
 258         GPIO102_UTM_LINESTATE_0,
 259         GPIO103_UTM_LINESTATE_1,
 260         GPIO4_2_GPIO | MFP_PULL_HIGH, /* UTM_PULLUP */
 261
 262         /* DM9000 */
 263         GPIO1_GPIO,
 264         GPIO9_GPIO,
 265         GPIO36_GPIO,
 266
 267         /* AC97 */
 268         GPIO35_AC97_SDATA_IN_0,
 269         GPIO37_AC97_SDATA_OUT,
 270         GPIO38_AC97_SYNC,
 271         GPIO39_AC97_BITCLK,
 272         GPIO40_AC97_nACRESET,
 273
 274         /* UARTS */
 275         GPIO41_UART1_RXD,
 276         GPIO42_UART1_TXD,
 277         GPIO43_UART1_CTS,
 278         GPIO44_UART1_DCD,
 279         GPIO45_UART1_DSR,
 280         GPIO46_UART1_RI,
 281         GPIO47_UART1_DTR,
 282         GPIO48_UART1_RTS,
 283
 284         GPIO109_UART2_RTS,
 285         GPIO110_UART2_RXD,
 286         GPIO111_UART2_TXD,
 287         GPIO112_UART2_CTS,
 288
 289         GPIO105_UART3_CTS,
 290         GPIO106_UART3_RTS,
 291         GPIO107_UART3_TXD,
 292         GPIO108_UART3_RXD,
 293
 294         GPIO78_GPIO,
 295         GPIO79_GPIO,
 296         GPIO80_GPIO,
 297         GPIO81_GPIO,
 298
 299         /* I2C */
 300         GPIO32_I2C_SCL,
 301         GPIO33_I2C_SDA,
 302
 303         /* MMC */
 304         GPIO18_MMC1_DAT0,
 305         GPIO19_MMC1_DAT1,
 306         GPIO20_MMC1_DAT2,
 307         GPIO21_MMC1_DAT3,
 308         GPIO22_MMC1_CLK,
 309         GPIO23_MMC1_CMD,
 310         GPIO72_GPIO | MFP_PULL_HIGH, /* Card Detect */
 311         GPIO84_GPIO | MFP_PULL_LOW, /* Write Protect */
 312
 313         /* IRQ */
 314         GPIO74_GPIO | MFP_LPM_EDGE_RISE, /* EXT_IRQ1 */
 315         GPIO75_GPIO | MFP_LPM_EDGE_RISE, /* EXT_IRQ2 */
 316         GPIO76_GPIO | MFP_LPM_EDGE_RISE, /* EXT_IRQ3 */
 317         GPIO77_GPIO | MFP_LPM_EDGE_RISE, /* EXT_IRQ4 */
 318         GPIO78_GPIO | MFP_LPM_EDGE_RISE, /* EXT_IRQ5 */
 319         GPIO79_GPIO | MFP_LPM_EDGE_RISE, /* EXT_IRQ6 */
 320         GPIO80_GPIO | MFP_LPM_EDGE_RISE, /* EXT_IRQ7 */
 321         GPIO81_GPIO | MFP_LPM_EDGE_RISE  /* EXT_IRQ8 */
 322 };
 323
 324 /* MMC/MCI Support */
 325 #if defined(CONFIG_MMC)
 326 static struct pxamci_platform_data mxm_8x10_mci_platform_data = {
 327         .ocr_mask = MMC_VDD_32_33 | MMC_VDD_33_34,
 328         .detect_delay_ms = 10,
 329         .gpio_card_detect = MXM_8X10_SD_nCD,
 330         .gpio_card_ro = MXM_8X10_SD_WP,
 331         .gpio_power = -1
 332 };
 333
 334 void __init mxm_8x10_mmc_init(void)
 335 {
 336         pxa_set_mci_info(&mxm_8x10_mci_platform_data);
 337 }
 338 #endif
 339
 340 /* USB Open Host Controller Interface */
 341 static struct pxaohci_platform_data mxm_8x10_ohci_platform_data = {
 342         .port_mode = PMM_NPS_MODE,
 343         .flags = ENABLE_PORT_ALL
 344 };
 345
 346 void __init mxm_8x10_usb_host_init(void)
 347 {
 348         pxa_set_ohci_info(&mxm_8x10_ohci_platform_data);
 349 }
 350
 351 /* AC97 Sound Support */
 352 static struct platform_device mxm_8x10_ac97_device = {
 353         .name = "pxa2xx-ac97"
 354 };
 355
 356 void __init mxm_8x10_ac97_init(void)
 357 {
 358         platform_device_register(&mxm_8x10_ac97_device);
 359 }
 360
 361 /* NAND flash Support */
 362 #if defined(CONFIG_MTD_NAND_PXA3xx) || defined(CONFIG_MTD_NAND_PXA3xx_MODULE)
 363 #define NAND_BLOCK_SIZE SZ_128K
 364 #define NB(x)           (NAND_BLOCK_SIZE * (x))
 365 static struct mtd_partition mxm_8x10_nand_partitions[] = {
 366         [0] = {
 367                .name = "boot",
 368                .size = NB(0x002),
 369                .offset = NB(0x000),
 370                .mask_flags = MTD_WRITEABLE
 371         },
 372         [1] = {
 373                .name = "kernel",
 374                .size = NB(0x010),
 375                .offset = NB(0x002),
 376                .mask_flags = MTD_WRITEABLE
 377         },
 378         [2] = {
 379                .name = "root",
 380                .size = NB(0x36c),
 381                .offset = NB(0x012)
 382         },
 383         [3] = {
 384                .name = "bbt",
 385                .size = NB(0x082),
 386                .offset = NB(0x37e),
 387                .mask_flags = MTD_WRITEABLE
 388         }
 389 };
 390
 391 static struct pxa3xx_nand_platform_data mxm_8x10_nand_info = {
 392         .enable_arbiter = 1,
 393         .keep_config = 1,
 394         .parts = mxm_8x10_nand_partitions,
 395         .nr_parts = ARRAY_SIZE(mxm_8x10_nand_partitions)
 396 };
 397
 398 static void __init mxm_8x10_nand_init(void)
 399 {
 400         pxa3xx_set_nand_info(&mxm_8x10_nand_info);
 401 }
 402 #else
 403 static inline void mxm_8x10_nand_init(void) {}
 404 #endif /* CONFIG_MTD_NAND_PXA3xx || CONFIG_MTD_NAND_PXA3xx_MODULE */
 405
 406 /* Ethernet support: Davicom DM9000 */
 407 static struct resource dm9k_resources[] = {
 408         [0] = {
 409                .start = MXM_8X10_ETH_PHYS + 0x300,
 410                .end = MXM_8X10_ETH_PHYS + 0x300,
 411                .flags = IORESOURCE_MEM
 412         },
 413         [1] = {
 414                .start = MXM_8X10_ETH_PHYS + 0x308,
 415                .end = MXM_8X10_ETH_PHYS + 0x308,
 416                .flags = IORESOURCE_MEM
 417         },
 418         [2] = {
 419                .start = gpio_to_irq(mfp_to_gpio(MFP_PIN_GPIO9)),
 420                .end = gpio_to_irq(mfp_to_gpio(MFP_PIN_GPIO9)),
 421                .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE
 422         }
 423 };
 424
 425 static struct dm9000_plat_data dm9k_plat_data = {
 426         .flags = DM9000_PLATF_16BITONLY
 427 };
 428
 429 static struct platform_device dm9k_device = {
 430         .name = "dm9000",
 431         .id = 0,
 432         .num_resources = ARRAY_SIZE(dm9k_resources),
 433         .resource = dm9k_resources,
 434         .dev = {
 435                 .platform_data = &dm9k_plat_data
 436         }
 437 };
 438
 439 static void __init mxm_8x10_ethernet_init(void)
 440 {
 441         platform_device_register(&dm9k_device);
 442 }
 443
 444 /* PXA UARTs */
 445 static void __init mxm_8x10_uarts_init(void)
 446 {
 447         pxa_set_ffuart_info(NULL);
 448         pxa_set_btuart_info(NULL);
 449         pxa_set_stuart_info(NULL);
 450 }
 451
 452 /* I2C and Real Time Clock */
 453 static struct i2c_board_info __initdata mxm_8x10_i2c_devices[] = {
 454         {
 455                 I2C_BOARD_INFO("ds1337", 0x68)
 456         }
 457 };
 458
 459 static void __init mxm_8x10_i2c_init(void)
 460 {
 461         i2c_register_board_info(0, mxm_8x10_i2c_devices,
 462                                 ARRAY_SIZE(mxm_8x10_i2c_devices));
 463         pxa_set_i2c_info(NULL);
 464 }
 465
 466 void __init mxm_8x10_barebones_init(void)
 467 {
 468         pxa3xx_mfp_config(ARRAY_AND_SIZE(mfp_cfg));
 469
 470         mxm_8x10_uarts_init();
 471         mxm_8x10_nand_init();
 472         mxm_8x10_i2c_init();
 473         mxm_8x10_ethernet_init();
 474 }