LXR linux/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 <linux/platform_data/mtd-nand-pxa3xx.h>
  28
  29#include <linux/platform_data/video-pxafb.h>
  30#include <linux/platform_data/mmc-pxamci.h>
  31#include <linux/platform_data/usb-ohci-pxa27x.h>
  32#include "pxa320.h"
  33
  34#include "mxm8x10.h"
  35
  36#include "devices.h"
  37#include "generic.h"
  38
  39/* GPIO pin definition
  40
  41External device stuff   - Leave unconfigured for now...
  42---------------------
  43GPIO0   -   DREQ    (External DMA Request)
  44GPIO3   -   nGCS2   (External Chip Select) Where is nGCS0; nGCS1; nGCS4; nGCS5 ?
  45GPIO4   -   nGCS3
  46GPIO15  -   EXT_GPIO1
  47GPIO16  -   EXT_GPIO2
  48GPIO17  -   EXT_GPIO3
  49GPIO24  -   EXT_GPIO4
  50GPIO25  -   EXT_GPIO5
  51GPIO26  -   EXT_GPIO6
  52GPIO27  -   EXT_GPIO7
  53GPIO28  -   EXT_GPIO8
  54GPIO29  -   EXT_GPIO9
  55GPIO30  -   EXT_GPIO10
  56GPIO31  -   EXT_GPIO11
  57GPIO57  -   EXT_GPIO12
  58GPIO74  -   EXT_IRQ1
  59GPIO75  -   EXT_IRQ2
  60GPIO76  -   EXT_IRQ3
  61GPIO77  -   EXT_IRQ4
  62GPIO78  -   EXT_IRQ5
  63GPIO79  -   EXT_IRQ6
  64GPIO80  -   EXT_IRQ7
  65GPIO81  -   EXT_IRQ8
  66GPIO87  -   VCCIO_PWREN (External Device PWREN)
  67
  68Dallas 1-Wire   - Leave unconfigured for now...
  69-------------
  70GPIO0_2 -   DS - 1Wire
  71
  72Ethernet
  73--------
  74GPIO1   -   DM9000 PWR
  75GPIO9   -   DM9K_nIRQ
  76GPIO36  -   DM9K_RESET
  77
  78Keypad  - Leave unconfigured by for now...
  79------
  80GPIO1_2 -   KP_DKIN0
  81GPIO5_2 -   KP_MKOUT7
  82GPIO82  -   KP_DKIN1
  83GPIO85  -   KP_DKIN2
  84GPIO86  -   KP_DKIN3
  85GPIO113 -   KP_MKIN0
  86GPIO114 -   KP_MKIN1
  87GPIO115 -   KP_MKIN2
  88GPIO116 -   KP_MKIN3
  89GPIO117 -   KP_MKIN4
  90GPIO118 -   KP_MKIN5
  91GPIO119 -   KP_MKIN6
  92GPIO120 -   KP_MKIN7
  93GPIO121 -   KP_MKOUT0
  94GPIO122 -   KP_MKOUT1
  95GPIO122 -   KP_MKOUT2
  96GPIO123 -   KP_MKOUT3
  97GPIO124 -   KP_MKOUT4
  98GPIO125 -   KP_MKOUT5
  99GPIO127 -   KP_MKOUT6
 100
 101Data Bus    - Leave unconfigured for now...
 102--------
 103GPIO2   -   nWait (Data Bus)
 104
 105USB Device
 106----------
 107GPIO4_2 -   USBD_PULLUP
 108GPIO10  -   UTM_CLK (USB Device UTM Clk)
 109GPIO49  -   USB 2.0 Device UTM_DATA0
 110GPIO50  -   USB 2.0 Device UTM_DATA1
 111GPIO51  -   USB 2.0 Device UTM_DATA2
 112GPIO52  -   USB 2.0 Device UTM_DATA3
 113GPIO53  -   USB 2.0 Device UTM_DATA4
 114GPIO54  -   USB 2.0 Device UTM_DATA5
 115GPIO55  -   USB 2.0 Device UTM_DATA6
 116GPIO56  -   USB 2.0 Device UTM_DATA7
 117GPIO58  -   UTM_RXVALID (USB 2.0 Device)
 118GPIO59  -   UTM_RXACTIVE (USB 2.0 Device)
 119GPIO60  -   UTM_RXERROR
 120GPIO61  -   UTM_OPMODE0
 121GPIO62  -   UTM_OPMODE1
 122GPIO71  -   USBD_INT    (USB Device?)
 123GPIO73  -   UTM_TXREADY (USB 2.0 Device)
 124GPIO83  -   UTM_TXVALID (USB 2.0 Device)
 125GPIO98  -   UTM_RESET   (USB 2.0 device)
 126GPIO99  -   UTM_XCVR_SELECT
 127GPIO100 -   UTM_TERM_SELECT
 128GPIO101 -   UTM_SUSPENDM_X
 129GPIO102 -   UTM_LINESTATE0
 130GPIO103 -   UTM_LINESTATE1
 131
 132Card-Bus Interface  - Leave unconfigured for now...
 133------------------
 134GPIO5   -   nPIOR (I/O space output enable)
 135GPIO6   -   nPIOW (I/O space write enable)
 136GPIO7   -   nIOS16 (Input from I/O space telling size of data bus)
 137GPIO8   -   nPWAIT (Input for inserting wait states)
 138
 139LCD
 140---
 141GPIO6_2     -   LDD0
 142GPIO7_2     -   LDD1
 143GPIO8_2     -   LDD2
 144GPIO9_2     -   LDD3
 145GPIO11_2    -   LDD5
 146GPIO12_2    -   LDD6
 147GPIO13_2    -   LDD7
 148GPIO14_2    -   VSYNC
 149GPIO15_2    -   HSYNC
 150GPIO16_2    -   VCLK
 151GPIO17_2    -   HCLK
 152GPIO18_2    -   VDEN
 153GPIO63      -   LDD8    (CPU LCD)
 154GPIO64      -   LDD9    (CPU LCD)
 155GPIO65      -   LDD10   (CPU LCD)
 156GPIO66      -   LDD11   (CPU LCD)
 157GPIO67      -   LDD12   (CPU LCD)
 158GPIO68      -   LDD13   (CPU LCD)
 159GPIO69      -   LDD14   (CPU LCD)
 160GPIO70      -   LDD15   (CPU LCD)
 161GPIO88      -   VCCLCD_PWREN (LCD Panel PWREN)
 162GPIO97      -   BACKLIGHT_EN
 163GPIO104     -   LCD_PWREN
 164
 165PWM   - Leave unconfigured for now...
 166---
 167GPIO11  -   PWM0
 168GPIO12  -   PWM1
 169GPIO13  -   PWM2
 170GPIO14  -   PWM3
 171
 172SD-CARD
 173-------
 174GPIO18  -   SDDATA0
 175GPIO19  -   SDDATA1
 176GPIO20  -   SDDATA2
 177GPIO21  -   SDDATA3
 178GPIO22  -   SDCLK
 179GPIO23  -   SDCMD
 180GPIO72  -   SD_WP
 181GPIO84  -   SD_nIRQ_CD  (SD-Card)
 182
 183I2C
 184---
 185GPIO32  -   I2CSCL
 186GPIO33  -   I2CSDA
 187
 188AC97
 189----
 190GPIO35  -   AC97_SDATA_IN
 191GPIO37  -   AC97_SDATA_OUT
 192GPIO38  -   AC97_SYNC
 193GPIO39  -   AC97_BITCLK
 194GPIO40  -   AC97_nRESET
 195
 196UART1
 197-----
 198GPIO41  -   UART_RXD1
 199GPIO42  -   UART_TXD1
 200GPIO43  -   UART_CTS1
 201GPIO44  -   UART_DCD1
 202GPIO45  -   UART_DSR1
 203GPIO46  -   UART_nRI1
 204GPIO47  -   UART_DTR1
 205GPIO48  -   UART_RTS1
 206
 207UART2
 208-----
 209GPIO109 -   RTS2
 210GPIO110 -   RXD2
 211GPIO111 -   TXD2
 212GPIO112 -   nCTS2
 213
 214UART3
 215-----
 216GPIO105 -   nCTS3
 217GPIO106 -   nRTS3
 218GPIO107 -   TXD3
 219GPIO108 -   RXD3
 220
 221SSP3    - Leave unconfigured for now...
 222----
 223GPIO89  -   SSP3_CLK
 224GPIO90  -   SSP3_SFRM
 225GPIO91  -   SSP3_TXD
 226GPIO92  -   SSP3_RXD
 227
 228SSP4
 229GPIO93  -   SSP4_CLK
 230GPIO94  -   SSP4_SFRM
 231GPIO95  -   SSP4_TXD
 232GPIO96  -   SSP4_RXD
 233*/
 234
 235static 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)
 326static 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
 334void __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 */
 341static struct pxaohci_platform_data mxm_8x10_ohci_platform_data = {
 342        .port_mode = PMM_NPS_MODE,
 343        .flags = ENABLE_PORT_ALL
 344};
 345
 346void __init mxm_8x10_usb_host_init(void)
 347{
 348        pxa_set_ohci_info(&mxm_8x10_ohci_platform_data);
 349}
 350
 351/* AC97 Sound Support */
 352static struct platform_device mxm_8x10_ac97_device = {
 353        .name = "pxa2xx-ac97"
 354};
 355
 356void __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))
 365static 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
 391static struct pxa3xx_nand_platform_data mxm_8x10_nand_info = {
 392        .enable_arbiter = 1,
 393        .keep_config    = 1,
 394        .num_cs         = 1,
 395        .parts[0]       = mxm_8x10_nand_partitions,
 396        .nr_parts[0]    = ARRAY_SIZE(mxm_8x10_nand_partitions)
 397};
 398
 399static void __init mxm_8x10_nand_init(void)
 400{
 401        pxa3xx_set_nand_info(&mxm_8x10_nand_info);
 402}
 403#else
 404static inline void mxm_8x10_nand_init(void) {}
 405#endif /* CONFIG_MTD_NAND_PXA3xx || CONFIG_MTD_NAND_PXA3xx_MODULE */
 406
 407/* Ethernet support: Davicom DM9000 */
 408static struct resource dm9k_resources[] = {
 409        [0] = {
 410               .start = MXM_8X10_ETH_PHYS + 0x300,
 411               .end = MXM_8X10_ETH_PHYS + 0x300,
 412               .flags = IORESOURCE_MEM
 413        },
 414        [1] = {
 415               .start = MXM_8X10_ETH_PHYS + 0x308,
 416               .end = MXM_8X10_ETH_PHYS + 0x308,
 417               .flags = IORESOURCE_MEM
 418        },
 419        [2] = {
 420               .start = PXA_GPIO_TO_IRQ(mfp_to_gpio(MFP_PIN_GPIO9)),
 421               .end = PXA_GPIO_TO_IRQ(mfp_to_gpio(MFP_PIN_GPIO9)),
 422               .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE
 423        }
 424};
 425
 426static struct dm9000_plat_data dm9k_plat_data = {
 427        .flags = DM9000_PLATF_16BITONLY
 428};
 429
 430static struct platform_device dm9k_device = {
 431        .name = "dm9000",
 432        .id = 0,
 433        .num_resources = ARRAY_SIZE(dm9k_resources),
 434        .resource = dm9k_resources,
 435        .dev = {
 436                .platform_data = &dm9k_plat_data
 437        }
 438};
 439
 440static void __init mxm_8x10_ethernet_init(void)
 441{
 442        platform_device_register(&dm9k_device);
 443}
 444
 445/* PXA UARTs */
 446static void __init mxm_8x10_uarts_init(void)
 447{
 448        pxa_set_ffuart_info(NULL);
 449        pxa_set_btuart_info(NULL);
 450        pxa_set_stuart_info(NULL);
 451}
 452
 453/* I2C and Real Time Clock */
 454static struct i2c_board_info __initdata mxm_8x10_i2c_devices[] = {
 455        {
 456                I2C_BOARD_INFO("ds1337", 0x68)
 457        }
 458};
 459
 460static void __init mxm_8x10_i2c_init(void)
 461{
 462        i2c_register_board_info(0, mxm_8x10_i2c_devices,
 463                                ARRAY_SIZE(mxm_8x10_i2c_devices));
 464        pxa_set_i2c_info(NULL);
 465}
 466
 467void __init mxm_8x10_barebones_init(void)
 468{
 469        pxa3xx_mfp_config(ARRAY_AND_SIZE(mfp_cfg));
 470
 471        mxm_8x10_uarts_init();
 472        mxm_8x10_nand_init();
 473        mxm_8x10_i2c_init();
 474        mxm_8x10_ethernet_init();
 475}
 476