arch/arm/mach-pxa/mxm8x10.c

   1 // SPDX-License-Identifier: GPL-2.0-only
   2 /*
   3  * linux/arch/arm/mach-pxa/mxm8x10.c
   4  *
   5  * Support for the Embedian MXM-8x10 Computer on Module
   6  *
   7  * Copyright (C) 2006 Marvell International Ltd.
   8  * Copyright (C) 2009 Embedian Inc.
   9  * Copyright (C) 2009 TMT Services & Supplies (Pty) Ltd.
  10  *
  11  * 2007-09-04: eric miao <eric.y.miao@gmail.com>
  12  *             rewrite to align with latest kernel
  13  *
  14  * 2010-01-09: Edwin Peer <epeer@tmtservices.co.za>
  15  *             Hennie van der Merwe <hvdmerwe@tmtservices.co.za>
  16  *             rework for upstream merge
  17  */
  18
  19 #include <linux/serial_8250.h>
  20 #include <linux/dm9000.h>
  21 #include <linux/gpio/machine.h>
  22 #include <linux/platform_data/i2c-pxa.h>
  23
  24 #include <linux/platform_data/mtd-nand-pxa3xx.h>
  25
  26 #include <linux/platform_data/video-pxafb.h>
  27 #include <linux/platform_data/mmc-pxamci.h>
  28 #include <linux/platform_data/usb-ohci-pxa27x.h>
  29 #include <linux/platform_data/asoc-pxa.h>
  30 #include "pxa320.h"
  31
  32 #include "mxm8x10.h"
  33
  34 #include "devices.h"
  35 #include "generic.h"
  36
  37 /* GPIO pin definition
  38
  39 External device stuff   - Leave unconfigured for now...
  40 ---------------------
  41 GPIO0   -   DREQ    (External DMA Request)
  42 GPIO3   -   nGCS2   (External Chip Select) Where is nGCS0; nGCS1; nGCS4; nGCS5 ?
  43 GPIO4   -   nGCS3
  44 GPIO15  -   EXT_GPIO1
  45 GPIO16  -   EXT_GPIO2
  46 GPIO17  -   EXT_GPIO3
  47 GPIO24  -   EXT_GPIO4
  48 GPIO25  -   EXT_GPIO5
  49 GPIO26  -   EXT_GPIO6
  50 GPIO27  -   EXT_GPIO7
  51 GPIO28  -   EXT_GPIO8
  52 GPIO29  -   EXT_GPIO9
  53 GPIO30  -   EXT_GPIO10
  54 GPIO31  -   EXT_GPIO11
  55 GPIO57  -   EXT_GPIO12
  56 GPIO74  -   EXT_IRQ1
  57 GPIO75  -   EXT_IRQ2
  58 GPIO76  -   EXT_IRQ3
  59 GPIO77  -   EXT_IRQ4
  60 GPIO78  -   EXT_IRQ5
  61 GPIO79  -   EXT_IRQ6
  62 GPIO80  -   EXT_IRQ7
  63 GPIO81  -   EXT_IRQ8
  64 GPIO87  -   VCCIO_PWREN (External Device PWREN)
  65
  66 Dallas 1-Wire   - Leave unconfigured for now...
  67 -------------
  68 GPIO0_2 -   DS - 1Wire
  69
  70 Ethernet
  71 --------
  72 GPIO1   -   DM9000 PWR
  73 GPIO9   -   DM9K_nIRQ
  74 GPIO36  -   DM9K_RESET
  75
  76 Keypad  - Leave unconfigured by for now...
  77 ------
  78 GPIO1_2 -   KP_DKIN0
  79 GPIO5_2 -   KP_MKOUT7
  80 GPIO82  -   KP_DKIN1
  81 GPIO85  -   KP_DKIN2
  82 GPIO86  -   KP_DKIN3
  83 GPIO113 -   KP_MKIN0
  84 GPIO114 -   KP_MKIN1
  85 GPIO115 -   KP_MKIN2
  86 GPIO116 -   KP_MKIN3
  87 GPIO117 -   KP_MKIN4
  88 GPIO118 -   KP_MKIN5
  89 GPIO119 -   KP_MKIN6
  90 GPIO120 -   KP_MKIN7
  91 GPIO121 -   KP_MKOUT0
  92 GPIO122 -   KP_MKOUT1
  93 GPIO122 -   KP_MKOUT2
  94 GPIO123 -   KP_MKOUT3
  95 GPIO124 -   KP_MKOUT4
  96 GPIO125 -   KP_MKOUT5
  97 GPIO127 -   KP_MKOUT6
  98
  99 Data Bus    - Leave unconfigured for now...
 100 --------
 101 GPIO2   -   nWait (Data Bus)
 102
 103 USB Device
 104 ----------
 105 GPIO4_2 -   USBD_PULLUP
 106 GPIO10  -   UTM_CLK (USB Device UTM Clk)
 107 GPIO49  -   USB 2.0 Device UTM_DATA0
 108 GPIO50  -   USB 2.0 Device UTM_DATA1
 109 GPIO51  -   USB 2.0 Device UTM_DATA2
 110 GPIO52  -   USB 2.0 Device UTM_DATA3
 111 GPIO53  -   USB 2.0 Device UTM_DATA4
 112 GPIO54  -   USB 2.0 Device UTM_DATA5
 113 GPIO55  -   USB 2.0 Device UTM_DATA6
 114 GPIO56  -   USB 2.0 Device UTM_DATA7
 115 GPIO58  -   UTM_RXVALID (USB 2.0 Device)
 116 GPIO59  -   UTM_RXACTIVE (USB 2.0 Device)
 117 GPIO60  -   UTM_RXERROR
 118 GPIO61  -   UTM_OPMODE0
 119 GPIO62  -   UTM_OPMODE1
 120 GPIO71  -   USBD_INT    (USB Device?)
 121 GPIO73  -   UTM_TXREADY (USB 2.0 Device)
 122 GPIO83  -   UTM_TXVALID (USB 2.0 Device)
 123 GPIO98  -   UTM_RESET   (USB 2.0 device)
 124 GPIO99  -   UTM_XCVR_SELECT
 125 GPIO100 -   UTM_TERM_SELECT
 126 GPIO101 -   UTM_SUSPENDM_X
 127 GPIO102 -   UTM_LINESTATE0
 128 GPIO103 -   UTM_LINESTATE1
 129
 130 Card-Bus Interface  - Leave unconfigured for now...
 131 ------------------
 132 GPIO5   -   nPIOR (I/O space output enable)
 133 GPIO6   -   nPIOW (I/O space write enable)
 134 GPIO7   -   nIOS16 (Input from I/O space telling size of data bus)
 135 GPIO8   -   nPWAIT (Input for inserting wait states)
 136
 137 LCD
 138 ---
 139 GPIO6_2     -   LDD0
 140 GPIO7_2     -   LDD1
 141 GPIO8_2     -   LDD2
 142 GPIO9_2     -   LDD3
 143 GPIO11_2    -   LDD5
 144 GPIO12_2    -   LDD6
 145 GPIO13_2    -   LDD7
 146 GPIO14_2    -   VSYNC
 147 GPIO15_2    -   HSYNC
 148 GPIO16_2    -   VCLK
 149 GPIO17_2    -   HCLK
 150 GPIO18_2    -   VDEN
 151 GPIO63      -   LDD8    (CPU LCD)
 152 GPIO64      -   LDD9    (CPU LCD)
 153 GPIO65      -   LDD10   (CPU LCD)
 154 GPIO66      -   LDD11   (CPU LCD)
 155 GPIO67      -   LDD12   (CPU LCD)
 156 GPIO68      -   LDD13   (CPU LCD)
 157 GPIO69      -   LDD14   (CPU LCD)
 158 GPIO70      -   LDD15   (CPU LCD)
 159 GPIO88      -   VCCLCD_PWREN (LCD Panel PWREN)
 160 GPIO97      -   BACKLIGHT_EN
 161 GPIO104     -   LCD_PWREN
 162
 163 PWM   - Leave unconfigured for now...
 164 ---
 165 GPIO11  -   PWM0
 166 GPIO12  -   PWM1
 167 GPIO13  -   PWM2
 168 GPIO14  -   PWM3
 169
 170 SD-CARD
 171 -------
 172 GPIO18  -   SDDATA0
 173 GPIO19  -   SDDATA1
 174 GPIO20  -   SDDATA2
 175 GPIO21  -   SDDATA3
 176 GPIO22  -   SDCLK
 177 GPIO23  -   SDCMD
 178 GPIO72  -   SD_WP
 179 GPIO84  -   SD_nIRQ_CD  (SD-Card)
 180
 181 I2C
 182 ---
 183 GPIO32  -   I2CSCL
 184 GPIO33  -   I2CSDA
 185
 186 AC97
 187 ----
 188 GPIO35  -   AC97_SDATA_IN
 189 GPIO37  -   AC97_SDATA_OUT
 190 GPIO38  -   AC97_SYNC
 191 GPIO39  -   AC97_BITCLK
 192 GPIO40  -   AC97_nRESET
 193
 194 UART1
 195 -----
 196 GPIO41  -   UART_RXD1
 197 GPIO42  -   UART_TXD1
 198 GPIO43  -   UART_CTS1
 199 GPIO44  -   UART_DCD1
 200 GPIO45  -   UART_DSR1
 201 GPIO46  -   UART_nRI1
 202 GPIO47  -   UART_DTR1
 203 GPIO48  -   UART_RTS1
 204
 205 UART2
 206 -----
 207 GPIO109 -   RTS2
 208 GPIO110 -   RXD2
 209 GPIO111 -   TXD2
 210 GPIO112 -   nCTS2
 211
 212 UART3
 213 -----
 214 GPIO105 -   nCTS3
 215 GPIO106 -   nRTS3
 216 GPIO107 -   TXD3
 217 GPIO108 -   RXD3
 218
 219 SSP3    - Leave unconfigured for now...
 220 ----
 221 GPIO89  -   SSP3_CLK
 222 GPIO90  -   SSP3_SFRM
 223 GPIO91  -   SSP3_TXD
 224 GPIO92  -   SSP3_RXD
 225
 226 SSP4
 227 GPIO93  -   SSP4_CLK
 228 GPIO94  -   SSP4_SFRM
 229 GPIO95  -   SSP4_TXD
 230 GPIO96  -   SSP4_RXD
 231 */
 232
 233 static mfp_cfg_t mfp_cfg[] __initdata = {
 234         /* USB */
 235         GPIO10_UTM_CLK,
 236         GPIO49_U2D_PHYDATA_0,
 237         GPIO50_U2D_PHYDATA_1,
 238         GPIO51_U2D_PHYDATA_2,
 239         GPIO52_U2D_PHYDATA_3,
 240         GPIO53_U2D_PHYDATA_4,
 241         GPIO54_U2D_PHYDATA_5,
 242         GPIO55_U2D_PHYDATA_6,
 243         GPIO56_U2D_PHYDATA_7,
 244         GPIO58_UTM_RXVALID,
 245         GPIO59_UTM_RXACTIVE,
 246         GPIO60_U2D_RXERROR,
 247         GPIO61_U2D_OPMODE0,
 248         GPIO62_U2D_OPMODE1,
 249         GPIO71_GPIO, /* USBD_INT */
 250         GPIO73_UTM_TXREADY,
 251         GPIO83_U2D_TXVALID,
 252         GPIO98_U2D_RESET,
 253         GPIO99_U2D_XCVR_SEL,
 254         GPIO100_U2D_TERM_SEL,
 255         GPIO101_U2D_SUSPEND,
 256         GPIO102_UTM_LINESTATE_0,
 257         GPIO103_UTM_LINESTATE_1,
 258         GPIO4_2_GPIO | MFP_PULL_HIGH, /* UTM_PULLUP */
 259
 260         /* DM9000 */
 261         GPIO1_GPIO,
 262         GPIO9_GPIO,
 263         GPIO36_GPIO,
 264
 265         /* AC97 */
 266         GPIO35_AC97_SDATA_IN_0,
 267         GPIO37_AC97_SDATA_OUT,
 268         GPIO38_AC97_SYNC,
 269         GPIO39_AC97_BITCLK,
 270         GPIO40_AC97_nACRESET,
 271
 272         /* UARTS */
 273         GPIO41_UART1_RXD,
 274         GPIO42_UART1_TXD,
 275         GPIO43_UART1_CTS,
 276         GPIO44_UART1_DCD,
 277         GPIO45_UART1_DSR,
 278         GPIO46_UART1_RI,
 279         GPIO47_UART1_DTR,
 280         GPIO48_UART1_RTS,
 281
 282         GPIO109_UART2_RTS,
 283         GPIO110_UART2_RXD,
 284         GPIO111_UART2_TXD,
 285         GPIO112_UART2_CTS,
 286
 287         GPIO105_UART3_CTS,
 288         GPIO106_UART3_RTS,
 289         GPIO107_UART3_TXD,
 290         GPIO108_UART3_RXD,
 291
 292         GPIO78_GPIO,
 293         GPIO79_GPIO,
 294         GPIO80_GPIO,
 295         GPIO81_GPIO,
 296
 297         /* I2C */
 298         GPIO32_I2C_SCL,
 299         GPIO33_I2C_SDA,
 300
 301         /* MMC */
 302         GPIO18_MMC1_DAT0,
 303         GPIO19_MMC1_DAT1,
 304         GPIO20_MMC1_DAT2,
 305         GPIO21_MMC1_DAT3,
 306         GPIO22_MMC1_CLK,
 307         GPIO23_MMC1_CMD,
 308         GPIO72_GPIO | MFP_PULL_HIGH, /* Card Detect */
 309         GPIO84_GPIO | MFP_PULL_LOW, /* Write Protect */
 310
 311         /* IRQ */
 312         GPIO74_GPIO | MFP_LPM_EDGE_RISE, /* EXT_IRQ1 */
 313         GPIO75_GPIO | MFP_LPM_EDGE_RISE, /* EXT_IRQ2 */
 314         GPIO76_GPIO | MFP_LPM_EDGE_RISE, /* EXT_IRQ3 */
 315         GPIO77_GPIO | MFP_LPM_EDGE_RISE, /* EXT_IRQ4 */
 316         GPIO78_GPIO | MFP_LPM_EDGE_RISE, /* EXT_IRQ5 */
 317         GPIO79_GPIO | MFP_LPM_EDGE_RISE, /* EXT_IRQ6 */
 318         GPIO80_GPIO | MFP_LPM_EDGE_RISE, /* EXT_IRQ7 */
 319         GPIO81_GPIO | MFP_LPM_EDGE_RISE  /* EXT_IRQ8 */
 320 };
 321
 322 /* MMC/MCI Support */
 323 #if defined(CONFIG_MMC)
 324 static struct pxamci_platform_data mxm_8x10_mci_platform_data = {
 325         .ocr_mask = MMC_VDD_32_33 | MMC_VDD_33_34,
 326         .detect_delay_ms = 10,
 327 };
 328
 329 static struct gpiod_lookup_table mxm_8x10_mci_gpio_table = {
 330         .dev_id = "pxa2xx-mci.0",
 331         .table = {
 332                 /* Card detect on GPIO 72 */
 333                 GPIO_LOOKUP("gpio-pxa", MXM_8X10_SD_nCD,
 334                             "cd", GPIO_ACTIVE_LOW),
 335                 /* Write protect on GPIO 84 */
 336                 GPIO_LOOKUP("gpio-pxa", MXM_8X10_SD_WP,
 337                             "wp", GPIO_ACTIVE_LOW),
 338                 { },
 339         },
 340 };
 341
 342 void __init mxm_8x10_mmc_init(void)
 343 {
 344         gpiod_add_lookup_table(&mxm_8x10_mci_gpio_table);
 345         pxa_set_mci_info(&mxm_8x10_mci_platform_data);
 346 }
 347 #endif
 348
 349 /* USB Open Host Controller Interface */
 350 static struct pxaohci_platform_data mxm_8x10_ohci_platform_data = {
 351         .port_mode = PMM_NPS_MODE,
 352         .flags = ENABLE_PORT_ALL
 353 };
 354
 355 void __init mxm_8x10_usb_host_init(void)
 356 {
 357         pxa_set_ohci_info(&mxm_8x10_ohci_platform_data);
 358 }
 359
 360 void __init mxm_8x10_ac97_init(void)
 361 {
 362         pxa_set_ac97_info(NULL);
 363 }
 364
 365 /* NAND flash Support */
 366 #if IS_ENABLED(CONFIG_MTD_NAND_MARVELL)
 367 #define NAND_BLOCK_SIZE SZ_128K
 368 #define NB(x)           (NAND_BLOCK_SIZE * (x))
 369 static struct mtd_partition mxm_8x10_nand_partitions[] = {
 370         [0] = {
 371                .name = "boot",
 372                .size = NB(0x002),
 373                .offset = NB(0x000),
 374                .mask_flags = MTD_WRITEABLE
 375         },
 376         [1] = {
 377                .name = "kernel",
 378                .size = NB(0x010),
 379                .offset = NB(0x002),
 380                .mask_flags = MTD_WRITEABLE
 381         },
 382         [2] = {
 383                .name = "root",
 384                .size = NB(0x36c),
 385                .offset = NB(0x012)
 386         },
 387         [3] = {
 388                .name = "bbt",
 389                .size = NB(0x082),
 390                .offset = NB(0x37e),
 391                .mask_flags = MTD_WRITEABLE
 392         }
 393 };
 394
 395 static struct pxa3xx_nand_platform_data mxm_8x10_nand_info = {
 396         .keep_config    = 1,
 397         .parts          = mxm_8x10_nand_partitions,
 398         .nr_parts       = ARRAY_SIZE(mxm_8x10_nand_partitions)
 399 };
 400
 401 static void __init mxm_8x10_nand_init(void)
 402 {
 403         pxa3xx_set_nand_info(&mxm_8x10_nand_info);
 404 }
 405 #else
 406 static inline void mxm_8x10_nand_init(void) {}
 407 #endif /* IS_ENABLED(CONFIG_MTD_NAND_MARVELL) */
 408
 409 /* Ethernet support: Davicom DM9000 */
 410 static struct resource dm9k_resources[] = {
 411         [0] = {
 412                .start = MXM_8X10_ETH_PHYS + 0x300,
 413                .end = MXM_8X10_ETH_PHYS + 0x300,
 414                .flags = IORESOURCE_MEM
 415         },
 416         [1] = {
 417                .start = MXM_8X10_ETH_PHYS + 0x308,
 418                .end = MXM_8X10_ETH_PHYS + 0x308,
 419                .flags = IORESOURCE_MEM
 420         },
 421         [2] = {
 422                .start = PXA_GPIO_TO_IRQ(mfp_to_gpio(MFP_PIN_GPIO9)),
 423                .end = PXA_GPIO_TO_IRQ(mfp_to_gpio(MFP_PIN_GPIO9)),
 424                .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE
 425         }
 426 };
 427
 428 static struct dm9000_plat_data dm9k_plat_data = {
 429         .flags = DM9000_PLATF_16BITONLY
 430 };
 431
 432 static struct platform_device dm9k_device = {
 433         .name = "dm9000",
 434         .id = 0,
 435         .num_resources = ARRAY_SIZE(dm9k_resources),
 436         .resource = dm9k_resources,
 437         .dev = {
 438                 .platform_data = &dm9k_plat_data
 439         }
 440 };
 441
 442 static void __init mxm_8x10_ethernet_init(void)
 443 {
 444         platform_device_register(&dm9k_device);
 445 }
 446
 447 /* PXA UARTs */
 448 static void __init mxm_8x10_uarts_init(void)
 449 {
 450         pxa_set_ffuart_info(NULL);
 451         pxa_set_btuart_info(NULL);
 452         pxa_set_stuart_info(NULL);
 453 }
 454
 455 /* I2C and Real Time Clock */
 456 static struct i2c_board_info __initdata mxm_8x10_i2c_devices[] = {
 457         {
 458                 I2C_BOARD_INFO("ds1337", 0x68)
 459         }
 460 };
 461
 462 static void __init mxm_8x10_i2c_init(void)
 463 {
 464         i2c_register_board_info(0, mxm_8x10_i2c_devices,
 465                                 ARRAY_SIZE(mxm_8x10_i2c_devices));
 466         pxa_set_i2c_info(NULL);
 467 }
 468
 469 void __init mxm_8x10_barebones_init(void)
 470 {
 471         pxa3xx_mfp_config(ARRAY_AND_SIZE(mfp_cfg));
 472
 473         mxm_8x10_uarts_init();
 474         mxm_8x10_nand_init();
 475         mxm_8x10_i2c_init();
 476         mxm_8x10_ethernet_init();
 477 }