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 "pxa320.h"
  30
  31 #include "mxm8x10.h"
  32
  33 #include "devices.h"
  34 #include "generic.h"
  35
  36 /* GPIO pin definition
  37
  38 External device stuff   - Leave unconfigured for now...
  39 ---------------------
  40 GPIO0   -   DREQ    (External DMA Request)
  41 GPIO3   -   nGCS2   (External Chip Select) Where is nGCS0; nGCS1; nGCS4; nGCS5 ?
  42 GPIO4   -   nGCS3
  43 GPIO15  -   EXT_GPIO1
  44 GPIO16  -   EXT_GPIO2
  45 GPIO17  -   EXT_GPIO3
  46 GPIO24  -   EXT_GPIO4
  47 GPIO25  -   EXT_GPIO5
  48 GPIO26  -   EXT_GPIO6
  49 GPIO27  -   EXT_GPIO7
  50 GPIO28  -   EXT_GPIO8
  51 GPIO29  -   EXT_GPIO9
  52 GPIO30  -   EXT_GPIO10
  53 GPIO31  -   EXT_GPIO11
  54 GPIO57  -   EXT_GPIO12
  55 GPIO74  -   EXT_IRQ1
  56 GPIO75  -   EXT_IRQ2
  57 GPIO76  -   EXT_IRQ3
  58 GPIO77  -   EXT_IRQ4
  59 GPIO78  -   EXT_IRQ5
  60 GPIO79  -   EXT_IRQ6
  61 GPIO80  -   EXT_IRQ7
  62 GPIO81  -   EXT_IRQ8
  63 GPIO87  -   VCCIO_PWREN (External Device PWREN)
  64
  65 Dallas 1-Wire   - Leave unconfigured for now...
  66 -------------
  67 GPIO0_2 -   DS - 1Wire
  68
  69 Ethernet
  70 --------
  71 GPIO1   -   DM9000 PWR
  72 GPIO9   -   DM9K_nIRQ
  73 GPIO36  -   DM9K_RESET
  74
  75 Keypad  - Leave unconfigured by for now...
  76 ------
  77 GPIO1_2 -   KP_DKIN0
  78 GPIO5_2 -   KP_MKOUT7
  79 GPIO82  -   KP_DKIN1
  80 GPIO85  -   KP_DKIN2
  81 GPIO86  -   KP_DKIN3
  82 GPIO113 -   KP_MKIN0
  83 GPIO114 -   KP_MKIN1
  84 GPIO115 -   KP_MKIN2
  85 GPIO116 -   KP_MKIN3
  86 GPIO117 -   KP_MKIN4
  87 GPIO118 -   KP_MKIN5
  88 GPIO119 -   KP_MKIN6
  89 GPIO120 -   KP_MKIN7
  90 GPIO121 -   KP_MKOUT0
  91 GPIO122 -   KP_MKOUT1
  92 GPIO122 -   KP_MKOUT2
  93 GPIO123 -   KP_MKOUT3
  94 GPIO124 -   KP_MKOUT4
  95 GPIO125 -   KP_MKOUT5
  96 GPIO127 -   KP_MKOUT6
  97
  98 Data Bus    - Leave unconfigured for now...
  99 --------
 100 GPIO2   -   nWait (Data Bus)
 101
 102 USB Device
 103 ----------
 104 GPIO4_2 -   USBD_PULLUP
 105 GPIO10  -   UTM_CLK (USB Device UTM Clk)
 106 GPIO49  -   USB 2.0 Device UTM_DATA0
 107 GPIO50  -   USB 2.0 Device UTM_DATA1
 108 GPIO51  -   USB 2.0 Device UTM_DATA2
 109 GPIO52  -   USB 2.0 Device UTM_DATA3
 110 GPIO53  -   USB 2.0 Device UTM_DATA4
 111 GPIO54  -   USB 2.0 Device UTM_DATA5
 112 GPIO55  -   USB 2.0 Device UTM_DATA6
 113 GPIO56  -   USB 2.0 Device UTM_DATA7
 114 GPIO58  -   UTM_RXVALID (USB 2.0 Device)
 115 GPIO59  -   UTM_RXACTIVE (USB 2.0 Device)
 116 GPIO60  -   UTM_RXERROR
 117 GPIO61  -   UTM_OPMODE0
 118 GPIO62  -   UTM_OPMODE1
 119 GPIO71  -   USBD_INT    (USB Device?)
 120 GPIO73  -   UTM_TXREADY (USB 2.0 Device)
 121 GPIO83  -   UTM_TXVALID (USB 2.0 Device)
 122 GPIO98  -   UTM_RESET   (USB 2.0 device)
 123 GPIO99  -   UTM_XCVR_SELECT
 124 GPIO100 -   UTM_TERM_SELECT
 125 GPIO101 -   UTM_SUSPENDM_X
 126 GPIO102 -   UTM_LINESTATE0
 127 GPIO103 -   UTM_LINESTATE1
 128
 129 Card-Bus Interface  - Leave unconfigured for now...
 130 ------------------
 131 GPIO5   -   nPIOR (I/O space output enable)
 132 GPIO6   -   nPIOW (I/O space write enable)
 133 GPIO7   -   nIOS16 (Input from I/O space telling size of data bus)
 134 GPIO8   -   nPWAIT (Input for inserting wait states)
 135
 136 LCD
 137 ---
 138 GPIO6_2     -   LDD0
 139 GPIO7_2     -   LDD1
 140 GPIO8_2     -   LDD2
 141 GPIO9_2     -   LDD3
 142 GPIO11_2    -   LDD5
 143 GPIO12_2    -   LDD6
 144 GPIO13_2    -   LDD7
 145 GPIO14_2    -   VSYNC
 146 GPIO15_2    -   HSYNC
 147 GPIO16_2    -   VCLK
 148 GPIO17_2    -   HCLK
 149 GPIO18_2    -   VDEN
 150 GPIO63      -   LDD8    (CPU LCD)
 151 GPIO64      -   LDD9    (CPU LCD)
 152 GPIO65      -   LDD10   (CPU LCD)
 153 GPIO66      -   LDD11   (CPU LCD)
 154 GPIO67      -   LDD12   (CPU LCD)
 155 GPIO68      -   LDD13   (CPU LCD)
 156 GPIO69      -   LDD14   (CPU LCD)
 157 GPIO70      -   LDD15   (CPU LCD)
 158 GPIO88      -   VCCLCD_PWREN (LCD Panel PWREN)
 159 GPIO97      -   BACKLIGHT_EN
 160 GPIO104     -   LCD_PWREN
 161
 162 PWM   - Leave unconfigured for now...
 163 ---
 164 GPIO11  -   PWM0
 165 GPIO12  -   PWM1
 166 GPIO13  -   PWM2
 167 GPIO14  -   PWM3
 168
 169 SD-CARD
 170 -------
 171 GPIO18  -   SDDATA0
 172 GPIO19  -   SDDATA1
 173 GPIO20  -   SDDATA2
 174 GPIO21  -   SDDATA3
 175 GPIO22  -   SDCLK
 176 GPIO23  -   SDCMD
 177 GPIO72  -   SD_WP
 178 GPIO84  -   SD_nIRQ_CD  (SD-Card)
 179
 180 I2C
 181 ---
 182 GPIO32  -   I2CSCL
 183 GPIO33  -   I2CSDA
 184
 185 AC97
 186 ----
 187 GPIO35  -   AC97_SDATA_IN
 188 GPIO37  -   AC97_SDATA_OUT
 189 GPIO38  -   AC97_SYNC
 190 GPIO39  -   AC97_BITCLK
 191 GPIO40  -   AC97_nRESET
 192
 193 UART1
 194 -----
 195 GPIO41  -   UART_RXD1
 196 GPIO42  -   UART_TXD1
 197 GPIO43  -   UART_CTS1
 198 GPIO44  -   UART_DCD1
 199 GPIO45  -   UART_DSR1
 200 GPIO46  -   UART_nRI1
 201 GPIO47  -   UART_DTR1
 202 GPIO48  -   UART_RTS1
 203
 204 UART2
 205 -----
 206 GPIO109 -   RTS2
 207 GPIO110 -   RXD2
 208 GPIO111 -   TXD2
 209 GPIO112 -   nCTS2
 210
 211 UART3
 212 -----
 213 GPIO105 -   nCTS3
 214 GPIO106 -   nRTS3
 215 GPIO107 -   TXD3
 216 GPIO108 -   RXD3
 217
 218 SSP3    - Leave unconfigured for now...
 219 ----
 220 GPIO89  -   SSP3_CLK
 221 GPIO90  -   SSP3_SFRM
 222 GPIO91  -   SSP3_TXD
 223 GPIO92  -   SSP3_RXD
 224
 225 SSP4
 226 GPIO93  -   SSP4_CLK
 227 GPIO94  -   SSP4_SFRM
 228 GPIO95  -   SSP4_TXD
 229 GPIO96  -   SSP4_RXD
 230 */
 231
 232 static mfp_cfg_t mfp_cfg[] __initdata = {
 233         /* USB */
 234         GPIO10_UTM_CLK,
 235         GPIO49_U2D_PHYDATA_0,
 236         GPIO50_U2D_PHYDATA_1,
 237         GPIO51_U2D_PHYDATA_2,
 238         GPIO52_U2D_PHYDATA_3,
 239         GPIO53_U2D_PHYDATA_4,
 240         GPIO54_U2D_PHYDATA_5,
 241         GPIO55_U2D_PHYDATA_6,
 242         GPIO56_U2D_PHYDATA_7,
 243         GPIO58_UTM_RXVALID,
 244         GPIO59_UTM_RXACTIVE,
 245         GPIO60_U2D_RXERROR,
 246         GPIO61_U2D_OPMODE0,
 247         GPIO62_U2D_OPMODE1,
 248         GPIO71_GPIO, /* USBD_INT */
 249         GPIO73_UTM_TXREADY,
 250         GPIO83_U2D_TXVALID,
 251         GPIO98_U2D_RESET,
 252         GPIO99_U2D_XCVR_SEL,
 253         GPIO100_U2D_TERM_SEL,
 254         GPIO101_U2D_SUSPEND,
 255         GPIO102_UTM_LINESTATE_0,
 256         GPIO103_UTM_LINESTATE_1,
 257         GPIO4_2_GPIO | MFP_PULL_HIGH, /* UTM_PULLUP */
 258
 259         /* DM9000 */
 260         GPIO1_GPIO,
 261         GPIO9_GPIO,
 262         GPIO36_GPIO,
 263
 264         /* AC97 */
 265         GPIO35_AC97_SDATA_IN_0,
 266         GPIO37_AC97_SDATA_OUT,
 267         GPIO38_AC97_SYNC,
 268         GPIO39_AC97_BITCLK,
 269         GPIO40_AC97_nACRESET,
 270
 271         /* UARTS */
 272         GPIO41_UART1_RXD,
 273         GPIO42_UART1_TXD,
 274         GPIO43_UART1_CTS,
 275         GPIO44_UART1_DCD,
 276         GPIO45_UART1_DSR,
 277         GPIO46_UART1_RI,
 278         GPIO47_UART1_DTR,
 279         GPIO48_UART1_RTS,
 280
 281         GPIO109_UART2_RTS,
 282         GPIO110_UART2_RXD,
 283         GPIO111_UART2_TXD,
 284         GPIO112_UART2_CTS,
 285
 286         GPIO105_UART3_CTS,
 287         GPIO106_UART3_RTS,
 288         GPIO107_UART3_TXD,
 289         GPIO108_UART3_RXD,
 290
 291         GPIO78_GPIO,
 292         GPIO79_GPIO,
 293         GPIO80_GPIO,
 294         GPIO81_GPIO,
 295
 296         /* I2C */
 297         GPIO32_I2C_SCL,
 298         GPIO33_I2C_SDA,
 299
 300         /* MMC */
 301         GPIO18_MMC1_DAT0,
 302         GPIO19_MMC1_DAT1,
 303         GPIO20_MMC1_DAT2,
 304         GPIO21_MMC1_DAT3,
 305         GPIO22_MMC1_CLK,
 306         GPIO23_MMC1_CMD,
 307         GPIO72_GPIO | MFP_PULL_HIGH, /* Card Detect */
 308         GPIO84_GPIO | MFP_PULL_LOW, /* Write Protect */
 309
 310         /* IRQ */
 311         GPIO74_GPIO | MFP_LPM_EDGE_RISE, /* EXT_IRQ1 */
 312         GPIO75_GPIO | MFP_LPM_EDGE_RISE, /* EXT_IRQ2 */
 313         GPIO76_GPIO | MFP_LPM_EDGE_RISE, /* EXT_IRQ3 */
 314         GPIO77_GPIO | MFP_LPM_EDGE_RISE, /* EXT_IRQ4 */
 315         GPIO78_GPIO | MFP_LPM_EDGE_RISE, /* EXT_IRQ5 */
 316         GPIO79_GPIO | MFP_LPM_EDGE_RISE, /* EXT_IRQ6 */
 317         GPIO80_GPIO | MFP_LPM_EDGE_RISE, /* EXT_IRQ7 */
 318         GPIO81_GPIO | MFP_LPM_EDGE_RISE  /* EXT_IRQ8 */
 319 };
 320
 321 /* MMC/MCI Support */
 322 #if defined(CONFIG_MMC)
 323 static struct pxamci_platform_data mxm_8x10_mci_platform_data = {
 324         .ocr_mask = MMC_VDD_32_33 | MMC_VDD_33_34,
 325         .detect_delay_ms = 10,
 326 };
 327
 328 static struct gpiod_lookup_table mxm_8x10_mci_gpio_table = {
 329         .dev_id = "pxa2xx-mci.0",
 330         .table = {
 331                 /* Card detect on GPIO 72 */
 332                 GPIO_LOOKUP("gpio-pxa", MXM_8X10_SD_nCD,
 333                             "cd", GPIO_ACTIVE_LOW),
 334                 /* Write protect on GPIO 84 */
 335                 GPIO_LOOKUP("gpio-pxa", MXM_8X10_SD_WP,
 336                             "wp", GPIO_ACTIVE_LOW),
 337                 { },
 338         },
 339 };
 340
 341 void __init mxm_8x10_mmc_init(void)
 342 {
 343         gpiod_add_lookup_table(&mxm_8x10_mci_gpio_table);
 344         pxa_set_mci_info(&mxm_8x10_mci_platform_data);
 345 }
 346 #endif
 347
 348 /* USB Open Host Controller Interface */
 349 static struct pxaohci_platform_data mxm_8x10_ohci_platform_data = {
 350         .port_mode = PMM_NPS_MODE,
 351         .flags = ENABLE_PORT_ALL
 352 };
 353
 354 void __init mxm_8x10_usb_host_init(void)
 355 {
 356         pxa_set_ohci_info(&mxm_8x10_ohci_platform_data);
 357 }
 358
 359 /* AC97 Sound Support */
 360 static struct platform_device mxm_8x10_ac97_device = {
 361         .name = "pxa2xx-ac97"
 362 };
 363
 364 void __init mxm_8x10_ac97_init(void)
 365 {
 366         platform_device_register(&mxm_8x10_ac97_device);
 367 }
 368
 369 /* NAND flash Support */
 370 #if IS_ENABLED(CONFIG_MTD_NAND_MARVELL)
 371 #define NAND_BLOCK_SIZE SZ_128K
 372 #define NB(x)           (NAND_BLOCK_SIZE * (x))
 373 static struct mtd_partition mxm_8x10_nand_partitions[] = {
 374         [0] = {
 375                .name = "boot",
 376                .size = NB(0x002),
 377                .offset = NB(0x000),
 378                .mask_flags = MTD_WRITEABLE
 379         },
 380         [1] = {
 381                .name = "kernel",
 382                .size = NB(0x010),
 383                .offset = NB(0x002),
 384                .mask_flags = MTD_WRITEABLE
 385         },
 386         [2] = {
 387                .name = "root",
 388                .size = NB(0x36c),
 389                .offset = NB(0x012)
 390         },
 391         [3] = {
 392                .name = "bbt",
 393                .size = NB(0x082),
 394                .offset = NB(0x37e),
 395                .mask_flags = MTD_WRITEABLE
 396         }
 397 };
 398
 399 static struct pxa3xx_nand_platform_data mxm_8x10_nand_info = {
 400         .keep_config    = 1,
 401         .parts          = mxm_8x10_nand_partitions,
 402         .nr_parts       = ARRAY_SIZE(mxm_8x10_nand_partitions)
 403 };
 404
 405 static void __init mxm_8x10_nand_init(void)
 406 {
 407         pxa3xx_set_nand_info(&mxm_8x10_nand_info);
 408 }
 409 #else
 410 static inline void mxm_8x10_nand_init(void) {}
 411 #endif /* IS_ENABLED(CONFIG_MTD_NAND_MARVELL) */
 412
 413 /* Ethernet support: Davicom DM9000 */
 414 static struct resource dm9k_resources[] = {
 415         [0] = {
 416                .start = MXM_8X10_ETH_PHYS + 0x300,
 417                .end = MXM_8X10_ETH_PHYS + 0x300,
 418                .flags = IORESOURCE_MEM
 419         },
 420         [1] = {
 421                .start = MXM_8X10_ETH_PHYS + 0x308,
 422                .end = MXM_8X10_ETH_PHYS + 0x308,
 423                .flags = IORESOURCE_MEM
 424         },
 425         [2] = {
 426                .start = PXA_GPIO_TO_IRQ(mfp_to_gpio(MFP_PIN_GPIO9)),
 427                .end = PXA_GPIO_TO_IRQ(mfp_to_gpio(MFP_PIN_GPIO9)),
 428                .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE
 429         }
 430 };
 431
 432 static struct dm9000_plat_data dm9k_plat_data = {
 433         .flags = DM9000_PLATF_16BITONLY
 434 };
 435
 436 static struct platform_device dm9k_device = {
 437         .name = "dm9000",
 438         .id = 0,
 439         .num_resources = ARRAY_SIZE(dm9k_resources),
 440         .resource = dm9k_resources,
 441         .dev = {
 442                 .platform_data = &dm9k_plat_data
 443         }
 444 };
 445
 446 static void __init mxm_8x10_ethernet_init(void)
 447 {
 448         platform_device_register(&dm9k_device);
 449 }
 450
 451 /* PXA UARTs */
 452 static void __init mxm_8x10_uarts_init(void)
 453 {
 454         pxa_set_ffuart_info(NULL);
 455         pxa_set_btuart_info(NULL);
 456         pxa_set_stuart_info(NULL);
 457 }
 458
 459 /* I2C and Real Time Clock */
 460 static struct i2c_board_info __initdata mxm_8x10_i2c_devices[] = {
 461         {
 462                 I2C_BOARD_INFO("ds1337", 0x68)
 463         }
 464 };
 465
 466 static void __init mxm_8x10_i2c_init(void)
 467 {
 468         i2c_register_board_info(0, mxm_8x10_i2c_devices,
 469                                 ARRAY_SIZE(mxm_8x10_i2c_devices));
 470         pxa_set_i2c_info(NULL);
 471 }
 472
 473 void __init mxm_8x10_barebones_init(void)
 474 {
 475         pxa3xx_mfp_config(ARRAY_AND_SIZE(mfp_cfg));
 476
 477         mxm_8x10_uarts_init();
 478         mxm_8x10_nand_init();
 479         mxm_8x10_i2c_init();
 480         mxm_8x10_ethernet_init();
 481 }