arm/mach-pxa/palmtc.c

0001 // SPDX-License-Identifier: GPL-2.0-only
0002 /*
0003  * linux/arch/arm/mach-pxa/palmtc.c
0004  *
0005  * Support for the Palm Tungsten|C
0006  *
0007  * Author:  Marek Vasut <marek.vasut@gmail.com>
0008  *
0009  * Based on work of:
0010  *      Petr Blaha <p3t3@centrum.cz>
0011  *      Chetan S. Kumar <shivakumar.chetan@gmail.com>
0012  */
0013
0014 #include <linux/platform_device.h>
0015 #include <linux/delay.h>
0016 #include <linux/irq.h>
0017 #include <linux/input.h>
0018 #include <linux/pwm.h>
0019 #include <linux/pwm_backlight.h>
0020 #include <linux/gpio/machine.h>
0021 #include <linux/input/matrix_keypad.h>
0022 #include <linux/ucb1400.h>
0023 #include <linux/power_supply.h>
0024 #include <linux/gpio_keys.h>
0025 #include <linux/mtd/physmap.h>
0026
0027 #include <asm/mach-types.h>
0028 #include <asm/mach/arch.h>
0029 #include <asm/mach/map.h>
0030
0031 #include "pxa25x.h"
0032 #include <linux/platform_data/asoc-pxa.h>
0033 #include "palmtc.h"
0034 #include <linux/platform_data/mmc-pxamci.h>
0035 #include <linux/platform_data/video-pxafb.h>
0036 #include <linux/platform_data/irda-pxaficp.h>
0037 #include "udc.h"
0038
0039 #include "generic.h"
0040 #include "devices.h"
0041
0042 /******************************************************************************
0043  * Pin configuration
0044  ******************************************************************************/
0045 static unsigned long palmtc_pin_config[] __initdata = {
0046     /* MMC */
0047     GPIO6_MMC_CLK,
0048     GPIO8_MMC_CS0,
0049     GPIO12_GPIO,    /* detect */
0050     GPIO32_GPIO,    /* power */
0051     GPIO54_GPIO,    /* r/o switch */
0052
0053     /* PCMCIA */
0054     GPIO52_nPCE_1,
0055     GPIO53_nPCE_2,
0056     GPIO50_nPIOR,
0057     GPIO51_nPIOW,
0058     GPIO49_nPWE,
0059     GPIO48_nPOE,
0060     GPIO52_nPCE_1,
0061     GPIO53_nPCE_2,
0062     GPIO57_nIOIS16,
0063     GPIO56_nPWAIT,
0064
0065     /* AC97 */
0066     GPIO28_AC97_BITCLK,
0067     GPIO29_AC97_SDATA_IN_0,
0068     GPIO30_AC97_SDATA_OUT,
0069     GPIO31_AC97_SYNC,
0070
0071     /* IrDA */
0072     GPIO45_GPIO,    /* ir disable */
0073     GPIO46_FICP_RXD,
0074     GPIO47_FICP_TXD,
0075
0076     /* PWM */
0077     GPIO17_PWM1_OUT,
0078
0079     /* USB */
0080     GPIO4_GPIO, /* detect */
0081     GPIO36_GPIO,    /* pullup */
0082
0083     /* LCD */
0084     GPIOxx_LCD_TFT_16BPP,
0085
0086     /* MATRIX KEYPAD */
0087     GPIO0_GPIO | WAKEUP_ON_EDGE_BOTH,   /* in 0 */
0088     GPIO9_GPIO | WAKEUP_ON_EDGE_BOTH,   /* in 1 */
0089     GPIO10_GPIO | WAKEUP_ON_EDGE_BOTH,  /* in 2 */
0090     GPIO11_GPIO | WAKEUP_ON_EDGE_BOTH,  /* in 3 */
0091     GPIO18_GPIO | MFP_LPM_DRIVE_LOW,    /* out 0 */
0092     GPIO19_GPIO | MFP_LPM_DRIVE_LOW,    /* out 1 */
0093     GPIO20_GPIO | MFP_LPM_DRIVE_LOW,    /* out 2 */
0094     GPIO21_GPIO | MFP_LPM_DRIVE_LOW,    /* out 3 */
0095     GPIO22_GPIO | MFP_LPM_DRIVE_LOW,    /* out 4 */
0096     GPIO23_GPIO | MFP_LPM_DRIVE_LOW,    /* out 5 */
0097     GPIO24_GPIO | MFP_LPM_DRIVE_LOW,    /* out 6 */
0098     GPIO25_GPIO | MFP_LPM_DRIVE_LOW,    /* out 7 */
0099     GPIO26_GPIO | MFP_LPM_DRIVE_LOW,    /* out 8 */
0100     GPIO27_GPIO | MFP_LPM_DRIVE_LOW,    /* out 9 */
0101     GPIO79_GPIO | MFP_LPM_DRIVE_LOW,    /* out 10 */
0102     GPIO80_GPIO | MFP_LPM_DRIVE_LOW,    /* out 11 */
0103
0104     /* PXA GPIO KEYS */
0105     GPIO7_GPIO | WAKEUP_ON_EDGE_BOTH,   /* hotsync button on cradle */
0106
0107     /* MISC */
0108     GPIO1_RST,  /* reset */
0109     GPIO2_GPIO, /* earphone detect */
0110     GPIO16_GPIO,    /* backlight switch */
0111 };
0112
0113 /******************************************************************************
0114  * SD/MMC card controller
0115  ******************************************************************************/
0116 #if defined(CONFIG_MMC_PXA) || defined(CONFIG_MMC_PXA_MODULE)
0117 static struct pxamci_platform_data palmtc_mci_platform_data = {
0118     .ocr_mask       = MMC_VDD_32_33 | MMC_VDD_33_34,
0119     .detect_delay_ms    = 200,
0120 };
0121
0122 static struct gpiod_lookup_table palmtc_mci_gpio_table = {
0123     .dev_id = "pxa2xx-mci.0",
0124     .table = {
0125         GPIO_LOOKUP("gpio-pxa", GPIO_NR_PALMTC_SD_DETECT_N,
0126                 "cd", GPIO_ACTIVE_LOW),
0127         GPIO_LOOKUP("gpio-pxa", GPIO_NR_PALMTC_SD_READONLY,
0128                 "wp", GPIO_ACTIVE_LOW),
0129         GPIO_LOOKUP("gpio-pxa", GPIO_NR_PALMTC_SD_POWER,
0130                 "power", GPIO_ACTIVE_HIGH),
0131         { },
0132     },
0133 };
0134
0135 static void __init palmtc_mmc_init(void)
0136 {
0137     gpiod_add_lookup_table(&palmtc_mci_gpio_table);
0138     pxa_set_mci_info(&palmtc_mci_platform_data);
0139 }
0140 #else
0141 static inline void palmtc_mmc_init(void) {}
0142 #endif
0143
0144 /******************************************************************************
0145  * GPIO keys
0146  ******************************************************************************/
0147 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
0148 static struct gpio_keys_button palmtc_pxa_buttons[] = {
0149     {KEY_F8, GPIO_NR_PALMTC_HOTSYNC_BUTTON, 1, "HotSync Button", EV_KEY, 1},
0150 };
0151
0152 static struct gpio_keys_platform_data palmtc_pxa_keys_data = {
0153     .buttons    = palmtc_pxa_buttons,
0154     .nbuttons   = ARRAY_SIZE(palmtc_pxa_buttons),
0155 };
0156
0157 static struct platform_device palmtc_pxa_keys = {
0158     .name   = "gpio-keys",
0159     .id = -1,
0160     .dev    = {
0161         .platform_data = &palmtc_pxa_keys_data,
0162     },
0163 };
0164
0165 static void __init palmtc_keys_init(void)
0166 {
0167     platform_device_register(&palmtc_pxa_keys);
0168 }
0169 #else
0170 static inline void palmtc_keys_init(void) {}
0171 #endif
0172
0173 /******************************************************************************
0174  * Backlight
0175  ******************************************************************************/
0176 #if defined(CONFIG_BACKLIGHT_PWM) || defined(CONFIG_BACKLIGHT_PWM_MODULE)
0177
0178 static struct gpiod_lookup_table palmtc_pwm_bl_gpio_table = {
0179     .dev_id = "pwm-backlight.0",
0180     .table = {
0181         GPIO_LOOKUP("gpio-pxa", GPIO_NR_PALMTC_BL_POWER,
0182                 "enable", GPIO_ACTIVE_HIGH),
0183     },
0184 };
0185
0186 static struct pwm_lookup palmtc_pwm_lookup[] = {
0187     PWM_LOOKUP("pxa25x-pwm.1", 0, "pwm-backlight.0", NULL, PALMTC_PERIOD_NS,
0188            PWM_POLARITY_NORMAL),
0189 };
0190
0191 static struct platform_pwm_backlight_data palmtc_backlight_data = {
0192     .max_brightness = PALMTC_MAX_INTENSITY,
0193     .dft_brightness = PALMTC_MAX_INTENSITY,
0194 };
0195
0196 static struct platform_device palmtc_backlight = {
0197     .name   = "pwm-backlight",
0198     .dev    = {
0199         .parent     = &pxa25x_device_pwm1.dev,
0200         .platform_data  = &palmtc_backlight_data,
0201     },
0202 };
0203
0204 static void __init palmtc_pwm_init(void)
0205 {
0206     gpiod_add_lookup_table(&palmtc_pwm_bl_gpio_table);
0207     pwm_add_table(palmtc_pwm_lookup, ARRAY_SIZE(palmtc_pwm_lookup));
0208     platform_device_register(&palmtc_backlight);
0209 }
0210 #else
0211 static inline void palmtc_pwm_init(void) {}
0212 #endif
0213
0214 /******************************************************************************
0215  * IrDA
0216  ******************************************************************************/
0217 #if defined(CONFIG_IRDA) || defined(CONFIG_IRDA_MODULE)
0218 static struct pxaficp_platform_data palmtc_ficp_platform_data = {
0219     .gpio_pwdown        = GPIO_NR_PALMTC_IR_DISABLE,
0220     .transceiver_cap    = IR_SIRMODE | IR_OFF,
0221 };
0222
0223 static void __init palmtc_irda_init(void)
0224 {
0225     pxa_set_ficp_info(&palmtc_ficp_platform_data);
0226 }
0227 #else
0228 static inline void palmtc_irda_init(void) {}
0229 #endif
0230
0231 /******************************************************************************
0232  * Keyboard
0233  ******************************************************************************/
0234 #if defined(CONFIG_KEYBOARD_MATRIX) || defined(CONFIG_KEYBOARD_MATRIX_MODULE)
0235 static const uint32_t palmtc_matrix_keys[] = {
0236     KEY(0, 0, KEY_F1),
0237     KEY(0, 1, KEY_X),
0238     KEY(0, 2, KEY_POWER),
0239     KEY(0, 3, KEY_TAB),
0240     KEY(0, 4, KEY_A),
0241     KEY(0, 5, KEY_Q),
0242     KEY(0, 6, KEY_LEFTSHIFT),
0243     KEY(0, 7, KEY_Z),
0244     KEY(0, 8, KEY_S),
0245     KEY(0, 9, KEY_W),
0246     KEY(0, 10, KEY_E),
0247     KEY(0, 11, KEY_UP),
0248
0249     KEY(1, 0, KEY_F2),
0250     KEY(1, 1, KEY_DOWN),
0251     KEY(1, 3, KEY_D),
0252     KEY(1, 4, KEY_C),
0253     KEY(1, 5, KEY_F),
0254     KEY(1, 6, KEY_R),
0255     KEY(1, 7, KEY_SPACE),
0256     KEY(1, 8, KEY_V),
0257     KEY(1, 9, KEY_G),
0258     KEY(1, 10, KEY_T),
0259     KEY(1, 11, KEY_LEFT),
0260
0261     KEY(2, 0, KEY_F3),
0262     KEY(2, 1, KEY_LEFTCTRL),
0263     KEY(2, 3, KEY_H),
0264     KEY(2, 4, KEY_Y),
0265     KEY(2, 5, KEY_N),
0266     KEY(2, 6, KEY_J),
0267     KEY(2, 7, KEY_U),
0268     KEY(2, 8, KEY_M),
0269     KEY(2, 9, KEY_K),
0270     KEY(2, 10, KEY_I),
0271     KEY(2, 11, KEY_RIGHT),
0272
0273     KEY(3, 0, KEY_F4),
0274     KEY(3, 1, KEY_ENTER),
0275     KEY(3, 3, KEY_DOT),
0276     KEY(3, 4, KEY_L),
0277     KEY(3, 5, KEY_O),
0278     KEY(3, 6, KEY_LEFTALT),
0279     KEY(3, 7, KEY_ENTER),
0280     KEY(3, 8, KEY_BACKSPACE),
0281     KEY(3, 9, KEY_P),
0282     KEY(3, 10, KEY_B),
0283     KEY(3, 11, KEY_FN),
0284 };
0285
0286 const struct matrix_keymap_data palmtc_keymap_data = {
0287     .keymap         = palmtc_matrix_keys,
0288     .keymap_size        = ARRAY_SIZE(palmtc_matrix_keys),
0289 };
0290
0291 static const unsigned int palmtc_keypad_row_gpios[] = {
0292     0, 9, 10, 11
0293 };
0294
0295 static const unsigned int palmtc_keypad_col_gpios[] = {
0296     18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 79, 80
0297 };
0298
0299 static struct matrix_keypad_platform_data palmtc_keypad_platform_data = {
0300     .keymap_data    = &palmtc_keymap_data,
0301     .row_gpios  = palmtc_keypad_row_gpios,
0302     .num_row_gpios  = ARRAY_SIZE(palmtc_keypad_row_gpios),
0303     .col_gpios  = palmtc_keypad_col_gpios,
0304     .num_col_gpios  = ARRAY_SIZE(palmtc_keypad_col_gpios),
0305     .active_low = 1,
0306
0307     .debounce_ms        = 20,
0308     .col_scan_delay_us  = 5,
0309 };
0310
0311 static struct platform_device palmtc_keyboard = {
0312     .name   = "matrix-keypad",
0313     .id = -1,
0314     .dev    = {
0315         .platform_data = &palmtc_keypad_platform_data,
0316     },
0317 };
0318 static void __init palmtc_mkp_init(void)
0319 {
0320     platform_device_register(&palmtc_keyboard);
0321 }
0322 #else
0323 static inline void palmtc_mkp_init(void) {}
0324 #endif
0325
0326 /******************************************************************************
0327  * UDC
0328  ******************************************************************************/
0329 #if defined(CONFIG_USB_PXA25X)||defined(CONFIG_USB_PXA25X_MODULE)
0330 static struct gpiod_lookup_table palmtc_udc_gpiod_table = {
0331     .dev_id = "gpio-vbus",
0332     .table = {
0333         GPIO_LOOKUP("gpio-pxa", GPIO_NR_PALMTC_USB_DETECT_N,
0334                 "vbus", GPIO_ACTIVE_LOW),
0335         GPIO_LOOKUP("gpio-pxa", GPIO_NR_PALMTC_USB_POWER,
0336                 "pullup", GPIO_ACTIVE_HIGH),
0337         { },
0338     },
0339 };
0340
0341 static struct platform_device palmtc_gpio_vbus = {
0342     .name   = "gpio-vbus",
0343     .id = -1,
0344 };
0345
0346 static void __init palmtc_udc_init(void)
0347 {
0348     gpiod_add_lookup_table(&palmtc_udc_gpiod_table);
0349     platform_device_register(&palmtc_gpio_vbus);
0350 };
0351 #else
0352 static inline void palmtc_udc_init(void) {}
0353 #endif
0354
0355 /******************************************************************************
0356  * Touchscreen / Battery / GPIO-extender
0357  ******************************************************************************/
0358 #if defined(CONFIG_TOUCHSCREEN_UCB1400) || \
0359     defined(CONFIG_TOUCHSCREEN_UCB1400_MODULE)
0360 static struct platform_device palmtc_ucb1400_device = {
0361     .name   = "ucb1400_core",
0362     .id = -1,
0363 };
0364
0365 static void __init palmtc_ts_init(void)
0366 {
0367     pxa_set_ac97_info(NULL);
0368     platform_device_register(&palmtc_ucb1400_device);
0369 }
0370 #else
0371 static inline void palmtc_ts_init(void) {}
0372 #endif
0373
0374 /******************************************************************************
0375  * LEDs
0376  ******************************************************************************/
0377 #if defined(CONFIG_LEDS_GPIO) || defined(CONFIG_LEDS_GPIO_MODULE)
0378 struct gpio_led palmtc_gpio_leds[] = {
0379 {
0380     .name           = "palmtc:green:user",
0381     .default_trigger    = "none",
0382     .gpio           = GPIO_NR_PALMTC_LED_POWER,
0383     .active_low     = 1,
0384 }, {
0385     .name           = "palmtc:vibra:vibra",
0386     .default_trigger    = "none",
0387     .gpio           = GPIO_NR_PALMTC_VIBRA_POWER,
0388     .active_low     = 1,
0389 }
0390
0391 };
0392
0393 static struct gpio_led_platform_data palmtc_gpio_led_info = {
0394     .leds       = palmtc_gpio_leds,
0395     .num_leds   = ARRAY_SIZE(palmtc_gpio_leds),
0396 };
0397
0398 static struct platform_device palmtc_leds = {
0399     .name   = "leds-gpio",
0400     .id = -1,
0401     .dev    = {
0402         .platform_data  = &palmtc_gpio_led_info,
0403     }
0404 };
0405
0406 static void __init palmtc_leds_init(void)
0407 {
0408     platform_device_register(&palmtc_leds);
0409 }
0410 #else
0411 static inline void palmtc_leds_init(void) {}
0412 #endif
0413
0414 /******************************************************************************
0415  * NOR Flash
0416  ******************************************************************************/
0417 #if defined(CONFIG_MTD_PHYSMAP) || defined(CONFIG_MTD_PHYSMAP_MODULE)
0418 static struct resource palmtc_flash_resource = {
0419     .start  = PXA_CS0_PHYS,
0420     .end    = PXA_CS0_PHYS + SZ_16M - 1,
0421     .flags  = IORESOURCE_MEM,
0422 };
0423
0424 static struct mtd_partition palmtc_flash_parts[] = {
0425     {
0426         .name   = "U-Boot Bootloader",
0427         .offset = 0x0,
0428         .size   = 0x40000,
0429     },
0430     {
0431         .name   = "Linux Kernel",
0432         .offset = 0x40000,
0433         .size   = 0x2c0000,
0434     },
0435     {
0436         .name   = "Filesystem",
0437         .offset = 0x300000,
0438         .size   = 0xcc0000,
0439     },
0440     {
0441         .name   = "U-Boot Environment",
0442         .offset = 0xfc0000,
0443         .size   = MTDPART_SIZ_FULL,
0444     },
0445 };
0446
0447 static struct physmap_flash_data palmtc_flash_data = {
0448     .width      = 4,
0449     .parts      = palmtc_flash_parts,
0450     .nr_parts   = ARRAY_SIZE(palmtc_flash_parts),
0451 };
0452
0453 static struct platform_device palmtc_flash = {
0454     .name       = "physmap-flash",
0455     .id     = -1,
0456     .resource   = &palmtc_flash_resource,
0457     .num_resources  = 1,
0458     .dev = {
0459         .platform_data  = &palmtc_flash_data,
0460     },
0461 };
0462
0463 static void __init palmtc_nor_init(void)
0464 {
0465     platform_device_register(&palmtc_flash);
0466 }
0467 #else
0468 static inline void palmtc_nor_init(void) {}
0469 #endif
0470
0471 /******************************************************************************
0472  * Framebuffer
0473  ******************************************************************************/
0474 #if defined(CONFIG_FB_PXA) || defined(CONFIG_FB_PXA_MODULE)
0475 static struct pxafb_mode_info palmtc_lcd_modes[] = {
0476     {
0477         .pixclock   = 115384,
0478         .xres       = 320,
0479         .yres       = 320,
0480         .bpp        = 16,
0481
0482         .left_margin    = 27,
0483         .right_margin   = 7,
0484         .upper_margin   = 7,
0485         .lower_margin   = 8,
0486
0487         .hsync_len  = 6,
0488         .vsync_len  = 1,
0489     },
0490 };
0491
0492 static struct pxafb_mach_info palmtc_lcd_screen = {
0493     .modes          = palmtc_lcd_modes,
0494     .num_modes      = ARRAY_SIZE(palmtc_lcd_modes),
0495     .lcd_conn       = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL,
0496 };
0497
0498 static void __init palmtc_lcd_init(void)
0499 {
0500     pxa_set_fb_info(NULL, &palmtc_lcd_screen);
0501 }
0502 #else
0503 static inline void palmtc_lcd_init(void) {}
0504 #endif
0505
0506 /******************************************************************************
0507  * Machine init
0508  ******************************************************************************/
0509 static void __init palmtc_init(void)
0510 {
0511     pxa2xx_mfp_config(ARRAY_AND_SIZE(palmtc_pin_config));
0512
0513     pxa_set_ffuart_info(NULL);
0514     pxa_set_btuart_info(NULL);
0515     pxa_set_stuart_info(NULL);
0516     pxa_set_hwuart_info(NULL);
0517
0518     palmtc_mmc_init();
0519     palmtc_keys_init();
0520     palmtc_pwm_init();
0521     palmtc_irda_init();
0522     palmtc_mkp_init();
0523     palmtc_udc_init();
0524     palmtc_ts_init();
0525     palmtc_nor_init();
0526     palmtc_lcd_init();
0527     palmtc_leds_init();
0528 };
0529
0530 MACHINE_START(PALMTC, "Palm Tungsten|C")
0531     .atag_offset    = 0x100,
0532     .map_io     = pxa25x_map_io,
0533     .nr_irqs    = PXA_NR_IRQS,
0534     .init_irq   = pxa25x_init_irq,
0535     .handle_irq = pxa25x_handle_irq,
0536     .init_time  = pxa_timer_init,
0537     .init_machine   = palmtc_init,
0538     .restart    = pxa_restart,
0539 MACHINE_END