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   1 /*
   2  *  linux/arch/arm/mach-pxa/littleton.c
   3  *
   4  *  Support for the Marvell Littleton Development Platform.
   5  *
   6  *  Author:     Jason Chagas (largely modified code)
   7  *  Created:    Nov 20, 2006
   8  *  Copyright:  (C) Copyright 2006 Marvell International Ltd.
   9  *
  10  *  2007-11-22  modified to align with latest kernel
  11  *              eric miao <eric.miao@marvell.com>
  12  *
  13  *  This program is free software; you can redistribute it and/or modify
  14  *  it under the terms of the GNU General Public License version 2 as
  15  *  publishhed by the Free Software Foundation.
  16  */
  17
  18 #include <linux/init.h>
  19 #include <linux/interrupt.h>
  20 #include <linux/delay.h>
  21 #include <linux/platform_device.h>
  22 #include <linux/clk.h>
  23
  24 #include <asm/types.h>
  25 #include <asm/setup.h>
  26 #include <asm/memory.h>
  27 #include <asm/mach-types.h>
  28 #include <asm/hardware.h>
  29 #include <asm/irq.h>
  30
  31 #include <asm/mach/arch.h>
  32 #include <asm/mach/map.h>
  33 #include <asm/mach/irq.h>
  34
  35 #include <asm/arch/pxa-regs.h>
  36 #include <asm/arch/mfp-pxa300.h>
  37 #include <asm/arch/gpio.h>
  38 #include <asm/arch/pxafb.h>
  39 #include <asm/arch/ssp.h>
  40 #include <asm/arch/pxa27x_keypad.h>
  41 #include <asm/arch/littleton.h>
  42
  43 #include "generic.h"
  44
  45 /* Littleton MFP configurations */
  46 static mfp_cfg_t littleton_mfp_cfg[] __initdata = {
  47         /* LCD */
  48         GPIO54_LCD_LDD_0,
  49         GPIO55_LCD_LDD_1,
  50         GPIO56_LCD_LDD_2,
  51         GPIO57_LCD_LDD_3,
  52         GPIO58_LCD_LDD_4,
  53         GPIO59_LCD_LDD_5,
  54         GPIO60_LCD_LDD_6,
  55         GPIO61_LCD_LDD_7,
  56         GPIO62_LCD_LDD_8,
  57         GPIO63_LCD_LDD_9,
  58         GPIO64_LCD_LDD_10,
  59         GPIO65_LCD_LDD_11,
  60         GPIO66_LCD_LDD_12,
  61         GPIO67_LCD_LDD_13,
  62         GPIO68_LCD_LDD_14,
  63         GPIO69_LCD_LDD_15,
  64         GPIO70_LCD_LDD_16,
  65         GPIO71_LCD_LDD_17,
  66         GPIO72_LCD_FCLK,
  67         GPIO73_LCD_LCLK,
  68         GPIO74_LCD_PCLK,
  69         GPIO75_LCD_BIAS,
  70
  71         /* SSP2 */
  72         GPIO25_SSP2_SCLK,
  73         GPIO17_SSP2_FRM,
  74         GPIO27_SSP2_TXD,
  75
  76         /* Debug Ethernet */
  77         GPIO90_GPIO,
  78
  79         /* Keypad */
  80         GPIO107_KP_DKIN_0,
  81         GPIO108_KP_DKIN_1,
  82         GPIO115_KP_MKIN_0,
  83         GPIO116_KP_MKIN_1,
  84         GPIO117_KP_MKIN_2,
  85         GPIO118_KP_MKIN_3,
  86         GPIO119_KP_MKIN_4,
  87         GPIO120_KP_MKIN_5,
  88         GPIO121_KP_MKOUT_0,
  89         GPIO122_KP_MKOUT_1,
  90         GPIO123_KP_MKOUT_2,
  91         GPIO124_KP_MKOUT_3,
  92         GPIO125_KP_MKOUT_4,
  93 };
  94
  95 static struct resource smc91x_resources[] = {
  96         [0] = {
  97                 .start  = (LITTLETON_ETH_PHYS + 0x300),
  98                 .end    = (LITTLETON_ETH_PHYS + 0xfffff),
  99                 .flags  = IORESOURCE_MEM,
 100         },
 101         [1] = {
 102                 .start  = IRQ_GPIO(mfp_to_gpio(MFP_PIN_GPIO90)),
 103                 .end    = IRQ_GPIO(mfp_to_gpio(MFP_PIN_GPIO90)),
 104                 .flags  = IORESOURCE_IRQ | IRQF_TRIGGER_FALLING,
 105         }
 106 };
 107
 108 static struct platform_device smc91x_device = {
 109         .name           = "smc91x",
 110         .id             = 0,
 111         .num_resources  = ARRAY_SIZE(smc91x_resources),
 112         .resource       = smc91x_resources,
 113 };
 114
 115 #if defined(CONFIG_FB_PXA) || defined(CONFIG_FB_PXA_MODULES)
 116 /* use bit 30, 31 as the indicator of command parameter number */
 117 #define CMD0(x)         ((0x00000000) | ((x) << 9))
 118 #define CMD1(x, x1)     ((0x40000000) | ((x) << 9) | 0x100 | (x1))
 119 #define CMD2(x, x1, x2) ((0x80000000) | ((x) << 18) | 0x20000 |\
 120                          ((x1) << 9) | 0x100 | (x2))
 121
 122 static uint32_t lcd_panel_reset[] = {
 123         CMD0(0x1), /* reset */
 124         CMD0(0x0), /* nop */
 125         CMD0(0x0), /* nop */
 126         CMD0(0x0), /* nop */
 127 };
 128
 129 static uint32_t lcd_panel_on[] = {
 130         CMD0(0x29),             /* Display ON */
 131         CMD2(0xB8, 0xFF, 0xF9), /* Output Control */
 132         CMD0(0x11),             /* Sleep out */
 133         CMD1(0xB0, 0x16),       /* Wake */
 134 };
 135
 136 static uint32_t lcd_panel_off[] = {
 137         CMD0(0x28),             /* Display OFF */
 138         CMD2(0xB8, 0x80, 0x02), /* Output Control */
 139         CMD0(0x10),             /* Sleep in */
 140         CMD1(0xB0, 0x00),       /* Deep stand by in */
 141 };
 142
 143 static uint32_t lcd_vga_pass_through[] = {
 144         CMD1(0xB0, 0x16),
 145         CMD1(0xBC, 0x80),
 146         CMD1(0xE1, 0x00),
 147         CMD1(0x36, 0x50),
 148         CMD1(0x3B, 0x00),
 149 };
 150
 151 static uint32_t lcd_qvga_pass_through[] = {
 152         CMD1(0xB0, 0x16),
 153         CMD1(0xBC, 0x81),
 154         CMD1(0xE1, 0x00),
 155         CMD1(0x36, 0x50),
 156         CMD1(0x3B, 0x22),
 157 };
 158
 159 static uint32_t lcd_vga_transfer[] = {
 160         CMD1(0xcf, 0x02),       /* Blanking period control (1) */
 161         CMD2(0xd0, 0x08, 0x04), /* Blanking period control (2) */
 162         CMD1(0xd1, 0x01),       /* CKV timing control on/off */
 163         CMD2(0xd2, 0x14, 0x00), /* CKV 1,2 timing control */
 164         CMD2(0xd3, 0x1a, 0x0f), /* OEV timing control */
 165         CMD2(0xd4, 0x1f, 0xaf), /* ASW timing control (1) */
 166         CMD1(0xd5, 0x14),       /* ASW timing control (2) */
 167         CMD0(0x21),             /* Invert for normally black display */
 168         CMD0(0x29),             /* Display on */
 169 };
 170
 171 static uint32_t lcd_qvga_transfer[] = {
 172         CMD1(0xd6, 0x02),       /* Blanking period control (1) */
 173         CMD2(0xd7, 0x08, 0x04), /* Blanking period control (2) */
 174         CMD1(0xd8, 0x01),       /* CKV timing control on/off */
 175         CMD2(0xd9, 0x00, 0x08), /* CKV 1,2 timing control */
 176         CMD2(0xde, 0x05, 0x0a), /* OEV timing control */
 177         CMD2(0xdf, 0x0a, 0x19), /* ASW timing control (1) */
 178         CMD1(0xe0, 0x0a),       /* ASW timing control (2) */
 179         CMD0(0x21),             /* Invert for normally black display */
 180         CMD0(0x29),             /* Display on */
 181 };
 182
 183 static uint32_t lcd_panel_config[] = {
 184         CMD2(0xb8, 0xff, 0xf9), /* Output control */
 185         CMD0(0x11),             /* sleep out */
 186         CMD1(0xba, 0x01),       /* Display mode (1) */
 187         CMD1(0xbb, 0x00),       /* Display mode (2) */
 188         CMD1(0x3a, 0x60),       /* Display mode 18-bit RGB */
 189         CMD1(0xbf, 0x10),       /* Drive system change control */
 190         CMD1(0xb1, 0x56),       /* Booster operation setup */
 191         CMD1(0xb2, 0x33),       /* Booster mode setup */
 192         CMD1(0xb3, 0x11),       /* Booster frequency setup */
 193         CMD1(0xb4, 0x02),       /* Op amp/system clock */
 194         CMD1(0xb5, 0x35),       /* VCS voltage */
 195         CMD1(0xb6, 0x40),       /* VCOM voltage */
 196         CMD1(0xb7, 0x03),       /* External display signal */
 197         CMD1(0xbd, 0x00),       /* ASW slew rate */
 198         CMD1(0xbe, 0x00),       /* Dummy data for QuadData operation */
 199         CMD1(0xc0, 0x11),       /* Sleep out FR count (A) */
 200         CMD1(0xc1, 0x11),       /* Sleep out FR count (B) */
 201         CMD1(0xc2, 0x11),       /* Sleep out FR count (C) */
 202         CMD2(0xc3, 0x20, 0x40), /* Sleep out FR count (D) */
 203         CMD2(0xc4, 0x60, 0xc0), /* Sleep out FR count (E) */
 204         CMD2(0xc5, 0x10, 0x20), /* Sleep out FR count (F) */
 205         CMD1(0xc6, 0xc0),       /* Sleep out FR count (G) */
 206         CMD2(0xc7, 0x33, 0x43), /* Gamma 1 fine tuning (1) */
 207         CMD1(0xc8, 0x44),       /* Gamma 1 fine tuning (2) */
 208         CMD1(0xc9, 0x33),       /* Gamma 1 inclination adjustment */
 209         CMD1(0xca, 0x00),       /* Gamma 1 blue offset adjustment */
 210         CMD2(0xec, 0x01, 0xf0), /* Horizontal clock cycles */
 211 };
 212
 213 static void ssp_reconfig(struct ssp_dev *dev, int nparam)
 214 {
 215         static int last_nparam = -1;
 216
 217         /* check if it is necessary to re-config SSP */
 218         if (nparam == last_nparam)
 219                 return;
 220
 221         ssp_disable(dev);
 222         ssp_config(dev, (nparam == 2) ? 0x0010058a : 0x00100581, 0x18, 0, 0);
 223
 224         last_nparam = nparam;
 225 }
 226
 227 static void ssp_send_cmd(uint32_t *cmd, int num)
 228 {
 229         static int ssp_initialized;
 230         static struct ssp_dev ssp2;
 231
 232         int i;
 233
 234         if (!ssp_initialized) {
 235                 ssp_init(&ssp2, 2, SSP_NO_IRQ);
 236                 ssp_initialized = 1;
 237         }
 238
 239         clk_enable(ssp2.ssp->clk);
 240         for (i = 0; i < num; i++, cmd++) {
 241                 ssp_reconfig(&ssp2, (*cmd >> 30) & 0x3);
 242                 ssp_write_word(&ssp2, *cmd & 0x3fffffff);
 243
 244                 /* FIXME: ssp_flush() is mandatory here to work */
 245                 ssp_flush(&ssp2);
 246         }
 247         clk_disable(ssp2.ssp->clk);
 248 }
 249
 250 static void littleton_lcd_power(int on, struct fb_var_screeninfo *var)
 251 {
 252         if (on) {
 253                 ssp_send_cmd(ARRAY_AND_SIZE(lcd_panel_on));
 254                 ssp_send_cmd(ARRAY_AND_SIZE(lcd_panel_reset));
 255                 if (var->xres > 240) {
 256                         /* VGA */
 257                         ssp_send_cmd(ARRAY_AND_SIZE(lcd_vga_pass_through));
 258                         ssp_send_cmd(ARRAY_AND_SIZE(lcd_panel_config));
 259                         ssp_send_cmd(ARRAY_AND_SIZE(lcd_vga_transfer));
 260                 } else {
 261                         /* QVGA */
 262                         ssp_send_cmd(ARRAY_AND_SIZE(lcd_qvga_pass_through));
 263                         ssp_send_cmd(ARRAY_AND_SIZE(lcd_panel_config));
 264                         ssp_send_cmd(ARRAY_AND_SIZE(lcd_qvga_transfer));
 265                 }
 266         } else
 267                 ssp_send_cmd(ARRAY_AND_SIZE(lcd_panel_off));
 268 }
 269
 270 static struct pxafb_mode_info tpo_tdo24mtea1_modes[] = {
 271         [0] = {
 272                 /* VGA */
 273                 .pixclock       = 38250,
 274                 .xres           = 480,
 275                 .yres           = 640,
 276                 .bpp            = 16,
 277                 .hsync_len      = 8,
 278                 .left_margin    = 8,
 279                 .right_margin   = 24,
 280                 .vsync_len      = 2,
 281                 .upper_margin   = 2,
 282                 .lower_margin   = 4,
 283                 .sync           = 0,
 284         },
 285         [1] = {
 286                 /* QVGA */
 287                 .pixclock       = 153000,
 288                 .xres           = 240,
 289                 .yres           = 320,
 290                 .bpp            = 16,
 291                 .hsync_len      = 8,
 292                 .left_margin    = 8,
 293                 .right_margin   = 88,
 294                 .vsync_len      = 2,
 295                 .upper_margin   = 2,
 296                 .lower_margin   = 2,
 297                 .sync           = 0,
 298         },
 299 };
 300
 301 static struct pxafb_mach_info littleton_lcd_info = {
 302         .modes                  = tpo_tdo24mtea1_modes,
 303         .num_modes              = 2,
 304         .lcd_conn               = LCD_COLOR_TFT_16BPP,
 305         .pxafb_lcd_power        = littleton_lcd_power,
 306 };
 307
 308 static void littleton_init_lcd(void)
 309 {
 310         set_pxa_fb_info(&littleton_lcd_info);
 311 }
 312 #else
 313 static inline void littleton_init_lcd(void) {};
 314 #endif /* CONFIG_FB_PXA || CONFIG_FB_PXA_MODULES */
 315
 316 #if defined(CONFIG_KEYBOARD_PXA27x) || defined(CONFIG_KEYBOARD_PXA27x_MODULES)
 317 static unsigned int littleton_matrix_key_map[] = {
 318         /* KEY(row, col, key_code) */
 319         KEY(1, 3, KEY_0), KEY(0, 0, KEY_1), KEY(1, 0, KEY_2), KEY(2, 0, KEY_3),
 320         KEY(0, 1, KEY_4), KEY(1, 1, KEY_5), KEY(2, 1, KEY_6), KEY(0, 2, KEY_7),
 321         KEY(1, 2, KEY_8), KEY(2, 2, KEY_9),
 322
 323         KEY(0, 3, KEY_KPASTERISK),      /* * */
 324         KEY(2, 3, KEY_KPDOT),           /* # */
 325
 326         KEY(5, 4, KEY_ENTER),
 327
 328         KEY(5, 0, KEY_UP),
 329         KEY(5, 1, KEY_DOWN),
 330         KEY(5, 2, KEY_LEFT),
 331         KEY(5, 3, KEY_RIGHT),
 332         KEY(3, 2, KEY_HOME),
 333         KEY(4, 1, KEY_END),
 334         KEY(3, 3, KEY_BACK),
 335
 336         KEY(4, 0, KEY_SEND),
 337         KEY(4, 2, KEY_VOLUMEUP),
 338         KEY(4, 3, KEY_VOLUMEDOWN),
 339
 340         KEY(3, 0, KEY_F22),     /* soft1 */
 341         KEY(3, 1, KEY_F23),     /* soft2 */
 342 };
 343
 344 static struct pxa27x_keypad_platform_data littleton_keypad_info = {
 345         .matrix_key_rows        = 6,
 346         .matrix_key_cols        = 5,
 347         .matrix_key_map         = littleton_matrix_key_map,
 348         .matrix_key_map_size    = ARRAY_SIZE(littleton_matrix_key_map),
 349
 350         .enable_rotary0         = 1,
 351         .rotary0_up_key         = KEY_UP,
 352         .rotary0_down_key       = KEY_DOWN,
 353
 354         .debounce_interval      = 30,
 355 };
 356 static void __init littleton_init_keypad(void)
 357 {
 358         pxa_set_keypad_info(&littleton_keypad_info);
 359 }
 360 #else
 361 static inline void littleton_init_keypad(void) {}
 362 #endif
 363
 364 static void __init littleton_init(void)
 365 {
 366         /* initialize MFP configurations */
 367         pxa3xx_mfp_config(ARRAY_AND_SIZE(littleton_mfp_cfg));
 368
 369         /*
 370          * Note: we depend bootloader set the correct
 371          * value to MSC register for SMC91x.
 372          */
 373         platform_device_register(&smc91x_device);
 374
 375         littleton_init_lcd();
 376         littleton_init_keypad();
 377 }
 378
 379 MACHINE_START(LITTLETON, "Marvell Form Factor Development Platform (aka Littleton)")
 380         .phys_io        = 0x40000000,
 381         .boot_params    = 0xa0000100,
 382         .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
 383         .map_io         = pxa_map_io,
 384         .init_irq       = pxa3xx_init_irq,
 385         .timer          = &pxa_timer,
 386         .init_machine   = littleton_init,
 387 MACHINE_END