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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 #include <linux/spi/spi.h>
  24 #include <linux/smc91x.h>
  25
  26 #include <asm/types.h>
  27 #include <asm/setup.h>
  28 #include <asm/memory.h>
  29 #include <asm/mach-types.h>
  30 #include <mach/hardware.h>
  31 #include <asm/irq.h>
  32
  33 #include <asm/mach/arch.h>
  34 #include <asm/mach/map.h>
  35 #include <asm/mach/irq.h>
  36
  37 #include <mach/pxa-regs.h>
  38 #include <mach/mfp-pxa300.h>
  39 #include <mach/gpio.h>
  40 #include <mach/pxafb.h>
  41 #include <mach/ssp.h>
  42 #include <mach/pxa2xx_spi.h>
  43 #include <mach/pxa27x_keypad.h>
  44 #include <mach/pxa3xx_nand.h>
  45 #include <mach/littleton.h>
  46
  47 #include "generic.h"
  48
  49 /* Littleton MFP configurations */
  50 static mfp_cfg_t littleton_mfp_cfg[] __initdata = {
  51         /* LCD */
  52         GPIO54_LCD_LDD_0,
  53         GPIO55_LCD_LDD_1,
  54         GPIO56_LCD_LDD_2,
  55         GPIO57_LCD_LDD_3,
  56         GPIO58_LCD_LDD_4,
  57         GPIO59_LCD_LDD_5,
  58         GPIO60_LCD_LDD_6,
  59         GPIO61_LCD_LDD_7,
  60         GPIO62_LCD_LDD_8,
  61         GPIO63_LCD_LDD_9,
  62         GPIO64_LCD_LDD_10,
  63         GPIO65_LCD_LDD_11,
  64         GPIO66_LCD_LDD_12,
  65         GPIO67_LCD_LDD_13,
  66         GPIO68_LCD_LDD_14,
  67         GPIO69_LCD_LDD_15,
  68         GPIO70_LCD_LDD_16,
  69         GPIO71_LCD_LDD_17,
  70         GPIO72_LCD_FCLK,
  71         GPIO73_LCD_LCLK,
  72         GPIO74_LCD_PCLK,
  73         GPIO75_LCD_BIAS,
  74
  75         /* SSP2 */
  76         GPIO25_SSP2_SCLK,
  77         GPIO27_SSP2_TXD,
  78         GPIO17_GPIO,    /* SFRM as chip-select */
  79
  80         /* Debug Ethernet */
  81         GPIO90_GPIO,
  82
  83         /* Keypad */
  84         GPIO107_KP_DKIN_0,
  85         GPIO108_KP_DKIN_1,
  86         GPIO115_KP_MKIN_0,
  87         GPIO116_KP_MKIN_1,
  88         GPIO117_KP_MKIN_2,
  89         GPIO118_KP_MKIN_3,
  90         GPIO119_KP_MKIN_4,
  91         GPIO120_KP_MKIN_5,
  92         GPIO121_KP_MKOUT_0,
  93         GPIO122_KP_MKOUT_1,
  94         GPIO123_KP_MKOUT_2,
  95         GPIO124_KP_MKOUT_3,
  96         GPIO125_KP_MKOUT_4,
  97 };
  98
  99 static struct resource smc91x_resources[] = {
 100         [0] = {
 101                 .start  = (LITTLETON_ETH_PHYS + 0x300),
 102                 .end    = (LITTLETON_ETH_PHYS + 0xfffff),
 103                 .flags  = IORESOURCE_MEM,
 104         },
 105         [1] = {
 106                 .start  = IRQ_GPIO(mfp_to_gpio(MFP_PIN_GPIO90)),
 107                 .end    = IRQ_GPIO(mfp_to_gpio(MFP_PIN_GPIO90)),
 108                 .flags  = IORESOURCE_IRQ | IORESOURCE_IRQ_LOWEDGE,
 109         }
 110 };
 111
 112 static struct smc91x_platdata littleton_smc91x_info = {
 113         .flags  = SMC91X_USE_8BIT | SMC91X_USE_16BIT |
 114                   SMC91X_NOWAIT | SMC91X_USE_DMA,
 115 };
 116
 117 static struct platform_device smc91x_device = {
 118         .name           = "smc91x",
 119         .id             = 0,
 120         .num_resources  = ARRAY_SIZE(smc91x_resources),
 121         .resource       = smc91x_resources,
 122         .dev            = {
 123                 .platform_data = &littleton_smc91x_info,
 124         },
 125 };
 126
 127 #if defined(CONFIG_FB_PXA) || defined(CONFIG_FB_PXA_MODULE)
 128 static struct pxafb_mode_info tpo_tdo24mtea1_modes[] = {
 129         [0] = {
 130                 /* VGA */
 131                 .pixclock       = 38250,
 132                 .xres           = 480,
 133                 .yres           = 640,
 134                 .bpp            = 16,
 135                 .hsync_len      = 8,
 136                 .left_margin    = 8,
 137                 .right_margin   = 24,
 138                 .vsync_len      = 2,
 139                 .upper_margin   = 2,
 140                 .lower_margin   = 4,
 141                 .sync           = 0,
 142         },
 143         [1] = {
 144                 /* QVGA */
 145                 .pixclock       = 153000,
 146                 .xres           = 240,
 147                 .yres           = 320,
 148                 .bpp            = 16,
 149                 .hsync_len      = 8,
 150                 .left_margin    = 8,
 151                 .right_margin   = 88,
 152                 .vsync_len      = 2,
 153                 .upper_margin   = 2,
 154                 .lower_margin   = 2,
 155                 .sync           = 0,
 156         },
 157 };
 158
 159 static struct pxafb_mach_info littleton_lcd_info = {
 160         .modes                  = tpo_tdo24mtea1_modes,
 161         .num_modes              = 2,
 162         .lcd_conn               = LCD_COLOR_TFT_16BPP,
 163 };
 164
 165 static void littleton_init_lcd(void)
 166 {
 167         set_pxa_fb_info(&littleton_lcd_info);
 168 }
 169 #else
 170 static inline void littleton_init_lcd(void) {};
 171 #endif /* CONFIG_FB_PXA || CONFIG_FB_PXA_MODULE */
 172
 173 #if defined(CONFIG_SPI_PXA2XX) || defined(CONFIG_SPI_PXA2XX_MODULE)
 174 static struct pxa2xx_spi_master littleton_spi_info = {
 175         .num_chipselect         = 1,
 176 };
 177
 178 static void littleton_tdo24m_cs(u32 cmd)
 179 {
 180         gpio_set_value(LITTLETON_GPIO_LCD_CS, !(cmd == PXA2XX_CS_ASSERT));
 181 }
 182
 183 static struct pxa2xx_spi_chip littleton_tdo24m_chip = {
 184         .rx_threshold   = 1,
 185         .tx_threshold   = 1,
 186         .cs_control     = littleton_tdo24m_cs,
 187 };
 188
 189 static struct spi_board_info littleton_spi_devices[] __initdata = {
 190         {
 191                 .modalias       = "tdo24m",
 192                 .max_speed_hz   = 1000000,
 193                 .bus_num        = 2,
 194                 .chip_select    = 0,
 195                 .controller_data= &littleton_tdo24m_chip,
 196         },
 197 };
 198
 199 static void __init littleton_init_spi(void)
 200 {
 201         int err;
 202
 203         err = gpio_request(LITTLETON_GPIO_LCD_CS, "LCD_CS");
 204         if (err) {
 205                 pr_warning("failed to request GPIO for LCS CS\n");
 206                 return;
 207         }
 208
 209         gpio_direction_output(LITTLETON_GPIO_LCD_CS, 1);
 210
 211         pxa2xx_set_spi_info(2, &littleton_spi_info);
 212         spi_register_board_info(ARRAY_AND_SIZE(littleton_spi_devices));
 213 }
 214 #else
 215 static inline void littleton_init_spi(void) {}
 216 #endif
 217
 218 #if defined(CONFIG_KEYBOARD_PXA27x) || defined(CONFIG_KEYBOARD_PXA27x_MODULE)
 219 static unsigned int littleton_matrix_key_map[] = {
 220         /* KEY(row, col, key_code) */
 221         KEY(1, 3, KEY_0), KEY(0, 0, KEY_1), KEY(1, 0, KEY_2), KEY(2, 0, KEY_3),
 222         KEY(0, 1, KEY_4), KEY(1, 1, KEY_5), KEY(2, 1, KEY_6), KEY(0, 2, KEY_7),
 223         KEY(1, 2, KEY_8), KEY(2, 2, KEY_9),
 224
 225         KEY(0, 3, KEY_KPASTERISK),      /* * */
 226         KEY(2, 3, KEY_KPDOT),           /* # */
 227
 228         KEY(5, 4, KEY_ENTER),
 229
 230         KEY(5, 0, KEY_UP),
 231         KEY(5, 1, KEY_DOWN),
 232         KEY(5, 2, KEY_LEFT),
 233         KEY(5, 3, KEY_RIGHT),
 234         KEY(3, 2, KEY_HOME),
 235         KEY(4, 1, KEY_END),
 236         KEY(3, 3, KEY_BACK),
 237
 238         KEY(4, 0, KEY_SEND),
 239         KEY(4, 2, KEY_VOLUMEUP),
 240         KEY(4, 3, KEY_VOLUMEDOWN),
 241
 242         KEY(3, 0, KEY_F22),     /* soft1 */
 243         KEY(3, 1, KEY_F23),     /* soft2 */
 244 };
 245
 246 static struct pxa27x_keypad_platform_data littleton_keypad_info = {
 247         .matrix_key_rows        = 6,
 248         .matrix_key_cols        = 5,
 249         .matrix_key_map         = littleton_matrix_key_map,
 250         .matrix_key_map_size    = ARRAY_SIZE(littleton_matrix_key_map),
 251
 252         .enable_rotary0         = 1,
 253         .rotary0_up_key         = KEY_UP,
 254         .rotary0_down_key       = KEY_DOWN,
 255
 256         .debounce_interval      = 30,
 257 };
 258 static void __init littleton_init_keypad(void)
 259 {
 260         pxa_set_keypad_info(&littleton_keypad_info);
 261 }
 262 #else
 263 static inline void littleton_init_keypad(void) {}
 264 #endif
 265
 266 #if defined(CONFIG_MTD_NAND_PXA3xx) || defined(CONFIG_MTD_NAND_PXA3xx_MODULE)
 267 static struct mtd_partition littleton_nand_partitions[] = {
 268         [0] = {
 269                 .name        = "Bootloader",
 270                 .offset      = 0,
 271                 .size        = 0x060000,
 272                 .mask_flags  = MTD_WRITEABLE, /* force read-only */
 273         },
 274         [1] = {
 275                 .name        = "Kernel",
 276                 .offset      = 0x060000,
 277                 .size        = 0x200000,
 278                 .mask_flags  = MTD_WRITEABLE, /* force read-only */
 279         },
 280         [2] = {
 281                 .name        = "Filesystem",
 282                 .offset      = 0x0260000,
 283                 .size        = 0x3000000,     /* 48M - rootfs */
 284         },
 285         [3] = {
 286                 .name        = "MassStorage",
 287                 .offset      = 0x3260000,
 288                 .size        = 0x3d40000,
 289         },
 290         [4] = {
 291                 .name        = "BBT",
 292                 .offset      = 0x6FA0000,
 293                 .size        = 0x80000,
 294                 .mask_flags  = MTD_WRITEABLE,  /* force read-only */
 295         },
 296         /* NOTE: we reserve some blocks at the end of the NAND flash for
 297          * bad block management, and the max number of relocation blocks
 298          * differs on different platforms. Please take care with it when
 299          * defining the partition table.
 300          */
 301 };
 302
 303 static struct pxa3xx_nand_platform_data littleton_nand_info = {
 304         .enable_arbiter = 1,
 305         .parts          = littleton_nand_partitions,
 306         .nr_parts       = ARRAY_SIZE(littleton_nand_partitions),
 307 };
 308
 309 static void __init littleton_init_nand(void)
 310 {
 311         pxa3xx_set_nand_info(&littleton_nand_info);
 312 }
 313 #else
 314 static inline void littleton_init_nand(void) {}
 315 #endif /* CONFIG_MTD_NAND_PXA3xx || CONFIG_MTD_NAND_PXA3xx_MODULE */
 316
 317 static void __init littleton_init(void)
 318 {
 319         /* initialize MFP configurations */
 320         pxa3xx_mfp_config(ARRAY_AND_SIZE(littleton_mfp_cfg));
 321
 322         /*
 323          * Note: we depend bootloader set the correct
 324          * value to MSC register for SMC91x.
 325          */
 326         platform_device_register(&smc91x_device);
 327
 328         littleton_init_spi();
 329         littleton_init_lcd();
 330         littleton_init_keypad();
 331         littleton_init_nand();
 332 }
 333
 334 MACHINE_START(LITTLETON, "Marvell Form Factor Development Platform (aka Littleton)")
 335         .phys_io        = 0x40000000,
 336         .boot_params    = 0xa0000100,
 337         .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
 338         .map_io         = pxa_map_io,
 339         .init_irq       = pxa3xx_init_irq,
 340         .timer          = &pxa_timer,
 341         .init_machine   = littleton_init,
 342 MACHINE_END