release/src-rt-6.x/linux/linux-2.6/arch/arm/mach-at91/board-sam9rlek.c

   1 /*
   2  *  Copyright (C) 2005 SAN People
   3  *  Copyright (C) 2007 Atmel Corporation
   4  *
   5  * This file is subject to the terms and conditions of the GNU General Public
   6  * License.  See the file COPYING in the main directory of this archive for
   7  * more details.
   8  */
   9
  10 #include <linux/types.h>
  11 #include <linux/init.h>
  12 #include <linux/mm.h>
  13 #include <linux/module.h>
  14 #include <linux/platform_device.h>
  15 #include <linux/spi/spi.h>
  16 #include <linux/fb.h>
  17 #include <linux/clk.h>
  18
  19 #include <video/atmel_lcdc.h>
  20
  21 #include <asm/hardware.h>
  22 #include <asm/setup.h>
  23 #include <asm/mach-types.h>
  24 #include <asm/irq.h>
  25
  26 #include <asm/mach/arch.h>
  27 #include <asm/mach/map.h>
  28 #include <asm/mach/irq.h>
  29
  30 #include <asm/arch/board.h>
  31 #include <asm/arch/gpio.h>
  32 #include <asm/arch/at91sam926x_mc.h>
  33
  34 #include "generic.h"
  35
  36
  37 /*
  38  * Serial port configuration.
  39  *    0 .. 3 = USART0 .. USART3
  40  *    4      = DBGU
  41  */
  42 static struct at91_uart_config __initdata ek_uart_config = {
  43         .console_tty    = 0,                            /* ttyS0 */
  44         .nr_tty         = 2,
  45         .tty_map        = { 4, 0, -1, -1, -1 }          /* ttyS0, ..., ttyS4 */
  46 };
  47
  48 static void __init ek_map_io(void)
  49 {
  50         /* Initialize processor: 12.000 MHz crystal */
  51         at91sam9rl_initialize(12000000);
  52
  53         /* Setup the serial ports and console */
  54         at91_init_serial(&ek_uart_config);
  55 }
  56
  57 static void __init ek_init_irq(void)
  58 {
  59         at91sam9rl_init_interrupts(NULL);
  60 }
  61
  62
  63 /*
  64  * MCI (SD/MMC)
  65  */
  66 static struct at91_mmc_data __initdata ek_mmc_data = {
  67         .wire4          = 1,
  68         .det_pin        = AT91_PIN_PA15,
  69 //      .wp_pin         = ... not connected
  70 //      .vcc_pin        = ... not connected
  71 };
  72
  73
  74 /*
  75  * NAND flash
  76  */
  77 static struct mtd_partition __initdata ek_nand_partition[] = {
  78         {
  79                 .name   = "Partition 1",
  80                 .offset = 0,
  81                 .size   = 256 * 1024,
  82         },
  83         {
  84                 .name   = "Partition 2",
  85                 .offset = 256 * 1024 ,
  86                 .size   = MTDPART_SIZ_FULL,
  87         },
  88 };
  89
  90 static struct mtd_partition * __init nand_partitions(int size, int *num_partitions)
  91 {
  92         *num_partitions = ARRAY_SIZE(ek_nand_partition);
  93         return ek_nand_partition;
  94 }
  95
  96 static struct at91_nand_data __initdata ek_nand_data = {
  97         .ale            = 21,
  98         .cle            = 22,
  99 //      .det_pin        = ... not connected
 100         .rdy_pin        = AT91_PIN_PD17,
 101         .enable_pin     = AT91_PIN_PB6,
 102         .partition_info = nand_partitions,
 103         .bus_width_16   = 0,
 104 };
 105
 106
 107 /*
 108  * SPI devices
 109  */
 110 static struct spi_board_info ek_spi_devices[] = {
 111         {       /* DataFlash chip */
 112                 .modalias       = "mtd_dataflash",
 113                 .chip_select    = 0,
 114                 .max_speed_hz   = 15 * 1000 * 1000,
 115                 .bus_num        = 0,
 116         },
 117 };
 118
 119
 120 /*
 121  * LCD Controller
 122  */
 123 #if defined(CONFIG_FB_ATMEL) || defined(CONFIG_FB_ATMEL_MODULE)
 124 static struct fb_videomode at91_tft_vga_modes[] = {
 125         {
 126                 .name           = "TX09D50VM1CCA @ 60",
 127                 .refresh        = 60,
 128                 .xres           = 240,          .yres           = 320,
 129                 .pixclock       = KHZ2PICOS(4965),
 130
 131                 .left_margin    = 1,            .right_margin   = 33,
 132                 .upper_margin   = 1,            .lower_margin   = 0,
 133                 .hsync_len      = 5,            .vsync_len      = 1,
 134
 135                 .sync           = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
 136                 .vmode          = FB_VMODE_NONINTERLACED,
 137         },
 138 };
 139
 140 static struct fb_monspecs at91fb_default_monspecs = {
 141         .manufacturer   = "HIT",
 142         .monitor        = "TX09D50VM1CCA",
 143
 144         .modedb         = at91_tft_vga_modes,
 145         .modedb_len     = ARRAY_SIZE(at91_tft_vga_modes),
 146         .hfmin          = 15000,
 147         .hfmax          = 64000,
 148         .vfmin          = 50,
 149         .vfmax          = 150,
 150 };
 151
 152 #define AT91SAM9RL_DEFAULT_LCDCON2      (ATMEL_LCDC_MEMOR_LITTLE \
 153                                         | ATMEL_LCDC_DISTYPE_TFT \
 154                                         | ATMEL_LCDC_CLKMOD_ALWAYSACTIVE)
 155
 156 static void at91_lcdc_power_control(int on)
 157 {
 158         if (on)
 159                 at91_set_gpio_value(AT91_PIN_PA30, 0);  /* power up */
 160         else
 161                 at91_set_gpio_value(AT91_PIN_PA30, 1);  /* power down */
 162 }
 163
 164 /* Driver datas */
 165 static struct atmel_lcdfb_info __initdata ek_lcdc_data = {
 166         .default_bpp                    = 16,
 167         .default_dmacon                 = ATMEL_LCDC_DMAEN,
 168         .default_lcdcon2                = AT91SAM9RL_DEFAULT_LCDCON2,
 169         .default_monspecs               = &at91fb_default_monspecs,
 170         .atmel_lcdfb_power_control      = at91_lcdc_power_control,
 171         .guard_time                     = 1,
 172 };
 173
 174 #else
 175 static struct atmel_lcdfb_info __initdata ek_lcdc_data;
 176 #endif
 177
 178
 179 static void __init ek_board_init(void)
 180 {
 181         /* Serial */
 182         at91_add_device_serial();
 183         /* I2C */
 184         at91_add_device_i2c();
 185         /* NAND */
 186         at91_add_device_nand(&ek_nand_data);
 187         /* SPI */
 188         at91_add_device_spi(ek_spi_devices, ARRAY_SIZE(ek_spi_devices));
 189         /* MMC */
 190         at91_add_device_mmc(0, &ek_mmc_data);
 191         /* LCD Controller */
 192         at91_add_device_lcdc(&ek_lcdc_data);
 193 }
 194
 195 MACHINE_START(AT91SAM9RLEK, "Atmel AT91SAM9RL-EK")
 196         /* Maintainer: Atmel */
 197         .phys_io        = AT91_BASE_SYS,
 198         .io_pg_offst    = (AT91_VA_BASE_SYS >> 18) & 0xfffc,
 199         .boot_params    = AT91_SDRAM_BASE + 0x100,
 200         .timer          = &at91sam926x_timer,
 201         .map_io         = ek_map_io,
 202         .init_irq       = ek_init_irq,
 203         .init_machine   = ek_board_init,
 204 MACHINE_END