git.oblomov.eu Git - linux-2.6/blob - 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/at91sam9_smc.h>
  33
  34 #include "generic.h"
  35
  36
  37 static void __init ek_map_io(void)
  38 {
  39         /* Initialize processor: 12.000 MHz crystal */
  40         at91sam9rl_initialize(12000000);
  41
  42         /* DGBU on ttyS0. (Rx & Tx only) */
  43         at91_register_uart(0, 0, 0);
  44
  45         /* USART0 on ttyS1. (Rx, Tx, CTS, RTS) */
  46         at91_register_uart(AT91SAM9RL_ID_US0, 1, ATMEL_UART_CTS | ATMEL_UART_RTS);
  47
  48         /* set serial console to ttyS0 (ie, DBGU) */
  49         at91_set_serial_console(0);
  50 }
  51
  52 static void __init ek_init_irq(void)
  53 {
  54         at91sam9rl_init_interrupts(NULL);
  55 }
  56
  57
  58 /*
  59  * MCI (SD/MMC)
  60  */
  61 static struct at91_mmc_data __initdata ek_mmc_data = {
  62         .wire4          = 1,
  63         .det_pin        = AT91_PIN_PA15,
  64 //      .wp_pin         = ... not connected
  65 //      .vcc_pin        = ... not connected
  66 };
  67
  68
  69 /*
  70  * NAND flash
  71  */
  72 static struct mtd_partition __initdata ek_nand_partition[] = {
  73         {
  74                 .name   = "Partition 1",
  75                 .offset = 0,
  76                 .size   = 256 * 1024,
  77         },
  78         {
  79                 .name   = "Partition 2",
  80                 .offset = 256 * 1024 ,
  81                 .size   = MTDPART_SIZ_FULL,
  82         },
  83 };
  84
  85 static struct mtd_partition * __init nand_partitions(int size, int *num_partitions)
  86 {
  87         *num_partitions = ARRAY_SIZE(ek_nand_partition);
  88         return ek_nand_partition;
  89 }
  90
  91 static struct at91_nand_data __initdata ek_nand_data = {
  92         .ale            = 21,
  93         .cle            = 22,
  94 //      .det_pin        = ... not connected
  95         .rdy_pin        = AT91_PIN_PD17,
  96         .enable_pin     = AT91_PIN_PB6,
  97         .partition_info = nand_partitions,
  98         .bus_width_16   = 0,
  99 };
 100
 101
 102 /*
 103  * SPI devices
 104  */
 105 static struct spi_board_info ek_spi_devices[] = {
 106         {       /* DataFlash chip */
 107                 .modalias       = "mtd_dataflash",
 108                 .chip_select    = 0,
 109                 .max_speed_hz   = 15 * 1000 * 1000,
 110                 .bus_num        = 0,
 111         },
 112 };
 113
 114
 115 /*
 116  * LCD Controller
 117  */
 118 #if defined(CONFIG_FB_ATMEL) || defined(CONFIG_FB_ATMEL_MODULE)
 119 static struct fb_videomode at91_tft_vga_modes[] = {
 120         {
 121                 .name           = "TX09D50VM1CCA @ 60",
 122                 .refresh        = 60,
 123                 .xres           = 240,          .yres           = 320,
 124                 .pixclock       = KHZ2PICOS(4965),
 125
 126                 .left_margin    = 1,            .right_margin   = 33,
 127                 .upper_margin   = 1,            .lower_margin   = 0,
 128                 .hsync_len      = 5,            .vsync_len      = 1,
 129
 130                 .sync           = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
 131                 .vmode          = FB_VMODE_NONINTERLACED,
 132         },
 133 };
 134
 135 static struct fb_monspecs at91fb_default_monspecs = {
 136         .manufacturer   = "HIT",
 137         .monitor        = "TX09D50VM1CCA",
 138
 139         .modedb         = at91_tft_vga_modes,
 140         .modedb_len     = ARRAY_SIZE(at91_tft_vga_modes),
 141         .hfmin          = 15000,
 142         .hfmax          = 64000,
 143         .vfmin          = 50,
 144         .vfmax          = 150,
 145 };
 146
 147 #define AT91SAM9RL_DEFAULT_LCDCON2      (ATMEL_LCDC_MEMOR_LITTLE \
 148                                         | ATMEL_LCDC_DISTYPE_TFT \
 149                                         | ATMEL_LCDC_CLKMOD_ALWAYSACTIVE)
 150
 151 static void at91_lcdc_power_control(int on)
 152 {
 153         if (on)
 154                 at91_set_gpio_value(AT91_PIN_PA30, 0);  /* power up */
 155         else
 156                 at91_set_gpio_value(AT91_PIN_PA30, 1);  /* power down */
 157 }
 158
 159 /* Driver datas */
 160 static struct atmel_lcdfb_info __initdata ek_lcdc_data = {
 161         .default_bpp                    = 16,
 162         .default_dmacon                 = ATMEL_LCDC_DMAEN,
 163         .default_lcdcon2                = AT91SAM9RL_DEFAULT_LCDCON2,
 164         .default_monspecs               = &at91fb_default_monspecs,
 165         .atmel_lcdfb_power_control      = at91_lcdc_power_control,
 166         .guard_time                     = 1,
 167 };
 168
 169 #else
 170 static struct atmel_lcdfb_info __initdata ek_lcdc_data;
 171 #endif
 172
 173
 174 static void __init ek_board_init(void)
 175 {
 176         /* Serial */
 177         at91_add_device_serial();
 178         /* I2C */
 179         at91_add_device_i2c(NULL, 0);
 180         /* NAND */
 181         at91_add_device_nand(&ek_nand_data);
 182         /* SPI */
 183         at91_add_device_spi(ek_spi_devices, ARRAY_SIZE(ek_spi_devices));
 184         /* MMC */
 185         at91_add_device_mmc(0, &ek_mmc_data);
 186         /* LCD Controller */
 187         at91_add_device_lcdc(&ek_lcdc_data);
 188 }
 189
 190 MACHINE_START(AT91SAM9RLEK, "Atmel AT91SAM9RL-EK")
 191         /* Maintainer: Atmel */
 192         .phys_io        = AT91_BASE_SYS,
 193         .io_pg_offst    = (AT91_VA_BASE_SYS >> 18) & 0xfffc,
 194         .boot_params    = AT91_SDRAM_BASE + 0x100,
 195         .timer          = &at91sam926x_timer,
 196         .map_io         = ek_map_io,
 197         .init_irq       = ek_init_irq,
 198         .init_machine   = ek_board_init,
 199 MACHINE_END