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/setup.h>
  22 #include <asm/mach-types.h>
  23 #include <asm/irq.h>
  24
  25 #include <asm/mach/arch.h>
  26 #include <asm/mach/map.h>
  27 #include <asm/mach/irq.h>
  28
  29 #include <mach/hardware.h>
  30 #include <mach/board.h>
  31 #include <mach/gpio.h>
  32 #include <mach/at91_shdwc.h>
  33
  34 #include "sam9_smc.h"
  35 #include "generic.h"
  36
  37
  38 static void __init ek_map_io(void)
  39 {
  40         /* Initialize processor: 12.000 MHz crystal */
  41         at91sam9rl_initialize(12000000);
  42
  43         /* DGBU on ttyS0. (Rx & Tx only) */
  44         at91_register_uart(0, 0, 0);
  45
  46         /* USART0 on ttyS1. (Rx, Tx, CTS, RTS) */
  47         at91_register_uart(AT91SAM9RL_ID_US0, 1, ATMEL_UART_CTS | ATMEL_UART_RTS);
  48
  49         /* set serial console to ttyS0 (ie, DBGU) */
  50         at91_set_serial_console(0);
  51 }
  52
  53 static void __init ek_init_irq(void)
  54 {
  55         at91sam9rl_init_interrupts(NULL);
  56 }
  57
  58
  59 /*
  60  * USB HS Device port
  61  */
  62 static struct usba_platform_data __initdata ek_usba_udc_data = {
  63         .vbus_pin       = AT91_PIN_PA8,
  64 };
  65
  66
  67 /*
  68  * MCI (SD/MMC)
  69  */
  70 static struct at91_mmc_data __initdata ek_mmc_data = {
  71         .wire4          = 1,
  72         .det_pin        = AT91_PIN_PA15,
  73 //      .wp_pin         = ... not connected
  74 //      .vcc_pin        = ... not connected
  75 };
  76
  77
  78 /*
  79  * NAND flash
  80  */
  81 static struct mtd_partition __initdata ek_nand_partition[] = {
  82         {
  83                 .name   = "Partition 1",
  84                 .offset = 0,
  85                 .size   = SZ_256K,
  86         },
  87         {
  88                 .name   = "Partition 2",
  89                 .offset = MTDPART_OFS_NXTBLK,
  90                 .size   = MTDPART_SIZ_FULL,
  91         },
  92 };
  93
  94 static struct mtd_partition * __init nand_partitions(int size, int *num_partitions)
  95 {
  96         *num_partitions = ARRAY_SIZE(ek_nand_partition);
  97         return ek_nand_partition;
  98 }
  99
 100 static struct atmel_nand_data __initdata ek_nand_data = {
 101         .ale            = 21,
 102         .cle            = 22,
 103 //      .det_pin        = ... not connected
 104         .rdy_pin        = AT91_PIN_PD17,
 105         .enable_pin     = AT91_PIN_PB6,
 106         .partition_info = nand_partitions,
 107 };
 108
 109 static struct sam9_smc_config __initdata ek_nand_smc_config = {
 110         .ncs_read_setup         = 0,
 111         .nrd_setup              = 1,
 112         .ncs_write_setup        = 0,
 113         .nwe_setup              = 1,
 114
 115         .ncs_read_pulse         = 3,
 116         .nrd_pulse              = 3,
 117         .ncs_write_pulse        = 3,
 118         .nwe_pulse              = 3,
 119
 120         .read_cycle             = 5,
 121         .write_cycle            = 5,
 122
 123         .mode                   = AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_DBW_8,
 124         .tdf_cycles             = 2,
 125 };
 126
 127 static void __init ek_add_device_nand(void)
 128 {
 129         /* configure chip-select 3 (NAND) */
 130         sam9_smc_configure(3, &ek_nand_smc_config);
 131
 132         at91_add_device_nand(&ek_nand_data);
 133 }
 134
 135
 136 /*
 137  * SPI devices
 138  */
 139 static struct spi_board_info ek_spi_devices[] = {
 140         {       /* DataFlash chip */
 141                 .modalias       = "mtd_dataflash",
 142                 .chip_select    = 0,
 143                 .max_speed_hz   = 15 * 1000 * 1000,
 144                 .bus_num        = 0,
 145         },
 146 };
 147
 148
 149 /*
 150  * LCD Controller
 151  */
 152 #if defined(CONFIG_FB_ATMEL) || defined(CONFIG_FB_ATMEL_MODULE)
 153 static struct fb_videomode at91_tft_vga_modes[] = {
 154         {
 155                 .name           = "TX09D50VM1CCA @ 60",
 156                 .refresh        = 60,
 157                 .xres           = 240,          .yres           = 320,
 158                 .pixclock       = KHZ2PICOS(4965),
 159
 160                 .left_margin    = 1,            .right_margin   = 33,
 161                 .upper_margin   = 1,            .lower_margin   = 0,
 162                 .hsync_len      = 5,            .vsync_len      = 1,
 163
 164                 .sync           = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
 165                 .vmode          = FB_VMODE_NONINTERLACED,
 166         },
 167 };
 168
 169 static struct fb_monspecs at91fb_default_monspecs = {
 170         .manufacturer   = "HIT",
 171         .monitor        = "TX09D50VM1CCA",
 172
 173         .modedb         = at91_tft_vga_modes,
 174         .modedb_len     = ARRAY_SIZE(at91_tft_vga_modes),
 175         .hfmin          = 15000,
 176         .hfmax          = 64000,
 177         .vfmin          = 50,
 178         .vfmax          = 150,
 179 };
 180
 181 #define AT91SAM9RL_DEFAULT_LCDCON2      (ATMEL_LCDC_MEMOR_LITTLE \
 182                                         | ATMEL_LCDC_DISTYPE_TFT \
 183                                         | ATMEL_LCDC_CLKMOD_ALWAYSACTIVE)
 184
 185 static void at91_lcdc_power_control(int on)
 186 {
 187         if (on)
 188                 at91_set_gpio_value(AT91_PIN_PA30, 0);  /* power up */
 189         else
 190                 at91_set_gpio_value(AT91_PIN_PA30, 1);  /* power down */
 191 }
 192
 193 /* Driver datas */
 194 static struct atmel_lcdfb_info __initdata ek_lcdc_data = {
 195         .default_bpp                    = 16,
 196         .default_dmacon                 = ATMEL_LCDC_DMAEN,
 197         .default_lcdcon2                = AT91SAM9RL_DEFAULT_LCDCON2,
 198         .default_monspecs               = &at91fb_default_monspecs,
 199         .atmel_lcdfb_power_control      = at91_lcdc_power_control,
 200         .guard_time                     = 1,
 201 };
 202
 203 #else
 204 static struct atmel_lcdfb_info __initdata ek_lcdc_data;
 205 #endif
 206
 207
 208 static void __init ek_board_init(void)
 209 {
 210         /* Serial */
 211         at91_add_device_serial();
 212         /* USB HS */
 213         at91_add_device_usba(&ek_usba_udc_data);
 214         /* I2C */
 215         at91_add_device_i2c(NULL, 0);
 216         /* NAND */
 217         ek_add_device_nand();
 218         /* SPI */
 219         at91_add_device_spi(ek_spi_devices, ARRAY_SIZE(ek_spi_devices));
 220         /* MMC */
 221         at91_add_device_mmc(0, &ek_mmc_data);
 222         /* LCD Controller */
 223         at91_add_device_lcdc(&ek_lcdc_data);
 224         /* Touch Screen Controller */
 225         at91_add_device_tsadcc();
 226 }
 227
 228 MACHINE_START(AT91SAM9RLEK, "Atmel AT91SAM9RL-EK")
 229         /* Maintainer: Atmel */
 230         .phys_io        = AT91_BASE_SYS,
 231         .io_pg_offst    = (AT91_VA_BASE_SYS >> 18) & 0xfffc,
 232         .boot_params    = AT91_SDRAM_BASE + 0x100,
 233         .timer          = &at91sam926x_timer,
 234         .map_io         = ek_map_io,
 235         .init_irq       = ek_init_irq,
 236         .init_machine   = ek_board_init,
 237 MACHINE_END