board/atmel/at91sam9261ek/at91sam9261ek.c

   1 /*
   2  * (C) Copyright 2007-2008
   3  * Stelian Pop <stelian.pop@leadtechdesign.com>
   4  * Lead Tech Design <www.leadtechdesign.com>
   5  *
   6  * See file CREDITS for list of people who contributed to this
   7  * project.
   8  *
   9  * This program is free software; you can redistribute it and/or
  10  * modify it under the terms of the GNU General Public License as
  11  * published by the Free Software Foundation; either version 2 of
  12  * the License, or (at your option) any later version.
  13  *
  14  * This program is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  17  * GNU General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU General Public License
  20  * along with this program; if not, write to the Free Software
  21  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  22  * MA 02111-1307 USA
  23  */
  24
  25 #include <common.h>
  26 #include <asm/arch/at91sam9261.h>
  27 #include <asm/arch/at91sam9261_matrix.h>
  28 #include <asm/arch/at91sam9_smc.h>
  29 #include <asm/arch/at91_pmc.h>
  30 #include <asm/arch/at91_rstc.h>
  31 #include <asm/arch/gpio.h>
  32 #include <asm/arch/io.h>
  33 #include <lcd.h>
  34 #include <atmel_lcdc.h>
  35 #if defined(CONFIG_RESET_PHY_R) && defined(CONFIG_DRIVER_DM9000)
  36 #include <net.h>
  37 #endif
  38
  39 DECLARE_GLOBAL_DATA_PTR;
  40
  41 /* ------------------------------------------------------------------------- */
  42 /*
  43  * Miscelaneous platform dependent initialisations
  44  */
  45
  46 static void at91sam9261ek_serial_hw_init(void)
  47 {
  48 #ifdef CONFIG_USART0
  49         at91_set_A_periph(AT91_PIN_PC8, 1);             /* TXD0 */
  50         at91_set_A_periph(AT91_PIN_PC9, 0);             /* RXD0 */
  51         at91_sys_write(AT91_PMC_PCER, 1 << AT91SAM9261_ID_US0);
  52 #endif
  53
  54 #ifdef CONFIG_USART1
  55         at91_set_A_periph(AT91_PIN_PC12, 1);            /* TXD1 */
  56         at91_set_A_periph(AT91_PIN_PC13, 0);            /* RXD1 */
  57         at91_sys_write(AT91_PMC_PCER, 1 << AT91SAM9261_ID_US1);
  58 #endif
  59
  60 #ifdef CONFIG_USART2
  61         at91_set_A_periph(AT91_PIN_PC14, 1);            /* TXD2 */
  62         at91_set_A_periph(AT91_PIN_PC15, 0);            /* RXD2 */
  63         at91_sys_write(AT91_PMC_PCER, 1 << AT91SAM9261_ID_US2);
  64 #endif
  65
  66 #ifdef CONFIG_USART3    /* DBGU */
  67         at91_set_A_periph(AT91_PIN_PA9, 0);             /* DRXD */
  68         at91_set_A_periph(AT91_PIN_PA10, 1);            /* DTXD */
  69         at91_sys_write(AT91_PMC_PCER, 1 << AT91_ID_SYS);
  70 #endif
  71 }
  72
  73 #ifdef CONFIG_CMD_NAND
  74 static void at91sam9261ek_nand_hw_init(void)
  75 {
  76         unsigned long csa;
  77
  78         /* Enable CS3 */
  79         csa = at91_sys_read(AT91_MATRIX_EBICSA);
  80         at91_sys_write(AT91_MATRIX_EBICSA,
  81                        csa | AT91_MATRIX_CS3A_SMC_SMARTMEDIA);
  82
  83         /* Configure SMC CS3 for NAND/SmartMedia */
  84         at91_sys_write(AT91_SMC_SETUP(3),
  85                        AT91_SMC_NWESETUP_(1) | AT91_SMC_NCS_WRSETUP_(0) |
  86                        AT91_SMC_NRDSETUP_(1) | AT91_SMC_NCS_RDSETUP_(0));
  87         at91_sys_write(AT91_SMC_PULSE(3),
  88                        AT91_SMC_NWEPULSE_(3) | AT91_SMC_NCS_WRPULSE_(3) |
  89                        AT91_SMC_NRDPULSE_(3) | AT91_SMC_NCS_RDPULSE_(3));
  90         at91_sys_write(AT91_SMC_CYCLE(3),
  91                        AT91_SMC_NWECYCLE_(5) | AT91_SMC_NRDCYCLE_(5));
  92         at91_sys_write(AT91_SMC_MODE(3),
  93                        AT91_SMC_READMODE | AT91_SMC_WRITEMODE |
  94                        AT91_SMC_EXNWMODE_DISABLE |
  95 #ifdef CONFIG_SYS_NAND_DBW_16
  96                        AT91_SMC_DBW_16 |
  97 #else /* CONFIG_SYS_NAND_DBW_8 */
  98                        AT91_SMC_DBW_8 |
  99 #endif
 100                        AT91_SMC_TDF_(2));
 101
 102         at91_sys_write(AT91_PMC_PCER, 1 << AT91SAM9261_ID_PIOC);
 103
 104         /* Configure RDY/BSY */
 105         at91_set_gpio_input(AT91_PIN_PC15, 1);
 106
 107         /* Enable NandFlash */
 108         at91_set_gpio_output(AT91_PIN_PC14, 1);
 109
 110         at91_set_A_periph(AT91_PIN_PC0, 0);     /* NANDOE */
 111         at91_set_A_periph(AT91_PIN_PC1, 0);     /* NANDWE */
 112 }
 113 #endif
 114
 115 #ifdef CONFIG_HAS_DATAFLASH
 116 static void at91sam9261ek_spi_hw_init(void)
 117 {
 118         at91_set_A_periph(AT91_PIN_PA3, 0);     /* SPI0_NPCS0 */
 119
 120         at91_set_A_periph(AT91_PIN_PA0, 0);     /* SPI0_MISO */
 121         at91_set_A_periph(AT91_PIN_PA1, 0);     /* SPI0_MOSI */
 122         at91_set_A_periph(AT91_PIN_PA2, 0);     /* SPI0_SPCK */
 123
 124         /* Enable clock */
 125         at91_sys_write(AT91_PMC_PCER, 1 << AT91SAM9261_ID_SPI0);
 126 }
 127 #endif
 128
 129 #ifdef CONFIG_DRIVER_DM9000
 130 static void at91sam9261ek_dm9000_hw_init(void)
 131 {
 132         /* Configure SMC CS2 for DM9000 */
 133         at91_sys_write(AT91_SMC_SETUP(2),
 134                        AT91_SMC_NWESETUP_(2) | AT91_SMC_NCS_WRSETUP_(0) |
 135                        AT91_SMC_NRDSETUP_(2) | AT91_SMC_NCS_RDSETUP_(0));
 136         at91_sys_write(AT91_SMC_PULSE(2),
 137                        AT91_SMC_NWEPULSE_(4) | AT91_SMC_NCS_WRPULSE_(8) |
 138                        AT91_SMC_NRDPULSE_(4) | AT91_SMC_NCS_RDPULSE_(8));
 139         at91_sys_write(AT91_SMC_CYCLE(2),
 140                        AT91_SMC_NWECYCLE_(16) | AT91_SMC_NRDCYCLE_(16));
 141         at91_sys_write(AT91_SMC_MODE(2),
 142                        AT91_SMC_READMODE | AT91_SMC_WRITEMODE |
 143                        AT91_SMC_EXNWMODE_DISABLE |
 144                        AT91_SMC_BAT_WRITE | AT91_SMC_DBW_16 |
 145                        AT91_SMC_TDF_(1));
 146
 147         /* Configure Reset signal as output */
 148         at91_set_gpio_output(AT91_PIN_PC10, 0);
 149
 150         /* Configure Interrupt pin as input, no pull-up */
 151         at91_set_gpio_input(AT91_PIN_PC11, 0);
 152 }
 153 #endif
 154
 155 #ifdef CONFIG_LCD
 156 vidinfo_t panel_info = {
 157         vl_col:         240,
 158         vl_row:         320,
 159         vl_clk:         4965000,
 160         vl_sync:        ATMEL_LCDC_INVLINE_INVERTED |
 161                         ATMEL_LCDC_INVFRAME_INVERTED,
 162         vl_bpix:        3,
 163         vl_tft:         1,
 164         vl_hsync_len:   5,
 165         vl_left_margin: 1,
 166         vl_right_margin:33,
 167         vl_vsync_len:   1,
 168         vl_upper_margin:1,
 169         vl_lower_margin:0,
 170         mmio:           AT91SAM9261_LCDC_BASE,
 171 };
 172
 173 void lcd_enable(void)
 174 {
 175         at91_set_gpio_value(AT91_PIN_PA12, 0);  /* power up */
 176 }
 177
 178 void lcd_disable(void)
 179 {
 180         at91_set_gpio_value(AT91_PIN_PA12, 1);  /* power down */
 181 }
 182
 183 static void at91sam9261ek_lcd_hw_init(void)
 184 {
 185         at91_set_A_periph(AT91_PIN_PB1, 0);     /* LCDHSYNC */
 186         at91_set_A_periph(AT91_PIN_PB2, 0);     /* LCDDOTCK */
 187         at91_set_A_periph(AT91_PIN_PB3, 0);     /* LCDDEN */
 188         at91_set_A_periph(AT91_PIN_PB4, 0);     /* LCDCC */
 189         at91_set_A_periph(AT91_PIN_PB7, 0);     /* LCDD2 */
 190         at91_set_A_periph(AT91_PIN_PB8, 0);     /* LCDD3 */
 191         at91_set_A_periph(AT91_PIN_PB9, 0);     /* LCDD4 */
 192         at91_set_A_periph(AT91_PIN_PB10, 0);    /* LCDD5 */
 193         at91_set_A_periph(AT91_PIN_PB11, 0);    /* LCDD6 */
 194         at91_set_A_periph(AT91_PIN_PB12, 0);    /* LCDD7 */
 195         at91_set_A_periph(AT91_PIN_PB15, 0);    /* LCDD10 */
 196         at91_set_A_periph(AT91_PIN_PB16, 0);    /* LCDD11 */
 197         at91_set_A_periph(AT91_PIN_PB17, 0);    /* LCDD12 */
 198         at91_set_A_periph(AT91_PIN_PB18, 0);    /* LCDD13 */
 199         at91_set_A_periph(AT91_PIN_PB19, 0);    /* LCDD14 */
 200         at91_set_A_periph(AT91_PIN_PB20, 0);    /* LCDD15 */
 201         at91_set_B_periph(AT91_PIN_PB23, 0);    /* LCDD18 */
 202         at91_set_B_periph(AT91_PIN_PB24, 0);    /* LCDD19 */
 203         at91_set_B_periph(AT91_PIN_PB25, 0);    /* LCDD20 */
 204         at91_set_B_periph(AT91_PIN_PB26, 0);    /* LCDD21 */
 205         at91_set_B_periph(AT91_PIN_PB27, 0);    /* LCDD22 */
 206         at91_set_B_periph(AT91_PIN_PB28, 0);    /* LCDD23 */
 207
 208         at91_sys_write(AT91_PMC_SCER, AT91_PMC_HCK1);
 209
 210         gd->fb_base = AT91SAM9261_SRAM_BASE;
 211 }
 212
 213 #ifdef CONFIG_LCD_INFO
 214 #include <nand.h>
 215 #include <version.h>
 216
 217 void lcd_show_board_info(void)
 218 {
 219         ulong dram_size, nand_size;
 220         int i;
 221         char temp[32];
 222
 223         lcd_printf ("%s\n", U_BOOT_VERSION);
 224         lcd_printf ("(C) 2008 ATMEL Corp\n");
 225         lcd_printf ("at91support@atmel.com\n");
 226         lcd_printf ("%s CPU at %s MHz\n",
 227                 AT91_CPU_NAME,
 228                 strmhz(temp, AT91_CPU_CLOCK));
 229
 230         dram_size = 0;
 231         for (i = 0; i < CONFIG_NR_DRAM_BANKS; i++)
 232                 dram_size += gd->bd->bi_dram[i].size;
 233         nand_size = 0;
 234         for (i = 0; i < CONFIG_SYS_MAX_NAND_DEVICE; i++)
 235                 nand_size += nand_info[i].size;
 236         lcd_printf ("  %ld MB SDRAM, %ld MB NAND\n",
 237                 dram_size >> 20,
 238                 nand_size >> 20 );
 239 }
 240 #endif /* CONFIG_LCD_INFO */
 241 #endif
 242
 243 int board_init(void)
 244 {
 245         /* Enable Ctrlc */
 246         console_init_f();
 247
 248         /* arch number of AT91SAM9261EK-Board */
 249         gd->bd->bi_arch_number = MACH_TYPE_AT91SAM9261EK;
 250         /* adress of boot parameters */
 251         gd->bd->bi_boot_params = PHYS_SDRAM + 0x100;
 252
 253         at91sam9261ek_serial_hw_init();
 254 #ifdef CONFIG_CMD_NAND
 255         at91sam9261ek_nand_hw_init();
 256 #endif
 257 #ifdef CONFIG_HAS_DATAFLASH
 258         at91sam9261ek_spi_hw_init();
 259 #endif
 260 #ifdef CONFIG_DRIVER_DM9000
 261         at91sam9261ek_dm9000_hw_init();
 262 #endif
 263 #ifdef CONFIG_LCD
 264         at91sam9261ek_lcd_hw_init();
 265 #endif
 266         return 0;
 267 }
 268
 269 int dram_init(void)
 270 {
 271         gd->bd->bi_dram[0].start = PHYS_SDRAM;
 272         gd->bd->bi_dram[0].size = PHYS_SDRAM_SIZE;
 273         return 0;
 274 }
 275
 276 #ifdef CONFIG_RESET_PHY_R
 277 void reset_phy(void)
 278 {
 279 #ifdef CONFIG_DRIVER_DM9000
 280         /*
 281          * Initialize ethernet HW addr prior to starting Linux,
 282          * needed for nfsroot
 283          */
 284         eth_init(gd->bd);
 285 #endif
 286 }
 287 #endif