LXR uboot/board/atmel/at91sam9m10g45ek/at91sam9m10g45ek.c

   1/*
   2 * (C) Copyright 2007-2008
   3 * Stelian Pop <stelian@popies.net>
   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/io.h>
  27#include <asm/arch/at91sam9g45_matrix.h>
  28#include <asm/arch/at91sam9_smc.h>
  29#include <asm/arch/at91_common.h>
  30#include <asm/arch/at91_pmc.h>
  31#include <asm/arch/at91_rstc.h>
  32#include <asm/arch/gpio.h>
  33#include <asm/arch/clk.h>
  34#include <lcd.h>
  35#include <atmel_lcdc.h>
  36#if defined(CONFIG_RESET_PHY_R) && defined(CONFIG_MACB)
  37#include <net.h>
  38#endif
  39#include <netdev.h>
  40
  41DECLARE_GLOBAL_DATA_PTR;
  42
  43/* ------------------------------------------------------------------------- */
  44/*
  45 * Miscelaneous platform dependent initialisations
  46 */
  47
  48#ifdef CONFIG_CMD_NAND
  49void at91sam9m10g45ek_nand_hw_init(void)
  50{
  51        struct at91_smc *smc = (struct at91_smc *)ATMEL_BASE_SMC;
  52        struct at91_matrix *matrix = (struct at91_matrix *)ATMEL_BASE_MATRIX;
  53        struct at91_pmc *pmc = (struct at91_pmc *)ATMEL_BASE_PMC;
  54        unsigned long csa;
  55
  56        /* Enable CS3 */
  57        csa = readl(&matrix->ebicsa);
  58        csa |= AT91_MATRIX_EBI_CS3A_SMC_SMARTMEDIA;
  59        writel(csa, &matrix->ebicsa);
  60
  61        /* Configure SMC CS3 for NAND/SmartMedia */
  62        writel(AT91_SMC_SETUP_NWE(1) | AT91_SMC_SETUP_NCS_WR(0) |
  63               AT91_SMC_SETUP_NRD(1) | AT91_SMC_SETUP_NCS_RD(0),
  64               &smc->cs[3].setup);
  65        writel(AT91_SMC_PULSE_NWE(4) | AT91_SMC_PULSE_NCS_WR(3) |
  66               AT91_SMC_PULSE_NRD(3) | AT91_SMC_PULSE_NCS_RD(2),
  67               &smc->cs[3].pulse);
  68        writel(AT91_SMC_CYCLE_NWE(7) | AT91_SMC_CYCLE_NRD(4),
  69               &smc->cs[3].cycle);
  70        writel(AT91_SMC_MODE_RM_NRD | AT91_SMC_MODE_WM_NWE |
  71               AT91_SMC_MODE_EXNW_DISABLE |
  72#ifdef CONFIG_SYS_NAND_DBW_16
  73               AT91_SMC_MODE_DBW_16 |
  74#else /* CONFIG_SYS_NAND_DBW_8 */
  75               AT91_SMC_MODE_DBW_8 |
  76#endif
  77               AT91_SMC_MODE_TDF_CYCLE(3),
  78               &smc->cs[3].mode);
  79
  80        writel(1 << ATMEL_ID_PIOC, &pmc->pcer);
  81
  82        /* Configure RDY/BSY */
  83        at91_set_gpio_input(CONFIG_SYS_NAND_READY_PIN, 1);
  84
  85        /* Enable NandFlash */
  86        at91_set_gpio_output(CONFIG_SYS_NAND_ENABLE_PIN, 1);
  87}
  88#endif
  89
  90#ifdef CONFIG_CMD_USB
  91static void at91sam9m10g45ek_usb_hw_init(void)
  92{
  93        struct at91_pmc *pmc = (struct at91_pmc *)ATMEL_BASE_PMC;
  94
  95        writel(1 << ATMEL_ID_PIODE, &pmc->pcer);
  96
  97        at91_set_gpio_output(AT91_PIN_PD1, 0);
  98        at91_set_gpio_output(AT91_PIN_PD3, 0);
  99}
 100#endif
 101
 102#ifdef CONFIG_MACB
 103static void at91sam9m10g45ek_macb_hw_init(void)
 104{
 105        struct at91_pmc *pmc = (struct at91_pmc *)ATMEL_BASE_PMC;
 106        struct at91_port *pioa = (struct at91_port *)ATMEL_BASE_PIOA;
 107        struct at91_rstc *rstc = (struct at91_rstc *)ATMEL_BASE_RSTC;
 108        unsigned long erstl;
 109
 110        /* Enable clock */
 111        writel(1 << ATMEL_ID_EMAC, &pmc->pcer);
 112
 113        /*
 114         * Disable pull-up on:
 115         *      RXDV (PA15) => PHY normal mode (not Test mode)
 116         *      ERX0 (PA12) => PHY ADDR0
 117         *      ERX1 (PA13) => PHY ADDR1 => PHYADDR = 0x0
 118         *
 119         * PHY has internal pull-down
 120         */
 121        writel(pin_to_mask(AT91_PIN_PA15) |
 122               pin_to_mask(AT91_PIN_PA12) |
 123               pin_to_mask(AT91_PIN_PA13),
 124               &pioa->pudr);
 125
 126        erstl = readl(&rstc->mr) & AT91_RSTC_MR_ERSTL_MASK;
 127
 128        /* Need to reset PHY -> 500ms reset */
 129        writel(AT91_RSTC_KEY | AT91_RSTC_MR_ERSTL(13) |
 130                AT91_RSTC_MR_URSTEN, &rstc->mr);
 131
 132        writel(AT91_RSTC_KEY | AT91_RSTC_CR_EXTRST, &rstc->cr);
 133
 134        /* Wait for end hardware reset */
 135        while (!(readl(&rstc->sr) & AT91_RSTC_SR_NRSTL))
 136                ;
 137
 138        /* Restore NRST value */
 139        writel(AT91_RSTC_KEY | erstl | AT91_RSTC_MR_URSTEN,
 140                &rstc->mr);
 141
 142        /* Re-enable pull-up */
 143        writel(pin_to_mask(AT91_PIN_PA15) |
 144               pin_to_mask(AT91_PIN_PA12) |
 145               pin_to_mask(AT91_PIN_PA13),
 146               &pioa->puer);
 147
 148        /* And the pins. */
 149        at91_macb_hw_init();
 150}
 151#endif
 152
 153#ifdef CONFIG_LCD
 154
 155vidinfo_t panel_info = {
 156        vl_col:         480,
 157        vl_row:         272,
 158        vl_clk:         9000000,
 159        vl_sync:        ATMEL_LCDC_INVLINE_NORMAL |
 160                        ATMEL_LCDC_INVFRAME_NORMAL,
 161        vl_bpix:        3,
 162        vl_tft:         1,
 163        vl_hsync_len:   45,
 164        vl_left_margin: 1,
 165        vl_right_margin:1,
 166        vl_vsync_len:   1,
 167        vl_upper_margin:40,
 168        vl_lower_margin:1,
 169        mmio :           ATMEL_BASE_LCDC,
 170};
 171
 172
 173void lcd_enable(void)
 174{
 175        at91_set_A_periph(AT91_PIN_PE6, 1);     /* power up */
 176}
 177
 178void lcd_disable(void)
 179{
 180        at91_set_A_periph(AT91_PIN_PE6, 0);     /* power down */
 181}
 182
 183static void at91sam9m10g45ek_lcd_hw_init(void)
 184{
 185        struct at91_pmc *pmc = (struct at91_pmc *)ATMEL_BASE_PMC;
 186
 187        at91_set_A_periph(AT91_PIN_PE0, 0);     /* LCDDPWR */
 188        at91_set_A_periph(AT91_PIN_PE2, 0);     /* LCDCC */
 189        at91_set_A_periph(AT91_PIN_PE3, 0);     /* LCDVSYNC */
 190        at91_set_A_periph(AT91_PIN_PE4, 0);     /* LCDHSYNC */
 191        at91_set_A_periph(AT91_PIN_PE5, 0);     /* LCDDOTCK */
 192
 193        at91_set_A_periph(AT91_PIN_PE7, 0);     /* LCDD0 */
 194        at91_set_A_periph(AT91_PIN_PE8, 0);     /* LCDD1 */
 195        at91_set_A_periph(AT91_PIN_PE9, 0);     /* LCDD2 */
 196        at91_set_A_periph(AT91_PIN_PE10, 0);    /* LCDD3 */
 197        at91_set_A_periph(AT91_PIN_PE11, 0);    /* LCDD4 */
 198        at91_set_A_periph(AT91_PIN_PE12, 0);    /* LCDD5 */
 199        at91_set_A_periph(AT91_PIN_PE13, 0);    /* LCDD6 */
 200        at91_set_A_periph(AT91_PIN_PE14, 0);    /* LCDD7 */
 201        at91_set_A_periph(AT91_PIN_PE15, 0);    /* LCDD8 */
 202        at91_set_A_periph(AT91_PIN_PE16, 0);    /* LCDD9 */
 203        at91_set_A_periph(AT91_PIN_PE17, 0);    /* LCDD10 */
 204        at91_set_A_periph(AT91_PIN_PE18, 0);    /* LCDD11 */
 205        at91_set_A_periph(AT91_PIN_PE19, 0);    /* LCDD12 */
 206        at91_set_B_periph(AT91_PIN_PE20, 0);    /* LCDD13 */
 207        at91_set_A_periph(AT91_PIN_PE21, 0);    /* LCDD14 */
 208        at91_set_A_periph(AT91_PIN_PE22, 0);    /* LCDD15 */
 209        at91_set_A_periph(AT91_PIN_PE23, 0);    /* LCDD16 */
 210        at91_set_A_periph(AT91_PIN_PE24, 0);    /* LCDD17 */
 211        at91_set_A_periph(AT91_PIN_PE25, 0);    /* LCDD18 */
 212        at91_set_A_periph(AT91_PIN_PE26, 0);    /* LCDD19 */
 213        at91_set_A_periph(AT91_PIN_PE27, 0);    /* LCDD20 */
 214        at91_set_B_periph(AT91_PIN_PE28, 0);    /* LCDD21 */
 215        at91_set_A_periph(AT91_PIN_PE29, 0);    /* LCDD22 */
 216        at91_set_A_periph(AT91_PIN_PE30, 0);    /* LCDD23 */
 217
 218        writel(1 << ATMEL_ID_LCDC, &pmc->pcer);
 219
 220        gd->fb_base = CONFIG_AT91SAM9G45_LCD_BASE;
 221}
 222
 223#ifdef CONFIG_LCD_INFO
 224#include <nand.h>
 225#include <version.h>
 226
 227void lcd_show_board_info(void)
 228{
 229        ulong dram_size, nand_size;
 230        int i;
 231        char temp[32];
 232
 233        lcd_printf ("%s\n", U_BOOT_VERSION);
 234        lcd_printf ("(C) 2008 ATMEL Corp\n");
 235        lcd_printf ("at91support@atmel.com\n");
 236        lcd_printf ("%s CPU at %s MHz\n",
 237                ATMEL_CPU_NAME,
 238                strmhz(temp, get_cpu_clk_rate()));
 239
 240        dram_size = 0;
 241        for (i = 0; i < CONFIG_NR_DRAM_BANKS; i++)
 242                dram_size += gd->bd->bi_dram[i].size;
 243        nand_size = 0;
 244        for (i = 0; i < CONFIG_SYS_MAX_NAND_DEVICE; i++)
 245                nand_size += nand_info[i].size;
 246        lcd_printf ("  %ld MB SDRAM, %ld MB NAND\n",
 247                dram_size >> 20,
 248                nand_size >> 20 );
 249}
 250#endif /* CONFIG_LCD_INFO */
 251#endif
 252
 253int board_early_init_f(void)
 254{
 255        at91_seriald_hw_init();
 256        return 0;
 257}
 258
 259int board_init(void)
 260{
 261        /* arch number of AT91SAM9M10G45EK-Board */
 262#ifdef CONFIG_AT91SAM9M10G45EK
 263        gd->bd->bi_arch_number = MACH_TYPE_AT91SAM9M10G45EK;
 264#elif defined CONFIG_AT91SAM9G45EKES
 265        gd->bd->bi_arch_number = MACH_TYPE_AT91SAM9G45EKES;
 266#endif
 267
 268        /* adress of boot parameters */
 269        gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100;
 270
 271#ifdef CONFIG_CMD_NAND
 272        at91sam9m10g45ek_nand_hw_init();
 273#endif
 274#ifdef CONFIG_CMD_USB
 275        at91sam9m10g45ek_usb_hw_init();
 276#endif
 277#ifdef CONFIG_HAS_DATAFLASH
 278        at91_spi0_hw_init(1 << 0);
 279#endif
 280#ifdef CONFIG_ATMEL_SPI
 281        at91_spi0_hw_init(1 << 4);
 282#endif
 283#ifdef CONFIG_MACB
 284        at91sam9m10g45ek_macb_hw_init();
 285#endif
 286#ifdef CONFIG_LCD
 287        at91sam9m10g45ek_lcd_hw_init();
 288#endif
 289        return 0;
 290}
 291
 292int dram_init(void)
 293{
 294        gd->ram_size = get_ram_size((void *) CONFIG_SYS_SDRAM_BASE,
 295                                    CONFIG_SYS_SDRAM_SIZE);
 296        return 0;
 297}
 298
 299#ifdef CONFIG_RESET_PHY_R
 300void reset_phy(void)
 301{
 302}
 303#endif
 304
 305int board_eth_init(bd_t *bis)
 306{
 307        int rc = 0;
 308#ifdef CONFIG_MACB
 309        rc = macb_eth_initialize(0, (void *)ATMEL_BASE_EMAC, 0x00);
 310#endif
 311        return rc;
 312}
 313
 314/* SPI chip select control */
 315#ifdef CONFIG_ATMEL_SPI
 316#include <spi.h>
 317
 318int spi_cs_is_valid(unsigned int bus, unsigned int cs)
 319{
 320        return bus == 0 && cs < 2;
 321}
 322
 323void spi_cs_activate(struct spi_slave *slave)
 324{
 325        switch(slave->cs) {
 326                case 1:
 327                        at91_set_gpio_output(AT91_PIN_PB18, 0);
 328                        break;
 329                case 0:
 330                default:
 331                        at91_set_gpio_output(AT91_PIN_PB3, 0);
 332                        break;
 333        }
 334}
 335
 336void spi_cs_deactivate(struct spi_slave *slave)
 337{
 338        switch(slave->cs) {
 339                case 1:
 340                        at91_set_gpio_output(AT91_PIN_PB18, 1);
 341                        break;
 342                case 0:
 343                default:
 344                        at91_set_gpio_output(AT91_PIN_PB3, 1);
 345                break;
 346        }
 347}
 348#endif /* CONFIG_ATMEL_SPI */
 349