uboot/board/atmel/at91sam9n12ek/at91sam9n12ek.c
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   1/*
   2 * (C) Copyright 2013 Atmel Corporation
   3 * Josh Wu <josh.wu@atmel.com>
   4 *
   5 * SPDX-License-Identifier:     GPL-2.0+
   6 */
   7
   8#include <common.h>
   9#include <asm/io.h>
  10#include <asm/arch/at91sam9x5_matrix.h>
  11#include <asm/arch/at91sam9_smc.h>
  12#include <asm/arch/at91_common.h>
  13#include <asm/arch/at91_rstc.h>
  14#include <asm/arch/at91_pio.h>
  15#include <asm/arch/clk.h>
  16#include <lcd.h>
  17#include <atmel_hlcdc.h>
  18#include <atmel_mci.h>
  19#include <netdev.h>
  20
  21#ifdef CONFIG_LCD_INFO
  22#include <nand.h>
  23#include <version.h>
  24#endif
  25
  26DECLARE_GLOBAL_DATA_PTR;
  27
  28/* ------------------------------------------------------------------------- */
  29/*
  30 * Miscelaneous platform dependent initialisations
  31 */
  32#ifdef CONFIG_NAND_ATMEL
  33static void at91sam9n12ek_nand_hw_init(void)
  34{
  35        struct at91_smc *smc = (struct at91_smc *)ATMEL_BASE_SMC;
  36        struct at91_matrix *matrix = (struct at91_matrix *)ATMEL_BASE_MATRIX;
  37        unsigned long csa;
  38
  39        /* Assign CS3 to NAND/SmartMedia Interface */
  40        csa = readl(&matrix->ebicsa);
  41        csa |= AT91_MATRIX_EBI_CS3A_SMC_SMARTMEDIA;
  42        /* Configure databus */
  43        csa &= ~AT91_MATRIX_NFD0_ON_D16; /* nandflash connect to D0~D15 */
  44        /* Configure IO drive */
  45        csa |= AT91_MATRIX_EBI_EBI_IOSR_NORMAL;
  46
  47        writel(csa, &matrix->ebicsa);
  48
  49        /* Configure SMC CS3 for NAND/SmartMedia */
  50        writel(AT91_SMC_SETUP_NWE(1) | AT91_SMC_SETUP_NCS_WR(0) |
  51                AT91_SMC_SETUP_NRD(2) | AT91_SMC_SETUP_NCS_RD(0),
  52                &smc->cs[3].setup);
  53        writel(AT91_SMC_PULSE_NWE(3) | AT91_SMC_PULSE_NCS_WR(5) |
  54                AT91_SMC_PULSE_NRD(4) | AT91_SMC_PULSE_NCS_RD(6),
  55                &smc->cs[3].pulse);
  56        writel(AT91_SMC_CYCLE_NWE(5) | AT91_SMC_CYCLE_NRD(7),
  57                &smc->cs[3].cycle);
  58        writel(AT91_SMC_MODE_RM_NRD | AT91_SMC_MODE_WM_NWE |
  59                AT91_SMC_MODE_EXNW_DISABLE |
  60#ifdef CONFIG_SYS_NAND_DBW_16
  61                AT91_SMC_MODE_DBW_16 |
  62#else /* CONFIG_SYS_NAND_DBW_8 */
  63                AT91_SMC_MODE_DBW_8 |
  64#endif
  65                AT91_SMC_MODE_TDF_CYCLE(1),
  66                &smc->cs[3].mode);
  67
  68        /* Configure RDY/BSY pin */
  69        at91_set_pio_input(AT91_PIO_PORTD, 5, 1);
  70
  71        /* Configure ENABLE pin for NandFlash */
  72        at91_set_pio_output(AT91_PIO_PORTD, 4, 1);
  73
  74        at91_set_a_periph(AT91_PIO_PORTD, 0, 1);    /* NAND OE */
  75        at91_set_a_periph(AT91_PIO_PORTD, 1, 1);    /* NAND WE */
  76        at91_set_a_periph(AT91_PIO_PORTD, 2, 1);    /* ALE */
  77        at91_set_a_periph(AT91_PIO_PORTD, 3, 1);    /* CLE */
  78}
  79#endif
  80
  81#ifdef CONFIG_LCD
  82vidinfo_t panel_info = {
  83        .vl_col = 480,
  84        .vl_row = 272,
  85        .vl_clk = 9000000,
  86        .vl_bpix = LCD_BPP,
  87        .vl_sync = 0,
  88        .vl_tft = 1,
  89        .vl_hsync_len = 5,
  90        .vl_left_margin = 8,
  91        .vl_right_margin = 43,
  92        .vl_vsync_len = 10,
  93        .vl_upper_margin = 4,
  94        .vl_lower_margin = 12,
  95        .mmio = ATMEL_BASE_LCDC,
  96};
  97
  98void lcd_enable(void)
  99{
 100        at91_set_pio_output(AT91_PIO_PORTC, 25, 0);     /* power up */
 101}
 102
 103void lcd_disable(void)
 104{
 105        at91_set_pio_output(AT91_PIO_PORTC, 25, 1);     /* power down */
 106}
 107
 108#ifdef CONFIG_LCD_INFO
 109void lcd_show_board_info(void)
 110{
 111        ulong dram_size, nand_size;
 112        int i;
 113        char temp[32];
 114
 115        lcd_printf("%s\n", U_BOOT_VERSION);
 116        lcd_printf("ATMEL Corp\n");
 117        lcd_printf("at91@atmel.com\n");
 118        lcd_printf("%s CPU at %s MHz\n",
 119                ATMEL_CPU_NAME,
 120                strmhz(temp, get_cpu_clk_rate()));
 121
 122        dram_size = 0;
 123        for (i = 0; i < CONFIG_NR_DRAM_BANKS; i++)
 124                dram_size += gd->bd->bi_dram[i].size;
 125        nand_size = 0;
 126        for (i = 0; i < CONFIG_SYS_MAX_NAND_DEVICE; i++)
 127                nand_size += nand_info[i]->size;
 128        lcd_printf("  %ld MB SDRAM, %ld MB NAND\n",
 129                dram_size >> 20,
 130                nand_size >> 20);
 131}
 132#endif /* CONFIG_LCD_INFO */
 133#endif /* CONFIG_LCD */
 134
 135/* SPI chip select control */
 136#ifdef CONFIG_ATMEL_SPI
 137#include <spi.h>
 138int spi_cs_is_valid(unsigned int bus, unsigned int cs)
 139{
 140        return bus == 0 && cs < 2;
 141}
 142
 143void spi_cs_activate(struct spi_slave *slave)
 144{
 145        switch (slave->cs) {
 146        case 0:
 147                at91_set_pio_output(AT91_PIO_PORTA, 14, 0);
 148                break;
 149        case 1:
 150                at91_set_pio_output(AT91_PIO_PORTA, 7, 0);
 151                break;
 152        }
 153}
 154
 155void spi_cs_deactivate(struct spi_slave *slave)
 156{
 157        switch (slave->cs) {
 158        case 0:
 159                at91_set_pio_output(AT91_PIO_PORTA, 14, 1);
 160                break;
 161        case 1:
 162                at91_set_pio_output(AT91_PIO_PORTA, 7, 1);
 163                break;
 164        }
 165}
 166#endif /* CONFIG_ATMEL_SPI */
 167
 168#ifdef CONFIG_GENERIC_ATMEL_MCI
 169int board_mmc_init(bd_t *bd)
 170{
 171        at91_mci_hw_init();
 172
 173        return atmel_mci_init((void *)ATMEL_BASE_HSMCI0);
 174}
 175#endif
 176
 177#ifdef CONFIG_KS8851_MLL
 178void at91sam9n12ek_ks8851_hw_init(void)
 179{
 180        struct at91_smc *smc = (struct at91_smc *)ATMEL_BASE_SMC;
 181
 182        writel(AT91_SMC_SETUP_NWE(2) | AT91_SMC_SETUP_NCS_WR(0) |
 183               AT91_SMC_SETUP_NRD(1) | AT91_SMC_SETUP_NCS_RD(0),
 184               &smc->cs[2].setup);
 185        writel(AT91_SMC_PULSE_NWE(7) | AT91_SMC_PULSE_NCS_WR(7) |
 186               AT91_SMC_PULSE_NRD(7) | AT91_SMC_PULSE_NCS_RD(7),
 187               &smc->cs[2].pulse);
 188        writel(AT91_SMC_CYCLE_NWE(9) | AT91_SMC_CYCLE_NRD(9),
 189               &smc->cs[2].cycle);
 190        writel(AT91_SMC_MODE_RM_NRD | AT91_SMC_MODE_WM_NWE |
 191               AT91_SMC_MODE_EXNW_DISABLE |
 192               AT91_SMC_MODE_BAT | AT91_SMC_MODE_DBW_16 |
 193               AT91_SMC_MODE_TDF_CYCLE(1),
 194               &smc->cs[2].mode);
 195
 196        /* Configure NCS2 PIN */
 197        at91_set_b_periph(AT91_PIO_PORTD, 19, 0);
 198}
 199#endif
 200
 201#ifdef CONFIG_USB_ATMEL
 202void at91sam9n12ek_usb_hw_init(void)
 203{
 204        at91_set_pio_output(AT91_PIO_PORTB, 7, 0);
 205}
 206#endif
 207
 208int board_early_init_f(void)
 209{
 210        at91_periph_clk_enable(ATMEL_ID_PIOAB);
 211        at91_periph_clk_enable(ATMEL_ID_PIOCD);
 212
 213        at91_seriald_hw_init();
 214        return 0;
 215}
 216
 217int board_init(void)
 218{
 219        /* adress of boot parameters */
 220        gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100;
 221
 222#ifdef CONFIG_NAND_ATMEL
 223        at91sam9n12ek_nand_hw_init();
 224#endif
 225
 226#ifdef CONFIG_ATMEL_SPI
 227        at91_spi0_hw_init(1 << 0);
 228#endif
 229
 230#ifdef CONFIG_LCD
 231        at91_lcd_hw_init();
 232#endif
 233
 234#ifdef CONFIG_KS8851_MLL
 235        at91sam9n12ek_ks8851_hw_init();
 236#endif
 237
 238#ifdef CONFIG_USB_ATMEL
 239        at91sam9n12ek_usb_hw_init();
 240#endif
 241
 242        return 0;
 243}
 244
 245#ifdef CONFIG_KS8851_MLL
 246int board_eth_init(bd_t *bis)
 247{
 248        return ks8851_mll_initialize(0, CONFIG_KS8851_MLL_BASEADDR);
 249}
 250#endif
 251
 252int dram_init(void)
 253{
 254        gd->ram_size = get_ram_size((void *)CONFIG_SYS_SDRAM_BASE,
 255                                        CONFIG_SYS_SDRAM_SIZE);
 256        return 0;
 257}
 258
 259#if defined(CONFIG_SPL_BUILD)
 260#include <spl.h>
 261#include <nand.h>
 262
 263void at91_spl_board_init(void)
 264{
 265#ifdef CONFIG_SYS_USE_MMC
 266        at91_mci_hw_init();
 267#elif CONFIG_SYS_USE_NANDFLASH
 268        at91sam9n12ek_nand_hw_init();
 269#elif CONFIG_SYS_USE_SPIFLASH
 270        at91_spi0_hw_init(1 << 4);
 271#endif
 272}
 273
 274#include <asm/arch/atmel_mpddrc.h>
 275static void ddr2_conf(struct atmel_mpddrc_config *ddr2)
 276{
 277        ddr2->md = (ATMEL_MPDDRC_MD_DBW_16_BITS | ATMEL_MPDDRC_MD_DDR2_SDRAM);
 278
 279        ddr2->cr = (ATMEL_MPDDRC_CR_NC_COL_10 |
 280                    ATMEL_MPDDRC_CR_NR_ROW_13 |
 281                    ATMEL_MPDDRC_CR_CAS_DDR_CAS3 |
 282                    ATMEL_MPDDRC_CR_NB_8BANKS |
 283                    ATMEL_MPDDRC_CR_DECOD_INTERLEAVED);
 284
 285        ddr2->rtr = 0x411;
 286
 287        ddr2->tpr0 = (6 << ATMEL_MPDDRC_TPR0_TRAS_OFFSET |
 288                      2 << ATMEL_MPDDRC_TPR0_TRCD_OFFSET |
 289                      2 << ATMEL_MPDDRC_TPR0_TWR_OFFSET |
 290                      8 << ATMEL_MPDDRC_TPR0_TRC_OFFSET |
 291                      2 << ATMEL_MPDDRC_TPR0_TRP_OFFSET |
 292                      2 << ATMEL_MPDDRC_TPR0_TRRD_OFFSET |
 293                      2 << ATMEL_MPDDRC_TPR0_TWTR_OFFSET |
 294                      2 << ATMEL_MPDDRC_TPR0_TMRD_OFFSET);
 295
 296        ddr2->tpr1 = (2 << ATMEL_MPDDRC_TPR1_TXP_OFFSET |
 297                      200 << ATMEL_MPDDRC_TPR1_TXSRD_OFFSET |
 298                      19 << ATMEL_MPDDRC_TPR1_TXSNR_OFFSET |
 299                      18 << ATMEL_MPDDRC_TPR1_TRFC_OFFSET);
 300
 301        ddr2->tpr2 = (2 << ATMEL_MPDDRC_TPR2_TRTP_OFFSET |
 302                      3 << ATMEL_MPDDRC_TPR2_TRPA_OFFSET |
 303                      7 << ATMEL_MPDDRC_TPR2_TXARDS_OFFSET |
 304                      2 << ATMEL_MPDDRC_TPR2_TXARD_OFFSET);
 305}
 306
 307void mem_init(void)
 308{
 309        struct at91_pmc *pmc = (struct at91_pmc *)ATMEL_BASE_PMC;
 310        struct at91_matrix *matrix = (struct at91_matrix *)ATMEL_BASE_MATRIX;
 311        struct atmel_mpddrc_config ddr2;
 312        unsigned long csa;
 313
 314        ddr2_conf(&ddr2);
 315
 316        /* enable DDR2 clock */
 317        writel(AT91_PMC_DDR, &pmc->scer);
 318
 319        /* Chip select 1 is for DDR2/SDRAM */
 320        csa = readl(&matrix->ebicsa);
 321        csa |= AT91_MATRIX_EBI_CS1A_SDRAMC;
 322        csa &= ~AT91_MATRIX_EBI_DBPU_OFF;
 323        csa |= AT91_MATRIX_EBI_DBPD_OFF;
 324        csa |= AT91_MATRIX_EBI_EBI_IOSR_NORMAL;
 325        writel(csa, &matrix->ebicsa);
 326
 327        /* DDRAM2 Controller initialize */
 328        ddr2_init(ATMEL_BASE_DDRSDRC, ATMEL_BASE_CS1, &ddr2);
 329}
 330#endif
 331