board/atmel/at91sam9n12ek/at91sam9n12ek.c

   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
  26 DECLARE_GLOBAL_DATA_PTR;
  27
  28 /* ------------------------------------------------------------------------- */
  29 /*
  30  * Miscelaneous platform dependent initialisations
  31  */
  32 #ifdef CONFIG_NAND_ATMEL
  33 static 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
  82 vidinfo_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
  98 void lcd_enable(void)
  99 {
 100         at91_set_pio_output(AT91_PIO_PORTC, 25, 0);     /* power up */
 101 }
 102
 103 void lcd_disable(void)
 104 {
 105         at91_set_pio_output(AT91_PIO_PORTC, 25, 1);     /* power down */
 106 }
 107
 108 #ifdef CONFIG_LCD_INFO
 109 void 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>
 138 int spi_cs_is_valid(unsigned int bus, unsigned int cs)
 139 {
 140         return bus == 0 && cs < 2;
 141 }
 142
 143 void 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
 155 void 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
 169 int 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
 178 void 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
 202 void at91sam9n12ek_usb_hw_init(void)
 203 {
 204         at91_set_pio_output(AT91_PIO_PORTB, 7, 0);
 205 }
 206 #endif
 207
 208 int 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
 217 int 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
 246 int board_eth_init(bd_t *bis)
 247 {
 248         return ks8851_mll_initialize(0, CONFIG_KS8851_MLL_BASEADDR);
 249 }
 250 #endif
 251
 252 int 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
 263 void 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>
 275 static 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
 307 void 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