uboot/board/aries/m53evk/m53evk.c
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   1/*
   2 * Aries M53 module
   3 *
   4 * Copyright (C) 2012-2013 Marek Vasut <marex@denx.de>
   5 *
   6 * SPDX-License-Identifier:     GPL-2.0+
   7 */
   8
   9#include <common.h>
  10#include <asm/io.h>
  11#include <asm/arch/imx-regs.h>
  12#include <asm/arch/sys_proto.h>
  13#include <asm/arch/crm_regs.h>
  14#include <asm/arch/clock.h>
  15#include <asm/arch/iomux-mx53.h>
  16#include <asm/mach-imx/mx5_video.h>
  17#include <asm/spl.h>
  18#include <linux/errno.h>
  19#include <netdev.h>
  20#include <i2c.h>
  21#include <mmc.h>
  22#include <spl.h>
  23#include <fsl_esdhc.h>
  24#include <asm/gpio.h>
  25#include <usb/ehci-ci.h>
  26#include <linux/fb.h>
  27#include <ipu_pixfmt.h>
  28
  29/* Special MXCFB sync flags are here. */
  30#include "../drivers/video/mxcfb.h"
  31
  32DECLARE_GLOBAL_DATA_PTR;
  33
  34static uint32_t mx53_dram_size[2];
  35
  36phys_size_t get_effective_memsize(void)
  37{
  38        /*
  39         * WARNING: We must override get_effective_memsize() function here
  40         * to report only the size of the first DRAM bank. This is to make
  41         * U-Boot relocator place U-Boot into valid memory, that is, at the
  42         * end of the first DRAM bank. If we did not override this function
  43         * like so, U-Boot would be placed at the address of the first DRAM
  44         * bank + total DRAM size - sizeof(uboot), which in the setup where
  45         * each DRAM bank contains 512MiB of DRAM would result in placing
  46         * U-Boot into invalid memory area close to the end of the first
  47         * DRAM bank.
  48         */
  49        return mx53_dram_size[0];
  50}
  51
  52int dram_init(void)
  53{
  54        mx53_dram_size[0] = get_ram_size((void *)PHYS_SDRAM_1, 1 << 30);
  55        mx53_dram_size[1] = get_ram_size((void *)PHYS_SDRAM_2, 1 << 30);
  56
  57        gd->ram_size = mx53_dram_size[0] + mx53_dram_size[1];
  58
  59        return 0;
  60}
  61
  62int dram_init_banksize(void)
  63{
  64        gd->bd->bi_dram[0].start = PHYS_SDRAM_1;
  65        gd->bd->bi_dram[0].size = mx53_dram_size[0];
  66
  67        gd->bd->bi_dram[1].start = PHYS_SDRAM_2;
  68        gd->bd->bi_dram[1].size = mx53_dram_size[1];
  69
  70        return 0;
  71}
  72
  73static void setup_iomux_uart(void)
  74{
  75        static const iomux_v3_cfg_t uart_pads[] = {
  76                MX53_PAD_PATA_BUFFER_EN__UART2_RXD_MUX,
  77                MX53_PAD_PATA_DMARQ__UART2_TXD_MUX,
  78        };
  79
  80        imx_iomux_v3_setup_multiple_pads(uart_pads, ARRAY_SIZE(uart_pads));
  81}
  82
  83#ifdef CONFIG_USB_EHCI_MX5
  84int board_ehci_hcd_init(int port)
  85{
  86        if (port == 0) {
  87                /* USB OTG PWRON */
  88                imx_iomux_v3_setup_pad(NEW_PAD_CTRL(MX53_PAD_GPIO_4__GPIO1_4,
  89                                        PAD_CTL_PKE | PAD_CTL_DSE_HIGH));
  90                gpio_direction_output(IMX_GPIO_NR(1, 4), 0);
  91
  92                /* USB OTG Over Current */
  93                imx_iomux_v3_setup_pad(MX53_PAD_GPIO_18__GPIO7_13);
  94        } else if (port == 1) {
  95                /* USB Host PWRON */
  96                imx_iomux_v3_setup_pad(NEW_PAD_CTRL(MX53_PAD_GPIO_2__GPIO1_2,
  97                                        PAD_CTL_PKE | PAD_CTL_DSE_HIGH));
  98                gpio_direction_output(IMX_GPIO_NR(1, 2), 0);
  99
 100                /* USB Host Over Current */
 101                imx_iomux_v3_setup_pad(MX53_PAD_GPIO_3__USBOH3_USBH1_OC);
 102        }
 103
 104        return 0;
 105}
 106#endif
 107
 108static void setup_iomux_fec(void)
 109{
 110        static const iomux_v3_cfg_t fec_pads[] = {
 111                /* MDIO pads */
 112                NEW_PAD_CTRL(MX53_PAD_FEC_MDIO__FEC_MDIO, PAD_CTL_HYS |
 113                        PAD_CTL_DSE_HIGH | PAD_CTL_PUS_22K_UP | PAD_CTL_ODE),
 114                NEW_PAD_CTRL(MX53_PAD_FEC_MDC__FEC_MDC, PAD_CTL_DSE_HIGH),
 115
 116                /* FEC 0 pads */
 117                NEW_PAD_CTRL(MX53_PAD_FEC_CRS_DV__FEC_RX_DV,
 118                                PAD_CTL_HYS | PAD_CTL_PKE),
 119                NEW_PAD_CTRL(MX53_PAD_FEC_REF_CLK__FEC_TX_CLK,
 120                                PAD_CTL_HYS | PAD_CTL_PKE),
 121                NEW_PAD_CTRL(MX53_PAD_FEC_RX_ER__FEC_RX_ER,
 122                                PAD_CTL_HYS | PAD_CTL_PKE),
 123                NEW_PAD_CTRL(MX53_PAD_FEC_TX_EN__FEC_TX_EN, PAD_CTL_DSE_HIGH),
 124                NEW_PAD_CTRL(MX53_PAD_FEC_RXD0__FEC_RDATA_0,
 125                                PAD_CTL_HYS | PAD_CTL_PKE),
 126                NEW_PAD_CTRL(MX53_PAD_FEC_RXD1__FEC_RDATA_1,
 127                                PAD_CTL_HYS | PAD_CTL_PKE),
 128                NEW_PAD_CTRL(MX53_PAD_FEC_TXD0__FEC_TDATA_0, PAD_CTL_DSE_HIGH),
 129                NEW_PAD_CTRL(MX53_PAD_FEC_TXD1__FEC_TDATA_1, PAD_CTL_DSE_HIGH),
 130
 131                /* FEC 1 pads */
 132                NEW_PAD_CTRL(MX53_PAD_KEY_COL0__FEC_RDATA_3,
 133                                PAD_CTL_HYS | PAD_CTL_PKE),
 134                NEW_PAD_CTRL(MX53_PAD_KEY_ROW0__FEC_TX_ER,
 135                                PAD_CTL_HYS | PAD_CTL_PKE),
 136                NEW_PAD_CTRL(MX53_PAD_KEY_COL1__FEC_RX_CLK,
 137                                PAD_CTL_HYS | PAD_CTL_PKE),
 138                NEW_PAD_CTRL(MX53_PAD_KEY_ROW1__FEC_COL,
 139                                PAD_CTL_HYS | PAD_CTL_PKE),
 140                NEW_PAD_CTRL(MX53_PAD_KEY_COL2__FEC_RDATA_2,
 141                                PAD_CTL_HYS | PAD_CTL_PKE),
 142                NEW_PAD_CTRL(MX53_PAD_KEY_ROW2__FEC_TDATA_2, PAD_CTL_DSE_HIGH),
 143                NEW_PAD_CTRL(MX53_PAD_KEY_COL3__FEC_CRS,
 144                                PAD_CTL_HYS | PAD_CTL_PKE),
 145                NEW_PAD_CTRL(MX53_PAD_GPIO_19__FEC_TDATA_3, PAD_CTL_DSE_HIGH),
 146        };
 147
 148        imx_iomux_v3_setup_multiple_pads(fec_pads, ARRAY_SIZE(fec_pads));
 149}
 150
 151#ifdef CONFIG_FSL_ESDHC
 152struct fsl_esdhc_cfg esdhc_cfg = {
 153        MMC_SDHC1_BASE_ADDR,
 154};
 155
 156int board_mmc_getcd(struct mmc *mmc)
 157{
 158        imx_iomux_v3_setup_pad(MX53_PAD_GPIO_1__GPIO1_1);
 159        gpio_direction_input(IMX_GPIO_NR(1, 1));
 160
 161        return !gpio_get_value(IMX_GPIO_NR(1, 1));
 162}
 163
 164#define SD_CMD_PAD_CTRL         (PAD_CTL_HYS | PAD_CTL_DSE_HIGH | \
 165                                 PAD_CTL_PUS_100K_UP)
 166#define SD_PAD_CTRL             (PAD_CTL_HYS | PAD_CTL_PUS_47K_UP | \
 167                                 PAD_CTL_DSE_HIGH)
 168
 169int board_mmc_init(bd_t *bis)
 170{
 171        static const iomux_v3_cfg_t sd1_pads[] = {
 172                NEW_PAD_CTRL(MX53_PAD_SD1_CMD__ESDHC1_CMD, SD_CMD_PAD_CTRL),
 173                NEW_PAD_CTRL(MX53_PAD_SD1_CLK__ESDHC1_CLK, SD_PAD_CTRL),
 174                NEW_PAD_CTRL(MX53_PAD_SD1_DATA0__ESDHC1_DAT0, SD_PAD_CTRL),
 175                NEW_PAD_CTRL(MX53_PAD_SD1_DATA1__ESDHC1_DAT1, SD_PAD_CTRL),
 176                NEW_PAD_CTRL(MX53_PAD_SD1_DATA2__ESDHC1_DAT2, SD_PAD_CTRL),
 177                NEW_PAD_CTRL(MX53_PAD_SD1_DATA3__ESDHC1_DAT3, SD_PAD_CTRL),
 178                MX53_PAD_EIM_DA13__GPIO3_13,
 179
 180                MX53_PAD_EIM_EB3__GPIO2_31, /* SD power */
 181        };
 182
 183        esdhc_cfg.sdhc_clk = mxc_get_clock(MXC_ESDHC_CLK);
 184
 185        imx_iomux_v3_setup_multiple_pads(sd1_pads, ARRAY_SIZE(sd1_pads));
 186
 187        /* GPIO 2_31 is SD power */
 188        gpio_direction_output(IMX_GPIO_NR(2, 31), 0);
 189
 190        return fsl_esdhc_initialize(bis, &esdhc_cfg);
 191}
 192#endif
 193
 194#ifdef CONFIG_VIDEO
 195static struct fb_videomode const ampire_wvga = {
 196        .name           = "Ampire",
 197        .refresh        = 60,
 198        .xres           = 800,
 199        .yres           = 480,
 200        .pixclock       = 29851, /* picosecond (33.5 MHz) */
 201        .left_margin    = 89,
 202        .right_margin   = 164,
 203        .upper_margin   = 23,
 204        .lower_margin   = 10,
 205        .hsync_len      = 10,
 206        .vsync_len      = 10,
 207        .sync           = FB_SYNC_CLK_LAT_FALL,
 208};
 209
 210int board_video_skip(void)
 211{
 212        int ret;
 213        ret = ipuv3_fb_init(&ampire_wvga, 1, IPU_PIX_FMT_RGB666);
 214        if (ret)
 215                printf("Ampire LCD cannot be configured: %d\n", ret);
 216        return ret;
 217}
 218#endif
 219
 220#define I2C_PAD_CTRL    (PAD_CTL_SRE_FAST | PAD_CTL_DSE_HIGH | \
 221                         PAD_CTL_PUS_100K_UP | PAD_CTL_ODE)
 222
 223static void setup_iomux_i2c(void)
 224{
 225        static const iomux_v3_cfg_t i2c_pads[] = {
 226                NEW_PAD_CTRL(MX53_PAD_EIM_D16__I2C2_SDA, I2C_PAD_CTRL),
 227                NEW_PAD_CTRL(MX53_PAD_EIM_EB2__I2C2_SCL, I2C_PAD_CTRL),
 228        };
 229
 230        imx_iomux_v3_setup_multiple_pads(i2c_pads, ARRAY_SIZE(i2c_pads));
 231}
 232
 233static void setup_iomux_video(void)
 234{
 235        static const iomux_v3_cfg_t lcd_pads[] = {
 236                MX53_PAD_EIM_DA9__IPU_DISP1_DAT_0,
 237                MX53_PAD_EIM_DA8__IPU_DISP1_DAT_1,
 238                MX53_PAD_EIM_DA7__IPU_DISP1_DAT_2,
 239                MX53_PAD_EIM_DA6__IPU_DISP1_DAT_3,
 240                MX53_PAD_EIM_DA5__IPU_DISP1_DAT_4,
 241                MX53_PAD_EIM_DA4__IPU_DISP1_DAT_5,
 242                MX53_PAD_EIM_DA3__IPU_DISP1_DAT_6,
 243                MX53_PAD_EIM_DA2__IPU_DISP1_DAT_7,
 244                MX53_PAD_EIM_DA1__IPU_DISP1_DAT_8,
 245                MX53_PAD_EIM_DA0__IPU_DISP1_DAT_9,
 246                MX53_PAD_EIM_EB1__IPU_DISP1_DAT_10,
 247                MX53_PAD_EIM_EB0__IPU_DISP1_DAT_11,
 248                MX53_PAD_EIM_A17__IPU_DISP1_DAT_12,
 249                MX53_PAD_EIM_A18__IPU_DISP1_DAT_13,
 250                MX53_PAD_EIM_A19__IPU_DISP1_DAT_14,
 251                MX53_PAD_EIM_A20__IPU_DISP1_DAT_15,
 252                MX53_PAD_EIM_A21__IPU_DISP1_DAT_16,
 253                MX53_PAD_EIM_A22__IPU_DISP1_DAT_17,
 254                MX53_PAD_EIM_A23__IPU_DISP1_DAT_18,
 255                MX53_PAD_EIM_A24__IPU_DISP1_DAT_19,
 256                MX53_PAD_EIM_D31__IPU_DISP1_DAT_20,
 257                MX53_PAD_EIM_D30__IPU_DISP1_DAT_21,
 258                MX53_PAD_EIM_D26__IPU_DISP1_DAT_22,
 259                MX53_PAD_EIM_D27__IPU_DISP1_DAT_23,
 260                MX53_PAD_EIM_A16__IPU_DI1_DISP_CLK,
 261                MX53_PAD_EIM_DA13__IPU_DI1_D0_CS,
 262                MX53_PAD_EIM_DA14__IPU_DI1_D1_CS,
 263                MX53_PAD_EIM_DA15__IPU_DI1_PIN1,
 264                MX53_PAD_EIM_DA11__IPU_DI1_PIN2,
 265                MX53_PAD_EIM_DA12__IPU_DI1_PIN3,
 266                MX53_PAD_EIM_A25__IPU_DI1_PIN12,
 267                MX53_PAD_EIM_DA10__IPU_DI1_PIN15,
 268        };
 269
 270        imx_iomux_v3_setup_multiple_pads(lcd_pads, ARRAY_SIZE(lcd_pads));
 271}
 272
 273static void setup_iomux_nand(void)
 274{
 275        static const iomux_v3_cfg_t nand_pads[] = {
 276                NEW_PAD_CTRL(MX53_PAD_NANDF_WE_B__EMI_NANDF_WE_B,
 277                                PAD_CTL_DSE_HIGH),
 278                NEW_PAD_CTRL(MX53_PAD_NANDF_RE_B__EMI_NANDF_RE_B,
 279                                PAD_CTL_DSE_HIGH),
 280                NEW_PAD_CTRL(MX53_PAD_NANDF_CLE__EMI_NANDF_CLE,
 281                                PAD_CTL_DSE_HIGH),
 282                NEW_PAD_CTRL(MX53_PAD_NANDF_ALE__EMI_NANDF_ALE,
 283                                PAD_CTL_DSE_HIGH),
 284                NEW_PAD_CTRL(MX53_PAD_NANDF_WP_B__EMI_NANDF_WP_B,
 285                                PAD_CTL_PUS_100K_UP),
 286                NEW_PAD_CTRL(MX53_PAD_NANDF_RB0__EMI_NANDF_RB_0,
 287                                PAD_CTL_PUS_100K_UP),
 288                NEW_PAD_CTRL(MX53_PAD_NANDF_CS0__EMI_NANDF_CS_0,
 289                                PAD_CTL_DSE_HIGH),
 290                NEW_PAD_CTRL(MX53_PAD_PATA_DATA0__EMI_NANDF_D_0,
 291                                PAD_CTL_DSE_HIGH | PAD_CTL_PKE),
 292                NEW_PAD_CTRL(MX53_PAD_PATA_DATA1__EMI_NANDF_D_1,
 293                                PAD_CTL_DSE_HIGH | PAD_CTL_PKE),
 294                NEW_PAD_CTRL(MX53_PAD_PATA_DATA2__EMI_NANDF_D_2,
 295                                PAD_CTL_DSE_HIGH | PAD_CTL_PKE),
 296                NEW_PAD_CTRL(MX53_PAD_PATA_DATA3__EMI_NANDF_D_3,
 297                                PAD_CTL_DSE_HIGH | PAD_CTL_PKE),
 298                NEW_PAD_CTRL(MX53_PAD_PATA_DATA4__EMI_NANDF_D_4,
 299                                PAD_CTL_DSE_HIGH | PAD_CTL_PKE),
 300                NEW_PAD_CTRL(MX53_PAD_PATA_DATA5__EMI_NANDF_D_5,
 301                                PAD_CTL_DSE_HIGH | PAD_CTL_PKE),
 302                NEW_PAD_CTRL(MX53_PAD_PATA_DATA6__EMI_NANDF_D_6,
 303                                PAD_CTL_DSE_HIGH | PAD_CTL_PKE),
 304                NEW_PAD_CTRL(MX53_PAD_PATA_DATA7__EMI_NANDF_D_7,
 305                                PAD_CTL_DSE_HIGH | PAD_CTL_PKE),
 306        };
 307
 308        imx_iomux_v3_setup_multiple_pads(nand_pads, ARRAY_SIZE(nand_pads));
 309}
 310
 311static void m53_set_clock(void)
 312{
 313        int ret;
 314        const uint32_t ref_clk = MXC_HCLK;
 315        const uint32_t dramclk = 400;
 316        uint32_t cpuclk;
 317
 318        imx_iomux_v3_setup_pad(NEW_PAD_CTRL(MX53_PAD_GPIO_10__GPIO4_0,
 319                                            PAD_CTL_DSE_HIGH | PAD_CTL_PKE));
 320        gpio_direction_input(IMX_GPIO_NR(4, 0));
 321
 322        /* GPIO10 selects modules' CPU speed, 1 = 1200MHz ; 0 = 800MHz */
 323        cpuclk = gpio_get_value(IMX_GPIO_NR(4, 0)) ? 1200 : 800;
 324
 325        ret = mxc_set_clock(ref_clk, cpuclk, MXC_ARM_CLK);
 326        if (ret)
 327                printf("CPU:   Switch CPU clock to %dMHz failed\n", cpuclk);
 328
 329        ret = mxc_set_clock(ref_clk, dramclk, MXC_PERIPH_CLK);
 330        if (ret) {
 331                printf("CPU:   Switch peripheral clock to %dMHz failed\n",
 332                        dramclk);
 333        }
 334
 335        ret = mxc_set_clock(ref_clk, dramclk, MXC_DDR_CLK);
 336        if (ret)
 337                printf("CPU:   Switch DDR clock to %dMHz failed\n", dramclk);
 338}
 339
 340static void m53_set_nand(void)
 341{
 342        u32 i;
 343
 344        /* NAND flash is muxed on ATA pins */
 345        setbits_le32(M4IF_BASE_ADDR + 0xc, M4IF_GENP_WEIM_MM_MASK);
 346
 347        /* Wait for Grant/Ack sequence (see EIM_CSnGCR2:MUX16_BYP_GRANT) */
 348        for (i = 0x4; i < 0x94; i += 0x18) {
 349                clrbits_le32(WEIM_BASE_ADDR + i,
 350                             WEIM_GCR2_MUX16_BYP_GRANT_MASK);
 351        }
 352
 353        mxc_set_clock(0, 33, MXC_NFC_CLK);
 354        enable_nfc_clk(1);
 355}
 356
 357int board_early_init_f(void)
 358{
 359        setup_iomux_uart();
 360        setup_iomux_fec();
 361        setup_iomux_i2c();
 362        setup_iomux_nand();
 363        setup_iomux_video();
 364
 365        m53_set_clock();
 366
 367        mxc_set_sata_internal_clock();
 368
 369        /* NAND clock @ 33MHz */
 370        m53_set_nand();
 371
 372        return 0;
 373}
 374
 375int board_init(void)
 376{
 377        gd->bd->bi_boot_params = PHYS_SDRAM_1 + 0x100;
 378
 379        return 0;
 380}
 381
 382int checkboard(void)
 383{
 384        puts("Board: Aries M53EVK\n");
 385
 386        return 0;
 387}
 388
 389/*
 390 * NAND SPL
 391 */
 392#ifdef CONFIG_SPL_BUILD
 393void spl_board_init(void)
 394{
 395        setup_iomux_nand();
 396        m53_set_clock();
 397        m53_set_nand();
 398}
 399
 400u32 spl_boot_device(void)
 401{
 402        return BOOT_DEVICE_NAND;
 403}
 404#endif
 405