uboot/board/denx/m53evk/m53evk.c
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   1/*
   2 * DENX 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/imx-common/mx5_video.h>
  17#include <asm/arch/spl.h>
  18#include <asm/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-fsl.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
  62void 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
  71static void setup_iomux_uart(void)
  72{
  73        static const iomux_v3_cfg_t uart_pads[] = {
  74                MX53_PAD_PATA_BUFFER_EN__UART2_RXD_MUX,
  75                MX53_PAD_PATA_DMARQ__UART2_TXD_MUX,
  76        };
  77
  78        imx_iomux_v3_setup_multiple_pads(uart_pads, ARRAY_SIZE(uart_pads));
  79}
  80
  81#ifdef CONFIG_USB_EHCI_MX5
  82int board_ehci_hcd_init(int port)
  83{
  84        if (port == 0) {
  85                /* USB OTG PWRON */
  86                imx_iomux_v3_setup_pad(NEW_PAD_CTRL(MX53_PAD_GPIO_4__GPIO1_4,
  87                                        PAD_CTL_PKE | PAD_CTL_DSE_HIGH));
  88                gpio_direction_output(IMX_GPIO_NR(1, 4), 0);
  89
  90                /* USB OTG Over Current */
  91                imx_iomux_v3_setup_pad(MX53_PAD_GPIO_18__GPIO7_13);
  92        } else if (port == 1) {
  93                /* USB Host PWRON */
  94                imx_iomux_v3_setup_pad(NEW_PAD_CTRL(MX53_PAD_GPIO_2__GPIO1_2,
  95                                        PAD_CTL_PKE | PAD_CTL_DSE_HIGH));
  96                gpio_direction_output(IMX_GPIO_NR(1, 2), 0);
  97
  98                /* USB Host Over Current */
  99                imx_iomux_v3_setup_pad(MX53_PAD_GPIO_3__USBOH3_USBH1_OC);
 100        }
 101
 102        return 0;
 103}
 104#endif
 105
 106static void setup_iomux_fec(void)
 107{
 108        static const iomux_v3_cfg_t fec_pads[] = {
 109                /* MDIO pads */
 110                NEW_PAD_CTRL(MX53_PAD_FEC_MDIO__FEC_MDIO, PAD_CTL_HYS |
 111                        PAD_CTL_DSE_HIGH | PAD_CTL_PUS_22K_UP | PAD_CTL_ODE),
 112                NEW_PAD_CTRL(MX53_PAD_FEC_MDC__FEC_MDC, PAD_CTL_DSE_HIGH),
 113
 114                /* FEC 0 pads */
 115                NEW_PAD_CTRL(MX53_PAD_FEC_CRS_DV__FEC_RX_DV,
 116                                PAD_CTL_HYS | PAD_CTL_PKE),
 117                NEW_PAD_CTRL(MX53_PAD_FEC_REF_CLK__FEC_TX_CLK,
 118                                PAD_CTL_HYS | PAD_CTL_PKE),
 119                NEW_PAD_CTRL(MX53_PAD_FEC_RX_ER__FEC_RX_ER,
 120                                PAD_CTL_HYS | PAD_CTL_PKE),
 121                NEW_PAD_CTRL(MX53_PAD_FEC_TX_EN__FEC_TX_EN, PAD_CTL_DSE_HIGH),
 122                NEW_PAD_CTRL(MX53_PAD_FEC_RXD0__FEC_RDATA_0,
 123                                PAD_CTL_HYS | PAD_CTL_PKE),
 124                NEW_PAD_CTRL(MX53_PAD_FEC_RXD1__FEC_RDATA_1,
 125                                PAD_CTL_HYS | PAD_CTL_PKE),
 126                NEW_PAD_CTRL(MX53_PAD_FEC_TXD0__FEC_TDATA_0, PAD_CTL_DSE_HIGH),
 127                NEW_PAD_CTRL(MX53_PAD_FEC_TXD1__FEC_TDATA_1, PAD_CTL_DSE_HIGH),
 128
 129                /* FEC 1 pads */
 130                NEW_PAD_CTRL(MX53_PAD_KEY_COL0__FEC_RDATA_3,
 131                                PAD_CTL_HYS | PAD_CTL_PKE),
 132                NEW_PAD_CTRL(MX53_PAD_KEY_ROW0__FEC_TX_ER,
 133                                PAD_CTL_HYS | PAD_CTL_PKE),
 134                NEW_PAD_CTRL(MX53_PAD_KEY_COL1__FEC_RX_CLK,
 135                                PAD_CTL_HYS | PAD_CTL_PKE),
 136                NEW_PAD_CTRL(MX53_PAD_KEY_ROW1__FEC_COL,
 137                                PAD_CTL_HYS | PAD_CTL_PKE),
 138                NEW_PAD_CTRL(MX53_PAD_KEY_COL2__FEC_RDATA_2,
 139                                PAD_CTL_HYS | PAD_CTL_PKE),
 140                NEW_PAD_CTRL(MX53_PAD_KEY_ROW2__FEC_TDATA_2, PAD_CTL_DSE_HIGH),
 141                NEW_PAD_CTRL(MX53_PAD_KEY_COL3__FEC_CRS,
 142                                PAD_CTL_HYS | PAD_CTL_PKE),
 143                NEW_PAD_CTRL(MX53_PAD_GPIO_19__FEC_TDATA_3, PAD_CTL_DSE_HIGH),
 144        };
 145
 146        imx_iomux_v3_setup_multiple_pads(fec_pads, ARRAY_SIZE(fec_pads));
 147}
 148
 149#ifdef CONFIG_FSL_ESDHC
 150struct fsl_esdhc_cfg esdhc_cfg = {
 151        MMC_SDHC1_BASE_ADDR,
 152};
 153
 154int board_mmc_getcd(struct mmc *mmc)
 155{
 156        imx_iomux_v3_setup_pad(MX53_PAD_GPIO_1__GPIO1_1);
 157        gpio_direction_input(IMX_GPIO_NR(1, 1));
 158
 159        return !gpio_get_value(IMX_GPIO_NR(1, 1));
 160}
 161
 162#define SD_CMD_PAD_CTRL         (PAD_CTL_HYS | PAD_CTL_DSE_HIGH | \
 163                                 PAD_CTL_PUS_100K_UP)
 164#define SD_PAD_CTRL             (PAD_CTL_HYS | PAD_CTL_PUS_47K_UP | \
 165                                 PAD_CTL_DSE_HIGH)
 166
 167int board_mmc_init(bd_t *bis)
 168{
 169        static const iomux_v3_cfg_t sd1_pads[] = {
 170                NEW_PAD_CTRL(MX53_PAD_SD1_CMD__ESDHC1_CMD, SD_CMD_PAD_CTRL),
 171                NEW_PAD_CTRL(MX53_PAD_SD1_CLK__ESDHC1_CLK, SD_PAD_CTRL),
 172                NEW_PAD_CTRL(MX53_PAD_SD1_DATA0__ESDHC1_DAT0, SD_PAD_CTRL),
 173                NEW_PAD_CTRL(MX53_PAD_SD1_DATA1__ESDHC1_DAT1, SD_PAD_CTRL),
 174                NEW_PAD_CTRL(MX53_PAD_SD1_DATA2__ESDHC1_DAT2, SD_PAD_CTRL),
 175                NEW_PAD_CTRL(MX53_PAD_SD1_DATA3__ESDHC1_DAT3, SD_PAD_CTRL),
 176                MX53_PAD_EIM_DA13__GPIO3_13,
 177
 178                MX53_PAD_EIM_EB3__GPIO2_31, /* SD power */
 179        };
 180
 181        esdhc_cfg.sdhc_clk = mxc_get_clock(MXC_ESDHC_CLK);
 182
 183        imx_iomux_v3_setup_multiple_pads(sd1_pads, ARRAY_SIZE(sd1_pads));
 184
 185        /* GPIO 2_31 is SD power */
 186        gpio_direction_output(IMX_GPIO_NR(2, 31), 0);
 187
 188        return fsl_esdhc_initialize(bis, &esdhc_cfg);
 189}
 190#endif
 191
 192#ifdef CONFIG_VIDEO
 193static struct fb_videomode const ampire_wvga = {
 194        .name           = "Ampire",
 195        .refresh        = 60,
 196        .xres           = 800,
 197        .yres           = 480,
 198        .pixclock       = 29851, /* picosecond (33.5 MHz) */
 199        .left_margin    = 89,
 200        .right_margin   = 164,
 201        .upper_margin   = 23,
 202        .lower_margin   = 10,
 203        .hsync_len      = 10,
 204        .vsync_len      = 10,
 205        .sync           = FB_SYNC_CLK_LAT_FALL,
 206};
 207
 208int board_video_skip(void)
 209{
 210        int ret;
 211        ret = ipuv3_fb_init(&ampire_wvga, 1, IPU_PIX_FMT_RGB666);
 212        if (ret)
 213                printf("Ampire LCD cannot be configured: %d\n", ret);
 214        return ret;
 215}
 216#endif
 217
 218#define I2C_PAD_CTRL    (PAD_CTL_SRE_FAST | PAD_CTL_DSE_HIGH | \
 219                         PAD_CTL_PUS_100K_UP | PAD_CTL_ODE)
 220
 221static void setup_iomux_i2c(void)
 222{
 223        static const iomux_v3_cfg_t i2c_pads[] = {
 224                NEW_PAD_CTRL(MX53_PAD_EIM_D16__I2C2_SDA, I2C_PAD_CTRL),
 225                NEW_PAD_CTRL(MX53_PAD_EIM_EB2__I2C2_SCL, I2C_PAD_CTRL),
 226        };
 227
 228        imx_iomux_v3_setup_multiple_pads(i2c_pads, ARRAY_SIZE(i2c_pads));
 229}
 230
 231static void setup_iomux_video(void)
 232{
 233        static const iomux_v3_cfg_t lcd_pads[] = {
 234                MX53_PAD_EIM_DA9__IPU_DISP1_DAT_0,
 235                MX53_PAD_EIM_DA8__IPU_DISP1_DAT_1,
 236                MX53_PAD_EIM_DA7__IPU_DISP1_DAT_2,
 237                MX53_PAD_EIM_DA6__IPU_DISP1_DAT_3,
 238                MX53_PAD_EIM_DA5__IPU_DISP1_DAT_4,
 239                MX53_PAD_EIM_DA4__IPU_DISP1_DAT_5,
 240                MX53_PAD_EIM_DA3__IPU_DISP1_DAT_6,
 241                MX53_PAD_EIM_DA2__IPU_DISP1_DAT_7,
 242                MX53_PAD_EIM_DA1__IPU_DISP1_DAT_8,
 243                MX53_PAD_EIM_DA0__IPU_DISP1_DAT_9,
 244                MX53_PAD_EIM_EB1__IPU_DISP1_DAT_10,
 245                MX53_PAD_EIM_EB0__IPU_DISP1_DAT_11,
 246                MX53_PAD_EIM_A17__IPU_DISP1_DAT_12,
 247                MX53_PAD_EIM_A18__IPU_DISP1_DAT_13,
 248                MX53_PAD_EIM_A19__IPU_DISP1_DAT_14,
 249                MX53_PAD_EIM_A20__IPU_DISP1_DAT_15,
 250                MX53_PAD_EIM_A21__IPU_DISP1_DAT_16,
 251                MX53_PAD_EIM_A22__IPU_DISP1_DAT_17,
 252                MX53_PAD_EIM_A23__IPU_DISP1_DAT_18,
 253                MX53_PAD_EIM_A24__IPU_DISP1_DAT_19,
 254                MX53_PAD_EIM_D31__IPU_DISP1_DAT_20,
 255                MX53_PAD_EIM_D30__IPU_DISP1_DAT_21,
 256                MX53_PAD_EIM_D26__IPU_DISP1_DAT_22,
 257                MX53_PAD_EIM_D27__IPU_DISP1_DAT_23,
 258                MX53_PAD_EIM_A16__IPU_DI1_DISP_CLK,
 259                MX53_PAD_EIM_DA13__IPU_DI1_D0_CS,
 260                MX53_PAD_EIM_DA14__IPU_DI1_D1_CS,
 261                MX53_PAD_EIM_DA15__IPU_DI1_PIN1,
 262                MX53_PAD_EIM_DA11__IPU_DI1_PIN2,
 263                MX53_PAD_EIM_DA12__IPU_DI1_PIN3,
 264                MX53_PAD_EIM_A25__IPU_DI1_PIN12,
 265                MX53_PAD_EIM_DA10__IPU_DI1_PIN15,
 266        };
 267
 268        imx_iomux_v3_setup_multiple_pads(lcd_pads, ARRAY_SIZE(lcd_pads));
 269}
 270
 271static void setup_iomux_nand(void)
 272{
 273        static const iomux_v3_cfg_t nand_pads[] = {
 274                NEW_PAD_CTRL(MX53_PAD_NANDF_WE_B__EMI_NANDF_WE_B,
 275                                PAD_CTL_DSE_HIGH),
 276                NEW_PAD_CTRL(MX53_PAD_NANDF_RE_B__EMI_NANDF_RE_B,
 277                                PAD_CTL_DSE_HIGH),
 278                NEW_PAD_CTRL(MX53_PAD_NANDF_CLE__EMI_NANDF_CLE,
 279                                PAD_CTL_DSE_HIGH),
 280                NEW_PAD_CTRL(MX53_PAD_NANDF_ALE__EMI_NANDF_ALE,
 281                                PAD_CTL_DSE_HIGH),
 282                NEW_PAD_CTRL(MX53_PAD_NANDF_WP_B__EMI_NANDF_WP_B,
 283                                PAD_CTL_PUS_100K_UP),
 284                NEW_PAD_CTRL(MX53_PAD_NANDF_RB0__EMI_NANDF_RB_0,
 285                                PAD_CTL_PUS_100K_UP),
 286                NEW_PAD_CTRL(MX53_PAD_NANDF_CS0__EMI_NANDF_CS_0,
 287                                PAD_CTL_DSE_HIGH),
 288                NEW_PAD_CTRL(MX53_PAD_PATA_DATA0__EMI_NANDF_D_0,
 289                                PAD_CTL_DSE_HIGH | PAD_CTL_PKE),
 290                NEW_PAD_CTRL(MX53_PAD_PATA_DATA1__EMI_NANDF_D_1,
 291                                PAD_CTL_DSE_HIGH | PAD_CTL_PKE),
 292                NEW_PAD_CTRL(MX53_PAD_PATA_DATA2__EMI_NANDF_D_2,
 293                                PAD_CTL_DSE_HIGH | PAD_CTL_PKE),
 294                NEW_PAD_CTRL(MX53_PAD_PATA_DATA3__EMI_NANDF_D_3,
 295                                PAD_CTL_DSE_HIGH | PAD_CTL_PKE),
 296                NEW_PAD_CTRL(MX53_PAD_PATA_DATA4__EMI_NANDF_D_4,
 297                                PAD_CTL_DSE_HIGH | PAD_CTL_PKE),
 298                NEW_PAD_CTRL(MX53_PAD_PATA_DATA5__EMI_NANDF_D_5,
 299                                PAD_CTL_DSE_HIGH | PAD_CTL_PKE),
 300                NEW_PAD_CTRL(MX53_PAD_PATA_DATA6__EMI_NANDF_D_6,
 301                                PAD_CTL_DSE_HIGH | PAD_CTL_PKE),
 302                NEW_PAD_CTRL(MX53_PAD_PATA_DATA7__EMI_NANDF_D_7,
 303                                PAD_CTL_DSE_HIGH | PAD_CTL_PKE),
 304        };
 305
 306        imx_iomux_v3_setup_multiple_pads(nand_pads, ARRAY_SIZE(nand_pads));
 307}
 308
 309static void m53_set_clock(void)
 310{
 311        int ret;
 312        const uint32_t ref_clk = MXC_HCLK;
 313        const uint32_t dramclk = 400;
 314        uint32_t cpuclk;
 315
 316        imx_iomux_v3_setup_pad(NEW_PAD_CTRL(MX53_PAD_GPIO_10__GPIO4_0,
 317                                            PAD_CTL_DSE_HIGH | PAD_CTL_PKE));
 318        gpio_direction_input(IMX_GPIO_NR(4, 0));
 319
 320        /* GPIO10 selects modules' CPU speed, 1 = 1200MHz ; 0 = 800MHz */
 321        cpuclk = gpio_get_value(IMX_GPIO_NR(4, 0)) ? 1200 : 800;
 322
 323        ret = mxc_set_clock(ref_clk, cpuclk, MXC_ARM_CLK);
 324        if (ret)
 325                printf("CPU:   Switch CPU clock to %dMHz failed\n", cpuclk);
 326
 327        ret = mxc_set_clock(ref_clk, dramclk, MXC_PERIPH_CLK);
 328        if (ret) {
 329                printf("CPU:   Switch peripheral clock to %dMHz failed\n",
 330                        dramclk);
 331        }
 332
 333        ret = mxc_set_clock(ref_clk, dramclk, MXC_DDR_CLK);
 334        if (ret)
 335                printf("CPU:   Switch DDR clock to %dMHz failed\n", dramclk);
 336}
 337
 338static void m53_set_nand(void)
 339{
 340        u32 i;
 341
 342        /* NAND flash is muxed on ATA pins */
 343        setbits_le32(M4IF_BASE_ADDR + 0xc, M4IF_GENP_WEIM_MM_MASK);
 344
 345        /* Wait for Grant/Ack sequence (see EIM_CSnGCR2:MUX16_BYP_GRANT) */
 346        for (i = 0x4; i < 0x94; i += 0x18) {
 347                clrbits_le32(WEIM_BASE_ADDR + i,
 348                             WEIM_GCR2_MUX16_BYP_GRANT_MASK);
 349        }
 350
 351        mxc_set_clock(0, 33, MXC_NFC_CLK);
 352        enable_nfc_clk(1);
 353}
 354
 355int board_early_init_f(void)
 356{
 357        setup_iomux_uart();
 358        setup_iomux_fec();
 359        setup_iomux_i2c();
 360        setup_iomux_nand();
 361        setup_iomux_video();
 362
 363        m53_set_clock();
 364
 365        mxc_set_sata_internal_clock();
 366
 367        /* NAND clock @ 33MHz */
 368        m53_set_nand();
 369
 370        return 0;
 371}
 372
 373int board_init(void)
 374{
 375        gd->bd->bi_boot_params = PHYS_SDRAM_1 + 0x100;
 376
 377        return 0;
 378}
 379
 380int checkboard(void)
 381{
 382        puts("Board: DENX M53EVK\n");
 383
 384        return 0;
 385}
 386
 387/*
 388 * NAND SPL
 389 */
 390#ifdef CONFIG_SPL_BUILD
 391void spl_board_init(void)
 392{
 393        setup_iomux_nand();
 394        m53_set_clock();
 395        m53_set_nand();
 396}
 397
 398u32 spl_boot_device(void)
 399{
 400        return BOOT_DEVICE_NAND;
 401}
 402#endif
 403