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- // SPDX-License-Identifier: GPL-2.0+
- /*
- * Copyright (C) 2016 Amarula Solutions B.V.
- * Copyright (C) 2016 Engicam S.r.l.
- * Author: Jagan Teki <jagan@amarulasolutions.com>
- */
- #include <common.h>
- #include <command.h>
- #include <env.h>
- #include <hang.h>
- #include <init.h>
- #include <log.h>
- #include <mmc.h>
- #include <asm/arch/clock.h>
- #include <asm/arch/imx-regs.h>
- #include <asm/arch/sys_proto.h>
- #include <watchdog.h>
- #include "board.h"
- DECLARE_GLOBAL_DATA_PTR;
- #ifdef CONFIG_ENV_IS_IN_MMC
- static void mmc_late_init(void)
- {
- char cmd[32];
- char mmcblk[32];
- u32 dev_no = mmc_get_env_dev();
- env_set_ulong("mmcdev", dev_no);
- /* Set mmcblk env */
- sprintf(mmcblk, "/dev/mmcblk%dp2 rootwait rw", dev_no);
- env_set("mmcroot", mmcblk);
- sprintf(cmd, "mmc dev %d", dev_no);
- run_command(cmd, 0);
- }
- #endif
- enum engicam_boards {
- IMX6Q_ICORE,
- IMX6DL_ICORE,
- IMX6Q_ICORE_MIPI,
- IMX6DL_ICORE_MIPI,
- IMX6Q_ICORE_RQS,
- IMX6DL_ICORE_RQS,
- IMX6UL_GEAM,
- IMX6UL_ISIOT_EMMC,
- IMX6UL_ISIOT_NAND,
- ENGICAM_BOARDS,
- };
- static const char * const board_fdt_file[ENGICAM_BOARDS] = {
- [IMX6Q_ICORE] = "imx6q-icore.dtb",
- [IMX6DL_ICORE] = "imx6dl-icore.dtb",
- [IMX6Q_ICORE_MIPI] = "imx6q-icore-mipi.dtb",
- [IMX6DL_ICORE_MIPI] = "imx6dl-icore-mipi.dtb",
- [IMX6Q_ICORE_RQS] = "imx6q-icore-rqs.dtb",
- [IMX6DL_ICORE_RQS] = "imx6dl-icore-rqs.dtb",
- [IMX6UL_GEAM] = "imx6ul-geam.dtb",
- [IMX6UL_ISIOT_EMMC] = "imx6ul-isiot-emmc.dtb",
- [IMX6UL_ISIOT_NAND] = "imx6ul-isiot-nand.dtb",
- };
- static int setenv_fdt_file(int board_detected)
- {
- if (board_detected < 0 || board_detected >= ENGICAM_BOARDS)
- return -EINVAL;
- if (!board_fdt_file[board_detected])
- return -ENODEV;
- env_set("fdt_file", board_fdt_file[board_detected]);
- return 0;
- }
- static enum engicam_boards engicam_board_detect(void)
- {
- const char *cmp_dtb = CONFIG_DEFAULT_DEVICE_TREE;
- if (!strcmp(cmp_dtb, "imx6q-icore")) {
- if (is_mx6dq())
- return IMX6Q_ICORE;
- else if (is_mx6dl() || is_mx6solo())
- return IMX6DL_ICORE;
- } else if (!strcmp(cmp_dtb, "imx6q-icore-mipi")) {
- if (is_mx6dq())
- return IMX6Q_ICORE_MIPI;
- else if (is_mx6dl() || is_mx6solo())
- return IMX6DL_ICORE_MIPI;
- } else if (!strcmp(cmp_dtb, "imx6q-icore-rqs")) {
- if (is_mx6dq())
- return IMX6Q_ICORE_RQS;
- else if (is_mx6dl() || is_mx6solo())
- return IMX6DL_ICORE_RQS;
- } else if (!strcmp(cmp_dtb, "imx6ul-geam"))
- return IMX6UL_GEAM;
- else if (!strcmp(cmp_dtb, "imx6ul-isiot-emmc"))
- return IMX6UL_ISIOT_EMMC;
- else if (!strcmp(cmp_dtb, "imx6ul-isiot-nand"))
- return IMX6UL_ISIOT_NAND;
- return -EINVAL;
- }
- static int fixup_enet_clock(enum engicam_boards board_detected)
- {
- struct iomuxc *iomuxc_regs = (struct iomuxc *)IOMUXC_BASE_ADDR;
- int clk_internal = 0;
- switch (board_detected) {
- case IMX6Q_ICORE_MIPI:
- case IMX6DL_ICORE_MIPI:
- clk_internal = 1;
- break;
- default:
- break;
- }
- /* set gpr1[21] to select anatop clock */
- debug("fixup_enet_clock %d\n", clk_internal);
- clrsetbits_le32(&iomuxc_regs->gpr[1], 0x1 << 21, clk_internal << 21);
- if (!clk_internal) {
- /* clock is external */
- return 0;
- }
- return enable_fec_anatop_clock(0, ENET_50MHZ);
- }
- int board_late_init(void)
- {
- enum engicam_boards board_detected = IMX6Q_ICORE;
- switch ((imx6_src_get_boot_mode() & IMX6_BMODE_MASK) >>
- IMX6_BMODE_SHIFT) {
- case IMX6_BMODE_SD:
- case IMX6_BMODE_ESD:
- case IMX6_BMODE_MMC:
- case IMX6_BMODE_EMMC:
- #ifdef CONFIG_ENV_IS_IN_MMC
- mmc_late_init();
- #endif
- env_set("modeboot", "mmcboot");
- break;
- case IMX6_BMODE_NAND_MIN ... IMX6_BMODE_NAND_MAX:
- env_set("modeboot", "nandboot");
- break;
- default:
- env_set("modeboot", "");
- break;
- }
- if (is_mx6ul())
- env_set("console", "ttymxc0");
- else
- env_set("console", "ttymxc3");
- board_detected = engicam_board_detect();
- if (board_detected < 0)
- hang();
- fixup_enet_clock(board_detected);
- setenv_fdt_file(board_detected);
- #ifdef CONFIG_HW_WATCHDOG
- hw_watchdog_init();
- #endif
- return 0;
- }
- int board_init(void)
- {
- /* Address of boot parameters */
- gd->bd->bi_boot_params = PHYS_SDRAM + 0x100;
- #ifdef CONFIG_NAND_MXS
- setup_gpmi_nand();
- #endif
- #ifdef CONFIG_VIDEO_IPUV3
- setup_display();
- #endif
- return 0;
- }
- int dram_init(void)
- {
- gd->ram_size = imx_ddr_size();
- return 0;
- }
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