diff options
Diffstat (limited to 'roms/u-boot/board/engicam/common/board.c')
| -rw-r--r-- | roms/u-boot/board/engicam/common/board.c | 198 |
1 files changed, 198 insertions, 0 deletions
diff --git a/roms/u-boot/board/engicam/common/board.c b/roms/u-boot/board/engicam/common/board.c new file mode 100644 index 000000000..df9149e0d --- /dev/null +++ b/roms/u-boot/board/engicam/common/board.c @@ -0,0 +1,198 @@ +// 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 <asm/global_data.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; +} |