GK SDK 源码库: XMIPCLinuxV100R005C00SPC030 (kernel/tools/open_source excluded)
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if TARGET_MX6UL_ENGICAM
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config SYS_BOARD
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default "imx6ul"
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config SYS_VENDOR
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default "engicam"
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config SYS_CONFIG_NAME
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default "imx6-engicam"
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endif
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MX6UL_ENGICAM BOARD
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M: Jagan Teki <jagan@amarulasolutions.com>
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S: Maintained
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F: board/engicam/imx6ul
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F: include/configs/imx6-engicam.h
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F: configs/imx6ul_geam_mmc_defconfig
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F: configs/imx6ul_geam_nand_defconfig
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F: configs/imx6ul_isiot_emmc_defconfig
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F: configs/imx6ul_isiot_mmc_defconfig
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F: configs/imx6ul_isiot_nand_defconfig
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F: arch/arm/dts/imx6ul.dtsi
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F: arch/arm/dts/imx6ul-u-boot.dtsi
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F: arch/arm/dts/imx6ul-geam-kit.dts
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F: arch/arm/dts/imx6ul-geam-kit-u-boot.dtsi
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F: arch/arm/dts/imx6ul-isiot.dtsi
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F: arch/arm/dts/imx6ul-isiot-u-boot.dtsi
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F: arch/arm/dts/imx6ul-isiot-emmc.dts
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F: arch/arm/dts/imx6ul-isiot-emmc-u-boot.dtsi
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F: arch/arm/dts/imx6ul-isiot-nand.dts
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# SPDX-License-Identifier: GPL-2.0+
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# Copyright (C) 2016 Amarula Solutions B.V.
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obj-y := imx6ul.o
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Hsow to use U-Boot on Engicam GEAM6UL and Is.IoT MX6UL Starter Kit:
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-------------------------------------------------------------------
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$ make mrproper
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- Configure U-Boot for Engicam GEAM6UL:
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$ make imx6ul_geam_mmc_defconfig
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- Configure U-Boot for Engicam Is.IoT MX6UL:
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$ make imx6ul_isiot_mmc_defconfig
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- Build U-Boot
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$ make
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This will generate the SPL image called SPL and the u-boot-dtb.img.
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- Flash the SPL image into the micro SD card:
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sudo dd if=SPL of=/dev/mmcblk0 bs=1k seek=1; sync
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- Flash the u-boot-dtb.img image into the micro SD card:
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sudo dd if=u-boot-dtb.img of=/dev/mmcblk0 bs=1k seek=69; sync
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- Jumper settings:
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MMC Boot: JM3 Closed
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- Connect the Serial cable between the Starter Kit and the PC for the console.
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(J28 is the Linux Serial console connector)
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- Insert the micro SD card in the board, power it up and U-Boot messages should
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come up.
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// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright (C) 2016 Amarula Solutions B.V.
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* Copyright (C) 2016 Engicam S.r.l.
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* Author: Jagan Teki <jagan@amarulasolutions.com>
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*/
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#include <common.h>
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#include <mmc.h>
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#include <asm/io.h>
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#include <asm/gpio.h>
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#include <linux/sizes.h>
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#include <asm/arch/clock.h>
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#include <asm/arch/crm_regs.h>
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#include <asm/arch/iomux.h>
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#include <asm/arch/mx6-pins.h>
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#include <asm/arch/sys_proto.h>
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#include <asm/mach-imx/iomux-v3.h>
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#include "../common/board.h"
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#ifdef CONFIG_NAND_MXS
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#define GPMI_PAD_CTRL0 (PAD_CTL_PKE | PAD_CTL_PUE | PAD_CTL_PUS_100K_UP)
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#define GPMI_PAD_CTRL1 (PAD_CTL_DSE_40ohm | PAD_CTL_SPEED_MED | \
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PAD_CTL_SRE_FAST)
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#define GPMI_PAD_CTRL2 (GPMI_PAD_CTRL0 | GPMI_PAD_CTRL1)
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static iomux_v3_cfg_t const nand_pads[] = {
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IOMUX_PADS(PAD_NAND_DATA00__RAWNAND_DATA00 | MUX_PAD_CTRL(GPMI_PAD_CTRL2)),
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IOMUX_PADS(PAD_NAND_DATA01__RAWNAND_DATA01 | MUX_PAD_CTRL(GPMI_PAD_CTRL2)),
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IOMUX_PADS(PAD_NAND_DATA02__RAWNAND_DATA02 | MUX_PAD_CTRL(GPMI_PAD_CTRL2)),
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IOMUX_PADS(PAD_NAND_DATA03__RAWNAND_DATA03 | MUX_PAD_CTRL(GPMI_PAD_CTRL2)),
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IOMUX_PADS(PAD_NAND_DATA04__RAWNAND_DATA04 | MUX_PAD_CTRL(GPMI_PAD_CTRL2)),
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IOMUX_PADS(PAD_NAND_DATA05__RAWNAND_DATA05 | MUX_PAD_CTRL(GPMI_PAD_CTRL2)),
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IOMUX_PADS(PAD_NAND_DATA06__RAWNAND_DATA06 | MUX_PAD_CTRL(GPMI_PAD_CTRL2)),
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IOMUX_PADS(PAD_NAND_DATA07__RAWNAND_DATA07 | MUX_PAD_CTRL(GPMI_PAD_CTRL2)),
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IOMUX_PADS(PAD_NAND_CLE__RAWNAND_CLE | MUX_PAD_CTRL(GPMI_PAD_CTRL2)),
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IOMUX_PADS(PAD_NAND_ALE__RAWNAND_ALE | MUX_PAD_CTRL(GPMI_PAD_CTRL2)),
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IOMUX_PADS(PAD_NAND_CE0_B__RAWNAND_CE0_B | MUX_PAD_CTRL(GPMI_PAD_CTRL2)),
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IOMUX_PADS(PAD_NAND_RE_B__RAWNAND_RE_B | MUX_PAD_CTRL(GPMI_PAD_CTRL2)),
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IOMUX_PADS(PAD_NAND_WE_B__RAWNAND_WE_B | MUX_PAD_CTRL(GPMI_PAD_CTRL2)),
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IOMUX_PADS(PAD_NAND_WP_B__RAWNAND_WP_B | MUX_PAD_CTRL(GPMI_PAD_CTRL2)),
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IOMUX_PADS(PAD_NAND_READY_B__RAWNAND_READY_B | MUX_PAD_CTRL(GPMI_PAD_CTRL2)),
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};
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void setup_gpmi_nand(void)
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{
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struct mxc_ccm_reg *mxc_ccm = (struct mxc_ccm_reg *)CCM_BASE_ADDR;
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/* config gpmi nand iomux */
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SETUP_IOMUX_PADS(nand_pads);
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clrbits_le32(&mxc_ccm->CCGR4,
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MXC_CCM_CCGR4_RAWNAND_U_BCH_INPUT_APB_MASK |
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MXC_CCM_CCGR4_RAWNAND_U_GPMI_BCH_INPUT_BCH_MASK |
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MXC_CCM_CCGR4_RAWNAND_U_GPMI_BCH_INPUT_GPMI_IO_MASK |
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MXC_CCM_CCGR4_RAWNAND_U_GPMI_INPUT_APB_MASK |
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MXC_CCM_CCGR4_PL301_MX6QPER1_BCH_MASK);
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/*
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* config gpmi and bch clock to 100 MHz
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* bch/gpmi select PLL2 PFD2 400M
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* 100M = 400M / 4
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*/
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clrbits_le32(&mxc_ccm->cscmr1,
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MXC_CCM_CSCMR1_BCH_CLK_SEL |
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MXC_CCM_CSCMR1_GPMI_CLK_SEL);
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clrsetbits_le32(&mxc_ccm->cscdr1,
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MXC_CCM_CSCDR1_BCH_PODF_MASK |
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MXC_CCM_CSCDR1_GPMI_PODF_MASK,
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(3 << MXC_CCM_CSCDR1_BCH_PODF_OFFSET) |
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(3 << MXC_CCM_CSCDR1_GPMI_PODF_OFFSET));
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/* enable gpmi and bch clock gating */
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setbits_le32(&mxc_ccm->CCGR4,
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MXC_CCM_CCGR4_RAWNAND_U_BCH_INPUT_APB_MASK |
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MXC_CCM_CCGR4_RAWNAND_U_GPMI_BCH_INPUT_BCH_MASK |
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MXC_CCM_CCGR4_RAWNAND_U_GPMI_BCH_INPUT_GPMI_IO_MASK |
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MXC_CCM_CCGR4_RAWNAND_U_GPMI_INPUT_APB_MASK |
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MXC_CCM_CCGR4_PL301_MX6QPER1_BCH_MASK);
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/* enable apbh clock gating */
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setbits_le32(&mxc_ccm->CCGR0, MXC_CCM_CCGR0_APBHDMA_MASK);
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}
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#endif /* CONFIG_NAND_MXS */
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#ifdef CONFIG_ENV_IS_IN_MMC
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int board_mmc_get_env_dev(int devno)
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{
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/* dev 0 for SD/eSD, dev 1 for MMC/eMMC */
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return (devno == 0) ? 0 : 1;
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}
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#endif
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