Signed-off-by: Giulio Benetti giulio.benetti@benettiengineering.com --- arch/arm/dts/Makefile | 3 +- arch/arm/dts/imxrt1020-evk-u-boot.dtsi | 44 ++++ arch/arm/dts/imxrt1020-evk.dts | 198 ++++++++++++++++++ arch/arm/mach-imx/imxrt/Kconfig | 5 + board/freescale/imxrt1020-evk/Kconfig | 22 ++ board/freescale/imxrt1020-evk/MAINTAINERS | 6 + board/freescale/imxrt1020-evk/Makefile | 6 + board/freescale/imxrt1020-evk/README | 31 +++ board/freescale/imxrt1020-evk/imximage.cfg | 36 ++++ board/freescale/imxrt1020-evk/imxrt1020-evk.c | 81 +++++++ configs/imxrt1020-evk_defconfig | 67 ++++++ include/configs/imxrt1020-evk.h | 46 ++++ 12 files changed, 544 insertions(+), 1 deletion(-) create mode 100644 arch/arm/dts/imxrt1020-evk-u-boot.dtsi create mode 100644 arch/arm/dts/imxrt1020-evk.dts create mode 100644 board/freescale/imxrt1020-evk/Kconfig create mode 100644 board/freescale/imxrt1020-evk/MAINTAINERS create mode 100644 board/freescale/imxrt1020-evk/Makefile create mode 100644 board/freescale/imxrt1020-evk/README create mode 100644 board/freescale/imxrt1020-evk/imximage.cfg create mode 100644 board/freescale/imxrt1020-evk/imxrt1020-evk.c create mode 100644 configs/imxrt1020-evk_defconfig create mode 100644 include/configs/imxrt1020-evk.h
diff --git a/arch/arm/dts/Makefile b/arch/arm/dts/Makefile index be4cf029d0..1116c44cf4 100644 --- a/arch/arm/dts/Makefile +++ b/arch/arm/dts/Makefile @@ -723,7 +723,8 @@ dtb-$(CONFIG_ARCH_IMX8M) += \ imx8mq-evk.dtb \ imx8mp-evk.dtb
-dtb-$(CONFIG_ARCH_IMXRT) += imxrt1050-evk.dtb +dtb-$(CONFIG_ARCH_IMXRT) += imxrt1050-evk.dtb \ + imxrt1020-evk.dtb
dtb-$(CONFIG_RCAR_GEN2) += \ r8a7790-lager-u-boot.dtb \ diff --git a/arch/arm/dts/imxrt1020-evk-u-boot.dtsi b/arch/arm/dts/imxrt1020-evk-u-boot.dtsi new file mode 100644 index 0000000000..d32c98de9c --- /dev/null +++ b/arch/arm/dts/imxrt1020-evk-u-boot.dtsi @@ -0,0 +1,44 @@ +// SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause) +/* + * Copyright (C) 2020 + * Author(s): Giulio Benetti giulio.benetti@benettiengineering.com + */ + +/ { + chosen { + u-boot,dm-spl; + }; +}; + +&lpuart1 { /* console */ + u-boot,dm-spl; +}; + +&semc { + bank1: bank@0 { + u-boot,dm-spl; + }; +}; + +&iomuxc { + u-boot,dm-spl; + + imxrt1020-evk { + u-boot,dm-spl; + pinctrl_lpuart1: lpuart1grp { + u-boot,dm-spl; + }; + + pinctrl_semc: semcgrp { + u-boot,dm-spl; + }; + + pinctrl_usdhc0: usdhc0grp { + u-boot,dm-spl; + }; + }; +}; + +&usdhc1 { + u-boot,dm-spl; +}; diff --git a/arch/arm/dts/imxrt1020-evk.dts b/arch/arm/dts/imxrt1020-evk.dts new file mode 100644 index 0000000000..ece13601bd --- /dev/null +++ b/arch/arm/dts/imxrt1020-evk.dts @@ -0,0 +1,198 @@ +// SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause) +/* + * Copyright (C) 2020 + * Author(s): Giulio Benetti giulio.benetti@benettiengineering.com + */ + +/dts-v1/; +#include "imxrt1020.dtsi" +#include "imxrt1020-evk-u-boot.dtsi" +#include <dt-bindings/pinctrl/pins-imxrt1020.h> + +/ { + model = "NXP IMXRT1020-evk board"; + compatible = "fsl,imxrt1020-evk", "fsl,imxrt1020"; + + chosen { + bootargs = "root=/dev/ram"; + stdout-path = "serial0:115200n8"; + }; + + memory { + reg = <0x80000000 0x2000000>; + }; +}; + +&lpuart1 { /* console */ + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_lpuart1>; + status = "okay"; +}; + +&semc { + /* + * Memory configuration from sdram datasheet IS42S16160J-6TLI + */ + fsl,sdram-mux = /bits/ 8 <MUX_A8_SDRAM_A8 + MUX_CSX0_SDRAM_CS1 + 0 + 0 + 0 + 0>; + fsl,sdram-control = /bits/ 8 <MEM_WIDTH_16BITS + BL_8 + COL_9BITS + CL_3>; + fsl,sdram-timing = /bits/ 8 <0x2 + 0x2 + 0x9 + 0x1 + 0x5 + 0x6 + + 0x20 + 0x09 + 0x01 + 0x00 + + 0x04 + 0x0A + 0x21 + 0x50>; + + bank1: bank@0 { + fsl,base-address = <0x80000000>; + fsl,memory-size = <MEM_SIZE_32M>; + }; +}; + +&iomuxc { + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_lpuart1>; + + imxrt1020-evk { + pinctrl_lpuart1: lpuart1grp { + fsl,pins = < + MXRT1020_IOMUXC_GPIO_AD_B0_06_LPUART1_TX + 0xf1 + MXRT1020_IOMUXC_GPIO_AD_B0_07_LPUART1_RX + 0xf1 + >; + }; + + pinctrl_semc: semcgrp { + fsl,pins = < + MXRT1020_IOMUXC_GPIO_EMC_00_SEMC_DA00 + 0xf1 /* SEMC_D0 */ + MXRT1020_IOMUXC_GPIO_EMC_01_SEMC_DA01 + 0xf1 /* SEMC_D1 */ + MXRT1020_IOMUXC_GPIO_EMC_02_SEMC_DA02 + 0xf1 /* SEMC_D2 */ + MXRT1020_IOMUXC_GPIO_EMC_03_SEMC_DA03 + 0xf1 /* SEMC_D3 */ + MXRT1020_IOMUXC_GPIO_EMC_04_SEMC_DA04 + 0xf1 /* SEMC_D4 */ + MXRT1020_IOMUXC_GPIO_EMC_05_SEMC_DA05 + 0xf1 /* SEMC_D5 */ + MXRT1020_IOMUXC_GPIO_EMC_06_SEMC_DA06 + 0xf1 /* SEMC_D6 */ + MXRT1020_IOMUXC_GPIO_EMC_07_SEMC_DA07 + 0xf1 /* SEMC_D7 */ + MXRT1020_IOMUXC_GPIO_EMC_08_SEMC_DM00 + 0xf1 /* SEMC_DM0 */ + MXRT1020_IOMUXC_GPIO_EMC_09_SEMC_ADDR00 + 0xf1 /* SEMC_A0 */ + MXRT1020_IOMUXC_GPIO_EMC_10_SEMC_CAS + 0xf1 /* SEMC_CAS */ + MXRT1020_IOMUXC_GPIO_EMC_11_SEMC_RAS + 0xf1 /* SEMC_RAS */ + MXRT1020_IOMUXC_GPIO_EMC_12_SEMC_CS0 + 0xf1 /* SEMC_CS0 */ + MXRT1020_IOMUXC_GPIO_EMC_13_SEMC_BA0 + 0xf1 /* SEMC_BA0 */ + MXRT1020_IOMUXC_GPIO_EMC_14_SEMC_BA1 + 0xf1 /* SEMC_BA1 */ + MXRT1020_IOMUXC_GPIO_EMC_15_SEMC_ADDR10 + 0xf1 /* SEMC_A10 */ + MXRT1020_IOMUXC_GPIO_EMC_16_SEMC_ADDR00 + 0xf1 /* SEMC_A0 */ + MXRT1020_IOMUXC_GPIO_EMC_17_SEMC_ADDR01 + 0xf1 /* SEMC_A1 */ + MXRT1020_IOMUXC_GPIO_EMC_18_SEMC_ADDR02 + 0xf1 /* SEMC_A2 */ + MXRT1020_IOMUXC_GPIO_EMC_19_SEMC_ADDR03 + 0xf1 /* SEMC_A3 */ + MXRT1020_IOMUXC_GPIO_EMC_20_SEMC_ADDR04 + 0xf1 /* SEMC_A4 */ + MXRT1020_IOMUXC_GPIO_EMC_21_SEMC_ADDR05 + 0xf1 /* SEMC_A5 */ + MXRT1020_IOMUXC_GPIO_EMC_22_SEMC_ADDR06 + 0xf1 /* SEMC_A6 */ + MXRT1020_IOMUXC_GPIO_EMC_23_SEMC_ADDR07 + 0xf1 /* SEMC_A7 */ + MXRT1020_IOMUXC_GPIO_EMC_24_SEMC_ADDR08 + 0xf1 /* SEMC_A8 */ + MXRT1020_IOMUXC_GPIO_EMC_25_SEMC_ADDR09 + 0xf1 /* SEMC_A9 */ + MXRT1020_IOMUXC_GPIO_EMC_26_SEMC_ADDR11 + 0xf1 /* SEMC_A11 */ + MXRT1020_IOMUXC_GPIO_EMC_27_SEMC_ADDR12 + 0xf1 /* SEMC_A12 */ + MXRT1020_IOMUXC_GPIO_EMC_28_SEMC_DQS + (IMX_PAD_SION | 0xf1) /* SEMC_DQS */ + MXRT1020_IOMUXC_GPIO_EMC_29_SEMC_CKE + 0xf1 /* SEMC_CKE */ + MXRT1020_IOMUXC_GPIO_EMC_30_SEMC_CLK + 0xf1 /* SEMC_CLK */ + MXRT1020_IOMUXC_GPIO_EMC_31_SEMC_DM01 + 0xf1 /* SEMC_DM01 */ + MXRT1020_IOMUXC_GPIO_EMC_32_SEMC_DATA08 + 0xf1 /* SEMC_D8 */ + MXRT1020_IOMUXC_GPIO_EMC_33_SEMC_DATA09 + 0xf1 /* SEMC_D9 */ + MXRT1020_IOMUXC_GPIO_EMC_34_SEMC_DATA10 + 0xf1 /* SEMC_D10 */ + MXRT1020_IOMUXC_GPIO_EMC_35_SEMC_DATA11 + 0xf1 /* SEMC_D11 */ + MXRT1020_IOMUXC_GPIO_EMC_36_SEMC_DATA12 + 0xf1 /* SEMC_D12 */ + MXRT1020_IOMUXC_GPIO_EMC_37_SEMC_DATA13 + 0xf1 /* SEMC_D13 */ + MXRT1020_IOMUXC_GPIO_EMC_38_SEMC_DATA14 + 0xf1 /* SEMC_D14 */ + MXRT1020_IOMUXC_GPIO_EMC_39_SEMC_DATA15 + 0xf1 /* SEMC_D15 */ + >; + }; + + pinctrl_usdhc0: usdhc0grp { + fsl,pins = < + MXRT1020_IOMUXC_GPIO_SD_B0_06_USDHC1_CD_B + 0x1B000 + MXRT1020_IOMUXC_GPIO_SD_B0_02_USDHC1_CMD + 0x17061 + MXRT1020_IOMUXC_GPIO_SD_B0_03_USDHC1_CLK + 0x17061 + MXRT1020_IOMUXC_GPIO_SD_B0_01_USDHC1_DATA3 + 0x17061 + MXRT1020_IOMUXC_GPIO_SD_B0_00_USDHC1_DATA2 + 0x17061 + MXRT1020_IOMUXC_GPIO_SD_B0_05_USDHC1_DATA1 + 0x17061 + MXRT1020_IOMUXC_GPIO_SD_B0_04_USDHC1_DATA0 + 0x17061 + >; + }; + }; +}; + +&usdhc1 { + pinctrl-names = "default", "state_100mhz", "state_200mhz", "sleep"; + pinctrl-0 = <&pinctrl_usdhc0>; + pinctrl-1 = <&pinctrl_usdhc0>; + pinctrl-2 = <&pinctrl_usdhc0>; + pinctrl-3 = <&pinctrl_usdhc0>; + status = "okay"; + + cd-gpios = <&gpio3 19 GPIO_ACTIVE_LOW>; +}; diff --git a/arch/arm/mach-imx/imxrt/Kconfig b/arch/arm/mach-imx/imxrt/Kconfig index f28d52d3b7..d275fdf72e 100644 --- a/arch/arm/mach-imx/imxrt/Kconfig +++ b/arch/arm/mach-imx/imxrt/Kconfig @@ -18,12 +18,17 @@ choice prompt "NXP i.MXRT board select" optional
+config TARGET_IMXRT1020_EVK + bool "Support imxrt1020 EVK board" + select IMXRT1020 + config TARGET_IMXRT1050_EVK bool "Support imxrt1050 EVK board" select IMXRT1050
endchoice
+source "board/freescale/imxrt1020-evk/Kconfig" source "board/freescale/imxrt1050-evk/Kconfig"
endif diff --git a/board/freescale/imxrt1020-evk/Kconfig b/board/freescale/imxrt1020-evk/Kconfig new file mode 100644 index 0000000000..d00cbff094 --- /dev/null +++ b/board/freescale/imxrt1020-evk/Kconfig @@ -0,0 +1,22 @@ +if TARGET_IMXRT1020_EVK + +config SYS_BOARD + string + default "imxrt1020-evk" + +config SYS_VENDOR + string + default "freescale" + +config SYS_SOC + string + default "imxrt1020" + +config SYS_CONFIG_NAME + string + default "imxrt1020-evk" + +config IMX_CONFIG + default "board/freescale/imxrt1020-evk/imximage.cfg" + +endif diff --git a/board/freescale/imxrt1020-evk/MAINTAINERS b/board/freescale/imxrt1020-evk/MAINTAINERS new file mode 100644 index 0000000000..05f017b2ba --- /dev/null +++ b/board/freescale/imxrt1020-evk/MAINTAINERS @@ -0,0 +1,6 @@ +IMXRT1020 EVALUATION KIT +M: Giulio Benetti giulio.benetti@benettiengineering.com +S: Maintained +F: board/freescale/imxrt1020-evk +F: include/configs/imxrt1020-evk.h +F: configs/imxrt1020-evk_defconfig diff --git a/board/freescale/imxrt1020-evk/Makefile b/board/freescale/imxrt1020-evk/Makefile new file mode 100644 index 0000000000..807dc7c35e --- /dev/null +++ b/board/freescale/imxrt1020-evk/Makefile @@ -0,0 +1,6 @@ +# SPDX-License-Identifier: GPL-2.0+ +# +# Copyright (C) 2020 +# Author(s): Giulio Benetti giulio.benetti@benettiengineering.com + +obj-y := imxrt1020-evk.o diff --git a/board/freescale/imxrt1020-evk/README b/board/freescale/imxrt1020-evk/README new file mode 100644 index 0000000000..3da72fdad2 --- /dev/null +++ b/board/freescale/imxrt1020-evk/README @@ -0,0 +1,31 @@ +How to use U-Boot on NXP i.MXRT1020 EVK +----------------------------------------------- + +- Build U-Boot for i.MXRT1020 EVK: + +$ make mrproper +$ make imxrt1020-evk_defconfig +$ make + +This will generate the SPL image called SPL and the u-boot.img. + +- Flash the SPL image into the micro SD card: + +sudo dd if=SPL of=/dev/mmcblk0 bs=1k seek=1; sync + +- Flash the u-boot.img image into the micro SD card: + +sudo dd if=u-boot.img of=/dev/sdb bs=1k seek=128; sync + +- Jumper settings: + +SW8: 0 1 1 0 + +where 0 means bottom position and 1 means top position (from the +switch label numbers reference). + +- Connect the USB cable between the EVK and the PC for the console. +(The USB console connector is the one close the ethernet connector) + +- Insert the micro SD card in the board, power it up and U-Boot messages should +come up. diff --git a/board/freescale/imxrt1020-evk/imximage.cfg b/board/freescale/imxrt1020-evk/imximage.cfg new file mode 100644 index 0000000000..9bcc2c1590 --- /dev/null +++ b/board/freescale/imxrt1020-evk/imximage.cfg @@ -0,0 +1,36 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ +/* + * Copyright (C) 2020 + * Author(s): Giulio Benetti giulio.benetti@benettiengineering.com + */ + +#define __ASSEMBLY__ +#include <config.h> + +/* image version */ + +IMAGE_VERSION 2 + +/* + * Boot Device : one of + * spi/sd/nand/onenand, qspi/nor + */ + +BOOT_FROM sd + +/* + * Device Configuration Data (DCD) + * + * Each entry must have the format: + * Addr-type Address Value + * + * where: + * Addr-type register length (1,2 or 4 bytes) + * Address absolute address of the register + * value value to be stored in the register + */ + +/* Set all FlexRAM as OCRAM(01b) */ +DATA 4 0x400AC044 0x00005555 +/* Use FLEXRAM_BANK_CFG to config FlexRAM */ +SET_BIT 4 0x400AC040 0x4 diff --git a/board/freescale/imxrt1020-evk/imxrt1020-evk.c b/board/freescale/imxrt1020-evk/imxrt1020-evk.c new file mode 100644 index 0000000000..06ad524d5d --- /dev/null +++ b/board/freescale/imxrt1020-evk/imxrt1020-evk.c @@ -0,0 +1,81 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Copyright (C) 2020 + * Author(s): Giulio Benetti giulio.benetti@benettiengineering.com + */ + +#include <common.h> +#include <dm.h> +#include <ram.h> +#include <spl.h> +#include <asm/io.h> +#include <asm/armv7m.h> + +DECLARE_GLOBAL_DATA_PTR; + +int dram_init(void) +{ +#ifndef CONFIG_SUPPORT_SPL + int rv; + struct udevice *dev; + + rv = uclass_get_device(UCLASS_RAM, 0, &dev); + if (rv) { + debug("DRAM init failed: %d\n", rv); + return rv; + } + +#endif + return fdtdec_setup_mem_size_base(); +} + +int dram_init_banksize(void) +{ + return fdtdec_setup_memory_banksize(); +} + +#ifdef CONFIG_SPL_BUILD +#ifdef CONFIG_SPL_OS_BOOT +int spl_start_uboot(void) +{ + debug("SPL: booting kernel\n"); + /* break into full u-boot on 'c' */ + return serial_tstc() && serial_getc() == 'c'; +} +#endif + +int spl_dram_init(void) +{ + struct udevice *dev; + int rv; + + rv = uclass_get_device(UCLASS_RAM, 0, &dev); + if (rv) + debug("DRAM init failed: %d\n", rv); + return rv; +} + +void spl_board_init(void) +{ + spl_dram_init(); + preloader_console_init(); + arch_cpu_init(); /* to configure mpu for sdram rw permissions */ +} + +u32 spl_boot_device(void) +{ + return BOOT_DEVICE_MMC1; +} +#endif + +u32 get_board_rev(void) +{ + return 0; +} + +int board_init(void) +{ + gd->bd->bi_boot_params = gd->bd->bi_dram[0].start + 0x100; + + return 0; +} diff --git a/configs/imxrt1020-evk_defconfig b/configs/imxrt1020-evk_defconfig new file mode 100644 index 0000000000..2f35df1896 --- /dev/null +++ b/configs/imxrt1020-evk_defconfig @@ -0,0 +1,67 @@ +CONFIG_ARM=y +CONFIG_ARCH_IMXRT=y +CONFIG_SYS_TEXT_BASE=0x80002000 +CONFIG_SPL_GPIO_SUPPORT=y +CONFIG_SPL_LIBCOMMON_SUPPORT=y +CONFIG_SPL_LIBGENERIC_SUPPORT=y +CONFIG_SYS_MALLOC_F_LEN=0x8000 +CONFIG_ENV_OFFSET=0x80000 +CONFIG_DM_GPIO=y +CONFIG_TARGET_IMXRT1020_EVK=y +CONFIG_SPL_MMC_SUPPORT=y +CONFIG_SPL_SERIAL_SUPPORT=y +CONFIG_NR_DRAM_BANKS=1 +CONFIG_SPL_SIZE_LIMIT=131072 +CONFIG_SPL=y +CONFIG_SPL_TEXT_BASE=0x20209000 +CONFIG_DISTRO_DEFAULTS=y +CONFIG_SD_BOOT=y +# CONFIG_USE_BOOTCOMMAND is not set +# CONFIG_DISPLAY_CPUINFO is not set +CONFIG_SPL_BOARD_INIT=y +# CONFIG_SPL_RAW_IMAGE_SUPPORT is not set +CONFIG_SPL_SYS_MALLOC_SIMPLE=y +CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_USE_SECTOR=y +CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR=0x100 +# CONFIG_SPL_CRC32_SUPPORT is not set +# CONFIG_SPL_DM_GPIO is not set +# CONFIG_BOOTM_NETBSD is not set +# CONFIG_BOOTM_PLAN9 is not set +# CONFIG_BOOTM_RTEMS is not set +# CONFIG_BOOTM_VXWORKS is not set +# CONFIG_CMD_MII is not set +# CONFIG_DOS_PARTITION is not set +# CONFIG_ISO_PARTITION is not set +# CONFIG_EFI_PARTITION is not set +CONFIG_OF_CONTROL=y +CONFIG_SPL_OF_CONTROL=y +CONFIG_DEFAULT_DEVICE_TREE="imxrt1020-evk" +CONFIG_ENV_IS_NOWHERE=y +CONFIG_ENV_IS_IN_MMC=y +CONFIG_SYS_RELOC_GD_ENV_ADDR=y +CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG=y +CONFIG_TFTP_BLOCKSIZE=512 +CONFIG_SPL_DM=y +CONFIG_SPL_DM_SEQ_ALIAS=y +# CONFIG_OF_TRANSLATE is not set +CONFIG_SPL_CLK_COMPOSITE_CCF=y +CONFIG_CLK_COMPOSITE_CCF=y +CONFIG_SPL_CLK_IMXRT1020=y +CONFIG_CLK_IMXRT1020=y +CONFIG_MXC_GPIO=y +# CONFIG_INPUT is not set +CONFIG_DM_MMC=y +CONFIG_FSL_USDHC=y +CONFIG_DM_ETH=y +CONFIG_PINCTRL=y +CONFIG_SPL_PINCTRL=y +CONFIG_PINCTRL_IMXRT=y +CONFIG_RAM=y +CONFIG_SPL_RAM=y +CONFIG_IMXRT_SDRAM=y +CONFIG_FSL_LPUART=y +CONFIG_TIMER=y +CONFIG_SPL_TIMER=y +CONFIG_SHA1=y +CONFIG_SHA256=y +CONFIG_HEXDUMP=y diff --git a/include/configs/imxrt1020-evk.h b/include/configs/imxrt1020-evk.h new file mode 100644 index 0000000000..8e54565f1a --- /dev/null +++ b/include/configs/imxrt1020-evk.h @@ -0,0 +1,46 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ +/* + * Copyright (C) 2020 + * Author(s): Giulio Benetti giulio.benetti@benettiengineering.com + */ + +#ifndef __IMXRT1020_EVK_H +#define __IMXRT1020_EVK_H + +#include <asm/arch/imx-regs.h> + +#define CONFIG_SYS_INIT_SP_ADDR 0x20240000 + +#ifdef CONFIG_SUPPORT_SPL +#define CONFIG_SYS_LOAD_ADDR 0x20209000 +#else +#define CONFIG_SYS_LOAD_ADDR 0x80000000 +#define CONFIG_LOADADDR 0x80000000 +#endif + +#define CONFIG_SYS_FSL_ERRATUM_ESDHC135 1 +#define ESDHCI_QUIRK_BROKEN_TIMEOUT_VALUE 1 + +#define PHYS_SDRAM 0x80000000 +#define PHYS_SDRAM_SIZE (32 * 1024 * 1024) + +#define DMAMEM_SZ_ALL (1 * 1024 * 1024) +#define DMAMEM_BASE (PHYS_SDRAM + PHYS_SDRAM_SIZE - \ + DMAMEM_SZ_ALL) + +#define CONFIG_SYS_MMC_ENV_DEV 0 /* USDHC1 */ + +/* + * Configuration of the external SDRAM memory + */ +#define CONFIG_SYS_MALLOC_LEN (1 * 1024 * 1024) + +/* For SPL */ +#ifdef CONFIG_SUPPORT_SPL +#define CONFIG_SPL_STACK CONFIG_SYS_INIT_SP_ADDR +#define CONFIG_SYS_SPL_LEN 0x00008000 +#define CONFIG_SYS_UBOOT_START 0x800023FD +#endif +/* For SPL ends */ + +#endif /* __IMXRT1020_EVK_H */