1 /* SPDX-License-Identifier: GPL-2.0+ */ 2 /* 3 * Copyright (C) 2016 Freescale Semiconductor, Inc. 4 * 5 * Configuration settings for the Embedded Artists i.MX7ULP COM board. 6 */ 7 8 #ifndef __MX7ULP_COM_CONFIG_H 9 #define __MX7ULP_COM_CONFIG_H 10 11 #include <linux/sizes.h> 12 #include <asm/arch/imx-regs.h> 13 14 #define CONFIG_BOARD_POSTCLK_INIT 15 #define CONFIG_SYS_BOOTM_LEN 0x1000000 16 17 /* 18 * Detect overlap between U-Boot image and environment area in build-time 19 * 20 * CONFIG_BOARD_SIZE_LIMIT = CONFIG_ENV_OFFSET - u-boot-dtb.imx offset 21 * CONFIG_BOARD_SIZE_LIMIT = 768k - 1k = 767k = 785408 22 * 23 * Currently CONFIG_BOARD_SIZE_LIMIT does not handle expressions, so 24 * write the direct value here 25 */ 26 #define CONFIG_BOARD_SIZE_LIMIT 785408 27 #define CONFIG_MMCROOT "/dev/mmcblk0p2" 28 #define CONFIG_SYS_MMC_IMG_LOAD_PART 1 29 30 /* Using ULP WDOG for reset */ 31 #define WDOG_BASE_ADDR WDG1_RBASE 32 33 #define CONFIG_SYS_HZ_CLOCK 1000000 /* Fixed at 1MHz from TSTMR */ 34 35 /* UART */ 36 #define LPUART_BASE LPUART4_RBASE 37 38 /* Physical Memory Map */ 39 40 #define PHYS_SDRAM 0x60000000 41 #define CONFIG_SYS_SDRAM_BASE PHYS_SDRAM 42 43 #define CONFIG_EXTRA_ENV_SETTINGS \ 44 "image=zImage\0" \ 45 "console=ttyLP0\0" \ 46 "fdt_high=0xffffffff\0" \ 47 "initrd_high=0xffffffff\0" \ 48 "fdt_file=imx7ulp-com.dtb\0" \ 49 "fdt_addr=0x63000000\0" \ 50 "mmcdev="__stringify(CONFIG_SYS_MMC_ENV_DEV)"\0" \ 51 "mmcpart=" __stringify(CONFIG_SYS_MMC_IMG_LOAD_PART) "\0" \ 52 "mmcroot=" CONFIG_MMCROOT " rootwait rw\0" \ 53 "mmcargs=setenv bootargs console=${console},${baudrate} " \ 54 "root=${mmcroot}\0" \ 55 "loadimage=fatload mmc ${mmcdev}:${mmcpart} ${loadaddr} ${image}\0" \ 56 "loadfdt=fatload mmc ${mmcdev}:${mmcpart} ${fdt_addr} ${fdt_file}\0" \ 57 "mmcboot=echo Booting from mmc ...; " \ 58 "run mmcargs; " \ 59 "if run loadfdt; then " \ 60 "bootz ${loadaddr} - ${fdt_addr}; " \ 61 "fi;\0" \ 62 63 #define CONFIG_SYS_INIT_RAM_ADDR IRAM_BASE_ADDR 64 #define CONFIG_SYS_INIT_RAM_SIZE SZ_256K 65 66 #define CONFIG_SYS_INIT_SP_OFFSET \ 67 (CONFIG_SYS_INIT_RAM_SIZE - GENERATED_GBL_DATA_SIZE) 68 #define CONFIG_SYS_INIT_SP_ADDR \ 69 (CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_INIT_SP_OFFSET) 70 71 #define CONFIG_MXC_USB_PORTSC (PORT_PTS_UTMI | PORT_PTS_PTW) 72 #endif /* __CONFIG_H */ 73