编译NUC972的uboot
1.下载uboot源码
2.解压源码
tar -zxvf uboot(2020-2-19).tar.gz
3.配置文件
NUC970 配置文件位于 include/configs/nuc970_evb.h
将其写改为
#ifndef __CONFIG_H
#define __CONFIG_H
#define CONFIG_SYS_LOAD_ADDR 0x8000
#define CONFIG_EXT_CLK 12000000 /* 12 MHz crystal */
#define CONFIG_TMR_DIV 120 /* timer prescaler */
#define CONFIG_SYS_HZ 1000
#define CONFIG_SYS_MEMTEST_START 0xA00000
#define CONFIG_SYS_MEMTEST_END 0xB00000
#define CONFIG_ARCH_CPU_INIT
#undef CONFIG_USE_IRQ
#define CONFIG_CMDLINE_TAG 1 /* enable passing of ATAGs */
#define CONFIG_SETUP_MEMORY_TAGS 1
#define CONFIG_INITRD_TAG 1
#define CONFIG_CMD_TIMER
//#define CONFIG_NUC970_HW_CHECKSUM
//#define CONFIG_SYS_USE_SPIFLASH
#define CONFIG_SYS_USE_NANDFLASH
#define CONFIG_SYS_NO_FLASH // that is, no *NOR* flash
#define CONFIG_ENV_IS_IN_NAND
//#define CONFIG_ENV_IS_IN_SPI_FLASH
//#define CONFIG_ENV_IS_IN_MMC
#define CONFIG_BOARD_EARLY_INIT_F
#define CONFIG_BOARD_LATE_INIT
#define CONFIG_NUC970_WATCHDOG
#define CONFIG_HW_WATCHDOG
#define CONFIG_DISPLAY_CPUINFO
#define CONFIG_BOOTDELAY 3
#define CONFIG_SYS_SDRAM_BASE 0
#define CONFIG_NR_DRAM_BANKS 2 // there are 2 sdram banks for nuc970
#define CONFIG_SYS_INIT_SP_ADDR 0xBC008000
#define CONFIG_BAUDRATE 115200
#define CONFIG_SYS_BAUDRATE_TABLE {115200, 57600, 38400}
#define CONFIG_NUC970_EMAC0
//#define CONFIG_NUC970_EMAC1
#define CONFIG_CMD_NET
#define CONFIG_NUC970_ETH
#define CONFIG_NUC970_PHY_ADDR 1
#define CONFIG_ETHADDR 00:00:00:11:66:88
#define CONFIG_SYS_RX_ETH_BUFFER 16 // default is 4, set to 16 here.
#define CONFIG_NUC970_CONSOLE
//#undef CONFIG_SYS_ICACHE_OFF
//#undef CONFIG_SYS_DCACHE_OFF
//#define CONFIG_SYS_ICACHE_OFF
#define CONFIG_SYS_DCACHE_OFF
/*
* BOOTP options
*/
#define CONFIG_BOOTP_BOOTFILESIZE 1
#define CONFIG_BOOTP_BOOTPATH 1
#define CONFIG_BOOTP_GATEWAY 1
#define CONFIG_BOOTP_HOSTNAME 1
#define CONFIG_BOOTP_SERVERIP /* tftp serverip not overruled by dhcp server */
/*
* Command line configuration.
*/
#include <config_cmd_default.h>
#undef CONFIG_CMD_LOADS
#undef CONFIG_CMD_SOURCE
#define CONFIG_CMD_PING 1
#define CONFIG_CMD_DHCP 1
#define CONFIG_CMD_JFFS2 1
#ifdef CONFIG_SYS_USE_SPIFLASH
#undef CONFIG_CMD_IMLS //====================> SPI only
#undef CONFIG_CMD_JFFS2
#endif
#ifdef CONFIG_SYS_USE_NANDFLASH
#define CONFIG_NAND_NUC970
#define CONFIG_CMD_NAND 1
#define CONFIG_CMD_UBI 1
#define CONFIG_CMD_UBIFS 1
#define CONFIG_CMD_MTDPARTS 1
#define CONFIG_MTD_DEVICE 1
#define CONFIG_MTD_PARTITIONS 1
#define CONFIG_RBTREE 1
#define CONFIG_LZO 1
#define MTDIDS_DEFAULT "nand0=nand0"
#define MTDPARTS_DEFAULT "mtdparts=nand0:0x200000@0x0(u-boot),0x1400000@0x200000(kernel),-(user)"
#define MTD_ACTIVE_PART "nand0,2"
//#define CONFIG_CMD_NAND_YAFFS2 1
//#define CONFIG_YAFFS2 1
#define CONFIG_SYS_MAX_NAND_DEVICE 1
#define CONFIG_SYS_NAND_BASE 0xB000D000
#define CONFIG_SYS_NAND_ECCBYTES 12
#ifdef CONFIG_ENV_IS_IN_NAND
#define CONFIG_ENV_OFFSET 0x80000
#define CONFIG_ENV_SIZE 0x10000
#define CONFIG_ENV_SECT_SIZE 0x20000
#define CONFIG_ENV_RANGE (4 * CONFIG_ENV_SECT_SIZE) /* Env range : 0x80000 ~ 0x100000 */
#define CONFIG_ENV_OVERWRITE
#endif
#endif
#define CONFIG_SYS_NAND_U_BOOT_OFFS 0x100000 /* Offset to RAM U-Boot image */
/* total memory available to uboot */
#define CONFIG_SYS_UBOOT_SIZE (1024 * 1024)
#ifdef CONFIG_NAND_SPL
/* base address for uboot */
#define CONFIG_SYS_PHY_UBOOT_BASE (CONFIG_SYS_SDRAM_BASE + 0xE00000)
#define CONFIG_SYS_NAND_U_BOOT_DST CONFIG_SYS_PHY_UBOOT_BASE /* NUB load-addr */
#define CONFIG_SYS_NAND_U_BOOT_START CONFIG_SYS_NAND_U_BOOT_DST /* NUB start-addr */
#define CONFIG_SYS_NAND_U_BOOT_SIZE (500 * 1024) /* Size of RAM U-Boot image */
/* NAND chip page size */
#define CONFIG_SYS_NAND_PAGE_SIZE 2048
/* NAND chip block size */
#define CONFIG_SYS_NAND_BLOCK_SIZE (128 * 1024)
/* NAND chip page per block count */
#define CONFIG_SYS_NAND_PAGE_COUNT 64
/* Location of the bad-block label */
#define CONFIG_SYS_NAND_BAD_BLOCK_POS 0
/* Size of the block protected by one OOB (Spare Area in Samsung terminology) */
#define CONFIG_SYS_NAND_ECCSIZE CONFIG_SYS_NAND_PAGE_SIZE
/* Number of ECC-blocks per NAND page */
#define CONFIG_SYS_NAND_ECCSTEPS (CONFIG_SYS_NAND_PAGE_SIZE / CONFIG_SYS_NAND_ECCSIZE)
/* Size of a single OOB region */
#define CONFIG_SYS_NAND_OOBSIZE 64
/* Number of ECC bytes per page */
#define CONFIG_SYS_NAND_ECCTOTAL (CONFIG_SYS_NAND_ECCBYTES * CONFIG_SYS_NAND_ECCSTEPS)
/* ECC byte positions */
#define CONFIG_SYS_NAND_ECCPOS {40, 41, 42, 43, 44, 45, 46, 47, \
48, 49, 50, 51, 52, 53, 54, 55, \
56, 57, 58, 59, 60, 61, 62, 63}
#endif //CONFIG_NAND_SPL
/* SPI flash */
#ifdef CONFIG_SYS_USE_SPIFLASH
#define CONFIG_NUC970_SPI 1
#define CONFIG_CMD_SPI 1
#define CONFIG_CMD_SF 1
#define CONFIG_SPI 1
#define CONFIG_SPI_FLASH 1
#define CONFIG_SPI_FLASH_MACRONIX 1
#define CONFIG_SPI_FLASH_WINBOND 1
#define CONFIG_SPI_FLASH_EON 1
#ifdef CONFIG_ENV_IS_IN_SPI_FLASH
#define CONFIG_ENV_OFFSET 0x80000
#define CONFIG_ENV_SIZE 0x10000
#define CONFIG_ENV_SECT_SIZE 0x10000
#define CONFIG_ENV_OVERWRITE
#endif
#endif
#define CONFIG_SYS_PROMPT "U-Boot> "
#define CONFIG_SYS_CBSIZE 256
#define CONFIG_SYS_MAXARGS 16
#define CONFIG_SYS_PBSIZE (CONFIG_SYS_CBSIZE + sizeof(CONFIG_SYS_PROMPT) + 16)
#define CONFIG_SYS_LONGHELP 1
#define CONFIG_CMDLINE_EDITING 1
#define CONFIG_AUTO_COMPLETE
#define CONFIG_SYS_HUSH_PARSER
#define CONFIG_SYS_PROMPT_HUSH_PS2 "> "
/* Following block is for LCD support */
#if 0
#define CONFIG_LCD
#define CONFIG_NUC970_LCD
//#define CONFIG_NUC977_LCD
#define LCD_BPP LCD_COLOR16
#define CONFIG_LCD_LOGO
#define CONFIG_LCD_INFO
#define CONFIG_LCD_INFO_BELOW_LOGO
#define CONFIG_SYS_CONSOLE_IS_IN_ENV
#define CONFIG_SYS_CONSOLE_OVERWRITE_ROUTINE
#endif
/* Following block is for MMC support */
#if 1
#define CONFIG_NUC970_MMC
#define CONFIG_CMD_MMC
#define CONFIG_CMD_FAT
#define CONFIG_MMC
#define CONFIG_GENERIC_MMC
#define CONFIG_DOS_PARTITION
//#define CONFIG_MMC_TRACE
#define CONFIG_NUC970_SD_PORT0
//#define CONFIG_NUC970_SD_PORT1
//#define CONFIG_NUC970_EMMC /* Don't enable eMMC(CONFIG_NUC970_EMMC) and NAND(CONFIG_NAND_NUC970) at the same time! */
#ifdef CONFIG_ENV_IS_IN_MMC
#define CONFIG_SYS_MMC_ENV_DEV 2
#define CONFIG_ENV_OFFSET 0x80000
#define CONFIG_ENV_SIZE 512
#define CONFIG_ENV_SECT_SIZE 512
#define CONFIG_ENV_OVERWRITE
#endif
#endif
/* Following block is for EHCI support*/
#if 1
#define CONFIG_CMD_USB
#define CONFIG_CMD_FAT
#define CONFIG_USB_STORAGE
#define CONFIG_USB_EHCI
#define CONFIG_USB_EHCI_NUC970
#define CONFIG_EHCI_HCD_INIT_AFTER_RESET
#define CONFIG_DOS_PARTITION
#endif
#define CONFIG_NUC970_GPIO
/*
* Size of malloc() pool
*/
#define CONFIG_SYS_MALLOC_LEN (1024*1024) //ROUND(3 * CONFIG_ENV_SIZE + 128*1024, 0x1000)
#define CONFIG_STACKSIZE (32*1024) /* regular stack */
#endif
4.编译源码
make distclean
make nuc970_config
make all
