nuvoton980 uboot spi nand boot (二)

1      Scope of Document

This document describes how to support spi nand boot

2      Requiremen

2.1     Function Requirement

 

2.2     Performance Requirement

NA

3      Method

3.1     Export cross compiler

export PATH=$PATH:/usr/local/arm_linux_4.8/bin/

 

3.2     Change

 

 

 

 

 

configs/nuc980_eth2uart_defconfig

 

# CONFIG_SPI_FLASH_STMICRO is not set

-# CONFIG_SPI_FLASH_SST is not set

+CONFIG_SPI_FLASH_WINBOND=y

# CONFIG_SPI_NAND is not set

CONFIG_SPI_NAND=y

CONFIG_SPI_FLASH_USE_4K_SECTORS=y

# CONFIG_SPI_FLASH_MTD is not set

 

 

 

include/configs/nuc980_eth2uart.h

 

#define CONFIG_SYS_USE_SPIFLASH

#define CONFIG_SYS_USE_NANDFLASH

-/*#define CONFIG_ENV_IS_IN_NAND */

-#define CONFIG_ENV_IS_IN_SPI_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_SYS_NAND_ECCBYTES        12

#ifdef CONFIG_ENV_IS_IN_NAND

#define CONFIG_ENV_OFFSET       0x80000

-#define CONFIG_ENV_SIZE         0x10000

+#define CONFIG_ENV_SIZE         0x20000

#define CONFIG_ENV_SECT_SIZE    0x20000

#define CONFIG_ENV_RANGE           (4 * CONFIG_ENV_SECT_SIZE)  /* Env range : 0x80000 ~ 0x100000 */

#define CONFIG_ENV_OVERWRITE

 

#define CONFIG_STACKSIZE      (32*1024)     /* regular stack */

 

+#define CONFIG_BOOTCOMMAND      "sf probe 0 30000000; sf read 0x7fc0 0x200000 0x800000; bootm 0x7fc0"

 

#endif

 

 

 

make disclean

 

make nuc980_eth2uart_defconfig

 

make

 

4      Output file

root@vmuer-VirtualBox:/home/vmuer/tmp/nuc980bsp/u-boot-2016.11# ls spl/u-boot-spl.bin

root@vmuer-VirtualBox:/home/vmuer/tmp/nuc980bsp/u-boot-2016.11# ls u-boot.bin