function gx_generic_spi_norflash_readdata

int gx_generic_spi_norflash_readdata(
     unsigned int addr,
     unsigned char *data,
     unsigned int len
)

读flash数据

Parameters:

• addr 读取flash的起始地址
• data 读缓存
• len 读取flash的长度

Returns:

int 读取flash是否成功

Return value:

• 0 成功
• -1 失败