89 lines
2.6 KiB
Python
89 lines
2.6 KiB
Python
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import os
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import sys
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compress_flag = 0
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def create_flash_default_data(length):
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datas = bytearray(length)
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for i in range(length):
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datas[i] = 0xff
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return datas
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def gen_flash_bin():
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bootload_file = "./pre_build_bin/spl_bl808_d0.bin"
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dtb_file = "./pre_build_bin/hw.dtb.5M" # 64k
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opensbi_file = "./pre_build_bin/opensbi_v0.6.bin" # 64k
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kernel_file = "./Image.bin"
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kernel_out_img_file = "./whole_img_d0.bin"
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bootload_file_size = os.stat(bootload_file).st_size
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dtb_file_size = os.stat(dtb_file).st_size
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linux_opensbi_file_size = os.stat(opensbi_file).st_size
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kernel_file_size = os.stat(kernel_file).st_size
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whole_img_data = create_flash_default_data(0x10000 + 0x10000 + 0x10000 + kernel_file_size)
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# bootload
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print("bootload size:", bootload_file_size)
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fp = open(bootload_file, 'rb')
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data00 = fp.read() + bytearray(0)
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fp.close()
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whole_img_data[0x0:0x0+len(data00)] = data00 # 0x0~0x10000 64k
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# dtb
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print("dtb size:", dtb_file_size)
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fp = open(dtb_file, 'rb')
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data0 = fp.read() + bytearray(0)
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fp.close()
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whole_img_data[0x10000:0x10000+len(data0)] = data0 # 0x0~0x10000 64k
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# opensbi
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print("opensbi size:",linux_opensbi_file_size)
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fp = open(opensbi_file, 'rb')
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data1 = fp.read() + bytearray(0)
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fp.close()
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whole_img_data[0x20000:0x20000+len(data1)] = data1 # 0x10000~0x20000 64k
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# linux kernel
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print("kernel img size:",kernel_file_size)
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b0 = (kernel_file_size & 0xff000000) >> 24
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b1 = (kernel_file_size & 0xff0000) >> 16
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b2 = (kernel_file_size & 0xff00) >> 8
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b3 = kernel_file_size & 0xff
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# print(b0)
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# print(b1)
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# print(b2)
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# print(b3)
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header2 = [0x00,0x00,0x00,compress_flag,b3,b2,b1,b0]
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whole_img_data[0x2fff8:0x30000] = bytearray((header2)) # image header
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fp = open(kernel_file, 'rb')
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data2 = fp.read() + bytearray(0)
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fp.close()
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whole_img_data[0x30000:0x30000+len(data2)] = data2 # 4M
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fp = open(kernel_out_img_file, 'wb+')
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fp.write(whole_img_data)
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fp.close()
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if __name__ == '__main__':
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if(len(sys.argv) < 2):
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compress_flag = 0
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os.system('cp -rf rtthread_d0.bin Image.bin')
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else:
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if int(sys.argv[1]) == 1:
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print("compress mode...")
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compress_flag = 1
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os.system('lz4 -9 -f rtthread_d0.bin Image.bin')
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else:
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compress_flag = 0
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os.system('cp -rf rtthread_d0.bin Image.bin')
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print("merge bin start...")
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gen_flash_bin()
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print("merge done!")
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os.system('rm -rf Image.bin')
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