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#------------------------------------------------------------------------------
# $File: rpi,v 1.3 2022/04/02 14:39:34 christos Exp $
# rpi: file(1) magic for Raspberry Pi images
-44 lelong 0
>4 lelong 0
>>8 lelong 1
>>12 lelong 4
>>>16 string 283x
>>>>20 lelong 1
>>>>>24 lelong 4
>>>>>>28 string DTOK
>>>>>>>32 lelong 44
>>>>>>>>36 lelong 4
>>>>>>>>>40 string RPTL Raspberry PI kernel image
-56 lelong 0
>4 lelong 0
>>8 lelong 1
>>12 lelong 4
>>>16 string 283x
>>>>20 lelong 1
>>>>>24 lelong 4
>>>>>>28 string DTOK
>>>>>>>32 lelong 1
>>>>>>>>36 lelong 4
>>>>>>>>>40 string DDTK8
>>>>>>>>>>48 lelong 4
>>>>>>>>>>>52 string RPTL Raspberry PI kernel image
# From: Joerg Jenderek
# URL: https://www.raspberrypi.com/documentation/computers/raspberry-pi.html
# #raspberry-pi-4-boot-eeprom
# Reference: https://github.com/raspberrypi/rpi-eeprom/blob/master/rpi-eeprom-config
# Note: start with same magic as for BIOS (ia32) ROM Extension handled by ./intel
# masked with MAGIC_MASK and then compared with MAGIC
0 belong&0xFFffF00F 0x55aaF00F Raspberry PI EEPROM
#!:mime application/octet-stream
!:mime application/x-raspberry-eeprom
# like: pieeprom-2020-09-03.bin
!:ext bin
# a 32 bit offset to the next section like: 000184d4 000184c8 00018534 ... 0000bb84 0000bbd4 0000bbd4
>4 ubelong x \b, offset %8.8x
#>(4.L) ubelong x NEXT=%8.8x
# self.length
>8 ubelong !0 \b, length %x
# self.filename
>12 string >0 \b, "%s"
# length is zero
>8 ubelong =0
# if length is zero then 2nd section magic here can be zero; this means sections parsing done
>>8 ubelong !0 \b, 2nd MAGIC=%8.8x
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