詳解・電子辞書で Linux がブートするまで / boot-linux-on-sharp-brain-explained

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Linux Brain Hackers Meetup # 1 @puhitaku

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Takumi Sueda @puhitaku 2020 9 SHARP Brain   Linux 10   Brain Hackers

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SHARP Windows CE   CE exe (PE) 2011 TOSHIBA TMPA 9 10 CRAXBG (armv 4 l) + 64 MiB DRAM Windows CE 2012 2020 NXP i.MX 2 8 (armv 5 tej) + 12 8 MiB DRAM Windows CE 2021 NXP i.MX 7 ULP (armv 7 -a, armv 7 e-m) + 128 MiB DRAM μITRON RTOS : SHARP Brain 4 https://jp.sharp/edictionary/products/pwsh 1 _overviiew.html

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puhitaku PW-SH 1 Linux Brain Hackers + i.MX 28 Debian Brainux Raspberry Pi Brain Linux PW-x 1 (i.MX 7 ULP)   @pepepper 11/20 Kernel/VM online part 4 : Brain Linux 5 https://jp.sharp/edictionary/products/pwsh 1 _overviiew.html

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Windows Linux 7 https://jp.sharp/edictionary/products/pwsh 1 _overviiew.html ? Linux

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Windows Linux 8 https://jp.sharp/edictionary/products/pwsh 1 _overviiew.html ? Windows CE  

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1 . Windows 1 . Windows 9

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1 . Windows ARM SoC 10

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1 . Windows A. Boot ROM 11

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1 . Windows A. Boot ROM   (i.MX 28 : On-chip ROM) 12

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1 . Windows ARM DRAM ; 13 eMMC DRAM I 2 C SPI ARM 9 2 6 EJ-S   Core

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1 . Windows On-chip ROM On-chip RAM On-chip ROM On-chip RAM 14 On-chip ROM On-chip RAM   (SRAM) ARM 9 2 6 EJ-S   Core

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ARM 9 2 6 EJ-S   Core 1 . Windows On-chip ROM 15 On-chip ROM On-chip RAM   (SRAM) 🤔 ARM USB slave (recovery) I 2 C SPI SSP (eMMC / SD) GPMI (NAND) JTAG

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ARM 9 2 6 EJ-S   Core 1 . Windows Brain One-Time-Programmable ROM eMMC   I 2 C EEPROM eMMC 16 On-chip ROM On-chip RAM   (SRAM) 😊 ARM USB slave (recovery) SSP (eMMC / SD) SPI I 2 C GPMI (NAND) JTAG eMMC

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1 . Windows eMMC Program Image DRAM (EBOOT) 17 😊 ARM SSP (eMMC / SD) Program Image MBR Program Image Boot ROM   : Windows DRAM init. EBOOT NK image

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1 . Windows EBOOT NK image Windows   DRAM 18 😊 ARM SSP (eMMC / SD) MBR Program Image DRAM init. EBOOT NK image DRAM   EBOOT On-chip ROM On-chip RAM DRAM NK image EBOOT

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1 . Windows Windows CE 19 https://jp.sharp/edictionary/products/pwsh 1 _overviiew.html

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1 . Windows 20 Boot ROM Program   Image EBOOT Windows

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2 . Windows 2 . Windows 21

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2 . Windows 22 https://jp.sharp/edictionary/products/pwsh 1 _overviiew.html ? Linux

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2 . Windows SHARP Windows CE   CE exe (PE) 2011 TOSHIBA TMPA 9 10 CRAXBG (armv 4 l) + 64 MiB DRAM Windows CE 2012 2020 NXP i.MX 2 8 (armv 5 tej) + 12 8 MiB DRAM Windows CE 2021 NXP i.MX 7 ULP (armv 7 -a, armv 7 e-m) + 128 MiB DRAM μITRON RTOS : SHARP Brain 23 https://jp.sharp/edictionary/products/pwsh 1 _overviiew.html

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2 . Windows " " BrainLILO   24 Windows eMMC FAT 32 " " BrainLILO u-boot.bin DRAM Windows   Kernel Brain   LILO BrainLILO ???

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2 . Windows U-Boot (u-boot.bin) DRAM 25 Windows eMMC u-boot.bin   DRAM Windows   Kernel Brain   LILO u-boot.bin FAT 32 " " BrainLILO u-boot.bin ???

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2 . Windows MMU (Memory Management Unit) etc. 26 Windows eMMC DRAM u-boot.bin 🔥 🔥 🔥 🔥 FAT 32 " " BrainLILO u-boot.bin ???

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2 . Windows U-Boot 27 Windows eMMC ͞Α͏ͳΒʜ DRAM u-boot.bin 🔥 🔥 🔥 🔥 FAT 32 " " BrainLILO u-boot.bin ???

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2 . Windows U-Boot   Linux 28 U-Boot eMMC DRAM u-boot.bin FAT 32 " " BrainLILO u-boot.bin Linux Image Linux Image Linux

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2 . Windows Linux 29 https://jp.sharp/edictionary/products/pwsh 1 _overviiew.html

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2 . Windows 30 BrainLILO U-Boot Windows

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3 . Linux 3 . Linux 31

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3 . Linux Linux 1 32 Program   Image Brain   LILO U-Boot EBOOT U-Boot Boot ROM U-Boot Program   Image  

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3 . Linux 3 . 1 . EBOOT U-Boot 33 Program   Image Brain   LILO U-Boot EBOOT U-Boot Boot ROM U-Boot Program   Image  

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3 . Linux eMMC NK image   SD NK image 34 PW-SH 1 EBOOT

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3 . Linux NK image U-Boot   EBOOT U-Boot 35 SD FAT 32 EDSA 1 EXE.BIN     u-boot.bin NK image

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3 . 2 . Boot ROM Program Image U-Boot 3 . 2 . Boot ROM Program Image U-Boot 36 Program   Image Brain   LILO U-Boot Boot ROM U-Boot Program   Image   U-Boot EBOOT

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3 . 2 . Boot ROM Program Image U-Boot eMMC EBOOT U-Boot Program Image   Linux 37 eMMC MBR Program Image U-Boot SPL U-Boot Linux rootfs (ext 4 )

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3 . 2 . Boot ROM Program Image U-Boot EBOOT BrainLILO Program Image 38 Program   Image Brain   LILO U-Boot Boot ROM U-Boot Program   Image   U-Boot EBOOT ❌ ⭕ ⭕

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4 . Program Image 4 . Program Image 39

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4 . Program Image eMMC Linux SD I/O SD SDIO Wi-Fi Linux GPIO Program Image 40

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5. 5. 41

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5. SHARP Brain Linux Windows BrainLILO U-Boot EBOOT (Windows ) U-Boot Boot ROM U-Boot Boot ROM 42

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Brain Hackers