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Update doc
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37
README.md
37
README.md
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@ -68,7 +68,7 @@ https://github.com/Fishwaldo/sophgo-sg200x-debian/releases
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We pick the Latest Release for Milk-V Duo S...
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https://github.com/Fishwaldo/sophgo-sg200x-debian/releases/download/v1.1.0/duos_sd.img.lz4
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https://github.com/Fishwaldo/sophgo-sg200x-debian/releases/download/v1.2.0/duos_sd.img.lz4
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```bash
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$ brew install lz4
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@ -189,23 +189,22 @@ Let's dump the U-Boot Config...
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https://gist.github.com/lupyuen/000b55a46336cddf217a589f469d60e2
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```bash
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U-Boot 2021.10-ga57aa1f2-dirty (Apr 24 2024 - 11:24:46 +0000) cvitek_cv181x
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U-Boot 2021.10-ga57aa1f2-dirty (May 07 2024 - 08:13:12 +0000) cvitek_cv181x
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DRAM: 510 MiB
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gd->relocaddr=0x9fbc7000. offset=0x1f9c7000
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gd->relocaddr=0x9fbc6000. offset=0x1f9c6000
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set_rtc_register_for_power
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MMC: cv-sd@4310000: 0, wifi-sd@4320000: 1
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Loading Environment from nowhere... OK
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Loading Environment from FAT... mmc1 : finished tuning, code:53
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OK
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In: serial
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Out: serial
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Err: serial
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Net:
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Warning: ethernet@4070000 (eth0) using random MAC address - 82:c2:1a:b2:ee:b5
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Warning: ethernet@4070000 (eth0) using random MAC address - 0a:fa:e9:48:cc:c1
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eth0: ethernet@4070000
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Hit any key to stop autoboot: 0
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$ printenv
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cv181x_c906# printenv
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arch=riscv
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baudrate=115200
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board=mars
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@ -229,7 +228,7 @@ cpu=generic
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distro_bootcmd=for target in ${boot_targets}; do run bootcmd_${target}; done
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efi_dtb_prefixes=/ /dtb/ /dtb/current/
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fdt_addr_r=0x81200000
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fdtcontroladdr=9f280810
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fdtcontroladdr=9f27f810
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fdtfile=cv181x_milkv_duos_sd.dtb
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fdtoverlay_addr_r=0x81300000
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gatewayip=192.168.0.11
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@ -243,7 +242,7 @@ netdev=eth0
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netmask=255.255.255.0
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othbootargs=earlycon=sbi riscv.fwsz=0x80000 loglevel=9
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pxefile_addr_r=0x81400000
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ramdisk_addr_r=0x81600000
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ramdisk_addr_r=0x84000000
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root=root=/dev/mmcblk0p2 rootwait rw
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scan_dev_for_boot=echo Scanning ${devtype} ${devnum}:${distro_bootpart}...; for prefix in ${boot_prefixes}; do run scan_dev_for_extlinux; run scan_dev_for_scripts; done;run scan_dev_for_efi;
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scan_dev_for_boot_part=part list ${devtype} ${devnum} -bootable devplist; env exists devplist || setenv devplist 1; for distro_bootpart in ${devplist}; do if fstype ${devtype} ${devnum}:${distro_bootpart} bootfstype; then run scan_dev_for_boot; fi; done; setenv devplist
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@ -261,7 +260,6 @@ stdout=serial
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uImage_addr=0x81800000
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update_addr=0x9fe00000
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vendor=cvitek
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Environment size: 4333/131068 bytes
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```
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@ -292,9 +290,8 @@ printenv tftp_server
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setenv ramdisk_size 0x1000000
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printenv ramdisk_size
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## TODO: saveenv doesn't exist, can't save Environment Variables!
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## TODO: Update the Boot Config in MicroSD instead
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## saveenv
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## Update the Boot Config in MicroSD instead
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saveenv
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## Fetch the IP Address over DHCP
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## Load the NuttX Image from TFTP Server
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@ -904,7 +901,7 @@ Let's dump the SG2000 Linux Device Tree to understand the Interrupt Controller.
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From the SG2000 Debian Release: https://github.com/Fishwaldo/sophgo-sg200x-debian/releases
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We pick the Latest Release for Milk-V Duo S: https://github.com/Fishwaldo/sophgo-sg200x-debian/releases/download/v1.1.0/duos_sd.img.lz4
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We pick the Latest Release for Milk-V Duo S: https://github.com/Fishwaldo/sophgo-sg200x-debian/releases/download/v1.2.0/duos_sd.img.lz4
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We copy out the SG2000 Device Tree Binary: [cv181x_milkv_duos_sd.dtb](cv181x_milkv_duos_sd.dtb)
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@ -991,10 +988,12 @@ TODO: Fix the PLIC Interrupt Controller in NuttX
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# U-Boot Commands for Milk-V Duo S
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Here are the U-Boot Commands available for Milk-V Duo S (which doesn't support writing to Flash Memory)...
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Here are the U-Boot Commands available for Milk-V Duo S...
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https://gist.github.com/lupyuen/000b55a46336cddf217a589f469d60e2
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```bash
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$ help
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cv181x_c906# help
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? - alias for 'help'
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base - print or set address offset
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@ -1068,10 +1067,12 @@ part - disk partition related commands
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ping - send ICMP ECHO_REQUEST to network host
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printenv - print environment variables
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protect - enable or disable FLASH write protection
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pxe - commands to get and boot from pxe
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pxe - commands to get and boot from pxe files
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random - fill memory with random pattern
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reset - Perform RESET of the CPU
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run - run commands in an environment variable
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save - save file to a filesystem
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saveenv - save environment variables to persistent storage
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setenv - set environment variables
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setexpr - set environment variable as the result of eval expression
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showvar - print local hushshell variables
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