Sorry for this badly notes... but here some start, i have also done some makefile, to do some of this things auto. I am not any pro of programming and do this stuff's.
But if any one can use some of my stuff and get some ideas and get it working, i will be very happy.
My thoughts maybe learning to do some stuff. And maybe i get some hints from the masters that make this possible. And don't forget to celebrating Bela that made tc for Raspberry Pi. And I am to little to busy right now, to make this for the latest picore. And I am maybe later on thinking of making chipcore. But i think i am need some help to do so.. and where i am to start.
Here my notes file
My config
PC with Arch linux ip 10.42.0.1 user patrik
Raspberry Pi Model B 256M.
On the PC
------------------------------------------
Prep
On arch on pc.
Install uboot-tools, nfs
pacman -S uboot-tools # To make uboot images and env.
pacman -S nfs-utils # To start nfs server.
pacman -S dosfstools # To format partision for msdos and make msdos label
pacman -S unzip # To unzip files.
pacman -S util-linux # To losetup command
suco systemctl enable nfs-server.service
sudo systemctl enable rpcbind.service
sudo systemctl start nfs-server.service
sudo systemctl start rpcbind.service
Edit /etc/conf.d/nfs-server.conf
Add -V 2 to support Ver 2 of nfs to support uboot.
NFSD_OPTS='-V 2'
Make my picore project work directory.
mkdir picore
I set all privileges on that....large security risk...but for easyness for now then mount correct way.
sudo chmod 777 picore
Add share exports to /etc/exports add follow line.
/home/patrik/picore *(rw,sync,no_root_squash,no_subtree_check)
Update nfs shares.
sudo exportfs -arv
ON PI.
First you need uboot.bin so compile that on Raspberry PI.
---------------------------------------------------------
Edit config.txt to make extra ram and enable uart.
mount /mnt/mmcblk0p1/
sudo nano /mnt/mmcblk0p1/config.txt
gpu_mem=16
enable_uart=1
sudo reboot
To make uboot on pi you need some programs, load this, expand part 2 first if you running tc from scratch.
tce-load -wi compile-essentials.tcz binutils.tcz git.tcz nano.tcz coreutils.tcz bc.tcz
tce-load -wi compiletc.tcz coreutils.tcz binutils.tcz git.tcz nano.tcz bc.tcz
cd /mnt/mmcblk0p2/tce
git clone git://git.denx.de/u-boot.git
cd u-boot
make rpi_defconfig
make
Copy the file to the PC.
scp u-boot.bin patrik@10.42.0.1:/home/patrik/picore/uboot.bin
ON PC
Change to project dir.
cd /home/patrik/picore
Get the picore zip file.
wget http://tinycorelinux.net/7.x/armv6/releases/RPi/piCore-7.0.zip
Unzip the picore zip file.
unzip piCore-7.0.zip
Make mountpoint directory img.
mkdir img
Get start offset of first vfat partistion in img.
fdisk -l piCore-7.0.img
Device Boot Start End Sectors Size Id Type
piCore-7.0.img1 8192 69631 61440 30M c W95 FAT32 (LBA)
piCore-7.0.img2 69648 93119 23472 11.5M 83 Linux
Sectorsize=512 bytes
Startsector first part=8192
8192*512=4194304
Mount the vfat part to img directory
sudo mount -t vfat -o ro,loop,offset=$((8192*512)) piCore-7.0.img img
boot
Copy the kernel initrd cmdline files.
cp ./img/7.0.gz .
cp ./img/kernel4113.img .
cp ./img/cmdline.txt .
Unmount the img.
sudo umount img/
Make uboot bootable image files with kernel4113.img and 7.0.gz.
mkimage -A arm -O linux -T kernel -C none -a 0x01000000 -n Kernel -d kernel4113.img kernel.img
mkimage -A arm -O linux -T ramdisk -C gzip -a 0x02100000 -n RAMDisk -d 7.0.gz ramdisk.img
Make sd image 25meg is enuff.
dd if=/dev/zero of=image.img bs=1M count=25
parted --script -a none -s image.img mktable msdos mkpart primary fat32 0 10M mkpart primary ext4 10M 100%
sudo losetup -o $((512*1)) /dev/loop0 image.img
mkdir sdimg
sudo mkfs.vfat /dev/loop0
sudo dosfslabel /dev/loop0 RASPBOOT
sudo mount /dev/loop0 sdimg
Get latest firmware unzip only boot.
svn checkout --config-option config:miscellany:use-commit-times=yes https://github.com/raspberrypi/firmware/trunk/boot .
find . -type d -name .svn -exec rm -rf {} \;
rm kernel.img
rm kernel7.img
wget https://github.com/raspberrypi/firmware/archive/master.zip
unzip -d . master.zip 'firmware-master/boot/*'
mv firmware-master/boot/ .
rmdir firmware-master/
rm ./boot/kernel.img
rm ./boot/kernel7.img
sudo cp -R ./boot/* sdimg/
Make uboot.env file.
Edit /etc/fw_env.config
uboot.env 0x0000 0x4000 0x4000
dd if=/dev/zero of=uboot.env bs=1K count=16
To run uboot-tools some problems with lock file solved like this.
sudo touch /var/lock/fw_printenv.lock
sudo chown patrik /var/lock/fw_printenv.lock
#Clear out default settings from env file
fw_printenv | cut -f1 -d'=' | fw_setenv -s -
fw_setenv stdin 'serial,usbkbd'
fw_setenv stdout 'serial,lcd'
fw_setenv stderr 'serial,lcd'
fw_setenv bootdelay '3'
fw_setenv bootcmd 'usb start;setexpr macaddr gsub ":" "" ${ethaddr};env set ethact sms0;env set autoload no;dhcp;nfs 0x02000000 ${serverip}:/home/patrik/picore/${macaddr}.img;source 0x02000000'
nfs \${fdt_addr_r} \${serverip}:\${rootpath}\${fdtfile}
Copy the u-boot.env file to sdimg
sudo cp uboot.env sdimg
Make very simple config.txt file
echo kernel=u-boot.bin > config.txt
echo gpu_mem=16 >> config.txt
echo enable_uart=1 >> config.txt
Copy the config.txt to sdimg
sudo cp config.txt sdimg
umount sdimg
sudo umount sdimg
sudo losetup -d /dev/loop0
copy image to sdcard my sd card is on /dev/sdd.
sudo dd if=image.img of=/dev/sdd bs=4M
sync
#Add in cmdline.txt for swedish keyboard and Europe/Stockholm time zon.
#tz=CET-1CEST,M3.5.0,M10.5.0/3
#kmap=qwerty/sv-latin1
Make bootscr.txt with bash script. run with macaddress.img as parameter
#!/bin/bash
boardargs="bcm2708.boardrev=0x2 bcm2708.serial=0x46d41c0b"
cmdlineargs=$(cat cmdline.txt | cut -f2- -d' ')
extraargs="tz=CET-1CEST,M3.5.0,M10.5.0/3 kmap=qwerty/sv-latin1 lang=sv_SE.UTF-8"
echo "env set cmdline '$boardargs $cmdlineargs $extraargs'" > bootscr.txt
echo "env set nfs_rampos 'env set kernel_addr_r \"0x01000000\";env set ramdisk_addr_r \"0x02100000\";env set fdt_addr_r \"0x00000100\"'" >> bootscr.txt
echo "env set nfs_filename 'env set kernelfile \"kernel.img\";env set ramdiskfile \"ramdisk.img\";env set fdtfile \"bcm2708-rpi-b.dtb\"'" >> bootscr.txt
echo "env set nfs_rootpath 'env set rootpath \"/home/patrik/picore/\"'" >> bootscr.txt
echo "env set nfs_bootargs 'env set bootargs \"\${cmdline} nfsmount=\${serverip}:\${rootpath} tce=nfs/tce\"'" >> bootscr.txt
echo "env set nfs_load 'nfs \${kernel_addr_r} \${serverip}:\${rootpath}\${kernelfile};nfs \${ramdisk_addr_r} \${serverip}:\${rootpath}\${ramdiskfile};nfs \${fdt_addr_r} \${serverip}:\${rootpath}\${fdtfile}'" >> bootscr.txt
echo "env set nfs_start 'run nfs_rampos nfs_filename nfs_rootpath nfs_bootargs nfs_load;bootm \${kernel_addr_r} \${ramdisk_addr_r} \${fdt_addr_r}'" >> bootscr.txt
echo "run nfs_start" >> bootscr.txt
mkimage -A arm -O linux -T script -C none -a 0x02000000 -n Script -d bootscr.txt $1
Here the makefile.
# Package need to do make.
# dosfstools
# unzip
# util-linux
# uboot-tools
WORKDIR=$(shell pwd)/
TEMPWORKDIR=$(WORKDIR)TEMP/
FIRMWAREURL=https://github.com/raspberrypi/firmware/archive/
FIRMWAREDIR=firmware-master/boot/
FIRMWARETARFILE=master.tar.gz
PICOREURL=http://tinycorelinux.net/8.x/armv6/releases/RPi/
PICOREZIPFILE=piCore-8.1.5.zip
PICOREIMGFILE=piCore-8.1.5.img
PICOREROOTFILE=8.1.5.gz
PICORECMDLINEFILE=cmdline.txt
PICOREKERNELFILE=kernel4439.img
PICORECONFIGFILE=config.txt
PARTFATBEGIN=$(shell LANG=C parted -s $(TEMPWORKDIR)$(PICOREIMGFILE) unit s print | awk '/^Number/{p=1;next} p{p++} {if (p==2) printf("%i",$$2)}')
PARTFATEND=$(shell LANG=C parted -s $(TEMPWORKDIR)$(PICOREIMGFILE) unit s print | awk '/^Number/{p=1;next} p{p++} {if (p==2) printf("%i",$$3)}')
PARTEXTBEGIN=$(shell LANG=C parted -s $(TEMPWORKDIR)$(PICOREIMGFILE) unit s print | awk '/^Number/{p=1;next} p{p++} {if (p==3) printf("%i",$$2)}')
PARTEXTEND=$(shell LANG=C parted -s $(TEMPWORKDIR)$(PICOREIMGFILE) unit s print | awk '/^Number/{p=1;next} p{p++} {if (p==3) printf("%i",$$3)}')
PARTFATBEGINOFFSET=$(shell echo $$(($(PARTFATBEGIN)*$(SECTORSIZE))))
PARTEXTBEGINOFFSET=$(shell echo $$(($(PARTEXTBEGIN)*$(SECTORSIZE))))
PARTFATENDOFFSET=$(shell echo $$(($(PARTFATEND)*$(SECTORSIZE))))
PARTEXTENDOFFSET=$(shell echo $$(($(PARTEXTEND)*$(SECTORSIZE))))
PICORELOOPDEV=/dev/loop0
PICORELOOPDIR=loop0/
SDIMGLOOPDEV=/dev/loop1
SDIMGLOOPDIR=loop1/
SECTORSIZE=512
SDIMAGESIZE=25
MB=1048576
SDFATPART=10
SDFATPARTSIZE=$(shell echo $$(($(MB)*$(SDFATPART)/$(SECTORSIZE))))
FATLABEL=RASBBOOT
PARTSTARTOFFSET=1
EXT4START=$(shell echo $$(($(SDFATPARTSIZE)+$(PARTSTARTOFFSET))))
SDIMAGEFILE=new_image.img
all: help
getpicorezipfile:
wget $(PICOREURL)$(PICOREZIPFILE) -O $(TEMPWORKDIR)$(PICOREZIPFILE)
help:
@echo "1. make prep"
@echo "2. make getimage"
@echo "3. make help $(WORKDIR)"
mktempdir:
mkdir -p $(TEMPWORKDIR)
unzippicore:
unzip $(TEMPWORKDIR)$(PICOREZIPFILE) $(PICOREIMGFILE) -d $(TEMPWORKDIR)
mksdimage:
dd if=/dev/zero of=$(TEMPWORKDIR)$(SDIMAGEFILE) bs=1M count=$(SDIMAGESIZE)
partsdimage:
parted --script -a none $(TEMPWORKDIR)$(SDIMAGEFILE) unit s mktable msdos mkpart primary fat32 $(PARTSTARTOFFSET) $(SDFATPARTSIZE) mkpart primary ext4 $(EXT4START) 100%
picorelsetup:
sudo losetup -r -o $(PARTFATBEGINOFFSET) $(PICORELOOPDEV) $(TEMPWORKDIR)$(PICOREIMGFILE)
sdlsetup:
sudo losetup -o $(SECTORSIZE) $(SDIMGLOOPDEV) $(TEMPWORKDIR)$(SDIMAGEFILE)
formatsdfat:
sudo mkfs.vfat $(SDIMGLOOPDEV)
labelsdfat:
sudo dosfslabel $(SDIMGLOOPDEV) $(FATLABEL)
mkpicoreloopdir:
mkdir -p $(TEMPWORKDIR)$(PICORELOOPDIR)
mksdloopdir:
mkdir -p $(TEMPWORKDIR)$(SDIMGLOOPDIR)
rmpicoreloopdir:
rmdir $(TEMPWORKDIR)$(PICORELOOPDIR)
rmsdloopdir:
rmdir $(TEMPWORKDIR)$(SDIMGLOOPDIR)
mountpicoreloop:
sudo mount $(PICORELOOPDEV) $(TEMPWORKDIR)$(PICORELOOPDIR)
mountsdloop:
sudo mount $(SDIMGLOOPDEV) $(TEMPWORKDIR)$(SDIMGLOOPDIR)
umountpicoreloop:
sudo umount $(TEMPWORKDIR)$(PICORELOOPDIR)
umountsdloop:
sudo umount $(TEMPWORKDIR)$(SDIMGLOOPDIR)
picoreulsetup:
sudo losetup -d $(PICORELOOPDEV)
sdulsetup:
sudo losetup -d $(SDIMGLOOPDEV)
downloadfirmware:
wget $(FIRMWAREURL)$(FIRMWARETARFILE) -O - | tar -zxvf - -C $(TEMPWORKDIR) $(FIRMWAREDIR)
downloadpicore:
wget $(PICOREURL)$(PICOREZIPFILE) -O $(TEMPWORKDIR)$(PICOREZIPFILE)
removekernelfiles:
rm $(TEMPWORKDIR)$(FIRMWAREDIR)kernel.img
rm $(TEMPWORKDIR)$(FIRMWAREDIR)kernel7.img
movefirmware:
sudo mv -t $(TEMPWORKDIR)$(SDIMGLOOPDIR) $(TEMPWORKDIR)$(FIRMWAREDIR)*
mksdimgconfig:
sudo sh -c 'echo kernel=u-boot.bin > $(TEMPWORKDIR)$(SDIMGLOOPDIR)$(PICORECONFIGFILE)'
sudo sh -c 'echo gpu_mem=16 >> $(TEMPWORKDIR)$(SDIMGLOOPDIR)$(PICORECONFIGFILE)'
sudo sh -c 'echo enable_uart=1 >> $(TEMPWORKDIR)$(SDIMGLOOPDIR)$(PICORECONFIGFILE)'
showpicoreparts:
@echo "Part 1 Begin $(PARTFATBEGINOFFSET)"
@echo "Part 1 End $(PARTFATENDOFFSET)"
@echo "Part 2 Begin $(PARTEXTBEGINOFFSET)"
@echo "Part 2 End $(PARTEXTENDOFFSET)"
copypicorefiles:
sudo cp $(TEMPWORKDIR)$(PICORELOOPDIR)$(PICOREKERNELFILE) $(TEMPWORKDIR)$(SDIMGLOOPDIR)$(PICOREKERNELFILE)
sudo cp $(TEMPWORKDIR)$(PICORELOOPDIR)$(PICOREROOTFILE) $(TEMPWORKDIR)$(SDIMGLOOPDIR)$(PICOREROOTFILE)
sudo cp $(TEMPWORKDIR)$(PICORELOOPDIR)$(PICORECMDLINEFILE) $(TEMPWORKDIR)$(SDIMGLOOPDIR)$(PICORECMDLINEFILE)
sdtest: mktempdir mksdimage partsdimage sdlsetup formatsdfat labelsdfat mksdloopdir mountsdloop mksdimgconfig
usdtest: umountsdloop sdulsetup rmsdloopdir
pitest: unzippicore picorelsetup mkpicoreloopdir mountpicoreloop copypicorefiles
upitest: umountpicoreloop picoreulsetup rmpicoreloopdir
firmware: mktempdir downloadfirmware removekernelfiles mksdloopdir movefirmware mksdimgconfig
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