mirror of
https://github.com/sipeed/LicheeRV-Nano-Build.git
synced 2026-09-11 05:09:56 -05:00
164 lines
3.3 KiB
Plaintext
164 lines
3.3 KiB
Plaintext
#!/busybox sh
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export PATH=/
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msc() {
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echo mmc0 > /sys/devices/platform/leds/leds/led-user/trigger
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# backlight
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devmem 0x030010AC 32 0x04 # PINMUX PWM10
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blpwm="/sys/class/pwm/pwmchip8/pwm2/"
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if [ ! -e "${blpwm}" ]
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then
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echo 2 > /sys/class/pwm/pwmchip8/export
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fi
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echo 0 > $blpwm/enable
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echo "10000" > ${blpwm}/period # 100KHZ
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panel_value=""
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if [ -e /boot/board ]
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then
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panel_value=$(grep '^panel=' /boot/board | cut -d '=' -f 2)
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elif [ -e /boot/uEnv.txt ]
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then
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panel_value=$(grep '^panel=' /boot/uEnv.txt | cut -d '=' -f 2)
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fi
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if [ "$panel_value" = "st7701_hd228001c31" ] || [ "$panel_value" = "st7701_lct024bsi20" ]
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then
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echo "2000" > ${blpwm}/duty_cycle # 20%
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else
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echo "5000" > ${blpwm}/duty_cycle
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fi
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echo 1 > $blpwm/enable
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umount /dev/mmcblk0p1
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umount /dev/mmcblk0p2 || true
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# usb
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mount -t configfs configfs /sys/kernel/config
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cd /sys/kernel/config/usb_gadget
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mkdir g0
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cd g0
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if [ -e /boot/usb.idVendor ]
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then
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cat /boot/usb.idVendor > idVendor
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else
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echo 0x3346 > idVendor
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fi
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if [ -e /boot/usb.idProduct ]
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then
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cat /boot/usb.idProduct > idProduct
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else
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echo 0x1009 > idProduct
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fi
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mkdir strings/0x409
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if [ -e /boot/usb.serialnumber ]
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then
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cat /boot/usb.serialnumber > strings/0x409/serialnumber
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else
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echo '0123456789ABCDEF' > strings/0x409/serialnumber
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fi
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if [ -e /boot/usb.manufacturer ]
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then
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cat /boot/usb.manufacturer > strings/0x409/manufacturer
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else
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echo 'sipeed' > strings/0x409/manufacturer
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fi
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if [ -e /boot/usb.product ]
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then
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cat /boot/usb.product > strings/0x409/product
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else
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echo 'licheervnano' > strings/0x409/product
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fi
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mkdir configs/c.1/
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mkdir functions/mass_storage.disk0
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ln -s functions/mass_storage.disk0 configs/c.1/
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echo 1 > functions/mass_storage.disk0/lun.0/removable
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echo /dev/mmcblk0 > functions/mass_storage.disk0/lun.0/file
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ls /sys/class/udc/ | cat > UDC
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echo device > /proc/cviusb/otg_role
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while true
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do
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sleep 1
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busybox iostat
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busybox uptime
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busybox uname
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sync
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done
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}
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set -x
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mkdir -p /dev
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mount -t devtmpfs devtmpfs /dev
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mkdir -p /proc
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mount -t proc proc /proc
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mkdir -p /sys
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mount -t sysfs sysfs /sys
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# mount -t debugfs debugfs /sys/kernel/debug
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mkdir -p /boot
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# wait ready
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i=0
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while [ ! -e /dev/mmcblk0p1 ] && [ $i -lt 5 ]; do
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echo "Waiting for /dev/mmcblk0p1..."
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sleep 1
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i=$((i+1))
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done
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mount -o ro /dev/mmcblk0p1 /boot
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ret=$?
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if [ $ret -ne 0 ] || [ -e /boot/rec ]; then
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echo "Mount boot failed, Entering recovery mode..."
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msc
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fi
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# flashkey0=$(cat /sys/kernel/debug/gpio | grep 'User Key' | grep lo | wc -l)
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# if [ "${flashkey0}" -ne 0 ]
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# then
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# msc
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# fi
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boot_key=0
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for arg in $(cat /proc/cmdline); do
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case "$arg" in
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boot_key=*)
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boot_key="${arg#boot_key=}"
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;;
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esac
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done
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if [ "${boot_key}" -eq 1 ] # boot key pressed
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then
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msc
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fi
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umount /dev/mmcblk0p1
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mkdir /realroot
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# parted -s /dev/mmcblk0 "resizepart 2 -0"
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# echo "yes
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# 100%
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# " | parted ---pretend-input-tty /dev/mmcblk0 "resizepart 2 100%"
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# #e2fsck -fvp /dev/mmcblk0p2
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# resize2fs /dev/mmcblk0p2
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mount -o rw /dev/mmcblk0p2 /realroot
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mfail="$?"
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if [ "${mfail}" -ne 0 ]
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then
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e2fsck -fvp /dev/mmcblk0p2
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mount -o rw /dev/mmcblk0p2 /realroot
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mfail="$?"
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if [ "${mfail}" -ne 0 ]
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then
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msc
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fi
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fi
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mount -t proc proc /realroot/proc
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mount -t sysfs sysfs /realroot/sys
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mount -t devtmpfs devtmpfs /realroot/dev
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exec switch_root /realroot /sbin/init
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