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#!/bin/bash
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# This script is used to flash the UEFI/EDKII
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# Syntax: ampere_flash_bios.sh $image_file $device_sellect
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# Where:
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# $image_file : the image binary file
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# $device_sellect : 1 - Host Main SPI Nor
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# 2 - Host Second SPI Nor
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# Author : Chanh Nguyen (chnguyen@amperecomputing.com)
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# Note:
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# BMC_GPIOW6_SPI0_PROGRAM_SEL (GPIO 182): 1 => BMC owns SPI bus for upgrading
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# 0 => HOST owns SPI bus for upgrading
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# BMC_GPIOW7_SPI0_BACKUP_SEL (GPIO 183) : 1 => to switch SPI_CS0_L to primary SPI Nor device
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# 0 => to switch SPI_CS0_L to second SPI Nor device
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# shellcheck disable=SC2046
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do_flash () {
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# Check the HNOR partition available
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HOST_MTD=$(< /proc/mtd grep "pnor" | sed -n 's/^\(.*\):.*/\1/p')
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if [ -z "$HOST_MTD" ];
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then
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# Check the ASpeed SMC driver binded before
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HOST_SPI=/sys/bus/platform/drivers/spi-aspeed-smc/1e630000.spi
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if [ -d "$HOST_SPI" ]; then
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echo "Unbind the ASpeed SMC driver"
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echo 1e630000.spi > /sys/bus/platform/drivers/spi-aspeed-smc/unbind
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sleep 2
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fi
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# If the HNOR partition is not available, then bind again driver
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echo "--- Bind the ASpeed SMC driver"
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echo 1e630000.spi > /sys/bus/platform/drivers/spi-aspeed-smc/bind
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sleep 2
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HOST_MTD=$(< /proc/mtd grep "pnor" | sed -n 's/^\(.*\):.*/\1/p')
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if [ -z "$HOST_MTD" ];
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then
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echo "Fail to probe Host SPI-NOR device"
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exit 1
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fi
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fi
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echo "--- Flashing firmware image $IMAGE to @/dev/$HOST_MTD"
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flashcp -v "$IMAGE" /dev/"$HOST_MTD"
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}
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if [ $# -eq 0 ]; then
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echo "Usage: $(basename "$0") <UEFI/EDKII image file> <DEV_SEL> [SPECIAL_BOOT]"
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echo "Where:"
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echo " DEV_SEL 1 is Primary SPI (by default), 2 is Second SPI"
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echo " SPECIAL_BOOT: Optional, input '1' to enter & flash SPECIAL_BOOT mode. Default: 0"
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exit 0
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fi
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IMAGE="$1"
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if [ ! -f "$IMAGE" ]; then
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echo "The image file $IMAGE does not exist"
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exit 1
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fi
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if [ -z "$2" ]; then
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DEV_SEL="1" # by default, select primary device
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else
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DEV_SEL="$2"
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fi
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SPECIAL_BOOT=0
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if [[ "$3" == "1" ]]; then
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SPECIAL_BOOT=1
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fi
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echo "SPECIAL_BOOT mode: $SPECIAL_BOOT"
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# Turn off the Host if it is currently ON
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chassisstate=$(obmcutil chassisstate | awk -F. '{print $NF}')
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echo "--- Current Chassis State: $chassisstate"
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if [ "$chassisstate" == 'On' ];
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then
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echo "--- Turning the Chassis off"
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obmcutil chassisoff
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sleep 10
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# Check if HOST was OFF
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chassisstate_off=$(obmcutil chassisstate | awk -F. '{print $NF}')
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if [ "$chassisstate_off" == 'On' ];
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then
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echo "--- Error : Failed turning the Chassis off"
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exit 1
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fi
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fi
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# Switch the host SPI bus to BMC"
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echo "--- Switch the host SPI bus to BMC."
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if ! gpioset $(gpiofind spi0-program-sel)=1; then
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echo "ERROR: Switch the host SPI bus to BMC. Please check gpio state"
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exit 1
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fi
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# Switch the host SPI bus (between primary and secondary)
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# 183 is BMC_GPIOW7_SPI0_BACKUP_SEL
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if [[ $DEV_SEL == 1 ]]; then
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echo "Run update Primary Host SPI-NOR"
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gpioset $(gpiofind spi0-backup-sel)=1 # Primary SPI
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elif [[ $DEV_SEL == 2 ]]; then
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echo "Run update Second Host SPI-NOR"
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gpioset $(gpiofind spi0-backup-sel)=0 # Second SPI
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else
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echo "Please choose primary SPI (1) or second SPI (2)"
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exit 0
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fi
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# Restrict to flash Second Host SPI-NOR in case of SPECIAL_BOOT
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if [ $SPECIAL_BOOT == 1 ] && [ "$DEV_SEL" == 2 ]; then
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echo "Not allow to flash the Second Host SPI-NOR with SPECIAL_BOOT image"
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exit
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fi
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# Flash the firmware
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do_flash
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# Assert SPECIAL_BOOT GPIO PIN
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if [[ $SPECIAL_BOOT == 1 ]]; then
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gpioset $(gpiofind host0-special-boot)=1
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fi
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# Switch the SPI bus to the primary spi device
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echo "Switch to the Primary Host SPI-NOR"
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gpioset $(gpiofind spi0-backup-sel)=1 # Primary SPI
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# Switch the host SPI bus to HOST."
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echo "--- Switch the host SPI bus to HOST."
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if ! gpioset $(gpiofind spi0-program-sel)=0; then
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echo "ERROR: Switch the host SPI bus to HOST. Please check gpio state"
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exit 1
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fi
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if [ "$chassisstate" == 'On' ] || [ $SPECIAL_BOOT == 1 ];
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then
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sleep 5
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echo "Turn on the Host"
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obmcutil poweron
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fi
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# Deassert SPECIAL_BOOT GPIO PIN if it is being asserted
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if [[ $SPECIAL_BOOT == 1 ]]; then
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# Time out checking for Host ON is 60s
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cnt=12
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while [ "$cnt" -gt 0 ];
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do
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cnt=$((cnt - 1))
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if systemctl status obmc-host-already-on@0.target | grep "Active: active"; then
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echo "Deassert SPECIAL_BOOT GPIO PIN if it is being asserted."
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gpioset $(gpiofind host0-special-boot)=0
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exit 0
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fi
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sleep 5
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done
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fi
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