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279 lines
8.1 KiB
Bash
279 lines
8.1 KiB
Bash
#!/bin/bash
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# Copyright 2020 Google LLC
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# Copyright 2020 Quanta Computer Inc.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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# shellcheck source=meta-quanta/meta-gbs/recipes-gbs/gbs-sysinit/files/gbs-gpio-common.sh
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source /usr/libexec/gbs-gpio-common.sh
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WD1RCR_ADDR=0xf080103c
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CORSTC_ADDR=0xf080105c
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BOARD_VER="" # Set by check_board_ver
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pe_eeprom_addr=( 50 54 )
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SERVICE_NAME="xyz.openbmc_project.Inventory.Manager"
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INTERFACE_NAME="xyz.openbmc_project.Inventory.Item"
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PE_PRESENT_OBJPATH=("/xyz/openbmc_project/inventory/system/chassis/entity/pe_slot0_prsnt"
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"/xyz/openbmc_project/inventory/system/chassis/entity/pe_slot1_prsnt")
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SATA0_PRESENT_OBJPATH="/xyz/openbmc_project/inventory/system/chassis/entity/sata0_prsnt"
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set_gpio_persistence() {
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reg_val=$(devmem ${WD1RCR_ADDR} 32)
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# Clear bit 16-23 to perserve all GPIO states across warm resets
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reg_val=$(printf "0x%08x" $((reg_val & ~0xff0000)))
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echo "Setting WD1RCR_ADDR to ${reg_val}"
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devmem "${WD1RCR_ADDR}" 32 "${reg_val}"
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reg_val=$(devmem ${CORSTC_ADDR} 32)
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# Clear bit 16-23 of CORSTC
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reg_val=$(printf "0x%08x" $((reg_val & ~0xff0000)))
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echo "Setting CORSTC_ADDR to ${reg_val}"
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devmem "${CORSTC_ADDR}" 32 "${reg_val}"
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}
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get_board_rev_id() {
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echo "$(get_gpio_value 'BMC_BRD_REV_ID7')"\
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"$(get_gpio_value 'BMC_BRD_REV_ID6')"\
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"$(get_gpio_value 'BMC_BRD_REV_ID5')"\
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"$(get_gpio_value 'BMC_BRD_REV_ID4')"\
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"$(get_gpio_value 'BMC_BRD_REV_ID3')"\
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"$(get_gpio_value 'BMC_BRD_REV_ID2')"\
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"$(get_gpio_value 'BMC_BRD_REV_ID1')"\
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"$(get_gpio_value 'BMC_BRD_REV_ID0')"\
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| sed 's/ //g' > ~/board_rev_id.txt
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}
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get_board_sku_id() {
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echo "$(get_gpio_value 'BMC_BRD_SKU_ID3')"\
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"$(get_gpio_value 'BMC_BRD_SKU_ID2')"\
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"$(get_gpio_value 'BMC_BRD_SKU_ID1')"\
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"$(get_gpio_value 'BMC_BRD_SKU_ID0')"\
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| sed 's/ //g' > ~/board_sku_id.txt
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}
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get_hsbp_board_rev_id() {
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echo "$(get_gpio_value 'HSBP_BRD_REV_ID3')"\
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"$(get_gpio_value 'HSBP_BRD_REV_ID2')"\
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"$(get_gpio_value 'HSBP_BRD_REV_ID1')"\
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"$(get_gpio_value 'HSBP_BRD_REV_ID0')"\
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| sed 's/ //g' > ~/hsbp_board_rev_id.txt
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}
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get_fan_board_rev_id() {
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echo "$(get_gpio_value 'FAN_BRD_REV_ID1')"\
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"$(get_gpio_value 'FAN_BRD_REV_ID0')"\
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| sed 's/ //g' > ~/fan_board_rev_id.txt
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}
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check_board_ver() {
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# Sets BOARD_VER to either "PREPVT" or "PVT"
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#
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# BOARD_REV_ID[7:6] =
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# 0x00 - EVT
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# 0x01 - DVT
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# 0x10 - PVT
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# 0x11 - MP
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rev7_val=$(get_gpio_value 'BMC_BRD_REV_ID7')
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if (( rev7_val == 0 )); then
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echo "EVT/DVT rev!"
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BOARD_VER="PREPVT"
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else
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echo "PVT/MP rev!"
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BOARD_VER="PVT"
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fi
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}
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check_board_sku() {
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sku1_val=$(get_gpio_value 'BMC_BRD_SKU_ID1')
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if (( sku1_val == 1 )); then
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echo "GBS SKU!"
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else
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echo "Other SKU!"
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fi
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}
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set_uart_en_low() {
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# GPIO76 UART_EN polarity inverted between DVT/PVT
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# Pin direction was set high in the kernel.
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set_gpio_direction 'FM_BMC_CPU_UART_EN' low
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}
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set_hdd_prsnt() {
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# On PVT need to forward SATA0_PRSNT_N to HDD_PRSNT_N
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# The signal is safe to set on DVT boards so just set universally.
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mapper wait ${SATA0_PRESENT_OBJPATH}
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sata_prsnt_n="$(busctl get-property $SERVICE_NAME ${SATA0_PRESENT_OBJPATH} \
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$INTERFACE_NAME Present)"
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# sata_prsnt_n is active low => value "true" means low
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if [[ ${sata_prsnt_n} == "b true" ]]; then
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set_gpio_direction 'HDD_PRSNT_N' low
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else
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set_gpio_direction 'HDD_PRSNT_N' high
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fi
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}
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KERNEL_FIU_ID="c0000000.spi"
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KERNEL_SYSFS_FIU="/sys/bus/platform/drivers/NPCM-FIU"
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# the node of FIU is spi for kernel 5.10, but
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# for less than or equal kernel 5.4, the node
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# is fiu
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if ls "$KERNEL_SYSFS_FIU"/*.fiu 1> /dev/null 2>&1; then
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KERNEL_FIU_ID="c0000000.fiu"
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fi
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bind_host_mtd() {
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set_gpio_direction 'SPI_SW_SELECT' high
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if [[ -d ${KERNEL_SYSFS_FIU}/${KERNEL_FIU_ID} ]]; then
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echo "${KERNEL_FIU_ID}" > "${KERNEL_SYSFS_FIU}"/unbind
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fi
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echo "${KERNEL_FIU_ID}" > "${KERNEL_SYSFS_FIU}"/bind
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}
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unbind_host_mtd() {
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if [[ -d ${KERNEL_SYSFS_FIU}/${KERNEL_FIU_ID} ]]; then
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echo "${KERNEL_FIU_ID}" > "${KERNEL_SYSFS_FIU}"/unbind
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fi
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set_gpio_direction 'SPI_SW_SELECT' low
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}
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trap unbind_host_mtd EXIT SIGHUP SIGINT SIGTERM
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# Taken from /run/initramfs/update
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# Given label name, return mtd node. e.g. `findmtd bmc` returns 'mtd0'
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findmtd() {
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m=$(grep -xl "$1" /sys/class/mtd/*/name)
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m=${m%/name}
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m=${m##*/}
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echo "$m"
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}
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verify_host_bios() {
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echo "BIOS verification start!"
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# placeholder for verifying host BIOS. For now time BIOS read
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# with dd
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bind_host_mtd || { echo "Failed to bind FIU driver for host MTD"; return 1; }
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pnor_mtd=$(findmtd pnor)
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[[ -z "${pnor_mtd}" ]] && { echo "Failed to find host MTD partition!"; return 1; }
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# Test timing by computing SHA256SUM.
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sha256sum "/dev/${pnor_mtd}ro"
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echo "BIOS verification complete!"
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unbind_host_mtd
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}
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parse_pe_fru() {
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pe_fruid=3
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for i in {1..2};
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do
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mapper wait "${PE_PRESENT_OBJPATH[$((i-1))]}"
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pe_prsnt_n="$(busctl get-property $SERVICE_NAME "${PE_PRESENT_OBJPATH[$((i-1))]}" \
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$INTERFACE_NAME Present)"
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if [[ ${pe_prsnt_n} == "b false" ]]; then
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pe_fruid=$((pe_fruid+1))
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continue
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fi
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# Output is the i2c bus number for the PCIE cards on PE0/PE1
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# i2c-0 -> i2c mux (addr: 0x71) -> PE0/PE1
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# PE0: channel 0
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# PE1: channel 1
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# shellcheck disable=SC2010
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pe_fru_bus="$(ls -al /sys/bus/i2c/drivers/pca954x/0-0071/ | grep channel \
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| awk -F "/" '{print $(NF)}' | awk -F "-" '{print $2}' | sed -n "${i}p")"
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# If the PE FRU EEPROM syspath does not exist, create it ("24c02" is the
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# EEPROM part number) and perform a phosphor-read-eeprom
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for ((j=0; j < ${#pe_eeprom_addr[@]}; j++));
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do
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if i2cget -f -y "$pe_fru_bus" "0x${pe_eeprom_addr[$j]}" 0x01 > /dev/null 2>&1 ; then
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if [ ! -f "/sys/bus/i2c/devices/$pe_fru_bus-00${pe_eeprom_addr[$j]}/eeprom" ]; then
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echo 24c02 "0x${pe_eeprom_addr[$j]}" > "/sys/bus/i2c/devices/i2c-$pe_fru_bus/new_device"
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fi
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pe_fru_bus="/sys/bus/i2c/devices/$pe_fru_bus-00${pe_eeprom_addr[$j]}/eeprom"
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phosphor-read-eeprom --eeprom "$pe_fru_bus" --fruid $pe_fruid
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break
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fi
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done
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pe_fruid=$((pe_fruid+1))
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done
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}
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check_power_status() {
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res0="$(busctl get-property -j xyz.openbmc_project.State.Chassis \
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/xyz/openbmc_project/state/chassis0 xyz.openbmc_project.State.Chassis \
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CurrentPowerState | jq -r '.["data"]')"
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echo "$res0"
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}
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clk_buf_bus_switch="11-0076"
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clk_buf_driver="/sys/bus/i2c/drivers/pca954x/"
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bind_clk_buf_switch() {
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echo "Re-bind i2c bus 11 clk_buf_switch"
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echo "${clk_buf_bus_switch}" > "${clk_buf_driver}"/bind
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}
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main() {
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get_board_rev_id
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get_board_sku_id
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get_hsbp_board_rev_id
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get_fan_board_rev_id
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check_board_ver
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if [[ "${BOARD_VER}" == "PREPVT" ]]; then
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set_uart_en_low
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fi
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check_board_sku
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if [[ $(check_power_status) != \
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'xyz.openbmc_project.State.Chassis.PowerState.On' ]]; then
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verify_host_bios
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echo "Release host from reset!" >&2
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set_gpio_direction 'RST_BMC_RSMRST_N' high
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set_gpio_direction 'RST_KBRST_BMC_CPLD_N' high
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# TODO: remove the hack once kernel driver is ready
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# Set the GPIO states to preserve across reboots
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set_gpio_persistence
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echo "Starting host power!" >&2
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busctl set-property xyz.openbmc_project.State.Host \
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/xyz/openbmc_project/state/host0 \
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xyz.openbmc_project.State.Host \
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RequestedHostTransition s \
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xyz.openbmc_project.State.Host.Transition.On
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sleep 1
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bind_clk_buf_switch
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else
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echo "Host is already running, doing nothing!" >&2
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fi
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set_hdd_prsnt
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parse_pe_fru
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}
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# Exit without running main() if sourced
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if ! (return 0 2>/dev/null) ; then
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main "$@"
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fi
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