meta-ampere: remove GPIO fault check

This commit removes scripts to check GPIO fault as they poll GPIOs every
0.25s. Better solution needs to be found for this feature.

Signed-off-by: Thang Q. Nguyen <thang@os.amperecomputing.com>
Change-Id: Ieef28d7d7f74dc43548c5448706ca8dbcb06ec2e

3 files changed, 1 insertions, 354 deletions

diff --git a/meta-ampere/meta-mitchell/recipes-ampere/platform/ampere-fault-monitor.bbappend b/meta-ampere/meta-mitchell/recipes-ampere/platform/ampere-fault-monitor.bbappend
index 2f3e457e38..38cb4c66cf 100644
--- a/meta-ampere/meta-mitchell/recipes-ampere/platform/ampere-fault-monitor.bbappend
+++ b/meta-ampere/meta-mitchell/recipes-ampere/platform/ampere-fault-monitor.bbappend
@@ -4,11 +4,9 @@ RDEPENDS:${PN} = "bash"
 
 SRC_URI += " \
             file://ampere_fault_monitor.sh \
-            file://ampere_check_gpio_fault.sh \
            "
 
 do_install() {
     install -d ${D}/${sbindir}
     install -m 755 ${WORKDIR}/ampere_fault_monitor.sh ${D}/${sbindir}/
-    install -m 755 ${WORKDIR}/ampere_check_gpio_fault.sh ${D}/${sbindir}/
 }
diff --git a/meta-ampere/meta-mitchell/recipes-ampere/platform/ampere-fault-monitor/ampere_check_gpio_fault.sh b/meta-ampere/meta-mitchell/recipes-ampere/platform/ampere-fault-monitor/ampere_check_gpio_fault.sh
deleted file mode 100755
index 9922420b81..0000000000
--- a/meta-ampere/meta-mitchell/recipes-ampere/platform/ampere-fault-monitor/ampere_check_gpio_fault.sh
+++ /dev/null
@@ -1,351 +0,0 @@
-#!/bin/bash
-
-# This script monitors S0/S1 GPIO fault and detects errors from CPUs
-#
-# So far, there is no specification describes the behavior of LED when an error (a pattern is detected) occurs.
-# So when detecting a pattern, we simply set the gpio fault flag and turn on the SYS LED.
-#
-# The Parttern will in the format:
-# <minor_byte> <quite_gap_1second> <major_byte> <stop_condition_low_for_3seconds>
-#
-# Ex: pattern minor_byte=0x03, major_byte=0x02, you will see the waveform like
-# _1010100...(quite gap, low for 1 second)..0111111111000000000111111111110000000000...(stop condition, low for 3 seconds)..
-#
-# Usage: <app_name> <socket 0/1>
-#
-# shellcheck source=/dev/null
-source /usr/sbin/gpio-lib.sh
-
-# global variables
-    error_flag='/tmp/gpio_fault'
-
-    # the command "cat /sys/class/gpio/gpio"$gpio_Id"/value" itself, takes 10ms~35ms to complete, depends on CPU loading
-    polling_minor_byte_rate=0
-    polling_major_byte_rate=200000
-    polling_rate=$polling_minor_byte_rate
-
-    # the mount of low to ensure that already get out of minor_byte and is in quite gap
-    # this value depends on the polling_minor_byte_rate
-    max_low_in_minor_byte=9
-
-    # the mount of low to ensure that already get out of major_byte and is in stop condition
-    # this value depends on the polling_major_byte_rate
-    max_low_in_major_byte=9
-
-    max_low=$max_low_in_minor_byte
-
-    # state machines:
-    # detecting_minor_byte=0
-    # detecting_major_byte=1
-    curr_state=0
-
-    minor_byte=0
-    major_byte=0
-
-    gpio_status=0
-
-    socket=$1
-
-    socket1_present=151
-    socket1_status=1
-
-    S0_fault_gpio='s0-fault-alert'
-    S1_fault_gpio='s1-fault-alert'
-
-map_event_name() {
-    case $major_byte in
-        2)
-            event_major="FAULT_LED_BOOT_ERROR"
-            case $minor_byte in
-                1)
-                    event_minor="SOC_BOOTDEV_INIT_SEC_ERROR"
-                    ;;
-                2)
-                    event_minor="SECJMP_FAIL_ERROR"
-                    ;;
-                3)
-                    event_minor="UART_INIT_WARN"
-                    ;;
-                4)
-                    event_minor="UART_TX_WARN"
-                    ;;
-                5)
-                    event_minor="SOC_ROMPATCH_BAD_ERROR"
-                    ;;
-                6)
-                    event_minor="SOC_ROMPATCH_RANGE_ERROR"
-                    ;;
-                7)
-                    event_minor="SPI_INIT_ERROR"
-                    ;;
-                8)
-                    event_minor="SPI_TX_ERROR"
-                    ;;
-                9)
-                    event_minor="SPINOR_UNKNOW_DEVICE_WARN"
-                    ;;
-                10)
-                    event_minor="EEPROM_BAD_NVP_HEADER_WARN"
-                    ;;
-                11)
-                    event_minor="EEPROM_BAD_NVP_FIELD_WARN"
-                    ;;
-                12)
-                    event_minor="EEPROM_BAD_CHECKSUM_ERROR_WARN"
-                    ;;
-                13)
-                    event_minor="I2C_DMA_ERROR"
-                    ;;
-                14)
-                    event_minor="I2C_TIMEOUT_ERROR"
-                    ;;
-                15)
-                    event_minor="SOC_BOOTDEV_SPI_LOAD_ERROR"
-                    ;;
-                16)
-                    event_minor="SOC_BOOTDEV_AUTHENTICATION_ERROR"
-                    ;;
-                17)
-                    event_minor="PCP_POWERUP_FAILED"
-                    ;;
-                18)
-                    event_minor="PCP_POWERDOWN_FAILED"
-                    ;;
-                19)
-                    event_minor="CPUPLL_INIT_FAILED"
-                    ;;
-                20)
-                    event_minor="MESHPLL_INIT_FAILED"
-                    ;;
-                *)
-                    event_minor="NOT_SUPPORT"
-            esac
-            ;;
-        3)
-            event_major="FAULT_LED_FW_LOAD_ERROR"
-            case $minor_byte in
-                9)
-                    event_minor="LFS_ERROR"
-                    ;;
-                *)
-                    event_minor="NOT_SUPPORT"
-            esac
-            ;;
-        4)
-            event_major="FAULT_LED_SECURITY_ERROR"
-            case $minor_byte in
-                1)
-                    event_minor="SEC_INVALID_KEY_CERT"
-                    ;;
-                2)
-                    event_minor="SEC_INVALID_CONT_CERT"
-                    ;;
-                3)
-                    event_minor="SEC_INVALID_ROOT_KEY"
-                    ;;
-                4)
-                    event_minor="SEC_INVALID_SECPRO_KEY"
-                    ;;
-                5)
-                    event_minor="SEC_INVALID_KEY_CERT_SIG"
-                    ;;
-                6)
-                    event_minor="SEC_INVALID_CONT_CERT_SIG"
-                    ;;
-                7)
-                    event_minor="SEC_INVALID_IMAGE_HASH"
-                    ;;
-                8)
-                    event_minor="SEC_INVALID_PRI_VERSION"
-                    ;;
-                9)
-                    event_minor="SEC_HUK_MISMATCH"
-                    ;;
-                10)
-                    event_minor="SEC_FUSE_BLOW_CERT_WITHOUT_SPECIAL_BOOT_PIN"
-                    ;;
-                11)
-                    event_minor="SEC_INVALID_CERT_SUBTYPE_STRUCT"
-                    ;;
-                12)
-                    event_minor="SEC_TMMCFG_FAIL"
-                    ;;
-                13)
-                    event_minor="SEC_INVALID_LCS_FROM_EFUSE"
-                    ;;
-                14)
-                    event_minor="SEC_EFUSE_WRITE_FAILED"
-                    ;;
-                15)
-                    event_minor="SEC_INVALID_CERT_VALUE"
-                    ;;
-                16)
-                    event_minor="SEC_INVALID_CERT_VERSION"
-                    ;;
-                *)
-                    event_minor="NOT_SUPPORT"
-                    ;;
-            esac
-            ;;
-        5)
-            event_major="FAULT_LED_EXCEPTION_ERROR"
-            case $minor_byte in
-                1)
-                    event_minor="KERNEL_EXCEPTION_UNKNOWN_REASON_ERROR"
-                    ;;
-                2)
-                    event_minor="KERNEL_EXCEPTION_HARD_FAULT_ERROR"
-                    ;;
-                3)
-                    event_minor="KERNEL_EXCEPTION_BUS_FAULT_ERROR"
-                    ;;
-                4)
-                    event_minor="KERNEL_EXCEPTION_MEMMANAGE_FAULT_ERROR"
-                    ;;
-                5)
-                    event_minor="KERNEL_EXCEPTION_USAGE_FAULT_ERROR"
-                    ;;
-                *)
-                    event_minor="NOT_SUPPORT"
-                    ;;
-            esac
-            ;;
-        *)
-            event_major="NOT_SUPPORT"
-            ;;
-    esac
-}
-
-set_unset_gpio_fault_flag() {
-    if [ ! -f $error_flag ] && [ "$1" == 1 ] ; then
-        touch $error_flag
-    elif [ -f $error_flag ] && [ "$1" == 0 ]; then
-        rm $error_flag
-    fi
-}
-
-toggle_state() {
-    if [ "$curr_state" == 0 ]; then
-        curr_state=1
-        polling_rate=$polling_major_byte_rate
-    else
-        curr_state=0
-        polling_rate=$polling_minor_byte_rate
-        map_event_name
-        echo "detected major_byte=$event_major, minor_byte=$event_minor"
-        set_unset_gpio_fault_flag 1
-    fi
-}
-
-save_pulse_of_byte() {
-    if [ "$curr_state" == 0 ]; then
-        minor_byte=$1
-        #echo "minor_byte=$1"
-    else
-        major_byte=$1
-        #echo "major_byte=$1"
-    fi
-}
-
-# we do not care the pulse is 50ms or 500ms, what we care is that the number of high pulses
-cnt_falling_edge_in_byte() {
-    local cnt_falling_edge=0
-    local cnt_low=0
-
-    local prev=0
-    local curr=0
-
-    while true
-    do
-        prev=$curr
-        curr=$gpio_status
-        # count the falling edges, if they occur, just reset cnt_low
-        if [ "$prev" == 1 ] && [ "$curr" == 0 ]; then
-            cnt_falling_edge=$(( cnt_falling_edge + 1 ))
-            cnt_low=0
-            continue
-        # check if we are in the quite gap or stop condition
-        elif [ "$prev" == 0 ] && [ "$curr" == 0 ]; then
-            cnt_low=$(( cnt_low + 1 ))
-            if [ "$cnt_low" == "$max_low" ]; then
-                save_pulse_of_byte "$cnt_falling_edge"
-                toggle_state
-                break
-            fi
-        fi
-        usleep $polling_rate
-        gpio_status=$(cat /sys/class/gpio/gpio"$gpio_Id"/value)
-    done
-}
-
-gpio_config_input() {
-    echo "$gpio_Id" > /sys/class/gpio/export
-    echo "in" > /sys/class/gpio/gpio"${gpio_Id}"/direction
-}
-
-gpio_number() {
-    local offset
-    local gpioPin
-    local str
-
-    str=$(gpiofind "$1")
-    if [ "$?" == '1' ]; then
-        echo -1
-    else
-        gpioid=$(echo "$str"|cut -c 9)
-        offset=$(echo "$str"|cut -d " " -f 2)
-        gpioPin=$(("$offset" + ${AST2600_GPIO_BASE[$gpioid]}))
-        echo "$gpioPin"
-    fi
-}
-
-init_sysfs_fault_gpio() {
-    gpio_Id=$(gpio_number "$fault_gpio")
-    if [ "$gpio_Id" == "-1" ]; then
-        echo "Invalid GPIO number"
-        exit 1
-    fi
-
-    if [ -d /sys/class/gpio/gpio"$gpio_Id" ]; then
-        return
-    fi
-    gpio_config_input "$gpio_Id"
-}
-
-# init
-if [ "$socket" == "0" ]; then
-	fault_gpio="$S0_fault_gpio"
-else
-	socket1_status=$(gpioget 0 "$socket1_present")
-	if [ "$socket1_status" == 1 ]; then
-		echo "socket 1 not present"
-		exit 0
-	fi
-	fault_gpio=$S1_fault_gpio
-fi
-
-init_sysfs_fault_gpio
-
-# daemon start
-while true
-do
-    # detect when pattern starts
-    if [ "$gpio_status" == 1 ]; then
-        if [ "$curr_state" == 0 ]; then
-            # detecting minor byte, set up minor byte variables
-            max_low=$max_low_in_minor_byte
-            polling_rate=$polling_minor_byte_rate
-        else
-            # detecting major byte, set up major byte variables
-            max_low=$max_low_in_major_byte
-            polling_rate=$polling_major_byte_rate
-        fi
-        # now, there is something on gpio, check if that is a byte pattern
-        cnt_falling_edge_in_byte
-    fi
-
-    usleep $polling_rate
-    gpio_status=$(cat /sys/class/gpio/gpio"$gpio_Id"/value)
-done
-
-exit 1
diff --git a/meta-ampere/meta-mitchell/recipes-ampere/platform/ampere-fault-monitor/ampere_fault_monitor.sh b/meta-ampere/meta-mitchell/recipes-ampere/platform/ampere-fault-monitor/ampere_fault_monitor.sh
index e176629dfd..299e13b17d 100644
--- a/meta-ampere/meta-mitchell/recipes-ampere/platform/ampere-fault-monitor/ampere_fault_monitor.sh
+++ b/meta-ampere/meta-mitchell/recipes-ampere/platform/ampere-fault-monitor/ampere_fault_monitor.sh
@@ -2,7 +2,7 @@
 # This script monitors fan, over-temperature, PSU, CPU/SCP failure and update fault LED status
 
 # shellcheck disable=SC2004
-# shellcheck source=/dev/null
+# shellcheck source=meta-ampere/meta-mitchell/recipes-ampere/platform/ampere-platform-init/gpio-lib.sh
 source /usr/sbin/gpio-lib.sh
 
 # common variables