Merge pull request #26 from ccrisan/board-raspberrypi4

Add Raspberry Pi 4 support

board/raspberrypi/overlay/lib/firmware/brcm/brcmfmac43430-sdio.txt

@@ -0,0 +1,64 @@
+# NVRAM file for BCM943430WLSELG
+# 2.4 GHz, 20 MHz BW mode
+
+# The following parameter values are just placeholders, need to be updated.
+manfid=0x2d0
+prodid=0x0726
+vendid=0x14e4
+devid=0x43e2
+boardtype=0x0726
+boardrev=0x1202
+boardnum=22
+macaddr=00:90:4c:c5:12:38
+sromrev=11
+boardflags=0x00404201
+boardflags3=0x08000000
+xtalfreq=37400
+#xtalfreq=19200
+nocrc=1
+ag0=255
+aa2g=1
+ccode=ALL
+
+pa0itssit=0x20
+extpagain2g=0
+
+#PA parameters for 2.4GHz, measured at CHIP OUTPUT
+pa2ga0=-168,7161,-820
+AvVmid_c0=0x0,0xc8
+cckpwroffset0=5
+
+# PPR params
+maxp2ga0=84
+txpwrbckof=6
+cckbw202gpo=0
+legofdmbw202gpo=0x66111111
+mcsbw202gpo=0x77711111
+propbw202gpo=0xdd
+
+# OFDM IIR :
+ofdmdigfilttype=18
+ofdmdigfilttypebe=18
+# PAPD mode:
+papdmode=1
+papdvalidtest=1
+pacalidx2g=32
+papdepsoffset=-36
+papdendidx=61
+
+il0macaddr=00:90:4c:c5:12:38
+wl0id=0x431b
+
+deadman_to=0xffffffff
+# muxenab: 0x1 for UART enable, 0x2 for GPIOs, 0x8 for JTAG
+muxenab=0x1
+# CLDO PWM voltage settings - 0x4 - 1.1 volt
+#cldo_pwm=0x4
+
+#VCO freq 326.4MHz
+spurconfig=0x3 
+
+# Improved Bluetooth coexistence parameters from Cypress
+btc_mode=1
+btc_params8=0x4e20
+btc_params1=0x7530

board/raspberrypi/overlay/lib/firmware/brcm/brcmfmac43455-sdio.txt

@@ -0,0 +1,97 @@
+# Cloned from bcm94345wlpagb_p2xx.txt 
+NVRAMRev=$Rev: 498373 $
+sromrev=11
+vendid=0x14e4
+devid=0x43ab
+manfid=0x2d0
+prodid=0x06e4
+#macaddr=00:90:4c:c5:12:38
+macaddr=b8:27:eb:74:f2:6c
+nocrc=1
+boardtype=0x6e4
+boardrev=0x1304
+
+#XTAL 37.4MHz
+xtalfreq=37400
+
+btc_mode=1
+#------------------------------------------------------
+#boardflags: 5GHz eTR switch by default
+#            2.4GHz eTR switch by default
+#            bit1 for btcoex
+boardflags=0x00480201
+boardflags2=0x40800000
+boardflags3=0x44200100
+phycal_tempdelta=15
+rxchain=1
+txchain=1
+aa2g=1
+aa5g=1
+tssipos5g=1
+tssipos2g=1
+femctrl=0
+AvVmid_c0=1,165,2,100,2,100,2,100,2,100
+pa2ga0=-129,6525,-718
+pa2ga1=-149,4408,-601
+pa5ga0=-185,6836,-815,-186,6838,-815,-184,6859,-815,-184,6882,-818
+pa5ga1=-202,4285,-574,-201,4312,-578,-196,4391,-586,-201,4294,-575
+itrsw=1
+pdoffsetcckma0=2
+pdoffset2gperchan=0,-2,1,0,1,0,1,1,1,0,0,-1,-1,0
+pdoffset2g40ma0=16
+pdoffset40ma0=0x8888
+pdoffset80ma0=0x8888
+extpagain5g=2
+extpagain2g=2
+tworangetssi2g=1
+tworangetssi5g=1
+# LTECX flags
+# WCI2
+ltecxmux=0
+ltecxpadnum=0x0504
+ltecxfnsel=0x22
+ltecxgcigpio=0x32
+
+maxp2ga0=80
+ofdmlrbw202gpo=0x0022
+dot11agofdmhrbw202gpo=0x4442
+mcsbw202gpo=0x98444422
+mcsbw402gpo=0x98444422
+maxp5ga0=82,82,82,82
+mcsbw205glpo=0xb9555000
+mcsbw205gmpo=0xb9555000
+mcsbw205ghpo=0xb9555000
+mcsbw405glpo=0xb9555000
+mcsbw405gmpo=0xb9555000
+mcsbw405ghpo=0xb9555000
+mcsbw805glpo=0xb9555000
+mcsbw805gmpo=0xb9555000
+mcsbw805ghpo=0xb9555000
+
+swctrlmap_2g=0x00000000,0x00000000,0x00000000,0x010000,0x3ff
+swctrlmap_5g=0x00100010,0x00200020,0x00200020,0x010000,0x3fe
+swctrlmapext_5g=0x00000000,0x00000000,0x00000000,0x000000,0x3
+swctrlmapext_2g=0x00000000,0x00000000,0x00000000,0x000000,0x3
+
+vcodivmode=1
+deadman_to=481500000
+
+ed_thresh2g=-54
+ed_thresh5g=-54
+eu_edthresh2g=-54
+eu_edthresh5g=-54
+ldo1=4
+rawtempsense=0x1ff
+cckPwrIdxCorr=3
+cckTssiDelay=150
+ofdmTssiDelay=150
+txpwr2gAdcScale=1
+txpwr5gAdcScale=1
+dot11b_opts=0x3aa85
+cbfilttype=1
+fdsslevel_ch11=6
+
+# Improved Bluetooth coexistence parameters from Cypress
+btc_mode=1
+btc_params8=0x4e20
+btc_params1=0x7530

board/raspberrypi3/overlay/lib/firmware/brcm/brcmfmac43430-sdio.txt

@@ -0,0 +1,64 @@
+# NVRAM file for BCM943430WLSELG
+# 2.4 GHz, 20 MHz BW mode
+
+# The following parameter values are just placeholders, need to be updated.
+manfid=0x2d0
+prodid=0x0726
+vendid=0x14e4
+devid=0x43e2
+boardtype=0x0726
+boardrev=0x1202
+boardnum=22
+macaddr=00:90:4c:c5:12:38
+sromrev=11
+boardflags=0x00404201
+boardflags3=0x08000000
+xtalfreq=37400
+#xtalfreq=19200
+nocrc=1
+ag0=255
+aa2g=1
+ccode=ALL
+
+pa0itssit=0x20
+extpagain2g=0
+
+#PA parameters for 2.4GHz, measured at CHIP OUTPUT
+pa2ga0=-168,7161,-820
+AvVmid_c0=0x0,0xc8
+cckpwroffset0=5
+
+# PPR params
+maxp2ga0=84
+txpwrbckof=6
+cckbw202gpo=0
+legofdmbw202gpo=0x66111111
+mcsbw202gpo=0x77711111
+propbw202gpo=0xdd
+
+# OFDM IIR :
+ofdmdigfilttype=18
+ofdmdigfilttypebe=18
+# PAPD mode:
+papdmode=1
+papdvalidtest=1
+pacalidx2g=32
+papdepsoffset=-36
+papdendidx=61
+
+il0macaddr=00:90:4c:c5:12:38
+wl0id=0x431b
+
+deadman_to=0xffffffff
+# muxenab: 0x1 for UART enable, 0x2 for GPIOs, 0x8 for JTAG
+muxenab=0x1
+# CLDO PWM voltage settings - 0x4 - 1.1 volt
+#cldo_pwm=0x4
+
+#VCO freq 326.4MHz
+spurconfig=0x3 
+
+# Improved Bluetooth coexistence parameters from Cypress
+btc_mode=1
+btc_params8=0x4e20
+btc_params1=0x7530

board/raspberrypi3/overlay/lib/firmware/brcm/brcmfmac43455-sdio.txt

@@ -0,0 +1,97 @@
+# Cloned from bcm94345wlpagb_p2xx.txt 
+NVRAMRev=$Rev: 498373 $
+sromrev=11
+vendid=0x14e4
+devid=0x43ab
+manfid=0x2d0
+prodid=0x06e4
+#macaddr=00:90:4c:c5:12:38
+macaddr=b8:27:eb:74:f2:6c
+nocrc=1
+boardtype=0x6e4
+boardrev=0x1304
+
+#XTAL 37.4MHz
+xtalfreq=37400
+
+btc_mode=1
+#------------------------------------------------------
+#boardflags: 5GHz eTR switch by default
+#            2.4GHz eTR switch by default
+#            bit1 for btcoex
+boardflags=0x00480201
+boardflags2=0x40800000
+boardflags3=0x44200100
+phycal_tempdelta=15
+rxchain=1
+txchain=1
+aa2g=1
+aa5g=1
+tssipos5g=1
+tssipos2g=1
+femctrl=0
+AvVmid_c0=1,165,2,100,2,100,2,100,2,100
+pa2ga0=-129,6525,-718
+pa2ga1=-149,4408,-601
+pa5ga0=-185,6836,-815,-186,6838,-815,-184,6859,-815,-184,6882,-818
+pa5ga1=-202,4285,-574,-201,4312,-578,-196,4391,-586,-201,4294,-575
+itrsw=1
+pdoffsetcckma0=2
+pdoffset2gperchan=0,-2,1,0,1,0,1,1,1,0,0,-1,-1,0
+pdoffset2g40ma0=16
+pdoffset40ma0=0x8888
+pdoffset80ma0=0x8888
+extpagain5g=2
+extpagain2g=2
+tworangetssi2g=1
+tworangetssi5g=1
+# LTECX flags
+# WCI2
+ltecxmux=0
+ltecxpadnum=0x0504
+ltecxfnsel=0x22
+ltecxgcigpio=0x32
+
+maxp2ga0=80
+ofdmlrbw202gpo=0x0022
+dot11agofdmhrbw202gpo=0x4442
+mcsbw202gpo=0x98444422
+mcsbw402gpo=0x98444422
+maxp5ga0=82,82,82,82
+mcsbw205glpo=0xb9555000
+mcsbw205gmpo=0xb9555000
+mcsbw205ghpo=0xb9555000
+mcsbw405glpo=0xb9555000
+mcsbw405gmpo=0xb9555000
+mcsbw405ghpo=0xb9555000
+mcsbw805glpo=0xb9555000
+mcsbw805gmpo=0xb9555000
+mcsbw805ghpo=0xb9555000
+
+swctrlmap_2g=0x00000000,0x00000000,0x00000000,0x010000,0x3ff
+swctrlmap_5g=0x00100010,0x00200020,0x00200020,0x010000,0x3fe
+swctrlmapext_5g=0x00000000,0x00000000,0x00000000,0x000000,0x3
+swctrlmapext_2g=0x00000000,0x00000000,0x00000000,0x000000,0x3
+
+vcodivmode=1
+deadman_to=481500000
+
+ed_thresh2g=-54
+ed_thresh5g=-54
+eu_edthresh2g=-54
+eu_edthresh5g=-54
+ldo1=4
+rawtempsense=0x1ff
+cckPwrIdxCorr=3
+cckTssiDelay=150
+ofdmTssiDelay=150
+txpwr2gAdcScale=1
+txpwr5gAdcScale=1
+dot11b_opts=0x3aa85
+cbfilttype=1
+fdsslevel_ch11=6
+
+# Improved Bluetooth coexistence parameters from Cypress
+btc_mode=1
+btc_params8=0x4e20
+btc_params1=0x7530

board/raspberrypi4/cleanups.sh

@@ -0,0 +1 @@
+../raspberrypi/cleanups.sh

board/raspberrypi4/cmdline.txt

@@ -0,0 +1 @@
+dwc_otg.fiq_fix_enable=1 console=tty1 root=/dev/mmcblk0p2 rootfstype=ext4 rootwait ro rootflags=noload panic=10 quiet loglevel=1 ipv6.disable=1

board/raspberrypi4/config.txt

@@ -0,0 +1,7 @@
+gpu_mem=128
+
+dtparam=i2c_arm=on
+dtparam=i2s=on
+dtparam=spi=on
+dtparam=audio=on
+

board/raspberrypi4/cpinitramfs.sh

@@ -0,0 +1 @@
+../raspberrypi/cpinitramfs.sh

board/raspberrypi4/mkimage.sh

@@ -0,0 +1 @@
+../raspberrypi/mkimage.sh

board/raspberrypi4/overlay/etc/board

@@ -0,0 +1 @@
+raspberrypi4

board/raspberrypi4/overlay/etc/init.d/S05cpufreq

@@ -0,0 +1,37 @@
+#!/bin/bash
+
+GOV="ondemand"
+CPUFREQDIR="/sys/devices/system/cpu/cpu0/cpufreq"
+GOVDIR="/sys/devices/system/cpu/cpufreq/${GOV}"
+
+
+test -n "${OS_VERSION}" || source /etc/init.d/base
+
+configure() {
+    echo ${GOV} > ${CPUFREQDIR}/scaling_governor
+    if [[ ${GOV} == "ondemand" ]]; then
+        echo 50 > ${GOVDIR}/up_threshold
+        echo 100000 > ${GOVDIR}/sampling_rate
+        echo 50 > ${GOVDIR}/sampling_down_factor
+        echo 1 > ${GOVDIR}/io_is_busy
+    fi
+}
+
+case "$1" in
+    start)
+        msg_begin "Configuring CPU frequency"
+        configure
+        test $? == 0 && msg_done || msg_fail
+        ;;
+
+    stop)
+        true
+        ;;
+
+    *)
+        echo $"Usage: $0 {start}"
+        exit 1
+esac
+
+exit $?
+

board/raspberrypi4/overlay/etc/init.d/S11throttlewatch

@@ -0,0 +1,65 @@
+#!/bin/bash
+
+CHECK_INTERVAL=30
+
+
+test -n "${OS_VERSION}" || source /etc/init.d/base
+
+get_throttled_now() {
+    t=$(vcgencmd get_throttled | cut -d '=' -f 2)
+    test $((t & 1)) -ne 0 && echo -n "under-voltage "
+    test $((t & 2)) -ne 0 && echo -n "arm-frequency-capped "
+    test $((t & 4)) -ne 0 && echo -n "throttled "
+}
+
+get_throttled_since_boot() {
+    t=$(vcgencmd get_throttled | cut -d '=' -f 2)
+    test $((t &  65536)) -ne 0 && echo -n "under-voltage "
+    test $((t & 131072)) -ne 0 && echo -n "arm-frequency-capped "
+    test $((t & 262144)) -ne 0 && echo -n "throttled "
+}
+
+watch_now() {
+    while true; do
+        t=$(get_throttled_now)
+        if [[ -n "${t}" ]]; then
+            logger -t throttlewatch -s "currently: ${t}"
+        fi
+
+        sleep ${CHECK_INTERVAL}
+    done
+}
+
+watch_since_boot() {
+    while true; do
+        t=$(get_throttled_since_boot)
+        if [[ -n "${t}" ]]; then
+            logger -t throttlewatch -s "since boot: ${t}"
+            break
+        fi
+        
+        sleep ${CHECK_INTERVAL}
+    done
+}
+
+case "$1" in
+    start)
+        msg_begin "Starting throttle watcher"
+        watch_now &
+        watch_since_boot &
+        test $? == 0 && msg_done || msg_fail
+        ;;
+
+    stop)
+        msg_begin "Stopping throttle watcher"
+        ps | grep throttlewatch | grep -v $$ | grep -v grep | tr -s ' ' | sed -e 's/^\s//' | cut -d ' ' -f 1 | xargs -r kill
+        test $? == 0 && msg_done || msg_fail
+        ;;
+
+    *)
+        echo $"Usage: $0 {start|stop}"
+        exit 1
+esac
+
+exit $?
+

board/raspberrypi4/overlay/etc/init.d/S13btuart

@@ -0,0 +1,46 @@
+#!/bin/bash
+
+SYS_CONF="/etc/bluetooth.conf"
+BOOT_CONF="/boot/bluetooth.conf"
+CONF="/data/etc/bluetooth.conf"
+
+
+test -f ${CONF} || test -f ${BOOT_CONF} || test -f ${SYS_CONF} || exit 0
+
+test -d "/proc/device-tree/soc/gpio@7e200000/uart0_pins" || exit 0  # no rpi bluetooth detected
+
+test -n "${OS_VERSION}" || source /etc/init.d/base
+
+function start() {
+    if [[ "$(cat /proc/device-tree/aliases/uart0)" = "$(cat /proc/device-tree/aliases/serial1)" ]] ; then
+        if [[ "$(wc -c /proc/device-tree/soc/gpio@7e200000/uart0_pins/brcm\,pins | cut -f 1 -d ' ')" = " 16" ]] ; then
+	        /usr/bin/hciattach -t5 /dev/serial1 bcm43xx 3000000 flow - &>/dev/null
+        else
+	        /usr/bin/hciattach -t5 /dev/serial1 bcm43xx 921600 noflow - &>/dev/null
+        fi
+    else
+        /usr/bin/hciattach -t5 /dev/serial1 bcm43xx 460800 noflow - &>/dev/null
+    fi
+}
+
+case "$1" in
+    start)
+        msg_begin "Attaching UART bluetooth modem"
+        # for some reason, sometimes the hciattach command needs to be run twice
+        (start || start) &>/dev/null &
+        msg_background
+        ;;
+
+    stop)
+        msg_begin "Detaching UART bluetooth modem"
+        killall hciattach &>/dev/null
+        test $? == 0 && msg_done || msg_fail
+        ;;
+
+    *)
+        echo $"Usage: $0 {start}"
+        exit 1
+esac
+
+exit $?
+

board/raspberrypi4/overlay/etc/init.d/boardsn

@@ -0,0 +1,5 @@
+#!/bin/bash
+
+sn=$(cat /proc/cpuinfo | grep Serial | tr -d ' ' | cut -d ':' -f 2)
+echo ${sn: -8}
+

board/raspberrypi4/overlay/etc/ld.so.preload

@@ -0,0 +1 @@
+/usr/lib/libarmmem.so

board/raspberrypi4/overlay/etc/modprobe.d/blacklist-rtl8192cu.conf

@@ -0,0 +1 @@
+blacklist rtl8192cu

board/raspberrypi4/overlay/etc/modules

@@ -0,0 +1,3 @@
+i2c-bcm2708
+i2c-dev
+

board/raspberrypi4/overlay/etc/udev/rules.d/99-com.rules

@@ -0,0 +1,32 @@
+SUBSYSTEM=="input", GROUP="input", MODE="0660"
+SUBSYSTEM=="i2c-dev", GROUP="i2c", MODE="0660"
+SUBSYSTEM=="spidev", GROUP="spi", MODE="0660"
+SUBSYSTEM=="bcm2835-gpiomem", GROUP="gpio", MODE="0660"
+
+SUBSYSTEM=="gpio*", PROGRAM="/bin/sh -c '\
+	chown -R root:gpio /sys/class/gpio && chmod -R 770 /sys/class/gpio;\
+	chown -R root:gpio /sys/devices/virtual/gpio && chmod -R 770 /sys/devices/virtual/gpio;\
+	chown -R root:gpio /sys$devpath && chmod -R 770 /sys$devpath\
+'"
+
+KERNEL=="ttyAMA[01]", PROGRAM="/bin/sh -c '\
+	ALIASES=/proc/device-tree/aliases; \
+	if cmp -s $ALIASES/uart0 $ALIASES/serial0; then \
+		echo 0;\
+	elif cmp -s $ALIASES/uart0 $ALIASES/serial1; then \
+		echo 1; \
+	else \
+		exit 1; \
+	fi\
+'", SYMLINK+="serial%c"
+
+KERNEL=="ttyS0", PROGRAM="/bin/sh -c '\
+	ALIASES=/proc/device-tree/aliases; \
+	if cmp -s $ALIASES/uart1 $ALIASES/serial0; then \
+		echo 0; \
+	elif cmp -s $ALIASES/uart1 $ALIASES/serial1; then \
+		echo 1; \
+	else \
+		exit 1; \
+	fi \
+'", SYMLINK+="serial%c"

board/raspberrypi4/overlay/lib/firmware/brcm/brcmfmac43430-sdio.txt

@@ -0,0 +1,64 @@
+# NVRAM file for BCM943430WLSELG
+# 2.4 GHz, 20 MHz BW mode
+
+# The following parameter values are just placeholders, need to be updated.
+manfid=0x2d0
+prodid=0x0726
+vendid=0x14e4
+devid=0x43e2
+boardtype=0x0726
+boardrev=0x1202
+boardnum=22
+macaddr=00:90:4c:c5:12:38
+sromrev=11
+boardflags=0x00404201
+boardflags3=0x08000000
+xtalfreq=37400
+#xtalfreq=19200
+nocrc=1
+ag0=255
+aa2g=1
+ccode=ALL
+
+pa0itssit=0x20
+extpagain2g=0
+
+#PA parameters for 2.4GHz, measured at CHIP OUTPUT
+pa2ga0=-168,7161,-820
+AvVmid_c0=0x0,0xc8
+cckpwroffset0=5
+
+# PPR params
+maxp2ga0=84
+txpwrbckof=6
+cckbw202gpo=0
+legofdmbw202gpo=0x66111111
+mcsbw202gpo=0x77711111
+propbw202gpo=0xdd
+
+# OFDM IIR :
+ofdmdigfilttype=18
+ofdmdigfilttypebe=18
+# PAPD mode:
+papdmode=1
+papdvalidtest=1
+pacalidx2g=32
+papdepsoffset=-36
+papdendidx=61
+
+il0macaddr=00:90:4c:c5:12:38
+wl0id=0x431b
+
+deadman_to=0xffffffff
+# muxenab: 0x1 for UART enable, 0x2 for GPIOs, 0x8 for JTAG
+muxenab=0x1
+# CLDO PWM voltage settings - 0x4 - 1.1 volt
+#cldo_pwm=0x4
+
+#VCO freq 326.4MHz
+spurconfig=0x3 
+
+# Improved Bluetooth coexistence parameters from Cypress
+btc_mode=1
+btc_params8=0x4e20
+btc_params1=0x7530

board/raspberrypi4/overlay/lib/firmware/brcm/brcmfmac43455-sdio.txt

@@ -0,0 +1,97 @@
+# Cloned from bcm94345wlpagb_p2xx.txt 
+NVRAMRev=$Rev: 498373 $
+sromrev=11
+vendid=0x14e4
+devid=0x43ab
+manfid=0x2d0
+prodid=0x06e4
+#macaddr=00:90:4c:c5:12:38
+macaddr=b8:27:eb:74:f2:6c
+nocrc=1
+boardtype=0x6e4
+boardrev=0x1304
+
+#XTAL 37.4MHz
+xtalfreq=37400
+
+btc_mode=1
+#------------------------------------------------------
+#boardflags: 5GHz eTR switch by default
+#            2.4GHz eTR switch by default
+#            bit1 for btcoex
+boardflags=0x00480201
+boardflags2=0x40800000
+boardflags3=0x44200100
+phycal_tempdelta=15
+rxchain=1
+txchain=1
+aa2g=1
+aa5g=1
+tssipos5g=1
+tssipos2g=1
+femctrl=0
+AvVmid_c0=1,165,2,100,2,100,2,100,2,100
+pa2ga0=-129,6525,-718
+pa2ga1=-149,4408,-601
+pa5ga0=-185,6836,-815,-186,6838,-815,-184,6859,-815,-184,6882,-818
+pa5ga1=-202,4285,-574,-201,4312,-578,-196,4391,-586,-201,4294,-575
+itrsw=1
+pdoffsetcckma0=2
+pdoffset2gperchan=0,-2,1,0,1,0,1,1,1,0,0,-1,-1,0
+pdoffset2g40ma0=16
+pdoffset40ma0=0x8888
+pdoffset80ma0=0x8888
+extpagain5g=2
+extpagain2g=2
+tworangetssi2g=1
+tworangetssi5g=1
+# LTECX flags
+# WCI2
+ltecxmux=0
+ltecxpadnum=0x0504
+ltecxfnsel=0x22
+ltecxgcigpio=0x32
+
+maxp2ga0=80
+ofdmlrbw202gpo=0x0022
+dot11agofdmhrbw202gpo=0x4442
+mcsbw202gpo=0x98444422
+mcsbw402gpo=0x98444422
+maxp5ga0=82,82,82,82
+mcsbw205glpo=0xb9555000
+mcsbw205gmpo=0xb9555000
+mcsbw205ghpo=0xb9555000
+mcsbw405glpo=0xb9555000
+mcsbw405gmpo=0xb9555000
+mcsbw405ghpo=0xb9555000
+mcsbw805glpo=0xb9555000
+mcsbw805gmpo=0xb9555000
+mcsbw805ghpo=0xb9555000
+
+swctrlmap_2g=0x00000000,0x00000000,0x00000000,0x010000,0x3ff
+swctrlmap_5g=0x00100010,0x00200020,0x00200020,0x010000,0x3fe
+swctrlmapext_5g=0x00000000,0x00000000,0x00000000,0x000000,0x3
+swctrlmapext_2g=0x00000000,0x00000000,0x00000000,0x000000,0x3
+
+vcodivmode=1
+deadman_to=481500000
+
+ed_thresh2g=-54
+ed_thresh5g=-54
+eu_edthresh2g=-54
+eu_edthresh5g=-54
+ldo1=4
+rawtempsense=0x1ff
+cckPwrIdxCorr=3
+cckTssiDelay=150
+ofdmTssiDelay=150
+txpwr2gAdcScale=1
+txpwr5gAdcScale=1
+dot11b_opts=0x3aa85
+cbfilttype=1
+fdsslevel_ch11=6
+
+# Improved Bluetooth coexistence parameters from Cypress
+btc_mode=1
+btc_params8=0x4e20
+btc_params1=0x7530

board/raspberrypi4/overlay/usr/libexec/fw-prepare-boot

@@ -0,0 +1,5 @@
+#!/bin/bash
+
+echo >> /boot/config.txt
+echo "initramfs initrd.gz" >> /boot/config.txt
+

board/raspberrypi4/overlay/usr/libexec/fw-restore-boot-cfg

@@ -0,0 +1,10 @@
+#!/bin/bash
+
+if [ -z "$1" ]; then
+    echo "Usage: $0 <old_boot>" 1>&2
+    exit -1
+fi
+
+old_boot=$1
+cp ${old_boot}/config.txt /boot
+

board/raspberrypi4/postscript.sh

@@ -0,0 +1,14 @@
+#!/bin/sh
+
+set -e
+
+RPI_FW_DIR=${TARGET}/../images/rpi-firmware
+
+cp ${BOARD_DIR}/config.txt ${BOOT_DIR}
+cp ${BOARD_DIR}/cmdline.txt ${BOOT_DIR}
+cp ${BOARD_DIR}/initrd.gz ${BOOT_DIR}
+cp ${IMG_DIR}/zImage ${BOOT_DIR}/kernel.img
+cp ${IMG_DIR}/bcm2711-rpi-4-b.dtb ${BOOT_DIR}
+cp ${RPI_FW_DIR}/bootcode.bin ${BOOT_DIR}
+cp ${RPI_FW_DIR}/start4.elf ${BOOT_DIR}
+cp ${RPI_FW_DIR}/fixup4.dat ${BOOT_DIR}

configs/raspberrypi4_defconfig

@@ -0,0 +1,80 @@
+BR2_arm=y
+BR2_cortex_a7=y
+BR2_ARM_FPU_NEON_VFPV4=y
+BR2_CCACHE=y
+BR2_CCACHE_DIR="$(TOPDIR)/.buildroot-ccache-raspberrypi4"
+BR2_OPTIMIZE_2=y
+BR2_TOOLCHAIN_EXTERNAL=y
+BR2_TARGET_OPTIMIZATION="-pipe"
+BR2_ROOTFS_DEVICE_CREATION_DYNAMIC_EUDEV=y
+BR2_TARGET_TZ_INFO=y
+BR2_ROOTFS_OVERLAY="board/common/overlay board/raspberrypi4/overlay"
+BR2_ROOTFS_POST_BUILD_SCRIPT="board/common/postscript.sh"
+BR2_LINUX_KERNEL=y
+BR2_LINUX_KERNEL_CUSTOM_TARBALL=y
+BR2_LINUX_KERNEL_CUSTOM_TARBALL_LOCATION="https://github.com/raspberrypi/linux/archive/6e787b87ace9f945f17a9022288e2758ed281cf7.tar.gz"
+BR2_LINUX_KERNEL_DEFCONFIG="bcm2711"
+BR2_LINUX_KERNEL_DTS_SUPPORT=y
+BR2_LINUX_KERNEL_INTREE_DTS_NAME="bcm2711-rpi-4-b"
+BR2_PACKAGE_BUSYBOX_CONFIG="board/common/busybox.config"
+BR2_PACKAGE_BUSYBOX_SHOW_OTHERS=y
+BR2_PACKAGE_ALSA_UTILS=y
+BR2_PACKAGE_ALSA_UTILS_APLAY=y
+BR2_PACKAGE_GZIP=y
+BR2_PACKAGE_JQ=y
+BR2_PACKAGE_E2FSPROGS=y
+BR2_PACKAGE_NTFS_3G=y
+BR2_PACKAGE_B43_FIRMWARE=y
+BR2_PACKAGE_LINUX_FIRMWARE=y
+BR2_PACKAGE_LINUX_FIRMWARE_ATHEROS_7010=y
+BR2_PACKAGE_LINUX_FIRMWARE_ATHEROS_9170=y
+BR2_PACKAGE_LINUX_FIRMWARE_ATHEROS_9271=y
+BR2_PACKAGE_LINUX_FIRMWARE_BRCM_BCM43XX=y
+BR2_PACKAGE_LINUX_FIRMWARE_BRCM_BCM43XXX=y
+BR2_PACKAGE_LINUX_FIRMWARE_MWIFIEX_USB8797=y
+BR2_PACKAGE_LINUX_FIRMWARE_MWIFIEX_USB8897=y
+BR2_PACKAGE_LINUX_FIRMWARE_MEDIATEK_MT7601U=y
+BR2_PACKAGE_LINUX_FIRMWARE_RALINK_RT61=y
+BR2_PACKAGE_LINUX_FIRMWARE_RALINK_RT73=y
+BR2_PACKAGE_LINUX_FIRMWARE_RALINK_RT2XX=y
+BR2_PACKAGE_LINUX_FIRMWARE_RTL_81XX=y
+BR2_PACKAGE_LINUX_FIRMWARE_RTL_87XX=y
+BR2_PACKAGE_LINUX_FIRMWARE_RTL_88XX=y
+BR2_PACKAGE_RPI_FIRMWARE=y
+BR2_PACKAGE_RPI_FIRMWARE_X=y
+BR2_PACKAGE_RPI_ARMMEM=y
+BR2_PACKAGE_RPI_USERLAND=y
+BR2_PACKAGE_USB_MODESWITCH_DATA=y
+BR2_PACKAGE_CA_CERTIFICATES=y
+BR2_PACKAGE_LIBSSH2=y
+BR2_PACKAGE_LIBFUSE=y
+BR2_PACKAGE_LIBCURL=y
+BR2_PACKAGE_CURL=y
+BR2_PACKAGE_LIBCAP=y
+BR2_PACKAGE_PCRE=y
+BR2_PACKAGE_PCRE_UCP=y
+BR2_PACKAGE_AUTOSSH=y
+BR2_PACKAGE_CRDA=y
+BR2_PACKAGE_DHCP=y
+BR2_PACKAGE_DHCP_CLIENT=y
+# BR2_PACKAGE_IFUPDOWN_SCRIPTS is not set
+BR2_PACKAGE_IPTABLES=y
+BR2_PACKAGE_IW=y
+BR2_PACKAGE_NETCAT=y
+BR2_PACKAGE_NET_TOOLS=y
+BR2_PACKAGE_NTP=y
+BR2_PACKAGE_NTP_NTPDATE=y
+BR2_PACKAGE_OPENSSH=y
+BR2_PACKAGE_PPPD=y
+BR2_PACKAGE_WIRELESS_TOOLS=y
+BR2_PACKAGE_WPA_SUPPLICANT=y
+BR2_PACKAGE_WPA_SUPPLICANT_AUTOSCAN=y
+BR2_PACKAGE_WPA_SUPPLICANT_EAP=y
+BR2_PACKAGE_WPA_SUPPLICANT_WPS=y
+BR2_PACKAGE_WPA_SUPPLICANT_CLI=y
+BR2_PACKAGE_BASH=y
+BR2_PACKAGE_LOGROTATE=y
+BR2_PACKAGE_TAR=y
+BR2_PACKAGE_UTIL_LINUX_BINARIES=y
+BR2_PACKAGE_UTIL_LINUX_PARTX=y
+BR2_PACKAGE_NANO=y

package/rpi-firmware/rpi-firmware.mk

@@ -42,9 +42,17 @@ endef
 endif # INSTALL_VCDBG
 
 define RPI_FIRMWARE_INSTALL_IMAGES_CMDS
+    cp $(@D)/boot/fixup4cd.dat $(@D)/boot/fixup4_cd.dat
+    cp $(@D)/boot/fixup4x.dat $(@D)/boot/fixup4_x.dat
+    cp $(@D)/boot/fixup4db.dat $(@D)/boot/fixup4_db.dat
+    cp $(@D)/boot/start4cd.elf $(@D)/boot/start4_cd.elf
+    cp $(@D)/boot/start4x.elf $(@D)/boot/start4_x.elf
+    cp $(@D)/boot/start4db.elf $(@D)/boot/start4_db.elf
 	$(INSTALL) -D -m 0644 $(@D)/boot/bootcode.bin $(BINARIES_DIR)/rpi-firmware/bootcode.bin
 	$(INSTALL) -D -m 0644 $(@D)/boot/start$(BR2_PACKAGE_RPI_FIRMWARE_BOOT).elf $(BINARIES_DIR)/rpi-firmware/start.elf
 	$(INSTALL) -D -m 0644 $(@D)/boot/fixup$(BR2_PACKAGE_RPI_FIRMWARE_BOOT).dat $(BINARIES_DIR)/rpi-firmware/fixup.dat
+	$(INSTALL) -D -m 0644 $(@D)/boot/start4$(BR2_PACKAGE_RPI_FIRMWARE_BOOT).elf $(BINARIES_DIR)/rpi-firmware/start4.elf
+	$(INSTALL) -D -m 0644 $(@D)/boot/fixup4$(BR2_PACKAGE_RPI_FIRMWARE_BOOT).dat $(BINARIES_DIR)/rpi-firmware/fixup4.dat
 	$(INSTALL) -D -m 0644 package/rpi-firmware/config.txt $(BINARIES_DIR)/rpi-firmware/config.txt
 	$(INSTALL) -D -m 0644 package/rpi-firmware/cmdline.txt $(BINARIES_DIR)/rpi-firmware/cmdline.txt
 	$(RPI_FIRMWARE_INSTALL_DTB)