configs/raspberrypicm5io: new defconfig
This configuration builds an image for the Compute Module 5 IO Board. Note: Unlike the Raspberry Pi 5 and its dedicated debug uart connector, the kernel console on Compute Module 5 IO Board is back to UART0 (ttyAMA0) on PIN8 (GPIO14, TX, yellow) and PIN10 (GPIO15, RX, orange) on the 40-pin header, as the former version of the Raspberry Pi. Signed-off-by: Gaël PORTAY <gael.portay+rtone@gmail.com> Signed-off-by: Julien Olivain <ju.o@free.fr>
This commit is contained in:
Gaël PORTAY
committed by
Julien Olivain
Julien Olivain
parent
db1b8130c7
commit
fd5628e5dc
24
board/raspberrypi/config_cm5io.txt
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24
board/raspberrypi/config_cm5io.txt
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@@ -0,0 +1,24 @@
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# Please note that this is only a sample, we recommend you to change it to fit
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# your needs.
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# You should override this file using BR2_PACKAGE_RPI_FIRMWARE_CONFIG_FILE.
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# See http://buildroot.org/manual.html#rootfs-custom
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# and http://elinux.org/RPiconfig for a description of config.txt syntax
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kernel=Image
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# To use an external initramfs file
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#initramfs rootfs.cpio.gz
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# Disable overscan assuming the display supports displaying the full resolution
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# If the text shown on the screen disappears off the edge, comment this out
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disable_overscan=1
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# enable RTC
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dtparam=i2c_vc=on
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dtoverlay=i2c-rtc,pcf85063a,i2c_csi_dsi
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# enable dwc2 USB controller (USB 2.0)
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dtoverlay=dwc2,dr_mode=host
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# Enable UART0 for serial console on ttyAMA0
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dtparam=uart0_console=on
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@@ -20,6 +20,7 @@ These instructions apply to all models of the Raspberry Pi:
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- the model CM4s (aka Raspberry Pi Compute Module 4s).
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- the model B5 (aka Raspberry Pi 5).
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- the model 500 (aka Raspberry Pi 500).
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- the model CM5 (aka Raspberry Pi Compute Module 5 and IO Board).
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How to build it
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===============
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@@ -86,6 +87,10 @@ For model 5 B and 500:
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$ make raspberrypi5_defconfig
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For model CM5 (on IO Board):
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$ make raspberrypicm5io_defconfig
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Build the rootfs
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----------------
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@@ -123,6 +128,8 @@ After building, you should obtain this tree:
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+-- bcm2712-rpi-5-b.dtb [1]
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+-- bcm2712d0-rpi-5-b.dtb [1]
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+-- bcm2712-rpi-500.dtb [1]
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+-- bcm2712-rpi-cm5-cm5io [1]
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+-- bcm2712-rpi-cm5l-cm5io [1]
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+-- boot.vfat
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+-- rootfs.ext4
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+-- rpi-firmware/
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@@ -197,3 +204,33 @@ for CM4 modules with eMMC memory proceed as following:
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- power down CM4/IO Board
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- remove jumper on IO Board header J2 to re-enable eMMC boot
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- power up CM4/IO Board
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CM5 debug UART
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==============
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The debug UART header is not assembled on the Compute Module 5.
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2.23. Debug UART
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Space is provided for the user to fit a debug UART connector. This
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connector provides the same functionality as Raspberry Pi 5. The
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connector is a three-pin 1mm pitch JST-SH connector, Part number
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BM03B-SRSS-TB. The signals are replicated on the bottom as test points.
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Appendix B: Test Points
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| Reference | X | Y | NAME |
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| TP35 | 11 | 37.8 | DEBUG_UART_TX |
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| TP36 | 8.5 | 37.1 | DEBUG_UART_RX |
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Debug UART
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TP35 and TP36 are a TX and RX of the debug UART. TP46 should be used as
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the ground. It is very useful to have access to these pins during
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programming and initial boot.
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See https://datasheets.raspberrypi.com/cm5/cm5-datasheet.pdf.
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The signals are not wired up to 100-pin headers either. And thus, it is
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impossible to output early boot traces in the EEPROM firmware without
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assembling a JST-SH connector (or using the test points).
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1
board/raspberrypicm5io
Symbolic link
1
board/raspberrypicm5io
Symbolic link
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raspberrypi
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35
configs/raspberrypicm5io_defconfig
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35
configs/raspberrypicm5io_defconfig
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BR2_aarch64=y
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BR2_cortex_a76=y
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BR2_TOOLCHAIN_EXTERNAL=y
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BR2_TOOLCHAIN_EXTERNAL_BOOTLIN=y
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BR2_TOOLCHAIN_EXTERNAL_BOOTLIN_AARCH64_GLIBC_STABLE=y
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BR2_GLOBAL_PATCH_DIR="board/raspberrypi/patches"
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BR2_DOWNLOAD_FORCE_CHECK_HASHES=y
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BR2_SYSTEM_DHCP="eth0"
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BR2_ROOTFS_POST_BUILD_SCRIPT="board/raspberrypicm5io/post-build.sh"
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BR2_ROOTFS_POST_IMAGE_SCRIPT="board/raspberrypicm5io/post-image.sh"
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BR2_LINUX_KERNEL=y
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BR2_LINUX_KERNEL_CUSTOM_TARBALL=y
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BR2_LINUX_KERNEL_CUSTOM_TARBALL_LOCATION="$(call github,raspberrypi,linux,cd231d4775b14f228606c09f219b48308f6ab3aa)/linux-cd231d4775b14f228606c09f219b48308f6ab3aa.tar.gz"
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BR2_LINUX_KERNEL_DEFCONFIG="bcm2712"
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BR2_LINUX_KERNEL_CONFIG_FRAGMENT_FILES="board/raspberrypi/linux-4k-page-size.fragment"
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BR2_LINUX_KERNEL_DTS_SUPPORT=y
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BR2_LINUX_KERNEL_INTREE_DTS_NAME="broadcom/bcm2712-rpi-cm5-cm5io broadcom/bcm2712-rpi-cm5l-cm5io"
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BR2_LINUX_KERNEL_NEEDS_HOST_OPENSSL=y
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BR2_PACKAGE_BUSYBOX_SHOW_OTHERS=y
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BR2_PACKAGE_XZ=y
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BR2_PACKAGE_RPI_FIRMWARE=y
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BR2_PACKAGE_RPI_FIRMWARE_CONFIG_FILE="board/raspberrypicm5io/config_cm5io.txt"
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BR2_PACKAGE_RPI_FIRMWARE_CMDLINE_FILE="board/raspberrypicm5io/cmdline.txt"
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BR2_PACKAGE_RPI_FIRMWARE_INSTALL_DTB_OVERLAYS=y
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BR2_PACKAGE_KMOD=y
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BR2_PACKAGE_KMOD_TOOLS=y
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BR2_TARGET_ROOTFS_EXT2=y
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BR2_TARGET_ROOTFS_EXT2_4=y
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BR2_TARGET_ROOTFS_EXT2_SIZE="120M"
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# BR2_TARGET_ROOTFS_TAR is not set
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BR2_PACKAGE_HOST_DOSFSTOOLS=y
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BR2_PACKAGE_HOST_GENIMAGE=y
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BR2_PACKAGE_HOST_KMOD_XZ=y
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BR2_PACKAGE_HOST_MTOOLS=y
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BR2_PACKAGE_HOST_RASPBERRYPI_USBBOOT=y
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