initial buildroot for linux 5.15

board/solidrun/macchiatobin/extlinux.conf

@@ -0,0 +1,4 @@
+label Macchiatobin Linux
+  kernel /boot/Image
+  devicetree /boot/armada-8040-mcbin.dtb
+  append console=ttyS0,115200n8 root=/dev/mmcblk1p1 rootwait

board/solidrun/macchiatobin/genimage.cfg

@@ -0,0 +1,16 @@
+image sdcard.img {
+	hdimage {
+	}
+
+	partition uboot {
+		in-partition-table = "no"
+		image = "flash-image.bin"
+		offset = 2M
+	}
+
+	partition rootfs {
+		partition-type = 0x83
+		offset = 34M
+		image = "rootfs.ext4"
+	}
+}

board/solidrun/macchiatobin/linux-extras.config

@@ -0,0 +1,3 @@
+CONFIG_MARVELL_PHY=y
+CONFIG_MARVELL_10G_PHY=y
+CONFIG_SFP=y

board/solidrun/macchiatobin/post-build-mainline.sh

@@ -0,0 +1,5 @@
+#!/bin/sh
+
+BOARD_DIR="$(dirname $0)"
+
+install -m 0644 -D $BOARD_DIR/extlinux.conf $TARGET_DIR/boot/extlinux/extlinux.conf

board/solidrun/macchiatobin/post-build.sh

@@ -0,0 +1,5 @@
+#!/bin/sh
+
+BOARD_DIR="$(dirname $0)"
+
+install -m 0644 -D ${BOARD_DIR}/uEnv-example.txt ${TARGET_DIR}/boot/uEnv-example.txt

board/solidrun/macchiatobin/readme.txt

@@ -0,0 +1,79 @@
+Intro
+=====
+
+This default configuration will allow you to start experimenting with
+the buildroot environment for the MacchiatoBin board based on the
+Marvell Armada 8040 SoC. Documentation for the board hardware and
+software is available on the wiki at: http://wiki.macchiatobin.net
+
+This default configuration will bring up the board and allow access
+through the serial console.
+
+How to build
+============
+
+Default configuration provides the following BSP versions:
+ - Linux v5.6.3 (mainline)
+ - U-Boot v2020.01 (mainline)
+ - ATF v1.5-18.12.2 (Marvell)
+
+To build images run the following commands:
+
+    $ make solidrun_macchiatobin_defconfig
+    $ make
+
+How to write the SD card
+========================
+
+Once the build process is finished you will have an image
+called "sdcard.img" in the output/images/ directory.
+
+Copy the bootable "sdcard.img" onto an SD card with "dd":
+
+  $ sudo dd if=output/images/sdcard.img of=/dev/sdX bs=1M conv=fsync
+  $ sudo sync
+
+How to boot the board
+=====================
+
+The MacchiatoBin board can be setup to load the bootloader from
+different sources including eMMC, SPI flash, and SD-card.
+
+On Rev 1.2 board to select boot from SD-card the DIP switches
+SW1 and SW2 should be configured as follows:
+
+SW2: 01110
+SW1: 1xxxx
+
+The upcoming Rev 1.3 board will have a single pins header J1 instead
+of the SW1/2 DIP switches. To boot from SD-card the setting of J1
+jumpers should match the DIP switches of Rev v1.2 board
+from left to right:
+
+J1: 011101xxxx
+
+Insert the micro SDcard in the MacchiatoBin board and power it up.
+The serial console is accessible at the micro-USB Type-B connector
+marked CON9. The serial line settings are 115200 8N1.
+
+U-Boot environment
+==================
+
+By default current configuration provides U-Boot that keeps environment
+in SD/eMMC. However, if needed, u-boot-fragment.config can be tweaked
+so that U-Boot will keep environment in SPI flash. On the first boot
+SPI flash may be empty or it may contain a stale environment that
+prevents proper boot. Then the following commands can be used
+to boot the board:
+
+=> ext4load mmc 1:1 0x01700000 /boot/uEnv-example.txt
+=> env import -t 0x01700000 $filesize
+=> boot
+
+The example environment from uEnv-example.txt can be written to
+SPI flash using the following commands:
+
+=> env default -f -a
+=> ext4load mmc 1:1 0x01700000 /boot/uEnv-example.txt
+=> env import -t 0x01700000 $filesize
+=> saveenv

board/solidrun/macchiatobin/uEnv-example.txt

@@ -0,0 +1,7 @@
+bootargs=console=ttyS0,115200 root=/dev/mmcblk1p1 rw rootwait
+fdt_addr=0x1000000
+fdt_high=0xffffffffffffffff
+fdt_name=boot/armada-8040-mcbin.dtb
+kernel_addr=0x2000000
+image_name=boot/Image
+bootcmd=mmc dev 1; ext4load mmc 1:1 $kernel_addr $image_name; ext4load mmc 1:1 $fdt_addr $fdt_name; booti $kernel_addr - $fdt_addr

board/solidrun/macchiatobin/uboot-fragment.config

@@ -0,0 +1,2 @@
+CONFIG_ENV_IS_IN_MMC=y
+# CONFIG_ENV_IS_IN_SPI_FLASH is not set