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mediatek: mt7623: add full system image for UniElec U7623

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This adds a full eMMC image including U-Boot, which means that the
kernel can inherit the true RAM size detected by the preloader.

As implemented in previous commits, sysupgrade to this image from
the legacy layout (and via that, from the vendor-installed image)
is supported.

Rename the legacy image for the 512MiB board, for clarity.

Signed-off-by: David Woodhouse <dwmw2@infradead.org>
This commit is contained in:
David Woodhouse 2020-07-21 19:19:40 +01:00 committed by Chuanhong Guo
parent 1113dcab05
commit b36422b914
3 changed files with 48 additions and 4 deletions
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2
target/linux/mediatek/image/Config.in
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@ -1,4 +1,4 @@
config MTK_BOOT_PARTSIZE
int "Boot (SD Card/eMMC) filesystem partition size (in MiB)"
depends on TARGET_mediatek_mt7623_DEVICE_bpi_bananapi-r2 || TARGET_DEVICE_mediatek_mt7623_DEVICE_bpi_bananapi-r2
depends on TARGET_mediatek_mt7623_DEVICE_bpi_bananapi-r2 || TARGET_DEVICE_mediatek_mt7623_DEVICE_bpi_bananapi-r2 || TARGET_mediatek_mt7623_DEVICE_unielec_u7623-emmc || TARGET_DEVICE_mediatek_mt7623_DEVICE_unielec_u7623-emmc
default 32

30
target/linux/mediatek/image/mt7623.mk
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@ -55,10 +55,33 @@ define Device/bpi_bananapi-r2
endef
TARGET_DEVICES += bpi_bananapi-r2
define Device/unielec_u7623-02-emmc-512m
# Full eMMC image including U-Boot and partition table
define Device/unielec_u7623-emmc
DEVICE_VENDOR := UniElec
DEVICE_MODEL := U7623
DEVICE_VARIANT := eMMC
# When we use FIT images, U-Boot will populate the /memory node with the correct
# memory size discovered from the preloader, so we don't need separate builds.
DEVICE_DTS := mt7623a-unielec-u7623-02-emmc-512m
SUPPORTED_DEVICES := unielec,u7623-02-emmc-512m
UBOOT_ENVSIZE := 0x1000
UBOOT_OFFSET := 256k
UBOOT_TARGET := mt7623a_unielec_u7623
IMAGES := img.gz
IMAGE/img.gz := mtk-mmc-img | gzip | append-metadata
DEVICE_PACKAGES := kmod-fs-vfat kmod-nls-cp437 kmod-nls-iso8859-1 kmod-mmc \
mkf2fs e2fsprogs kmod-usb-ohci kmod-usb2 kmod-usb3 kmod-ata-ahci-mtk
ARTIFACT/scatter.txt := scatterfile $$(firstword $$(FILESYSTEMS))-$$(firstword $$(IMAGES))
ARTIFACTS := scatter.txt
endef
TARGET_DEVICES += unielec_u7623-emmc
# Legacy partial image for U7623
# This preserves the vendor U-Boot and starts with a uImage at 0xA00
define Device/unielec_u7623-02-emmc-512m-legacy
DEVICE_VENDOR := UniElec
DEVICE_MODEL := U7623-02
DEVICE_VARIANT := eMMC/512MB RAM
DEVICE_VARIANT := eMMC/512MiB RAM (legacy image)
DEVICE_DTS := mt7623a-unielec-u7623-02-emmc-512m
KERNEL_NAME := zImage
KERNEL := kernel-bin | append-dtb | uImage none
@ -67,5 +90,6 @@ define Device/unielec_u7623-02-emmc-512m
mkf2fs e2fsprogs kmod-usb-ohci kmod-usb2 kmod-usb3 kmod-ata-ahci-mtk
IMAGES := sysupgrade-emmc.bin.gz
IMAGE/sysupgrade-emmc.bin.gz := sysupgrade-emmc | gzip | append-metadata
SUPPORTED_DEVICES := unielec,u7623-02-emmc-512m
endef
TARGET_DEVICES += unielec_u7623-02-emmc-512m
TARGET_DEVICES += unielec_u7623-02-emmc-512m-legacy

20
target/linux/mediatek/image/mt7623a_unielec_u7623-uEnv.txt Normal file
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@ -0,0 +1,20 @@
# Boot menu for UniElec U7623
# Copyright © 2020 David Woodhouse <dwmw2@infradead.org>
kernel=uImage
loadaddr=0x88000000
dtaddr=0x83f00000
fdt_high=0xafffffff
console=ttyS0,115200
bootopts=rootfstype=squashfs,ext4 rootwait
# Create the command line (with appropriate root=) and boot the Linux FIT image.
boot1=setenv bootargs "console=${console} root=${rootdev} ${bootopts}";printenv bootargs;\
fatload mmc ${partition} ${loadaddr} ${kernel}; bootm
bootmenu_0=Boot from eMMC.=setenv partition 0:2;setenv rootdev /dev/mmcblk0p3;run boot1
bootmenu_default=0
bootdelay=0
bootcmd=bootmenu