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arc770: Introduce images for SD-cards

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Historically on ARC we started from initramfs-based images because:
 a) It was much easier to debug especially when toolchain and other
    components were changing quite dynamically
 b) It was our usual approach for embedded Linux

But now with ARC port of Lede/OpenWRT getting more stable and mature
we're ready for more real-life scenarios with FS permanently stored
on SD-card. This essentially benefits from ability to setup devices
that survive reboots with all settings and extra packages kept in place.

Still we keep an ability to build images with initramfs.
This allows us to use storage-less simulators for testing still.

Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
Cc: John Crispin <john@phrozen.org>
Cc: Jo-Philipp Wich <jo@mein.io>
This commit is contained in:
Alexey Brodkin 2016-08-24 17:48:12 +03:00 committed by Felix Fietkau
parent ca519d4f8d
commit 30d75720fa
8 changed files with 103 additions and 74 deletions
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15
target/linux/arc770/generic/profiles/01-minimal.mk
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@ -1,15 +0,0 @@
#
# Copyright (C) 2015 OpenWrt.org
#
# This is free software, licensed under the GNU General Public License v2.
# See /LICENSE for more information.
#
define Profile/Minimal
NAME:=Minimal Profile (no drivers)
endef
define Profile/Minimal/Description
Minimal package set compatible with most boards.
endef
$(eval $(call Profile,Minimal))

16
target/linux/arc770/generic/profiles/02-axs101.mk
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@ -1,16 +0,0 @@
#
# Copyright (C) 2015 OpenWrt.org
#
# This is free software, licensed under the GNU General Public License v2.
# See /LICENSE for more information.
#
define Profile/axs101
NAME:=Synopsys DesignWare AXS101
PACKAGES:= kmod-usb-core kmod-usb-ohci kmod-usb2 kmod-ath9k-htc wpad-mini
endef
define Profile/axs101/Description
Package set compatible with hardware using Synopsys DesignWare AXS101 boards.
endef
$(eval $(call Profile,axs101))

15
target/linux/arc770/generic/profiles/03-nsim_700.mk
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@ -1,15 +0,0 @@
#
# Copyright (C) 2015 OpenWrt.org
#
# This is free software, licensed under the GNU General Public License v2.
# See /LICENSE for more information.
#
define Profile/nsim_700
NAME:=Synopsys nSIM
endef
define Profile/nsim_700/Description
Package set compatible with hardware using Synopsys nSIM 700 boards.
endef
$(eval $(call Profile,nsim_700))

2
target/linux/arc770/generic/target.mk
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@ -1,5 +1,5 @@
BOARDNAME:=Generic
FEATURES += ramdisk usb
FEATURES += ramdisk usb ext4
define Target/Description
Build firmware images for generic ARC 770D based boards.

5
target/linux/arc770/image/Config.in Normal file
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@ -0,0 +1,5 @@
config AXS10X_SD_BOOT_PARTSIZE
int "Boot (SD Card) filesystem partition size (in MB)"
depends on TARGET_arc770
default 20

84
target/linux/arc770/image/Makefile
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@ -11,46 +11,76 @@ include $(INCLUDE_DIR)/image.mk
# in memory from build to built. Thus we need to extract EP from vmlinux
# every time before generation of uImage.
define Build/calculate-ep
$(eval KERNEL_ENTRY=$(shell $(KERNEL_CROSS)readelf -h $(LINUX_DIR)/vmlinux | grep "Entry point address" | grep -o 0x.*))
$(eval KERNEL_ENTRY=$(shell $(KERNEL_CROSS)readelf -h $(1) | grep "Entry point address" | grep -o 0x.*))
endef
define Build/build-dtb
$(call Image/BuildDTB,$(DTS_DIR)/$(DEVICE_DTS).dts,$(DTS_DIR)/$(DEVICE_DTS).dtb)
endef
define Build/patch-dtb
$(call Image/BuildDTB,$(DTS_DIR)/$(DEVICE_DTS).dts,$@.dtb)
$(STAGING_DIR_HOST)/bin/patch-dtb $@ $@.dtb
$(STAGING_DIR_HOST)/bin/patch-dtb $@ $(DTS_DIR)/$(DEVICE_DTS).dtb
endef
# Shared device definition: applies to every defined device
define Device/Default
PROFILES = Default $$(DEVICE_PROFILE)
KERNEL_DEPENDS = $$(wildcard ../dts/$$(DEVICE_DTS).dts)
DEVICE_PROFILE :=
endef
DEVICE_VARS += DEVICE_PROFILE
ifneq ($(CONFIG_TARGET_ROOTFS_INITRAMFS),)
# Root FS built-in
define Device/vmlinux
KERNEL_SUFFIX := .elf
KERNEL_INITRAMFS := kernel-bin | patch-dtb
KERNEL_INITRAMFS_NAME = vmlinux-initramfs.elf
KERNEL_SUFFIX := .elf
KERNEL := kernel-bin | build-dtb | patch-dtb
KERNEL_INITRAMFS_NAME = vmlinux-initramfs.elf
endef
define Device/uImage
KERNEL_SUFFIX := -uImage
KERNEL_INITRAMFS := kernel-bin | patch-dtb | calculate-ep | uImage none
KERNEL_LOADADDR := 0x80000000
endef
define Device/axs101
$(call Device/uImage)
DEVICE_PROFILE := axs101
DEVICE_DTS := axs101
endef
TARGET_DEVICES += axs101
define Device/nsim
$(call Device/vmlinux)
DEVICE_PROFILE := nsim
DEVICE_DTS := nsim_700
endef
TARGET_DEVICES += nsim
endif
# Root FS on SD-card
KERNEL_LOADADDR := 0x80000000
DEVICE_DTS_LIST:= axs101
FAT32_BLOCK_SIZE=1024
FAT32_BLOCKS=$(shell echo $$(($(CONFIG_AXS10X_SD_BOOT_PARTSIZE)*1024*1024/$(FAT32_BLOCK_SIZE))))
define Image/Build/SDCard
rm -f $(KDIR_TMP)/$(IMG_PREFIX)-$(PROFILE)-boot.img
mkdosfs $(KDIR_TMP)/$(IMG_PREFIX)-$(PROFILE)-boot.img -C $(FAT32_BLOCKS)
mkimage -C none -A arc -T script -d uEnv.txt $(BIN_DIR)/uEnv.scr
mcopy -i $(KDIR_TMP)/$(IMG_PREFIX)-$(PROFILE)-boot.img $(BIN_DIR)/uEnv.scr ::boot.scr
mcopy -i $(KDIR_TMP)/$(IMG_PREFIX)-$(PROFILE)-boot.img $(DTS_DIR)/*.dtb ::
mcopy -i $(KDIR_TMP)/$(IMG_PREFIX)-$(PROFILE)-boot.img $(BIN_DIR)/$(IMG_PREFIX)-uImage ::uImage
./gen_axs10x_sdcard_img.sh \
$(BIN_DIR)/$(IMG_PREFIX)-$(PROFILE)-sdcard-vfat-$(1).img \
$(KDIR_TMP)/$(IMG_PREFIX)-$(PROFILE)-boot.img \
$(KDIR)/root.$(1) \
$(CONFIG_AXS10X_SD_BOOT_PARTSIZE) \
$(CONFIG_TARGET_ROOTFS_PARTSIZE)
ifneq ($(CONFIG_TARGET_IMAGES_GZIP),)
gzip -f9n $(BIN_DIR)/$(IMG_PREFIX)-$(PROFILE)-sdcard-vfat-$(1).img
endif
endef
define Image/BuildKernel
# Build unified uImage
$(call Build/calculate-ep, $(KDIR)/vmlinux.elf)
$(call Image/BuildKernel/MkuImage, \
none, $(KERNEL_LOADADDR), $(KERNEL_ENTRY), \
$(KDIR)/vmlinux, \
$(BIN_DIR)/$(IMG_PREFIX)-uImage \
)
# Build .dtb for all boards we may run on
$(foreach DEVICE_DTS,$(shell echo $(DEVICE_DTS_LIST)), $(call Build/build-dtb))
endef
define Image/Build
$(call Image/Build/$(1),$(1))
$(call Image/Build/SDCard,$(1))
dd if=$(KDIR)/root.$(1) of=$(BIN_DIR)/$(IMG_PREFIX)-root.$(1) bs=128k conv=sync
endef
$(eval $(call BuildImage))

33
target/linux/arc770/image/gen_axs10x_sdcard_img.sh Executable file
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@ -0,0 +1,33 @@
#!/usr/bin/env bash
#
# Copyright (C) 2016 OpenWrt.org
#
# This is free software, licensed under the GNU General Public License v2.
# See /LICENSE for more information.
#
set -x
[ $# -eq 5 ] || {
echo "SYNTAX: $0 <file> <bootfs image> <rootfs image> <bootfs size> <rootfs size>"
exit 1
}
OUTPUT="$1"
BOOTFS="$2"
ROOTFS="$3"
BOOTFSSIZE="$4"
ROOTFSSIZE="$5"
head=4
sect=63
set `ptgen -o $OUTPUT -h $head -s $sect -l 1024 -t c -p ${BOOTFSSIZE}M -t 83 -p ${ROOTFSSIZE}M`
BOOTOFFSET="$(($1 / 512))"
BOOTSIZE="$(($2 / 512))"
ROOTFSOFFSET="$(($3 / 512))"
ROOTFSSIZE="$(($4 / 512))"
dd bs=512 if="$BOOTFS" of="$OUTPUT" seek="$BOOTOFFSET" conv=notrunc
dd bs=512 if="$ROOTFS" of="$OUTPUT" seek="$ROOTFSOFFSET" conv=notrunc

7
target/linux/arc770/image/uEnv.txt Normal file
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@ -0,0 +1,7 @@
setenv kernel_addr_r 0x82000000
setenv fdt_addr_r 0x83000000
setenv loadkernel fatload mmc 0 \$(kernel_addr_r) uImage
setenv loaddtb fatload mmc 0 \$(fdt_addr_r) \$(dts)
setenv bootargs earlycon=uart8250,mmio32,0xe0022000,115200n8 console=ttyS3,115200n8 root=/dev/mmcblk0p2 rootwait print-fatal-signals=1
setenv uenvcmd run loadkernel\; run loaddtb\; bootm \$(kernel_addr_r) - \$(fdt_addr_r)
run uenvcmd