[Buildroot] [PATCH v2 4/5] configs/lichee_rv: new defconfig

[Angelo Compagnucci <angelo@amarulasolutions.com>]

Lichee RV - Nezha CM is a compute module with modular design, equipped
with Allwinner D1 chip (based on T-Head XuanTie C906 core), 512MB DDR3
RAM.
Board support is based on the nezha defconfig already available in
buildroot.

https://wiki.sipeed.com/hardware/en/lichee/RV/RV.html
https://linux-sunxi.org/Sipeed_Lichee_RV

Signed-off-by: Angelo Compagnucci <angelo@amarulasolutions.com>
---
 board/sipeed/lichee_rv/genimage.cfg           | 37 +++++++++++++
 ...t-building-u-boot.toc1-for-lichee-rv.patch | 54 +++++++++++++++++++
 board/sipeed/lichee_rv/readme.txt             | 26 +++++++++
 configs/sipeed_lichee_rv_defconfig            | 34 ++++++++++++
 4 files changed, 151 insertions(+)
 create mode 100644 board/sipeed/lichee_rv/genimage.cfg
 create mode 100644 board/sipeed/lichee_rv/patches/uboot/0001-Makefile-HACK-Support-building-u-boot.toc1-for-lichee-rv.patch
 create mode 100644 board/sipeed/lichee_rv/readme.txt
 create mode 100644 configs/sipeed_lichee_rv_defconfig

diff --git a/board/sipeed/lichee_rv/genimage.cfg b/board/sipeed/lichee_rv/genimage.cfg
new file mode 100644
index 0000000000..52603c3f70
--- /dev/null
+++ b/board/sipeed/lichee_rv/genimage.cfg
@@ -0,0 +1,37 @@
+# Minimal SD card image for the sipeed Lichee RV
+
+image sdcard.img {
+	hdimage {
+	}
+
+	partition boot0-1 {
+		in-partition-table = "no"
+		image = "boot0_sdcard_sun20iw1p1.bin"
+		offset = 8K
+	}
+
+	partition boot0-2 {
+		in-partition-table = "no"
+		image = "boot0_sdcard_sun20iw1p1.bin"
+		offset = 128K
+	}
+
+	partition u-boot-1 {
+		in-partition-table = "no"
+		image = "u-boot.toc1"
+		offset = 12M
+	}
+
+	partition u-boot-2 {
+		in-partition-table = "no"
+		image = "u-boot.toc1"
+		offset = 16400K
+	}
+
+	partition rootfs {
+		partition-type = 0x83
+		image = "rootfs.ext4"
+		bootable = "true"
+		offset = 18M
+	}
+}
diff --git a/board/sipeed/lichee_rv/patches/uboot/0001-Makefile-HACK-Support-building-u-boot.toc1-for-lichee-rv.patch b/board/sipeed/lichee_rv/patches/uboot/0001-Makefile-HACK-Support-building-u-boot.toc1-for-lichee-rv.patch
new file mode 100644
index 0000000000..69ebe3b21d
--- /dev/null
+++ b/board/sipeed/lichee_rv/patches/uboot/0001-Makefile-HACK-Support-building-u-boot.toc1-for-lichee-rv.patch
@@ -0,0 +1,54 @@
+From 4a923e0e4ef6d2b41cb89d658e269adada847573 Mon Sep 17 00:00:00 2001
+From: Peter Korsgaard <peter@korsgaard.com>
+Date: Thu, 4 Nov 2021 22:32:04 +0100
+Subject: [PATCH] Makefile: HACK: Support building u-boot.toc1 for nezda board
+
+For easier integration into Buildroot.  The boot0 / toc1 logic is WIP until
+U-Boot gains SPL support for the D1, so add a hack to make it easier to
+integrate in Buildroot as-is.
+
+Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
+---
+ Makefile  | 9 +++++++++
+ nezha.cfg | 9 +++++++++
+ 2 files changed, 18 insertions(+)
+ create mode 100644 nezha.cfg
+
+diff --git a/Makefile b/Makefile
+index f911f70344..259d93bf80 100644
+--- a/Makefile
++++ b/Makefile
+@@ -1084,6 +1084,15 @@ endif
+ .binman_stamp: FORCE
+ 	@touch $@
+ 
++fw_dynamic.bin: $(OPENSBI)
++	$(call if_changed,copy)
++
++MKIMAGEFLAGS_u-boot.toc1 = -T sunxi_toc1
++u-boot.toc1: lichee-rv.cfg fw_dynamic.bin inputs
++	$(call if_changed,mkimage)
++
++all: u-boot.toc1
++
+ ifeq ($(CONFIG_DEPRECATED),y)
+ 	$(warning "You have deprecated configuration options enabled in your .config! Please check your configuration.")
+ endif
+diff --git a/lichee-rv.cfg b/lichee-rv.cfg
+new file mode 100644
+index 0000000000..2d23b9b388
+--- /dev/null
++++ b/lichee-rv.cfg
+@@ -0,0 +1,9 @@
++[opensbi]
++file = fw_dynamic.bin
++addr = 0x40000000
++[dtb]
++file = arch/riscv/dts/sun20i-d1-lichee-rv.dtb
++addr = 0x44000000
++[u-boot]
++file = u-boot-nodtb.bin
++addr = 0x4a000000
+-- 
+2.20.1
+
diff --git a/board/sipeed/lichee_rv/readme.txt b/board/sipeed/lichee_rv/readme.txt
new file mode 100644
index 0000000000..008be3a3bc
--- /dev/null
+++ b/board/sipeed/lichee_rv/readme.txt
@@ -0,0 +1,26 @@
+Lichee RV
+===============
+
+Lichee RV - Nezha CM is a compute module with modular design, equipped
+with Allwinner D1 chip (based on T-Head XuanTie C906 core), 512MB DDR3 RAM.
+It can boot from TF card or SD-NAND, uses two sets of M.2 b key 67 pin
+connectors to route all IO, making it convient for wide use and easy to replace.
+
+How to build
+============
+
+$ make lichee_rv_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
+
+Connect a TTL UART to the debug connector, insert the microSD card and
+plug in a USB-C cable to the PWR connector to boot the system.
diff --git a/configs/sipeed_lichee_rv_defconfig b/configs/sipeed_lichee_rv_defconfig
new file mode 100644
index 0000000000..355d5caa70
--- /dev/null
+++ b/configs/sipeed_lichee_rv_defconfig
@@ -0,0 +1,34 @@
+BR2_riscv=y
+BR2_GLOBAL_PATCH_DIR="board/sipeed/lichee_rv/patches"
+BR2_ROOTFS_OVERLAY="board/nezha/overlay"
+BR2_ROOTFS_POST_IMAGE_SCRIPT="support/scripts/genimage.sh"
+BR2_ROOTFS_POST_SCRIPT_ARGS="-c board/sipeed/lichee_rv/genimage.cfg"
+BR2_LINUX_KERNEL=y
+BR2_LINUX_KERNEL_CUSTOM_TARBALL=y
+BR2_LINUX_KERNEL_CUSTOM_TARBALL_LOCATION="$(call github,smaeul,linux,fe178cf0153d98b71cb01a46c8cc050826a17e77)/linux-fe178cf0153d98b71cb01a46c8cc050826a17e77.tar.gz"
+BR2_LINUX_KERNEL_DEFCONFIG="nezha"
+BR2_LINUX_KERNEL_DTS_SUPPORT=y
+BR2_LINUX_KERNEL_INTREE_DTS_NAME="allwinner/sun20i-d1-lichee-rv"
+BR2_LINUX_KERNEL_INSTALL_TARGET=y
+BR2_TARGET_ROOTFS_EXT2=y
+BR2_TARGET_ROOTFS_EXT2_4=y
+# BR2_TARGET_ROOTFS_TAR is not set
+BR2_TARGET_OPENSBI=y
+BR2_TARGET_OPENSBI_CUSTOM_TARBALL=y
+BR2_TARGET_OPENSBI_CUSTOM_TARBALL_LOCATION="$(call github,smaeul,opensbi,e6793dc36a71537023f078034fe795c64a9992a3)/opensbi-e6793dc36a71537023f078034fe795c64a9992a3.tar.gz"
+BR2_TARGET_OPENSBI_PLAT="generic"
+# BR2_TARGET_OPENSBI_INSTALL_JUMP_IMG is not set
+BR2_TARGET_SUN20I_D1_SPL=y
+BR2_TARGET_UBOOT=y
+BR2_TARGET_UBOOT_BUILD_SYSTEM_KCONFIG=y
+BR2_TARGET_UBOOT_CUSTOM_TARBALL=y
+BR2_TARGET_UBOOT_CUSTOM_TARBALL_LOCATION="$(call github,smaeul,u-boot,d1-2022-05-26)/uboot-d1-2022-05-26.tar.gz"
+BR2_TARGET_UBOOT_BOARD_DEFCONFIG="lichee_rv"
+BR2_TARGET_UBOOT_NEEDS_DTC=y
+BR2_TARGET_UBOOT_NEEDS_PYLIBFDT=y
+BR2_TARGET_UBOOT_NEEDS_OPENSSL=y
+BR2_TARGET_UBOOT_NEEDS_OPENSBI=y
+# BR2_TARGET_UBOOT_FORMAT_BIN is not set
+BR2_TARGET_UBOOT_FORMAT_CUSTOM=y
+BR2_TARGET_UBOOT_FORMAT_CUSTOM_NAME="u-boot.toc1"
+BR2_PACKAGE_HOST_GENIMAGE=y
-- 
2.25.1

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