add hpmicro opensbi based linux support

- add hpm6800evk support

README.md

@@ -1,44 +1,20 @@
 # Buildroot for HPMicro MCUs
-
-[![Build](https://github.com/hpm-rs/buildroot/actions/workflows/build.yml/badge.svg)](https://github.com/hpm-rs/buildroot/actions/workflows/build.yml)
-
-为 HPMicro MCUs 生成可启动的 Linux 镜像。
-
-[![asciicast](https://asciinema.org/a/JY1MJ8BY5g77wwIlEk9NCYnWn.svg)](https://asciinema.org/a/JY1MJ8BY5g77wwIlEk9NCYnWn)
-
-**考虑到 Buildroot 编译一次耗时过长，提供了 pre-built 镜像，可在最新的 [CI 构建](https://github.com/hpm-rs/buildroot/actions/workflows/build.yml) 中下载。**
-
-如果你想在本地环境编译，请参考下列说明。
-
-## 获取源码
-
-```shell
-git clone https://github.com/hpm-rs/buildroot.git
-```
-
 ## 配置编译环境
 
 ### Ubuntu 22.04
 
 ```shell
 sudo apt-get install bc bison build-essential flex libssl-dev unzip
-# 安装 rust 编译环境
-curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh
-```
 
 ## 编译
 
 ```shell
-make hpmicro_hpm6360evk_defconfig
+make hpmicro_hpm6800evk_defconfig
 make all
 ```
 
 ## 烧录
 
-生成的镜像路径为 `output/images/flash.img`。可使用 [hpm_isp](https://github.com/tfx2001/hpm_isp) 工具进行烧录。
+生成的镜像路径为 `output/images/flash.img`。可使用 [hpm_manufacturing_tool](https://github.com/hpmicro/hpm_manufacturing_tool) 工具进行烧录。
 
-修改启动模式选择管脚为 `BOOT_MODE[1:0]=0b10` 后将 USB0 连接至 PC，运行如下命令进行烧录。
-
-```shell
-hpm_isp flash 0 write 0x0 output/images/flash.img
-```
+修改启动模式选择管脚为 `BOOT_MODE[1:0]=0b10` 后将 USB0 连接至 PC，运行hpm_manufacturing_tool进行烧录。

board/hpmicro/hpm6360evk/genimage.cfg → board/hpmicro/hpm6800evk/genimage_opensbi.cfg

@@ -1,5 +1,3 @@
-# Minimal Flash image for HPMicro HPM6360 Evaluate Kit
-
 flash w25q128 {
 	pebsize = 64K
 	numpebs = 256
@@ -12,18 +10,26 @@ image flash.img {
 
 	flashtype = "w25q128"
 
-	partition rustsbi {
-		image = "rustsbi.bin"
-		size = 64K
+	partition opensbiloader {
+		size = 64k
+		image = "opensbiloader.bin"
+	}
+
+	partition opensbi {
+		offset = 64K
+		image = "fw_jump.bin"
+		size = 192K
 	}
 
 	partition kernel {
 		image = "Image"
-		size = 3M
+		offset = 256K
+		size = 2880K
 	}
 
 	partition dtb {
-		image = "hpm6360-evk.dtb"
+		image = "hpm6800evk.dtb"
+		offset = 3136K
 		size = 64K
 	}
 

boot/Config.in

@@ -14,6 +14,7 @@ source "boot/mv-ddr-marvell/Config.in"
 source "boot/mxs-bootlets/Config.in"
 source "boot/optee-os/Config.in"
 source "boot/opensbi/Config.in"
+source "boot/hpmicro_loader/Config.in"
 source "boot/rustsbi-hpm/Config.in"
 source "boot/s500-bootloader/Config.in"
 source "boot/shim/Config.in"

boot/hpmicro_loader/Config.in

@@ -0,0 +1,11 @@
+config BR2_TARGET_HPMICRO_LOADER
+	bool "hpmicro_opensbi_loader"
+	help
+	  Lowlevel loader for hpmciro SOCs using OpenSBI
+
+if BR2_TARGET_HPMICRO_LOADER
+config BR2_TARGET_HPMICRO_BOARD_NAME
+	string "HPMicro Board Name"
+	help
+	  Enter HPMicro Board Name. Example: hpm6800evk. This is passed to hpm_sdk's cmake arg "-DBOARD={}":"https://github.com/hpmicro/hpm_sdk"
+endif

boot/hpmicro_loader/hpmicro_loader.mk

@@ -0,0 +1,22 @@
+################################################################################
+#
+# ramspeed
+#
+################################################################################
+HPMICRO_LOADER_VERSION = 5acfbb3dd810b56ea1e7837b00660c79d8975d9a
+HPMICRO_LOADER_SITE = https://github.com/hpmicro/hpm_opensbi_loader.git
+HPMICRO_LOADER_SITE_METHOD = git
+HPMICRO_LOADER_GIT_SUBMODULES = YES
+HPMICRO_LOADER_CMAKE_BACKEND = ninja
+HPMICRO_LOADER_SUPPORTS_IN_SOURCE_BUILD = No
+
+HPMICRO_LOADER_CONF_OPTS = -DBOARD=$(BR2_TARGET_HPMICRO_BOARD_NAME) -DHPM_BUILD_TYPE=flash_xip -DCMAKE_BUILD_TYPE=debug -DCMAKE_C_FLAGS="-g" -DCMAKE_EXE_LINKER_FLAGS="" -DCMAKE_SHARED_LINKER_FLAGS="" -DCMAKE_MODULE_LINKER_FLAGS="" 
+HPMICRO_LOADER_CONF_ENV = HPM_SDK_BASE=$(@D)/hpm_sdk HPM_SDK_TOOLCHAIN_VARIANT=gcc
+
+define HPMICRO_LOADER_INSTALL_TARGET_CMDS
+	dd if=/dev/zero of=$(@D)/buildroot-build/output/temp.bin bs=1 count=1024
+	cat $(@D)/buildroot-build/output/temp.bin $(@D)/buildroot-build/output/demo.bin > $(@D)/buildroot-build/output/opensbiloader.bin
+	$(INSTALL) -D -m 0644 $(@D)/buildroot-build/output/opensbiloader.bin $(BINARIES_DIR)/opensbiloader.bin
+endef
+
+$(eval $(cmake-package))

configs/hpmicro_hpm6800evk_defconfig

@@ -0,0 +1,49 @@
+BR2_riscv=y
+BR2_riscv_custom=y
+
+BR2_RISCV_ISA_RVI=y
+BR2_RISCV_ISA_RVM=y
+BR2_RISCV_ISA_RVA=y
+BR2_RISCV_ISA_RVC=y
+BR2_RISCV_32=y
+BR2_RISCV_ABI_ILP32=y
+BR2_BINFMT_FLAT=y
+# BR2_RISCV_USE_MMU is not set
+BR2_KERNEL_HEADERS_VERSION=y
+BR2_DEFAULT_KERNEL_VERSION="6.10"
+BR2_TOOLCHAIN_BUILDROOT_USE_SSP=y
+BR2_ENABLE_LTO=y
+BR2_ROOTFS_MERGED_USR=y
+BR2_TARGET_GENERIC_GETTY_PORT="hvc0"
+# BR2_TARGET_GENERIC_REMOUNT_ROOTFS_RW is not set
+BR2_ROOTFS_POST_IMAGE_SCRIPT="support/scripts/genimage.sh"
+BR2_ROOTFS_POST_IMAGE_SCRIPT_ARGS="-c board/hpmicro/hpm6800evk/genimage_opensbi.cfg"
+BR2_LINUX_KERNEL=y
+BR2_LINUX_KERNEL_CUSTOM_TARBALL=y
+BR2_LINUX_KERNEL_CUSTOM_TARBALL_LOCATION="$(call github,hpmicro,linux,5fe642640e65de232154bf1fbe479676494cac40)/linux-5fe642640e65de232154bf1fbe479676494cac40.tar.gz"
+BR2_LINUX_KERNEL_DEFCONFIG="nommu_hpmicro"
+BR2_LINUX_KERNEL_DTS_SUPPORT=y
+BR2_LINUX_KERNEL_INTREE_DTS_NAME="hpmicro/hpm6800evk"
+BR2_PACKAGE_BUSYBOX_CONFIG="board/hpmicro/hpm6800evk/busybox.config"
+# BR2_PACKAGE_IFUPDOWN_SCRIPTS is not set
+BR2_TARGET_ROOTFS_SQUASHFS=y
+BR2_TARGET_ROOTFS_SQUASHFS4_LZ4=y
+# BR2_TARGET_ROOTFS_TAR is not set
+BR2_TARGET_OPENSBI=y
+# BR2_TARGET_OPENSBI_LATEST_VERSION is not set
+# BR2_TARGET_OPENSBI_CUSTOM_VERSION is not set
+# BR2_TARGET_OPENSBI_CUSTOM_TARBALL is not set
+BR2_TARGET_OPENSBI_CUSTOM_GIT=y
+BR2_TARGET_OPENSBI_CUSTOM_REPO_URL="https://github.com/hpmicro/opensbi.git"
+BR2_TARGET_OPENSBI_CUSTOM_REPO_VERSION="442c39695426da49740d33203c43dc2942d18633"
+BR2_TARGET_OPENSBI_VERSION="442c39695426da49740d33203c43dc2942d18633"
+BR2_TARGET_OPENSBI_PLAT="hpmicro"
+# BR2_TARGET_OPENSBI_INSTALL_DYNAMIC_IMG is not set
+BR2_TARGET_OPENSBI_INSTALL_JUMP_IMG=y
+# BR2_TARGET_OPENSBI_INSTALL_PAYLOAD_IMG is not set
+# BR2_TARGET_OPENSBI_LINUX_PAYLOAD is not set
+BR2_TARGET_OPENSBI_ADDITIONAL_VARIABLES="HPMSOC=HPM6800"
+BR2_TARGET_HPMICRO_LOADER=y
+BR2_TARGET_HPMICRO_BOARD_NAME="hpm6800evk"
+BR2_PACKAGE_HOST_GENIMAGE=y
+BR2_PACKAGE_HOST_MKPASSWD=y