RZ/G2L微处理器配备Cortex®-A55（1.2GHz）CPU、16 位DDR3L/DDR4接口、带Arm®Mali-G31的3D图形加速引擎以及视频编解码器（H.264）。此外，这款微处理器还配备有大量接口，如摄像头输入、显示输出、USB 2.0和千兆以太网，因此特别适用于入门级工业人机界面（HMI）和具有视频功能的嵌入式设备等应用。
点击可查看大图
https://www.renesas.cn/cn/zh/products/microcontrollers-microprocessors/rz-mpus/rzg2l-general-purpose-mpu-dual-core-arm-cortex-a55-cpus-and-single-core-cortex-m33-cpu-3d-graphics-and
在过去的支持中有客户询问关于如何在VLP中添加自己设计的RZ/G2L板子的编译支持，并希望获得样例指导，本文将基于当前最新的VLP3.0.6-update2，将RZ/G2L SMARC EVK虚拟成客户自己的板子oem-rzg2l，一步步指导整个添加过程，并提供完整的sample code。
1. 构建vlp3.0.6-update2的开发环境
mkdir vlp3.0.6-update2cd vlp3.0.6-update2/tar xvf ../sdk-flile/vlp3.0.6-update2/RTK0EF0045Z0021AZJ-v3.0.6-update2/rzg_vlp_v3.0.6.tar.gzpatch -p1 < ../../sdk-flile/vlp3.0.6-update2/RTK0EF0045Z0021AZJ-v3.0.6-update2/0001-rz-common-recipes-debian-buster-glibc-update-to-v2.2.patchpatch -p1 < ../../sdk-flile/vlp3.0.6-update2/RTK0EF0045Z0021AZJ-v3.0.6-update2/0001-rz-common-linux-update-linux-kernel-to-the-latest-re.patchtar xvf ../sdk-flile/vlp3.0.6-update2/RTK0EF0045Z13001ZJ-v1.2.2_EN/meta-rz-features_graphics_v1.2.2.tar.gztar xvf ../sdk-flile/vlp3.0.6-update2/RTK0EF0045Z15001ZJ-v1.2.1_EN/meta-rz-features_codec_v1.2.1.tar.gz
至此vlp3.0.6-update2的开发环境构建完毕。
2. 在meta-renesas路径下创建OEM MACHINE的配置文件
cd meta-renesas/创建oem-rzg2l.confcp meta-rzg2l/conf/machine/smarc-rzg2l.conf meta-rzg2l/conf/machine/oem-rzg2l.conf修改 ./meta-rzg2l/conf/machine/oem-rzg2l.conf：diff --git a/meta-rzg2l/conf/machine/oem-rzg2l.conf b/meta-rzg2l/conf/machine/oem-rzg2l.confindex 49666a8..d78e634 100644--- a/meta-rzg2l/conf/machine/oem-rzg2l.conf+++ b/meta-rzg2l/conf/machine/oem-rzg2l.conf@@ -1,6 +1,6 @@#@TYPE: Machine-#@NAME: smarc-rzg2l machine-#@DESCRIPTION: RZ/G2L SMARC platform+#@NAME: oem-rzg2l machine+#@DESCRIPTION: RZ/G2L OEM platformSOC_FAMILY = "r9a07g044l"require conf/machine/include/rzg2l-common.inc@@ -13,8 +13,8 @@ require ${TUNE_CONF}PREFERRED_PROVIDER_virtual/kernel="linux-renesas"-UBOOT_CONFIG ??= "smarc-rzg2l"-UBOOT_CONFIG[smarc-rzg2l] = "smarc-rzg2l_defconfig"+UBOOT_CONFIG ??= "oem-rzg2l"+UBOOT_CONFIG[oem-rzg2l] = "oem-rzg2l_defconfig"EXTRA_IMAGEDEPENDS += " flash-writer"@@ -25,7 +25,7 @@ PMIC_SUPPORT ?= "1"# Supported devicetreeKERNEL_DEVICETREE = " \- renesas/r9a07g044l2-smarc.dtb \+ renesas/r9a07g044l2-oem.dtb \"IMAGE_BOOT_FILES = " \@@ -37,7 +37,7 @@ IMAGE_BOOT_FILES = " \bl2_bp-${MACHINE}.srec \fip-${MACHINE}_pmic.srec \fip-${MACHINE}.srec \- Flash_Writer_SCIF_RZG2L_SMARC_PMIC_DDR4_2GB_1PCS.mot \- Flash_Writer_SCIF_RZG2L_SMARC_DDR4_2GB.mot \+ Flash_Writer_SCIF_RZG2L_OEM_PMIC_DDR4_2GB_1PCS.mot \+ Flash_Writer_SCIF_RZG2L_OEM_DDR4_2GB.mot \"WIC_INPUT_DEPENDS = "firmware-pack:do_deploy flash-writer:do_deploy"cp meta-rzg2l/docs/template/conf/smarc-rzg2l/ meta-rzg2l/docs/template/conf/oem-rzg2l修改./meta-rzg2l/docs/template/conf/oem-rzg2l/site.conf:-MACHINE ??= "smarc-rzg2l"+MACHINE ??= "oem-rzg2l"cp docs/template/conf/smarc-rzg2l docs/template/conf/oem-rzg2l -rf修改 ./meta-rzg2l/docs/template/conf/oem-rzg2l/site.conf:-MACHINE ??= "smarc-rzg2l"+MACHINE ??= "oem-rzg2l"
3. 在README.md文件中添加oem-rzg2l板子的信息
这一步不是必要的，对编译过程没有影响，但是为了方便后续做维护和追踪，还是建议修改：
diff --git a/README.md b/README.mdindex 55a1122..7bfc8fd 100644--- a/README.md+++ b/README.md@@ -13,6 +13,7 @@ Currently the following boards and MPUs are supported:- Board: HIHOPE-RZG2N / MPU: R8A774B1 (RZG2N)- Board: HIHOPE-RZG2H / MPU: R8A774E1 (RZG2H)- Board: RZG2L SMARC Evaluation Kit / MPU: R9A07G044L (RZ/G2L)+- Board: RZG2L OEM custom board / MPU: R9A07G044L (RZ/G2L)- Board: RZG2L Development Evaluation Kit / MPU: R9A07G044L (RZ/G2L)- Board: RZG2LC SMARC Evaluation Kit / MPU: R9A07G044C (RZ/G2LC)- Board: RZG2LC Development Evaluation Kit / MPU: R9A07G044C (RZ/G2L)@@ -194,7 +195,7 @@ Currently, there are 2 types of build procedure supported in below description:|RZ/G2M |rzg2h |hihope-rzg2m ||RZ/G2N |rzg2h |hihope-rzg2n ||RZ/G2E |rzg2h |ek874 |-|RZ/G2L |rzg2l |smarc-rzg2l, rzg2l-dev |+|RZ/G2L |rzg2l |smarc-rzg2l, rzg2l-dev, oem-rzg2l ||RZ/G2LC |rzg2l |smarc-rzg2lc, rzg2lc-dev||RZ/G2UL |rzg2l |smarc-rzg2ul, rzg2ul-dev||RZ/V2L |rzv2l |smarc-rzv2l, rzv2l-dev |@@ -217,7 +218,7 @@ Currently, there are 2 types of build procedure supported in below description:* RZ/G2M: hihope-rzg2m* RZ/G2N: hihope-rzg2n* RZ/G2E: ek874-* RZ/G2L: smarc-rzg2l, rzg2l-dev+* RZ/G2L: smarc-rzg2l, rzg2l-dev, oem-rzg2l* RZ/G2LC: smarc-rzg2lc, rzg2lc-dev* RZ/G2UL: smarc-rzg2ul, rzg2ul-dev* RZ/V2L: smarc-rzv2l, rzv2l-dev
4. 为flash-writer创建客户oem-rzg2l板子的编译支持补丁
git clone https://github.com/renesas-rz/rzg2_flash_writer.gitcd rzg2_flash_writergit checkout rz_g2l
修改makefile和makefile.linaro为oem-rzg2l板子添加DDR型号的编译支持选择。
diff --git a/makefile b/makefileindex 0d4c834..f6862e1 100644--- a/makefile+++ b/makefile@@ -26,6 +26,24 @@ DEVICE = RZG2LDDR_TYPE = DDR4DDR_SIZE = 2GB_1PCSSWIZZLE = T1BC+else ifeq ("$(BOARD)", "RZG2L_OEM")+#--------------------------------------+# RZ/G2L Oem Custom board+#--------------------------------------+FILENAME_ADD = _RZG2L_OEM+DEVICE = RZG2L+DDR_TYPE = DDR4+DDR_SIZE = 2GB+SWIZZLE = T1C+else ifeq ("$(BOARD)", "RZG2L_OEM_PMIC")+#--------------------------------------+# RZ/G2L Oem PMIC Custom board+#--------------------------------------+FILENAME_ADD = _RZG2L_OEM_PMIC+DEVICE = RZG2L+DDR_TYPE = DDR4+DDR_SIZE = 2GB_1PCS+SWIZZLE = T1BCelse ifeq ("$(BOARD)", "RZG2L_15MMSQ_DEV")#--------------------------------------# RZ/G2L 15MMSQ Dev boarddiff --git a/makefile.linaro b/makefile.linaroindex 453572f..1a6f61b 100644--- a/makefile.linaro+++ b/makefile.linaro@@ -26,6 +26,24 @@ DEVICE = RZG2LDDR_TYPE = DDR4DDR_SIZE = 2GB_1PCSSWIZZLE = T1BC+else ifeq ("$(BOARD)", "RZG2L_OEM")+#--------------------------------------+# RZ/G2L Oem Custom board+#--------------------------------------+FILENAME_ADD = _RZG2L_OEM+DEVICE = RZG2L+DDR_TYPE = DDR4+DDR_SIZE = 2GB+SWIZZLE = T1C+else ifeq ("$(BOARD)", "RZG2L_OEM_PMIC")+#--------------------------------------+# RZ/G2L Oem PMIC Custom board+#--------------------------------------+FILENAME_ADD = _RZG2L_OEM_PMIC+DEVICE = RZG2L+DDR_TYPE = DDR4+DDR_SIZE = 2GB_1PCS+SWIZZLE = T1BCelse ifeq ("$(BOARD)", "RZG2L_15MMSQ_DEV")#--------------------------------------# RZ/G2L 15MMSQ Dev board--2.25.1
生成0001-Flash-Writer-add-oem-rzg2l-Custom-board.patch
cp 0001-Flash-Writer-add-oem-rzg2l-Custom-board.patch meta-renesas/meta-rzg2l/recipes-bsp/flash-writer/files/
修改meta-rzg2l/recipes-bsp/flash-writer/flash-writer.bb配方文件，导入0001-Flash-Writer-add-oem-rzg2l-Custom-board.patch，允许选择oem-rzg2l MACHINE时，编译生成客户板子oem-rzg2l的flash-writer固件。
5. 为trusted-firmware-a创建客户oem-rzg2l板子的编译支持补丁
git clone https://github.com/renesas-rz/rzg_trusted-firmware-acd rzg_trusted-firmware-agit checkout v2.9/rzg2cp plat/renesas/rz/board/smarc_2/ plat/renesas/rz/board/oem_g2l -rfcp plat/renesas/rz/board/smarc_pmic_2/ plat/renesas/rz/board/oem_pmic_g2l -rf
完成修改后，创建0001-tf-a-add-oem-rzg2l-custom-borad.patch，该补丁支持在trusted-firmware-a中编译出oem-rzg2l板子的固件。
cp 0001-tf-a-add-oem-rzg2l-custom-borad.patch meta-rzg2l/recipes-bsp/trusted-firmware-a/files/修改meta-rzg2l/recipes-bsp/trusted-firmware-a/trusted-firmware-a.bbappend配方文件，增加选择oem-rzg2l MACHINE时支持0001-tf-a-add-oem-rzg2l-custom-borad.patch的添加和编译：
diff --git a/meta-rzg2l/recipes-bsp/trusted-firmware-a/trusted-firmware-a.bbappend b/meta-rzg2l/recipes-bsp/trusted-firmware-a/trusted-firmware-a.bbappendindex b342698..8cd4c4f 100644--- a/meta-rzg2l/recipes-bsp/trusted-firmware-a/trusted-firmware-a.bbappend+++ b/meta-rzg2l/recipes-bsp/trusted-firmware-a/trusted-firmware-a.bbappend@@ -28,6 +25,10 @@ PMIC_EXTRA_FLAGS_smarc-rzv2l = "BOARD=smarc_pmic_2"PLATFORM_rzv2l-dev = "v2l"EXTRA_FLAGS_rzv2l-dev = "BOARD=dev15_4"+PLATFORM_oem-rzg2l = "g2l"+EXTRA_FLAGS_oem-rzg2l = "BOARD=oem_g2l"+PMIC_EXTRA_FLAGS_oem-rzg2l = "BOARD=oem_pmic_g2l"+PMIC_BUILD_DIR = "${S}/build_pmic"FILES_${PN} = "/boot "Enable trusted-firmware-a recipes build by MACHINE oem-rzg2l:diff --git a/meta-rz-common/recipes-bsp/trusted-firmware-a/trusted-firmware-a.bb b/meta-rz-common/recipes-bsp/trusted-firmware-a/trusted-firmware-a.bbindex ba16b28..8bd5c0a 100644--- a/meta-rz-common/recipes-bsp/trusted-firmware-a/trusted-firmware-a.bb+++ b/meta-rz-common/recipes-bsp/trusted-firmware-a/trusted-firmware-a.bb@@ -22,7 +22,7 @@ SRCREV = "cc18695622e5637ec70ee3ae8eb5e83b09d13804"PV = "v2.9+git"COMPATIBLE_MACHINE_rzg2h = "(ek874|hihope-rzg2m|hihope-rzg2n|hihope-rzg2h)"-COMPATIBLE_MACHINE_rzg2l = "(smarc-rzg2l|rzg2l-dev|smarc-rzg2lc|rzg2lc-dev|smarc-rzg2ul|rzg2ul-dev|smarc-rzv2l|rzv2l-dev)"+COMPATIBLE_MACHINE_rzg2l = "(smarc-rzg2l|rzg2l-dev|smarc-rzg2lc|rzg2lc-dev|smarc-rzg2ul|rzg2ul-dev|smarc-rzv2l|rzv2l-dev|oem-rzg2l)"PLATFORM ?= "rzg"
6. 为u-boot创建客户oem-rzg2l板子的编译支持补丁
cd renesas-u-boot-cipgit checkout v2021.10/rzcp arch/arm/dts/smarc-rzg2l.dts arch/arm/dts/oem-rzg2l.dtscp configs/smarc-rzg2l_defconfig configs/oem-rzg2l_defconfigcp include/configs/smarc-rzg2l.h include/configs/oem-rzg2l.h
完成代码修改，并生成0001-U-Boot-add-oem-rzg2l-custom-board.patch
更多的详细代码修改参见补丁0001-U-Boot-add-oem-rzg2l-custom-board.patch内容。
将补丁拷贝到VLP环境中
cp 0001-U-Boot-add-oem-rzg2l-custom-board.patch meta-rzg2l/recipes-bsp/u-boot/u-boot/7. 为linux-renesas创建客户oem-rzg2l板子的编译支持补丁
git clone https://github.com/renesas-rz/rz_linux-cipcd rz_linux-cipgit checkout rz-5.10-cip41cp arch/arm64/boot/dts/renesas/r9a07g044l2-smarc.dts arch/arm64/boot/dts/renesas/r9a07g044l2-oem.dts修改arch/arm64/boot/dts/renesas/Makefilediff --git a/arch/arm64/boot/dts/renesas/Makefile b/arch/arm64/boot/dts/renesas/Makefileindex 0b41c780bb66..f10acb7138af 100644--- a/arch/arm64/boot/dts/renesas/Makefile+++ b/arch/arm64/boot/dts/renesas/Makefile@@ -90,6 +90,7 @@ dtb-$(CONFIG_ARCH_R9A07G043) += r9a07g043u11-dev.dtbdtb-$(CONFIG_ARCH_R9A07G044) += r9a07g044c2-smarc.dtbdtb-$(CONFIG_ARCH_R9A07G044) += r9a07g044c2-dev.dtbdtb-$(CONFIG_ARCH_R9A07G044) += r9a07g044l2-smarc.dtb+dtb-$(CONFIG_ARCH_R9A07G044) += r9a07g044l2-oem.dtbdtb-$(CONFIG_ARCH_R9A07G044) += r9a07g044l2-dev.dtbdtb-$(CONFIG_ARCH_R9A07G054) += r9a07g054l2-smarc.dtb
完成代码修改，并生成0001-Kernel-add-oem-rzg2l-custom-board.patch。
更多的详细代码修改参见补丁0001-Kernel-add-oem-rzg2l-custom-board.patch内容。
然后回到vlp3.0.6-update2的开发环境中添加配方文件导入该内核补丁
cd vlp3.0.6-updatemkdir meta-renesas/ meta-rzg2l/recipes-kernelmkdir meta-renesas/ meta-rzg2l/recipes-kernel/linux
创建linux-renesas_5.10.bbappend配方文件
touch meta-renesas/ meta-rzg2l/recipes-kernel/linux/ linux-renesas_5.10.bbappend在linux-renesas_5.10.bbappend该配方文件中添加以下内容：
+FILESEXTRAPATHS_prepend := "${THISDIR}/${PN}:"++SRC_URI_append = " \+ file://0001-Kernel-add-RZ-G2L-Low-Cost-Board.patch \+"mkdir meta-renesas/meta-rzg2l/recipes-kernel/linux/linux-renesas/将补丁0001-Kernel-add-oem-rzg2l-custom-board.patch导入VLP中cp 0001-Kernel-add-oem-rzg2l-custom-board.patch /meta-rzg2l/recipes-kernel/linux
继续修改上一级的配方文件meta-rz-common/recipes-kernel/linux/linux-renesas_5.10.bb修改：
diff --git a/meta-rz-common/recipes-kernel/linux/linux-renesas_5.10.bb b/meta-rz-common/recipes-kernel/linux/linux-renesas_5.10.bbindex cacbe7a..c921e1c 100644--- a/meta-rz-common/recipes-kernel/linux/linux-renesas_5.10.bb+++ b/meta-rz-common/recipes-kernel/linux/linux-renesas_5.10.bb@@ -3,7 +3,7 @@ DESCRIPTION = "Linux kernel for the RZG2 based board"require recipes-kernel/linux/linux-yocto.incFILESEXTRAPATHS_prepend := "${THISDIR}/${PN}/:"-COMPATIBLE_MACHINE_rzg2l = "(smarc-rzg2l|rzg2l-dev|smarc-rzg2lc|rzg2lc-dev|smarc-rzg2ul|rzg2ul-dev|smarc-rzv2l|rzv2l-dev)"+COMPATIBLE_MACHINE_rzg2l = "(smarc-rzg2l|rzg2l-dev|smarc-rzg2lc|rzg2lc-dev|smarc-rzg2ul|rzg2ul-dev|smarc-rzv2l|rzv2l-dev|oem-rzg2l)"COMPATIBLE_MACHINE_rzg2h = "(ek874|hihope-rzg2n|hihope-rzg2m|hihope-rzg2h)"COMPATIBLE_MACHINE_rzfive = "(smarc-rzfive|rzfive-dev)"COMPATIBLE_MACHINE_rzv2m = "(rzv2m)"
当选择oem-rzg2l MACHINE时，允许该补丁加入编译。
8. 编译针对客户自己定制的板子添加的oem-rzg2l MACHINE的bsp和linux固件
至此，所有关于oem-rzg2l MACHINE的bsp和linux内核补丁及配方文件修改都已完成。
接下来我们来验证一下各个功能模块的编译：
flash_writer的编译
cd vlp3.0.6-update2TEMPLATECONF=$PWD/meta-renesas/meta-rzg2l/docs/template/conf/ source poky/oe-init-build-env buildcp oss_pkg_rzg_v3.0.6-update2.7z buildcd build7z x oss_pkg_rzg_v3.0.6-update2.7zMACHINE=oem-rzg2l bitbake flash-writer
trusted-firmware-a的编译
MACHINE=oem-rzg2l bitbake trusted-firmware-a
u-boot的编译
MACHINE=oem-rzg2l bitbake u-boot
生成bl2和fip文件
MACHINE=oem-rzg2l bitbake firmware-pack
linux-renesas的编译
MACHINE=oem-rzg2l bitbake linux-renesas
根文件系统rootfs的编译
MACHINE=oem-rzg2l bitbake core-image-weston
9. 检查是否已生成我们需要的所有固件：
ls tmp/deploy/images/oem-rzg2l/
烧录
验证结果：
至此，我们完成了在vlp3.0.6-update2中添加oem-rzg2l MACHINE的所有步骤，该修改的全部sample code将通过补丁0001-Add-oem-rzg2l-Virtual-Custom-Board-Build-base-on-VLP.patch给出。如有需要可以联系我们。
如需了解更详细的使用方法请参考如下网站
https://www.renesas.cn/cn/zh/products/microcontrollers-microprocessors/rz-mpus/rzg2l-getting-started
https://jira-gasg.renesas.eu/confluence/display/REN/Renesas+Wiki
如您在使用瑞萨MCU/MPU产品中有任何问题，可识别下方二维码或复制网址到浏览器中打开，进入瑞萨技术论坛寻找答案或获取在线技术支持。
https://community-ja.renesas.com/zh/forums-groups/mcu-mpu/
1
END
1
推荐阅读
RZ/V2L ISP实现方式及功能简介
RZ/G2L Flash Writer指令介绍
RZ/T2x系列的中断重入实现
