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[86.9.131.95]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-4409d29ba29sm85440365e9.7.2025.04.26.01.50.44 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 26 Apr 2025 01:50:44 -0700 (PDT) Date: Sat, 26 Apr 2025 09:50:43 +0100 From: Stafford Horne To: Ann Yun Cc: jonas@southpole.se, stefan.kristiansson@saunalahti.fi, corbet@lwn.net, linux-openrisc@vger.kernel.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH] Documentation:openrisc: Add build instructions with initramfs Message-ID: References: <20250425201018.12756-1-by.ann.yun@gmail.com> Precedence: bulk X-Mailing-List: linux-openrisc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20250425201018.12756-1-by.ann.yun@gmail.com> On Fri, Apr 25, 2025 at 04:10:18PM -0400, Ann Yun wrote: > Mention how to include initramfs when building the kernel > > Signed-off-by: Ann Yun > --- > Documentation/arch/openrisc/openrisc_port.rst | 4 ++++ > 1 file changed, 4 insertions(+) > > diff --git a/Documentation/arch/openrisc/openrisc_port.rst b/Documentation/arch/openrisc/openrisc_port.rst > index a8f307a3b499..4ab28879d7ed 100644 > --- a/Documentation/arch/openrisc/openrisc_port.rst > +++ b/Documentation/arch/openrisc/openrisc_port.rst > @@ -40,6 +40,10 @@ Build the Linux kernel as usual:: > make ARCH=openrisc CROSS_COMPILE="or1k-linux-" defconfig > make ARCH=openrisc CROSS_COMPILE="or1k-linux-" > > +If you want to embed initramfs in the kernel, also pass ``CONFIG_INITRAMFS_SOURCE``. For example:: > + > + make ARCH=openrisc CROSS_COMPILE="or1k-linux-" CONFIG_INITRAMFS_SOURCE="path/to/rootfs path/to/devnodes" > + I think this is good, but maybe we can mention to refer to Documentation/filesystems/ramfs-rootfs-initramfs.rst for more details on this? Also, it may be helpful to mention we can get pre-built busybox rootfs images here: https://github.com/stffrdhrn/or1k-rootfs-build/releases But if we do that then it would be better to show how to use thos rootfs images, which maybe something better we have in our openrisc/tutorials[0]. -Stafford [0] https://github.com/openrisc/tutorials > 3) Running on FPGA (optional) > > The OpenRISC community typically uses FuseSoC to manage building and programming > -- > 2.37.2 >