From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jonas Gorski Subject: [PATCH V2 4/5] dt-bindings: mtd: describe BCM963XX ImageTag format and usage Date: Thu, 28 Mar 2019 15:19:09 +0100 Message-ID: <20190328141910.5723-5-jonas.gorski@gmail.com> References: <20190328141910.5723-1-jonas.gorski@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <20190328141910.5723-1-jonas.gorski@gmail.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-mtd" Errors-To: linux-mtd-bounces+gldm-linux-mtd-36=gmane.org@lists.infradead.org To: devicetree@vger.kernel.org, linux-mtd@lists.infradead.org Cc: Mark Rutland , Florian Fainelli , Boris Brezillon , Richard Weinberger , Marek Vasut , Rob Herring , bcm-kernel-feedback-list@broadcom.com, Brian Norris , David Woodhouse List-Id: devicetree@vger.kernel.org Describe how to use the BCM963XX ImageTag format in a mixed flash layout environment. Reviewed-by: Rob Herring Signed-off-by: Jonas Gorski --- .../mtd/partitions/brcm,bcm963xx-imagetag.txt | 45 ++++++++++++++++++++++ 1 file changed, 45 insertions(+) create mode 100644 Documentation/devicetree/bindings/mtd/partitions/brcm,bcm963xx-imagetag.txt diff --git a/Documentation/devicetree/bindings/mtd/partitions/brcm,bcm963xx-imagetag.txt b/Documentation/devicetree/bindings/mtd/partitions/brcm,bcm963xx-imagetag.txt new file mode 100644 index 000000000000..f8b7418ed817 --- /dev/null +++ b/Documentation/devicetree/bindings/mtd/partitions/brcm,bcm963xx-imagetag.txt @@ -0,0 +1,45 @@ +Broadcom BCM963XX ImageTag Partition Container +============================================== + +Some Broadcom BCM63XX SoC based devices contain additional, non discoverable +partitions or non standard bootloader partition sizes. For these a mixed layout +needs to be used with an explicit firmware partition. + +The BCM963XX ImageTag is a simple firmware header describing the offsets and +sizes of the rootfs and kernel parts contained in the firmware. + +Required properties: +- compatible : must be "brcm,bcm963xx-imagetag" + +Example: + +flash@1e000000 { + compatible = "cfi-flash"; + reg = <0x1e000000 0x2000000>; + bank-width = <2>; + + partitions { + compatible = "fixed-partitions"; + #address-cells = <1>; + #size-cells = <1>; + + cfe@0 { + reg = <0x0 0x10000>; + read-only; + }; + + firmware@10000 { + reg = <0x10000 0x7d0000>; + compatible = "brcm,bcm963xx-imagetag"; + }; + + caldata@7e0000 { + reg = <0x7e0000 0x10000>; + read-only; + }; + + nvram@7f0000 { + reg = <0x7f0000 0x10000>; + }; + }; +}; -- 2.13.2 ______________________________________________________ Linux MTD discussion mailing list http://lists.infradead.org/mailman/listinfo/linux-mtd/