From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tao Ren Date: Thu, 8 Nov 2018 16:50:34 -0800 Subject: [PATCH v3 1/2] ARM: dts: Add Facebook BMC flash layout Message-ID: <20181109005034.210138-1-taoren@fb.com> List-Id: To: linux-aspeed@lists.ozlabs.org MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit This is the layout used by Facebook BMC systems. It describes the fixed flash layout of a 32MB mtd device. Signed-off-by: Tao Ren --- Changes in v3: - adding comments explaining why "data0" and "flash0" partitions are needed. Changes in v2: - adding facebook copyright. .../boot/dts/facebook-bmc-flash-layout.dtsi | 42 +++++++++++++++++++ 1 file changed, 42 insertions(+) create mode 100644 arch/arm/boot/dts/facebook-bmc-flash-layout.dtsi diff --git a/arch/arm/boot/dts/facebook-bmc-flash-layout.dtsi b/arch/arm/boot/dts/facebook-bmc-flash-layout.dtsi new file mode 100644 index 000000000000..87bb8b576250 --- /dev/null +++ b/arch/arm/boot/dts/facebook-bmc-flash-layout.dtsi @@ -0,0 +1,42 @@ +// SPDX-License-Identifier: GPL-2.0+ +// Copyright (c) 2018 Facebook Inc. + +partitions { + compatible = "fixed-partitions"; + #address-cells = <1>; + #size-cells = <1>; + + u-boot at 0 { + reg = <0x0 0x60000>; + label = "u-boot"; + }; + + u-boot-env at 60000 { + reg = <0x60000 0x20000>; + label = "env"; + }; + + fit at 80000 { + reg = <0x80000 0x1b80000>; + label = "fit"; + }; + + /* + * "data0" partition is used by several Facebook BMC platforms + * as persistent data store. + */ + data0 at 1c00000 { + reg = <0x1c00000 0x400000>; + label = "data0"; + }; + + /* + * Although the master partition can be created by enabling + * MTD_PARTITIONED_MASTER option, below "flash0" partition is + * explicitly created to avoid breaking legacy applications. + */ + flash0 at 0 { + reg = <0x0 0x2000000>; + label = "flash0"; + }; +}; -- 2.17.1