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authorTao Ren <taoren@fb.com>2018-11-09 01:50:34 +0100
committerJoel Stanley <joel@jms.id.au>2018-12-02 23:47:06 +0100
commitb54a5b19926cfb36e758130de466e2abfc11b9e6 (patch)
tree410c3a62742e99ab098c0eb96df269acccf7d0e9 /arch/arm/boot
parentARM: dts: aspeed: wspoon: Enable iio-hwmon battery (diff)
downloadlinux-b54a5b19926cfb36e758130de466e2abfc11b9e6.tar.xz
linux-b54a5b19926cfb36e758130de466e2abfc11b9e6.zip
ARM: dts: Add Facebook BMC flash layout
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 <taoren@fb.com> Signed-off-by: Joel Stanley <joel@jms.id.au>
Diffstat (limited to 'arch/arm/boot')
-rw-r--r--arch/arm/boot/dts/facebook-bmc-flash-layout.dtsi42
1 files changed, 42 insertions, 0 deletions
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@0 {
+ reg = <0x0 0x60000>;
+ label = "u-boot";
+ };
+
+ u-boot-env@60000 {
+ reg = <0x60000 0x20000>;
+ label = "env";
+ };
+
+ fit@80000 {
+ reg = <0x80000 0x1b80000>;
+ label = "fit";
+ };
+
+ /*
+ * "data0" partition is used by several Facebook BMC platforms
+ * as persistent data store.
+ */
+ data0@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@0 {
+ reg = <0x0 0x2000000>;
+ label = "flash0";
+ };
+};