Describe OSPI and QSPI flash partition information through device tree,
this helps to remove passing partition information through the mtdparts
commandline parameter which requires maintaining the partition information
in a string format. J721E SoM has a MT35 64 MiB OSPI flash and MT25 64 MiB
QSPI flash both with sector size of 128 KiB thus the size of the smallest
partition is chosen as 128KiB, the partition names and offsets are chosen
according to the corresponding name and offsets in bootloader.
Signed-off-by: Vaishnav Achath <vaishnav.a@xxxxxx>
---
.../dts/ti/k3-j721e-common-proc-board.dts | 46 +++++++++++++++++++
arch/arm64/boot/dts/ti/k3-j721e-som-p0.dtsi | 46 +++++++++++++++++++
2 files changed, 92 insertions(+)
diff --git a/arch/arm64/boot/dts/ti/k3-j721e-common-proc-board.dts b/arch/arm64/boot/dts/ti/k3-j721e-common-proc-board.dts
index c11c092c1ce0..b6c8d2f1e460 100644
--- a/arch/arm64/boot/dts/ti/k3-j721e-common-proc-board.dts
+++ b/arch/arm64/boot/dts/ti/k3-j721e-common-proc-board.dts
@@ -512,6 +512,52 @@
cdns,tchsh-ns = <60>;
cdns,tslch-ns = <60>;
cdns,read-delay = <2>;
+
+ partitions {
+ compatible = "fixed-partitions";
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ partition@0 {
+ label = "qspi.tiboot3";
+ reg = <0x0 0x80000>;
+ };
+
+ partition@80000 {
+ label = "qspi.tispl";
+ reg = <0x80000 0x200000>;
+ };
+
+ partition@280000 {
+ label = "qspi.u-boot";
+ reg = <0x280000 0x400000>;
+ };
+
+ partition@680000 {
+ label = "qspi.env";
+ reg = <0x680000 0x20000>;
+ };
+
+ partition@6a0000 {
+ label = "qspi.env.backup";
+ reg = <0x6a0000 0x20000>;
+ };
+
+ partition@6c0000 {
+ label = "qspi.sysfw";
+ reg = <0x6c0000 0x100000>;
+ };
+
+ partition@800000 {
+ label = "qspi.rootfs";
+ reg = <0x800000 0x37c0000>;
+ };
+
+ partition@3fe0000 {
+ label = "qspi.phypattern";
+ reg = <0x3fe0000 0x20000>;
+ };
+ };
};
};
diff --git a/arch/arm64/boot/dts/ti/k3-j721e-som-p0.dtsi b/arch/arm64/boot/dts/ti/k3-j721e-som-p0.dtsi
index e289d5b44356..1472c11d6660 100644
--- a/arch/arm64/boot/dts/ti/k3-j721e-som-p0.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-j721e-som-p0.dtsi
@@ -182,6 +182,52 @@
cdns,tchsh-ns = <60>;
cdns,tslch-ns = <60>;
cdns,read-delay = <0>;
+
+ partitions {
+ compatible = "fixed-partitions";
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ partition@0 {
+ label = "ospi.tiboot3";
+ reg = <0x0 0x80000>;
+ };
+
+ partition@80000 {
+ label = "ospi.tispl";
+ reg = <0x80000 0x200000>;
+ };
+
+ partition@280000 {
+ label = "ospi.u-boot";
+ reg = <0x280000 0x400000>;
+ };
+
+ partition@680000 {
+ label = "ospi.env";
+ reg = <0x680000 0x20000>;
+ };
+
+ partition@6a0000 {
+ label = "ospi.env.backup";
+ reg = <0x6a0000 0x20000>;
+ };
+
+ partition@6c0000 {
+ label = "ospi.sysfw";
+ reg = <0x6c0000 0x100000>;
+ };
+
+ partition@800000 {
+ label = "ospi.rootfs";
+ reg = <0x800000 0x37c0000>;
+ };
+
+ partition@3fe0000 {
+ label = "ospi.phypattern";
+ reg = <0x3fe0000 0x20000>;
+ };
+ };
};
};
--
2.17.1
