This patch has following updates, specific to MTD/NAND DT
- update MTD NAND partition table to keep compatibility between
different boards and mainline u-boot.
- prefix 'NAND.' in names of NAND device MTD partitions to differentiate them
from other MTD device partitions (like NOR and QSPI)
Partition_Name Partition_Size
/dev/mtd0 NAND.SPL 1 block-size*
/dev/mtd1 NAND.SPL.backup1 1 block-size*
/dev/mtd2 NAND.SPL.backup2 1 block-size*
/dev/mtd3 NAND.SPL.backup3 1 block-size*
/dev/mtd5 NAND.u-boot-spl-os 2 block-size* [for falcon boot]
/dev/mtd4 NAND.u-boot 1 MB
/dev/mtd6 NAND.u-boot-env 1 block-size*
/dev/mtd7 NAND.u-boot-env.backup1 1 block-size*
/dev/mtd8 NAND.kernel till 0xA00000
/dev/mtd9 NAND.file-system till end of device
* am335x-evm uses NAND device with block-size=128KiB
Signed-off-by: Pekon Gupta <pekon@xxxxxx>
---
arch/arm/boot/dts/am335x-evm.dts | 48 +++++++++++++++++++++-------------------
1 file changed, 25 insertions(+), 23 deletions(-)
diff --git a/arch/arm/boot/dts/am335x-evm.dts b/arch/arm/boot/dts/am335x-evm.dts
index 7e6c64e..17c3cc0 100644
--- a/arch/arm/boot/dts/am335x-evm.dts
+++ b/arch/arm/boot/dts/am335x-evm.dts
@@ -460,50 +460,52 @@
gpmc,wait-monitoring-ns = <0>;
gpmc,wr-access-ns = <40>;
gpmc,wr-data-mux-bus-ns = <0>;
-
- #address-cells = <1>;
- #size-cells = <1>;
elm_id = <&elm>;
-
/* MTD partition table */
+ /* All SPL-* partitions are sized to minimal length
+ * which can be independently programmable. For
+ * NAND flash this is equal to size of erase-block */
+ #address-cells = <1>;
+ #size-cells = <1>;
partition@0 {
- label = "SPL1";
+ label = "NAND.SPL";
reg = <0x00000000 0x000020000>;
};
-
partition@1 {
- label = "SPL2";
+ label = "NAND.SPL.backup1";
reg = <0x00020000 0x00020000>;
};
-
partition@2 {
- label = "SPL3";
+ label = "NAND.SPL.backup2";
reg = <0x00040000 0x00020000>;
};
-
partition@3 {
- label = "SPL4";
+ label = "NAND.SPL.backup3";
reg = <0x00060000 0x00020000>;
};
-
partition@4 {
- label = "U-boot";
- reg = <0x00080000 0x001e0000>;
+ label = "NAND.u-boot-spl";
+ reg = <0x00080000 0x00040000>;
};
-
partition@5 {
- label = "environment";
- reg = <0x00260000 0x00020000>;
+ label = "NAND.u-boot";
+ reg = <0x000C0000 0x00100000>;
};
-
partition@6 {
- label = "Kernel";
- reg = <0x00280000 0x00500000>;
+ label = "NAND.u-boot-env";
+ reg = <0x001C0000 0x00020000>;
};
-
partition@7 {
- label = "File-System";
- reg = <0x00780000 0x0F880000>;
+ label = "NAND.u-boot-env.backup1";
+ reg = <0x001E0000 0x00020000>;
+ };
+ partition@8 {
+ label = "NAND.kernel";
+ reg = <0x00200000 0x00800000>;
+ };
+ partition@9 {
+ label = "NAND.file-system";
+ reg = <0x00A00000 0x0F600000>;
};
};
};
--
1.8.5.1.163.gd7aced9
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