# \[PATCH\] arm64: dts: ls1012a: Add serial alias for ls1012a-rdb

- From: Kuldeep Singh \<hidden\>
- Date: 2021-09-09 11:12:56 
- List: linux-devicetree
- Page: https://ratatoskr.run/linux-devicetree/2021/09/1501071
- Thread: https://ratatoskr.run/linux-arm-kernel/2021/09/1501071/t.md

```text
U-boot atempts to read serial alias value for ls1012a-rdb but couldn't
do so as it is not initialised and thus, FDT_ERR_NOTFOUND error is
reported while booting linux.

Loading fdt from FIT Image at a0000000 ...
   Description:  ls1012ardb-dtb
     Type:         Flat Device Tree
     Data Start:   0xab111474
     Data Size:    11285 Bytes = 11 KiB
     Architecture: AArch64
     Load Address: 0x90000000
   Loading fdt from 0xab111474 to 0x90000000
   Booting using the fdt blob at 0x90000000
   Uncompressing Kernel Image
   Loading Device Tree to 000000008fffa000, end 000000008ffffc14 ... OK
WARNING: fdt_fixup_stdout: could not read serial0 alias: FDT_ERR_NOTFOUND
NOTICE:  RNG: INSTANTIATED

Starting kernel ...

Fix the above error by specifying serial value to duart.

Signed-off-by: Kuldeep Singh <redacted>
---
 arch/arm64/boot/dts/freescale/fsl-ls1012a-rdb.dts | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm64/boot/dts/freescale/fsl-ls1012a-rdb.dts b/arch/arm64/boot/dts/freescale/fsl-ls1012a-rdb.dts
index 79f155dedb2d..e662677a6e28 100644
--- a/arch/arm64/boot/dts/freescale/fsl-ls1012a-rdb.dts
+++ b/arch/arm64/boot/dts/freescale/fsl-ls1012a-rdb.dts
@@ -15,6 +15,7 @@ / {
 	compatible = "fsl,ls1012a-rdb", "fsl,ls1012a";
 
 	aliases {
+		serial0 = &duart0;
 		mmc0 = &esdhc0;
 		mmc1 = &esdhc1;
 	};
-- 
2.25.1

```