[PATCH 0/2] serial: 8250_dw: Add support for UltraRISC DP1000 uart

Jia Wang wangjia at ultrarisc.com
Sun Mar 15 18:36:17 PDT 2026


This patch series adds support for the UltraRISC DP1000 UART controller.

The series includes two patches:
1. Update device tree bindings to document the DP1000 UART compatible string
   and required properties.
2. Add driver support in the 8250_dw driver by handling the DP1000-specific
   initialization and configuration.

The patches have been tested on Ultrarisc DP1000 development board with
Linux 7.0-rc2, verifying basic UART functionality and runtime suspend/resume.

Signed-off-by: Jia Wang <wangjia at ultrarisc.com>
---
Jia Wang (1):
      dt-bindings: serial: update bindings of ultrarisc dp1000 uart

Zhang Xincheng (1):
      riscv: ultrarisc: 8250_dw: support DP1000 uart

 .../devicetree/bindings/serial/snps-dw-apb-uart.yaml         |  2 ++
 drivers/tty/serial/8250/8250_dw.c                            | 12 ++++++++++++
 2 files changed, 14 insertions(+)
---
base-commit: af4e9ef3d78420feb8fe58cd9a1ab80c501b3c08
change-id: 20260309-ultrarisc-serial-64ff637edf26

Best regards,
--  
Jia Wang <wangjia at ultrarisc.com>




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