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serial/xlnx_ps: add common Xilinx UART Peripheral System (XUARTPS) support

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This PR adds complete driver support for the Xilinx UART Peripheral System (XUARTPS)
in the NuttX serial driver framework. The implementation includes the core driver code
(uart_xlnx_ps.c), configuration files (Kconfig-xlnxps), header definitions (uart_xlnx_ps.h),
and integration with the existing NuttX build system (CMakeLists.txt, Make.defs, Kconfig).

The driver supports UART0 configuration with customizable parameters (base address,
clock frequency, IRQ number, baud rate, parity, data bits, stop bits), RX/TX buffer sizing,
hardware flow control (RTS/CTS), interrupt-driven data transfer, and console mapping for XUARTPS UART0.
It also provides standard serial driver operations (setup, shutdown, attach/detach, ioctl, send/receive)
and early serial initialization for boot-time console access.

Signed-off-by: chao an <anchao.archer@bytedance.com>
This commit is contained in:
chao an
2026-02-26 16:25:38 +08:00
committed by Alan C. Assis
parent 18be6955c6
commit cfd1771981
6 changed files with 1473 additions and 0 deletions
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drivers/serial/Kconfig
+8
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@@ -114,6 +114,14 @@ if UART_PL011
source "drivers/serial/Kconfig-pl011"
endif
menuconfig UART_XLNXPS
bool "Xilinx UART Peripheral System (XUARTPS) Chip support"
default n
if UART_XLNXPS
source "drivers/serial/Kconfig-xlnxps"
endif # UART_XLNXPS
menuconfig CMSDK_UART
bool "CMSDK UART Chip support"
select ARCH_HAVE_SERIAL_TERMIOS