[PATCH v2 0/1] spi: cadence: Add xSPI controller driver support

[Boon Khai Ng]

This patch introduces initial support for the Cadence xSPI controller
in U-Boot.

The driver is ported from the Linux kernel implementation and supports
three operating modes: ACMD, STIG, and Direct. Currently, only the STIG
mode is enabled. The driver has been functionally verified on the Intel
Simics platform and is intended for evaluation and experimental use at
this stage.

---
Changes in v2:
- Squashed the Kconfig and Makefile enablement patch into the main driver
  commit, as requested by the maintainer.
- No functional or behavioral changes to the driver.

Boon Khai Ng (1):
  spi: cadence: Add driver for xSPI

 drivers/spi/Kconfig        |  15 ++
 drivers/spi/Makefile       |   1 +
 drivers/spi/cadence_xspi.c | 449 +++++++++++++++++++++++++++++++++++++
 drivers/spi/cadence_xspi.h | 226 +++++++++++++++++++
 4 files changed, 691 insertions(+)
 create mode 100644 drivers/spi/cadence_xspi.c
 create mode 100644 drivers/spi/cadence_xspi.h

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2.43.7