diff options
| author | Chi-Wen Weng <cwweng@nuvoton.com> | 2026-07-31 10:38:18 +0800 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2026-07-31 21:29:22 +0100 |
| commit | 78b16af159ae6d1f5506697c1f08d8172afdc037 (patch) | |
| tree | 834e730e8be354f203e763f301e4f85514577f98 /drivers/spi/Kconfig | |
| parent | d458c752cf6cdaa2e83c2758e40fc3ab496d3ab8 (diff) | |
spi: ma35d1-qspi: Add Nuvoton MA35D1 QSPI controller support
Add SPI controller driver support for the Quad SPI controller found in
Nuvoton MA35D1 SoCs.
The controller provides two native chip selects and supports standard SPI
and spi-mem operations, including single-bit full-duplex transfers and
dual or quad half-duplex transfers. Implement 8-bit PIO transfers,
per-operation clock configuration, clock and reset handling, and direct
execution of SPI memory operations.
Limit individual transfers to 4 KiB and SPI messages to 8 KiB to keep the
PIO polling path bounded. Read the optional num-cs property and fall back
to the hardware default of two chip selects when it is not present.
Active-high chip select and DMA transfers are not supported by this
initial implementation.
Signed-off-by: Chi-Wen Weng <cwweng@nuvoton.com>
Link: https://patch.msgid.link/20260731023818.1626075-3-cwweng.linux@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'drivers/spi/Kconfig')
| -rw-r--r-- | drivers/spi/Kconfig | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/spi/Kconfig b/drivers/spi/Kconfig index 8782514bb89b..b367aa69f4ff 100644 --- a/drivers/spi/Kconfig +++ b/drivers/spi/Kconfig @@ -694,6 +694,16 @@ config SPI_LJCA This driver can also be built as a module. If so, the module will be called spi-ljca. +config SPI_MA35D1_QSPI + tristate "Nuvoton MA35D1 QSPI controller" + depends on ARCH_MA35 || COMPILE_TEST + help + This enables support for the Quad SPI controller found in + Nuvoton MA35D1 SoCs. + + The controller supports SPI memory devices such as SPI NOR and + SPI NAND flashes in single, dual and quad I/O modes. + config SPI_MESON_SPICC tristate "Amlogic Meson SPICC controller" depends on COMMON_CLK |