Re: [PATCH v2 2/2] spi: spi-mem: Add Realtek SPI flash controller driver

[Kuan-Wei Chiu <visitorckw@gmail.com>]

Hi Yu-Chun,

On Sun, Sep 06, 2026 at 10:57:55PM +0800, Yu-Chun Lin wrote:
> From: Jyan Chou <jyanchou@realtek.com>
> 
> Add a spi-mem driver for the SPI Flash Controller (SFC) found on Realtek
> DHC SoC. SFC supports Dual I/O.
> 
> Implement the exec_op API for regular control commands and the dirmap API
> for hardware-accelerated read/write operations.
> 
> The controller is described by three register ranges. The first one (ctrl)
> holds the control registers. The second one (dma) holds the DMA engine
> registers, used to transfer the payload between the flash and main memory.
> The third range is the memory aperture (dirmap) that maps the flash
> contents.
> 
> Signed-off-by: Jyan Chou <jyanchou@realtek.com>
> Co-developed-by: Yu-Chun Lin <eleanor.lin@realtek.com>
> Signed-off-by: Yu-Chun Lin <eleanor.lin@realtek.com>
> ---
> Changes in v2:
> - None.
> ---
>  MAINTAINERS               |   6 +
>  drivers/spi/Kconfig       |  10 +
>  drivers/spi/Makefile      |   1 +
>  drivers/spi/spi-rtk-nor.c | 637 ++++++++++++++++++++++++++++++++++++++
>  4 files changed, 654 insertions(+)
>  create mode 100644 drivers/spi/spi-rtk-nor.c
> 
> diff --git a/MAINTAINERS b/MAINTAINERS
> index 3a19da74d00c..705f7ddf792f 100644
> --- a/MAINTAINERS
> +++ b/MAINTAINERS
> @@ -23011,6 +23011,12 @@ S:	Maintained
>  F:	Documentation/devicetree/bindings/spi/realtek,rtl9301-snand.yaml
>  F:	drivers/spi/spi-realtek-rtl-snand.c
>  
> +REALTEK SPI-NOR
> +M:	Jyan Chou <jyanchou@realtek.com>
> +M:	Yu-Chun <eleanor.lin@realtek.com>

nit: Yu-Chun -> Yu-Chun Lin ?

Regards,
Kuan-Wei

> +S:	Supported
> +F:	drivers/spi/spi-rtk-nor.c
> +
>  REALTEK SYSTIMER DRIVER
>  M:	Hao-Wen Ting <haowen.ting@realtek.com>
>  S:	Maintained
> diff --git a/drivers/spi/Kconfig b/drivers/spi/Kconfig
> index 357cebef9917..4b758ca31490 100644