[PATCH v3 7/7] mtd: rawnand: loongson: Add Loongson-2K1000 NAND controller support

[Miquel Raynal]

On 21/08/2025 at 14:39:21 +08, Binbin Zhou <zhoubinbin at loongson.cn> wrote:

> The Loongson-2K1000 NAND controller is also similar to the Loongson-1C.
>
> It supports a maximum capacity of 16GB FLASH per chip with a maximum
> page size of 8KB, and it supports up to 4 chip selects and 4 RDY
> signals.
>
> The key difference from the Loongson-2K0500 is that it requires explicit
> configuration of the DMA control route. Typically, it is configured as
> APBDMA0.
>
> Signed-off-by: Binbin Zhou <zhoubinbin at loongson.cn>
> ---
>  .../mtd/nand/raw/loongson-nand-controller.c   | 48 +++++++++++++++++++
>  1 file changed, 48 insertions(+)
>
> diff --git a/drivers/mtd/nand/raw/loongson-nand-controller.c b/drivers/mtd/nand/raw/loongson-nand-controller.c
> index 7b331d0ca2f0..6610c239f721 100644
> --- a/drivers/mtd/nand/raw/loongson-nand-controller.c
> +++ b/drivers/mtd/nand/raw/loongson-nand-controller.c
> @@ -73,9 +73,18 @@
>  #define LOONGSON_NAND_READ_ID_TIMEOUT_US	5000
>  
>  #define LOONGSON_NAND_64BIT_DMA		BIT(0)
> +#define LOONGSON_NAND_DMA_CONFIG	BIT(1)

You're reusing this flags member, so it's fine, please ignore the
previous comment (except the style issue).

...

> +	regs = devm_platform_ioremap_resource(pdev, 2);

Would it be clearer to get the resource by name? (not a strong request)

Thanks
Miquèl