[PATCH v2 0/8] mtd: rawnand: loongson: Add Loongson-2K nand controller support

From: Binbin Zhou <zhoubinbin@loongson.cn>
To: Binbin Zhou <zhoubb.aaron@gmail.com>,
	Huacai Chen <chenhuacai@loongson.cn>,
	Rob Herring <robh+dt@kernel.org>,
	Krzysztof Kozlowski <krzk+dt@kernel.org>,
	Conor Dooley <conor+dt@kernel.org>,
	Keguang Zhang <keguang.zhang@gmail.com>,
	Miquel Raynal <miquel.raynal@bootlin.com>,
	Richard Weinberger <richard@nod.at>,
	Vignesh Raghavendra <vigneshr@ti.com>
Cc: Huacai Chen <chenhuacai@kernel.org>,
	Xuerui Wang <kernel@xen0n.name>,
	loongarch@lists.linux.dev, devicetree@vger.kernel.org,
	linux-mtd@lists.infradead.org,
	Binbin Zhou <zhoubinbin@loongson.cn>
Subject: [PATCH v2 0/8] mtd: rawnand: loongson: Add Loongson-2K nand controller support
Date: Mon, 11 Aug 2025 14:02:24 +0800	[thread overview]
Message-ID: <cover.1754890670.git.zhoubinbin@loongson.cn> (raw)

Hi all:

This patchset adds support for the Loongson-2K0500/Loongson-2K1000 NAND
controllers, which are similar to the Loongson-1C NAND controller.

They support a maximum capacity of 16GB FLASH per chip, with a maximum
page size of 8KB. The chip supports up to 4 chip selects and 4 RDY signals.

The key difference between the Loongson-2K NAND controllers is that the
Loongson-2K1000 explicitly configures the DMA controller routing, while
the Loongson-2K0500 defaults to using APBDMA0.

Summary of the patchset:
Ptach 1-2: Rename all prefixes from ls1x to loongson
Patch 3: Add 6-byte NAND ID reading
Patch 4: Add chip select support
Patch 5-6: Add Loongson-2K0500 NAND controller support
Patch 7-8: Add Loongson-2K1000 NAND controller support

Thanks.

-------
V2:
Based on linux-mtd/nand/next.
Patch (5/8):
  - Add Acked-by tag from Rob, thanks;
Patch (7/8):
  - Update reg-names attribute description.

Link to V1:
https://lore.kernel.org/all/cover.1753166096.git.zhoubinbin@loongson.cn/

Binbin Zhou (7):
  mtd: rawnand: loongson1: Rename the prefix from ls1x to loongson
  mtd: rawnand: loongson: Rename loongson1 to loongson
  mtd: rawnand: loongson: Add nand chip select support
  dt-bindings: mtd: loongson,ls1b-nand-controller: Document the
    Loongson-2K0500 NAND controller
  mtd: rawnand: loongson: Add Loongson-2K0500 NAND controller support
  dt-bindings: mtd: loongson,ls1b-nand-controller: Document the
    Loongson-2K1000 NAND controller
  mtd: rawnand: loongson: Add Loongson-2K1000 NAND controller support

Keguang Zhang (1):
  mtd: rawnand: loongson: Add 6-byte NAND ID reading support

 .../mtd/loongson,ls1b-nand-controller.yaml    |   56 +-
 MAINTAINERS                                   |    2 +-
 drivers/mtd/nand/raw/Kconfig                  |    8 +-
 drivers/mtd/nand/raw/Makefile                 |    2 +-
 .../mtd/nand/raw/loongson-nand-controller.c   | 1032 +++++++++++++++++
 .../mtd/nand/raw/loongson1-nand-controller.c  |  836 -------------
 6 files changed, 1091 insertions(+), 845 deletions(-)
 create mode 100644 drivers/mtd/nand/raw/loongson-nand-controller.c
 delete mode 100644 drivers/mtd/nand/raw/loongson1-nand-controller.c

base-commit: fb2fae70e7e985c4acb1ad96110d8b98bb64a87c
-- 
2.47.3

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