| From: |
| Binbin Zhou <zhoubinbin-AT-loongson.cn> |
| To: |
| Binbin Zhou <zhoubb.aaron-AT-gmail.com>, Huacai Chen <chenhuacai-AT-loongson.cn>, Rob Herring <robh+dt-AT-kernel.org>, Krzysztof Kozlowski <krzk+dt-AT-kernel.org>, Conor Dooley <conor+dt-AT-kernel.org>, Ulf Hansson <ulf.hansson-AT-linaro.org> |
| Subject: |
| [PATCH v2 0/4] LoongArch: Introduce the Loongson-2K MMC host controller driver |
| Date: |
| Wed, 07 May 2025 15:28:04 +0800 |
| Message-ID: |
| <cover.1746581751.git.zhoubinbin@loongson.cn> |
| Cc: |
| Huacai Chen <chenhuacai-AT-kernel.org>, Xuerui Wang <kernel-AT-xen0n.name>, loongarch-AT-lists.linux.dev, devicetree-AT-vger.kernel.org, linux-mmc-AT-vger.kernel.org, Binbin Zhou <zhoubinbin-AT-loongson.cn> |
| Archive-link: |
| Article |
Hi all:
This patchset introduce the MMC host controller on Loongson-2K series
CPUs.
They are similar, except for the interface characteristics and the use of
DMA engine, specifically, the Loongson-2K0500/Loongson-2K1000 use an
externally shared APBDMA engine, while the Loongson-2K2000 uses an
internally exclusive DMA.
Based on this, I'm splitting the driver into two patches.
List of the patchset:
Patch1: bindings for Loongson-2K0500/Loongson-2K1000;
Patch2: driver for MMC controller using externally shared APBDMA engine;
Patch3: bindings for Loongson-2K2000;
Patch4: driver for MMC controller using internally exclusive DMA.
Thanks.
-------
V2:
patch(1/4):
- Add reg define for each reg entry.
patch(2/4):
- Put all code in the c-file;
- Use mmc_from_priv() instead of host->mmc;
- Use sdio_signal_irq() instead of mmc_signal_sdio_irq();
- Use devm_mmc_alloc_host() instead of mmc_alloc_host();
- Use mmc_regulator_get_supply();
patch(4/4):
- Add fix_cmd_interrupt function which is needed by Loongson-2K2000.
Link to V1:
https://lore.kernel.org/linux-mmc/cover.1744273956.git.zh...
Binbin Zhou (4):
dt-bindings: mmc: Add Loongson-2K SD/SDIO/eMMC controller binding
mmc: loongson2: Add Loongson-2K SD/SDIO controller driver
dt-bindings: mmc: loongson,ls2k-mmc: Add compatible for
Loongson-2K2000
mmc: loongson2: Add Loongson-2K2000 SD/SDIO/eMMC controller driver
.../bindings/mmc/loongson,ls2k-mmc.yaml | 112 ++
MAINTAINERS | 7 +
drivers/mmc/host/Kconfig | 13 +
drivers/mmc/host/Makefile | 1 +
drivers/mmc/host/loongson2-mmc.c | 1007 +++++++++++++++++
5 files changed, 1140 insertions(+)
create mode 100644 Documentation/devicetree/bindings/mmc/loongson,ls2k-mmc.yaml
create mode 100644 drivers/mmc/host/loongson2-mmc.c
base-commit: 9e12816f9a6195f1f5b7c5dc2e388c2458411b97
--
2.47.1
