mmc: loongson2: Add Loongson-2K2000 SD/SDIO/eMMC controller driver

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This patch describes the two MMC controllers of the Loongson-2K2000 SoC,
one providing an eMMC interface and the other exporting an SD/SDIO
interface.

Compared to the Loongson-2K1000's MMC controllers, their internals are
similar, except that we use an internally exclusive DMA engine instead of
an externally shared APBDMA engine.

Signed-off-by: Binbin Zhou <zhoubinbin@loongson.cn>
Reviewed-by: Huacai Chen <chenhuacai@loongson.cn>
Link: https://lore.kernel.org/r/1df46b976abd36003bd553ad8a039e5c97369df0.1750765495.git.zhoubinbin@loongson.cn
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>

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Binbin Zhou 2025-06-24 19:58:40 +08:00 • committed by Ulf Hansson

parent 96e72886a4

commit d0f8e961de

1 changed files with 231 additions and 0 deletions

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drivers/mmc/host/loongson2-mmc.c

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