mmc: loongson2: Add Loongson-2K SD/SDIO controller driver
The MMC controllers on the Loongson-2K series CPUs are similar, except for the interface characteristics and the use of DMA controllers. This patch describes the MMC controllers on the Loongson-2K0500/2K1000, with the distinguishing feature being the use 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/c0a9f0c0279d8e09165c6e2d694b0c35f7fc7e31.1750765495.git.zhoubinbin@loongson.cn Signed-off-by:
Ulf Hansson <ulf.hansson@linaro.org>
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