Commit 21157720 authored by Binbin Zhou's avatar Binbin Zhou Committed by Ulf Hansson
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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: default avatarBinbin Zhou <zhoubinbin@loongson.cn>
Reviewed-by: default avatarHuacai Chen <chenhuacai@loongson.cn>
Link: https://lore.kernel.org/r/c0a9f0c0279d8e09165c6e2d694b0c35f7fc7e31.1750765495.git.zhoubinbin@loongson.cn


Signed-off-by: default avatarUlf Hansson <ulf.hansson@linaro.org>
parent fe62ee33

MAINTAINERS

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@@ -14180,6 +14180,7 @@ M: Binbin Zhou <zhoubinbin@loongson.cn> 
L:	linux-mmc@vger.kernel.org

S:	Maintained

F:	Documentation/devicetree/bindings/mmc/loongson,ls2k0500-mmc.yaml

F:	drivers/mmc/host/loongson2-mmc.c









LOONGSON-2 SOC SERIES PM DRIVER









M:	Yinbo Zhu <zhuyinbo@loongson.cn>
































drivers/mmc/host/Kconfig



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@@ -1111,6 +1111,19 @@ config MMC_OWL







	  This selects support for the SD/MMC Host Controller on









	  Actions Semi Owl SoCs.



















config MMC_LOONGSON2









	tristate "Loongson-2K SD/SDIO/eMMC Host Interface support"









	depends on LOONGARCH || COMPILE_TEST









	depends on HAS_DMA









	help









	  This selects support for the SD/SDIO/eMMC Host Controller on









	  Loongson-2K series CPUs.



















	  To compile this driver as a module, choose M here: the









	  module will be called mmc_loongson2.



















	  If unsure, say N.



















config MMC_SDHCI_EXTERNAL_DMA









	bool










































drivers/mmc/host/Makefile



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@@ -72,6 +72,7 @@ obj-$(CONFIG_MMC_USDHI6ROL0)	+= usdhi6rol0.o







obj-$(CONFIG_MMC_TOSHIBA_PCI)	+= toshsd.o









obj-$(CONFIG_MMC_BCM2835)	+= bcm2835.o









obj-$(CONFIG_MMC_OWL)		+= owl-mmc.o









obj-$(CONFIG_MMC_LOONGSON2)	+= loongson2-mmc.o



















obj-$(CONFIG_MMC_REALTEK_PCI)	+= rtsx_pci_sdmmc.o









obj-$(CONFIG_MMC_REALTEK_USB)	+= rtsx_usb_sdmmc.o
































drivers/mmc/host/loongson2-mmc.c
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