[PATCH v1 0/2] Add StarFive JHB100 DWCMSHC controller support
From: Changhuang Liang
Date: Sat Sep 19 2026 - 05:47:02 EST
Add DWCMSHC controller driver for StarFive JHB100 SoC.
This series has been tested on the JHB100 EVB1 board.
Due to syscon limitations, it is necessary to use dma-ranges
to restrict the DMA address space of the eMMC controller to:
[0x400000000 - 0x4ffffffff]
bus_nioc_4g: bus_nioc_4g {
compatible = "simple-bus";
#address-cells = <2>;
#size-cells = <2>;
dma-noncoherent;
ranges;
dma-ranges = <0x4 0x00000000 0x0 0x40000000 0x1 0x0>,
<0x4 0x00000000 0x4 0x00000000 0x1 0x0>;
emmc0: mmc@11b00000 {
compatible = "starfive,jhb100-dwcmshc";
reg = <0x0 0x11b00000 0x0 0x10000>;
};
};
Changhuang Liang (2):
dt-bindings: mmc: snps,dwcmshc-sdhci: Add starfive,jhb100-dwcmshc
mmc: sdhci-of-dwcmshc: Add support for StarFive JHB100
.../bindings/mmc/snps,dwcmshc-sdhci.yaml | 74 +++++++-
drivers/mmc/host/sdhci-of-dwcmshc.c | 158 ++++++++++++++++++
2 files changed, 228 insertions(+), 4 deletions(-)
--
2.25.1