D55097.diff
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	diff --git a/sys/arm/allwinner/aw_mmc.h b/sys/arm/allwinner/aw_mmc.h
	--- a/sys/arm/allwinner/aw_mmc.h
	+++ b/sys/arm/allwinner/aw_mmc.h
	@@ -169,6 +169,10 @@
	/* AW_MMC_NTSR */
	#define AW_MMC_NTSR_MODE_SELECT (1U << 31)

	+/* AW_MMC_HWRST */
	+#define AW_MMC_HWRST_ASSERT (0U << 0)
	+#define AW_MMC_HWRST_DEASSERT (1U << 0)
	+
	/* IDMA CONTROLLER BUS MOD BIT FIELD */
	#define AW_MMC_DMAC_IDMAC_SOFT_RST (1U << 0)
	#define AW_MMC_DMAC_IDMAC_FIX_BURST (1U << 1)
	diff --git a/sys/arm/allwinner/aw_mmc.c b/sys/arm/allwinner/aw_mmc.c
	--- a/sys/arm/allwinner/aw_mmc.c
	+++ b/sys/arm/allwinner/aw_mmc.c
	@@ -117,6 +117,7 @@

	static const struct aw_mmc_conf h616_mmc_conf = {
	.dma_xferlen = 0x10000,
	+ .dma_desc_shift = 2,
	.mask_data0 = true,
	.can_calibrate = true,
	.new_timing = true,
	@@ -737,6 +738,13 @@
	if (timeout == 0)
	return (ETIMEDOUT);

	+ /*
	+ * Assert hardware reset and have the card move to the pre-idle state.
	+ * This is needed on H616 to get the card into a functional state.
	+ */
	+ AW_MMC_WRITE_4(sc, AW_MMC_HWRST, AW_MMC_HWRST_ASSERT);
	+ AW_MMC_WRITE_4(sc, AW_MMC_HWRST, AW_MMC_HWRST_DEASSERT);
	+
	return (0);
	}