Index: head/sys/dev/sdhci/sdhci_acpi.c
===================================================================
--- head/sys/dev/sdhci/sdhci_acpi.c
+++ head/sys/dev/sdhci/sdhci_acpi.c
@@ -79,6 +79,8 @@
 	    SDHCI_QUIRK_MMC_DDR52 |
 	    SDHCI_QUIRK_CAPS_BIT63_FOR_MMC_HS400 |
 	    SDHCI_QUIRK_PRESET_VALUE_BROKEN },
+	{ "AMDI0040",	0, "AMD eMMC 5.0 Controller",
+	    SDHCI_QUIRK_32BIT_DMA_SIZE },
 	{ NULL, 0, NULL, 0}
 };
 
@@ -87,6 +89,7 @@
 	"80860F16",
 	"80865ACA",
 	"80865ACC",
+	"AMDI0040",
 	NULL
 };