From 38534712cd4c4d8acdf760ee87ba219f82d738c9 Mon Sep 17 00:00:00 2001 From: Simon Glass Date: Thu, 4 May 2023 16:55:07 -0600 Subject: [PATCH] nvme: Enable PCI bus mastering U-Boot sets up devices ready for use, but coreboot does not. Enable this so that NVMe works OK from coreboot. Signed-off-by: Simon Glass Reviewed-by: Bin Meng --- drivers/nvme/nvme_pci.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/nvme/nvme_pci.c b/drivers/nvme/nvme_pci.c index 36bf9c5ffb..5bb43d299f 100644 --- a/drivers/nvme/nvme_pci.c +++ b/drivers/nvme/nvme_pci.c @@ -6,6 +6,7 @@ #include #include +#include #include #include "nvme.h" @@ -30,6 +31,10 @@ static int nvme_probe(struct udevice *udev) ndev->instance = trailing_strtol(udev->name); ndev->bar = dm_pci_map_bar(udev, PCI_BASE_ADDRESS_0, 0, 0, PCI_REGION_TYPE, PCI_REGION_MEM); + + /* Turn on bus-mastering */ + dm_pci_clrset_config16(udev, PCI_COMMAND, 0, PCI_COMMAND_MASTER); + return nvme_init(udev); } -- 2.39.5