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nvme: Enable PCI bus mastering

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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 <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
This commit is contained in:
Simon Glass 2023-05-04 16:55:07 -06:00 committed by Bin Meng
parent 2f5210b703
commit 38534712cd
1 changed files with 5 additions and 0 deletions
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5
drivers/nvme/nvme_pci.c
View file

@ -6,6 +6,7 @@
#include <common.h>
#include <dm.h>
#include <init.h>
#include <pci.h>
#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);
}