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ata: pci: enable bus mastering

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The non DM code path already would enable pci bus mastering. Do the
same for the DM code path.

Fixes AHCI problems I am seeing on an Intel Apollolake device.

Signed-off-by: Christian Gmeiner <christian.gmeiner@gmail.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
[trini: Use ahci_dev not dev in the calls]
Signed-off-by: Tom Rini <trini@konsulko.com>
This commit is contained in:
Christian Gmeiner 2023-04-11 17:07:02 +02:00 committed by Tom Rini
parent 23fd87c489
commit cc6259832a
1 changed files with 6 additions and 1 deletions
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7
drivers/ata/ahci.c
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@ -1152,7 +1152,12 @@ int ahci_probe_scsi(struct udevice *ahci_dev, ulong base)
int ahci_probe_scsi_pci(struct udevice *ahci_dev)
{
ulong base;
u16 vendor, device;
u16 vendor, device, cmd;
/* Enable bus mastering */
dm_pci_read_config16(ahci_dev, PCI_COMMAND, &cmd);
cmd |= PCI_COMMAND_MASTER;
dm_pci_write_config16(ahci_dev, PCI_COMMAND, cmd);
base = (ulong)dm_pci_map_bar(ahci_dev, PCI_BASE_ADDRESS_5, 0, 0,
PCI_REGION_TYPE, PCI_REGION_MEM);