diff options
| author | Mario Limonciello <mario.limonciello@amd.com> | 2023-03-29 21:57:58 +0200 |
|---|---|---|
| committer | Felix Fietkau <nbd@nbd.name> | 2023-04-17 16:08:49 +0200 |
| commit | 09d4d6da1b65d09414e7bce61459593f3c80ead1 (patch) | |
| tree | e06a39d23371f76db39b647d642ac94f36e6ad5a /drivers/net | |
| parent | wifi: mt76: mt7921: use driver flags rather than mac80211 flags to mcu (diff) | |
| download | linux-09d4d6da1b65d09414e7bce61459593f3c80ead1.tar.xz linux-09d4d6da1b65d09414e7bce61459593f3c80ead1.zip | |
wifi: mt76: mt7921e: Set memory space enable in PCI_COMMAND if unset
When the BIOS has been configured for Fast Boot, systems with mt7921e
have non-functional wifi. Turning on Fast boot caused both bus master
enable and memory space enable bits in PCI_COMMAND not to get configured.
The mt7921 driver already sets bus master enable, but explicitly check
and set memory access enable as well to fix this problem.
Tested-by: Anson Tsao <anson.tsao@amd.com>
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Acked-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Diffstat (limited to 'drivers/net')
| -rw-r--r-- | drivers/net/wireless/mediatek/mt76/mt7921/pci.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/pci.c b/drivers/net/wireless/mediatek/mt76/mt7921/pci.c index b520cd258170..974412b6f76a 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7921/pci.c +++ b/drivers/net/wireless/mediatek/mt76/mt7921/pci.c @@ -262,6 +262,7 @@ static int mt7921_pci_probe(struct pci_dev *pdev, struct mt76_dev *mdev; u8 features; int ret; + u16 cmd; ret = pcim_enable_device(pdev); if (ret) @@ -271,6 +272,11 @@ static int mt7921_pci_probe(struct pci_dev *pdev, if (ret) return ret; + pci_read_config_word(pdev, PCI_COMMAND, &cmd); + if (!(cmd & PCI_COMMAND_MEMORY)) { + cmd |= PCI_COMMAND_MEMORY; + pci_write_config_word(pdev, PCI_COMMAND, cmd); + } pci_set_master(pdev); ret = pci_alloc_irq_vectors(pdev, 1, 1, PCI_IRQ_ALL_TYPES); |