diff options
| author | Nico Huber <nico.huber@secunet.com> | 2017-08-30 13:38:50 +0200 |
|---|---|---|
| committer | Martin Roth <martinroth@google.com> | 2018-04-26 21:32:48 +0000 |
| commit | 570b183f7ef72dbc5d4575719cdd582c88c37d8b (patch) | |
| tree | e1735c7c1eae012ee881adb4e457a5487e9313f7 | |
| parent | e37387c8b51facd54551e29dad3f2d34468ba004 (diff) | |
device: Add flag to disable PCIe ASPM
For broken devices that spuriously advertise ASPM, make it possible to
decide ASPM activation in the device driver.
Change-Id: I491aa32a3ec954be87a474478609f0f3971d0fdf
Signed-off-by: Nico Huber <nico.huber@secunet.com>
Reviewed-on: https://review.coreboot.org/25617
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
| -rw-r--r-- | src/device/pciexp_device.c | 3 | ||||
| -rw-r--r-- | src/include/device/device.h | 1 |
2 files changed, 4 insertions, 0 deletions
diff --git a/src/device/pciexp_device.c b/src/device/pciexp_device.c index b15d9c2a2b..502494dad4 100644 --- a/src/device/pciexp_device.c +++ b/src/device/pciexp_device.c @@ -377,6 +377,9 @@ static void pciexp_enable_aspm(device_t root, unsigned root_cap, u16 lnkctl; u32 devcap; + if (endp->disable_pcie_aspm) + return; + /* Get endpoint device capabilities for acceptable limits */ devcap = pci_read_config32(endp, endp_cap + PCI_EXP_DEVCAP); diff --git a/src/include/device/device.h b/src/include/device/device.h index 02a933ecb8..acead58f8a 100644 --- a/src/include/device/device.h +++ b/src/include/device/device.h @@ -130,6 +130,7 @@ struct device { unsigned int enabled : 1; /* set if we should enable the device */ unsigned int initialized : 1; /* 1 if we have initialized the device */ unsigned int on_mainboard : 1; + unsigned int disable_pcie_aspm : 1; struct pci_irq_info pci_irq_info[4]; u8 command; |