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| author | Kyösti Mälkki <kyosti.malkki@gmail.com> | 2017-07-30 13:23:32 +0300 |
|---|---|---|
| committer | Kyösti Mälkki <kyosti.malkki@gmail.com> | 2017-08-07 12:35:42 +0000 |
| commit | 6683e409d3688217e70f1f19deab152790b0f495 (patch) | |
| tree | 965070f130e9b367631c746ab219aa73f3569238 /src/drivers | |
| parent | d1a0c5770803e45dabecf6094fccb9895ea76d10 (diff) | |
usbdebug: Refactor early enable
Always sanity check for EHCI class device and move
PCI function power enablement up.
Change-Id: I1eebe813fbb420738af2d572178213fc660f392a
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/20826
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Diffstat (limited to 'src/drivers')
| -rw-r--r-- | src/drivers/usb/pci_ehci.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/src/drivers/usb/pci_ehci.c b/src/drivers/usb/pci_ehci.c index 8b72f57a5a..9099976ad5 100644 --- a/src/drivers/usb/pci_ehci.c +++ b/src/drivers/usb/pci_ehci.c @@ -33,13 +33,17 @@ static struct device_operations ehci_dbg_ops; int ehci_debug_hw_enable(unsigned int *base, unsigned int *dbg_offset) { pci_devfn_t dbg_dev = pci_ehci_dbg_dev(CONFIG_USBDEBUG_HCD_INDEX); - pci_ehci_dbg_enable(dbg_dev, CONFIG_EHCI_BAR); + #ifdef __SIMPLE_DEVICE__ pci_devfn_t dev = dbg_dev; #else device_t dev = dev_find_slot(PCI_DEV2SEGBUS(dbg_dev), PCI_DEV2DEVFN(dbg_dev)); #endif + u32 class = pci_read_config32(dev, PCI_CLASS_REVISION) >> 8; + if (class != PCI_EHCI_CLASSCODE) + return -1; + u8 pos = pci_find_capability(dev, PCI_CAP_ID_EHCI_DEBUG); if (!pos) return -1; |