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| author | Duncan Laurie <dlaurie@chromium.org> | 2013-07-30 15:45:25 -0700 |
|---|---|---|
| committer | Ronald G. Minnich <rminnich@gmail.com> | 2013-12-18 02:24:13 +0100 |
| commit | 7d14e89c54e89901e7196e7a5da9583515576128 (patch) | |
| tree | 27a4b9964790b67706a94ea10a7772056a182899 | |
| parent | b1ae0303ce1ae3cb7f5b4f9ded32fac424be5bcb (diff) | |
| download | coreboot-7d14e89c54e89901e7196e7a5da9583515576128.tar.xz | |
lynxpoint: Don't write to non-existent EHCI
The LynxPoint-LP chipset only has one EHCI controller so we should
not attempt to write into the second one that only exists on LynxPoint-H.
Change-Id: I1eae060c7f0a5873c9684e5abfeea5cb5895ab62
Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-on: https://gerrit.chromium.org/gerrit/63799
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/4405
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
| -rw-r--r-- | src/southbridge/intel/lynxpoint/early_pch.c | 6 | ||||
| -rw-r--r-- | src/southbridge/intel/lynxpoint/early_usb.c | 5 |
2 files changed, 8 insertions, 3 deletions
diff --git a/src/southbridge/intel/lynxpoint/early_pch.c b/src/southbridge/intel/lynxpoint/early_pch.c index 38506c9438..9909bb6d44 100644 --- a/src/southbridge/intel/lynxpoint/early_pch.c +++ b/src/southbridge/intel/lynxpoint/early_pch.c @@ -42,6 +42,12 @@ const struct rcba_config_instruction pch_early_config[] = { RCBA_END_CONFIG, }; +int pch_is_lp(void) +{ + u8 id = pci_read_config8(PCH_LPC_DEV, PCI_DEVICE_ID + 1); + return id == PCH_TYPE_LPT_LP; +} + static void pch_enable_bars(void) { /* Setting up Southbridge. In the northbridge code. */ diff --git a/src/southbridge/intel/lynxpoint/early_usb.c b/src/southbridge/intel/lynxpoint/early_usb.c index 9a1a4cb35e..d328ef6818 100644 --- a/src/southbridge/intel/lynxpoint/early_usb.c +++ b/src/southbridge/intel/lynxpoint/early_usb.c @@ -54,7 +54,6 @@ static void enable_usb_bar_on_device(device_t dev, u32 bar) void enable_usb_bar(void) { enable_usb_bar_on_device(PCH_EHCI1_DEV, PCH_EHCI1_TEMP_BAR0); -#if !CONFIG_INTEL_LYNXPOINT_LP - enable_usb_bar_on_device(PCH_EHCI2_DEV, PCH_EHCI2_TEMP_BAR0); -#endif + if (!pch_is_lp()) + enable_usb_bar_on_device(PCH_EHCI2_DEV, PCH_EHCI2_TEMP_BAR0); } |