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authorKyösti Mälkki <kyosti.malkki@gmail.com>2013-06-15 12:30:13 +0300
committerRonald G. Minnich <rminnich@gmail.com>2013-06-23 23:36:58 +0200
commit81d3d7d00173eafff0ef134bdf1ee5e632f3868a (patch)
treed7754384a76c329449de46d63586ad1717fffc4b /src
parentdbc6fcd021759280c71b0e246c0ede34f4879bac (diff)
lynxpoint: Fix early EHCI BAR programming
LynxPoint LP has only EHCI controller #1. Change EHCI #2 to different BAR from EHCI #1. Even if the ECHI controllers are not to be addressed, it is bad idea to set two different devices to claim the same PCI memory cycles. Change-Id: I95c59fb9d5f09afd152872e9bc0418dc67e4aeb2 Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: http://review.coreboot.org/3472 Tested-by: build bot (Jenkins) Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Reviewed-by: Aaron Durbin <adurbin@google.com>
Diffstat (limited to 'src')
-rw-r--r--src/southbridge/intel/lynxpoint/early_usb.c26
1 files changed, 11 insertions, 15 deletions
diff --git a/src/southbridge/intel/lynxpoint/early_usb.c b/src/southbridge/intel/lynxpoint/early_usb.c
index ebd5c2c50a..d71467e066 100644
--- a/src/southbridge/intel/lynxpoint/early_usb.c
+++ b/src/southbridge/intel/lynxpoint/early_usb.c
@@ -34,23 +34,19 @@
* The BAR will be re-assigned during device
* enumeration so these are only temporary.
*/
-void enable_usb_bar(void)
+static void enable_usb_bar_on_device(device_t dev, u32 bar)
{
- device_t usb0 = PCH_EHCI1_DEV;
- device_t usb1 = PCH_EHCI2_DEV;
u32 cmd;
-
- /* USB Controller 1 */
- pci_write_config32(usb0, PCI_BASE_ADDRESS_0,
- PCH_EHCI1_TEMP_BAR0);
- cmd = pci_read_config32(usb0, PCI_COMMAND);
+ pci_write_config32(dev, PCI_BASE_ADDRESS_0, bar);
+ cmd = pci_read_config32(dev, PCI_COMMAND);
cmd |= PCI_COMMAND_MASTER | PCI_COMMAND_MEMORY;
- pci_write_config32(usb0, PCI_COMMAND, cmd);
+ pci_write_config32(dev, PCI_COMMAND, cmd);
+}
- /* USB Controller 1 */
- pci_write_config32(usb1, PCI_BASE_ADDRESS_0,
- PCH_EHCI1_TEMP_BAR0);
- cmd = pci_read_config32(usb1, PCI_COMMAND);
- cmd |= PCI_COMMAND_MASTER | PCI_COMMAND_MEMORY;
- pci_write_config32(usb1, PCI_COMMAND, cmd);
+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
}