svn commit: r261216 - head/sys/dev/pccbb

[John Baldwin]

Author: jhb
Date: Mon Jan 27 19:49:52 2014
New Revision: 261216
URL: http://svnweb.freebsd.org/changeset/base/261216

Log:
  Explicitly enable I/O and memory decoding in the bridge's command register
  when activating an I/O or memory window on the CardBus bridge.
  
  Tested by:    Olivier Cochard-Labbe <oliv...@cochard.me>
  Reviewed by:  imp
  MFC after:    3 days

Modified:
  head/sys/dev/pccbb/pccbb.c

Modified: head/sys/dev/pccbb/pccbb.c
==============================================================================
--- head/sys/dev/pccbb/pccbb.c  Mon Jan 27 19:37:35 2014        (r261215)
+++ head/sys/dev/pccbb/pccbb.c  Mon Jan 27 19:49:52 2014        (r261216)
@@ -1038,6 +1038,13 @@ cbb_cardbus_power_disable_socket(device_
 /* CardBus Resource                                                    */
 /************************************************************************/
 
+static void
+cbb_activate_window(device_t brdev, int type)
+{
+
+       PCI_ENABLE_IO(device_get_parent(brdev), brdev, type);
+}
+
 static int
 cbb_cardbus_io_open(device_t brdev, int win, uint32_t start, uint32_t end)
 {
@@ -1055,6 +1062,7 @@ cbb_cardbus_io_open(device_t brdev, int 
 
        pci_write_config(brdev, basereg, start, 4);
        pci_write_config(brdev, limitreg, end, 4);
+       cbb_activate_window(brdev, SYS_RES_IOPORT);
        return (0);
 }
 
@@ -1075,6 +1083,7 @@ cbb_cardbus_mem_open(device_t brdev, int
 
        pci_write_config(brdev, basereg, start, 4);
        pci_write_config(brdev, limitreg, end, 4);
+       cbb_activate_window(brdev, SYS_RES_MEMORY);
        return (0);
 }
 
@@ -1342,7 +1351,12 @@ cbb_pcic_activate_resource(device_t brde
     struct resource *res)
 {
        struct cbb_softc *sc = device_get_softc(brdev);
-       return (exca_activate_resource(&sc->exca[0], child, type, rid, res));
+       int error;
+
+       error = exca_activate_resource(&sc->exca[0], child, type, rid, res);
+       if (error == 0)
+               cbb_activate_window(brdev, type);
+       return (error);
 }
 
 static int
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