broadcom-wl: hack to work around a bug in the PCIe controller

Thank you nlh

This closes #12930.

SVN-Revision: 35767

diff --git a/package/broadcom-wl/patches/913-avoid-dbe-on-ifs_ctl-readw-hack.patch b/package/broadcom-wl/patches/913-avoid-dbe-on-ifs_ctl-readw-hack.patch
new file mode 100644 (file)
index 0000000..412bce9
--- /dev/null
+++ b/package/broadcom-wl/patches/913-avoid-dbe-on-ifs_ctl-readw-hack.patch
@@ -0,0 +1,12 @@
+--- a/driver/linux_osl.c
++++ b/driver/linux_osl.c
+@@ -723,6 +723,9 @@ osl_readl(volatile uint32 *r)
+ uint16
+ osl_readw(volatile uint16 *r)
+ {
++      uint32 addr = (uintptr)r & 0xffff3fff;
++      if (addr == 0xa8000688) /* ifs_ctl */
++              readl(r);
+       return (readw(r));
+ }
+