microblaze: Add architectural support for USB EHCI host controllers

Add architectural support for USB EHCI host controllers. It has been tested
using the USB EHCI host controller from Xilinx Inc., using both High Speed
devices and Full Speed devices.

Signed-off-by: Julie Zhu <julie.zhu@xilinx.com>
Signed-off-by: Michal Simek <monstr@monstr.eu>

2 files changed, 4 insertions, 0 deletions

diff --git a/arch/microblaze/Kconfig b/arch/microblaze/Kconfig
index 2db722d80d4d..bbd8327f1890 100644
--- a/arch/microblaze/Kconfig
+++ b/arch/microblaze/Kconfig
@@ -6,6 +6,7 @@ mainmenu "Linux/Microblaze Kernel Configuration"
 config MICROBLAZE
         def_bool y
         select HAVE_LMB
+        select USB_ARCH_HAS_EHCI
         select ARCH_WANT_OPTIONAL_GPIOLIB
 
 config SWAP
diff --git a/arch/microblaze/include/asm/io.h b/arch/microblaze/include/asm/io.h
index 7c3ec13b44d8..fc9997b73c09 100644
--- a/arch/microblaze/include/asm/io.h
+++ b/arch/microblaze/include/asm/io.h
@@ -210,6 +210,9 @@ static inline void __iomem *__ioremap(phys_addr_t address, unsigned long size,
 #define in_be32(a) __raw_readl((const void __iomem __force *)(a))
 #define in_be16(a) __raw_readw(a)
 
+#define writel_be(v, a) out_be32((__force unsigned *)a, v)
+#define readl_be(a)     in_be32((__force unsigned *)a)
+
 /*
  * Little endian
  */