powerpc/85xx: Add QE USB support for MPC8569E-MDS boards

- Add gpio-controller node for BCSR17, it is used to control USB
  speed and VBUS;
- Add timer node for QE GTM, needed for USB host;
- Add usb node itself;
- Add some probing code for BCSR GPIOs.

NOTE: QE USB doesn't work on prototype boards, but should work on
      pilot boards if specs and schematics are correct, though we
      don't have the pilot boards to actually test it.

Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>

1 files changed, 4 insertions, 0 deletions

diff --git a/arch/powerpc/platforms/85xx/mpc85xx_mds.c b/arch/powerpc/platforms/85xx/mpc85xx_mds.c
index bfb32834ab0c..20a61d0af33b 100644
--- a/arch/powerpc/platforms/85xx/mpc85xx_mds.c
+++ b/arch/powerpc/platforms/85xx/mpc85xx_mds.c
@@ -47,6 +47,7 @@
 #include <asm/udbg.h>
 #include <sysdev/fsl_soc.h>
 #include <sysdev/fsl_pci.h>
+#include <sysdev/simple_gpio.h>
 #include <asm/qe.h>
 #include <asm/qe_ic.h>
 #include <asm/mpic.h>
@@ -304,6 +305,9 @@ static struct of_device_id mpc85xx_ids[] = {
 
 static int __init mpc85xx_publish_devices(void)
 {
+        if (machine_is(mpc8569_mds))
+                simple_gpiochip_init("fsl,mpc8569mds-bcsr-gpio");
+
         /* Publish the QE devices */
         of_platform_bus_probe(NULL, mpc85xx_ids, NULL);