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>

2 files changed, 49 insertions, 0 deletions

diff --git a/arch/powerpc/boot/dts/mpc8569mds.dts b/arch/powerpc/boot/dts/mpc8569mds.dts
index 9e4ce99e1613..06332d61830a 100644
--- a/arch/powerpc/boot/dts/mpc8569mds.dts
+++ b/arch/powerpc/boot/dts/mpc8569mds.dts
@@ -99,8 +99,18 @@
                 };
 
                 bcsr@1,0 {
+                        #address-cells = <1>;
+                        #size-cells = <1>;
                         compatible = "fsl,mpc8569mds-bcsr";
                         reg = <1 0 0x8000>;
+                        ranges = <0 1 0 0x8000>;
+
+                        bcsr17: gpio-controller@11 {
+                                #gpio-cells = <2>;
+                                compatible = "fsl,mpc8569mds-bcsr-gpio";
+                                reg = <0x11 0x1>;
+                                gpio-controller;
+                        };
                 };
 
                 nand@3,0 {
@@ -315,6 +325,14 @@
                                 gpio-controller;
                         };
 
+                        qe_pio_f: gpio-controller@a0 {
+                                #gpio-cells = <2>;
+                                compatible = "fsl,mpc8569-qe-pario-bank",
+                                             "fsl,mpc8323-qe-pario-bank";
+                                reg = <0xa0 0x18>;
+                                gpio-controller;
+                        };
+
                         pio1: ucc_pin@01 {
                                 pio-map = <
                         /* port  pin  dir  open_drain  assignment  has_irq */
@@ -419,6 +437,16 @@
                         interrupt-parent = <&mpic>;
                 };
 
+                timer@440 {
+                        compatible = "fsl,mpc8569-qe-gtm",
+                                     "fsl,qe-gtm", "fsl,gtm";
+                        reg = <0x440 0x40>;
+                        interrupts = <12 13 14 15>;
+                        interrupt-parent = <&qeic>;
+                        /* Filled in by U-Boot */
+                        clock-frequency = <0>;
+                };
+
                 spi@4c0 {
                         #address-cells = <1>;
                         #size-cells = <0>;
@@ -446,6 +474,23 @@
                         mode = "cpu";
                 };
 
+                usb@6c0 {
+                        compatible = "fsl,mpc8569-qe-usb",
+                                     "fsl,mpc8323-qe-usb";
+                        reg = <0x6c0 0x40 0x8b00 0x100>;
+                        interrupts = <11>;
+                        interrupt-parent = <&qeic>;
+                        fsl,fullspeed-clock = "clk5";
+                        fsl,lowspeed-clock = "brg10";
+                        gpios = <&qe_pio_f 3 0   /* USBOE */
+                                 &qe_pio_f 4 0   /* USBTP */
+                                 &qe_pio_f 5 0   /* USBTN */
+                                 &qe_pio_f 6 0   /* USBRP */
+                                 &qe_pio_f 8 0   /* USBRN */
+                                 &bcsr17   6 0   /* SPEED */
+                                 &bcsr17   5 1>; /* POWER */
+                };
+
                 enet0: ucc@2000 {
                         device_type = "network";
                         compatible = "ucc_geth";
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);