[POWERPC] 83xx: configure USB clock for MPC8315E

SCCR USB bits are in a different location on the mpc8315.

Signed-off-by: Jerry Huang <Chang-Ming.Huang@freescale.com>
Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>

diff --git a/arch/powerpc/boot/dts/mpc8315erdb.dts b/arch/powerpc/boot/dts/mpc8315erdb.dts
index b582032..d7a1ece 100644 (file)
--- a/arch/powerpc/boot/dts/mpc8315erdb.dts
+++ b/arch/powerpc/boot/dts/mpc8315erdb.dts
@@ -96,7 +96,7 @@
                #address-cells = <1>;
                #size-cells = <1>;
                device_type = "soc";
-               compatible = "simple-bus";
+               compatible = "fsl,mpc8315-immr", "simple-bus";
                ranges = <0 0xe0000000 0x00100000>;
                reg = <0xe0000000 0x00000200>;
                bus-frequency = <0>;

diff --git a/arch/powerpc/platforms/83xx/mpc83xx.h b/arch/powerpc/platforms/83xx/mpc83xx.h
index 88bb748..68065e6 100644 (file)
--- a/arch/powerpc/platforms/83xx/mpc83xx.h
+++ b/arch/powerpc/platforms/83xx/mpc83xx.h
@@ -14,6 +14,8 @@
 #define MPC83XX_SCCR_USB_DRCM_11   0x00300000
 #define MPC83XX_SCCR_USB_DRCM_01   0x00100000
 #define MPC83XX_SCCR_USB_DRCM_10   0x00200000
+#define MPC8315_SCCR_USB_MASK      0x00c00000
+#define MPC8315_SCCR_USB_DRCM_11   0x00c00000
 #define MPC837X_SCCR_USB_DRCM_11   0x00c00000
 
 /* system i/o configuration register low */

diff --git a/arch/powerpc/platforms/83xx/usb.c b/arch/powerpc/platforms/83xx/usb.c
index 681230a..471fdd8 100644 (file)
--- a/arch/powerpc/platforms/83xx/usb.c
+++ b/arch/powerpc/platforms/83xx/usb.c
@@ -104,6 +104,7 @@ int mpc831x_usb_cfg(void)
        u32 temp;
        void __iomem *immap, *usb_regs;
        struct device_node *np = NULL;
+       struct device_node *immr_node = NULL;
        const void *prop;
        struct resource res;
        int ret = 0;
@@ -124,10 +125,15 @@ int mpc831x_usb_cfg(void)
        }
 
        /* Configure clock */
-       temp = in_be32(immap + MPC83XX_SCCR_OFFS);
-       temp &= ~MPC83XX_SCCR_USB_MASK;
-       temp |= MPC83XX_SCCR_USB_DRCM_11;  /* 1:3 */
-       out_be32(immap + MPC83XX_SCCR_OFFS, temp);
+       immr_node = of_get_parent(np);
+       if (immr_node && of_device_is_compatible(immr_node, "fsl,mpc8315-immr"))
+               clrsetbits_be32(immap + MPC83XX_SCCR_OFFS,
+                               MPC8315_SCCR_USB_MASK,
+                               MPC8315_SCCR_USB_DRCM_11);
+       else
+               clrsetbits_be32(immap + MPC83XX_SCCR_OFFS,
+                               MPC83XX_SCCR_USB_MASK,
+                               MPC83XX_SCCR_USB_DRCM_11);
 
        /* Configure pin mux for ULPI.  There is no pin mux for UTMI */
        if (prop && !strcmp(prop, "ulpi")) {
@@ -144,6 +150,9 @@ int mpc831x_usb_cfg(void)
 
        iounmap(immap);
 
+       if (immr_node)
+               of_node_put(immr_node);
+
        /* Map USB SOC space */
        ret = of_address_to_resource(np, 0, &res);
        if (ret) {