From: Kim Phillips <kim.phillips@freescale.com>
To: linuxppc-dev <linuxppc-dev@ozlabs.org>,
Kumar Gala <galak@kernel.crashing.org>
Cc: Jerry Huang <Chang-Ming.Huang@freescale.com>
Subject: [PATCH v2] powerpc: configure USB clock for MPC8315E
Date: Wed, 30 Jan 2008 11:08:57 -0600 [thread overview]
Message-ID: <20080130110857.c66f98fb.kim.phillips@freescale.com> (raw)
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>
---
changed to match compatible on non-board specific "fsl,mpc8315-usb2-dr".
arch/powerpc/boot/dts/mpc8315erdb.dts | 2 +-
arch/powerpc/platforms/83xx/mpc83xx.h | 2 ++
arch/powerpc/platforms/83xx/usb.c | 12 ++++++++----
3 files changed, 11 insertions(+), 5 deletions(-)
diff --git a/arch/powerpc/boot/dts/mpc8315erdb.dts b/arch/powerpc/boot/dts/mpc8315erdb.dts
index b582032..59b1f05 100644
--- a/arch/powerpc/boot/dts/mpc8315erdb.dts
+++ b/arch/powerpc/boot/dts/mpc8315erdb.dts
@@ -133,7 +133,7 @@
};
usb@23000 {
- compatible = "fsl-usb2-dr";
+ compatible = "fsl-usb2-dr", "fsl,mpc8315-usb2-dr";
reg = <0x23000 0x1000>;
#address-cells = <1>;
#size-cells = <0>;
diff --git a/arch/powerpc/platforms/83xx/mpc83xx.h b/arch/powerpc/platforms/83xx/mpc83xx.h
index 88bb748..68065e6 100644
--- 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..14c83f1 100644
--- a/arch/powerpc/platforms/83xx/usb.c
+++ b/arch/powerpc/platforms/83xx/usb.c
@@ -124,10 +124,14 @@ 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);
+ if (of_find_compatible_node(NULL, NULL, "fsl,mpc8315-usb2-dr"))
+ 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")) {
--
1.5.2.2
next reply other threads:[~2008-01-30 17:09 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-01-30 17:08 Kim Phillips [this message]
2008-01-30 17:24 ` [PATCH v2] powerpc: configure USB clock for MPC8315E Kumar Gala
2008-01-30 17:27 ` Olof Johansson
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