Thread (2 messages) 2 messages, 2 authors, 2008-01-30

Re: [PATCH] powerpc: configure USB clock for MPC8315E

From: Kumar Gala <hidden>
Date: 2008-01-30 16:38:27

On Jan 30, 2008, at 10:36 AM, Kim Phillips wrote:
quoted hunk ↗ jump to hunk
SCCR USB bits are in a different location on the mpc8315.

Signed-off-by: Jerry Huang <redacted>
Signed-off-by: Kim Phillips <redacted>
---
arch/powerpc/platforms/83xx/mpc83xx.h |    2 ++
arch/powerpc/platforms/83xx/usb.c     |   12 ++++++++----
2 files changed, 10 insertions(+), 4 deletions(-)
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..b3b650e 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,mpc8315erdb"))
Nope.  I don't want a board specific compat check in this code.
+		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")) {
- k
Keyboard shortcuts
hback out one level
jnext message in thread
kprevious message in thread
ldrill in
Escclose help / fold thread tree
?toggle this help