4 files changed, 37 insertions, 3 deletions
diff --git a/arch/powerpc/platforms/52xx/lite5200.c b/arch/powerpc/platforms/52xx/lite5200.c
index 01ffa64d2aa7..448d862bcf3d 100644
--- a/arch/powerpc/platforms/52xx/lite5200.c
+++ b/arch/powerpc/platforms/52xx/lite5200.c
@@ -172,7 +172,7 @@ static void __init lite5200_setup_arch(void)
 	mpc52xx_setup_pci();
 }
 
-static const char *board[] __initdata = {
+static const char * const board[] __initconst = {
 	"fsl,lite5200",
 	"fsl,lite5200b",
 	NULL,
diff --git a/arch/powerpc/platforms/52xx/media5200.c b/arch/powerpc/platforms/52xx/media5200.c
index 17d91b7da315..070d315dd6cd 100644
--- a/arch/powerpc/platforms/52xx/media5200.c
+++ b/arch/powerpc/platforms/52xx/media5200.c
@@ -232,7 +232,7 @@ static void __init media5200_setup_arch(void)
 }
 
 /* list of the supported boards */
-static const char *board[] __initdata = {
+static const char * const board[] __initconst = {
 	"fsl,media5200",
 	NULL
 };
diff --git a/arch/powerpc/platforms/52xx/mpc5200_simple.c b/arch/powerpc/platforms/52xx/mpc5200_simple.c
index c0aa04068d69..9cf36020cf0d 100644
--- a/arch/powerpc/platforms/52xx/mpc5200_simple.c
+++ b/arch/powerpc/platforms/52xx/mpc5200_simple.c
@@ -52,6 +52,7 @@ static void __init mpc5200_simple_setup_arch(void)
 static const char *board[] __initdata = {
 	"anonymous,a4m072",
 	"anon,charon",
+	"ifm,o2d",
 	"intercontrol,digsy-mtc",
 	"manroland,mucmc52",
 	"manroland,uc101",
diff --git a/arch/powerpc/platforms/52xx/mpc52xx_lpbfifo.c b/arch/powerpc/platforms/52xx/mpc52xx_lpbfifo.c
index d61fb1c0c1a0..2351f9e0fb6f 100644
--- a/arch/powerpc/platforms/52xx/mpc52xx_lpbfifo.c
+++ b/arch/powerpc/platforms/52xx/mpc52xx_lpbfifo.c
@@ -170,7 +170,8 @@ static void mpc52xx_lpbfifo_kick(struct mpc52xx_lpbfifo_request *req)
 	out_be32(lpbfifo.regs + LPBFIFO_REG_CONTROL, bit_fields);
 
 	/* Kick it off */
-	out_8(lpbfifo.regs + LPBFIFO_REG_PACKET_SIZE, 0x01);
+	if (!lpbfifo.req->defer_xfer_start)
+		out_8(lpbfifo.regs + LPBFIFO_REG_PACKET_SIZE, 0x01);
 	if (dma)
 		bcom_enable(lpbfifo.bcom_cur_task);
 }
@@ -421,6 +422,38 @@ int mpc52xx_lpbfifo_submit(struct mpc52xx_lpbfifo_request *req)
 }
 EXPORT_SYMBOL(mpc52xx_lpbfifo_submit);
 
+int mpc52xx_lpbfifo_start_xfer(struct mpc52xx_lpbfifo_request *req)
+{
+	unsigned long flags;
+
+	if (!lpbfifo.regs)
+		return -ENODEV;
+
+	spin_lock_irqsave(&lpbfifo.lock, flags);
+
+	/*
+	 * If the req pointer is already set and a transfer was
+	 * started on submit, then this transfer is in progress
+	 */
+	if (lpbfifo.req && !lpbfifo.req->defer_xfer_start) {
+		spin_unlock_irqrestore(&lpbfifo.lock, flags);
+		return -EBUSY;
+	}
+
+	/*
+	 * If the req was previously submitted but not
+	 * started, start it now
+	 */
+	if (lpbfifo.req && lpbfifo.req == req &&
+	    lpbfifo.req->defer_xfer_start) {
+		out_8(lpbfifo.regs + LPBFIFO_REG_PACKET_SIZE, 0x01);
+	}
+
+	spin_unlock_irqrestore(&lpbfifo.lock, flags);
+	return 0;
+}
+EXPORT_SYMBOL(mpc52xx_lpbfifo_start_xfer);
+
 void mpc52xx_lpbfifo_abort(struct mpc52xx_lpbfifo_request *req)
 {
 	unsigned long flags;