[ARM] Kirkwood: Add support for 88f6282

The 6282 SoC is compatible to 6280 and features faster CPU, DDR3, additional
PCIe interface, and LCD controller. More information can be found here:
http://www.marvell.com/products/processors/embedded/armada_300/armada_310.pdf

Signed-off-by: Saeed Bishara <saeed@marvell.com>
Signed-off-by: Nicolas Pitre <nico@fluxnic.net>

arch/arm/mach-kirkwood/common.c

@@ -402,7 +402,7 @@ void __init kirkwood_sdio_init(struct mvsdio_platform_data *mvsdio_data)
 	u32 dev, rev;
 
 	kirkwood_pcie_id(&dev, &rev);
-	if (rev == 0)  /* catch all Kirkwood Z0's */
+	if (rev == 0 && dev != MV88F6282_DEV_ID) /* catch all Kirkwood Z0's */
 		mvsdio_data->clock = 100000000;
 	else
 		mvsdio_data->clock = 200000000;
@@ -847,8 +847,10 @@ int __init kirkwood_find_tclk(void)
 	u32 dev, rev;
 
 	kirkwood_pcie_id(&dev, &rev);
-	if (dev == MV88F6281_DEV_ID && (rev == MV88F6281_REV_A0 ||
-					rev == MV88F6281_REV_A1))
+
+	if ((dev == MV88F6281_DEV_ID && (rev == MV88F6281_REV_A0 ||
+					rev == MV88F6281_REV_A1)) ||
+	    (dev == MV88F6282_DEV_ID))
 		return 200000000;
 
 	return 166666667;
@@ -902,6 +904,11 @@ static char * __init kirkwood_id(void)
 			return "MV88F6180-Rev-A1";
 		else
 			return "MV88F6180-Rev-Unsupported";
+	} else if (dev == MV88F6282_DEV_ID) {
+		if (rev == MV88F6282_REV_A0)
+			return "MV88F6282-Rev-A0";
+		else
+			return "MV88F6282-Rev-Unsupported";
 	} else {
 		return "Device-Unknown";
 	}

arch/arm/mach-kirkwood/include/mach/kirkwood.h

@@ -113,4 +113,6 @@
 #define MV88F6180_REV_A0	2
 #define MV88F6180_REV_A1	3
 
+#define MV88F6282_DEV_ID	0x6282
+#define MV88F6282_REV_A0	0
 #endif

arch/arm/mach-kirkwood/mpp.c

@@ -23,7 +23,8 @@ static unsigned int __init kirkwood_variant(void)
 
 	kirkwood_pcie_id(&dev, &rev);
 
-	if (dev == MV88F6281_DEV_ID && rev >= MV88F6281_REV_A0)
+	if ((dev == MV88F6281_DEV_ID && rev >= MV88F6281_REV_A0) ||
+	    (dev == MV88F6282_DEV_ID))
 		return MPP_F6281_MASK;
 	if (dev == MV88F6192_DEV_ID && rev >= MV88F6192_REV_A0)
 		return MPP_F6192_MASK;