arm: omap3: Update cpuinfo for DM3730, DM3725, AM3715, and AM3703

The check for OMAP3630/3730 only checks for 800MHz 3630/3730, but
anything else is lumped into 36XX/37XX with an assumed 1GHz speed.

Based on the DM3730 TRM bit 9 shows the MPU Frequency (800MHz/1GHZ).
This also adds the ability to distinguish between the DM3730, DM3725,
AM3715, and AM3703 and correctly display their maximum speed.

Signed-off-by: Adam Ford <aford173@gmail.com>
Tested-by: Ladislav Michl <ladis@linux-mips.org>

arch/arm/include/asm/arch-omap3/omap.h

@@ -230,6 +230,14 @@ struct gpio {
 #define AM3517			0x1c00
 
 #define OMAP3730		0x0c00
+#define OMAP3725		0x4c00
+#define AM3715			0x1c00
+#define AM3703			0x5c00
+
+#define OMAP3730_1GHZ		0x0e00
+#define OMAP3725_1GHZ		0x4e00
+#define AM3715_1GHZ		0x1e00
+#define AM3703_1GHZ		0x5e00
 
 /*
  * ROM code API related flags

arch/arm/mach-omap2/omap3/sys_info.c

@@ -295,16 +295,54 @@ int print_cpuinfo (void)
 		max_clk = "600 MHz";
 		break;
 	case CPU_OMAP36XX:
-		cpu_family_s = "OMAP";
 		switch (get_cpu_type()) {
+		case AM3703:
+			cpu_family_s = "AM";
+			cpu_s = "3703";
+			max_clk = "800 MHz";
+			break;
+		case AM3703_1GHZ:
+			cpu_family_s = "AM";
+			cpu_s = "3703";
+			max_clk = "1 GHz";
+			break;
+		case AM3715:
+			cpu_family_s = "AM";
+			cpu_s = "3715";
+			max_clk = "800 MHz";
+			break;
+		case AM3715_1GHZ:
+			cpu_family_s = "AM";
+			cpu_s = "3715";
+			max_clk = "1 GHz";
+			break;
+		case OMAP3725:
+			cpu_family_s = "OMAP";
+			cpu_s = "3625/3725";
+			max_clk = "800 MHz";
+			break;
+		case OMAP3725_1GHZ:
+			cpu_family_s = "OMAP";
+			cpu_s = "3625/3725";
+			max_clk = "1 GHz";
+			break;
 		case OMAP3730:
+			cpu_family_s = "OMAP";
 			cpu_s = "3630/3730";
+			max_clk = "800 MHz";
+			break;
+		case OMAP3730_1GHZ:
+			cpu_family_s = "OMAP";
+			cpu_s = "3630/3730";
+			max_clk = "1 GHz";
 			break;
 		default:
+			cpu_family_s = "OMAP/AM";
 			cpu_s = "36XX/37XX";
+			max_clk = "1 GHz";
 			break;
 		}
-		max_clk = "1 GHz";
+
 		break;
 	default:
 		cpu_family_s = "OMAP";