+/*
+ * ----------------------------------------------------------------------------
+ * OMAP revision check
+ *
+ * Since we use the cpu_is_omapnnnn() macros, there's a chance that a board
+ * switches to an updated core. We want to print out the OMAP revision early.
+ *
+ * We use the system_serial registers for the revision information so we
+ * can see it in /proc/cpuinfo.
+ *
+ * If the OMAP detection gets more complicated, we may want to expand this
+ * to store the OMAP version and replace the current cpu_is_omapnnnn() macros.
+ *
+ * ----------------------------------------------------------------------------
+ */
+static void __init omap_check_revision(void)
+{
+ system_serial_high = omap_readl(OMAP_ID_BASE);
+ system_serial_low = OMAP_ID_REG;
+ system_rev = (OMAP_ID_REG >> ID_SHIFT) & ID_MASK;
+
+ printk("OMAP revision: %d.%d (0x%08x) id: 0x%08x detected as OMAP-",
+ (system_serial_high >> 20) & 0xf,
+ (system_serial_high >> 16) & 0xf,
+ system_serial_high, system_serial_low);
+
+ switch (system_rev) {
+ case OMAP_ID_730:
+ printk("730\n");
+ system_rev = 0x730;
+ break;
+ case OMAP_ID_1510:
+ printk("1510\n");
+ system_rev = 0x1510;
+ break;
+ case OMAP_ID_1610:
+ printk("1610\n");
+ system_rev = 0x1610;
+ break;
+ case OMAP_ID_1710:
+ printk("1710\n");
+ system_rev = 0x1710;
+ break;
+ case OMAP_ID_5912:
+ printk("5912/1611B\n");
+ system_rev = 0x5912;
+ break;
+ default:
+ printk("unknown, please add support!\n");
+ }
+}
+