@@ -70,6 +70,10 @@ EXPORT_SYMBOL(omap_type);
/*----------------------------------------------------------------------------*/
#define OMAP_TAP_IDCODE 0x0204
+#define OMAP_TAP_PROD_ID_0 0x0208
+#define OMAP_TAP_PROD_ID_1 0x020c
+#define OMAP_TAP_PROD_ID_2 0x0210
+#define OMAP_TAP_PROD_ID_3 0x0214
#define OMAP_TAP_DIE_ID_0 0x0218
#define OMAP_TAP_DIE_ID_1 0x021C
#define OMAP_TAP_DIE_ID_2 0x0220
@@ -77,6 +81,10 @@ EXPORT_SYMBOL(omap_type);
#define read_tap_reg(reg) __raw_readl(tap_base + (reg))
+static ssize_t idcode_show(struct kobject *, struct kobj_attribute *, char *);
+static struct kobj_attribute idcode_attr = __ATTR(idcode, 0444, idcode_show,
+ NULL);
+
struct omap_id {
u16 hawkeye; /* Silicon type (Hawkeye id) */
u8 dev; /* Device type from production_id reg */
@@ -96,6 +104,23 @@ static struct omap_id omap_ids[] __initdata = {
static void __iomem *tap_base;
static u16 tap_prod_id;
+static ssize_t idcode_show(struct kobject *kobj, struct kobj_attribute *attr,
+ char *buf)
+{
+ return sprintf(buf, "IDCODE: %08x\nProduction ID: %08x %08x %08x %08x\n"
+ "Die ID: %08x %08x %08x %08x\n",
+ read_tap_reg(OMAP_TAP_IDCODE),
+ read_tap_reg(OMAP_TAP_PROD_ID_0),
+ read_tap_reg(OMAP_TAP_PROD_ID_1),
+ read_tap_reg(OMAP_TAP_PROD_ID_2),
+ read_tap_reg(OMAP_TAP_PROD_ID_3),
+ read_tap_reg(OMAP_TAP_DIE_ID_0),
+ read_tap_reg(OMAP_TAP_DIE_ID_1),
+ read_tap_reg(OMAP_TAP_DIE_ID_2),
+ read_tap_reg(OMAP_TAP_DIE_ID_3));
+
+}
+
void __init omap24xx_check_revision(void)
{
int i, j;
@@ -259,3 +284,14 @@ void __init omap2_set_globals_tap(struct omap_globals *omap2_globals)
else
tap_prod_id = 0x0208;
}
+
+void __init export_omapid(void)
+{
+ int error;
+
+ error = sysfs_create_file(power_kobj, &idcode_attr.attr);
+ if (error)
+ printk(KERN_ERR "sysfs_create_file failed: %d\n", error);
+}
+
+late_initcall(export_omapid);