49 lines
1.4 KiB
Diff
49 lines
1.4 KiB
Diff
diff --git a/arch/arm/mach-omap2/id.c b/arch/arm/mach-omap2/id.c
|
|
index 9a879f9..9cefef4 100644
|
|
--- a/arch/arm/mach-omap2/id.c
|
|
+++ b/arch/arm/mach-omap2/id.c
|
|
@@ -85,6 +85,9 @@ EXPORT_SYMBOL(omap_type);
|
|
|
|
#define read_tap_reg(reg) __raw_readl(tap_base + (reg))
|
|
|
|
+static ssize_t die_id_show(struct kobject *, struct kobj_attribute *, char *);
|
|
+static struct kobj_attribute die_id_attr = __ATTR(die_id, 0444, die_id_show, NULL);
|
|
+
|
|
struct omap_id {
|
|
u16 hawkeye; /* Silicon type (Hawkeye id) */
|
|
u8 dev; /* Device type from production_id reg */
|
|
@@ -104,6 +107,17 @@ static struct omap_id omap_ids[] __initdata = {
|
|
static void __iomem *tap_base;
|
|
static u16 tap_prod_id;
|
|
|
|
+static ssize_t die_id_show(struct kobject *kobj, struct kobj_attribute *attr,
|
|
+ char *buf)
|
|
+{
|
|
+ return sprintf(buf, "Die ID: %08x%08x%08x%08x\n",
|
|
+ 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 omap_get_die_id(struct omap_die_id *odi)
|
|
{
|
|
odi->id_0 = read_tap_reg(OMAP_TAP_DIE_ID_0);
|
|
@@ -457,3 +471,15 @@ void __init omap2_set_globals_tap(struct omap_globals *omap2_globals)
|
|
else
|
|
tap_prod_id = 0x0208;
|
|
}
|
|
+
|
|
+int __init export_omap_die_id(void)
|
|
+{
|
|
+ int error;
|
|
+
|
|
+ error = sysfs_create_file(power_kobj, &die_id_attr.attr);
|
|
+ if (error)
|
|
+ printk(KERN_ERR "sysfs_create_file failed: %d\n", error);
|
|
+ return error;
|
|
+}
|
|
+
|
|
+late_initcall(export_omap_die_id);
|