From cb271f3ce969a0fc4ecf9fc4b5a28852509714ed Mon Sep 17 00:00:00 2001
From: Peter Chen <peter.chen@freescale.com>
Date: Wed, 11 Feb 2015 12:44:55 +0800
Subject: usb: chipidea: add chipidea revision information

Define ci_get_revision API to know the controller revision
information according to chipidea 1.1a, 2.0a and 2.5a spec.
Besides, add one entry at struct ci_hdrc to indicate revision
information, it can be used for adding different code for
revisions, eg kinds of errata.

Reviewed-by: Stefan Agner <stefan@agner.ch>
Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/chipidea/bits.h | 10 ++++++++++
 1 file changed, 10 insertions(+)

(limited to 'drivers/usb/chipidea/bits.h')

diff --git a/drivers/usb/chipidea/bits.h b/drivers/usb/chipidea/bits.h
index ca57e3dcd3d5..e69424d6e423 100644
--- a/drivers/usb/chipidea/bits.h
+++ b/drivers/usb/chipidea/bits.h
@@ -15,6 +15,16 @@
 
 #include <linux/usb/ehci_def.h>
 
+/*
+ * ID
+ * For 1.x revision, bit24 - bit31 are reserved
+ * For 2.x revision, bit25 - bit28 are 0x2
+ */
+#define TAG		      (0x1F << 16)
+#define REVISION	      (0xF << 21)
+#define VERSION		      (0xF << 25)
+#define CIVERSION	      (0x7 << 29)
+
 /* HCCPARAMS */
 #define HCCPARAMS_LEN         BIT(17)
 
-- 
cgit v1.2.3