You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
43 lines
1.4 KiB
43 lines
1.4 KiB
From aeeb6ea6eb18c46f5776dd068989686686cda359 Mon Sep 17 00:00:00 2001
|
|
From: Huang Shijie <shijie8@gmail.com>
|
|
Date: Fri, 17 May 2013 11:17:28 +0800
|
|
Subject: [PATCH 092/203] mtd: add a helper to get the supported features for
|
|
ONFI nand
|
|
|
|
add a helper to get the supported features for ONFI nand.
|
|
Also add the neccessary macros.
|
|
|
|
Signed-off-by: Huang Shijie <b32955@freescale.com>
|
|
Reviewed-and-tested-by: Brian Norris <computersforpeace@gmail.com>
|
|
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
|
|
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
|
|
---
|
|
include/linux/mtd/nand.h | 10 ++++++++++
|
|
1 file changed, 10 insertions(+)
|
|
|
|
--- a/include/linux/mtd/nand.h
|
|
+++ b/include/linux/mtd/nand.h
|
|
@@ -202,6 +202,10 @@ typedef enum {
|
|
/* Keep gcc happy */
|
|
struct nand_chip;
|
|
|
|
+/* ONFI features */
|
|
+#define ONFI_FEATURE_16_BIT_BUS (1 << 0)
|
|
+#define ONFI_FEATURE_EXT_PARAM_PAGE (1 << 7)
|
|
+
|
|
/* ONFI timing mode, used in both asynchronous and synchronous mode */
|
|
#define ONFI_TIMING_MODE_0 (1 << 0)
|
|
#define ONFI_TIMING_MODE_1 (1 << 1)
|
|
@@ -754,6 +758,12 @@ struct platform_nand_chip *get_platform_
|
|
return chip->priv;
|
|
}
|
|
|
|
+/* return the supported features. */
|
|
+static inline int onfi_feature(struct nand_chip *chip)
|
|
+{
|
|
+ return chip->onfi_version ? le16_to_cpu(chip->onfi_params.features) : 0;
|
|
+}
|
|
+
|
|
/* return the supported asynchronous timing mode. */
|
|
static inline int onfi_get_async_timing_mode(struct nand_chip *chip)
|
|
{
|
|
|