3af779eb17
This is a backport of the patches accepted to the Linux mainline related to mvebu SoC (Armada XP and Armada 370) between Linux v3.11, and Linux v3.12. This work mainly covers: * Ground work for sharing the pxa nand driver(drivers/mtd/nand/pxa3xx_nand.c) between the PXA family,and the Armada family. * Further updates to the mvebu MBus. * Work and ground work for enabling MSI on the Armada family. * some phy / mdio bus initialization related work. * Device tree binding documentation update. Signed-off-by: Seif Mazareeb <seif.mazareeb@gmail.com> CC: Luka Perkov <luka@openwrt.org> SVN-Revision: 39565
86 lines
2.8 KiB
Diff
86 lines
2.8 KiB
Diff
From 50a7db84f71e7c4779596fb5f8efb579a5d29f97 Mon Sep 17 00:00:00 2001
|
|
From: Huang Shijie <b32955@freescale.com>
|
|
Date: Fri, 17 May 2013 11:17:27 +0800
|
|
Subject: [PATCH 091/203] mtd: add data structures for Extended Parameter Page
|
|
|
|
Since the ONFI 2.1, the onfi spec adds the Extended Parameter Page
|
|
to store the ECC info.
|
|
|
|
The onfi spec tells us that if the nand chip's recommended ECC codeword
|
|
size is not 512 bytes, then the @ecc_bits is 0xff. The host _SHOULD_ then
|
|
read the Extended ECC information that is part of the extended parameter
|
|
page to retrieve the ECC requirements for this device.
|
|
|
|
This patch adds
|
|
[1] the neccessary fields for nand_onfi_params{},
|
|
[2] and adds the onfi_ext_ecc_info{} for Extended ECC information,
|
|
[3] adds onfi_ext_section{} for extended sections,
|
|
[4] and adds onfi_ext_param_page{} for the Extended Parameter Page.
|
|
|
|
Acked-by: Pekon Gupta <pekon@ti.com>
|
|
Signed-off-by: Huang Shijie <b32955@freescale.com>
|
|
Reviewed-and-tested-by: Brian Norris <computersforpeace@gmail.com>
|
|
[Brian: amended for checkpatch.pl]
|
|
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
|
|
|
|
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
|
|
---
|
|
include/linux/mtd/nand.h | 39 ++++++++++++++++++++++++++++++++++++++-
|
|
1 file changed, 38 insertions(+), 1 deletion(-)
|
|
|
|
--- a/include/linux/mtd/nand.h
|
|
+++ b/include/linux/mtd/nand.h
|
|
@@ -224,7 +224,10 @@ struct nand_onfi_params {
|
|
__le16 revision;
|
|
__le16 features;
|
|
__le16 opt_cmd;
|
|
- u8 reserved[22];
|
|
+ u8 reserved0[2];
|
|
+ __le16 ext_param_page_length; /* since ONFI 2.1 */
|
|
+ u8 num_of_param_pages; /* since ONFI 2.1 */
|
|
+ u8 reserved1[17];
|
|
|
|
/* manufacturer information block */
|
|
char manufacturer[12];
|
|
@@ -281,6 +284,40 @@ struct nand_onfi_params {
|
|
|
|
#define ONFI_CRC_BASE 0x4F4E
|
|
|
|
+/* Extended ECC information Block Definition (since ONFI 2.1) */
|
|
+struct onfi_ext_ecc_info {
|
|
+ u8 ecc_bits;
|
|
+ u8 codeword_size;
|
|
+ __le16 bb_per_lun;
|
|
+ __le16 block_endurance;
|
|
+ u8 reserved[2];
|
|
+} __packed;
|
|
+
|
|
+#define ONFI_SECTION_TYPE_0 0 /* Unused section. */
|
|
+#define ONFI_SECTION_TYPE_1 1 /* for additional sections. */
|
|
+#define ONFI_SECTION_TYPE_2 2 /* for ECC information. */
|
|
+struct onfi_ext_section {
|
|
+ u8 type;
|
|
+ u8 length;
|
|
+} __packed;
|
|
+
|
|
+#define ONFI_EXT_SECTION_MAX 8
|
|
+
|
|
+/* Extended Parameter Page Definition (since ONFI 2.1) */
|
|
+struct onfi_ext_param_page {
|
|
+ __le16 crc;
|
|
+ u8 sig[4]; /* 'E' 'P' 'P' 'S' */
|
|
+ u8 reserved0[10];
|
|
+ struct onfi_ext_section sections[ONFI_EXT_SECTION_MAX];
|
|
+
|
|
+ /*
|
|
+ * The actual size of the Extended Parameter Page is in
|
|
+ * @ext_param_page_length of nand_onfi_params{}.
|
|
+ * The following are the variable length sections.
|
|
+ * So we do not add any fields below. Please see the ONFI spec.
|
|
+ */
|
|
+} __packed;
|
|
+
|
|
/**
|
|
* struct nand_hw_control - Control structure for hardware controller (e.g ECC generator) shared among independent devices
|
|
* @lock: protection lock
|