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authorLinus Torvalds <torvalds@linux-foundation.org>2012-03-30 17:31:56 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2012-03-30 17:31:56 -0700
commit623ff7739e7c00fa3d55dbfd42a492a68298fd7a (patch)
tree0b7461753a1b13b27ea2958a7d48c6efb47bba54 /drivers/mtd/devices/docg3.h
parentc39e8ede284f469971589f2e04af78216e1a771d (diff)
parent7b0e67f604e1829e5292e1ad7743eb18dc42ea7c (diff)
Merge tag 'for-linus-3.4' of git://git.infradead.org/mtd-2.6
Pull MTD changes from David Woodhouse: - Artem's cleanup of the MTD API continues apace. - Fixes and improvements for ST FSMC and SuperH FLCTL NAND, amongst others. - More work on DiskOnChip G3, new driver for DiskOnChip G4. - Clean up debug/warning printks in JFFS2 to use pr_<level>. Fix up various trivial conflicts, largely due to changes in calling conventions for things like dmaengine_prep_slave_sg() (new inline wrapper to hide new parameter, clashing with rewrite of previously last parameter that used to be an 'append' flag, and is now a bitmap of 'unsigned long flags'). (Also some header file fallout - like so many merges this merge window - and silly conflicts with sparse fixes) * tag 'for-linus-3.4' of git://git.infradead.org/mtd-2.6: (120 commits) mtd: docg3 add protection against concurrency mtd: docg3 refactor cascade floors structure mtd: docg3 increase write/erase timeout mtd: docg3 fix inbound calculations mtd: nand: gpmi: fix function annotations mtd: phram: fix section mismatch for phram_setup mtd: unify initialization of erase_info->fail_addr mtd: support ONFI multi lun NAND mtd: sm_ftl: fix typo in major number. mtd: add device-tree support to spear_smi mtd: spear_smi: Remove default partition information from driver mtd: Add device-tree support to fsmc_nand mtd: fix section mismatch for doc_probe_device mtd: nand/fsmc: Remove sparse warnings and errors mtd: nand/fsmc: Add DMA support mtd: nand/fsmc: Access the NAND device word by word whenever possible mtd: nand/fsmc: Use dev_err to report error scenario mtd: nand/fsmc: Use devm routines mtd: nand/fsmc: Modify fsmc driver to accept nand timing parameters via platform mtd: fsmc_nand: add pm callbacks to support hibernation ...
Diffstat (limited to 'drivers/mtd/devices/docg3.h')
-rw-r--r--drivers/mtd/devices/docg3.h20
1 files changed, 18 insertions, 2 deletions
diff --git a/drivers/mtd/devices/docg3.h b/drivers/mtd/devices/docg3.h
index db0da436b49..19fb93f96a3 100644
--- a/drivers/mtd/devices/docg3.h
+++ b/drivers/mtd/devices/docg3.h
@@ -22,6 +22,8 @@
#ifndef _MTD_DOCG3_H
#define _MTD_DOCG3_H
+#include <linux/mtd/mtd.h>
+
/*
* Flash memory areas :
* - 0x0000 .. 0x07ff : IPL
@@ -267,9 +269,23 @@
#define DOC_LAYOUT_DPS_KEY_LENGTH 8
/**
+ * struct docg3_cascade - Cascade of 1 to 4 docg3 chips
+ * @floors: floors (ie. one physical docg3 chip is one floor)
+ * @base: IO space to access all chips in the cascade
+ * @bch: the BCH correcting control structure
+ * @lock: lock to protect docg3 IO space from concurrent accesses
+ */
+struct docg3_cascade {
+ struct mtd_info *floors[DOC_MAX_NBFLOORS];
+ void __iomem *base;
+ struct bch_control *bch;
+ struct mutex lock;
+};
+
+/**
* struct docg3 - DiskOnChip driver private data
* @dev: the device currently under control
- * @base: mapped IO space
+ * @cascade: the cascade this device belongs to
* @device_id: number of the cascaded DoCG3 device (0, 1, 2 or 3)
* @if_cfg: if true, reads are on 16bits, else reads are on 8bits
@@ -287,7 +303,7 @@
*/
struct docg3 {
struct device *dev;
- void __iomem *base;
+ struct docg3_cascade *cascade;
unsigned int device_id:4;
unsigned int if_cfg:1;
unsigned int reliable:2;