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Merge tag 'for-linus-20121219' of git://git.infradead.org/linux-mtd

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Pull MTD updates from David Woodhouse:
 - Various cleanups especially in NAND tests
 - Add support for NAND flash on BCMA bus
 - DT support for sh_flctl and denali NAND drivers
 - Kill obsolete/superceded drivers (fortunet, nomadik_nand)
 - Fix JFFS2 locking bug in ENOMEM failure path
 - New SPI flash chips, as usual
 - Support writing in 'reliable mode' for DiskOnChip G4
 - Debugfs support in nandsim

* tag 'for-linus-20121219' of git://git.infradead.org/linux-mtd: (96 commits)
  mtd: nand: typo in nand_id_has_period() comments
  mtd: nand/gpio: use io{read,write}*_rep accessors
  mtd: block2mtd: throttle writes by calling balance_dirty_pages_ratelimited.
  mtd: nand: gpmi: reset BCH earlier, too, to avoid NAND startup problems
  mtd: nand/docg4: fix and improve read of factory bbt
  mtd: nand/docg4: reserve bb marker area in ecclayout
  mtd: nand/docg4: add support for writing in reliable mode
  mtd: mxc_nand: reorder part_probes to let cmdline override other sources
  mtd: mxc_nand: fix unbalanced clk_disable() in error path
  mtd: nandsim: Introduce debugfs infrastructure
  mtd: physmap_of: error checking to prevent a NULL pointer dereference
  mtg: docg3: potential divide by zero in doc_write_oob()
  mtd: bcm47xxnflash: writing support
  mtd: tests/read: initialize buffer for whole next page
  mtd: at91: atmel_nand: return bit flips for the PMECC read_page()
  mtd: fix recovery after failed write-buffer operation in cfi_cmdset_0002.c
  mtd: nand: onfi need to be probed in 8 bits mode
  mtd: nand: add NAND_BUSWIDTH_AUTO to autodetect bus width
  mtd: nand: print flash size during detection
  mted: nand_wait_ready timeout fix
  ...
This commit is contained in:
Linus Torvalds
2012-12-19 12:47:41 -08:00
parent 3935e89505 d4d4f1bf6a
commit ca2a88f56a
121 changed files with 2544 additions and 1833 deletions
Download Patch File Download Diff File Expand all files Collapse all files

1
include/linux/bcma/bcma.h
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@@ -350,6 +350,7 @@ extern void bcma_core_set_clockmode(struct bcma_device *core,
enum bcma_clkmode clkmode);
extern void bcma_core_pll_ctl(struct bcma_device *core, u32 req, u32 status,
bool on);
extern u32 bcma_chipco_pll_read(struct bcma_drv_cc *cc, u32 offset);
#define BCMA_DMA_TRANSLATION_MASK 0xC0000000
#define BCMA_DMA_TRANSLATION_NONE 0x00000000
#define BCMA_DMA_TRANSLATION_DMA32_CMT 0x40000000 /* Client Mode Translation for 32-bit DMA */

4
include/linux/mtd/blktrans.h
View File

@@ -23,6 +23,7 @@
#include <linux/mutex.h>
#include <linux/kref.h>
#include <linux/sysfs.h>
#include <linux/workqueue.h>
struct hd_geometry;
struct mtd_info;
@@ -43,7 +44,8 @@ struct mtd_blktrans_dev {
struct kref ref;
struct gendisk *disk;
struct attribute_group *disk_attributes;
struct task_struct *thread;
struct workqueue_struct *wq;
struct work_struct work;
struct request_queue *rq;
spinlock_t queue_lock;
void *priv;

22
include/linux/mtd/doc2000.h
View File

@@ -92,12 +92,26 @@
* Others use readb/writeb
*/
#if defined(__arm__)
#define ReadDOC_(adr, reg) ((unsigned char)(*(volatile __u32 *)(((unsigned long)adr)+((reg)<<2))))
#define WriteDOC_(d, adr, reg) do{ *(volatile __u32 *)(((unsigned long)adr)+((reg)<<2)) = (__u32)d; wmb();} while(0)
static inline u8 ReadDOC_(u32 __iomem *addr, unsigned long reg)
{
return __raw_readl(addr + reg);
}
static inline void WriteDOC_(u8 data, u32 __iomem *addr, unsigned long reg)
{
__raw_writel(data, addr + reg);
wmb();
}
#define DOC_IOREMAP_LEN 0x8000
#elif defined(__ppc__)
#define ReadDOC_(adr, reg) ((unsigned char)(*(volatile __u16 *)(((unsigned long)adr)+((reg)<<1))))
#define WriteDOC_(d, adr, reg) do{ *(volatile __u16 *)(((unsigned long)adr)+((reg)<<1)) = (__u16)d; wmb();} while(0)
static inline u8 ReadDOC_(u16 __iomem *addr, unsigned long reg)
{
return __raw_readw(addr + reg);
}
static inline void WriteDOC_(u8 data, u16 __iomem *addr, unsigned long reg)
{
__raw_writew(data, addr + reg);
wmb();
}
#define DOC_IOREMAP_LEN 0x4000
#else
#define ReadDOC_(adr, reg) readb((void __iomem *)(adr) + (reg))

3
include/linux/mtd/fsmc.h
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@@ -155,9 +155,6 @@ struct fsmc_nand_platform_data {
unsigned int width;
unsigned int bank;
/* CLE, ALE offsets */
unsigned int cle_off;
unsigned int ale_off;
enum access_mode mode;
void (*select_bank)(uint32_t bank, uint32_t busw);

68
include/linux/mtd/gpmi-nand.h
View File

@@ -1,68 +0,0 @@
/*
* Copyright (C) 2011 Freescale Semiconductor, Inc. All Rights Reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#ifndef __MACH_MXS_GPMI_NAND_H__
#define __MACH_MXS_GPMI_NAND_H__
/* The size of the resources is fixed. */
#define GPMI_NAND_RES_SIZE 6
/* Resource names for the GPMI NAND driver. */
#define GPMI_NAND_GPMI_REGS_ADDR_RES_NAME "gpmi-nand"
#define GPMI_NAND_GPMI_INTERRUPT_RES_NAME "GPMI NAND GPMI Interrupt"
#define GPMI_NAND_BCH_REGS_ADDR_RES_NAME "bch"
#define GPMI_NAND_BCH_INTERRUPT_RES_NAME "bch"
#define GPMI_NAND_DMA_CHANNELS_RES_NAME "GPMI NAND DMA Channels"
#define GPMI_NAND_DMA_INTERRUPT_RES_NAME "gpmi-dma"
/**
* struct gpmi_nand_platform_data - GPMI NAND driver platform data.
*
* This structure communicates platform-specific information to the GPMI NAND
* driver that can't be expressed as resources.
*
* @platform_init: A pointer to a function the driver will call to
* initialize the platform (e.g., set up the pin mux).
* @min_prop_delay_in_ns: Minimum propagation delay of GPMI signals to and
* from the NAND Flash device, in nanoseconds.
* @max_prop_delay_in_ns: Maximum propagation delay of GPMI signals to and
* from the NAND Flash device, in nanoseconds.
* @max_chip_count: The maximum number of chips for which the driver
* should configure the hardware. This value most
* likely reflects the number of pins that are
* connected to a NAND Flash device. If this is
* greater than the SoC hardware can support, the
* driver will print a message and fail to initialize.
* @partitions: An optional pointer to an array of partition
* descriptions.
* @partition_count: The number of elements in the partitions array.
*/
struct gpmi_nand_platform_data {
/* SoC hardware information. */
int (*platform_init)(void);
/* NAND Flash information. */
unsigned int min_prop_delay_in_ns;
unsigned int max_prop_delay_in_ns;
unsigned int max_chip_count;
/* Medium information. */
struct mtd_partition *partitions;
unsigned partition_count;
};
#endif

4
include/linux/mtd/map.h
View File

@@ -328,7 +328,7 @@ static inline int map_word_bitsset(struct map_info *map, map_word val1, map_word
static inline map_word map_word_load(struct map_info *map, const void *ptr)
{
map_word r;
map_word r = {{0} };
if (map_bankwidth_is_1(map))
r.x[0] = *(unsigned char *)ptr;
@@ -391,7 +391,7 @@ static inline map_word map_word_ff(struct map_info *map)
static inline map_word inline_map_read(struct map_info *map, unsigned long ofs)
{
map_word r;
map_word uninitialized_var(r);
if (map_bankwidth_is_1(map))
r.x[0] = __raw_readb(map->virt + ofs);

2
include/linux/mtd/mtd.h
View File

@@ -98,7 +98,7 @@ struct mtd_oob_ops {
};
#define MTD_MAX_OOBFREE_ENTRIES_LARGE 32
#define MTD_MAX_ECCPOS_ENTRIES_LARGE 448
#define MTD_MAX_ECCPOS_ENTRIES_LARGE 640
/*
* Internal ECC layout control structure. For historical reasons, there is a
* similar, smaller struct nand_ecclayout_user (in mtd-abi.h) that is retained

11
include/linux/mtd/nand.h
View File

@@ -219,6 +219,13 @@ typedef enum {
#define NAND_OWN_BUFFERS 0x00020000
/* Chip may not exist, so silence any errors in scan */
#define NAND_SCAN_SILENT_NODEV 0x00040000
/*
* Autodetect nand buswidth with readid/onfi.
* This suppose the driver will configure the hardware in 8 bits mode
* when calling nand_scan_ident, and update its configuration
* before calling nand_scan_tail.
*/
#define NAND_BUSWIDTH_AUTO 0x00080000
/* Options set by nand scan */
/* Nand scan has allocated controller struct */
@@ -471,8 +478,8 @@ struct nand_buffers {
* non 0 if ONFI supported.
* @onfi_params: [INTERN] holds the ONFI page parameter when ONFI is
* supported, 0 otherwise.
* @onfi_set_features [REPLACEABLE] set the features for ONFI nand
* @onfi_get_features [REPLACEABLE] get the features for ONFI nand
* @onfi_set_features: [REPLACEABLE] set the features for ONFI nand
* @onfi_get_features: [REPLACEABLE] get the features for ONFI nand
* @ecclayout: [REPLACEABLE] the default ECC placement scheme
* @bbt: [INTERN] bad block table pointer
* @bbt_td: [REPLACEABLE] bad block table descriptor for flash

14
include/linux/mtd/sh_flctl.h
View File

@@ -20,6 +20,7 @@
#ifndef __SH_FLCTL_H__
#define __SH_FLCTL_H__
#include <linux/completion.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/nand.h>
#include <linux/mtd/partitions.h>
@@ -107,6 +108,7 @@
#define ESTERINTE (0x1 << 24) /* ECC error interrupt enable */
#define AC1CLR (0x1 << 19) /* ECC FIFO clear */
#define AC0CLR (0x1 << 18) /* Data FIFO clear */
#define DREQ0EN (0x1 << 16) /* FLDTFIFODMA Request Enable */
#define ECERB (0x1 << 9) /* ECC error */
#define STERB (0x1 << 8) /* Status error */
#define STERINTE (0x1 << 4) /* Status error enable */
@@ -138,6 +140,8 @@ enum flctl_ecc_res_t {
FL_TIMEOUT
};
struct dma_chan;
struct sh_flctl {
struct mtd_info mtd;
struct nand_chip chip;
@@ -147,7 +151,7 @@ struct sh_flctl {
uint8_t done_buff[2048 + 64]; /* max size 2048 + 64 */
int read_bytes;
int index;
unsigned int index;
int seqin_column; /* column in SEQIN cmd */
int seqin_page_addr; /* page_addr in SEQIN cmd */
uint32_t seqin_read_cmd; /* read cmd in SEQIN cmd */
@@ -161,6 +165,11 @@ struct sh_flctl {
unsigned hwecc:1; /* Hardware ECC (0 = disabled, 1 = enabled) */
unsigned holden:1; /* Hardware has FLHOLDCR and HOLDEN is set */
unsigned qos_request:1; /* QoS request to prevent deep power shutdown */
/* DMA related objects */
struct dma_chan *chan_fifo0_rx;
struct dma_chan *chan_fifo0_tx;
struct completion dma_complete;
};
struct sh_flctl_platform_data {
@@ -170,6 +179,9 @@ struct sh_flctl_platform_data {
unsigned has_hwecc:1;
unsigned use_holden:1;
unsigned int slave_id_fifo0_tx;
unsigned int slave_id_fifo0_rx;
};
static inline struct sh_flctl *mtd_to_flctl(struct mtd_info *mtdinfo)

16
include/linux/platform_data/mtd-nomadik-nand.h
View File

@@ -1,16 +0,0 @@
#ifndef __ASM_ARCH_NAND_H
#define __ASM_ARCH_NAND_H
struct nomadik_nand_platform_data {
struct mtd_partition *parts;
int nparts;
int options;
int (*init) (void);
int (*exit) (void);
};
#define NAND_IO_DATA 0x40000000
#define NAND_IO_CMD 0x40800000
#define NAND_IO_ADDR 0x41000000
#endif /* __ASM_ARCH_NAND_H */