diff options
| author | Bastian Hecht <hechtb@googlemail.com> | 2012-03-01 10:48:40 +0100 |
|---|---|---|
| committer | David Woodhouse <David.Woodhouse@intel.com> | 2012-03-27 00:43:08 +0100 |
| commit | 3f2e924b26989bbe1ad600a83fdc72a3056104d1 (patch) | |
| tree | 2fb1cefdca093b69d184fbf2601db00bee899c9f /include/linux/mtd | |
| parent | 0b3f0d12eff1ed23496fcf4cf468e1d317516e53 (diff) | |
mtd: sh_flctl: Add FLHOLDCR register
Add a register used in new FLCTL hardware and a feature flag for it.
Signed-off-by: Bastian Hecht <hechtb@gmail.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Diffstat (limited to 'include/linux/mtd')
| -rw-r--r-- | include/linux/mtd/sh_flctl.h | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/include/linux/mtd/sh_flctl.h b/include/linux/mtd/sh_flctl.h index c7082820703b..8bcf299cb9bf 100644 --- a/include/linux/mtd/sh_flctl.h +++ b/include/linux/mtd/sh_flctl.h @@ -38,6 +38,7 @@ #define FLDTFIFO(f) (f->reg + 0x24) #define FLECFIFO(f) (f->reg + 0x28) #define FLTRCR(f) (f->reg + 0x2C) +#define FLHOLDCR(f) (f->reg + 0x38) #define FL4ECCRESULT0(f) (f->reg + 0x80) #define FL4ECCRESULT1(f) (f->reg + 0x84) #define FL4ECCRESULT2(f) (f->reg + 0x88) @@ -109,6 +110,15 @@ #define TRSTRT (0x1 << 0) /* translation start */ #define TREND (0x1 << 1) /* translation end */ +/* + * FLHOLDCR control bits + * + * HOLDEN: Bus Occupancy Enable (inverted) + * Enable this bit when the external bus might be used in between transfers. + * If not set and the bus gets used by other modules, a deadlock occurs. + */ +#define HOLDEN (0x1 << 0) + /* FL4ECCCR control bits */ #define _4ECCFA (0x1 << 2) /* 4 symbols correct fault */ #define _4ECCEND (0x1 << 1) /* 4 symbols end */ @@ -138,6 +148,7 @@ struct sh_flctl { unsigned page_size:1; /* NAND page size (0 = 512, 1 = 2048) */ unsigned hwecc:1; /* Hardware ECC (0 = disabled, 1 = enabled) */ + unsigned holden:1; /* Hardware has FLHOLDCR and HOLDEN is set */ }; struct sh_flctl_platform_data { @@ -146,6 +157,7 @@ struct sh_flctl_platform_data { unsigned long flcmncr_val; unsigned has_hwecc:1; + unsigned use_holden:1; }; static inline struct sh_flctl *mtd_to_flctl(struct mtd_info *mtdinfo) |