diff options
Diffstat (limited to 'drivers/mtd/devices/docg3.h')
| -rw-r--r-- | drivers/mtd/devices/docg3.h | 20 |
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; |