diff options
Diffstat (limited to 'arch/arm/plat-stmp3xxx/include/mach/gpmi.h')
| -rw-r--r-- | arch/arm/plat-stmp3xxx/include/mach/gpmi.h | 70 |
1 files changed, 66 insertions, 4 deletions
diff --git a/arch/arm/plat-stmp3xxx/include/mach/gpmi.h b/arch/arm/plat-stmp3xxx/include/mach/gpmi.h index e166432910ad..21a7647fc8e4 100644 --- a/arch/arm/plat-stmp3xxx/include/mach/gpmi.h +++ b/arch/arm/plat-stmp3xxx/include/mach/gpmi.h @@ -1,12 +1,74 @@ #ifndef __MACH_GPMI_H +#include <linux/mtd/mtd.h> #include <linux/mtd/partitions.h> #include <mach/regs-gpmi.h> +#define GPMI_PART_CONCAT 0x8000 /* indicates that partitions + should be concatenated */ +extern int gpmi_pinmux_request(char *); +extern void gpmi_pinmux_free(char *); + +/** + * struct gpmi_platform_data - GPMI driver platform data. + * + * This structure communicates platform-specific information to the GPMI driver + * that can't be expressed as resources. + * + * @io_uA: The current limit, in uA. + * @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. + * @pinmux_handler: A pointer to a function the driver will call to + * request or release the pins it needs. Pass true + * to request pins, and false to release them. + * @boot_area_size_in_bytes: The amount of space reserved for use by the boot + * ROM on the first and second chips. If this value is + * zero, it indicates we're not reserving any space + * for the boot area. + * @partition_source_types: An array of strings that name sources of + * partitioning information (e.g., the boot loader, + * the kernel command line, etc.). The function + * parse_mtd_partitions() recognizes these names and + * applies the appropriate "plugins" to discover + * partitioning information. If any is found, it will + * be applied to the "general use" MTD (it will NOT + * override the boot area protection mechanism). + * @partitions: An optional pointer to an array of partition + * descriptions. If the driver finds no partitioning + * information elsewhere, it will apply these to the + * "general use" MTD (they do NOT override the boot + * area protection mechanism). + * @partition_count: The number of elements in the partitions array. + * + * ----- Stay away from the "Unique ID" -- it will be going away soon. ----- + * + * @uid_offset: The offset into the physical medium of the + * "Unique ID" area. + * @uid_size: The size of the "Unique ID" area. + */ + struct gpmi_platform_data { - void *pins; - int nr_parts; - struct mtd_partition *parts; - const char *part_types[]; + + int io_uA; + + unsigned min_prop_delay_in_ns; + unsigned max_prop_delay_in_ns; + + int (*pinmux_handler)(bool request); + + uint32_t boot_area_size_in_bytes; + + const char **partition_source_types; + + struct mtd_partition *partitions; + unsigned partition_count; + + /* Stay away from the Unique ID - it will be going away soon. */ + + u_int32_t uid_offset; + u_int32_t uid_size; + }; #endif |