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authorEnrico Scholz <enrico.scholz@sigma-chemnitz.de>2008-08-29 12:57:28 +0200
committerDavid Woodhouse <David.Woodhouse@intel.com>2008-09-01 21:27:32 +0100
commit43035338ad772b6a4097b2ac530b75390bee87c1 (patch)
tree6c3c65210f7e0395b49b2cdd5a3e09b5e999c603
parent5e706469a0518ec640a122aa5da22035e2af003a (diff)
[MTD] [NAND] pxa3xx_nand: moved nand definitions into shared platform header
This patch moves the exported datastructures from the pxa3xx_nand.c driver into the <mach/pxa3xx_nand.h> header. This is a plain movement without any modification of the attributes. This is the first one of a set of patches which: * allows to specify used NAND flash in the platform code and allows to turn off the old way to specify NAND characteristics in the driver. This way did not worked well as these characteristics depend on the platform and can not be derived from NAND id alone. E.g. some NAND chips share the same ID (e.g. K9K8G08U0A and K9NBG08U5A) but have different timings (which are written in the common driver currently and must be modified there). * adds 'const' annotations at various places Further patches will be sent to the mtd-list. Signed-off-by: Enrico Scholz <enrico.scholz@sigma-chemnitz.de> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
-rw-r--r--arch/arm/mach-pxa/include/mach/pxa3xx_nand.h44
-rw-r--r--drivers/mtd/nand/pxa3xx_nand.c44
2 files changed, 44 insertions, 44 deletions
diff --git a/arch/arm/mach-pxa/include/mach/pxa3xx_nand.h b/arch/arm/mach-pxa/include/mach/pxa3xx_nand.h
index eb4b190b665..0dc50d82ea7 100644
--- a/arch/arm/mach-pxa/include/mach/pxa3xx_nand.h
+++ b/arch/arm/mach-pxa/include/mach/pxa3xx_nand.h
@@ -4,6 +4,50 @@
#include <linux/mtd/mtd.h>
#include <linux/mtd/partitions.h>
+struct pxa3xx_nand_timing {
+ unsigned int tCH; /* Enable signal hold time */
+ unsigned int tCS; /* Enable signal setup time */
+ unsigned int tWH; /* ND_nWE high duration */
+ unsigned int tWP; /* ND_nWE pulse time */
+ unsigned int tRH; /* ND_nRE high duration */
+ unsigned int tRP; /* ND_nRE pulse width */
+ unsigned int tR; /* ND_nWE high to ND_nRE low for read */
+ unsigned int tWHR; /* ND_nWE high to ND_nRE low for status read */
+ unsigned int tAR; /* ND_ALE low to ND_nRE low delay */
+};
+
+struct pxa3xx_nand_cmdset {
+ uint16_t read1;
+ uint16_t read2;
+ uint16_t program;
+ uint16_t read_status;
+ uint16_t read_id;
+ uint16_t erase;
+ uint16_t reset;
+ uint16_t lock;
+ uint16_t unlock;
+ uint16_t lock_status;
+};
+
+struct pxa3xx_nand_flash {
+ struct pxa3xx_nand_timing *timing; /* NAND Flash timing */
+ struct pxa3xx_nand_cmdset *cmdset;
+
+ uint32_t page_per_block;/* Pages per block (PG_PER_BLK) */
+ uint32_t page_size; /* Page size in bytes (PAGE_SZ) */
+ uint32_t flash_width; /* Width of Flash memory (DWIDTH_M) */
+ uint32_t dfc_width; /* Width of flash controller(DWIDTH_C) */
+ uint32_t num_blocks; /* Number of physical blocks in Flash */
+ uint32_t chip_id;
+
+ /* NOTE: these are automatically calculated, do not define */
+ size_t oob_size;
+ size_t read_id_bytes;
+
+ unsigned int col_addr_cycles;
+ unsigned int row_addr_cycles;
+};
+
struct pxa3xx_nand_platform_data {
/* the data flash bus is shared between the Static Memory
diff --git a/drivers/mtd/nand/pxa3xx_nand.c b/drivers/mtd/nand/pxa3xx_nand.c
index 0cd213c8e69..203e8efefb3 100644
--- a/drivers/mtd/nand/pxa3xx_nand.c
+++ b/drivers/mtd/nand/pxa3xx_nand.c
@@ -115,50 +115,6 @@ enum {
STATE_PIO_WRITING,
};
-struct pxa3xx_nand_timing {
- unsigned int tCH; /* Enable signal hold time */
- unsigned int tCS; /* Enable signal setup time */
- unsigned int tWH; /* ND_nWE high duration */
- unsigned int tWP; /* ND_nWE pulse time */
- unsigned int tRH; /* ND_nRE high duration */
- unsigned int tRP; /* ND_nRE pulse width */
- unsigned int tR; /* ND_nWE high to ND_nRE low for read */
- unsigned int tWHR; /* ND_nWE high to ND_nRE low for status read */
- unsigned int tAR; /* ND_ALE low to ND_nRE low delay */
-};
-
-struct pxa3xx_nand_cmdset {
- uint16_t read1;
- uint16_t read2;
- uint16_t program;
- uint16_t read_status;
- uint16_t read_id;
- uint16_t erase;
- uint16_t reset;
- uint16_t lock;
- uint16_t unlock;
- uint16_t lock_status;
-};
-
-struct pxa3xx_nand_flash {
- struct pxa3xx_nand_timing *timing; /* NAND Flash timing */
- struct pxa3xx_nand_cmdset *cmdset;
-
- uint32_t page_per_block;/* Pages per block (PG_PER_BLK) */
- uint32_t page_size; /* Page size in bytes (PAGE_SZ) */
- uint32_t flash_width; /* Width of Flash memory (DWIDTH_M) */
- uint32_t dfc_width; /* Width of flash controller(DWIDTH_C) */
- uint32_t num_blocks; /* Number of physical blocks in Flash */
- uint32_t chip_id;
-
- /* NOTE: these are automatically calculated, do not define */
- size_t oob_size;
- size_t read_id_bytes;
-
- unsigned int col_addr_cycles;
- unsigned int row_addr_cycles;
-};
-
struct pxa3xx_nand_info {
struct nand_chip nand_chip;