aboutsummaryrefslogtreecommitdiffstats
path: root/arch/arm/plat-pxa
diff options
context:
space:
mode:
authorRussell King <rmk+kernel@arm.linux.org.uk>2009-12-05 05:35:33 -0500
committerRussell King <rmk+kernel@arm.linux.org.uk>2009-12-05 05:35:33 -0500
commit0719dc341389882cc834ed18fc9b7fc6006b2b85 (patch)
tree794480ac62c07ea8cc4e69c2cb3d2b83bb7f36b7 /arch/arm/plat-pxa
parente28edb723e64200554194da17617ee6e82de6690 (diff)
parent677f4f64e4b2336682f0e15c69b206ade6f6b131 (diff)
Merge branch 'devel-stable' into devel
Diffstat (limited to 'arch/arm/plat-pxa')
-rw-r--r--arch/arm/plat-pxa/include/plat/pxa3xx_nand.h63
1 files changed, 63 insertions, 0 deletions
diff --git a/arch/arm/plat-pxa/include/plat/pxa3xx_nand.h b/arch/arm/plat-pxa/include/plat/pxa3xx_nand.h
new file mode 100644
index 000000000000..3478eae32d8a
--- /dev/null
+++ b/arch/arm/plat-pxa/include/plat/pxa3xx_nand.h
@@ -0,0 +1,63 @@
1#ifndef __ASM_ARCH_PXA3XX_NAND_H
2#define __ASM_ARCH_PXA3XX_NAND_H
3
4#include <linux/mtd/mtd.h>
5#include <linux/mtd/partitions.h>
6
7struct pxa3xx_nand_timing {
8 unsigned int tCH; /* Enable signal hold time */
9 unsigned int tCS; /* Enable signal setup time */
10 unsigned int tWH; /* ND_nWE high duration */
11 unsigned int tWP; /* ND_nWE pulse time */
12 unsigned int tRH; /* ND_nRE high duration */
13 unsigned int tRP; /* ND_nRE pulse width */
14 unsigned int tR; /* ND_nWE high to ND_nRE low for read */
15 unsigned int tWHR; /* ND_nWE high to ND_nRE low for status read */
16 unsigned int tAR; /* ND_ALE low to ND_nRE low delay */
17};
18
19struct pxa3xx_nand_cmdset {
20 uint16_t read1;
21 uint16_t read2;
22 uint16_t program;
23 uint16_t read_status;
24 uint16_t read_id;
25 uint16_t erase;
26 uint16_t reset;
27 uint16_t lock;
28 uint16_t unlock;
29 uint16_t lock_status;
30};
31
32struct pxa3xx_nand_flash {
33 const struct pxa3xx_nand_timing *timing; /* NAND Flash timing */
34 const struct pxa3xx_nand_cmdset *cmdset;
35
36 uint32_t page_per_block;/* Pages per block (PG_PER_BLK) */
37 uint32_t page_size; /* Page size in bytes (PAGE_SZ) */
38 uint32_t flash_width; /* Width of Flash memory (DWIDTH_M) */
39 uint32_t dfc_width; /* Width of flash controller(DWIDTH_C) */
40 uint32_t num_blocks; /* Number of physical blocks in Flash */
41 uint32_t chip_id;
42};
43
44struct pxa3xx_nand_platform_data {
45
46 /* the data flash bus is shared between the Static Memory
47 * Controller and the Data Flash Controller, the arbiter
48 * controls the ownership of the bus
49 */
50 int enable_arbiter;
51
52 /* allow platform code to keep OBM/bootloader defined NFC config */
53 int keep_config;
54
55 const struct mtd_partition *parts;
56 unsigned int nr_parts;
57
58 const struct pxa3xx_nand_flash * flash;
59 size_t num_flash;
60};
61
62extern void pxa3xx_set_nand_info(struct pxa3xx_nand_platform_data *info);
63#endif /* __ASM_ARCH_PXA3XX_NAND_H */