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Fix JFFS2 support for legacy NAND driver.

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Some more NAND cleanup and small fixes.
This commit is contained in:
Marian Balakowicz
2006-04-08 19:08:06 +02:00
parent 2fc000d756
commit 6db3970811
38 changed files with 80 additions and 119 deletions
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38
fs/jffs2/jffs2_1pass.c
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@@ -144,7 +144,11 @@
static struct part_info *current_part;
#if defined(CONFIG_JFFS2_NAND) && (CONFIG_COMMANDS & CFG_CMD_NAND)
#if defined(CFG_NAND_LEGACY)
#include <linux/mtd/nand_legacy.h>
#else
#include <nand.h>
#endif
/*
* Support for jffs2 on top of NAND-flash
*
@@ -155,8 +159,14 @@ static struct part_info *current_part;
*
*/
#if defined(CFG_NAND_LEGACY)
/* this one defined in nand_legacy.c */
int read_jffs2_nand(size_t start, size_t len,
size_t * retlen, u_char * buf, int nanddev);
#else
/* info for NAND chips, defined in drivers/nand/nand.c */
extern nand_info_t nand_info[];
#endif
#define NAND_PAGE_SIZE 512
#define NAND_PAGE_SHIFT 9
@@ -167,7 +177,6 @@ extern nand_info_t nand_info[];
#endif
#define NAND_CACHE_SIZE (NAND_CACHE_PAGES*NAND_PAGE_SIZE)
#ifdef CFG_NAND_LEGACY
static u8* nand_cache = NULL;
static u32 nand_cache_off = (u32)-1;
@@ -175,7 +184,11 @@ static int read_nand_cached(u32 off, u32 size, u_char *buf)
{
struct mtdids *id = current_part->dev->id;
u32 bytes_read = 0;
#if defined(CFG_NAND_LEGACY)
size_t retlen;
#else
ulong retlen;
#endif
int cpy_bytes;
while (bytes_read < size) {
@@ -193,14 +206,24 @@ static int read_nand_cached(u32 off, u32 size, u_char *buf)
}
}
retlen = NAND_CACHE_SIZE;
if (nand_read(&nand_info[id->num], nand_cache_off,
&retlen, nand_cache) != 0 ||
#if defined(CFG_NAND_LEGACY)
if (read_jffs2_nand(nand_cache_off, NAND_CACHE_SIZE,
&retlen, nand_cache, id->num) < 0 ||
retlen != NAND_CACHE_SIZE) {
printf("read_nand_cached: error reading nand off %#x size %d bytes\n",
nand_cache_off, NAND_CACHE_SIZE);
return -1;
}
#else
retlen = NAND_CACHE_SIZE;
if (nand_read(&nand_info[id->num], nand_cache_off,
&retlen, nand_cache) != 0 ||
retlen != NAND_CACHE_SIZE) {
printf("read_nand_cached: error reading nand off %#x size %d bytes\n",
nand_cache_off, NAND_CACHE_SIZE);
return -1;
}
#endif
}
cpy_bytes = nand_cache_off + NAND_CACHE_SIZE - (off + bytes_read);
if (cpy_bytes > size - bytes_read)
@@ -251,7 +274,6 @@ static void put_fl_mem_nand(void *buf)
{
free(buf);
}
#endif /* CFG_NAND_LEGACY */
#endif /* #if defined(CONFIG_JFFS2_NAND) && (CONFIG_COMMANDS & CFG_CMD_NAND) */
@@ -294,7 +316,7 @@ static inline void *get_fl_mem(u32 off, u32 size, void *ext_buf)
return get_fl_mem_nor(off);
#endif
#if defined(CONFIG_JFFS2_NAND) && (CONFIG_COMMANDS & CFG_CMD_NAND) && defined(CFG_NAND_LEGACY)
#if defined(CONFIG_JFFS2_NAND) && (CONFIG_COMMANDS & CFG_CMD_NAND)
if (id->type == MTD_DEV_TYPE_NAND)
return get_fl_mem_nand(off, size, ext_buf);
#endif
@@ -312,7 +334,7 @@ static inline void *get_node_mem(u32 off)
return get_node_mem_nor(off);
#endif
#if defined(CONFIG_JFFS2_NAND) && (CONFIG_COMMANDS & CFG_CMD_NAND) && defined(CFG_NAND_LEGACY)
#if defined(CONFIG_JFFS2_NAND) && (CONFIG_COMMANDS & CFG_CMD_NAND)
if (id->type == MTD_DEV_TYPE_NAND)
return get_node_mem_nand(off);
#endif
@@ -323,7 +345,7 @@ static inline void *get_node_mem(u32 off)
static inline void put_fl_mem(void *buf)
{
#if defined(CONFIG_JFFS2_NAND) && (CONFIG_COMMANDS & CFG_CMD_NAND) && defined(CFG_NAND_LEGACY)
#if defined(CONFIG_JFFS2_NAND) && (CONFIG_COMMANDS & CFG_CMD_NAND)
struct mtdids *id = current_part->dev->id;
if (id->type == MTD_DEV_TYPE_NAND)