@@ -104,6 +104,16 @@ Configuration Options:
CONFIG_SYS_MAX_NAND_DEVICE
The maximum number of NAND devices you want to support.
+ CONFIG_SYS_NAND_MAX_ECCPOS
+ If specified, overrides the maximum number of ECC bytes
+ supported. Useful for reducing image size, especially with SPL.
+ This must be at least 48 if nand_base.c is used.
+
+ CONFIG_SYS_NAND_MAX_OOBFREE
+ If specified, overrides the maximum number of free OOB regions
+ supported. Useful for reducing image size, especially with SPL.
+ This must be at least 2 if nand_base.c is used.
+
CONFIG_SYS_NAND_MAX_CHIPS
The maximum number of NAND chips per device to be supported.
@@ -761,7 +761,8 @@ static int onenand_transfer_auto_oob(struct mtd_info *mtd, uint8_t *buf,
uint8_t *oob_buf = this->oob_buf;
free = this->ecclayout->oobfree;
- for (i = 0; i < MTD_MAX_OOBFREE_ENTRIES && free->length; i++, free++) {
+ for (i = 0; i < MTD_MAX_OOBFREE_ENTRIES_LARGE && free->length;
+ i++, free++) {
if (readcol >= lastgap)
readcol += free->offset - lastgap;
if (readend >= lastgap)
@@ -770,7 +771,8 @@ static int onenand_transfer_auto_oob(struct mtd_info *mtd, uint8_t *buf,
}
this->read_bufferram(mtd, 0, ONENAND_SPARERAM, oob_buf, 0, mtd->oobsize);
free = this->ecclayout->oobfree;
- for (i = 0; i < MTD_MAX_OOBFREE_ENTRIES && free->length; i++, free++) {
+ for (i = 0; i < MTD_MAX_OOBFREE_ENTRIES_LARGE && free->length;
+ i++, free++) {
int free_end = free->offset + free->length;
if (free->offset < readend && free_end > readcol) {
int st = max_t(int,free->offset,readcol);
@@ -1356,7 +1358,8 @@ static int onenand_fill_auto_oob(struct mtd_info *mtd, u_char *oob_buf,
unsigned int i;
free = this->ecclayout->oobfree;
- for (i = 0; i < MTD_MAX_OOBFREE_ENTRIES && free->length; i++, free++) {
+ for (i = 0; i < MTD_MAX_OOBFREE_ENTRIES_LARGE && free->length;
+ i++, free++) {
if (writecol >= lastgap)
writecol += free->offset - lastgap;
if (writeend >= lastgap)
@@ -1364,7 +1367,8 @@ static int onenand_fill_auto_oob(struct mtd_info *mtd, u_char *oob_buf,
lastgap = free->offset + free->length;
}
free = this->ecclayout->oobfree;
- for (i = 0; i < MTD_MAX_OOBFREE_ENTRIES && free->length; i++, free++) {
+ for (i = 0; i < MTD_MAX_OOBFREE_ENTRIES_LARGE && free->length;
+ i++, free++) {
int free_end = free->offset + free->length;
if (free->offset < writeend && free_end > writecol) {
int st = max_t(int,free->offset,writecol);
@@ -2750,7 +2754,8 @@ int onenand_scan(struct mtd_info *mtd, int maxchips)
* the out of band area
*/
this->ecclayout->oobavail = 0;
- for (i = 0; i < MTD_MAX_OOBFREE_ENTRIES &&
+
+ for (i = 0; i < MTD_MAX_OOBFREE_ENTRIES_LARGE &&
this->ecclayout->oobfree[i].length; i++)
this->ecclayout->oobavail +=
this->ecclayout->oobfree[i].length;
@@ -140,6 +140,8 @@
/* devices */
#define CONFIG_NAND_OMAP_BCH8
#define CONFIG_BCH
+#define CONFIG_SYS_NAND_MAX_OOBFREE 2
+#define CONFIG_SYS_NAND_MAX_ECCPOS 56
/* commands to include */
#include <config_cmd_default.h>
@@ -96,6 +96,29 @@ struct mtd_oob_ops {
uint8_t *oobbuf;
};
+#ifdef CONFIG_SYS_NAND_MAX_OOBFREE
+#define MTD_MAX_OOBFREE_ENTRIES_LARGE CONFIG_SYS_NAND_MAX_OOBFREE
+#else
+#define MTD_MAX_OOBFREE_ENTRIES_LARGE 32
+#endif
+
+#ifdef CONFIG_SYS_NAND_MAX_ECCPOS
+#define MTD_MAX_ECCPOS_ENTRIES_LARGE CONFIG_SYS_NAND_MAX_ECCPOS
+#else
+#define MTD_MAX_ECCPOS_ENTRIES_LARGE 640
+#endif
+
+/*
+ * ECC layout control structure. Exported to userspace for
+ * diagnosis and to allow creation of raw images
+ */
+struct nand_ecclayout {
+ uint32_t eccbytes;
+ uint32_t eccpos[MTD_MAX_ECCPOS_ENTRIES_LARGE];
+ uint32_t oobavail;
+ struct nand_oobfree oobfree[MTD_MAX_OOBFREE_ENTRIES_LARGE];
+};
+
struct mtd_info {
u_char type;
u_int32_t flags;
@@ -155,18 +155,6 @@ struct nand_oobfree {
uint32_t length;
};
-#define MTD_MAX_OOBFREE_ENTRIES 8
-/*
- * ECC layout control structure. Exported to userspace for
- * diagnosis and to allow creation of raw images
- */
-struct nand_ecclayout {
- uint32_t eccbytes;
- uint32_t eccpos[128];
- uint32_t oobavail;
- struct nand_oobfree oobfree[MTD_MAX_OOBFREE_ENTRIES];
-};
-
/**
* struct mtd_ecc_stats - error correction stats
*