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Update MTD to that of Linux 2.6.22.1

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A lot changed in the Linux MTD code, since it was last ported from
Linux to U-Boot. This patch takes U-Boot NAND support to the level
of Linux 2.6.22.1 and will enable support for very large NAND devices
(4KB pages) and ease the compatibility between U-Boot and Linux
filesystems.

This patch is tested on two custom boards with PPC and ARM
processors running YAFFS in U-Boot and Linux using gcc-4.1.2
cross compilers.

MAKEALL ppc/arm has some issues:
 * DOC/OneNand/nand_spl is not building (I have not tried porting
   these parts, and since I do not have any HW and I am not familiar
   with this code/HW I think its best left to someone else.)

Except for the issues mentioned above, I have ported all drivers
necessary to run MAKEALL ppc/arm without errors and warnings. Many
drivers were trivial to port, but some were not so trivial. The
following drivers must be examined carefully and maybe rewritten to
some degree:
 cpu/ppc4xx/ndfc.c
 cpu/arm926ejs/davinci/nand.c
 board/delta/nand.c
 board/zylonite/nand.c

Signed-off-by: William Juul <william.juul@tandberg.com>
Signed-off-by: Stig Olsen <stig.olsen@tandberg.com>
Signed-off-by: Scott Wood <scottwood@freescale.com>
This commit is contained in:
William Juul
2007-10-31 13:53:06 +01:00
committed by Scott Wood
parent cd82919e6c
commit cfa460adfd
37 changed files with 4829 additions and 3436 deletions
Download Patch File Download Diff File Expand all files Collapse all files

3
include/nand.h
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@@ -84,6 +84,7 @@ struct nand_write_options {
};
typedef struct nand_write_options nand_write_options_t;
typedef struct mtd_oob_ops mtd_oob_ops_t;
struct nand_read_options {
u_char *buffer; /* memory block in which read image is written*/
@@ -107,7 +108,7 @@ struct nand_erase_options {
typedef struct nand_erase_options nand_erase_options_t;
int nand_write_opts(nand_info_t *meminfo, const nand_write_options_t *opts);
int nand_write_opts(nand_info_t *mtd, loff_t to, mtd_oob_ops_t *ops);
int nand_read_opts(nand_info_t *meminfo, const nand_read_options_t *opts);
int nand_erase_opts(nand_info_t *meminfo, const nand_erase_options_t *opts);