From cfa460adfdefcc30d104e1a9ee44994ee349bb7b Mon Sep 17 00:00:00 2001 From: William Juul Date: Wed, 31 Oct 2007 13:53:06 +0100 Subject: Update MTD to that of Linux 2.6.22.1 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 Signed-off-by: Stig Olsen Signed-off-by: Scott Wood --- include/nand.h | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'include/nand.h') diff --git a/include/nand.h b/include/nand.h index e1285cd..83d597d 100644 --- a/include/nand.h +++ b/include/nand.h @@ -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); -- cgit v1.1 From dfbf617ff055e4216f78d358b0867c548916d14b Mon Sep 17 00:00:00 2001 From: Scott Wood Date: Thu, 12 Jun 2008 13:20:16 -0500 Subject: NAND read/write fix Implement block-skipping read/write, based on a patch from Morten Ebbell Hestens . Signed-off-by: Morten Ebbell Hestnes Signed-off-by: Scott Wood --- include/nand.h | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) (limited to 'include/nand.h') diff --git a/include/nand.h b/include/nand.h index 83d597d..d5af432 100644 --- a/include/nand.h +++ b/include/nand.h @@ -108,9 +108,10 @@ struct nand_erase_options { typedef struct nand_erase_options nand_erase_options_t; -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_read_skip_bad(nand_info_t *nand, size_t offset, size_t *length, + u_char *buffer); +int nand_write_skip_bad(nand_info_t *nand, size_t offset, size_t *length, + u_char *buffer); int nand_erase_opts(nand_info_t *meminfo, const nand_erase_options_t *opts); #define NAND_LOCK_STATUS_TIGHT 0x01 -- cgit v1.1 From e4c09508545d1c45617ba45391c03c03cbc360b9 Mon Sep 17 00:00:00 2001 From: Scott Wood Date: Mon, 30 Jun 2008 14:13:28 -0500 Subject: NAND boot: MPC8313ERDB support Note that with older board revisions, NAND boot may only work after a power-on reset, and not after a warm reset. I don't have a newer board to test on; if you have a board with a 33MHz crystal, please let me know if it works after a warm reset. Signed-off-by: Scott Wood --- include/nand.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include/nand.h') diff --git a/include/nand.h b/include/nand.h index d5af432..764e9f9 100644 --- a/include/nand.h +++ b/include/nand.h @@ -126,5 +126,7 @@ int nand_get_lock_status(nand_info_t *meminfo, ulong offset); void board_nand_select_device(struct nand_chip *nand, int chip); #endif +__attribute__((noreturn)) void nand_boot(void); + #endif /* !CFG_NAND_LEGACY */ #endif -- cgit v1.1