Currently OneNAND initial program loader (ipl) reads only block 0 ie 128KB. However, u-boot image for apollon board is 195KB making the board unbootable with OneNAND.
Fix ipl to read CONFIG_SYS_MONITOR_LEN. CONFIG_SYS_MONITOR_LEN macro holds the U-Boot image size.
Signed-off-by: Rohit Hagargundgi <h.rohit at samsung.com> --- onenand_ipl/onenand_read.c | 27 ++++++++++++++++++++------- 1 file changed, 20 insertions(+), 7 deletions(-)
diff --git a/onenand_ipl/onenand_read.c b/onenand_ipl/onenand_read.c index 6d04943..c3b63ed 100644 --- a/onenand_ipl/onenand_read.c +++ b/onenand_ipl/onenand_read.c @@ -72,6 +72,10 @@ static inline int onenand_read_page(ulong block, ulong page, while (!(READ_INTERRUPT() & ONENAND_INT_READ)) continue;
+ /* Check for invalid block mark*/ + if (page < 2 && (onenand_readw(THIS_ONENAND(ONENAND_SPARERAM)) != 0xffff)) + return 1; + #ifdef __HAVE_ARCH_MEMCPY32 /* 32 bytes boundary memory copy */ memcpy32(buf, base, pagesize); @@ -87,6 +91,7 @@ static inline int onenand_read_page(ulong block, ulong page,
#define ONENAND_START_PAGE 1 #define ONENAND_PAGES_PER_BLOCK 64 +#define ONENAND_BLOCK_SIZE (ONENAND_PAGES_PER_BLOCK * ONENAND_PAGE_SIZE)
/** * onenand_read_block - Read a block data to buf @@ -94,20 +99,28 @@ static inline int onenand_read_page(ulong block, ulong page, */ int onenand_read_block0(unsigned char *buf) { - int page, offset = 0; + int block = 0, page = ONENAND_START_PAGE, offset = 0; int pagesize = ONENAND_PAGE_SIZE; + int nblocks = CONFIG_SYS_MONITOR_LEN / ONENAND_BLOCK_SIZE;
/* MLC OneNAND has 4KiB page size */ - if (onenand_readw(THIS_ONENAND(ONENAND_REG_TECHNOLOGY))) + if (onenand_readw(THIS_ONENAND(ONENAND_REG_TECHNOLOGY))) { pagesize <<= 1; + nblocks = (nblocks + 1) >> 1; + }
/* NOTE: you must read page from page 1 of block 0 */ /* read the block page by page*/ - for (page = ONENAND_START_PAGE; - page < ONENAND_PAGES_PER_BLOCK; page++) { - - onenand_read_page(0, page, buf + offset, pagesize); - offset += pagesize; + for (; block < nblocks; block++) { + for (; page < ONENAND_PAGES_PER_BLOCK; page++) { + if (onenand_read_page(block, page, buf + offset, pagesize)) { + /* This block is bad. Skip it and read next block */ + nblocks++; + break; + } + offset += pagesize; + } + page = 0; }
return 0;