From 895d996676b2d538657a5e058aa316a85237487c Mon Sep 17 00:00:00 2001 From: Marek Vasut Date: Sun, 21 Apr 2013 05:52:22 +0000 Subject: imx: Align the imximage header and payload to multiples of 4k MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The MX53 ROM loads the data from NAND in multiples of pages and supports maximum page size of 4k. Thus, align the image and header to 4k to be safe from ROM bugs. Signed-off-by: Marek Vasut Cc: Albert ARIBAUD Cc: Benoît Thébaudeau Cc: Fabio Estevam Cc: Scott Wood Cc: Stefano Babic Cc: Tom Rini --- tools/imximage.c | 11 +++++++---- tools/imximage.h | 3 ++- 2 files changed, 9 insertions(+), 5 deletions(-) diff --git a/tools/imximage.c b/tools/imximage.c index 895c9de7b1..5e8e4701d3 100644 --- a/tools/imximage.c +++ b/tools/imximage.c @@ -524,11 +524,14 @@ static void imximage_set_header(void *ptr, struct stat *sbuf, int ifd, /* * ROM bug alert - * mx53 only loads 512 byte multiples. - * The remaining fraction of a block bytes would - * not be loaded. + * + * MX53 only loads 512 byte multiples in case of SD boot. + * MX53 only loads NAND page multiples in case of NAND boot and + * supports up to 4096 byte large pages, thus align to 4096. + * + * The remaining fraction of a block bytes would not be loaded! */ - *header_size_ptr = ROUND(sbuf->st_size + imxhdr->flash_offset, 512); + *header_size_ptr = ROUND(sbuf->st_size + imxhdr->flash_offset, 4096); } int imximage_check_params(struct mkimage_params *params) diff --git a/tools/imximage.h b/tools/imximage.h index 1445c1ee07..5c929e4987 100644 --- a/tools/imximage.h +++ b/tools/imximage.h @@ -157,13 +157,14 @@ typedef struct { dcd_v2_t dcd_table; } imx_header_v2_t; +/* The header must be aligned to 4k on MX53 for NAND boot */ struct imx_header { union { imx_header_v1_t hdr_v1; imx_header_v2_t hdr_v2; } header; uint32_t flash_offset; -}; +} __attribute__((aligned(4096))); typedef void (*set_dcd_val_t)(struct imx_header *imxhdr, char *name, int lineno, -- cgit v1.2.3