From 366aad4d97846d02f32e8a6a824c4d6e9e5345c6 Mon Sep 17 00:00:00 2001 From: Philipp Tomsich Date: Mon, 17 Apr 2017 17:48:01 +0200 Subject: rockchip: mkimage: rewrite padding calculation for SD/MMC and SPI images In (first) breaking and (then) fixing the rkspi tool, I realised that the calculation of the required padding (for the header-size and the 2K-in-every-4K SPI layout) was not as self-explainatory as it could have been. This change rewrites the code (using new, common functions in rkcommon.c) and adds verbose in-line comments to ensure that we won't fall into the same pit in the future... Tested on the RK3399 (with has a boot0-style payload) with SD/MMC and SPI. Signed-off-by: Philipp Tomsich Acked-by: Simon Glass --- tools/rkcommon.h | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) (limited to 'tools/rkcommon.h') diff --git a/tools/rkcommon.h b/tools/rkcommon.h index cc161a6..a21321f 100644 --- a/tools/rkcommon.h +++ b/tools/rkcommon.h @@ -83,8 +83,14 @@ void rkcommon_rc4_encode_spl(void *buf, unsigned int offset, unsigned int size); * @params: Pointer to the tool params structure * @tparams: Pointer tot the image type structure (for setting * the header and header_size) + * @alignment: Alignment (a power of two) that the image should be + * padded to (e.g. 512 if we want to align with SD/MMC + * blocksizes or 2048 for the SPI format) + * + * @return bytes of padding required/added (does not include the header_size) */ -void rkcommon_vrec_header(struct image_tool_params *params, - struct image_type_params *tparams); +int rkcommon_vrec_header(struct image_tool_params *params, + struct image_type_params *tparams, + unsigned int alignment); #endif -- cgit v1.1