From cfbcdade763c87c7dde52020b8b98d399540ede2 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Heiko=20St=C3=BCbner?= Date: Sat, 18 Feb 2017 19:46:27 +0100 Subject: rockchip: mkimage: Allow encoding of loader code in spl images Rockchip SoCs allow the spl code to be rc4-encoded, not only the image header, but only newer SoCs allow this encoding to be disabled. The rk3188 is not part of those and requires its boot code to be rc4-encoded with the regular key. So add the ability to do this encoding via a setting on a per-soc basis when building spl images. Signed-off-by: Heiko Stuebner Reviewed-by: Simon Glass Reviewed-by: Kever Yang Tested-by: Kever Yang --- tools/rkcommon.h | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+) (limited to 'tools/rkcommon.h') diff --git a/tools/rkcommon.h b/tools/rkcommon.h index c69540f..b4f6f32 100644 --- a/tools/rkcommon.h +++ b/tools/rkcommon.h @@ -55,4 +55,26 @@ int rkcommon_get_spl_size(struct image_tool_params *params); int rkcommon_set_header(void *buf, uint file_size, struct image_tool_params *params); +/** + * rkcommon_need_rc4_spl() - check if rc4 encoded spl is required + * + * Some socs cannot disable the rc4-encryption of the spl binary. + * rc4 encryption is disabled normally except on socs that cannot + * handle unencrypted binaries. + * @return true or false depending on rc4 being required. + */ +bool rkcommon_need_rc4_spl(struct image_tool_params *params); + +/** + * rkcommon_rc4_encode_spl() - encode the spl binary + * + * Encrypts the SPL binary using the generic rc4 key as required + * by some socs. + * + * @buf: Pointer to the SPL data (header and SPL binary) + * @offset: offset inside buf to start at + * @size: number of bytes to encode + */ +void rkcommon_rc4_encode_spl(void *buf, unsigned int offset, unsigned int size); + #endif -- cgit v1.1