diff options
| author | Roberto Vargas <roberto.vargas@arm.com> | 2017-10-30 14:43:43 +0000 |
|---|---|---|
| committer | Roberto Vargas <roberto.vargas@arm.com> | 2018-01-18 09:42:35 +0000 |
| commit | b1d27b484f4172542eca074fdac42ffd13736a0f (patch) | |
| tree | aa9ceb97f7bb103de9bfc7237169aa3e833c2ba7 /bl2/bl2_main.c | |
| parent | 34c2b9c2f144e213533c00bbdedb8da5b786311b (diff) | |
bl2-el3: Add BL2_EL3 image
This patch enables BL2 to execute at the highest exception level
without any dependancy on TF BL1. This enables platforms which already
have a non-TF Boot ROM to directly load and execute BL2 and subsequent BL
stages without need for BL1. This is not currently possible because
BL2 executes at S-EL1 and cannot jump straight to EL3.
Change-Id: Ief1efca4598560b1b8c8e61fbe26d1f44e929d69
Signed-off-by: Roberto Vargas <roberto.vargas@arm.com>
Diffstat (limited to 'bl2/bl2_main.c')
| -rw-r--r-- | bl2/bl2_main.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/bl2/bl2_main.c b/bl2/bl2_main.c index 018deb34..c85db2d4 100644 --- a/bl2/bl2_main.c +++ b/bl2/bl2_main.c @@ -13,6 +13,11 @@ #include <platform.h> #include "bl2_private.h" +#ifdef AARCH32 +#define NEXT_IMAGE "BL32" +#else +#define NEXT_IMAGE "BL31" +#endif /******************************************************************************* * The only thing to do in BL2 is to load further images and pass control to @@ -49,6 +54,8 @@ void bl2_main(void) disable_mmu_icache_secure(); #endif /* AARCH32 */ + +#if !BL2_AT_EL3 console_flush(); /* @@ -57,4 +64,11 @@ void bl2_main(void) * be passed to next BL image as an argument. */ smc(BL1_SMC_RUN_IMAGE, (unsigned long)next_bl_ep_info, 0, 0, 0, 0, 0, 0); +#else + NOTICE("BL2: Booting " NEXT_IMAGE "\n"); + print_entry_point_info(next_bl_ep_info); + console_flush(); + + bl2_run_next_image(next_bl_ep_info); +#endif } |