aboutsummaryrefslogtreecommitdiff
path: root/bl1/aarch64/bl1_entrypoint.S
diff options
context:
space:
mode:
authorSandrine Bailleux <sandrine.bailleux@arm.com>2015-06-02 17:19:43 +0100
committerSandrine Bailleux <sandrine.bailleux@arm.com>2015-06-04 11:38:58 +0100
commitbf031bba2b9dfc994a7d0c18dfc5e64469cee480 (patch)
tree883cd29a4f171803bd1ea65e34b41f73501757db /bl1/aarch64/bl1_entrypoint.S
parent52010cc779a59f2bc8a23fa5754630a6e63119a4 (diff)
downloadtrusted-firmware-a-bf031bba2b9dfc994a7d0c18dfc5e64469cee480.tar.gz
Introduce PROGRAMMABLE_RESET_ADDRESS build option
This patch introduces a new platform build option, called PROGRAMMABLE_RESET_ADDRESS, which tells whether the platform has a programmable or fixed reset vector address. If the reset vector address is fixed then the code relies on the platform_get_entrypoint() mailbox mechanism to figure out where it is supposed to jump. On the other hand, if it is programmable then it is assumed that the platform code will program directly the right address into the RVBAR register (instead of using the mailbox redirection) so the mailbox is ignored in this case. Change-Id: If59c3b11fb1f692976e1d8b96c7e2da0ebfba308
Diffstat (limited to 'bl1/aarch64/bl1_entrypoint.S')
-rw-r--r--bl1/aarch64/bl1_entrypoint.S8
1 files changed, 7 insertions, 1 deletions
diff --git a/bl1/aarch64/bl1_entrypoint.S b/bl1/aarch64/bl1_entrypoint.S
index 147c930c37..4fc52918ad 100644
--- a/bl1/aarch64/bl1_entrypoint.S
+++ b/bl1/aarch64/bl1_entrypoint.S
@@ -42,9 +42,15 @@
*/
func bl1_entrypoint
+ /* ---------------------------------------------------------------------
+ * If the reset address is programmable then bl1_entrypoint() is
+ * executed only on the cold boot path. Therefore, we can skip the warm
+ * boot mailbox mechanism.
+ * ---------------------------------------------------------------------
+ */
el3_entrypoint_common \
_set_endian=1 \
- _warm_boot_mailbox=1 \
+ _warm_boot_mailbox=!PROGRAMMABLE_RESET_ADDRESS \
_secondary_cold_boot=1 \
_init_memory=1 \
_init_c_runtime=1 \