diff options
| author | Soby Mathew <soby.mathew@arm.com> | 2015-06-08 12:32:50 +0100 |
|---|---|---|
| committer | Achin Gupta <achin.gupta@arm.com> | 2015-08-13 23:48:07 +0100 |
| commit | 58523c076a4bd766fccd207c493cf1b918fda9db (patch) | |
| tree | 1b929799f1a48c5bd5415b78a765bfe77c719cfd /docs/user-guide.md | |
| parent | f9e858b1f7b27d8e0b89cc7e12e7a90755d0dd00 (diff) | |
PSCI: Add documentation and fix plat_is_my_cpu_primary()
This patch adds the necessary documentation updates to porting_guide.md
for the changes in the platform interface mandated as a result of the new
PSCI Topology and power state management frameworks. It also adds a
new document `platform-migration-guide.md` to aid the migration of existing
platform ports to the new API.
The patch fixes the implementation and callers of
plat_is_my_cpu_primary() to use w0 as the return parameter as implied by
the function signature rather than x0 which was used previously.
Change-Id: Ic11e73019188c8ba2bd64c47e1729ff5acdcdd5b
Diffstat (limited to 'docs/user-guide.md')
| -rw-r--r-- | docs/user-guide.md | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/docs/user-guide.md b/docs/user-guide.md index b9b69b36..8f271cf0 100644 --- a/docs/user-guide.md +++ b/docs/user-guide.md @@ -351,7 +351,12 @@ performed. * `PROGRAMMABLE_RESET_ADDRESS`: This option indicates whether the reset vector address can be programmed or is fixed on the platform. It can take - either 0 (fixed) or 1 (programmable). Default is 0. + either 0 (fixed) or 1 (programmable). Default is 0. If the platform has a + programmable reset address, it is expected that a CPU will start executing + code directly at the right address, both on a cold and warm reset. In this + case, there is no need to identify the entrypoint on boot and this has + implication for `plat_get_my_entrypoint()` platform porting interface. + (see the [Porting Guide] for details) * `PSCI_EXTENDED_STATE_ID`: As per PSCI1.0 Specification, there are 2 formats possible for the PSCI power-state parameter viz original and extended @@ -1092,4 +1097,5 @@ _Copyright (c) 2013-2015, ARM Limited and Contributors. All rights reserved._ [Juno Software Guide]: http://community.arm.com/docs/DOC-8396 [DS-5]: http://www.arm.com/products/tools/software-tools/ds-5/index.php [mbedTLS Repository]: https://github.com/ARMmbed/mbedtls.git +[Porting Guide]: ./porting-guide.md [Trusted Board Boot]: trusted-board-boot.md |