From 814bd6e3baf1fe016268a3bf1c56b6ddad8e1eff Mon Sep 17 00:00:00 2001 From: Sebastian Huber Date: Tue, 12 Jul 2016 10:02:40 +0200 Subject: bsps/powerpc: Fix AltiVec enable There must be an isync after the mtmsr to ensure that the AltiVec is enabled for subsequent instructions. --- c/src/lib/libbsp/powerpc/mvme5500/start/start.S | 1 + c/src/lib/libbsp/powerpc/psim/start/start.S | 1 + c/src/lib/libbsp/powerpc/shared/start/start.S | 1 + 3 files changed, 3 insertions(+) diff --git a/c/src/lib/libbsp/powerpc/mvme5500/start/start.S b/c/src/lib/libbsp/powerpc/mvme5500/start/start.S index e46731c886..5990c7e2d4 100644 --- a/c/src/lib/libbsp/powerpc/mvme5500/start/start.S +++ b/c/src/lib/libbsp/powerpc/mvme5500/start/start.S @@ -68,6 +68,7 @@ __rtems_entry_point: mfmsr r0 oris r0, r0, (1<<(31-16-6)) mtmsr r0 + isync /* * set vscr and vrsave to known values */ diff --git a/c/src/lib/libbsp/powerpc/psim/start/start.S b/c/src/lib/libbsp/powerpc/psim/start/start.S index 9163226387..918321af5f 100644 --- a/c/src/lib/libbsp/powerpc/psim/start/start.S +++ b/c/src/lib/libbsp/powerpc/psim/start/start.S @@ -103,6 +103,7 @@ _start: mfmsr r0 oris r0, r0, (1<<(31-16-6)) mtmsr r0 + isync /* * set vscr and vrsave to known values */ diff --git a/c/src/lib/libbsp/powerpc/shared/start/start.S b/c/src/lib/libbsp/powerpc/shared/start/start.S index 0c68a8086f..729c89c40b 100644 --- a/c/src/lib/libbsp/powerpc/shared/start/start.S +++ b/c/src/lib/libbsp/powerpc/shared/start/start.S @@ -64,6 +64,7 @@ __rtems_entry_point: mfmsr r0 oris r0, r0, (1<<(31-16-6)) mtmsr r0 + isync /* * set vscr and vrsave to known values */ -- cgit v1.2.3