Patchwork powerpc/powernv: Fix OPAL debug entry

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Submitter Benjamin Herrenschmidt
Date Oct. 22, 2012, 12:30 a.m.
Message ID <1350865852.2476.143.camel@pasglop>
Download mbox | patch
Permalink /patch/193068/
State Accepted, archived
Commit ab7f961a58b3d3390148d18cf95ae4ce6a411b21
Delegated to: Benjamin Herrenschmidt
Headers show

Comments

Benjamin Herrenschmidt - Oct. 22, 2012, 12:30 a.m.
OPAL provides the firmware base/entry in registers at boot time
for debugging purposes. We had a bug in the code trying to stash
these into the appropriate kernel globals (a line of code was
probably dropped by accident back when this was merged)

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
 arch/powerpc/kernel/head_64.S |    1 +
 1 file changed, 1 insertion(+)

Patch

diff --git a/arch/powerpc/kernel/head_64.S b/arch/powerpc/kernel/head_64.S
index 58bddee..694e3fa 100644
--- a/arch/powerpc/kernel/head_64.S
+++ b/arch/powerpc/kernel/head_64.S
@@ -703,6 +703,7 @@  _INIT_STATIC(start_here_multiplatform)
 
 #ifdef CONFIG_PPC_EARLY_DEBUG_OPAL
 	/* Setup OPAL entry */
+	LOAD_REG_ADDR(r11, opal)
 	std	r28,0(r11);
 	std	r29,8(r11);
 #endif