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authorAnton Vorontsov <avorontsov@mvista.com>2010-06-08 09:55:50 +0000
committerKumar Gala <galak@kernel.crashing.org>2010-08-04 14:16:01 -0500
commitdee9ad718b4f0009a4170c178f7171c7b1f06f92 (patch)
treeb59f6b169881cc084bf0914e9dbe53a6964070ba /arch/powerpc/boot
parentbb863e85a74f0222f4486ddb1945ed9eb431d6c9 (diff)
downloadop-kernel-dev-dee9ad718b4f0009a4170c178f7171c7b1f06f92.zip
op-kernel-dev-dee9ad718b4f0009a4170c178f7171c7b1f06f92.tar.gz
powerpc/85xx: Fix booting for P1021MDS boards
P1021 processors have no dedicated ROM to store the QE microcode, so the fimrware is stored externally, and it is U-Boot responsibility to load it. It might be that the board is booting without QE, e.g. currently U-Boot doesn't support QE for P1021MDS boards, which means that QE isn't initialized, and so the board hangs early at boot. This patch fixes the issue by marking QE as disabled and checking the state in the probing code. U-Boot should fixup the state if it initialized the QE. Signed-off-by: Anton Vorontsov <avorontsov@mvista.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/boot')
-rw-r--r--arch/powerpc/boot/dts/p1021mds.dts1
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/powerpc/boot/dts/p1021mds.dts b/arch/powerpc/boot/dts/p1021mds.dts
index 7fad2df2..ad5b852 100644
--- a/arch/powerpc/boot/dts/p1021mds.dts
+++ b/arch/powerpc/boot/dts/p1021mds.dts
@@ -617,6 +617,7 @@
bus-frequency = <0>;
fsl,qe-num-riscs = <1>;
fsl,qe-num-snums = <28>;
+ status = "disabled"; /* no firmware loaded */
qeic: interrupt-controller@80 {
interrupt-controller;
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