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PPC: E500: Implement reboot controller

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When Linux reboots an e500 VM, it writes to a magic register in the
"global-utilities" device indicated by the device tree. We were not
emulating that device so far, rendering the VM reboot-less.

This patch implements that device with only the reboot functionality
implemented and adds it to the device tree. With this patch applied,
I can successfully reboot a -M mpc8544ds VM.

Signed-off-by: Alexander Graf <agraf@suse.de>
Reviewed-by: Andreas Färber <andreas.faerber@web.de>
This commit is contained in:
Alexander Graf 2011-06-02 13:53:40 +02:00
parent eb47d7c5d9
commit b0fb84236d
5 changed files with 146 additions and 1 deletions
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pc-bios/mpc8544ds.dtb
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pc-bios/mpc8544ds.dts
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@ -82,6 +82,12 @@
compatible = "chrp,open-pic";
device_type = "open-pic";
};
global-utilities@e0000 { //global utilities block
compatible = "fsl,mpc8544-guts";
reg = <0xe0000 0x1000>;
fsl,has-rstcr;
};
};
pci0: pci@e0008000 {