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| /openbmc/linux/arch/powerpc/platforms/powernv/ |
| H A D | opal-xscom.c | 80546ac5 Thu Oct 10 03:19:15 CDT 2013 Benjamin Herrenschmidt <benh@kernel.crashing.org> powerpc/powernv: Add support for indirect XSCOM via debugfs
Indirect XSCOM addresses normally have the top bit set (of the 64-bit
address). This doesn't work via the normal debugfs interface, so we use
a different encoding, which we need to convert before calling OPAL.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
80546ac5 Thu Oct 10 03:19:15 CDT 2013 Benjamin Herrenschmidt <benh@kernel.crashing.org> powerpc/powernv: Add support for indirect XSCOM via debugfs
Indirect XSCOM addresses normally have the top bit set (of the 64-bit
address). This doesn't work via the normal debugfs interface, so we use
a different encoding, which we need to convert before calling OPAL.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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