powerpc/boot: Add mfdcrx
Needed for currituck support. Signed-off-by: Tony Breeds <tony@bakeyournoodle.com> Signed-off-by: Josh Boyer <jwboyer@gmail.com>
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@ -9,6 +9,12 @@
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#define mtdcr(rn, val) \
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asm volatile("mtdcr %0,%1" : : "i"(rn), "r"(val))
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#define mfdcrx(rn) \
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({ \
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unsigned long rval; \
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asm volatile("mfdcrx %0,%1" : "=r"(rval) : "r"(rn)); \
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rval; \
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})
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/* 440GP/440GX SDRAM controller DCRs */
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#define DCRN_SDRAM0_CFGADDR 0x010
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