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https://github.com/AsahiLinux/u-boot
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b777a37c29
u-boot BSP generates XILINX_USE_MSR_INSTR macro even for system with MSR=0. That's why explicitly check that MSR=1. Signed-off-by: Michal Simek <monstr@monstr.eu>
98 lines
2.6 KiB
C
98 lines
2.6 KiB
C
/*
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* (C) Copyright 2007 Michal Simek
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*
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* Michal SIMEK <monstr@monstr.eu>
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*
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* See file CREDITS for list of people who contributed to this
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* project.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*/
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/* FSL macros */
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#define NGET(val, fslnum) \
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__asm__ __volatile__ ("nget %0, rfsl" #fslnum :"=r" (val));
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#define GET(val, fslnum) \
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__asm__ __volatile__ ("get %0, rfsl" #fslnum :"=r" (val));
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#define NCGET(val, fslnum) \
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__asm__ __volatile__ ("ncget %0, rfsl" #fslnum :"=r" (val));
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#define CGET(val, fslnum) \
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__asm__ __volatile__ ("cget %0, rfsl" #fslnum :"=r" (val));
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#define NPUT(val, fslnum) \
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__asm__ __volatile__ ("nput %0, rfsl" #fslnum ::"r" (val));
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#define PUT(val, fslnum) \
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__asm__ __volatile__ ("put %0, rfsl" #fslnum ::"r" (val));
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#define NCPUT(val, fslnum) \
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__asm__ __volatile__ ("ncput %0, rfsl" #fslnum ::"r" (val));
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#define CPUT(val, fslnum) \
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__asm__ __volatile__ ("cput %0, rfsl" #fslnum ::"r" (val));
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/* CPU dependent */
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/* machine status register */
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#define MFS(val, reg) \
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__asm__ __volatile__ ("mfs %0," #reg :"=r" (val));
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#define MTS(val, reg) \
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__asm__ __volatile__ ("mts " #reg ", %0"::"r" (val));
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/* get return address from interrupt */
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#define R14(val) \
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__asm__ __volatile__ ("addi %0, r14, 0":"=r" (val));
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#define NOP __asm__ __volatile__ ("nop");
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/* use machine status registe USE_MSR_REG */
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#if XILINX_USE_MSR_INSTR == 1
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#define MSRSET(val) \
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__asm__ __volatile__ ("msrset r0," #val );
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#define MSRCLR(val) \
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__asm__ __volatile__ ("msrclr r0," #val );
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#else
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#define MSRSET(val) \
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{ \
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register unsigned tmp; \
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__asm__ __volatile__ (" \
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mfs %0, rmsr; \
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ori %0, %0, "#val"; \
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mts rmsr, %0; \
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nop;" \
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: "=r" (tmp) \
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: "d" (val) \
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: "memory"); \
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}
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#define MSRCLR(val) \
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{ \
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register unsigned tmp; \
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__asm__ __volatile__ (" \
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mfs %0, rmsr; \
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andi %0, %0, ~"#val"; \
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mts rmsr, %0; \
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nop;" \
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: "=r" (tmp) \
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: "d" (val) \
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: "memory"); \
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}
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#endif
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