diff options
Diffstat (limited to 'arch/powerpc/boot/ppc_asm.h')
| -rw-r--r-- | arch/powerpc/boot/ppc_asm.h | 45 |
1 files changed, 40 insertions, 5 deletions
diff --git a/arch/powerpc/boot/ppc_asm.h b/arch/powerpc/boot/ppc_asm.h index 1c2c2817f9b7..a66cfd76fa4d 100644 --- a/arch/powerpc/boot/ppc_asm.h +++ b/arch/powerpc/boot/ppc_asm.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ #ifndef _PPC64_PPC_ASM_H #define _PPC64_PPC_ASM_H /* @@ -5,11 +6,6 @@ * Definitions used by various bits of low-level assembly code on PowerPC. * * Copyright (C) 1995-1999 Gary Thomas, Paul Mackerras, Cort Dougan. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version - * 2 of the License, or (at your option) any later version. */ /* Condition Register Bit Fields */ @@ -59,4 +55,43 @@ #define r30 30 #define r31 31 +#define SPRN_TBRL 268 +#define SPRN_TBRU 269 +#define SPRN_HSRR0 0x13A /* Hypervisor Save/Restore 0 */ +#define SPRN_HSRR1 0x13B /* Hypervisor Save/Restore 1 */ + +#define MSR_LE 0x0000000000000001 + +#define FIXUP_ENDIAN \ + tdi 0,0,0x48; /* Reverse endian of b . + 8 */ \ + b $+44; /* Skip trampoline if endian is good */ \ + .long 0xa600607d; /* mfmsr r11 */ \ + .long 0x01006b69; /* xori r11,r11,1 */ \ + .long 0x00004039; /* li r10,0 */ \ + .long 0x6401417d; /* mtmsrd r10,1 */ \ + .long 0x05009f42; /* bcl 20,31,$+4 */ \ + .long 0xa602487d; /* mflr r10 */ \ + .long 0x14004a39; /* addi r10,r10,20 */ \ + .long 0xa6035a7d; /* mtsrr0 r10 */ \ + .long 0xa6037b7d; /* mtsrr1 r11 */ \ + .long 0x2400004c /* rfid */ + +#ifdef CONFIG_PPC_8xx +#define MFTBL(dest) mftb dest +#define MFTBU(dest) mftbu dest +#else +#define MFTBL(dest) mfspr dest, SPRN_TBRL +#define MFTBU(dest) mfspr dest, SPRN_TBRU +#endif + +#ifdef CONFIG_PPC64_BOOT_WRAPPER +#define LOAD_REG_ADDR(reg,name) \ + addis reg,r2,name@toc@ha; \ + addi reg,reg,name@toc@l +#else +#define LOAD_REG_ADDR(reg,name) \ + lis reg,name@ha; \ + addi reg,reg,name@l +#endif + #endif /* _PPC64_PPC_ASM_H */ |