diff options
Diffstat (limited to 'arch/mips/au1000/common/sleeper.S')
| -rw-r--r-- | arch/mips/au1000/common/sleeper.S | 154 |
1 files changed, 0 insertions, 154 deletions
diff --git a/arch/mips/au1000/common/sleeper.S b/arch/mips/au1000/common/sleeper.S deleted file mode 100644 index 4b3cf021a454..000000000000 --- a/arch/mips/au1000/common/sleeper.S +++ /dev/null @@ -1,154 +0,0 @@ -/* - * Copyright 2002 Embedded Edge, LLC - * Author: dan@embeddededge.com - * - * Sleep helper for Au1xxx sleep mode. - * - * 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. - */ - -#include <asm/asm.h> -#include <asm/mipsregs.h> -#include <asm/regdef.h> -#include <asm/stackframe.h> - - .text - .set macro - .set noat - .align 5 - -/* Save all of the processor general registers and go to sleep. - * A wakeup condition will get us back here to restore the registers. - */ -LEAF(save_and_sleep) - - subu sp, PT_SIZE - sw $1, PT_R1(sp) - sw $2, PT_R2(sp) - sw $3, PT_R3(sp) - sw $4, PT_R4(sp) - sw $5, PT_R5(sp) - sw $6, PT_R6(sp) - sw $7, PT_R7(sp) - sw $8, PT_R8(sp) - sw $9, PT_R9(sp) - sw $10, PT_R10(sp) - sw $11, PT_R11(sp) - sw $12, PT_R12(sp) - sw $13, PT_R13(sp) - sw $14, PT_R14(sp) - sw $15, PT_R15(sp) - sw $16, PT_R16(sp) - sw $17, PT_R17(sp) - sw $18, PT_R18(sp) - sw $19, PT_R19(sp) - sw $20, PT_R20(sp) - sw $21, PT_R21(sp) - sw $22, PT_R22(sp) - sw $23, PT_R23(sp) - sw $24, PT_R24(sp) - sw $25, PT_R25(sp) - sw $26, PT_R26(sp) - sw $27, PT_R27(sp) - sw $28, PT_R28(sp) - sw $29, PT_R29(sp) - sw $30, PT_R30(sp) - sw $31, PT_R31(sp) - mfc0 k0, CP0_STATUS - sw k0, 0x20(sp) - mfc0 k0, CP0_CONTEXT - sw k0, 0x1c(sp) - mfc0 k0, CP0_PAGEMASK - sw k0, 0x18(sp) - mfc0 k0, CP0_CONFIG - sw k0, 0x14(sp) - - /* Now set up the scratch registers so the boot rom will - * return to this point upon wakeup. - */ - la k0, 1f - lui k1, 0xb190 - ori k1, 0x18 - sw sp, 0(k1) - ori k1, 0x1c - sw k0, 0(k1) - -/* Put SDRAM into self refresh. Preload instructions into cache, - * issue a precharge, then auto refresh, then sleep commands to it. - */ - la t0, sdsleep - .set mips3 - cache 0x14, 0(t0) - cache 0x14, 32(t0) - cache 0x14, 64(t0) - cache 0x14, 96(t0) - .set mips0 - -sdsleep: - lui k0, 0xb400 - sw zero, 0x001c(k0) /* Precharge */ - sw zero, 0x0020(k0) /* Auto refresh */ - sw zero, 0x0030(k0) /* SDRAM sleep */ - sync - - lui k1, 0xb190 - sw zero, 0x0078(k1) /* get ready to sleep */ - sync - sw zero, 0x007c(k1) /* Put processor to sleep */ - sync - - /* This is where we return upon wakeup. - * Reload all of the registers and return. - */ -1: nop - lw k0, 0x20(sp) - mtc0 k0, CP0_STATUS - lw k0, 0x1c(sp) - mtc0 k0, CP0_CONTEXT - lw k0, 0x18(sp) - mtc0 k0, CP0_PAGEMASK - lw k0, 0x14(sp) - mtc0 k0, CP0_CONFIG - - /* We need to catch the ealry Alchemy SOCs with - * the write-only Config[OD] bit and set it back to one... - */ - jal au1x00_fixup_config_od - lw $1, PT_R1(sp) - lw $2, PT_R2(sp) - lw $3, PT_R3(sp) - lw $4, PT_R4(sp) - lw $5, PT_R5(sp) - lw $6, PT_R6(sp) - lw $7, PT_R7(sp) - lw $8, PT_R8(sp) - lw $9, PT_R9(sp) - lw $10, PT_R10(sp) - lw $11, PT_R11(sp) - lw $12, PT_R12(sp) - lw $13, PT_R13(sp) - lw $14, PT_R14(sp) - lw $15, PT_R15(sp) - lw $16, PT_R16(sp) - lw $17, PT_R17(sp) - lw $18, PT_R18(sp) - lw $19, PT_R19(sp) - lw $20, PT_R20(sp) - lw $21, PT_R21(sp) - lw $22, PT_R22(sp) - lw $23, PT_R23(sp) - lw $24, PT_R24(sp) - lw $25, PT_R25(sp) - lw $26, PT_R26(sp) - lw $27, PT_R27(sp) - lw $28, PT_R28(sp) - lw $29, PT_R29(sp) - lw $30, PT_R30(sp) - lw $31, PT_R31(sp) - addiu sp, PT_SIZE - - jr ra -END(save_and_sleep) |