projects / people / ms / u-boot.git / blame
| Commit | Line | Data |
|---|---|---|
| efee1709 WD |
1 | /* |
| 2 | * Copyright (C) 2000 Murray Jensen <Murray.Jensen@cmst.csiro.au> | |
| 3 | * | |
| 1a459660 | 4 | * SPDX-License-Identifier: GPL-2.0+ |
| efee1709 WD |
5 | */ |
| 6 | ||
| 7 | #include <config.h> | |
| 8 | #include <command.h> | |
| 9 | #include <mpc8xx.h> | |
| 10 | #include <version.h> | |
| 11 | ||
| 12 | #define CONFIG_8xx 1 /* needed for Linux kernel header files */ | |
| 13 | #define _LINUX_CONFIG_H 1 /* avoid reading Linux autoconf.h file */ | |
| 14 | ||
| 15 | #include <ppc_asm.tmpl> | |
| 16 | #include <ppc_defs.h> | |
| 17 | ||
| 18 | #include <asm/cache.h> | |
| 19 | #include <asm/mmu.h> | |
| 20 | ||
| 4431283c | 21 | #if defined(CONFIG_CMD_KGDB) |
| efee1709 WD |
22 | |
| 23 | /* | |
| 24 | * cache flushing routines for kgdb | |
| 25 | */ | |
| 26 | ||
| 27 | .globl kgdb_flush_cache_all | |
| 28 | kgdb_flush_cache_all: | |
| 29 | lis r3, IDC_INVALL@h | |
| 30 | mtspr DC_CST, r3 | |
| 31 | sync | |
| 32 | lis r3, IDC_INVALL@h | |
| 33 | mtspr IC_CST, r3 | |
| 34 | SYNC | |
| 35 | blr | |
| 36 | ||
| 37 | .globl kgdb_flush_cache_range | |
| 38 | kgdb_flush_cache_range: | |
| 6d0f6bcf | 39 | li r5,CONFIG_SYS_CACHELINE_SIZE-1 |
| efee1709 WD |
40 | andc r3,r3,r5 |
| 41 | subf r4,r3,r4 | |
| 42 | add r4,r4,r5 | |
| 6d0f6bcf | 43 | srwi. r4,r4,CONFIG_SYS_CACHELINE_SHIFT |
| efee1709 WD |
44 | beqlr |
| 45 | mtctr r4 | |
| 46 | mr r6,r3 | |
| 47 | 1: dcbst 0,r3 | |
| 6d0f6bcf | 48 | addi r3,r3,CONFIG_SYS_CACHELINE_SIZE |
| efee1709 WD |
49 | bdnz 1b |
| 50 | sync /* wait for dcbst's to get to ram */ | |
| 51 | mtctr r4 | |
| 52 | 2: icbi 0,r6 | |
| 6d0f6bcf | 53 | addi r6,r6,CONFIG_SYS_CACHELINE_SIZE |
| efee1709 WD |
54 | bdnz 2b |
| 55 | SYNC | |
| 56 | blr | |
| 57 | ||
| 068b60a0 | 58 | #endif |