diff options
Diffstat (limited to 'post/cpu/mpc8xx/cache_8xx.S')
| -rw-r--r-- | post/cpu/mpc8xx/cache_8xx.S | 477 |
1 files changed, 0 insertions, 477 deletions
diff --git a/post/cpu/mpc8xx/cache_8xx.S b/post/cpu/mpc8xx/cache_8xx.S deleted file mode 100644 index 43649c8962..0000000000 --- a/post/cpu/mpc8xx/cache_8xx.S +++ /dev/null @@ -1,477 +0,0 @@ -/* - * Copyright (C) 2002 Wolfgang Denk <wd@denx.de> - * - * SPDX-License-Identifier: GPL-2.0+ - */ - -#include <config.h> - -#if defined(CONFIG_MPC823) || \ - defined(CONFIG_MPC850) || \ - defined(CONFIG_MPC855) || \ - defined(CONFIG_MPC860) || \ - defined(CONFIG_MPC862) - -#include <post.h> -#include <ppc_asm.tmpl> -#include <ppc_defs.h> -#include <asm/cache.h> - -#if CONFIG_POST & CONFIG_SYS_POST_CACHE - - .text - -cache_post_dinvalidate: - lis r10, IDC_INVALL@h - mtspr DC_CST, r10 - blr - -cache_post_iinvalidate: - lis r10, IDC_INVALL@h - mtspr IC_CST, r10 - isync - blr - -cache_post_ddisable: - lis r10, IDC_DISABLE@h - mtspr DC_CST, r10 - blr - -cache_post_dwb: - lis r10, IDC_ENABLE@h - mtspr DC_CST, r10 - lis r10, DC_CFWT@h - mtspr DC_CST, r10 - blr - -cache_post_dwt: - lis r10, IDC_ENABLE@h - mtspr DC_CST, r10 - lis r10, DC_SFWT@h - mtspr DC_CST, r10 - blr - -cache_post_idisable: - lis r10, IDC_DISABLE@h - mtspr IC_CST, r10 - isync - blr - -cache_post_ienable: - lis r10, IDC_ENABLE@h - mtspr IC_CST, r10 - isync - blr - -cache_post_iunlock: - lis r10, IDC_UNALL@h - mtspr IC_CST, r10 - isync - blr - -cache_post_ilock: - mtspr IC_ADR, r3 - lis r10, IDC_LDLCK@h - mtspr IC_CST, r10 - isync - blr - -/* - * turn on the data cache - * switch the data cache to write-back or write-through mode - * invalidate the data cache - * write the negative pattern to a cached area - * read the area - * - * The negative pattern must be read at the last step - */ - .global cache_post_test1 -cache_post_test1: - mflr r0 - stw r0, 4(r1) - - stwu r3, -4(r1) - stwu r4, -4(r1) - - bl cache_post_dwb - bl cache_post_dinvalidate - - /* Write the negative pattern to the test area */ - lwz r0, 0(r1) - mtctr r0 - li r0, 0xff - lwz r3, 4(r1) - subi r3, r3, 1 -1: - stbu r0, 1(r3) - bdnz 1b - - /* Read the test area */ - lwz r0, 0(r1) - mtctr r0 - lwz r4, 4(r1) - subi r4, r4, 1 - li r3, 0 -1: - lbzu r0, 1(r4) - cmpli cr0, r0, 0xff - beq 2f - li r3, -1 - b 3f -2: - bdnz 1b -3: - - bl cache_post_ddisable - bl cache_post_dinvalidate - - addi r1, r1, 8 - - lwz r0, 4(r1) - mtlr r0 - blr - -/* - * turn on the data cache - * switch the data cache to write-back or write-through mode - * invalidate the data cache - * write the zero pattern to a cached area - * turn off the data cache - * write the negative pattern to the area - * turn on the data cache - * read the area - * - * The negative pattern must be read at the last step - */ - .global cache_post_test2 -cache_post_test2: - mflr r0 - stw r0, 4(r1) - - stwu r3, -4(r1) - stwu r4, -4(r1) - - bl cache_post_dwb - bl cache_post_dinvalidate - - /* Write the zero pattern to the test area */ - lwz r0, 0(r1) - mtctr r0 - li r0, 0 - lwz r3, 4(r1) - subi r3, r3, 1 -1: - stbu r0, 1(r3) - bdnz 1b - - bl cache_post_ddisable - - /* Write the negative pattern to the test area */ - lwz r0, 0(r1) - mtctr r0 - li r0, 0xff - lwz r3, 4(r1) - subi r3, r3, 1 -1: - stbu r0, 1(r3) - bdnz 1b - - bl cache_post_dwb - - /* Read the test area */ - lwz r0, 0(r1) - mtctr r0 - lwz r4, 4(r1) - subi r4, r4, 1 - li r3, 0 -1: - lbzu r0, 1(r4) - cmpli cr0, r0, 0xff - beq 2f - li r3, -1 - b 3f -2: - bdnz 1b -3: - - bl cache_post_ddisable - bl cache_post_dinvalidate - - addi r1, r1, 8 - - lwz r0, 4(r1) - mtlr r0 - blr - -/* - * turn on the data cache - * switch the data cache to write-through mode - * invalidate the data cache - * write the zero pattern to a cached area - * flush the data cache - * write the negative pattern to the area - * turn off the data cache - * read the area - * - * The negative pattern must be read at the last step - */ - .global cache_post_test3 -cache_post_test3: - mflr r0 - stw r0, 4(r1) - - stwu r3, -4(r1) - stwu r4, -4(r1) - - bl cache_post_ddisable - bl cache_post_dinvalidate - - /* Write the zero pattern to the test area */ - lwz r0, 0(r1) - mtctr r0 - li r0, 0 - lwz r3, 4(r1) - subi r3, r3, 1 -1: - stbu r0, 1(r3) - bdnz 1b - - bl cache_post_dwt - bl cache_post_dinvalidate - - /* Write the negative pattern to the test area */ - lwz r0, 0(r1) - mtctr r0 - li r0, 0xff - lwz r3, 4(r1) - subi r3, r3, 1 -1: - stbu r0, 1(r3) - bdnz 1b - - bl cache_post_ddisable - bl cache_post_dinvalidate - - /* Read the test area */ - lwz r0, 0(r1) - mtctr r0 - lwz r4, 4(r1) - subi r4, r4, 1 - li r3, 0 -1: - lbzu r0, 1(r4) - cmpli cr0, r0, 0xff - beq 2f - li r3, -1 - b 3f -2: - bdnz 1b -3: - - addi r1, r1, 8 - - lwz r0, 4(r1) - mtlr r0 - blr - -/* - * turn on the data cache - * switch the data cache to write-back mode - * invalidate the data cache - * write the negative pattern to a cached area - * flush the data cache - * write the zero pattern to the area - * invalidate the data cache - * read the area - * - * The negative pattern must be read at the last step - */ - .global cache_post_test4 -cache_post_test4: - mflr r0 - stw r0, 4(r1) - - stwu r3, -4(r1) - stwu r4, -4(r1) - - bl cache_post_ddisable - bl cache_post_dinvalidate - - /* Write the negative pattern to the test area */ - lwz r0, 0(r1) - mtctr r0 - li r0, 0xff - lwz r3, 4(r1) - subi r3, r3, 1 -1: - stbu r0, 1(r3) - bdnz 1b - - bl cache_post_dwb - bl cache_post_dinvalidate - - /* Write the zero pattern to the test area */ - lwz r0, 0(r1) - mtctr r0 - li r0, 0 - lwz r3, 4(r1) - subi r3, r3, 1 -1: - stbu r0, 1(r3) - bdnz 1b - - bl cache_post_ddisable - bl cache_post_dinvalidate - - /* Read the test area */ - lwz r0, 0(r1) - mtctr r0 - lwz r4, 4(r1) - subi r4, r4, 1 - li r3, 0 -1: - lbzu r0, 1(r4) - cmpli cr0, r0, 0xff - beq 2f - li r3, -1 - b 3f -2: - bdnz 1b -3: - - addi r1, r1, 8 - - lwz r0, 4(r1) - mtlr r0 - blr - -cache_post_test5_1: - li r3, 0 -cache_post_test5_2: - li r3, -1 - -/* - * turn on the instruction cache - * unlock the entire instruction cache - * invalidate the instruction cache - * lock a branch instruction in the instruction cache - * replace the branch instruction with "nop" - * jump to the branch instruction - * check that the branch instruction was executed -*/ - .global cache_post_test5 -cache_post_test5: - mflr r0 - stw r0, 4(r1) - - bl cache_post_ienable - bl cache_post_iunlock - bl cache_post_iinvalidate - - /* Compute r9 = cache_post_test5_reloc */ - bl cache_post_test5_reloc -cache_post_test5_reloc: - mflr r9 - - /* Copy the test instruction to cache_post_test5_data */ - lis r3, (cache_post_test5_1 - cache_post_test5_reloc)@h - ori r3, r3, (cache_post_test5_1 - cache_post_test5_reloc)@l - add r3, r3, r9 - lis r4, (cache_post_test5_data - cache_post_test5_reloc)@h - ori r4, r4, (cache_post_test5_data - cache_post_test5_reloc)@l - add r4, r4, r9 - lwz r0, 0(r3) - stw r0, 0(r4) - - bl cache_post_iinvalidate - - /* Lock the branch instruction */ - lis r3, (cache_post_test5_data - cache_post_test5_reloc)@h - ori r3, r3, (cache_post_test5_data - cache_post_test5_reloc)@l - add r3, r3, r9 - bl cache_post_ilock - - /* Replace the test instruction */ - lis r3, (cache_post_test5_2 - cache_post_test5_reloc)@h - ori r3, r3, (cache_post_test5_2 - cache_post_test5_reloc)@l - add r3, r3, r9 - lis r4, (cache_post_test5_data - cache_post_test5_reloc)@h - ori r4, r4, (cache_post_test5_data - cache_post_test5_reloc)@l - add r4, r4, r9 - lwz r0, 0(r3) - stw r0, 0(r4) - - bl cache_post_iinvalidate - - /* Execute to the test instruction */ -cache_post_test5_data: - nop - - bl cache_post_iunlock - - lwz r0, 4(r1) - mtlr r0 - blr - -cache_post_test6_1: - li r3, -1 -cache_post_test6_2: - li r3, 0 - -/* - * turn on the instruction cache - * unlock the entire instruction cache - * invalidate the instruction cache - * lock a branch instruction in the instruction cache - * replace the branch instruction with "nop" - * jump to the branch instruction - * check that the branch instruction was executed - */ - .global cache_post_test6 -cache_post_test6: - mflr r0 - stw r0, 4(r1) - - bl cache_post_ienable - bl cache_post_iunlock - bl cache_post_iinvalidate - - /* Compute r9 = cache_post_test6_reloc */ - bl cache_post_test6_reloc -cache_post_test6_reloc: - mflr r9 - - /* Copy the test instruction to cache_post_test6_data */ - lis r3, (cache_post_test6_1 - cache_post_test6_reloc)@h - ori r3, r3, (cache_post_test6_1 - cache_post_test6_reloc)@l - add r3, r3, r9 - lis r4, (cache_post_test6_data - cache_post_test6_reloc)@h - ori r4, r4, (cache_post_test6_data - cache_post_test6_reloc)@l - add r4, r4, r9 - lwz r0, 0(r3) - stw r0, 0(r4) - - bl cache_post_iinvalidate - - /* Replace the test instruction */ - lis r3, (cache_post_test6_2 - cache_post_test6_reloc)@h - ori r3, r3, (cache_post_test6_2 - cache_post_test6_reloc)@l - add r3, r3, r9 - lis r4, (cache_post_test6_data - cache_post_test6_reloc)@h - ori r4, r4, (cache_post_test6_data - cache_post_test6_reloc)@l - add r4, r4, r9 - lwz r0, 0(r3) - stw r0, 0(r4) - - bl cache_post_iinvalidate - - /* Execute to the test instruction */ -cache_post_test6_data: - nop - - lwz r0, 4(r1) - mtlr r0 - blr - -#endif /* CONFIG_MPC823 || MPC850 || MPC855 || MPC860 */ -#endif /* CONFIG_POST & CONFIG_SYS_POST_CACHE */ |