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-rw-r--r--arch/arm/mm/proc-feroceon.S233
1 files changed, 82 insertions, 151 deletions
diff --git a/arch/arm/mm/proc-feroceon.S b/arch/arm/mm/proc-feroceon.S
index b4597edbff9..db79b62c92f 100644
--- a/arch/arm/mm/proc-feroceon.S
+++ b/arch/arm/mm/proc-feroceon.S
@@ -98,6 +98,7 @@ ENTRY(cpu_feroceon_proc_fin)
* loc: location to jump to for soft reset
*/
.align 5
+ .pushsection .idmap.text, "ax"
ENTRY(cpu_feroceon_reset)
mov ip, #0
mcr p15, 0, ip, c7, c7, 0 @ invalidate I,D caches
@@ -110,6 +111,8 @@ ENTRY(cpu_feroceon_reset)
bic ip, ip, #0x1100 @ ...i...s........
mcr p15, 0, ip, c1, c0, 0 @ ctrl register
mov pc, r0
+ENDPROC(cpu_feroceon_reset)
+ .popsection
/*
* cpu_feroceon_do_idle()
@@ -229,6 +232,7 @@ ENTRY(feroceon_coherent_user_range)
cmp r0, r1
blo 1b
mcr p15, 0, r0, c7, c10, 4 @ drain WB
+ mov r0, #0
mov pc, lr
/*
@@ -411,29 +415,32 @@ ENTRY(feroceon_dma_unmap_area)
mov pc, lr
ENDPROC(feroceon_dma_unmap_area)
-ENTRY(feroceon_cache_fns)
- .long feroceon_flush_icache_all
- .long feroceon_flush_kern_cache_all
- .long feroceon_flush_user_cache_all
- .long feroceon_flush_user_cache_range
- .long feroceon_coherent_kern_range
- .long feroceon_coherent_user_range
- .long feroceon_flush_kern_dcache_area
- .long feroceon_dma_map_area
- .long feroceon_dma_unmap_area
- .long feroceon_dma_flush_range
-
-ENTRY(feroceon_range_cache_fns)
- .long feroceon_flush_icache_all
- .long feroceon_flush_kern_cache_all
- .long feroceon_flush_user_cache_all
- .long feroceon_flush_user_cache_range
- .long feroceon_coherent_kern_range
- .long feroceon_coherent_user_range
- .long feroceon_range_flush_kern_dcache_area
- .long feroceon_range_dma_map_area
- .long feroceon_dma_unmap_area
- .long feroceon_range_dma_flush_range
+ .globl feroceon_flush_kern_cache_louis
+ .equ feroceon_flush_kern_cache_louis, feroceon_flush_kern_cache_all
+
+ @ define struct cpu_cache_fns (see <asm/cacheflush.h> and proc-macros.S)
+ define_cache_functions feroceon
+
+.macro range_alias basename
+ .globl feroceon_range_\basename
+ .type feroceon_range_\basename , %function
+ .equ feroceon_range_\basename , feroceon_\basename
+.endm
+
+/*
+ * Most of the cache functions are unchanged for this case.
+ * Export suitable alias symbols for the unchanged functions:
+ */
+ range_alias flush_icache_all
+ range_alias flush_user_cache_all
+ range_alias flush_kern_cache_all
+ range_alias flush_kern_cache_louis
+ range_alias flush_user_cache_range
+ range_alias coherent_kern_range
+ range_alias coherent_user_range
+ range_alias dma_unmap_area
+
+ define_cache_functions feroceon_range
.align 5
ENTRY(cpu_feroceon_dcache_clean_area)
@@ -507,7 +514,31 @@ ENTRY(cpu_feroceon_set_pte_ext)
#endif
mov pc, lr
- __CPUINIT
+/* Suspend/resume support: taken from arch/arm/mm/proc-arm926.S */
+.globl cpu_feroceon_suspend_size
+.equ cpu_feroceon_suspend_size, 4 * 3
+#ifdef CONFIG_ARM_CPU_SUSPEND
+ENTRY(cpu_feroceon_do_suspend)
+ stmfd sp!, {r4 - r6, lr}
+ mrc p15, 0, r4, c13, c0, 0 @ PID
+ mrc p15, 0, r5, c3, c0, 0 @ Domain ID
+ mrc p15, 0, r6, c1, c0, 0 @ Control register
+ stmia r0, {r4 - r6}
+ ldmfd sp!, {r4 - r6, pc}
+ENDPROC(cpu_feroceon_do_suspend)
+
+ENTRY(cpu_feroceon_do_resume)
+ mov ip, #0
+ mcr p15, 0, ip, c8, c7, 0 @ invalidate I+D TLBs
+ mcr p15, 0, ip, c7, c7, 0 @ invalidate I+D caches
+ ldmia r0, {r4 - r6}
+ mcr p15, 0, r4, c13, c0, 0 @ PID
+ mcr p15, 0, r5, c3, c0, 0 @ Domain ID
+ mcr p15, 0, r1, c2, c0, 0 @ TTB address
+ mov r0, r6 @ control register
+ b cpu_resume_mmu
+ENDPROC(cpu_feroceon_do_resume)
+#endif
.type __feroceon_setup, #function
__feroceon_setup:
@@ -539,90 +570,27 @@ feroceon_crval:
__INITDATA
-/*
- * Purpose : Function pointers used to access above functions - all calls
- * come through these
- */
- .type feroceon_processor_functions, #object
-feroceon_processor_functions:
- .word v5t_early_abort
- .word legacy_pabort
- .word cpu_feroceon_proc_init
- .word cpu_feroceon_proc_fin
- .word cpu_feroceon_reset
- .word cpu_feroceon_do_idle
- .word cpu_feroceon_dcache_clean_area
- .word cpu_feroceon_switch_mm
- .word cpu_feroceon_set_pte_ext
- .size feroceon_processor_functions, . - feroceon_processor_functions
+ @ define struct processor (see <asm/proc-fns.h> and proc-macros.S)
+ define_processor_functions feroceon, dabort=v5t_early_abort, pabort=legacy_pabort
.section ".rodata"
- .type cpu_arch_name, #object
-cpu_arch_name:
- .asciz "armv5te"
- .size cpu_arch_name, . - cpu_arch_name
-
- .type cpu_elf_name, #object
-cpu_elf_name:
- .asciz "v5"
- .size cpu_elf_name, . - cpu_elf_name
-
- .type cpu_feroceon_name, #object
-cpu_feroceon_name:
- .asciz "Feroceon"
- .size cpu_feroceon_name, . - cpu_feroceon_name
-
- .type cpu_88fr531_name, #object
-cpu_88fr531_name:
- .asciz "Feroceon 88FR531-vd"
- .size cpu_88fr531_name, . - cpu_88fr531_name
-
- .type cpu_88fr571_name, #object
-cpu_88fr571_name:
- .asciz "Feroceon 88FR571-vd"
- .size cpu_88fr571_name, . - cpu_88fr571_name
-
- .type cpu_88fr131_name, #object
-cpu_88fr131_name:
- .asciz "Feroceon 88FR131"
- .size cpu_88fr131_name, . - cpu_88fr131_name
+ string cpu_arch_name, "armv5te"
+ string cpu_elf_name, "v5"
+ string cpu_feroceon_name, "Feroceon"
+ string cpu_88fr531_name, "Feroceon 88FR531-vd"
+ string cpu_88fr571_name, "Feroceon 88FR571-vd"
+ string cpu_88fr131_name, "Feroceon 88FR131"
.align
.section ".proc.info.init", #alloc, #execinstr
-#ifdef CONFIG_CPU_FEROCEON_OLD_ID
- .type __feroceon_old_id_proc_info,#object
-__feroceon_old_id_proc_info:
- .long 0x41009260
- .long 0xff00fff0
- .long PMD_TYPE_SECT | \
- PMD_SECT_BUFFERABLE | \
- PMD_SECT_CACHEABLE | \
- PMD_BIT4 | \
- PMD_SECT_AP_WRITE | \
- PMD_SECT_AP_READ
- .long PMD_TYPE_SECT | \
- PMD_BIT4 | \
- PMD_SECT_AP_WRITE | \
- PMD_SECT_AP_READ
- b __feroceon_setup
- .long cpu_arch_name
- .long cpu_elf_name
- .long HWCAP_SWP|HWCAP_HALF|HWCAP_THUMB|HWCAP_FAST_MULT|HWCAP_EDSP
- .long cpu_feroceon_name
- .long feroceon_processor_functions
- .long v4wbi_tlb_fns
- .long feroceon_user_fns
- .long feroceon_cache_fns
- .size __feroceon_old_id_proc_info, . - __feroceon_old_id_proc_info
-#endif
-
- .type __88fr531_proc_info,#object
-__88fr531_proc_info:
- .long 0x56055310
- .long 0xfffffff0
+.macro feroceon_proc_info name:req, cpu_val:req, cpu_mask:req, cpu_name:req, cache:req
+ .type __\name\()_proc_info,#object
+__\name\()_proc_info:
+ .long \cpu_val
+ .long \cpu_mask
.long PMD_TYPE_SECT | \
PMD_SECT_BUFFERABLE | \
PMD_SECT_CACHEABLE | \
@@ -637,59 +605,22 @@ __88fr531_proc_info:
.long cpu_arch_name
.long cpu_elf_name
.long HWCAP_SWP|HWCAP_HALF|HWCAP_THUMB|HWCAP_FAST_MULT|HWCAP_EDSP
- .long cpu_88fr531_name
+ .long \cpu_name
.long feroceon_processor_functions
.long v4wbi_tlb_fns
.long feroceon_user_fns
- .long feroceon_cache_fns
- .size __88fr531_proc_info, . - __88fr531_proc_info
+ .long \cache
+ .size __\name\()_proc_info, . - __\name\()_proc_info
+.endm
- .type __88fr571_proc_info,#object
-__88fr571_proc_info:
- .long 0x56155710
- .long 0xfffffff0
- .long PMD_TYPE_SECT | \
- PMD_SECT_BUFFERABLE | \
- PMD_SECT_CACHEABLE | \
- PMD_BIT4 | \
- PMD_SECT_AP_WRITE | \
- PMD_SECT_AP_READ
- .long PMD_TYPE_SECT | \
- PMD_BIT4 | \
- PMD_SECT_AP_WRITE | \
- PMD_SECT_AP_READ
- b __feroceon_setup
- .long cpu_arch_name
- .long cpu_elf_name
- .long HWCAP_SWP|HWCAP_HALF|HWCAP_THUMB|HWCAP_FAST_MULT|HWCAP_EDSP
- .long cpu_88fr571_name
- .long feroceon_processor_functions
- .long v4wbi_tlb_fns
- .long feroceon_user_fns
- .long feroceon_range_cache_fns
- .size __88fr571_proc_info, . - __88fr571_proc_info
+#ifdef CONFIG_CPU_FEROCEON_OLD_ID
+ feroceon_proc_info feroceon_old_id, 0x41009260, 0xff00fff0, \
+ cpu_name=cpu_feroceon_name, cache=feroceon_cache_fns
+#endif
- .type __88fr131_proc_info,#object
-__88fr131_proc_info:
- .long 0x56251310
- .long 0xfffffff0
- .long PMD_TYPE_SECT | \
- PMD_SECT_BUFFERABLE | \
- PMD_SECT_CACHEABLE | \
- PMD_BIT4 | \
- PMD_SECT_AP_WRITE | \
- PMD_SECT_AP_READ
- .long PMD_TYPE_SECT | \
- PMD_BIT4 | \
- PMD_SECT_AP_WRITE | \
- PMD_SECT_AP_READ
- b __feroceon_setup
- .long cpu_arch_name
- .long cpu_elf_name
- .long HWCAP_SWP|HWCAP_HALF|HWCAP_THUMB|HWCAP_FAST_MULT|HWCAP_EDSP
- .long cpu_88fr131_name
- .long feroceon_processor_functions
- .long v4wbi_tlb_fns
- .long feroceon_user_fns
- .long feroceon_range_cache_fns
- .size __88fr131_proc_info, . - __88fr131_proc_info
+ feroceon_proc_info 88fr531, 0x56055310, 0xfffffff0, cpu_88fr531_name, \
+ cache=feroceon_cache_fns
+ feroceon_proc_info 88fr571, 0x56155710, 0xfffffff0, cpu_88fr571_name, \
+ cache=feroceon_range_cache_fns
+ feroceon_proc_info 88fr131, 0x56251310, 0xfffffff0, cpu_88fr131_name, \
+ cache=feroceon_range_cache_fns
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-11-09 22:14:41 +0000