X-Git-Url: https://git.karo-electronics.de/?a=blobdiff_plain;f=arch%2Farm%2Fmm%2Fproc-v7.S;h=b5d67db2089779c9a1ba1580ec078ee9bce07dad;hb=c51e78ed58e4e4e772bdd7897470ab2e7142f9c2;hp=3db2c2f04a303711e3c154a0ea2ebb5a3c17faa2;hpb=98ca74f4d5b44e58d926a38ae160f1ff9573687e;p=karo-tx-linux.git

diff --git a/arch/arm/mm/proc-v7.S b/arch/arm/mm/proc-v7.S
index 3db2c2f04a30..b5d67db20897 100644
--- a/arch/arm/mm/proc-v7.S
+++ b/arch/arm/mm/proc-v7.S
@@ -26,7 +26,7 @@
 #endif
 
 ENTRY(cpu_v7_proc_init)
-	mov	pc, lr
+	ret	lr
 ENDPROC(cpu_v7_proc_init)
 
 ENTRY(cpu_v7_proc_fin)
@@ -34,7 +34,7 @@ ENTRY(cpu_v7_proc_fin)
 	bic	r0, r0, #0x1000			@ ...i............
 	bic	r0, r0, #0x0006			@ .............ca.
 	mcr	p15, 0, r0, c1, c0, 0		@ disable caches
-	mov	pc, lr
+	ret	lr
 ENDPROC(cpu_v7_proc_fin)
 
 /*
@@ -71,20 +71,20 @@ ENDPROC(cpu_v7_reset)
 ENTRY(cpu_v7_do_idle)
 	dsb					@ WFI may enter a low-power mode
 	wfi
-	mov	pc, lr
+	ret	lr
 ENDPROC(cpu_v7_do_idle)
 
 ENTRY(cpu_v7_dcache_clean_area)
 	ALT_SMP(W(nop))			@ MP extensions imply L1 PTW
 	ALT_UP_B(1f)
-	mov	pc, lr
+	ret	lr
 1:	dcache_line_size r2, r3
 2:	mcr	p15, 0, r0, c7, c10, 1		@ clean D entry
 	add	r0, r0, r2
 	subs	r1, r1, r2
 	bhi	2b
 	dsb	ishst
-	mov	pc, lr
+	ret	lr
 ENDPROC(cpu_v7_dcache_clean_area)
 
 	string	cpu_v7_name, "ARMv7 Processor"
@@ -152,6 +152,40 @@ ENTRY(cpu_v7_do_resume)
 ENDPROC(cpu_v7_do_resume)
 #endif
 
+/*
+ * Cortex-A9 processor functions
+ */
+	globl_equ	cpu_ca9mp_proc_init,	cpu_v7_proc_init
+	globl_equ	cpu_ca9mp_proc_fin,	cpu_v7_proc_fin
+	globl_equ	cpu_ca9mp_reset,	cpu_v7_reset
+	globl_equ	cpu_ca9mp_do_idle,	cpu_v7_do_idle
+	globl_equ	cpu_ca9mp_dcache_clean_area, cpu_v7_dcache_clean_area
+	globl_equ	cpu_ca9mp_switch_mm,	cpu_v7_switch_mm
+	globl_equ	cpu_ca9mp_set_pte_ext,	cpu_v7_set_pte_ext
+.globl	cpu_ca9mp_suspend_size
+.equ	cpu_ca9mp_suspend_size, cpu_v7_suspend_size + 4 * 2
+#ifdef CONFIG_ARM_CPU_SUSPEND
+ENTRY(cpu_ca9mp_do_suspend)
+	stmfd	sp!, {r4 - r5}
+	mrc	p15, 0, r4, c15, c0, 1		@ Diagnostic register
+	mrc	p15, 0, r5, c15, c0, 0		@ Power register
+	stmia	r0!, {r4 - r5}
+	ldmfd	sp!, {r4 - r5}
+	b	cpu_v7_do_suspend
+ENDPROC(cpu_ca9mp_do_suspend)
+
+ENTRY(cpu_ca9mp_do_resume)
+	ldmia	r0!, {r4 - r5}
+	mrc	p15, 0, r10, c15, c0, 1		@ Read Diagnostic register
+	teq	r4, r10				@ Already restored?
+	mcrne	p15, 0, r4, c15, c0, 1		@ No, so restore it
+	mrc	p15, 0, r10, c15, c0, 0		@ Read Power register
+	teq	r5, r10				@ Already restored?
+	mcrne	p15, 0, r5, c15, c0, 0		@ No, so restore it
+	b	cpu_v7_do_resume
+ENDPROC(cpu_ca9mp_do_resume)
+#endif
+
 #ifdef CONFIG_CPU_PJ4B
 	globl_equ	cpu_pj4b_switch_mm,     cpu_v7_switch_mm
 	globl_equ	cpu_pj4b_set_pte_ext,	cpu_v7_set_pte_ext
@@ -163,7 +197,7 @@ ENTRY(cpu_pj4b_do_idle)
 	dsb					@ WFI may enter a low-power mode
 	wfi
 	dsb					@barrier
-	mov	pc, lr
+	ret	lr
 ENDPROC(cpu_pj4b_do_idle)
 #else
 	globl_equ	cpu_pj4b_do_idle,  	cpu_v7_do_idle
@@ -184,16 +218,16 @@ ENDPROC(cpu_pj4b_do_suspend)
 
 ENTRY(cpu_pj4b_do_resume)
 	ldmia	r0!, {r6 - r10}
-	mcr	p15, 1, r6, c15, c1, 0  @ save CP15 - extra features
-	mcr	p15, 1, r7, c15, c2, 0	@ save CP15 - Aux Func Modes Ctrl 0
-	mcr	p15, 1, r8, c15, c1, 2	@ save CP15 - Aux Debug Modes Ctrl 2
-	mcr	p15, 1, r9, c15, c1, 1  @ save CP15 - Aux Debug Modes Ctrl 1
-	mcr	p15, 0, r10, c9, c14, 0  @ save CP15 - PMC
+	mcr	p15, 1, r6, c15, c1, 0  @ restore CP15 - extra features
+	mcr	p15, 1, r7, c15, c2, 0	@ restore CP15 - Aux Func Modes Ctrl 0
+	mcr	p15, 1, r8, c15, c1, 2	@ restore CP15 - Aux Debug Modes Ctrl 2
+	mcr	p15, 1, r9, c15, c1, 1  @ restore CP15 - Aux Debug Modes Ctrl 1
+	mcr	p15, 0, r10, c9, c14, 0  @ restore CP15 - PMC
 	b cpu_v7_do_resume
 ENDPROC(cpu_pj4b_do_resume)
 #endif
 .globl	cpu_pj4b_suspend_size
-.equ	cpu_pj4b_suspend_size, 4 * 14
+.equ	cpu_pj4b_suspend_size, cpu_v7_suspend_size + 4 * 5
 
 #endif
 
@@ -216,6 +250,7 @@ __v7_cr7mp_setup:
 __v7_ca7mp_setup:
 __v7_ca12mp_setup:
 __v7_ca15mp_setup:
+__v7_b15mp_setup:
 __v7_ca17mp_setup:
 	mov	r10, #0
 1:
@@ -407,7 +442,7 @@ __v7_setup:
 	bic	r0, r0, r5			@ clear bits them
 	orr	r0, r0, r6			@ set them
  THUMB(	orr	r0, r0, #1 << 30	)	@ Thumb exceptions
-	mov	pc, lr				@ return to head.S:__ret
+	ret	lr				@ return to head.S:__ret
 ENDPROC(__v7_setup)
 
 	.align	2
@@ -418,6 +453,7 @@ __v7_setup_stack:
 
 	@ define struct processor (see <asm/proc-fns.h> and proc-macros.S)
 	define_processor_functions v7, dabort=v7_early_abort, pabort=v7_pabort, suspend=1
+	define_processor_functions ca9mp, dabort=v7_early_abort, pabort=v7_pabort, suspend=1
 #ifdef CONFIG_CPU_PJ4B
 	define_processor_functions pj4b, dabort=v7_early_abort, pabort=v7_pabort, suspend=1
 #endif
@@ -470,7 +506,7 @@ __v7_ca5mp_proc_info:
 __v7_ca9mp_proc_info:
 	.long	0x410fc090
 	.long	0xff0ffff0
-	__v7_proc __v7_ca9mp_setup
+	__v7_proc __v7_ca9mp_setup, proc_fns = ca9mp_processor_functions
 	.size	__v7_ca9mp_proc_info, . - __v7_ca9mp_proc_info
 
 #endif	/* CONFIG_ARM_LPAE */
@@ -527,6 +563,16 @@ __v7_ca15mp_proc_info:
 	__v7_proc __v7_ca15mp_setup
 	.size	__v7_ca15mp_proc_info, . - __v7_ca15mp_proc_info
 
+	/*
+	 * Broadcom Corporation Brahma-B15 processor.
+	 */
+	.type	__v7_b15mp_proc_info, #object
+__v7_b15mp_proc_info:
+	.long	0x420f00f0
+	.long	0xff0ffff0
+	__v7_proc __v7_b15mp_setup, hwcaps = HWCAP_IDIV
+	.size	__v7_b15mp_proc_info, . - __v7_b15mp_proc_info
+
 	/*
 	 * ARM Ltd. Cortex A17 processor.
 	 */