ARM: proc-*.S: place cpu_reset functions into .idmap.text section

The CPU reset functions disable the MMU and therefore must be executed with an identity mapping in place. This patch places the CPU reset functions into the .idmap.text section, causing the idmap code to include them as part of the identity mapping. Acked-by: Dave Martin <dave.martin@linaro.org> Signed-off-by: Will Deacon <will.deacon@arm.com>
git-mirror · Dec 6, 2011 · 1a4baaf · 1a4baaf
1 parent e6eadc6
commit 1a4baaf
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diff --git a/arch/arm/mm/proc-arm1020.S b/arch/arm/mm/proc-arm1020.S
@@ -95,6 +95,7 @@ ENTRY(cpu_arm1020_proc_fin)
  * loc: location to jump to for soft reset
  */
 	.align	5
+	.pushsection	.idmap.text, "ax"
 ENTRY(cpu_arm1020_reset)
 	mov	ip, #0
 	mcr	p15, 0, ip, c7, c7, 0		@ invalidate I,D caches
@@ -107,6 +108,8 @@ ENTRY(cpu_arm1020_reset)
 	bic	ip, ip, #0x1100 		@ ...i...s........
 	mcr	p15, 0, ip, c1, c0, 0		@ ctrl register
 	mov	pc, r0
+ENDPROC(cpu_arm1020_reset)
+	.popsection
 
 /*
  * cpu_arm1020_do_idle()

diff --git a/arch/arm/mm/proc-arm1020e.S b/arch/arm/mm/proc-arm1020e.S
@@ -95,6 +95,7 @@ ENTRY(cpu_arm1020e_proc_fin)
  * loc: location to jump to for soft reset
  */
 	.align	5
+	.pushsection	.idmap.text, "ax"
 ENTRY(cpu_arm1020e_reset)
 	mov	ip, #0
 	mcr	p15, 0, ip, c7, c7, 0		@ invalidate I,D caches
@@ -107,6 +108,8 @@ ENTRY(cpu_arm1020e_reset)
 	bic	ip, ip, #0x1100 		@ ...i...s........
 	mcr	p15, 0, ip, c1, c0, 0		@ ctrl register
 	mov	pc, r0
+ENDPROC(cpu_arm1020e_reset)
+	.popsection
 
 /*
  * cpu_arm1020e_do_idle()

diff --git a/arch/arm/mm/proc-arm1022.S b/arch/arm/mm/proc-arm1022.S
@@ -84,6 +84,7 @@ ENTRY(cpu_arm1022_proc_fin)
  * loc: location to jump to for soft reset
  */
 	.align	5
+	.pushsection	.idmap.text, "ax"
 ENTRY(cpu_arm1022_reset)
 	mov	ip, #0
 	mcr	p15, 0, ip, c7, c7, 0		@ invalidate I,D caches
@@ -96,6 +97,8 @@ ENTRY(cpu_arm1022_reset)
 	bic	ip, ip, #0x1100 		@ ...i...s........
 	mcr	p15, 0, ip, c1, c0, 0		@ ctrl register
 	mov	pc, r0
+ENDPROC(cpu_arm1022_reset)
+	.popsection
 
 /*
  * cpu_arm1022_do_idle()

diff --git a/arch/arm/mm/proc-arm1026.S b/arch/arm/mm/proc-arm1026.S
@@ -84,6 +84,7 @@ ENTRY(cpu_arm1026_proc_fin)
  * loc: location to jump to for soft reset
  */
 	.align	5
+	.pushsection	.idmap.text, "ax"
 ENTRY(cpu_arm1026_reset)
 	mov	ip, #0
 	mcr	p15, 0, ip, c7, c7, 0		@ invalidate I,D caches
@@ -96,6 +97,8 @@ ENTRY(cpu_arm1026_reset)
 	bic	ip, ip, #0x1100 		@ ...i...s........
 	mcr	p15, 0, ip, c1, c0, 0		@ ctrl register
 	mov	pc, r0
+ENDPROC(cpu_arm1026_reset)
+	.popsection
 
 /*
  * cpu_arm1026_do_idle()

diff --git a/arch/arm/mm/proc-arm6_7.S b/arch/arm/mm/proc-arm6_7.S
@@ -225,6 +225,7 @@ ENTRY(cpu_arm7_set_pte_ext)
  * Params  : r0 = address to jump to
  * Notes   : This sets up everything for a reset
  */
+		.pushsection	.idmap.text, "ax"
 ENTRY(cpu_arm6_reset)
 ENTRY(cpu_arm7_reset)
 		mov	r1, #0
@@ -235,6 +236,9 @@ ENTRY(cpu_arm7_reset)
 		mov	r1, #0x30
 		mcr	p15, 0, r1, c1, c0, 0		@ turn off MMU etc
 		mov	pc, r0
+ENDPROC(cpu_arm6_reset)
+ENDPROC(cpu_arm7_reset)
+		.popsection
 
 		__CPUINIT
 

diff --git a/arch/arm/mm/proc-arm720.S b/arch/arm/mm/proc-arm720.S
@@ -101,6 +101,7 @@ ENTRY(cpu_arm720_set_pte_ext)
  * Params  : r0 = address to jump to
  * Notes   : This sets up everything for a reset
  */
+		.pushsection	.idmap.text, "ax"
 ENTRY(cpu_arm720_reset)
 		mov	ip, #0
 		mcr	p15, 0, ip, c7, c7, 0		@ invalidate cache
@@ -112,6 +113,8 @@ ENTRY(cpu_arm720_reset)
 		bic	ip, ip, #0x2100			@ ..v....s........
 		mcr	p15, 0, ip, c1, c0, 0		@ ctrl register
 		mov	pc, r0
+ENDPROC(cpu_arm720_reset)
+		.popsection
 
 	__CPUINIT
 

diff --git a/arch/arm/mm/proc-arm740.S b/arch/arm/mm/proc-arm740.S
@@ -49,13 +49,16 @@ ENTRY(cpu_arm740_proc_fin)
  * Params  : r0 = address to jump to
  * Notes   : This sets up everything for a reset
  */
+	.pushsection	.idmap.text, "ax"
 ENTRY(cpu_arm740_reset)
 	mov	ip, #0
 	mcr	p15, 0, ip, c7, c0, 0		@ invalidate cache
 	mrc	p15, 0, ip, c1, c0, 0		@ get ctrl register
 	bic	ip, ip, #0x0000000c		@ ............wc..
 	mcr	p15, 0, ip, c1, c0, 0		@ ctrl register
 	mov	pc, r0
+ENDPROC(cpu_arm740_reset)
+	.popsection
 
 	__CPUINIT
 

diff --git a/arch/arm/mm/proc-arm7tdmi.S b/arch/arm/mm/proc-arm7tdmi.S
@@ -45,8 +45,11 @@ ENTRY(cpu_arm7tdmi_proc_fin)
  * Params  : loc(r0)	address to jump to
  * Purpose : Sets up everything for a reset and jump to the location for soft reset.
  */
+		.pushsection	.idmap.text, "ax"
 ENTRY(cpu_arm7tdmi_reset)
 		mov	pc, r0
+ENDPROC(cpu_arm7tdmi_reset)
+		.popsection
 
 		__CPUINIT
 

diff --git a/arch/arm/mm/proc-arm920.S b/arch/arm/mm/proc-arm920.S
@@ -85,6 +85,7 @@ ENTRY(cpu_arm920_proc_fin)
  * loc: location to jump to for soft reset
  */
 	.align	5
+	.pushsection	.idmap.text, "ax"
 ENTRY(cpu_arm920_reset)
 	mov	ip, #0
 	mcr	p15, 0, ip, c7, c7, 0		@ invalidate I,D caches
@@ -97,6 +98,8 @@ ENTRY(cpu_arm920_reset)
 	bic	ip, ip, #0x1100			@ ...i...s........
 	mcr	p15, 0, ip, c1, c0, 0		@ ctrl register
 	mov	pc, r0
+ENDPROC(cpu_arm920_reset)
+	.popsection
 
 /*
  * cpu_arm920_do_idle()

diff --git a/arch/arm/mm/proc-arm922.S b/arch/arm/mm/proc-arm922.S
@@ -87,6 +87,7 @@ ENTRY(cpu_arm922_proc_fin)
  * loc: location to jump to for soft reset
  */
 	.align	5
+	.pushsection	.idmap.text, "ax"
 ENTRY(cpu_arm922_reset)
 	mov	ip, #0
 	mcr	p15, 0, ip, c7, c7, 0		@ invalidate I,D caches
@@ -99,6 +100,8 @@ ENTRY(cpu_arm922_reset)
 	bic	ip, ip, #0x1100			@ ...i...s........
 	mcr	p15, 0, ip, c1, c0, 0		@ ctrl register
 	mov	pc, r0
+ENDPROC(cpu_arm922_reset)
+	.popsection
 
 /*
  * cpu_arm922_do_idle()

diff --git a/arch/arm/mm/proc-arm925.S b/arch/arm/mm/proc-arm925.S
@@ -108,13 +108,16 @@ ENTRY(cpu_arm925_proc_fin)
  * loc: location to jump to for soft reset
  */
 	.align	5
+	.pushsection	.idmap.text, "ax"
 ENTRY(cpu_arm925_reset)
 	/* Send software reset to MPU and DSP */
 	mov	ip, #0xff000000
 	orr	ip, ip, #0x00fe0000
 	orr	ip, ip, #0x0000ce00
 	mov	r4, #1
 	strh	r4, [ip, #0x10]
+ENDPROC(cpu_arm925_reset)
+	.popsection
 
 	mov	ip, #0
 	mcr	p15, 0, ip, c7, c7, 0		@ invalidate I,D caches

diff --git a/arch/arm/mm/proc-arm926.S b/arch/arm/mm/proc-arm926.S
@@ -77,6 +77,7 @@ ENTRY(cpu_arm926_proc_fin)
  * loc: location to jump to for soft reset
  */
 	.align	5
+	.pushsection	.idmap.text, "ax"
 ENTRY(cpu_arm926_reset)
 	mov	ip, #0
 	mcr	p15, 0, ip, c7, c7, 0		@ invalidate I,D caches
@@ -89,6 +90,8 @@ ENTRY(cpu_arm926_reset)
 	bic	ip, ip, #0x1100			@ ...i...s........
 	mcr	p15, 0, ip, c1, c0, 0		@ ctrl register
 	mov	pc, r0
+ENDPROC(cpu_arm926_reset)
+	.popsection
 
 /*
  * cpu_arm926_do_idle()

diff --git a/arch/arm/mm/proc-arm940.S b/arch/arm/mm/proc-arm940.S
@@ -48,6 +48,7 @@ ENTRY(cpu_arm940_proc_fin)
  * Params  : r0 = address to jump to
  * Notes   : This sets up everything for a reset
  */
+	.pushsection	.idmap.text, "ax"
 ENTRY(cpu_arm940_reset)
 	mov	ip, #0
 	mcr	p15, 0, ip, c7, c5, 0		@ flush I cache
@@ -58,6 +59,8 @@ ENTRY(cpu_arm940_reset)
 	bic	ip, ip, #0x00001000		@ i-cache
 	mcr	p15, 0, ip, c1, c0, 0		@ ctrl register
 	mov	pc, r0
+ENDPROC(cpu_arm940_reset)
+	.popsection
 
 /*
  * cpu_arm940_do_idle()

diff --git a/arch/arm/mm/proc-arm946.S b/arch/arm/mm/proc-arm946.S
@@ -55,6 +55,7 @@ ENTRY(cpu_arm946_proc_fin)
  * Params  : r0 = address to jump to
  * Notes   : This sets up everything for a reset
  */
+	.pushsection	.idmap.text, "ax"
 ENTRY(cpu_arm946_reset)
 	mov	ip, #0
 	mcr	p15, 0, ip, c7, c5, 0		@ flush I cache
@@ -65,6 +66,8 @@ ENTRY(cpu_arm946_reset)
 	bic	ip, ip, #0x00001000		@ i-cache
 	mcr	p15, 0, ip, c1, c0, 0		@ ctrl register
 	mov	pc, r0
+ENDPROC(cpu_arm946_reset)
+	.popsection
 
 /*
  * cpu_arm946_do_idle()

diff --git a/arch/arm/mm/proc-arm9tdmi.S b/arch/arm/mm/proc-arm9tdmi.S
@@ -45,8 +45,11 @@ ENTRY(cpu_arm9tdmi_proc_fin)
  * Params  : loc(r0)	address to jump to
  * Purpose : Sets up everything for a reset and jump to the location for soft reset.
  */
+		.pushsection	.idmap.text, "ax"
 ENTRY(cpu_arm9tdmi_reset)
 		mov	pc, r0
+ENDPROC(cpu_arm9tdmi_reset)
+		.popsection
 
 		__CPUINIT
 

diff --git a/arch/arm/mm/proc-fa526.S b/arch/arm/mm/proc-fa526.S
@@ -57,6 +57,7 @@ ENTRY(cpu_fa526_proc_fin)
  * loc: location to jump to for soft reset
  */
 	.align	4
+	.pushsection	.idmap.text, "ax"
 ENTRY(cpu_fa526_reset)
 /* TODO: Use CP8 if possible... */
 	mov	ip, #0
@@ -73,6 +74,8 @@ ENTRY(cpu_fa526_reset)
 	nop
 	nop
 	mov	pc, r0
+ENDPROC(cpu_fa526_reset)
+	.popsection
 
 /*
  * cpu_fa526_do_idle()

diff --git 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()

diff --git a/arch/arm/mm/proc-mohawk.S b/arch/arm/mm/proc-mohawk.S
@@ -69,6 +69,7 @@ ENTRY(cpu_mohawk_proc_fin)
  * (same as arm926)
  */
 	.align	5
+	.pushsection	.idmap.text, "ax"
 ENTRY(cpu_mohawk_reset)
 	mov	ip, #0
 	mcr	p15, 0, ip, c7, c7, 0		@ invalidate I,D caches
@@ -79,6 +80,8 @@ ENTRY(cpu_mohawk_reset)
 	bic	ip, ip, #0x1100			@ ...i...s........
 	mcr	p15, 0, ip, c1, c0, 0		@ ctrl register
 	mov	pc, r0
+ENDPROC(cpu_mohawk_reset)
+	.popsection
 
 /*
  * cpu_mohawk_do_idle()

diff --git a/arch/arm/mm/proc-sa110.S b/arch/arm/mm/proc-sa110.S
@@ -62,6 +62,7 @@ ENTRY(cpu_sa110_proc_fin)
  * loc: location to jump to for soft reset
  */
 	.align	5
+	.pushsection	.idmap.text, "ax"
 ENTRY(cpu_sa110_reset)
 	mov	ip, #0
 	mcr	p15, 0, ip, c7, c7, 0		@ invalidate I,D caches
@@ -74,6 +75,8 @@ ENTRY(cpu_sa110_reset)
 	bic	ip, ip, #0x1100			@ ...i...s........
 	mcr	p15, 0, ip, c1, c0, 0		@ ctrl register
 	mov	pc, r0
+ENDPROC(cpu_sa110_reset)
+	.popsection
 
 /*
  * cpu_sa110_do_idle(type)

diff --git a/arch/arm/mm/proc-sa1100.S b/arch/arm/mm/proc-sa1100.S
@@ -70,6 +70,7 @@ ENTRY(cpu_sa1100_proc_fin)
  * loc: location to jump to for soft reset
  */
 	.align	5
+	.pushsection	.idmap.text, "ax"
 ENTRY(cpu_sa1100_reset)
 	mov	ip, #0
 	mcr	p15, 0, ip, c7, c7, 0		@ invalidate I,D caches
@@ -82,6 +83,8 @@ ENTRY(cpu_sa1100_reset)
 	bic	ip, ip, #0x1100			@ ...i...s........
 	mcr	p15, 0, ip, c1, c0, 0		@ ctrl register
 	mov	pc, r0
+ENDPROC(cpu_sa1100_reset)
+	.popsection
 
 /*
  * cpu_sa1100_do_idle(type)

diff --git a/arch/arm/mm/proc-v6.S b/arch/arm/mm/proc-v6.S
@@ -55,13 +55,16 @@ ENTRY(cpu_v6_proc_fin)
  *	- loc   - location to jump to for soft reset
  */
 	.align	5
+	.pushsection	.idmap.text, "ax"
 ENTRY(cpu_v6_reset)
 	mrc	p15, 0, r1, c1, c0, 0		@ ctrl register
 	bic	r1, r1, #0x1			@ ...............m
 	mcr	p15, 0, r1, c1, c0, 0		@ disable MMU
 	mov	r1, #0
 	mcr	p15, 0, r1, c7, c5, 4		@ ISB
 	mov	pc, r0
+ENDPROC(cpu_v6_reset)
+	.popsection
 
 /*
  *	cpu_v6_do_idle()

diff --git a/arch/arm/mm/proc-v7.S b/arch/arm/mm/proc-v7.S
@@ -63,6 +63,7 @@ ENDPROC(cpu_v7_proc_fin)
  *      caches disabled.
  */
 	.align	5
+	.pushsection	.idmap.text, "ax"
 ENTRY(cpu_v7_reset)
 	mrc	p15, 0, r1, c1, c0, 0		@ ctrl register
 	bic	r1, r1, #0x1			@ ...............m
@@ -71,6 +72,7 @@ ENTRY(cpu_v7_reset)
 	isb
 	mov	pc, r0
 ENDPROC(cpu_v7_reset)
+	.popsection
 
 /*
  *	cpu_v7_do_idle()

diff --git a/arch/arm/mm/proc-xsc3.S b/arch/arm/mm/proc-xsc3.S
@@ -105,6 +105,7 @@ ENTRY(cpu_xsc3_proc_fin)
  * loc: location to jump to for soft reset
  */
 	.align	5
+	.pushsection	.idmap.text, "ax"
 ENTRY(cpu_xsc3_reset)
 	mov	r1, #PSR_F_BIT|PSR_I_BIT|SVC_MODE
 	msr	cpsr_c, r1			@ reset CPSR
@@ -119,6 +120,8 @@ ENTRY(cpu_xsc3_reset)
 	@ already containing those two last instructions to survive.
 	mcr	p15, 0, ip, c8, c7, 0		@ invalidate I and D TLBs
 	mov	pc, r0
+ENDPROC(cpu_xsc3_reset)
+	.popsection
 
 /*
  * cpu_xsc3_do_idle()

diff --git a/arch/arm/mm/proc-xscale.S b/arch/arm/mm/proc-xscale.S
@@ -142,6 +142,7 @@ ENTRY(cpu_xscale_proc_fin)
  * Beware PXA270 erratum E7.
  */
 	.align	5
+	.pushsection	.idmap.text, "ax"
 ENTRY(cpu_xscale_reset)
 	mov	r1, #PSR_F_BIT|PSR_I_BIT|SVC_MODE
 	msr	cpsr_c, r1			@ reset CPSR
@@ -160,6 +161,8 @@ ENTRY(cpu_xscale_reset)
 	@ already containing those two last instructions to survive.
 	mcr	p15, 0, ip, c8, c7, 0		@ invalidate I & D TLBs
 	mov	pc, r0
+ENDPROC(cpu_xscale_reset)
+	.popsection
 
 /*
  * cpu_xscale_do_idle()