3 files changed, 68 insertions, 1 deletions

diff --git a/arch/arm/boot/compressed/head.S b/arch/arm/boot/compressed/head.S
index 77d614232d81..b371fba1b954 100644
--- a/arch/arm/boot/compressed/head.S
+++ b/arch/arm/boot/compressed/head.S
@@ -27,6 +27,12 @@
 		.macro	writeb, ch, rb
 		mcr	p14, 0, \ch, c0, c5, 0
 		.endm
+#elif defined(CONFIG_CPU_XSCALE)
+		.macro	loadsp, rb
+		.endm
+		.macro	writeb, ch, rb
+		mcr	p14, 0, \ch, c8, c0, 0
+		.endm
 #else
 		.macro	loadsp, rb
 		.endm
@@ -459,6 +465,20 @@ __armv7_mmu_cache_on:
 		mcr	p15, 0, r0, c7, c5, 4	@ ISB
 		mov	pc, r12
 
+__fa526_cache_on:
+		mov	r12, lr
+		bl	__setup_mmu
+		mov	r0, #0
+		mcr	p15, 0, r0, c7, c7, 0	@ Invalidate whole cache
+		mcr	p15, 0, r0, c7, c10, 4	@ drain write buffer
+		mcr	p15, 0, r0, c8, c7, 0	@ flush UTLB
+		mrc	p15, 0, r0, c1, c0, 0	@ read control reg
+		orr	r0, r0, #0x1000		@ I-cache enable
+		bl	__common_mmu_cache_on
+		mov	r0, #0
+		mcr	p15, 0, r0, c8, c7, 0	@ flush UTLB
+		mov	pc, r12
+
 __arm6_mmu_cache_on:
 		mov	r12, lr
 		bl	__setup_mmu
@@ -630,12 +650,30 @@ proc_types:
 		b	__armv4_mmu_cache_off
 		b	__armv4_mmu_cache_flush
 
+		.word	0x56158000		@ PXA168
+		.word	0xfffff000
+		b __armv4_mmu_cache_on
+		b __armv4_mmu_cache_off
+		b __armv5tej_mmu_cache_flush
+
+		.word	0x56056930
+		.word	0xff0ffff0		@ PXA935
+		b	__armv4_mmu_cache_on
+		b	__armv4_mmu_cache_off
+		b	__armv4_mmu_cache_flush
+
 		.word	0x56050000		@ Feroceon
 		.word	0xff0f0000
 		b	__armv4_mmu_cache_on
 		b	__armv4_mmu_cache_off
 		b	__armv5tej_mmu_cache_flush
 
+		.word	0x66015261		@ FA526
+		.word	0xff01fff1
+		b	__fa526_cache_on
+		b	__armv4_mmu_cache_off
+		b	__fa526_cache_flush
+
 		@ These match on the architecture ID
 
 		.word	0x00020000		@ ARMv4T
@@ -775,6 +813,12 @@ __armv4_mpu_cache_flush:
 		mcr	p15, 0, ip, c7, c10, 4	@ drain WB
 		mov	pc, lr
 		
+__fa526_cache_flush:
+		mov	r1, #0
+		mcr	p15, 0, r1, c7, c14, 0	@ clean and invalidate D cache
+		mcr	p15, 0, r1, c7, c5, 0	@ flush I cache
+		mcr	p15, 0, r1, c7, c10, 4	@ drain WB
+		mov	pc, lr
 
 __armv6_mmu_cache_flush:
 		mov	r1, #0
diff --git a/arch/arm/boot/compressed/misc.c b/arch/arm/boot/compressed/misc.c
index 3fc08413fff0..9e6e512f0117 100644
--- a/arch/arm/boot/compressed/misc.c
+++ b/arch/arm/boot/compressed/misc.c
@@ -18,7 +18,10 @@
 
 unsigned int __machine_arch_type;
 
-#include <linux/string.h>
+#include <linux/compiler.h>	/* for inline */
+#include <linux/types.h>	/* for size_t */
+#include <linux/stddef.h>	/* for NULL */
+#include <asm/string.h>
 
 #ifdef STANDALONE_DEBUG
 #define putstr printf
@@ -46,6 +49,21 @@ static void icedcc_putc(int ch)
 
 	asm("mcr p14, 0, %0, c0, c5, 0" : : "r" (ch));
 }
+#elif defined(CONFIG_CPU_XSCALE)
+
+static void icedcc_putc(int ch)
+{
+	int status, i = 0x4000000;
+
+	do {
+		if (--i < 0)
+			return;
+
+		asm volatile ("mrc p14, 0, %0, c14, c0, 0" : "=r" (status));
+	} while (status & (1 << 28));
+
+	asm("mcr p14, 0, %0, c8, c0, 0" : : "r" (ch));
+}
 
 #else
 
diff --git a/arch/arm/boot/compressed/vmlinux.lds.in b/arch/arm/boot/compressed/vmlinux.lds.in
index 153a07e7222b..a5924b9b88bd 100644
--- a/arch/arm/boot/compressed/vmlinux.lds.in
+++ b/arch/arm/boot/compressed/vmlinux.lds.in
@@ -11,6 +11,11 @@ OUTPUT_ARCH(arm)
 ENTRY(_start)
 SECTIONS
 {
+  /DISCARD/ : {
+    *(.ARM.exidx*)
+    *(.ARM.extab*)
+  }
+
   . = TEXT_START;
   _text = .;