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-rw-r--r--arch/arm/boot/compressed/head.S6
-rw-r--r--arch/arm/boot/compressed/misc.c15
2 files changed, 21 insertions, 0 deletions
diff --git a/arch/arm/boot/compressed/head.S b/arch/arm/boot/compressed/head.S
index 77d614232d81..d1b678dc120b 100644
--- a/arch/arm/boot/compressed/head.S
+++ b/arch/arm/boot/compressed/head.S
@@ -27,6 +27,12 @@
27 .macro writeb, ch, rb 27 .macro writeb, ch, rb
28 mcr p14, 0, \ch, c0, c5, 0 28 mcr p14, 0, \ch, c0, c5, 0
29 .endm 29 .endm
30#elif defined(CONFIG_CPU_XSCALE)
31 .macro loadsp, rb
32 .endm
33 .macro writeb, ch, rb
34 mcr p14, 0, \ch, c8, c0, 0
35 .endm
30#else 36#else
31 .macro loadsp, rb 37 .macro loadsp, rb
32 .endm 38 .endm
diff --git a/arch/arm/boot/compressed/misc.c b/arch/arm/boot/compressed/misc.c
index 3fc08413fff0..393c81641314 100644
--- a/arch/arm/boot/compressed/misc.c
+++ b/arch/arm/boot/compressed/misc.c
@@ -46,6 +46,21 @@ static void icedcc_putc(int ch)
46 46
47 asm("mcr p14, 0, %0, c0, c5, 0" : : "r" (ch)); 47 asm("mcr p14, 0, %0, c0, c5, 0" : : "r" (ch));
48} 48}
49#elif defined(CONFIG_CPU_XSCALE)
50
51static void icedcc_putc(int ch)
52{
53 int status, i = 0x4000000;
54
55 do {
56 if (--i < 0)
57 return;
58
59 asm volatile ("mrc p14, 0, %0, c14, c0, 0" : "=r" (status));
60 } while (status & (1 << 28));
61
62 asm("mcr p14, 0, %0, c8, c0, 0" : : "r" (ch));
63}
49 64
50#else 65#else
51 66