summaryrefslogtreecommitdiffstats
path: root/arch/arm/boot
diff options
context:
space:
mode:
Diffstat (limited to 'arch/arm/boot')
-rw-r--r--arch/arm/boot/compressed/Makefile4
-rw-r--r--arch/arm/boot/compressed/head.S22
-rw-r--r--arch/arm/boot/compressed/misc.c21
3 files changed, 41 insertions, 6 deletions
diff --git a/arch/arm/boot/compressed/Makefile b/arch/arm/boot/compressed/Makefile
index 2adc1527..adddc71 100644
--- a/arch/arm/boot/compressed/Makefile
+++ b/arch/arm/boot/compressed/Makefile
@@ -51,7 +51,11 @@ OBJS += head-at91rm9200.o
endif
ifeq ($(CONFIG_CPU_BIG_ENDIAN),y)
+ifeq ($(CONFIG_CPU_CP15),y)
OBJS += big-endian.o
+else
+# The endian should be set by h/w design.
+endif
endif
#
diff --git a/arch/arm/boot/compressed/head.S b/arch/arm/boot/compressed/head.S
index 14a9ff9..e5ab51b 100644
--- a/arch/arm/boot/compressed/head.S
+++ b/arch/arm/boot/compressed/head.S
@@ -20,11 +20,21 @@
#ifdef DEBUG
#if defined(CONFIG_DEBUG_ICEDCC)
+
+#ifdef CONFIG_CPU_V6
+ .macro loadsp, rb
+ .endm
+ .macro writeb, ch, rb
+ mcr p14, 0, \ch, c0, c5, 0
+ .endm
+#else
.macro loadsp, rb
.endm
.macro writeb, ch, rb
mcr p14, 0, \ch, c0, c1, 0
.endm
+#endif
+
#else
#include <asm/arch/debug-macro.S>
@@ -42,12 +52,6 @@
add \rb, \rb, #0x00010000 @ Ser1
#endif
.endm
-#elif defined(CONFIG_ARCH_IOP331)
- .macro loadsp, rb
- mov \rb, #0xff000000
- orr \rb, \rb, #0x00ff0000
- orr \rb, \rb, #0x0000f700 @ location of the UART
- .endm
#elif defined(CONFIG_ARCH_S3C2410)
.macro loadsp, rb
mov \rb, #0x50000000
@@ -78,9 +82,11 @@
kphex r6, 8 /* processor id */
kputc #':'
kphex r7, 8 /* architecture id */
+#ifdef CONFIG_CPU_CP15
kputc #':'
mrc p15, 0, r0, c1, c0
kphex r0, 8 /* control reg */
+#endif
kputc #'\n'
kphex r5, 8 /* decompressed kernel start */
kputc #'-'
@@ -503,7 +509,11 @@ call_kernel: bl cache_clean_flush
*/
call_cache_fn: adr r12, proc_types
+#ifdef CONFIG_CPU_CP15
mrc p15, 0, r6, c0, c0 @ get processor ID
+#else
+ ldr r6, =CONFIG_PROCESSOR_ID
+#endif
1: ldr r1, [r12, #0] @ get value
ldr r2, [r12, #4] @ get mask
eor r1, r1, r6 @ (real ^ match)
diff --git a/arch/arm/boot/compressed/misc.c b/arch/arm/boot/compressed/misc.c
index ace3fb58..283891c 100644
--- a/arch/arm/boot/compressed/misc.c
+++ b/arch/arm/boot/compressed/misc.c
@@ -30,6 +30,25 @@ static void putstr(const char *ptr);
#include <asm/arch/uncompress.h>
#ifdef CONFIG_DEBUG_ICEDCC
+
+#ifdef CONFIG_CPU_V6
+
+static void icedcc_putc(int ch)
+{
+ int status, i = 0x4000000;
+
+ do {
+ if (--i < 0)
+ return;
+
+ asm volatile ("mrc p14, 0, %0, c0, c1, 0" : "=r" (status));
+ } while (status & (1 << 29));
+
+ asm("mcr p14, 0, %0, c0, c5, 0" : : "r" (ch));
+}
+
+#else
+
static void icedcc_putc(int ch)
{
int status, i = 0x4000000;
@@ -44,6 +63,8 @@ static void icedcc_putc(int ch)
asm("mcr p14, 0, %0, c1, c0, 0" : : "r" (ch));
}
+#endif
+
#define putc(ch) icedcc_putc(ch)
#define flush() do { } while (0)
#endif
OpenPOWER on IntegriCloud