summaryrefslogtreecommitdiffstats
diff options
context:
space:
mode:
-rw-r--r--arch/arm/boot/compressed/head.S8
-rw-r--r--arch/arm/boot/compressed/misc.c12
-rw-r--r--arch/arm/kernel/debug.S20
3 files changed, 40 insertions, 0 deletions
diff --git a/arch/arm/boot/compressed/head.S b/arch/arm/boot/compressed/head.S
index d356af7cef82..4fddc509e78e 100644
--- a/arch/arm/boot/compressed/head.S
+++ b/arch/arm/boot/compressed/head.S
@@ -27,6 +27,14 @@
.macro writeb, ch, rb
mcr p14, 0, \ch, c0, c5, 0
.endm
+#elif defined(CONFIG_CPU_V7)
+ .macro loadsp, rb
+ .endm
+ .macro writeb, ch, rb
+wait: mrc p14, 0, pc, c0, c1, 0
+ bcs wait
+ mcr p14, 0, \ch, c0, c5, 0
+ .endm
#elif defined(CONFIG_CPU_XSCALE)
.macro loadsp, rb
.endm
diff --git a/arch/arm/boot/compressed/misc.c b/arch/arm/boot/compressed/misc.c
index af6479fae931..56a0d116d271 100644
--- a/arch/arm/boot/compressed/misc.c
+++ b/arch/arm/boot/compressed/misc.c
@@ -53,6 +53,18 @@ static void icedcc_putc(int ch)
asm("mcr p14, 0, %0, c0, c5, 0" : : "r" (ch));
}
+
+#elif defined(CONFIG_CPU_V7)
+
+static void icedcc_putc(int ch)
+{
+ asm(
+ "wait: mrc p14, 0, pc, c0, c1, 0 \n\
+ bcs wait \n\
+ mcr p14, 0, %0, c0, c5, 0 "
+ : : "r" (ch));
+}
+
#elif defined(CONFIG_CPU_XSCALE)
static void icedcc_putc(int ch)
diff --git a/arch/arm/kernel/debug.S b/arch/arm/kernel/debug.S
index b121b6053cce..5c91addcaebc 100644
--- a/arch/arm/kernel/debug.S
+++ b/arch/arm/kernel/debug.S
@@ -49,6 +49,26 @@
1002:
.endm
+#elif defined(CONFIG_CPU_V7)
+
+ .macro addruart, rx
+ .endm
+
+ .macro senduart, rd, rx
+ mcr p14, 0, \rd, c0, c5, 0
+ .endm
+
+ .macro busyuart, rd, rx
+busy: mrc p14, 0, pc, c0, c1, 0
+ bcs busy
+ .endm
+
+ .macro waituart, rd, rx
+wait: mrc p14, 0, pc, c0, c1, 0
+ bcs wait
+
+ .endm
+
#elif defined(CONFIG_CPU_XSCALE)
.macro addruart, rx