summaryrefslogtreecommitdiffstats
path: root/arch/arm/include/debug/pl01x.S
diff options
context:
space:
mode:
Diffstat (limited to 'arch/arm/include/debug/pl01x.S')
-rw-r--r--arch/arm/include/debug/pl01x.S37
1 files changed, 37 insertions, 0 deletions
diff --git a/arch/arm/include/debug/pl01x.S b/arch/arm/include/debug/pl01x.S
new file mode 100644
index 000000000..c7e02d062
--- /dev/null
+++ b/arch/arm/include/debug/pl01x.S
@@ -0,0 +1,37 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* arch/arm/include/debug/pl01x.S
+ *
+ * Debugging macro include header
+ *
+ * Copyright (C) 1994-1999 Russell King
+ * Moved from linux/arch/arm/kernel/debug.S by Ben Dooks
+*/
+#include <linux/amba/serial.h>
+
+#ifdef CONFIG_DEBUG_UART_PHYS
+ .macro addruart, rp, rv, tmp
+ ldr \rp, =CONFIG_DEBUG_UART_PHYS
+ ldr \rv, =CONFIG_DEBUG_UART_VIRT
+ .endm
+#endif
+
+ .macro senduart,rd,rx
+ strb \rd, [\rx, #UART01x_DR]
+ .endm
+
+ .macro waituartcts,rd,rx
+ .endm
+
+ .macro waituarttxrdy,rd,rx
+1001: ldr \rd, [\rx, #UART01x_FR]
+ ARM_BE8( rev \rd, \rd )
+ tst \rd, #UART01x_FR_TXFF
+ bne 1001b
+ .endm
+
+ .macro busyuart,rd,rx
+1001: ldr \rd, [\rx, #UART01x_FR]
+ ARM_BE8( rev \rd, \rd )
+ tst \rd, #UART01x_FR_BUSY
+ bne 1001b
+ .endm