[PATCH] ARM: zynq: Add waituart implementation

[Michal Simek]

Add missing waituart implementation.

Signed-off-by: Michal Simek <michal.simek at xilinx.com>
---

 arch/arm/include/debug/zynq.S | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/arch/arm/include/debug/zynq.S b/arch/arm/include/debug/zynq.S
index f9aa974..0b762fa 100644
--- a/arch/arm/include/debug/zynq.S
+++ b/arch/arm/include/debug/zynq.S
@@ -42,6 +42,9 @@
 		.endm

 		.macro	waituart,rd,rx
+1001:		ldr	\rd, [\rx, #UART_SR_OFFSET]
+		tst	\rd, #UART_SR_TXEMPTY
+		beq	1001b
 		.endm

 		.macro	busyuart,rd,rx
--
1.8.2.3

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