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ARM: zynq: Add waituart implementation

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Add missing waituart implementation.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
This commit is contained in:
Michal Simek
2014-02-03 17:36:23 +01:00
parent 4a32c74e76
commit 1a259251f3
1 changed files with 3 additions and 0 deletions
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3
arch/arm/include/debug/zynq.S
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@ -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