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authorJosh Cartwright <josh.cartwright@ni.com>2012-11-19 10:16:01 -0600
committerMichal Simek <michal.simek@xilinx.com>2012-11-21 10:52:05 +0100
commit385f02b1696004461d89589e69ae7247081a74a2 (patch)
treee0dcb931d728fae053f01994d60288c73414a2f5 /arch/arm/include
parent667f2988e2c11b25e79a46aff2f269696dbe8dc1 (diff)
ARM: zynq: make use of debug_ll_io_init()
Convert low-level debugging routines to make use of debug_ll_io_init(). This is part of the preparation for ARCH_MULTIPLATFORM support for Zynq. Signed-off-by: Josh Cartwright <josh.cartwright@ni.com> Tested-by: Michal Simek <michal.simek@xilinx.com>
Diffstat (limited to 'arch/arm/include')
-rw-r--r--arch/arm/include/debug/zynq.S35
1 files changed, 35 insertions, 0 deletions
diff --git a/arch/arm/include/debug/zynq.S b/arch/arm/include/debug/zynq.S
new file mode 100644
index 00000000000..08aed97120e
--- /dev/null
+++ b/arch/arm/include/debug/zynq.S
@@ -0,0 +1,35 @@
+/*
+ * Debugging macro include header
+ *
+ * Copyright (C) 2011 Xilinx
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#include <mach/zynq_soc.h>
+#include <mach/uart.h>
+
+ .macro addruart, rp, rv, tmp
+ ldr \rp, =LL_UART_PADDR @ physical
+ ldr \rv, =LL_UART_VADDR @ virtual
+ .endm
+
+ .macro senduart,rd,rx
+ str \rd, [\rx, #UART_FIFO_OFFSET] @ TXDATA
+ .endm
+
+ .macro waituart,rd,rx
+ .endm
+
+ .macro busyuart,rd,rx
+1002: ldr \rd, [\rx, #UART_SR_OFFSET] @ get status register
+ tst \rd, #UART_SR_TXFULL @
+ bne 1002b @ wait if FIFO is full
+ .endm