linux-2.6.35.3-fsl-10.3.2.txt.gz patch applied

[linux-imx.git] / arch / arm / plat-mxs / include / mach / debug-macro.S

diff --git a/arch/arm/plat-mxs/include/mach/debug-macro.S b/arch/arm/plat-mxs/include/mach/debug-macro.S
new file mode 100644 (file)
index 0000000..147cda3
--- /dev/null
+++ b/arch/arm/plat-mxs/include/mach/debug-macro.S
@@ -0,0 +1,42 @@
+/*
+ * Debugging macro include header
+ *
+ * Embedded Alley Solutions, Inc <source@embeddedalley.com>
+ *
+ * Copyright 2008-2010 Freescale Semiconductor, Inc.
+ * Copyright 2008 Embedded Alley Solutions, Inc All Rights Reserved.
+ */
+
+/*
+ * The code contained herein is licensed under the GNU General Public
+ * License. You may obtain a copy of the GNU General Public License
+ * Version 2 or later at the following locations:
+ *
+ * http://www.opensource.org/licenses/gpl-license.html
+ * http://www.gnu.org/copyleft/gpl.html
+ */
+
+#include <mach/hardware.h>
+
+               .macro  addruart,rx,tmp
+               mrc     p15, 0, \rx, c1, c0
+               tst     \rx, #1                 @ MMU enabled?
+               ldreq   \rx, =MXS_LL_UART_PADDR @ physical
+               ldrne   \rx, =MXS_LL_UART_VADDR @ virtual
+               .endm
+
+               .macro  senduart,rd,rx
+               strb    \rd, [\rx, #0]          @ data register at 0
+               .endm
+
+               .macro  waituart,rd,rx
+1001:          ldr     \rd, [\rx, #0x18]       @ UARTFLG
+               tst     \rd, #1 << 5            @ UARTFLGUTXFF - 1 when full
+               bne     1001b
+               .endm
+
+               .macro  busyuart,rd,rx
+1001:          ldr     \rd, [\rx, #0x18]       @ UARTFLG
+               tst     \rd, #1 << 3            @ UARTFLGUBUSY - 1 when busy
+               bne     1001b
+               .endm