ARM: 6012/1: ST SPEAr: Added basic header files for SPEAr platform

[pandora-kernel.git] / arch / arm / plat-spear / include / plat / debug-macro.S

diff --git a/arch/arm/plat-spear/include/plat/debug-macro.S b/arch/arm/plat-spear/include/plat/debug-macro.S
new file mode 100644 (file)
index 0000000..1670734
--- /dev/null
+++ b/arch/arm/plat-spear/include/plat/debug-macro.S
@@ -0,0 +1,38 @@
+/*
+ * arch/arm/plat-spear/include/plat/debug-macro.S
+ *
+ * Debugging macro include header for spear platform
+ *
+ * Copyright (C) 2009 ST Microelectronics
+ * Viresh Kumar<viresh.kumar@st.com>
+ *
+ * This file is licensed under the terms of the GNU General Public
+ * License version 2. This program is licensed "as is" without any
+ * warranty of any kind, whether express or implied.
+ */
+
+#include <linux/amba/serial.h>
+#include <mach/spear.h>
+
+               .macro  addruart, rx
+               mrc     p15, 0, \rx, c1, c0
+               tst     \rx, #1                                 @ MMU enabled?
+               moveq   \rx, =SPEAR_DBG_UART_BASE               @ Physical base
+               movne   \rx, =VA_SPEAR_DBG_UART_BASE            @ Virtual base
+               .endm
+
+               .macro  senduart, rd, rx
+               strb    \rd, [\rx, #UART01x_DR]                 @ ASC_TX_BUFFER
+               .endm
+
+               .macro  waituart, rd, rx
+1001:          ldr     \rd, [\rx, #UART01x_FR]                 @ FLAG REGISTER
+               tst     \rd, #UART01x_FR_TXFF                   @ TX_FULL
+               bne     1001b
+               .endm
+
+               .macro  busyuart, rd, rx
+1002:          ldr     \rd, [\rx, #UART01x_FR]                 @ FLAG REGISTER
+               tst     \rd, #UART011_FR_TXFE                   @ TX_EMPTY
+               beq     1002b
+               .endm