Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / arch / arm / include / debug / digicolor.S

diff --git a/kernel/arch/arm/include/debug/digicolor.S b/kernel/arch/arm/include/debug/digicolor.S
new file mode 100644 (file)
index 0000000..c951715
--- /dev/null
+++ b/kernel/arch/arm/include/debug/digicolor.S
@@ -0,0 +1,35 @@
+/*
+ * Debugging macro include header for Conexant Digicolor USART
+ *
+ * Copyright (C) 2014 Paradox Innovation Ltd.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+*/
+
+#define UA0_STATUS     0x0742
+#define UA0_EMI_REC    0x0744
+
+#define UA0_STATUS_TX_READY    0x40
+
+#ifdef CONFIG_DEBUG_UART_PHYS
+               .macro  addruart, rp, rv, tmp
+               ldr     \rp, =CONFIG_DEBUG_UART_PHYS
+               ldr     \rv, =CONFIG_DEBUG_UART_VIRT
+               .endm
+#endif
+
+               .macro  senduart,rd,rx
+               strb    \rd, [\rx, #UA0_EMI_REC]
+               .endm
+
+               .macro  waituart,rd,rx
+               .endm
+
+       .macro  busyuart,rd,rx
+1001:          ldrb    \rd, [\rx, #UA0_STATUS]
+               tst     \rd, #UA0_STATUS_TX_READY
+               beq     1001b
+               .endm