Add MOXA ART kernel low-level debugging port support.
Signed-off-by: Jonas Jensen <jonas.jen...@gmail.com>
---
Notes:
Applies to next-20130703
Changes since v2:
1. use alphabetic ordering in Kconfig
arch/arm/Kconfig.debug | 8 ++++++++
arch/arm/include/debug/moxart.S | 20 ++++++++++++++++++++
2 files changed, 28 insertions(+)
create mode 100644 arch/arm/include/debug/moxart.S
diff --git a/arch/arm/Kconfig.debug b/arch/arm/Kconfig.debug
index 5b7be8d..781018c 100644
--- a/arch/arm/Kconfig.debug
+++ b/arch/arm/Kconfig.debug
@@ -286,6 +286,13 @@ choice
Say Y here if you want kernel low-level debugging support
on MMP UART3.
+ config DEBUG_MOXART_UART0
+ bool "Kernel low-level debugging messages via MOXART UART0"
+ depends on ARCH_MOXART
+ help
+ Say Y here if you want kernel low-level debugging support
+ on MOXART based platforms on the UART0.
+
config DEBUG_MSM_UART1
bool "Kernel low-level debugging messages via MSM UART1"
depends on ARCH_MSM7X00A || ARCH_MSM7X30 || ARCH_QSD8X50
@@ -777,6 +784,7 @@ config DEBUG_LL_INCLUDE
DEBUG_IMX6SL_UART
default "debug/keystone.S" if DEBUG_KEYSTONE_UART0 || \
DEBUG_KEYSTONE_UART1
+ default "debug/moxart.S" if DEBUG_MOXART_UART0
default "debug/mvebu.S" if DEBUG_MVEBU_UART || \
DEBUG_MVEBU_UART_ALTERNATE
default "debug/mxs.S" if DEBUG_IMX23_UART || DEBUG_IMX28_UART
diff --git a/arch/arm/include/debug/moxart.S b/arch/arm/include/debug/moxart.S
new file mode 100644
index 0000000..a228451
--- /dev/null
+++ b/arch/arm/include/debug/moxart.S
@@ -0,0 +1,20 @@
+/*
+ * Debugging macro include header
+ *
+ * Copyright (C) 2013 Jonas Jensen
+ *
+ * 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 MOXART_UART_DEBUG_PHYS_BASE 0x98200000
+#define MOXART_UART_DEBUG_VIRT_BASE 0xf9820000
+
+ .macro addruart, rp, rv, tmp
+ ldr \rp, =MOXART_UART_DEBUG_PHYS_BASE
+ ldr \rv, =MOXART_UART_DEBUG_VIRT_BASE
+ .endm
+
+#define UART_SHIFT 2
+#include <asm/hardware/debug-8250.S>
--
1.8.2.1
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