Add MOXA ART kernel low-level debugging port support.
Signed-off-by: Jonas Jensen <jonas.jen...@gmail.com>
---
arch/arm/Kconfig.debug | 8 ++++++++
arch/arm/include/debug/moxart.S | 16 ++++++++++++++++
2 files changed, 24 insertions(+), 0 deletions(-)
create mode 100644 arch/arm/include/debug/moxart.S
diff --git a/arch/arm/Kconfig.debug b/arch/arm/Kconfig.debug
index e6a6ab1..d1ed6e5 100644
--- a/arch/arm/Kconfig.debug
+++ b/arch/arm/Kconfig.debug
@@ -447,6 +447,13 @@ choice
Say Y here if you want kernel low-level debugging support
on Allwinner A1X based platforms on the UART1.
+ 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_TEGRA_UART
depends on ARCH_TEGRA
bool "Use Tegra UART for low-level debug"
@@ -668,6 +675,7 @@ config DEBUG_LL_INCLUDE
default "debug/sirf.S" if DEBUG_SIRFPRIMA2_UART1 ||
DEBUG_SIRFMARCO_UART1
default "debug/socfpga.S" if DEBUG_SOCFPGA_UART
default "debug/sunxi.S" if DEBUG_SUNXI_UART0 || DEBUG_SUNXI_UART1
+ default "debug/moxart.S" if DEBUG_MOXART_UART0
default "debug/tegra.S" if DEBUG_TEGRA_UART
default "debug/ux500.S" if DEBUG_UX500_UART
default "debug/vexpress.S" if DEBUG_VEXPRESS_UART0_DETECT || \
diff --git a/arch/arm/include/debug/moxart.S b/arch/arm/include/debug/moxart.S
new file mode 100644
index 0000000..7ac7c76
--- /dev/null
+++ b/arch/arm/include/debug/moxart.S
@@ -0,0 +1,16 @@
+/* Copyright (C) 2013 Jonas Jensen <jonas.jen...@gmail.com>
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License,
+ * or (at your option) any later version. */
+
+#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>
--
1.7.2.5
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