diff mbox

[v5,2/4] ARM: debug: support debug ll on hisilicon soc

Message ID 1371459376-25438-3-git-send-email-haojian.zhuang@linaro.org
State Superseded
Headers show

Commit Message

Haojian Zhuang June 17, 2013, 8:56 a.m. UTC 
Support UART0 debug ll on hisilicon Hi3620 SoC.

Signed-off-by: Haojian Zhuang <haojian.zhuang@linaro.org>
---
 arch/arm/Kconfig.debug             | 15 +++++++++++++++
 arch/arm/include/debug/hisilicon.S | 30 ++++++++++++++++++++++++++++++
 2 files changed, 45 insertions(+)
 create mode 100644 arch/arm/include/debug/hisilicon.S

Comments

Olof Johansson June 17, 2013, 9:51 p.m. UTC | #1 
On Mon, Jun 17, 2013 at 04:56:14PM +0800, Haojian Zhuang wrote:
> Support UART0 debug ll on hisilicon Hi3620 SoC.
> 
> Signed-off-by: Haojian Zhuang <haojian.zhuang@linaro.org>

Acked-by: Olof Johansson <olof@lixom.net>


-Olof
diff mbox

Patch

diff --git a/arch/arm/Kconfig.debug b/arch/arm/Kconfig.debug
index 1d41908..7396572 100644
--- a/arch/arm/Kconfig.debug
+++ b/arch/arm/Kconfig.debug
@@ -251,6 +251,20 @@  choice
 		  Say Y here if you want kernel low-level debugging support
 		  on i.MX6Q/DL.
 
+	config DEBUG_HI3620_UART
+		bool "Hisilicon HI3620 Debug UART"
+		depends on ARCH_HI3xxx
+		help
+		  Say Y here if you want kernel low-level debugging support
+		  on HI3620 UART.
+
+	config DEBUG_HI3716_UART
+		bool "Hisilicon Hi3716 Debug UART"
+		depends on ARCH_HI3xxx
+		help
+		  Say Y here if you want kernel low-level debugging support
+		  on HI3716 UART.
+
 	config DEBUG_MMP_UART2
 		bool "Kernel low-level debugging message via MMP UART2"
 		depends on ARCH_MMP
@@ -623,6 +637,7 @@  config DEBUG_LL_INCLUDE
 	default "debug/cns3xxx.S" if DEBUG_CNS3XXX
 	default "debug/exynos.S" if DEBUG_EXYNOS_UART
 	default "debug/highbank.S" if DEBUG_HIGHBANK_UART
+	default "debug/hisilicon.S" if DEBUG_HI3620_UART || DEBUG_HI3716_UART
 	default "debug/icedcc.S" if DEBUG_ICEDCC
 	default "debug/imx.S" if DEBUG_IMX1_UART || \
 				 DEBUG_IMX25_UART || \
diff --git a/arch/arm/include/debug/hisilicon.S b/arch/arm/include/debug/hisilicon.S
new file mode 100644
index 0000000..47ad019
--- /dev/null
+++ b/arch/arm/include/debug/hisilicon.S
@@ -0,0 +1,30 @@ 
+/*
+ * Early serial output macro for Hisilicon SoC
+ *
+ * Copyright (C) 2012-2013 Hisilicon Technologies Co., Ltd.
+ * Copyright (C) 2012-2013 Linaro Ltd.
+ *
+ * Author: Haojian Zhuang <haojian.zhuang@linaro.org>
+ *
+ * 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.
+*/
+
+#if defined(CONFIG_DEBUG_HI3620_UART)
+#define HS_UART_PHYS_BASE	0xfcb00000
+#define HS_UART_VIRT_BASE	0xfeb00000
+#elif defined(CONFIG_DEBUG_HI3716_UART)
+#define HS_UART_PHYS_BASE	0xf8b00000
+#define HS_UART_VIRT_BASE	0xfeb00000
+#endif
+
+#if defined(CONFIG_DEBUG_HI3620_UART) || defined(CONFIG_DEBUG_HI3716_UART)
+		.macro	addruart,rp,rv,tmp
+		ldr	\rp, =HS_UART_PHYS_BASE
+		ldr	\rv, =HS_UART_VIRT_BASE
+		.endm
+
+#include <asm/hardware/debug-pl01x.S>
+
+#endif