From: haojian.zhuang@gmail.com (Haojian Zhuang)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH] ARM: mmp: implement DEBUG_LL port choice
Date: Fri, 10 Aug 2012 23:52:07 +0800 [thread overview]
Message-ID: <1344613927-8238-1-git-send-email-haojian.zhuang@gmail.com> (raw)
DEBUG_LL port must be choiced in arch-mmp. DEBUG_LL port should be
UART2 in TTC DKB. And it should be UART3 in brownstone.
Signed-off-by: Haojian Zhuang <haojian.zhuang@gmail.com>
---
arch/arm/Kconfig.debug | 14 ++++++++++++++
arch/arm/mach-mmp/include/mach/debug-macro.S | 12 ++++++++++--
2 files changed, 24 insertions(+), 2 deletions(-)
diff --git a/arch/arm/Kconfig.debug b/arch/arm/Kconfig.debug
index f15f82b..0919191 100644
--- a/arch/arm/Kconfig.debug
+++ b/arch/arm/Kconfig.debug
@@ -224,6 +224,20 @@ choice
Say Y here if you want kernel low-level debugging support
on i.MX6Q UART4.
+ config DEBUG_MMP_UART2
+ bool "Kernel low-level debugging message via MMP UART2"
+ depends on ARCH_MMP
+ help
+ Say Y here if you want kernel low-level debugging support
+ on MMP UART2.
+
+ config DEBUG_MMP_UART3
+ bool "Kernel low-level debugging message via MMP UART3"
+ depends on ARCH_MMP
+ help
+ Say Y here if you want kernel low-level debugging support
+ on MMP UART3.
+
config DEBUG_MSM_UART1
bool "Kernel low-level debugging messages via MSM UART1"
depends on ARCH_MSM7X00A || ARCH_MSM7X30 || ARCH_QSD8X50
diff --git a/arch/arm/mach-mmp/include/mach/debug-macro.S b/arch/arm/mach-mmp/include/mach/debug-macro.S
index b6f14d2..5c3cc29 100644
--- a/arch/arm/mach-mmp/include/mach/debug-macro.S
+++ b/arch/arm/mach-mmp/include/mach/debug-macro.S
@@ -9,13 +9,21 @@
* published by the Free Software Foundation.
*/
+#if defined(CONFIG_DEBUG_MMP_UART2)
+#define MMP_UART_OFFSET 0x00017000
+#elif defined(CONFIG_DEBUG_MMP_UART3)
+#define MMP_UART_OFFSET 0x00018000
+#else
+#error "Select uart for DEBUG_LL"
+#endif
+
#include <mach/addr-map.h>
.macro addruart, rp, rv, tmp
ldr \rp, =APB_PHYS_BASE @ physical
ldr \rv, =APB_VIRT_BASE @ virtual
- orr \rp, \rp, #0x00017000
- orr \rv, \rv, #0x00017000
+ orr \rp, \rp, #MMP_UART_OFFSET
+ orr \rv, \rv, #MMP_UART_OFFSET
.endm
#define UART_SHIFT 2
--
1.7.9.5
reply other threads:[~2012-08-10 15:52 UTC|newest]
Thread overview: [no followups] expand[flat|nested] mbox.gz Atom feed
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1344613927-8238-1-git-send-email-haojian.zhuang@gmail.com \
--to=haojian.zhuang@gmail.com \
--cc=linux-arm-kernel@lists.infradead.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).