mail archive of the barebox mailing list
 help / color / mirror / Atom feed
From: Sascha Hauer <s.hauer@pengutronix.de>
To: barebox@lists.infradead.org
Cc: Marek Vasut <marex@denx.de>
Subject: [PATCH 08/13] ARM: Add get_sp() and get_lr() functions
Date: Tue,  9 Dec 2014 20:03:31 +0100	[thread overview]
Message-ID: <1418151816-24593-9-git-send-email-s.hauer@pengutronix.de> (raw)
In-Reply-To: <1418151816-24593-1-git-send-email-s.hauer@pengutronix.de>

In case it's needed for some early code.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
---
 arch/arm/include/asm/common.h | 26 ++++++++++++++++++++++++++
 1 file changed, 26 insertions(+)

diff --git a/arch/arm/include/asm/common.h b/arch/arm/include/asm/common.h
index 133bb8e..9ff3b19 100644
--- a/arch/arm/include/asm/common.h
+++ b/arch/arm/include/asm/common.h
@@ -16,6 +16,32 @@ static inline unsigned long get_pc(void)
 	return pc;
 }
 
+static inline unsigned long get_lr(void)
+{
+	unsigned long lr;
+
+	__asm__ __volatile__(
+                "mov    %0, lr\n"
+                : "=r" (lr)
+                :
+                : "memory");
+
+	return lr;
+}
+
+static inline unsigned long get_sp(void)
+{
+	unsigned long sp;
+
+	__asm__ __volatile__(
+                "mov    %0, sp\n"
+                : "=r" (sp)
+                :
+                : "memory");
+
+	return sp;
+}
+
 static inline void arm_setup_stack(unsigned long top)
 {
 	__asm__ __volatile__("mov sp, %0" : : "r"(top));
-- 
2.1.3


_______________________________________________
barebox mailing list
barebox@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/barebox

  parent reply	other threads:[~2014-12-09 19:04 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-12-09 19:03 MXS initialization support Sascha Hauer
2014-12-09 19:03 ` [PATCH 01/13] scripts: add mxsimage tool Sascha Hauer
2014-12-09 19:03 ` [PATCH 02/13] scripts: Add mxsboot tool Sascha Hauer
2014-12-10  7:01   ` Sascha Hauer
2014-12-09 19:03 ` [PATCH 03/13] scripts: Add mxs-usb-loader tool Sascha Hauer
2014-12-09 19:03 ` [PATCH 04/13] drivers: remove unnecessary mach/imx-regs.h include Sascha Hauer
2014-12-09 19:03 ` [PATCH 05/13] ARM: MXS: " Sascha Hauer
2014-12-09 19:03 ` [PATCH 06/13] ARM: Add U-Boot specific io functions Sascha Hauer
2014-12-09 19:03 ` [PATCH 07/13] ARM: mxs: Add lowlevel setup from U-Boot Sascha Hauer
2014-12-09 19:03 ` Sascha Hauer [this message]
2014-12-09 19:03 ` [PATCH 09/13] ARM: MXS: Add more base address defines Sascha Hauer
2014-12-09 19:03 ` [PATCH 10/13] ARM: MXS: Enable iomux support for pbl Sascha Hauer
2014-12-09 19:03 ` [PATCH 11/13] ARM: MXS: Add multiimage support Sascha Hauer
2014-12-09 19:03 ` [PATCH 12/13] ARM: MXS: Update Karo TX28 board support Sascha Hauer
2014-12-09 19:03 ` [PATCH 13/13] Documentation: Add documentation for booting Freescale MXS SoCs Sascha Hauer
2014-12-10 12:28 ` MXS initialization support Marek Vasut

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=1418151816-24593-9-git-send-email-s.hauer@pengutronix.de \
    --to=s.hauer@pengutronix.de \
    --cc=barebox@lists.infradead.org \
    --cc=marex@denx.de \
    /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