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From: Sascha Hauer <s.hauer@pengutronix.de>
To: barebox@lists.infradead.org
Subject: [PATCH 02/14] ppc: add a get_pc() function
Date: Tue, 27 Sep 2011 10:28:17 +0200	[thread overview]
Message-ID: <1317112109-23311-3-git-send-email-s.hauer@pengutronix.de> (raw)
In-Reply-To: <1317112109-23311-1-git-send-email-s.hauer@pengutronix.de>

Useful to determine whether sdram has to be setup or not.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
---
 arch/ppc/include/asm/common.h |   17 +++++++++++++++++
 1 files changed, 17 insertions(+), 0 deletions(-)

diff --git a/arch/ppc/include/asm/common.h b/arch/ppc/include/asm/common.h
index 96de5c6..26876c7 100644
--- a/arch/ppc/include/asm/common.h
+++ b/arch/ppc/include/asm/common.h
@@ -21,4 +21,21 @@ void	trap_init     (ulong);
 int cpu_init_board_data(bd_t *bd);
 int init_board_data(bd_t *bd);
 
+static inline unsigned long get_pc(void)
+{
+	unsigned long pc;
+
+	__asm__ __volatile__(
+		"	mflr    0\n"
+		"	bl	1f\n"
+		"1:\n"
+		"	mflr    %0\n"
+		"	mtlr    0\n"
+		: "=r" (pc)
+                :
+                : "0", "memory");
+
+	return pc;
+}
+
 #endif /* __ASM_COMMON_H */
-- 
1.7.6.3


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  parent reply	other threads:[~2011-09-27  8:28 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-09-27  8:28 more ppc and pcm030 cleanup Sascha Hauer
2011-09-27  8:28 ` [PATCH 01/14] ppc: remove mgt5100 support from code Sascha Hauer
2011-09-27  8:28 ` Sascha Hauer [this message]
2011-09-27  8:28 ` [PATCH 03/14] remove EARLY_INIT and EARLY_CONSOLE support Sascha Hauer
2011-09-27  8:28 ` [PATCH 04/14] ppc mpc5200: add function to determine configured sdram size Sascha Hauer
2011-09-27  8:28 ` [PATCH 05/14] ppc mpc5200: add function to configure a chipselect Sascha Hauer
2011-09-27  8:28 ` [PATCH 06/14] ppc mpc5200: add function to setup bus clocks Sascha Hauer
2011-09-27  8:28 ` [PATCH 07/14] ppc mpc5200b: cleanup lowlevel startup Sascha Hauer
2011-09-27  8:28 ` [PATCH 08/14] pcm030: use new functionality Sascha Hauer
2011-09-27  8:28 ` [PATCH 09/14] ppc: hardcode sdram base to 0x0 Sascha Hauer
2011-09-27  8:28 ` [PATCH 10/14] mpc5200: hardcode MBAR to 0xf0000000 Sascha Hauer
2011-09-27  8:28 ` [PATCH 11/14] mpc5200: hardcode internal sram for initram Sascha Hauer
2011-09-27  8:28 ` [PATCH 12/14] pcm030: fix /dev/self0 and /dev/env0 Sascha Hauer
2011-09-27  8:28 ` [PATCH 13/14] ppc mpc5200: remove bus clock switching from generic code Sascha Hauer
2011-09-27  8:28 ` [PATCH 14/14] pcm030: cleanup config.h Sascha Hauer

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