From: Antony Pavlov <antonynpavlov@gmail.com>
To: barebox@lists.infradead.org
Subject: [RFC 2/3] MIPS: add the initial support for lowlevel init
Date: Sun, 13 May 2012 21:24:43 +0400 [thread overview]
Message-ID: <1336929884-19292-3-git-send-email-antonynpavlov@gmail.com> (raw)
In-Reply-To: <1336929884-19292-1-git-send-email-antonynpavlov@gmail.com>
This commit introduce the initial support for
machine specific lowlevel initialization
(e.g. RAM controller or cache memory).
To return from mach_init_lowlevel() it uses
explicit mach_init_lowlevel_return label.
This saves ra register for using inside mach_init_lowlevel()
Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com>
---
arch/mips/boot/start.S | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/arch/mips/boot/start.S b/arch/mips/boot/start.S
index 6bf5baa..6db104b 100644
--- a/arch/mips/boot/start.S
+++ b/arch/mips/boot/start.S
@@ -74,6 +74,14 @@ __start:
and k0, k1
mtc0 k0, CP0_STATUS
+#ifdef CONFIG_MACH_DO_LOWLEVEL_INIT
+ b mach_init_lowlevel
+ nop
+
+mach_init_lowlevel_return:
+EXPORT(mach_init_lowlevel_return)
+#endif
+
/* copy barebox to link location */
ADR a0, _start, t1 /* a0 <- pc-relative position of _start */
--
1.7.10
_______________________________________________
barebox mailing list
barebox@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/barebox
next prev parent reply other threads:[~2012-05-13 17:24 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-05-13 17:24 [RFC 0/3] " Antony Pavlov
2012-05-13 17:24 ` [RFC 1/3] MIPS: move start.S code to .text_entry section Antony Pavlov
2012-05-13 17:24 ` Antony Pavlov [this message]
2012-05-14 8:55 ` [RFC 2/3] MIPS: add the initial support for lowlevel init Sascha Hauer
2012-05-14 9:13 ` Antony Pavlov
2012-05-13 17:24 ` [RFC 3/3] MIPS: malta: add bogus " Antony Pavlov
2012-05-14 8:18 ` [RFC 0/3] MIPS: add the initial support for " Sascha Hauer
2012-05-14 8:28 ` Antony Pavlov
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=1336929884-19292-3-git-send-email-antonynpavlov@gmail.com \
--to=antonynpavlov@gmail.com \
--cc=barebox@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