public inbox for u-boot@lists.denx.de
 help / color / mirror / Atom feed
From: Fabio Estevam <festevam@gmail.com>
To: u-boot@lists.denx.de
Subject: [U-Boot] [PATCH] mxs: spl_mem_init: Align DDR2 init with FSL bootlets source
Date: Wed, 27 Feb 2013 18:29:03 -0300	[thread overview]
Message-ID: <1362000543-2270-1-git-send-email-festevam@gmail.com> (raw)

From: Fabio Estevam <fabio.estevam@freescale.com>

Currently the following kernel hang happens when loading a 2.6.35 kernel from
Freeescale on a mx28evk board:

RPC: Registered tcp transport module.
RPC: Registered tcp NFSv4.1 backchannel transport module.
Bus freq driver module loaded
IMX usb wakeup probe
usb h1 wakeup device is registered
mxs_cpu_init: cpufreq init finished
...

Loading the same kernel using the bootlets from the imx-bootlets-src-10.12.01 
package, the hang does not occur.

Comparing the DDR2 initialization from the bootlets code against the U-boot 
one, we can notice some mismatches, and after applying the same initialization 
into U-boot the 2.6.35 kernel can boot normally.

Also tested with 'mtest' command, which runs succesfully.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
---
 arch/arm/cpu/arm926ejs/mxs/spl_mem_init.c |   87 ++++++++++++++---------------
 1 file changed, 43 insertions(+), 44 deletions(-)

diff --git a/arch/arm/cpu/arm926ejs/mxs/spl_mem_init.c b/arch/arm/cpu/arm926ejs/mxs/spl_mem_init.c
index f8392f6..d80746f 100644
--- a/arch/arm/cpu/arm926ejs/mxs/spl_mem_init.c
+++ b/arch/arm/cpu/arm926ejs/mxs/spl_mem_init.c
@@ -36,55 +36,54 @@ static uint32_t dram_vals[] = {
  * i.MX28 DDR2 at 200MHz
  */
 #if defined(CONFIG_MX28)
-	0x00000000, 0x00000000, 0x00000000, 0x00000000,
-	0x00000000, 0x00000000, 0x00000000, 0x00000000,
-	0x00000000, 0x00000000, 0x00000000, 0x00000000,
-	0x00000000, 0x00000000, 0x00000000, 0x00000000,
-	0x00000000, 0x00000100, 0x00000000, 0x00000000,
-	0x00000000, 0x00000000, 0x00000000, 0x00000000,
-	0x00000000, 0x00000000, 0x00010101, 0x01010101,
-	0x000f0f01, 0x0f02020a, 0x00000000, 0x00010101,
-	0x00000100, 0x00000100, 0x00000000, 0x00000002,
-	0x01010000, 0x05060302, 0x06005003, 0x0a0000c8,
-	0x02009c40, 0x0000030c, 0x0036a609, 0x031a0612,
-	0x02030202, 0x00c8001c, 0x00000000, 0x00000000,
-	0x00012100, 0xffff0303, 0x00012100, 0xffff0303,
+	0x00000000, 0x00000000,	0x00000000, 0x00000000,
+	0x00000000, 0x00000000,	0x00000000, 0x00000000,
+	0x00000000, 0x00000000,	0x00000000, 0x00000000,
+	0x00000000, 0x00000000,	0x00000000, 0x00000000,
+	0x00000000, 0x00000100,	0x00000000, 0x00000000,
+	0x00000000, 0x00000000,	0x00000000, 0x00000000,
+	0x00000000, 0x00000000,	0x00010101, 0x01010101,
+	0x000f0f01, 0x0f02020a,	0x00000000, 0x00010101,
+	0x00000100, 0x00000100,	0x00000000, 0x00000002,
+	0x01010000, 0x07080403,	0x06005003, 0x0a0000c8,
+	0x02009c40, 0x0002030c,	0x0036a609, 0x031a0612,
+	0x02030202, 0x00c8001c,	0x00000000, 0x00000000,
+	0x00012100, 0xffff0303,	0x00012100, 0xffff0303,
 	0x00012100, 0xffff0303, 0x00012100, 0xffff0303,
-	0x00000003, 0x00000000, 0x00000000, 0x00000000,
-	0x00000000, 0x00000000, 0x00000000, 0x00000000,
-	0x00000000, 0x00000000, 0x00000612, 0x01000F02,
-	0x06120612, 0x00000200, 0x00020007, 0xf5014b27,
-	0xf5014b27, 0xf5014b27, 0xf5014b27, 0x07000300,
-	0x07000300, 0x07000300, 0x07000300, 0x00000006,
-	0x00000000, 0x00000000, 0x01000000, 0x01020408,
-	0x08040201, 0x000f1133, 0x00000000, 0x00001f04,
-	0x00001f04, 0x00001f04, 0x00001f04, 0x00001f04,
+	0x00000003, 0x00000000,	0x00000000, 0x00000000,
+	0x00000000, 0x00000000,	0x00000000, 0x00000000,
+	0x00000000, 0x00000000,	0x00000612, 0x01000f02,
+	0x06120612, 0x00000200,	0x00020007, 0xf4004a27,
+	0xf4004a27, 0xf4004a27,	0xf4004a27, 0x07000300,
+	0x07000300, 0x07400300,	0x07400300, 0x00000005,
+	0x00000000, 0x00000000,	0x01000000, 0x01020408,
+	0x08040201, 0x000f1133,	0x00000000, 0x00001f04,
+	0x00001f04, 0x00001f04,	0x00001f04, 0x00001f04,
 	0x00001f04, 0x00001f04, 0x00001f04, 0x00000000,
+	0x00000000, 0x00000000,	0x00000000, 0x00000000,
+	0x00000000, 0x00000000,	0x00000000, 0x00000000,
+	0x00000000, 0x00000000,	0x00000000, 0x00000000,
+	0x00000000, 0x00000000,	0x00000000, 0x00000000,
+	0x00000000, 0x00000000,	0x00000000, 0x00000000,
+	0x00000000, 0x00000000,	0x00000000, 0x00000000,
 	0x00000000, 0x00000000, 0x00000000, 0x00000000,
-	0x00000000, 0x00000000, 0x00000000, 0x00000000,
-	0x00000000, 0x00000000, 0x00000000, 0x00000000,
-	0x00000000, 0x00000000, 0x00000000, 0x00000000,
-	0x00000000, 0x00000000, 0x00000000, 0x00000000,
-	0x00000000, 0x00000000, 0x00000000, 0x00000000,
-	0x00000000, 0x00000000, 0x00000000, 0x00000000,
-	0x00000000, 0x00000000, 0x00000000, 0x00000000,
-	0x00000000, 0x00000000, 0x00000000, 0x00000000,
-	0x00000000, 0x00000000, 0x00000000, 0x00000000,
-	0x00000000, 0x00000000, 0x00000000, 0x00000000,
-	0x00000000, 0x00000000, 0x00000000, 0x00000000,
-	0x00000000, 0x00000000, 0x00000000, 0x00000000,
-	0x00000000, 0x00000000, 0x00000000, 0x00000000,
-	0x00000000, 0x00000000, 0x00000000, 0x00000000,
-	0x00000000, 0x00000000, 0x00000000, 0x00000000,
-	0x00000000, 0x00000000, 0x00010000, 0x00020304,
-	0x00000004, 0x00000000, 0x00000000, 0x00000000,
-	0x00000000, 0x00000000, 0x00000000, 0x01010000,
+	0x00000000, 0x00000000,	0x00000000, 0x00000000,
+	0x00000000, 0x00000000,	0x00000000, 0x00000000,
+	0x00000000, 0x00000000,	0x00000000, 0x00000000,
+	0x00000000, 0x00000000,	0x00000000, 0x00000000,
+	0x00000000, 0x00000000,	0x00000000, 0x00000000,
+	0x00000000, 0x00000000,	0x00000000, 0x00000000,
+	0x00000000, 0x00000000,	0x00000000, 0x00000000,
+	0x00000000, 0x00000000,	0x00000000, 0x00000000,
+	0x00000000, 0x00000000,	0x00000000, 0x00000000,
+	0x00000000, 0x00000000, 0x00010000, 0x00030404,
+	0x00000003, 0x00000000,	0x00000000, 0x00000000,
+	0x00000000, 0x00000000,	0x00000000, 0x01010000,
 	0x01000000, 0x03030000, 0x00010303, 0x01020202,
-	0x00000000, 0x02040303, 0x21002103, 0x00061200,
-	0x06120612, 0x04320432, 0x04320432, 0x00040004,
+	0x00000000, 0x02040303,	0x21002103, 0x00061200,
+	0x06120612, 0x04420442,	0x04420442, 0x00040004,
 	0x00040004, 0x00000000, 0x00000000, 0x00000000,
-	0x00000000, 0x00010001
-
+	0x00000000, 0xffffffff
 /*
  * i.MX23 DDR at 133MHz
  */
-- 
1.7.9.5

             reply	other threads:[~2013-02-27 21:29 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-02-27 21:29 Fabio Estevam [this message]
2013-02-28 18:55 ` [U-Boot] [PATCH] mxs: spl_mem_init: Align DDR2 init with FSL bootlets source 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=1362000543-2270-1-git-send-email-festevam@gmail.com \
    --to=festevam@gmail.com \
    --cc=u-boot@lists.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