Patchwork [U-Boot] Fix jornada memory init]

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Submitter Kristoffer Ericson
Date Nov. 27, 2010, 7:17 p.m.
Message ID <20101127191729.GA1878@boggieman.bredbandsbolaget.se>
Download mbox | patch
Permalink /patch/73294/
State Accepted
Commit f4f88921a5d7044962f74c1097d2a1cf86218936
Headers show

Comments

Kristoffer Ericson - Nov. 27, 2010, 7:17 p.m.
Hi,

Havent recieved any input and its still not applied. So bumping it yet again(#3).
It only affects my specific platform.

Best wishes
Kristoffer

----- Forwarded message from Kristoffer Ericson <kristoffer.ericson@gmail.com> -----

Date: Sat,  6 Nov 2010 14:24:27 +0100
From: Kristoffer Ericson <kristoffer.ericson@gmail.com>
To: wd@denx.de
Cc: u-boot@lists.denx.de, Kristoffer Ericson <kristoffer.ericson@gmail.com>
Subject: [PATCH] Fix jornada memory init
X-Mailer: git-send-email 1.7.3.2

* Fix memory initialization. This fixes the problem
  with kernel oopses during heavy load.

* Cleanup pinsetup, which for reference is among
  other things needed for proper flash erasing.

Signed-off-by: Kristoffer Ericson <kristoffer.ericson@gmail.com>
---
 board/jornada/setup.S |   24 ++++++++++++------------
 1 files changed, 12 insertions(+), 12 deletions(-)

Patch

diff --git a/board/jornada/setup.S b/board/jornada/setup.S
index 885e02f..cdf5f54 100644
--- a/board/jornada/setup.S
+++ b/board/jornada/setup.S
@@ -112,12 +112,13 @@  gafr_set:	.long	0x08600000
 .globl lowlevel_init
 lowlevel_init:
 
-	/* set output and direction of pins */
-	ldr r0, PPC_BASE
-	ldr r1, pin_set_out
-	str r1, [r0, #PPSR]
-	ldr r1, pin_set_dir
-	str r1, [r0, #PPDR]
+
+	/* this is required for flashing */
+	ldr	r0, PPC_BASE
+	ldr	r1, pin_set_out
+	str	r1, [r0, #PPSR]
+	ldr	r1, pin_set_dir
+	str	r1, [r0, #PPDR]
 
 	/* Setting up the memory and stuff */
 	/***********************************/
@@ -190,6 +191,11 @@  lowlevel_init:
 	ldr	r3, [r2]
 .endr
 
+	ldr	r2, [r0, #MDCNFG]
+	orr	r2, r2, #0x00000003
+	orr	r2, r2, #0x00030000
+	str	r2, [r0, #MDCNFG]
+
 	ldr	r1, msc0
 	str	r1, [r0, #MSC0]
 	ldr	r1, msc1
@@ -198,13 +204,7 @@  lowlevel_init:
 	str	r1, [r0, #MSC2]
 	ldr	r1, smcnfg
 	str	r1, [r0, #SMCNFG]
-	ldr	r1, mdcnfg
-	str	r1, [r0, #MDCNFG]
 	ldr	r1, mecr
 	str	r1, [r0, #MECR]
 
-	/* enable SDRAM */
-	orr	r1, r1, #0x00000001
-	str	r1, [r0, #MDCNFG]
-
 	mov	pc, lr