From: Oleksij Rempel <linux@rempel-privat.de>
To: barebox@lists.infradead.org
Subject: [PATCH 8/8] netgear-wg102: pbl, add extra check for mem config
Date: Wed, 19 Jun 2013 11:11:33 +0200 [thread overview]
Message-ID: <1371633093-23179-9-git-send-email-linux@rempel-privat.de> (raw)
In-Reply-To: <1371633093-23179-1-git-send-email-linux@rempel-privat.de>
if E0 flag is not set, sdram is defenetly not configured.
Signed-off-by: Oleksij Rempel <linux@rempel-privat.de>
---
arch/mips/boards/netgear-wg102/include/board/board_pbl_start.h | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/arch/mips/boards/netgear-wg102/include/board/board_pbl_start.h b/arch/mips/boards/netgear-wg102/include/board/board_pbl_start.h
index 4deae06..d74d2c2 100644
--- a/arch/mips/boards/netgear-wg102/include/board/board_pbl_start.h
+++ b/arch/mips/boards/netgear-wg102/include/board/board_pbl_start.h
@@ -18,6 +18,7 @@
#include <asm/pbl_macros.h>
#include <mach/pbl_macros.h>
+#include <mach/ar2312_regs.h>
#include <mach/debug_ll.h>
@@ -40,10 +41,17 @@
/* check if SDRAM is already configured,
* if yes, we are probably starting
* as second stage loader and can skip configuration */
+ la t0, KSEG1 | AR2312_MEM_CFG1
+ lw t1, 0(t0)
+ and t0, t1, MEM_CFG1_E0
+ beq zero, t0, 1f
+ nop
+
pbl_probe_mem t0, t1, KSEG1
beq t0, t1, sdram_configured
nop
+1:
/* start SDRAM configuration */
pbl_ar2312_x16_sdram
--
1.8.1.2
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next prev parent reply other threads:[~2013-06-19 9:12 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-06-19 9:11 [PATCH 0/8] low level initialisation for ar2313 Oleksij Rempel
2013-06-19 9:11 ` [PATCH 1/8] MIPS: pbl: add mips_barebox_10h asm macro Oleksij Rempel
2013-06-19 9:11 ` [PATCH 2/8] MIPS: pbl: add pbl_sleep macro Oleksij Rempel
2013-06-21 6:44 ` [PATCH 2/8 v2] " Oleksij Rempel
2013-06-19 9:11 ` [PATCH 3/8] MIPS: pbl: add pbl_probe_mem macro Oleksij Rempel
2013-06-19 9:11 ` [PATCH 4/8] MIPS: mach-ar231x: add lowlevel init pbl macros Oleksij Rempel
2013-06-19 9:11 ` [PATCH 5/8] MIPS: netgear-wg102: add pbl support Oleksij Rempel
2013-06-19 9:11 ` [PATCH 6/8] MIPS: netgear-wg102: add debug_ll Oleksij Rempel
2013-06-19 9:11 ` [PATCH 7/8] MIPS: mach-ar231x: enable DEBUG_LL Oleksij Rempel
2013-06-19 9:11 ` Oleksij Rempel [this message]
2013-06-21 5:30 ` [PATCH 0/8] low level initialisation for ar2313 Sascha Hauer
2013-06-21 6:25 ` antonynpavlov
2013-06-21 7:23 ` Sascha Hauer
2013-06-21 7:34 ` antonynpavlov
2013-06-21 15:48 ` Sascha Hauer
2013-06-21 16:37 ` antonynpavlov
2013-06-23 18:42 ` Sascha Hauer
2013-06-23 19:16 ` antonynpavlov
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