From: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
To: barebox@lists.infradead.org
Subject: [PATCH v2] at91sam9_ddrsdr: fix register on mdr read and sdram detection for ddr size
Date: Sun, 3 Feb 2013 14:49:58 +0100 [thread overview]
Message-ID: <1359899398-3867-1-git-send-email-plagnioj@jcrosoft.com> (raw)
In-Reply-To: <1359895702-30597-1-git-send-email-plagnioj@jcrosoft.com>
it's currently working by luck
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
---
v2:
2 bug together make it work
Best Regards,
J.
arch/arm/mach-at91/include/mach/at91sam9_ddrsdr.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/arm/mach-at91/include/mach/at91sam9_ddrsdr.h b/arch/arm/mach-at91/include/mach/at91sam9_ddrsdr.h
index 2614f97..88796a6 100644
--- a/arch/arm/mach-at91/include/mach/at91sam9_ddrsdr.h
+++ b/arch/arm/mach-at91/include/mach/at91sam9_ddrsdr.h
@@ -146,7 +146,7 @@ static inline u32 at91_get_ddram_size(void * __iomem base, bool is_nb)
bool is_sdram;
cr = __raw_readl(base + AT91_DDRSDRC_CR);
- mdr = __raw_readl(base + AT91_DDRSDRC_CR);
+ mdr = __raw_readl(base + AT91_DDRSDRC_MDR);
is_sdram = (mdr & AT91_DDRSDRC_MD) <= AT91_DDRSDRC_MD_LOW_POWER_SDR;
@@ -158,7 +158,7 @@ static inline u32 at91_get_ddram_size(void * __iomem base, bool is_nb)
size = 1;
/* COL */
size += (cr & AT91_DDRSDRC_NC) + 8;
- if (is_sdram)
+ if (!is_sdram)
size ++;
/* ROW */
size += ((cr & AT91_DDRSDRC_NR) >> 2) + 11;
--
1.7.10.4
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next prev parent reply other threads:[~2013-02-03 13:51 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-02-03 12:48 [PATCH 1/1] at91sam9_ddrsdr: fix register on mdr read " Jean-Christophe PLAGNIOL-VILLARD
2013-02-03 13:49 ` Jean-Christophe PLAGNIOL-VILLARD [this message]
2013-02-04 8:45 ` [PATCH v2] at91sam9_ddrsdr: fix register on mdr read and sdram detection " Sascha Hauer
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