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From: Matteo Fortini <matteo.fortini@gmail.com>
To: barebox@lists.infradead.org
Subject: [PATCH] SAMA5D3X FIX AT91_SMC_CS offset stride
Date: Wed, 28 May 2014 19:16:43 +0200	[thread overview]
Message-ID: <CAC_9p+84LdjnZ=7zRtHYchpCDigYWKhy5H7Ed+gr0SnvPUDH+g@mail.gmail.com> (raw)

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As stated in section 29.19.32 of SAMA5D3 Series datasheet, to move
from CS(n) to CS(n+1) the stride is 0x14 and not 0x10.

For this reason, I was unable to use the NAND memory on my board (CS
configuration was not applied and the timings were wrong).

This patch fixes the problem.

Matteo

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From 6c26d7c00005cbf4470017a6d5361a346981bbe5 Mon Sep 17 00:00:00 2001
From: Matteo Fortini <matteo.fortini@gmail.com>
Date: Wed, 28 May 2014 19:00:42 +0200
Subject: [PATCH] sama5d3x: fix AT91_SMC_CS offset stride

---
 arch/arm/mach-at91/sam9_smc.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/arch/arm/mach-at91/sam9_smc.c b/arch/arm/mach-at91/sam9_smc.c
index a137da4..65c4558 100644
--- a/arch/arm/mach-at91/sam9_smc.c
+++ b/arch/arm/mach-at91/sam9_smc.c
@@ -16,7 +16,11 @@
 
 #include <mach/at91sam9_smc.h>
 
+#ifdef CONFIG_ARCH_SAMA5D3
+#define AT91_SMC_CS(id, n)	(smc_base_addr[id] + ((n) * 0x14))
+#else
 #define AT91_SMC_CS(id, n)	(smc_base_addr[id] + ((n) * 0x10))
+#endif
 
 static void __iomem *smc_base_addr[2];
 
-- 
2.0.0.rc2


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             reply	other threads:[~2014-05-28 17:17 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-05-28 17:16 Matteo Fortini [this message]
2014-05-29  1:31 ` Bo Shen
2014-05-29  9:55 [PATCH] sama5d3x: fix " Matteo Fortini
2014-05-29 12:11 ` Jean-Christophe PLAGNIOL-VILLARD
2014-05-30  1:43   ` Bo Shen

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