* [U-Boot-Users] [PATCH] [AT91SAM9] Fix NAND FLASH timings
@ 2008-05-27 11:17 Jean-Christophe PLAGNIOL-VILLARD
2008-05-27 11:40 ` Stelian Pop
0 siblings, 1 reply; 2+ messages in thread
From: Jean-Christophe PLAGNIOL-VILLARD @ 2008-05-27 11:17 UTC (permalink / raw)
To: u-boot
----- Forwarded message from Patrice Vilchez <patrice.vilchez@atmel.com> -----
Date: Tue, 27 May 2008 11:15:29 +0200
From: Patrice Vilchez <patrice.vilchez@atmel.com>
To: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Subject: [PATCH] [AT91SAM9] Fix NAND FLASH timings
User-Agent: Thunderbird 2.0.0.14 (Windows/20080421)
Message-ID: <483BD131.5040007@atmel.com>
CC: Stelian Pop <stelian@popies.net>,
ATMEL - Nicolas Ferre <nicolas.ferre@atmel.com>
Fix NAND FLASH timings for at91sam9x evaluation kits.
New timings are based on application note
"NAND Flash Support on AT91SAM9 Microcontrollers" available at
http://atmel.com/dyn/resources/prod_documents/doc6255.pdf
Signed-off-by: Patrice Vilchez <patice.vilchez@atmel.com>
---
at91sam9260ek/at91sam9260ek.c | 4 ++--
at91sam9261ek/at91sam9261ek.c | 12 ++++++------
at91sam9263ek/at91sam9263ek.c | 4 ++--
at91sam9rlek/at91sam9rlek.c | 12 ++++++------
diff --git a/board/atmel/at91sam9260ek/at91sam9260ek.c b/board/atmel/at91sam9260ek/at91sam9260ek.c
index ef4d486..ea5abe1 100644
--- a/board/atmel/at91sam9260ek/at91sam9260ek.c
+++ b/board/atmel/at91sam9260ek/at91sam9260ek.c
@@ -80,8 +80,8 @@ static void at91sam9260ek_nand_hw_init(void)
/* Configure SMC CS3 for NAND/SmartMedia */
at91_sys_write(AT91_SMC_SETUP(3),
- AT91_SMC_NWESETUP_(0) | AT91_SMC_NCS_WRSETUP_(0) |
- AT91_SMC_NRDSETUP_(0) | AT91_SMC_NCS_RDSETUP_(0));
+ AT91_SMC_NWESETUP_(1) | AT91_SMC_NCS_WRSETUP_(0) |
+ AT91_SMC_NRDSETUP_(1) | AT91_SMC_NCS_RDSETUP_(0));
at91_sys_write(AT91_SMC_PULSE(3),
AT91_SMC_NWEPULSE_(3) | AT91_SMC_NCS_WRPULSE_(3) |
AT91_SMC_NRDPULSE_(3) | AT91_SMC_NCS_RDPULSE_(3));
diff --git a/board/atmel/at91sam9261ek/at91sam9261ek.c b/board/atmel/at91sam9261ek/at91sam9261ek.c
index 3de234c..647aab5 100644
--- a/board/atmel/at91sam9261ek/at91sam9261ek.c
+++ b/board/atmel/at91sam9261ek/at91sam9261ek.c
@@ -82,13 +82,13 @@ static void at91sam9261ek_nand_hw_init(void)
/* Configure SMC CS3 for NAND/SmartMedia */
at91_sys_write(AT91_SMC_SETUP(3),
- AT91_SMC_NWESETUP_(0) | AT91_SMC_NCS_WRSETUP_(0) |
- AT91_SMC_NRDSETUP_(0) | AT91_SMC_NCS_RDSETUP_(0));
+ AT91_SMC_NWESETUP_(1) | AT91_SMC_NCS_WRSETUP_(0) |
+ AT91_SMC_NRDSETUP_(1) | AT91_SMC_NCS_RDSETUP_(0));
at91_sys_write(AT91_SMC_PULSE(3),
- AT91_SMC_NWEPULSE_(2) | AT91_SMC_NCS_WRPULSE_(5) |
- AT91_SMC_NRDPULSE_(2) | AT91_SMC_NCS_RDPULSE_(5));
+ AT91_SMC_NWEPULSE_(3) | AT91_SMC_NCS_WRPULSE_(3) |
+ AT91_SMC_NRDPULSE_(3) | AT91_SMC_NCS_RDPULSE_(3));
at91_sys_write(AT91_SMC_CYCLE(3),
- AT91_SMC_NWECYCLE_(7) | AT91_SMC_NRDCYCLE_(7));
+ AT91_SMC_NWECYCLE_(5) | AT91_SMC_NRDCYCLE_(5));
at91_sys_write(AT91_SMC_MODE(3),
AT91_SMC_READMODE | AT91_SMC_WRITEMODE |
AT91_SMC_EXNWMODE_DISABLE |
@@ -97,7 +97,7 @@ static void at91sam9261ek_nand_hw_init(void)
#else /* CFG_NAND_DBW_8 */
AT91_SMC_DBW_8 |
#endif
- AT91_SMC_TDF_(1));
+ AT91_SMC_TDF_(2));
at91_sys_write(AT91_PMC_PCER, 1 << AT91SAM9261_ID_PIOC);
diff --git a/board/atmel/at91sam9263ek/at91sam9263ek.c b/board/atmel/at91sam9263ek/at91sam9263ek.c
index ba7fc71..e329e10 100644
--- a/board/atmel/at91sam9263ek/at91sam9263ek.c
+++ b/board/atmel/at91sam9263ek/at91sam9263ek.c
@@ -83,8 +83,8 @@ static void at91sam9263ek_nand_hw_init(void)
/* Configure SMC CS3 for NAND/SmartMedia */
at91_sys_write(AT91_SMC_SETUP(3),
- AT91_SMC_NWESETUP_(0) | AT91_SMC_NCS_WRSETUP_(0) |
- AT91_SMC_NRDSETUP_(0) | AT91_SMC_NCS_RDSETUP_(0));
+ AT91_SMC_NWESETUP_(1) | AT91_SMC_NCS_WRSETUP_(0) |
+ AT91_SMC_NRDSETUP_(1) | AT91_SMC_NCS_RDSETUP_(0));
at91_sys_write(AT91_SMC_PULSE(3),
AT91_SMC_NWEPULSE_(3) | AT91_SMC_NCS_WRPULSE_(3) |
AT91_SMC_NRDPULSE_(3) | AT91_SMC_NCS_RDPULSE_(3));
diff --git a/board/atmel/at91sam9rlek/at91sam9rlek.c b/board/atmel/at91sam9rlek/at91sam9rlek.c
index 10423d2..509e7c3 100644
--- a/board/atmel/at91sam9rlek/at91sam9rlek.c
+++ b/board/atmel/at91sam9rlek/at91sam9rlek.c
@@ -82,13 +82,13 @@ static void at91sam9rlek_nand_hw_init(void)
/* Configure SMC CS3 for NAND/SmartMedia */
at91_sys_write(AT91_SMC_SETUP(3),
- AT91_SMC_NWESETUP_(0) | AT91_SMC_NCS_WRSETUP_(0) |
- AT91_SMC_NRDSETUP_(0) | AT91_SMC_NCS_RDSETUP_(0));
+ AT91_SMC_NWESETUP_(1) | AT91_SMC_NCS_WRSETUP_(0) |
+ AT91_SMC_NRDSETUP_(1) | AT91_SMC_NCS_RDSETUP_(0));
at91_sys_write(AT91_SMC_PULSE(3),
- AT91_SMC_NWEPULSE_(2) | AT91_SMC_NCS_WRPULSE_(5) |
- AT91_SMC_NRDPULSE_(2) | AT91_SMC_NCS_RDPULSE_(5));
+ AT91_SMC_NWEPULSE_(3) | AT91_SMC_NCS_WRPULSE_(3) |
+ AT91_SMC_NRDPULSE_(3) | AT91_SMC_NCS_RDPULSE_(3));
at91_sys_write(AT91_SMC_CYCLE(3),
- AT91_SMC_NWECYCLE_(7) | AT91_SMC_NRDCYCLE_(7));
+ AT91_SMC_NWECYCLE_(5) | AT91_SMC_NRDCYCLE_(5));
at91_sys_write(AT91_SMC_MODE(3),
AT91_SMC_READMODE | AT91_SMC_WRITEMODE |
AT91_SMC_EXNWMODE_DISABLE |
@@ -97,7 +97,7 @@ static void at91sam9rlek_nand_hw_init(void)
#else /* CFG_NAND_DBW_8 */
AT91_SMC_DBW_8 |
#endif
- AT91_SMC_TDF_(1));
+ AT91_SMC_TDF_(2));
at91_sys_write(AT91_PMC_PCER, 1 << AT91SAM9RL_ID_PIOD);
----- End forwarded message -----
^ permalink raw reply related [flat|nested] 2+ messages in thread
* [U-Boot-Users] [PATCH] [AT91SAM9] Fix NAND FLASH timings
2008-05-27 11:17 [U-Boot-Users] [PATCH] [AT91SAM9] Fix NAND FLASH timings Jean-Christophe PLAGNIOL-VILLARD
@ 2008-05-27 11:40 ` Stelian Pop
0 siblings, 0 replies; 2+ messages in thread
From: Stelian Pop @ 2008-05-27 11:40 UTC (permalink / raw)
To: u-boot
> Fix NAND FLASH timings for at91sam9x evaluation kits.
>
> New timings are based on application note
> "NAND Flash Support on AT91SAM9 Microcontrollers" available at
> http://atmel.com/dyn/resources/prod_documents/doc6255.pdf
>
> Signed-off-by: Patrice Vilchez <patice.vilchez@atmel.com>
Acked-by: Stelian Pop <stelian@popies.net>
Thanks,
--
Stelian Pop <stelian@popies.net>
^ permalink raw reply [flat|nested] 2+ messages in thread
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2008-05-27 11:17 [U-Boot-Users] [PATCH] [AT91SAM9] Fix NAND FLASH timings Jean-Christophe PLAGNIOL-VILLARD
2008-05-27 11:40 ` Stelian Pop
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