diff options
author | Patrice Vilchez <patrice.vilchez@atmel.com> | 2008-07-09 17:16:00 -0400 |
---|---|---|
committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2008-07-09 17:16:00 -0400 |
commit | 16074b669ea97e2bef494ec7cceb475566f763e3 (patch) | |
tree | a5c76c7d039fd1f736a483e79b6aac3d49fb2887 /arch | |
parent | ba45ca435060614e595a107ac323a36b52619d7d (diff) |
[ARM] at91: 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 <patrice.vilchez@atmel.com>
Acked-by: Andrew Victor <linux@maxim.org.za>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch')
-rw-r--r-- | arch/arm/mach-at91/at91sam9260_devices.c | 4 | ||||
-rw-r--r-- | arch/arm/mach-at91/at91sam9261_devices.c | 12 | ||||
-rw-r--r-- | arch/arm/mach-at91/at91sam9263_devices.c | 4 | ||||
-rw-r--r-- | arch/arm/mach-at91/at91sam9rl_devices.c | 12 |
4 files changed, 16 insertions, 16 deletions
diff --git a/arch/arm/mach-at91/at91sam9260_devices.c b/arch/arm/mach-at91/at91sam9260_devices.c index 393a32aefce5..26f5cacbec35 100644 --- a/arch/arm/mach-at91/at91sam9260_devices.c +++ b/arch/arm/mach-at91/at91sam9260_devices.c | |||
@@ -321,8 +321,8 @@ void __init at91_add_device_nand(struct at91_nand_data *data) | |||
321 | at91_sys_write(AT91_MATRIX_EBICSA, csa | AT91_MATRIX_CS3A_SMC_SMARTMEDIA); | 321 | at91_sys_write(AT91_MATRIX_EBICSA, csa | AT91_MATRIX_CS3A_SMC_SMARTMEDIA); |
322 | 322 | ||
323 | /* set the bus interface characteristics */ | 323 | /* set the bus interface characteristics */ |
324 | at91_sys_write(AT91_SMC_SETUP(3), AT91_SMC_NWESETUP_(0) | AT91_SMC_NCS_WRSETUP_(0) | 324 | at91_sys_write(AT91_SMC_SETUP(3), AT91_SMC_NWESETUP_(1) | AT91_SMC_NCS_WRSETUP_(0) |
325 | | AT91_SMC_NRDSETUP_(0) | AT91_SMC_NCS_RDSETUP_(0)); | 325 | | AT91_SMC_NRDSETUP_(1) | AT91_SMC_NCS_RDSETUP_(0)); |
326 | 326 | ||
327 | at91_sys_write(AT91_SMC_PULSE(3), AT91_SMC_NWEPULSE_(3) | AT91_SMC_NCS_WRPULSE_(3) | 327 | at91_sys_write(AT91_SMC_PULSE(3), AT91_SMC_NWEPULSE_(3) | AT91_SMC_NCS_WRPULSE_(3) |
328 | | AT91_SMC_NRDPULSE_(3) | AT91_SMC_NCS_RDPULSE_(3)); | 328 | | AT91_SMC_NRDPULSE_(3) | AT91_SMC_NCS_RDPULSE_(3)); |
diff --git a/arch/arm/mach-at91/at91sam9261_devices.c b/arch/arm/mach-at91/at91sam9261_devices.c index 0babb645b83c..ec1891375dfb 100644 --- a/arch/arm/mach-at91/at91sam9261_devices.c +++ b/arch/arm/mach-at91/at91sam9261_devices.c | |||
@@ -232,19 +232,19 @@ void __init at91_add_device_nand(struct at91_nand_data *data) | |||
232 | at91_sys_write(AT91_MATRIX_EBICSA, csa | AT91_MATRIX_CS3A_SMC_SMARTMEDIA); | 232 | at91_sys_write(AT91_MATRIX_EBICSA, csa | AT91_MATRIX_CS3A_SMC_SMARTMEDIA); |
233 | 233 | ||
234 | /* set the bus interface characteristics */ | 234 | /* set the bus interface characteristics */ |
235 | at91_sys_write(AT91_SMC_SETUP(3), AT91_SMC_NWESETUP_(0) | AT91_SMC_NCS_WRSETUP_(0) | 235 | at91_sys_write(AT91_SMC_SETUP(3), AT91_SMC_NWESETUP_(1) | AT91_SMC_NCS_WRSETUP_(0) |
236 | | AT91_SMC_NRDSETUP_(0) | AT91_SMC_NCS_RDSETUP_(0)); | 236 | | AT91_SMC_NRDSETUP_(1) | AT91_SMC_NCS_RDSETUP_(0)); |
237 | 237 | ||
238 | at91_sys_write(AT91_SMC_PULSE(3), AT91_SMC_NWEPULSE_(2) | AT91_SMC_NCS_WRPULSE_(5) | 238 | at91_sys_write(AT91_SMC_PULSE(3), AT91_SMC_NWEPULSE_(3) | AT91_SMC_NCS_WRPULSE_(3) |
239 | | AT91_SMC_NRDPULSE_(2) | AT91_SMC_NCS_RDPULSE_(5)); | 239 | | AT91_SMC_NRDPULSE_(3) | AT91_SMC_NCS_RDPULSE_(3)); |
240 | 240 | ||
241 | at91_sys_write(AT91_SMC_CYCLE(3), AT91_SMC_NWECYCLE_(7) | AT91_SMC_NRDCYCLE_(7)); | 241 | at91_sys_write(AT91_SMC_CYCLE(3), AT91_SMC_NWECYCLE_(5) | AT91_SMC_NRDCYCLE_(5)); |
242 | 242 | ||
243 | if (data->bus_width_16) | 243 | if (data->bus_width_16) |
244 | mode = AT91_SMC_DBW_16; | 244 | mode = AT91_SMC_DBW_16; |
245 | else | 245 | else |
246 | mode = AT91_SMC_DBW_8; | 246 | mode = AT91_SMC_DBW_8; |
247 | at91_sys_write(AT91_SMC_MODE(3), mode | AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_TDF_(1)); | 247 | at91_sys_write(AT91_SMC_MODE(3), mode | AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_TDF_(2)); |
248 | 248 | ||
249 | /* enable pin */ | 249 | /* enable pin */ |
250 | if (data->enable_pin) | 250 | if (data->enable_pin) |
diff --git a/arch/arm/mach-at91/at91sam9263_devices.c b/arch/arm/mach-at91/at91sam9263_devices.c index 719667e25c98..8a81f76f0200 100644 --- a/arch/arm/mach-at91/at91sam9263_devices.c +++ b/arch/arm/mach-at91/at91sam9263_devices.c | |||
@@ -391,8 +391,8 @@ void __init at91_add_device_nand(struct at91_nand_data *data) | |||
391 | at91_sys_write(AT91_MATRIX_EBI0CSA, csa | AT91_MATRIX_EBI0_CS3A_SMC_SMARTMEDIA); | 391 | at91_sys_write(AT91_MATRIX_EBI0CSA, csa | AT91_MATRIX_EBI0_CS3A_SMC_SMARTMEDIA); |
392 | 392 | ||
393 | /* set the bus interface characteristics */ | 393 | /* set the bus interface characteristics */ |
394 | at91_sys_write(AT91_SMC_SETUP(3), AT91_SMC_NWESETUP_(0) | AT91_SMC_NCS_WRSETUP_(0) | 394 | at91_sys_write(AT91_SMC_SETUP(3), AT91_SMC_NWESETUP_(1) | AT91_SMC_NCS_WRSETUP_(0) |
395 | | AT91_SMC_NRDSETUP_(0) | AT91_SMC_NCS_RDSETUP_(0)); | 395 | | AT91_SMC_NRDSETUP_(1) | AT91_SMC_NCS_RDSETUP_(0)); |
396 | 396 | ||
397 | at91_sys_write(AT91_SMC_PULSE(3), AT91_SMC_NWEPULSE_(3) | AT91_SMC_NCS_WRPULSE_(3) | 397 | at91_sys_write(AT91_SMC_PULSE(3), AT91_SMC_NWEPULSE_(3) | AT91_SMC_NCS_WRPULSE_(3) |
398 | | AT91_SMC_NRDPULSE_(3) | AT91_SMC_NCS_RDPULSE_(3)); | 398 | | AT91_SMC_NRDPULSE_(3) | AT91_SMC_NCS_RDPULSE_(3)); |
diff --git a/arch/arm/mach-at91/at91sam9rl_devices.c b/arch/arm/mach-at91/at91sam9rl_devices.c index 8507dd02fe90..ae28101e7542 100644 --- a/arch/arm/mach-at91/at91sam9rl_devices.c +++ b/arch/arm/mach-at91/at91sam9rl_devices.c | |||
@@ -233,15 +233,15 @@ void __init at91_add_device_nand(struct at91_nand_data *data) | |||
233 | at91_sys_write(AT91_MATRIX_EBICSA, csa | AT91_MATRIX_CS3A_SMC_SMARTMEDIA); | 233 | at91_sys_write(AT91_MATRIX_EBICSA, csa | AT91_MATRIX_CS3A_SMC_SMARTMEDIA); |
234 | 234 | ||
235 | /* set the bus interface characteristics */ | 235 | /* set the bus interface characteristics */ |
236 | at91_sys_write(AT91_SMC_SETUP(3), AT91_SMC_NWESETUP_(0) | AT91_SMC_NCS_WRSETUP_(0) | 236 | at91_sys_write(AT91_SMC_SETUP(3), AT91_SMC_NWESETUP_(1) | AT91_SMC_NCS_WRSETUP_(0) |
237 | | AT91_SMC_NRDSETUP_(0) | AT91_SMC_NCS_RDSETUP_(0)); | 237 | | AT91_SMC_NRDSETUP_(1) | AT91_SMC_NCS_RDSETUP_(0)); |
238 | 238 | ||
239 | at91_sys_write(AT91_SMC_PULSE(3), AT91_SMC_NWEPULSE_(2) | AT91_SMC_NCS_WRPULSE_(5) | 239 | at91_sys_write(AT91_SMC_PULSE(3), AT91_SMC_NWEPULSE_(3) | AT91_SMC_NCS_WRPULSE_(3) |
240 | | AT91_SMC_NRDPULSE_(2) | AT91_SMC_NCS_RDPULSE_(5)); | 240 | | AT91_SMC_NRDPULSE_(3) | AT91_SMC_NCS_RDPULSE_(3)); |
241 | 241 | ||
242 | at91_sys_write(AT91_SMC_CYCLE(3), AT91_SMC_NWECYCLE_(7) | AT91_SMC_NRDCYCLE_(7)); | 242 | at91_sys_write(AT91_SMC_CYCLE(3), AT91_SMC_NWECYCLE_(5) | AT91_SMC_NRDCYCLE_(5)); |
243 | 243 | ||
244 | at91_sys_write(AT91_SMC_MODE(3), AT91_SMC_DBW_8 | AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_TDF_(1)); | 244 | at91_sys_write(AT91_SMC_MODE(3), AT91_SMC_DBW_8 | AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_TDF_(2)); |
245 | 245 | ||
246 | /* enable pin */ | 246 | /* enable pin */ |
247 | if (data->enable_pin) | 247 | if (data->enable_pin) |