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authorPatrice Vilchez <patrice.vilchez@atmel.com>2008-07-09 17:16:00 -0400
committerRussell King <rmk+kernel@arm.linux.org.uk>2008-07-09 17:16:00 -0400
commit16074b669ea97e2bef494ec7cceb475566f763e3 (patch)
treea5c76c7d039fd1f736a483e79b6aac3d49fb2887 /arch/arm/mach-at91
parentba45ca435060614e595a107ac323a36b52619d7d (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/arm/mach-at91')
-rw-r--r--arch/arm/mach-at91/at91sam9260_devices.c4
-rw-r--r--arch/arm/mach-at91/at91sam9261_devices.c12
-rw-r--r--arch/arm/mach-at91/at91sam9263_devices.c4
-rw-r--r--arch/arm/mach-at91/at91sam9rl_devices.c12
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)