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authorAndrew Victor <linux@maxim.org.za>2008-10-06 15:01:00 -0400
committerRussell King <rmk+kernel@arm.linux.org.uk>2008-12-01 12:18:10 -0500
commit461d3b4dcf2b3b92f819b668d16b36a87046fd98 (patch)
treeb4a2f88b992997a5c7d7771f6e9c4376e6489d44 /arch/arm/mach-at91/at91sam9260_devices.c
parent6781002bec5237ee8ac1e1daeb0ba976e780a884 (diff)
[ARM] 5288/1: [AT91] Remove SMC configuration from devices.c files
In at91_add_device_nand(), do not configure the Static Memory controller with specific timing values. The *_devices.c files are board independent, and the SMC timing values are specific to the NAND devices that are installed on the board. The board-specific files are now responsible for configuring the Static Memory controller (if the don't want to leave it up to a bootloader). Signed-off-by: Andrew Victor <linux@maxim.org.za> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/mach-at91/at91sam9260_devices.c')
-rw-r--r--arch/arm/mach-at91/at91sam9260_devices.c38
1 files changed, 1 insertions, 37 deletions
diff --git a/arch/arm/mach-at91/at91sam9260_devices.c b/arch/arm/mach-at91/at91sam9260_devices.c
index 7774d17dde74..fdde1ea21b07 100644
--- a/arch/arm/mach-at91/at91sam9260_devices.c
+++ b/arch/arm/mach-at91/at91sam9260_devices.c
@@ -313,7 +313,7 @@ static struct platform_device at91sam9260_nand_device = {
313 313
314void __init at91_add_device_nand(struct atmel_nand_data *data) 314void __init at91_add_device_nand(struct atmel_nand_data *data)
315{ 315{
316 unsigned long csa, mode; 316 unsigned long csa;
317 317
318 if (!data) 318 if (!data)
319 return; 319 return;
@@ -321,42 +321,6 @@ void __init at91_add_device_nand(struct atmel_nand_data *data)
321 csa = at91_sys_read(AT91_MATRIX_EBICSA); 321 csa = at91_sys_read(AT91_MATRIX_EBICSA);
322 at91_sys_write(AT91_MATRIX_EBICSA, csa | AT91_MATRIX_CS3A_SMC_SMARTMEDIA); 322 at91_sys_write(AT91_MATRIX_EBICSA, csa | AT91_MATRIX_CS3A_SMC_SMARTMEDIA);
323 323
324 if (cpu_is_at91sam9260()) {
325 /* Timing for sam9260 */
326 /* set the bus interface characteristics */
327 at91_sys_write(AT91_SMC_SETUP(3), AT91_SMC_NWESETUP_(1) | AT91_SMC_NCS_WRSETUP_(0)
328 | AT91_SMC_NRDSETUP_(1) | AT91_SMC_NCS_RDSETUP_(0));
329
330 at91_sys_write(AT91_SMC_PULSE(3), AT91_SMC_NWEPULSE_(3) | AT91_SMC_NCS_WRPULSE_(3)
331 | AT91_SMC_NRDPULSE_(3) | AT91_SMC_NCS_RDPULSE_(3));
332
333 at91_sys_write(AT91_SMC_CYCLE(3), AT91_SMC_NWECYCLE_(5) | AT91_SMC_NRDCYCLE_(5));
334
335 if (data->bus_width_16)
336 mode = AT91_SMC_DBW_16;
337 else
338 mode = AT91_SMC_DBW_8;
339 at91_sys_write(AT91_SMC_MODE(3), mode | AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_TDF_(2));
340 }
341
342 if (cpu_is_at91sam9g20()) {
343 /* Timing for sam9g20 */
344 /* set the bus interface characteristics */
345 at91_sys_write(AT91_SMC_SETUP(3), AT91_SMC_NWESETUP_(2) | AT91_SMC_NCS_WRSETUP_(0)
346 | AT91_SMC_NRDSETUP_(2) | AT91_SMC_NCS_RDSETUP_(0));
347
348 at91_sys_write(AT91_SMC_PULSE(3), AT91_SMC_NWEPULSE_(4) | AT91_SMC_NCS_WRPULSE_(4)
349 | AT91_SMC_NRDPULSE_(4) | AT91_SMC_NCS_RDPULSE_(4));
350
351 at91_sys_write(AT91_SMC_CYCLE(3), AT91_SMC_NWECYCLE_(7) | AT91_SMC_NRDCYCLE_(7));
352
353 if (data->bus_width_16)
354 mode = AT91_SMC_DBW_16;
355 else
356 mode = AT91_SMC_DBW_8;
357 at91_sys_write(AT91_SMC_MODE(3), mode | AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_TDF_(3));
358 }
359
360 /* enable pin */ 324 /* enable pin */
361 if (data->enable_pin) 325 if (data->enable_pin)
362 at91_set_gpio_output(data->enable_pin, 1); 326 at91_set_gpio_output(data->enable_pin, 1);