void __init at91_add_device_nand(struct atmel_nand_data *data)
{
- unsigned long csa, mode;
+ unsigned long csa;
if (!data)
return;
csa = at91_sys_read(AT91_MATRIX_EBICSA);
at91_sys_write(AT91_MATRIX_EBICSA, csa | AT91_MATRIX_CS3A_SMC_SMARTMEDIA);
- /* set the bus interface characteristics */
- at91_sys_write(AT91_SMC_SETUP(3), 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));
-
- at91_sys_write(AT91_SMC_CYCLE(3), AT91_SMC_NWECYCLE_(5) | AT91_SMC_NRDCYCLE_(5));
-
- if (data->bus_width_16)
- mode = AT91_SMC_DBW_16;
- else
- mode = AT91_SMC_DBW_8;
- at91_sys_write(AT91_SMC_MODE(3), mode | AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_TDF_(2));
-
/* enable pin */
if (data->enable_pin)
at91_set_gpio_output(data->enable_pin, 1);