[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>
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@ -321,8 +321,8 @@ void __init at91_add_device_nand(struct at91_nand_data *data)
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at91_sys_write(AT91_MATRIX_EBICSA, csa | AT91_MATRIX_CS3A_SMC_SMARTMEDIA);
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/* set the bus interface characteristics */
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at91_sys_write(AT91_SMC_SETUP(3), AT91_SMC_NWESETUP_(0) | AT91_SMC_NCS_WRSETUP_(0)
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| AT91_SMC_NRDSETUP_(0) | AT91_SMC_NCS_RDSETUP_(0));
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at91_sys_write(AT91_SMC_SETUP(3), AT91_SMC_NWESETUP_(1) | AT91_SMC_NCS_WRSETUP_(0)
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| AT91_SMC_NRDSETUP_(1) | AT91_SMC_NCS_RDSETUP_(0));
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at91_sys_write(AT91_SMC_PULSE(3), AT91_SMC_NWEPULSE_(3) | AT91_SMC_NCS_WRPULSE_(3)
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| AT91_SMC_NRDPULSE_(3) | AT91_SMC_NCS_RDPULSE_(3));
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@ -232,19 +232,19 @@ void __init at91_add_device_nand(struct at91_nand_data *data)
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at91_sys_write(AT91_MATRIX_EBICSA, csa | AT91_MATRIX_CS3A_SMC_SMARTMEDIA);
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/* set the bus interface characteristics */
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at91_sys_write(AT91_SMC_SETUP(3), AT91_SMC_NWESETUP_(0) | AT91_SMC_NCS_WRSETUP_(0)
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| AT91_SMC_NRDSETUP_(0) | AT91_SMC_NCS_RDSETUP_(0));
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at91_sys_write(AT91_SMC_SETUP(3), AT91_SMC_NWESETUP_(1) | AT91_SMC_NCS_WRSETUP_(0)
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| AT91_SMC_NRDSETUP_(1) | AT91_SMC_NCS_RDSETUP_(0));
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at91_sys_write(AT91_SMC_PULSE(3), AT91_SMC_NWEPULSE_(2) | AT91_SMC_NCS_WRPULSE_(5)
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| AT91_SMC_NRDPULSE_(2) | AT91_SMC_NCS_RDPULSE_(5));
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at91_sys_write(AT91_SMC_PULSE(3), AT91_SMC_NWEPULSE_(3) | AT91_SMC_NCS_WRPULSE_(3)
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| AT91_SMC_NRDPULSE_(3) | AT91_SMC_NCS_RDPULSE_(3));
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at91_sys_write(AT91_SMC_CYCLE(3), AT91_SMC_NWECYCLE_(7) | AT91_SMC_NRDCYCLE_(7));
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at91_sys_write(AT91_SMC_CYCLE(3), AT91_SMC_NWECYCLE_(5) | AT91_SMC_NRDCYCLE_(5));
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if (data->bus_width_16)
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mode = AT91_SMC_DBW_16;
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else
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mode = AT91_SMC_DBW_8;
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at91_sys_write(AT91_SMC_MODE(3), mode | AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_TDF_(1));
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at91_sys_write(AT91_SMC_MODE(3), mode | AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_TDF_(2));
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/* enable pin */
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if (data->enable_pin)
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@ -391,8 +391,8 @@ void __init at91_add_device_nand(struct at91_nand_data *data)
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at91_sys_write(AT91_MATRIX_EBI0CSA, csa | AT91_MATRIX_EBI0_CS3A_SMC_SMARTMEDIA);
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/* set the bus interface characteristics */
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at91_sys_write(AT91_SMC_SETUP(3), AT91_SMC_NWESETUP_(0) | AT91_SMC_NCS_WRSETUP_(0)
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| AT91_SMC_NRDSETUP_(0) | AT91_SMC_NCS_RDSETUP_(0));
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at91_sys_write(AT91_SMC_SETUP(3), AT91_SMC_NWESETUP_(1) | AT91_SMC_NCS_WRSETUP_(0)
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| AT91_SMC_NRDSETUP_(1) | AT91_SMC_NCS_RDSETUP_(0));
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at91_sys_write(AT91_SMC_PULSE(3), AT91_SMC_NWEPULSE_(3) | AT91_SMC_NCS_WRPULSE_(3)
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| AT91_SMC_NRDPULSE_(3) | AT91_SMC_NCS_RDPULSE_(3));
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@ -233,15 +233,15 @@ void __init at91_add_device_nand(struct at91_nand_data *data)
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at91_sys_write(AT91_MATRIX_EBICSA, csa | AT91_MATRIX_CS3A_SMC_SMARTMEDIA);
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/* set the bus interface characteristics */
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at91_sys_write(AT91_SMC_SETUP(3), AT91_SMC_NWESETUP_(0) | AT91_SMC_NCS_WRSETUP_(0)
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| AT91_SMC_NRDSETUP_(0) | AT91_SMC_NCS_RDSETUP_(0));
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at91_sys_write(AT91_SMC_SETUP(3), AT91_SMC_NWESETUP_(1) | AT91_SMC_NCS_WRSETUP_(0)
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| AT91_SMC_NRDSETUP_(1) | AT91_SMC_NCS_RDSETUP_(0));
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at91_sys_write(AT91_SMC_PULSE(3), AT91_SMC_NWEPULSE_(2) | AT91_SMC_NCS_WRPULSE_(5)
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| AT91_SMC_NRDPULSE_(2) | AT91_SMC_NCS_RDPULSE_(5));
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at91_sys_write(AT91_SMC_PULSE(3), AT91_SMC_NWEPULSE_(3) | AT91_SMC_NCS_WRPULSE_(3)
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| AT91_SMC_NRDPULSE_(3) | AT91_SMC_NCS_RDPULSE_(3));
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at91_sys_write(AT91_SMC_CYCLE(3), AT91_SMC_NWECYCLE_(7) | AT91_SMC_NRDCYCLE_(7));
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at91_sys_write(AT91_SMC_CYCLE(3), AT91_SMC_NWECYCLE_(5) | AT91_SMC_NRDCYCLE_(5));
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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));
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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));
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/* enable pin */
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if (data->enable_pin)
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