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Commit fb85205a authored by Sergey Matyukevich's avatar Sergey Matyukevich Committed by Russell King
Browse files

ARM: 5631/1: Platform data for CF/IDE support in AT91SAM9260 



This patch adds platform data for CF/IDE support
and SMC init code for AT91SAM9260 SoC.

Tested-by: default avatarSergey Matyukevich <geomatsi@gmail.com>
Signed-off-by: default avatarSergey Matyukevich <geomatsi@gmail.com>
Acked-by: default avatarAndrew Victor <linux@maxim.org.za>
Signed-off-by: default avatarRussell King <rmk+kernel@arm.linux.org.uk>
parent 10233a93

arch/arm/mach-at91/at91sam9260_devices.c

+116 −0
Original line number Diff line number Diff line
@@ -1113,6 +1113,122 @@ void __init at91_set_serial_console(unsigned portnr) {} 
void __init at91_add_device_serial(void) {}

#endif



/* --------------------------------------------------------------------

 *  CF/IDE

 * -------------------------------------------------------------------- */



#if defined(CONFIG_BLK_DEV_IDE_AT91) || defined(CONFIG_BLK_DEV_IDE_AT91_MODULE) || \

	defined(CONFIG_PATA_AT91) || defined(CONFIG_PATA_AT91_MODULE) || \

	defined(CONFIG_AT91_CF) || defined(CONFIG_AT91_CF_MODULE)



static struct at91_cf_data cf0_data;



static struct resource cf0_resources[] = {

	[0] = {

		.start	= AT91_CHIPSELECT_4,

		.end	= AT91_CHIPSELECT_4 + SZ_256M - 1,

		.flags	= IORESOURCE_MEM,

	}

};



static struct platform_device cf0_device = {

	.id		= 0,

	.dev		= {

				.platform_data	= &cf0_data,

	},

	.resource	= cf0_resources,

	.num_resources	= ARRAY_SIZE(cf0_resources),

};



static struct at91_cf_data cf1_data;



static struct resource cf1_resources[] = {

	[0] = {

		.start	= AT91_CHIPSELECT_5,

		.end	= AT91_CHIPSELECT_5 + SZ_256M - 1,

		.flags	= IORESOURCE_MEM,

	}

};



static struct platform_device cf1_device = {

	.id		= 1,

	.dev		= {

				.platform_data	= &cf1_data,

	},

	.resource	= cf1_resources,

	.num_resources	= ARRAY_SIZE(cf1_resources),

};



void __init at91_add_device_cf(struct at91_cf_data *data)

{

	struct platform_device *pdev;

	unsigned long csa;



	if (!data)

		return;



	csa = at91_sys_read(AT91_MATRIX_EBICSA);



	switch (data->chipselect) {

	case 4:

		at91_set_multi_drive(AT91_PIN_PC8, 0);

		at91_set_A_periph(AT91_PIN_PC8, 0);

		csa |= AT91_MATRIX_CS4A_SMC_CF1;

		cf0_data = *data;

		pdev = &cf0_device;

		break;

	case 5:

		at91_set_multi_drive(AT91_PIN_PC9, 0);

		at91_set_A_periph(AT91_PIN_PC9, 0);

		csa |= AT91_MATRIX_CS5A_SMC_CF2;

		cf1_data = *data;

		pdev = &cf1_device;

		break;

	default:

		printk(KERN_ERR "AT91 CF: bad chip-select requested (%u)\n",

		       data->chipselect);

		return;

	}



	at91_sys_write(AT91_MATRIX_EBICSA, csa);



	if (data->rst_pin) {

		at91_set_multi_drive(data->rst_pin, 0);

		at91_set_gpio_output(data->rst_pin, 1);

	}



	if (data->irq_pin) {

		at91_set_gpio_input(data->irq_pin, 0);

		at91_set_deglitch(data->irq_pin, 1);

	}



	if (data->det_pin) {

		at91_set_gpio_input(data->det_pin, 0);

		at91_set_deglitch(data->det_pin, 1);

	}



	at91_set_B_periph(AT91_PIN_PC6, 0);     /* CFCE1 */

	at91_set_B_periph(AT91_PIN_PC7, 0);     /* CFCE2 */

	at91_set_A_periph(AT91_PIN_PC10, 0);    /* CFRNW */

	at91_set_A_periph(AT91_PIN_PC15, 1);    /* NWAIT */



	if (data->flags & AT91_CF_TRUE_IDE)

#if defined(CONFIG_PATA_AT91) || defined(CONFIG_PATA_AT91_MODULE)

		pdev->name = "pata_at91";

#elif defined(CONFIG_BLK_DEV_IDE_AT91) || defined(CONFIG_BLK_DEV_IDE_AT91_MODULE)

		pdev->name = "at91_ide";

#else

#warning "board requires AT91_CF_TRUE_IDE: enable either at91_ide or pata_at91"

#endif

	else

		pdev->name = "at91_cf";



	platform_device_register(pdev);

}



#else

void __init at91_add_device_cf(struct at91_cf_data * data) {}

#endif



/* -------------------------------------------------------------------- */

/*