Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit ae7a3f13 authored by Alberto Panizzo's avatar Alberto Panizzo Committed by Sascha Hauer
Browse files

MXC: mach-mx31_3ds: add support for freescale mc13783 power management device. 



Power Gates must to be always enabled.

Signed-off-by: default avatarAlberto Panizzo <maramaopercheseimorto@gmail.com>
Signed-off-by: default avatarSascha Hauer <s.hauer@pengutronix.de>
parent a1ac4424

arch/arm/mach-mx3/mach-mx31_3ds.c

+45 −0
Original line number Diff line number Diff line
@@ -23,6 +23,9 @@ 
#include <linux/gpio.h>

#include <linux/smsc911x.h>

#include <linux/platform_device.h>

#include <linux/mfd/mc13783.h>

#include <linux/spi/spi.h>

#include <linux/regulator/machine.h>



#include <mach/hardware.h>

#include <asm/mach-types.h>
@@ -60,6 +63,33 @@ static int mx31_3ds_pins[] = { 
	MX31_PIN_CSPI2_SPI_RDY__SPI_RDY,

	MX31_PIN_CSPI2_SS0__SS0,

	MX31_PIN_CSPI2_SS2__SS2, /*CS for MC13783 */

	/* MC13783 IRQ */

	IOMUX_MODE(MX31_PIN_GPIO1_3, IOMUX_CONFIG_GPIO),

};



/* Regulators */

static struct regulator_init_data pwgtx_init = {

	.constraints = {

		.boot_on	= 1,

		.always_on	= 1,

	},

};



static struct mc13783_regulator_init_data mx31_3ds_regulators[] = {

	{

		.id = MC13783_REGU_PWGT1SPI, /* Power Gate for ARM core. */

		.init_data = &pwgtx_init,

	}, {

		.id = MC13783_REGU_PWGT2SPI, /* Power Gate for L2 Cache. */

		.init_data = &pwgtx_init,

	},

};



/* MC13783 */

static struct mc13783_platform_data mc13783_pdata __initdata = {

	.regulators = mx31_3ds_regulators,

	.num_regulators = ARRAY_SIZE(mx31_3ds_regulators),

	.flags  = MC13783_USE_REGULATOR,

};



/* SPI */
@@ -73,6 +103,18 @@ static struct spi_imx_master spi1_pdata = { 
	.num_chipselect	= ARRAY_SIZE(spi1_internal_chipselect),

};



static struct spi_board_info mx31_3ds_spi_devs[] __initdata = {

	{

		.modalias	= "mc13783",

		.max_speed_hz	= 1000000,

		.bus_num	= 1,

		.chip_select	= 1, /* SS2 */

		.platform_data	= &mc13783_pdata,

		.irq		= IOMUX_TO_IRQ(MX31_PIN_GPIO1_3),

		.mode = SPI_CS_HIGH,

	},

};



/*

 * NAND Flash

 */
@@ -268,7 +310,10 @@ static void __init mxc_board_init(void) 


	mxc_register_device(&mxc_uart_device0, &uart_pdata);

	mxc_register_device(&mxc_nand_device, &imx31_3ds_nand_flash_pdata);



	mxc_register_device(&mxc_spi_device1, &spi1_pdata);

	spi_register_board_info(mx31_3ds_spi_devs,

						ARRAY_SIZE(mx31_3ds_spi_devs));



	if (!mx31_3ds_init_expio())

		platform_device_register(&smsc911x_device);