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Commit 79ce72aa authored by Lauri Hintsala's avatar Lauri Hintsala Committed by Shawn Guo
Browse files

ARM: mxs: Add initial support for Bluegiga APX4 Development Kit 



Added initial support for APX4 Development Kit with RTC, LED, Ethernet,
Audio, SDIO, I2C, DUART and AUART support.

Signed-off-by: default avatarLauri Hintsala <lauri.hintsala@bluegiga.com>
Signed-off-by: default avatarVeli-Pekka Peltola <veli-pekka.peltola@bluegiga.com>
Signed-off-by: default avatarShawn Guo <shawn.guo@linaro.org>
parent 5a91d7c8

arch/arm/mach-mxs/Kconfig

+16 −0
Original line number Diff line number Diff line
@@ -83,6 +83,18 @@ config MODULE_M28 
	select MXS_HAVE_PLATFORM_MXSFB

	select MXS_OCOTP



config MODULE_APX4

	bool

	select SOC_IMX28

	select LEDS_GPIO_REGISTER

	select MXS_HAVE_AMBA_DUART

	select MXS_HAVE_PLATFORM_AUART

	select MXS_HAVE_PLATFORM_FEC

	select MXS_HAVE_PLATFORM_MXS_I2C

	select MXS_HAVE_PLATFORM_MXS_MMC

	select MXS_HAVE_PLATFORM_MXS_SAIF

	select MXS_OCOTP



config MACH_TX28

	bool "Ka-Ro TX28 module"

	select MODULE_TX28
@@ -91,4 +103,8 @@ config MACH_M28EVK 
	bool "Support DENX M28EVK Platform"

	select MODULE_M28



config MACH_APX4DEVKIT

	bool "Support Bluegiga APX4 Development Kit"

	select MODULE_APX4



endif

arch/arm/mach-mxs/Makefile

+1 −0
Original line number Diff line number Diff line
@@ -11,6 +11,7 @@ obj-$(CONFIG_MACH_STMP378X_DEVB) += mach-stmp378x_devb.o 
obj-$(CONFIG_MACH_MX23EVK) += mach-mx23evk.o

obj-$(CONFIG_MACH_MX28EVK) += mach-mx28evk.o

obj-$(CONFIG_MACH_M28EVK)    += mach-m28evk.o

obj-$(CONFIG_MACH_APX4DEVKIT) += mach-apx4devkit.o

obj-$(CONFIG_MODULE_TX28) += module-tx28.o

obj-$(CONFIG_MACH_TX28)    += mach-tx28.o

arch/arm/mach-mxs/mach-apx4devkit.c

0 → 100644
+260 −0
Original line number Diff line number Diff line 
/*

 * Copyright (C) 2011-2012

 * Lauri Hintsala, Bluegiga, <lauri.hintsala@bluegiga.com>

 * Veli-Pekka Peltola, Bluegiga, <veli-pekka.peltola@bluegiga.com>

 *

 * based on: mach-mx28evk.c

 * Copyright 2010 Freescale Semiconductor, Inc. All Rights Reserved.

 *

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License as published by

 * the Free Software Foundation; either version 2 of the License, or

 * (at your option) any later version.

 *

 * This program is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 * GNU General Public License for more details.

 */



#include <linux/delay.h>

#include <linux/platform_device.h>

#include <linux/gpio.h>

#include <linux/leds.h>

#include <linux/clk.h>

#include <linux/i2c.h>

#include <linux/regulator/machine.h>

#include <linux/regulator/fixed.h>

#include <linux/micrel_phy.h>



#include <asm/mach-types.h>

#include <asm/mach/arch.h>

#include <asm/mach/time.h>



#include <mach/common.h>

#include <mach/digctl.h>

#include <mach/iomux-mx28.h>



#include "devices-mx28.h"



#define APX4DEVKIT_GPIO_USERLED	MXS_GPIO_NR(3, 28)



static const iomux_cfg_t apx4devkit_pads[] __initconst = {

	/* duart */

	MX28_PAD_PWM0__DUART_RX | MXS_PAD_CTRL,

	MX28_PAD_PWM1__DUART_TX | MXS_PAD_CTRL,



	/* auart0 */

	MX28_PAD_AUART0_RX__AUART0_RX | MXS_PAD_CTRL,

	MX28_PAD_AUART0_TX__AUART0_TX | MXS_PAD_CTRL,

	MX28_PAD_AUART0_CTS__AUART0_CTS | MXS_PAD_CTRL,

	MX28_PAD_AUART0_RTS__AUART0_RTS | MXS_PAD_CTRL,



	/* auart1 */

	MX28_PAD_AUART1_RX__AUART1_RX | MXS_PAD_CTRL,

	MX28_PAD_AUART1_TX__AUART1_TX | MXS_PAD_CTRL,



	/* auart2 */

	MX28_PAD_SSP2_SCK__AUART2_RX | MXS_PAD_CTRL,

	MX28_PAD_SSP2_MOSI__AUART2_TX | MXS_PAD_CTRL,



	/* auart3 */

	MX28_PAD_SSP2_MISO__AUART3_RX | MXS_PAD_CTRL,

	MX28_PAD_SSP2_SS0__AUART3_TX | MXS_PAD_CTRL,



#define MXS_PAD_FEC	(MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP)

	/* fec0 */

	MX28_PAD_ENET0_MDC__ENET0_MDC | MXS_PAD_FEC,

	MX28_PAD_ENET0_MDIO__ENET0_MDIO | MXS_PAD_FEC,

	MX28_PAD_ENET0_RX_EN__ENET0_RX_EN | MXS_PAD_FEC,

	MX28_PAD_ENET0_RXD0__ENET0_RXD0 | MXS_PAD_FEC,

	MX28_PAD_ENET0_RXD1__ENET0_RXD1 | MXS_PAD_FEC,

	MX28_PAD_ENET0_TX_EN__ENET0_TX_EN | MXS_PAD_FEC,

	MX28_PAD_ENET0_TXD0__ENET0_TXD0 | MXS_PAD_FEC,

	MX28_PAD_ENET0_TXD1__ENET0_TXD1 | MXS_PAD_FEC,

	MX28_PAD_ENET_CLK__CLKCTRL_ENET | MXS_PAD_FEC,



	/* i2c */

	MX28_PAD_I2C0_SCL__I2C0_SCL,

	MX28_PAD_I2C0_SDA__I2C0_SDA,



	/* mmc0 */

	MX28_PAD_SSP0_DATA0__SSP0_D0 |

		(MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP),

	MX28_PAD_SSP0_DATA1__SSP0_D1 |

		(MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP),

	MX28_PAD_SSP0_DATA2__SSP0_D2 |

		(MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP),

	MX28_PAD_SSP0_DATA3__SSP0_D3 |

		(MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP),

	MX28_PAD_SSP0_DATA4__SSP0_D4 |

		(MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP),

	MX28_PAD_SSP0_DATA5__SSP0_D5 |

		(MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP),

	MX28_PAD_SSP0_DATA6__SSP0_D6 |

		(MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP),

	MX28_PAD_SSP0_DATA7__SSP0_D7 |

		(MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP),

	MX28_PAD_SSP0_CMD__SSP0_CMD |

		(MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP),

	MX28_PAD_SSP0_DETECT__SSP0_CARD_DETECT |

		(MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_NOPULL),

	MX28_PAD_SSP0_SCK__SSP0_SCK |

		(MXS_PAD_12MA | MXS_PAD_3V3 | MXS_PAD_NOPULL),



	/* led */

	MX28_PAD_PWM3__GPIO_3_28 | MXS_PAD_CTRL,



	/* saif0 & saif1 */

	MX28_PAD_SAIF0_MCLK__SAIF0_MCLK |

		(MXS_PAD_12MA | MXS_PAD_3V3 | MXS_PAD_PULLUP),

	MX28_PAD_SAIF0_LRCLK__SAIF0_LRCLK |

		(MXS_PAD_12MA | MXS_PAD_3V3 | MXS_PAD_PULLUP),

	MX28_PAD_SAIF0_BITCLK__SAIF0_BITCLK |

		(MXS_PAD_12MA | MXS_PAD_3V3 | MXS_PAD_PULLUP),

	MX28_PAD_SAIF0_SDATA0__SAIF0_SDATA0 |

		(MXS_PAD_12MA | MXS_PAD_3V3 | MXS_PAD_PULLUP),

	MX28_PAD_SAIF1_SDATA0__SAIF1_SDATA0 |

		(MXS_PAD_12MA | MXS_PAD_3V3 | MXS_PAD_PULLUP),

};



/* led */

static const struct gpio_led apx4devkit_leds[] __initconst = {

	{

		.name = "user-led",

		.default_trigger = "heartbeat",

		.gpio = APX4DEVKIT_GPIO_USERLED,

	},

};



static const struct gpio_led_platform_data apx4devkit_led_data __initconst = {

	.leds = apx4devkit_leds,

	.num_leds = ARRAY_SIZE(apx4devkit_leds),

};



static const struct fec_platform_data mx28_fec_pdata __initconst = {

	.phy = PHY_INTERFACE_MODE_RMII,

};



static const struct mxs_mmc_platform_data apx4devkit_mmc_pdata __initconst = {

	.wp_gpio = -EINVAL,

	.flags = SLOTF_4_BIT_CAPABLE,

};



static const struct i2c_board_info apx4devkit_i2c_boardinfo[] __initconst = {

	{ I2C_BOARD_INFO("sgtl5000", 0x0a) }, /* ASoC */

	{ I2C_BOARD_INFO("pcf8563", 0x51) }, /* RTC */

};



#if defined(CONFIG_REGULATOR_FIXED_VOLTAGE) || \

		defined(CONFIG_REGULATOR_FIXED_VOLTAGE_MODULE)

static struct regulator_consumer_supply apx4devkit_audio_consumer_supplies[] = {

	REGULATOR_SUPPLY("VDDA", "0-000a"),

	REGULATOR_SUPPLY("VDDIO", "0-000a"),

};



static struct regulator_init_data apx4devkit_vdd_reg_init_data = {

	.constraints	= {

		.name	= "3V3",

		.always_on = 1,

	},

	.consumer_supplies = apx4devkit_audio_consumer_supplies,

	.num_consumer_supplies = ARRAY_SIZE(apx4devkit_audio_consumer_supplies),

};



static struct fixed_voltage_config apx4devkit_vdd_pdata = {

	.supply_name	= "board-3V3",

	.microvolts	= 3300000,

	.gpio		= -EINVAL,

	.enabled_at_boot = 1,

	.init_data	= &apx4devkit_vdd_reg_init_data,

};



static struct platform_device apx4devkit_voltage_regulator = {

	.name		= "reg-fixed-voltage",

	.id		= -1,

	.num_resources	= 0,

	.dev		= {

		.platform_data	= &apx4devkit_vdd_pdata,

	},

};



static void __init apx4devkit_add_regulators(void)

{

	platform_device_register(&apx4devkit_voltage_regulator);

}

#else

static void __init apx4devkit_add_regulators(void) {}

#endif



static const struct mxs_saif_platform_data

			apx4devkit_mxs_saif_pdata[] __initconst = {

	/* working on EXTMSTR0 mode (saif0 master, saif1 slave) */

	{

		.master_mode = 1,

		.master_id = 0,

	}, {

		.master_mode = 0,

		.master_id = 0,

	},

};



static int apx4devkit_phy_fixup(struct phy_device *phy)

{

	phy->dev_flags |= MICREL_PHY_50MHZ_CLK;

	return 0;

}



static void __init apx4devkit_init(void)

{

	mxs_iomux_setup_multiple_pads(apx4devkit_pads,

			ARRAY_SIZE(apx4devkit_pads));



	mx28_add_duart();

	mx28_add_auart0();

	mx28_add_auart1();

	mx28_add_auart2();

	mx28_add_auart3();



	/*

	 * Register fixup for the Micrel KS8031 PHY clock

	 * (shares same ID with KS8051)

	 */

	phy_register_fixup_for_uid(PHY_ID_KS8051, MICREL_PHY_ID_MASK,

			apx4devkit_phy_fixup);



	mx28_add_fec(0, &mx28_fec_pdata);



	mx28_add_mxs_mmc(0, &apx4devkit_mmc_pdata);



	gpio_led_register_device(0, &apx4devkit_led_data);



	mxs_saif_clkmux_select(MXS_DIGCTL_SAIF_CLKMUX_EXTMSTR0);

	mx28_add_saif(0, &apx4devkit_mxs_saif_pdata[0]);

	mx28_add_saif(1, &apx4devkit_mxs_saif_pdata[1]);



	apx4devkit_add_regulators();



	mx28_add_mxs_i2c(0);

	i2c_register_board_info(0, apx4devkit_i2c_boardinfo,

			ARRAY_SIZE(apx4devkit_i2c_boardinfo));



	mxs_add_platform_device("mxs-sgtl5000", 0, NULL, 0, NULL, 0);

}



static void __init apx4devkit_timer_init(void)

{

	mx28_clocks_init();

}



static struct sys_timer apx4devkit_timer = {

	.init	= apx4devkit_timer_init,

};



MACHINE_START(APX4DEVKIT, "Bluegiga APX4 Development Kit")

	.map_io		= mx28_map_io,

	.init_irq	= mx28_init_irq,

	.timer		= &apx4devkit_timer,

	.init_machine	= apx4devkit_init,

	.restart	= mxs_restart,

MACHINE_END