• L
    Merge branch 'next/driver' of git://git.linaro.org/people/arnd/arm-soc · 25498e5b
    Linus Torvalds 提交于
    * 'next/driver' of git://git.linaro.org/people/arnd/arm-soc:
      hw_random: add driver for atmel true hardware random number generator
      ARM: at91: at91sam9g45: add trng clock and platform device
      MX53 Enable the AHCI SATA on MX53 SMD board
      MX53 Enable the AHCI SATA on MX53 LOCO board
      MX53 Enable the AHCI SATA on MX53 ARD board
      AHCI Add the AHCI SATA feature on the MX53 platforms
      Fix pata imx resource
      ARM: imx: Define functions for registering PATA
      ARM: imx: Add PATA clock support
      ARM: imx: Add PATA resources for other i.MX processors
      imx: efika: Enable pata.
      imx51: add pata clock
      imx51: add pata device
    
    Fix up trivial conflict (new selects next to each other from separate
    branches for EFIKA_COMMON) in arch/arm/mach-mx5/Kconfig
    25498e5b
board-mx53_ard.c 7.0 KB
/*
 * Copyright (C) 2011 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.

 * You should have received a copy of the GNU General Public License along
 * with this program; if not, write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */

#include <linux/init.h>
#include <linux/clk.h>
#include <linux/delay.h>
#include <linux/gpio.h>
#include <linux/smsc911x.h>

#include <mach/common.h>
#include <mach/hardware.h>
#include <mach/iomux-mx53.h>

#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <asm/mach/time.h>

#include "crm_regs.h"
#include "devices-imx53.h"

#define ARD_ETHERNET_INT_B	IMX_GPIO_NR(2, 31)
#define ARD_SD1_CD		IMX_GPIO_NR(1, 1)
#define ARD_SD1_WP		IMX_GPIO_NR(1, 9)
#define ARD_I2CPORTEXP_B	IMX_GPIO_NR(2, 3)
#define ARD_VOLUMEDOWN		IMX_GPIO_NR(4, 0)
#define ARD_HOME			IMX_GPIO_NR(5, 10)
#define ARD_BACK			IMX_GPIO_NR(5, 11)
#define ARD_PROG			IMX_GPIO_NR(5, 12)
#define ARD_VOLUMEUP		IMX_GPIO_NR(5, 13)

static iomux_v3_cfg_t mx53_ard_pads[] = {
	/* UART1 */
	MX53_PAD_PATA_DIOW__UART1_TXD_MUX,
	MX53_PAD_PATA_DMACK__UART1_RXD_MUX,
	/* WEIM for CS1 */
	MX53_PAD_EIM_EB3__GPIO2_31, /* ETHERNET_INT_B */
	MX53_PAD_EIM_D16__EMI_WEIM_D_16,
	MX53_PAD_EIM_D17__EMI_WEIM_D_17,
	MX53_PAD_EIM_D18__EMI_WEIM_D_18,
	MX53_PAD_EIM_D19__EMI_WEIM_D_19,
	MX53_PAD_EIM_D20__EMI_WEIM_D_20,
	MX53_PAD_EIM_D21__EMI_WEIM_D_21,
	MX53_PAD_EIM_D22__EMI_WEIM_D_22,
	MX53_PAD_EIM_D23__EMI_WEIM_D_23,
	MX53_PAD_EIM_D24__EMI_WEIM_D_24,
	MX53_PAD_EIM_D25__EMI_WEIM_D_25,
	MX53_PAD_EIM_D26__EMI_WEIM_D_26,
	MX53_PAD_EIM_D27__EMI_WEIM_D_27,
	MX53_PAD_EIM_D28__EMI_WEIM_D_28,
	MX53_PAD_EIM_D29__EMI_WEIM_D_29,
	MX53_PAD_EIM_D30__EMI_WEIM_D_30,
	MX53_PAD_EIM_D31__EMI_WEIM_D_31,
	MX53_PAD_EIM_DA0__EMI_NAND_WEIM_DA_0,
	MX53_PAD_EIM_DA1__EMI_NAND_WEIM_DA_1,
	MX53_PAD_EIM_DA2__EMI_NAND_WEIM_DA_2,
	MX53_PAD_EIM_DA3__EMI_NAND_WEIM_DA_3,
	MX53_PAD_EIM_DA4__EMI_NAND_WEIM_DA_4,
	MX53_PAD_EIM_DA5__EMI_NAND_WEIM_DA_5,
	MX53_PAD_EIM_DA6__EMI_NAND_WEIM_DA_6,
	MX53_PAD_EIM_OE__EMI_WEIM_OE,
	MX53_PAD_EIM_RW__EMI_WEIM_RW,
	MX53_PAD_EIM_CS1__EMI_WEIM_CS_1,
	/* SDHC1 */
	MX53_PAD_SD1_CMD__ESDHC1_CMD,
	MX53_PAD_SD1_CLK__ESDHC1_CLK,
	MX53_PAD_SD1_DATA0__ESDHC1_DAT0,
	MX53_PAD_SD1_DATA1__ESDHC1_DAT1,
	MX53_PAD_SD1_DATA2__ESDHC1_DAT2,
	MX53_PAD_SD1_DATA3__ESDHC1_DAT3,
	MX53_PAD_PATA_DATA8__ESDHC1_DAT4,
	MX53_PAD_PATA_DATA9__ESDHC1_DAT5,
	MX53_PAD_PATA_DATA10__ESDHC1_DAT6,
	MX53_PAD_PATA_DATA11__ESDHC1_DAT7,
	MX53_PAD_GPIO_1__GPIO1_1,
	MX53_PAD_GPIO_9__GPIO1_9,
	/* I2C2 */
	MX53_PAD_EIM_EB2__I2C2_SCL,
	MX53_PAD_KEY_ROW3__I2C2_SDA,
	/* I2C3 */
	MX53_PAD_GPIO_3__I2C3_SCL,
	MX53_PAD_GPIO_16__I2C3_SDA,
	/* GPIO */
	MX53_PAD_DISP0_DAT16__GPIO5_10,	/* home */
	MX53_PAD_DISP0_DAT17__GPIO5_11,	/* back */
	MX53_PAD_DISP0_DAT18__GPIO5_12,	/* prog */
	MX53_PAD_DISP0_DAT19__GPIO5_13,	/* vol up */
	MX53_PAD_GPIO_10__GPIO4_0,		/* vol down */
};

#define GPIO_BUTTON(gpio_num, ev_code, act_low, descr, wake)	\
{							\
	.gpio		= gpio_num,				\
	.type		= EV_KEY,				\
	.code		= ev_code,				\
	.active_low	= act_low,				\
	.desc		= "btn " descr,			\
	.wakeup		= wake,					\
}

static struct gpio_keys_button ard_buttons[] = {
	GPIO_BUTTON(ARD_HOME, KEY_HOME, 1, "home", 0),
	GPIO_BUTTON(ARD_BACK, KEY_BACK, 1, "back", 0),
	GPIO_BUTTON(ARD_PROG, KEY_PROGRAM, 1, "program", 0),
	GPIO_BUTTON(ARD_VOLUMEUP, KEY_VOLUMEUP, 1, "volume-up", 0),
	GPIO_BUTTON(ARD_VOLUMEDOWN, KEY_VOLUMEDOWN, 1, "volume-down", 0),
};

static const struct gpio_keys_platform_data ard_button_data __initconst = {
	.buttons        = ard_buttons,
	.nbuttons       = ARRAY_SIZE(ard_buttons),
};

static struct resource ard_smsc911x_resources[] = {
	{
		.start = MX53_CS1_64MB_BASE_ADDR,
		.end = MX53_CS1_64MB_BASE_ADDR + SZ_32M - 1,
		.flags = IORESOURCE_MEM,
	},
	{
		.start =  IMX_GPIO_TO_IRQ(ARD_ETHERNET_INT_B),
		.end =  IMX_GPIO_TO_IRQ(ARD_ETHERNET_INT_B),
		.flags = IORESOURCE_IRQ,
	},
};

struct smsc911x_platform_config ard_smsc911x_config = {
	.irq_polarity = SMSC911X_IRQ_POLARITY_ACTIVE_LOW,
	.irq_type = SMSC911X_IRQ_TYPE_PUSH_PULL,
	.flags = SMSC911X_USE_32BIT,
};

static struct platform_device ard_smsc_lan9220_device = {
	.name = "smsc911x",
	.id = -1,
	.num_resources = ARRAY_SIZE(ard_smsc911x_resources),
	.resource = ard_smsc911x_resources,
	.dev = {
		.platform_data = &ard_smsc911x_config,
	},
};

static const struct esdhc_platform_data mx53_ard_sd1_data __initconst = {
	.cd_gpio = ARD_SD1_CD,
	.wp_gpio = ARD_SD1_WP,
};

static struct imxi2c_platform_data mx53_ard_i2c2_data = {
	.bitrate = 50000,
};

static struct imxi2c_platform_data mx53_ard_i2c3_data = {
	.bitrate = 400000,
};

static void __init mx53_ard_io_init(void)
{
	mxc_iomux_v3_setup_multiple_pads(mx53_ard_pads,
				ARRAY_SIZE(mx53_ard_pads));

	gpio_request(ARD_ETHERNET_INT_B, "eth-int-b");
	gpio_direction_input(ARD_ETHERNET_INT_B);

	gpio_request(ARD_I2CPORTEXP_B, "i2cptexp-rst");
	gpio_direction_output(ARD_I2CPORTEXP_B, 1);
}

/* Config CS1 settings for ethernet controller */
static int weim_cs_config(void)
{
	u32 reg;
	void __iomem *weim_base, *iomuxc_base;

	weim_base = ioremap(MX53_WEIM_BASE_ADDR, SZ_4K);
	if (!weim_base)
		return -ENOMEM;

	iomuxc_base = ioremap(MX53_IOMUXC_BASE_ADDR, SZ_4K);
	if (!iomuxc_base)
		return -ENOMEM;

	/* CS1 timings for LAN9220 */
	writel(0x20001, (weim_base + 0x18));
	writel(0x0, (weim_base + 0x1C));
	writel(0x16000202, (weim_base + 0x20));
	writel(0x00000002, (weim_base + 0x24));
	writel(0x16002082, (weim_base + 0x28));
	writel(0x00000000, (weim_base + 0x2C));
	writel(0x00000000, (weim_base + 0x90));

	/* specify 64 MB on CS1 and CS0 on GPR1 */
	reg = readl(iomuxc_base + 0x4);
	reg &= ~0x3F;
	reg |= 0x1B;
	writel(reg, (iomuxc_base + 0x4));

	iounmap(iomuxc_base);
	iounmap(weim_base);

	return 0;
}

static struct platform_device *devices[] __initdata = {
	&ard_smsc_lan9220_device,
};

static void __init mx53_ard_board_init(void)
{
	imx53_soc_init();
	imx53_add_imx_uart(0, NULL);

	mx53_ard_io_init();
	weim_cs_config();
	platform_add_devices(devices, ARRAY_SIZE(devices));

	imx53_add_sdhci_esdhc_imx(0, &mx53_ard_sd1_data);
	imx53_add_imx2_wdt(0, NULL);
	imx53_add_imx_i2c(1, &mx53_ard_i2c2_data);
	imx53_add_imx_i2c(2, &mx53_ard_i2c3_data);
	imx_add_gpio_keys(&ard_button_data);
	imx53_add_ahci_imx();
}

static void __init mx53_ard_timer_init(void)
{
	mx53_clocks_init(32768, 24000000, 22579200, 0);
}

static struct sys_timer mx53_ard_timer = {
	.init	= mx53_ard_timer_init,
};

MACHINE_START(MX53_ARD, "Freescale MX53 ARD Board")
	.map_io = mx53_map_io,
	.init_early = imx53_init_early,
	.init_irq = mx53_init_irq,
	.timer = &mx53_ard_timer,
	.init_machine = mx53_ard_board_init,
MACHINE_END
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