/*
 * (C) 2007 Pengutronix, Sascha Hauer <s.hauer@pengutronix.de>
 *
 * See file CREDITS for list of people who contributed to this
 * project.
 *
 * 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., 59 Temple Place, Suite 330, Boston,
 * MA 02111-1307 USA
 *
 * Board support for Phytec's, i.MX31 based CPU card, called: PCM037
 */

#include <common.h>
#include <init.h>
#include <driver.h>
#include <environment.h>
#include <asm/arch/imx-regs.h>
#include <asm/armlinux.h>
#include <asm/arch/gpio.h>
#include <asm/io.h>
#include <partition.h>
#include <asm/mach-types.h>
#include <asm/arch/imx-nand.h>

/*
 * Up to 32MiB NOR type flash, connected to
 * CS line 0, data width is 16 bit
 */
static struct device_d cfi_dev = {
	.name     = "cfi_flash",
	.id       = "nor0",
	.map_base = IMX_CS0_BASE,
	.size     = 32 * 1024 * 1024,	/* area size */
};

/*
 * up to 2MiB static RAM type memory, connected
 * to CS4, data width is 16 bit
 */
static struct device_d sram_dev = {
	.name     = "sram",
	.id       = "sram0",
	.map_base = IMX_CS4_BASE,
	.size     = IMX_CS4_RANGE,	/* area size */
};

/*
 * SMSC 9217 network controller
 * connected to CS line 1 and interrupt line
 * GPIO3, data width is 16 bit
 */
static struct device_d network_dev = {
	.name     = "smc911x",
	.id       = "eth0",
	.map_base = IMX_CS1_BASE,
	.size     = IMX_CS1_RANGE,	/* area size */
	.type     = DEVICE_TYPE_ETHER,
};

#if defined CONFIG_PCM037_SDRAM_BANK0_128MB
#define SDRAM0	128
#elif defined CONFIG_PCM037_SDRAM_BANK0_256MB
#define SDRAM0	256
#endif

static struct device_d sdram0_dev = {
	.name     = "ram",
	.id       = "ram0",

	.map_base = IMX_SDRAM_CS0,
	.size     = SDRAM0 * 1024 * 1024,	/* fix size */

	.type     = DEVICE_TYPE_DRAM,
};

#ifndef CONFIG_PCM037_SDRAM_BANK1_NONE

#if defined CONFIG_PCM037_SDRAM_BANK1_128MB
#define SDRAM1	128
#elif defined CONFIG_PCM037_SDRAM_BANK1_256MB
#define SDRAM1	256
#endif

static struct device_d sdram1_dev = {
	.name     = "ram",
	.id       = "ram1",

	.map_base = IMX_SDRAM_CS1,
	.size     = SDRAM1 * 1024 * 1024,	/* fix size */

	.type     = DEVICE_TYPE_DRAM,
};
#endif

struct imx_nand_platform_data nand_info = {
	.width = 1,
	.hw_ecc = 1,
};

static struct device_d nand_dev = {
	.name     = "imx_nand",
	.map_base = 0xB8000000,
	.platform_data	= &nand_info,
};

static int imx31_devices_init(void)
{
	__REG(CSCR_U(0)) = 0x0000cf03; /* CS0: Nor Flash */
	__REG(CSCR_L(0)) = 0x10000d03;
	__REG(CSCR_A(0)) = 0x00720900;

	__REG(CSCR_U(1)) = 0x0000df06; /* CS1: Network Controller */
	__REG(CSCR_L(1)) = 0x444a4541;
	__REG(CSCR_A(1)) = 0x44443302;

	__REG(CSCR_U(4)) = 0x0000d843; /* CS4: SRAM */
	__REG(CSCR_L(4)) = 0x22252521;
	__REG(CSCR_A(4)) = 0x22220a00;

	/* setup pins for I2C2 (for EEPROM, RTC) */
	imx_gpio_mode(MUX_CSPI2_MOSI_I2C2_SCL);
	imx_gpio_mode(MUX_CSPI2_MISO_I2C2_SCL);

	register_device(&cfi_dev);

	/*
	 * Create partitions that should be
	 * not touched by any regular user
	 */
#ifdef CONFIG_PARTITION
	dev_add_partition(&cfi_dev, 0x00000, 0x40000, PARTITION_FIXED, "self");	/* ourself */
	dev_add_partition(&cfi_dev, 0x40000, 0x20000, PARTITION_FIXED, "env");	/* environment */
#endif
	dev_protect(&cfi_dev, 0x20000, 0, 1);

	register_device(&sram_dev);
	register_device(&nand_dev);
	register_device(&network_dev);

	register_device(&sdram0_dev);
#ifndef CONFIG_PCM037_SDRAM_BANK1_NONE
	register_device(&sdram1_dev);
#endif
	armlinux_set_bootparams((void *)0x80000100);
	armlinux_set_architecture(MACH_TYPE_PCM037);

	return 0;
}

device_initcall(imx31_devices_init);

static struct device_d imx31_serial_device = {
	.name     = "imx_serial",
	.id       = "cs0",
	.map_base = IMX_UART1_BASE,
	.size     = 16 * 1024,
	.type     = DEVICE_TYPE_CONSOLE,
};

static int imx31_console_init(void)
{
	/* init gpios for serial port */
	imx_gpio_mode(MUX_RXD1_UART1_RXD_MUX);
	imx_gpio_mode(MUX_TXD1_UART1_TXD_MUX);
	imx_gpio_mode(MUX_RTS1_UART1_RTS_B);
	imx_gpio_mode(MUX_RTS1_UART1_CTS_B);

	register_device(&imx31_serial_device);
	return 0;
}

console_initcall(imx31_console_init);