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/*
* (C) Copyright 2012 Fadil Berisha, <fadil.r.berisha@gmail.com>
* based on falconwing.c & mx23-evk.c
*
* (C) Copyright 2010 Juergen Beisert - Pengutronix
* (C) Copyright 2011 Wolfram Sang - Pengutronix
*
* 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 <common.h>
#include <init.h>
#include <gpio.h>
#include <environment.h>
#include <envfs.h>
#include <errno.h>
#include <mci.h>
#include <asm/armlinux.h>
#include <usb/ehci.h>
#include <mach/usb.h>
#include <generated/mach-types.h>
#include <mach/imx-regs.h>
#include <mach/clock.h>
#include <mach/mci.h>
#include <mach/iomux.h>
static struct mxs_mci_platform_data mci_pdata = {
.caps = MMC_CAP_4_BIT_DATA | MMC_CAP_SD_HIGHSPEED | MMC_CAP_MMC_HIGHSPEED,
.voltages = MMC_VDD_32_33 | MMC_VDD_33_34, /* fixed to 3.3 V */
.f_min = 400000,
};
static const uint32_t pad_setup[] = {
/* debug port */
PWM1_DUART_TX | STRENGTH(S4MA), /* PWM0/DUART_TXD - U_DEBUG PIN 2 */
PWM0_DUART_RX | STRENGTH(S4MA), /* PWM0/DUART_RXD - U_DEBUG PIN 1 */
/* auart */
I2C_SDA_AUART1_RX | STRENGTH(S4MA),
I2C_CLK_AUART1_TX | STRENGTH(S4MA),
/* lcd */
LCD_D17 | STRENGTH(S12MA), /*PIN18/LCD_D17 - GPIO PIN 3 */
LCD_D16 | STRENGTH(S12MA),
LCD_D15 | STRENGTH(S12MA),
LCD_D14 | STRENGTH(S12MA),
LCD_D13 | STRENGTH(S12MA),
LCD_D12 | STRENGTH(S12MA),
LCD_D11 | STRENGTH(S12MA),
LCD_D10 | STRENGTH(S12MA),
LCD_D9 | STRENGTH(S12MA),
LCD_D8 | STRENGTH(S12MA),
LCD_D7 | STRENGTH(S12MA),
LCD_D6 | STRENGTH(S12MA),
LCD_D5 | STRENGTH(S12MA),
LCD_D4 | STRENGTH(S12MA),
LCD_D3 | STRENGTH(S12MA),
LCD_D2 | STRENGTH(S12MA), /* PIN3/LCD_D02 - GPIO PIN 31*/
LCD_D1 | STRENGTH(S12MA), /* PIN2/LCD_D01 - GPIO PIN 33*/
LCD_D0 | STRENGTH(S12MA), /* PIN1/LCD_D00 - GPIO PIN 35*/
LCD_CS, /* PIN26/LCD_CS - GPIO PIN 20*/
LCD_RS, /* PIN25/LCD_RS - GPIO PIN 18*/
LCD_WR, /* PIN24/LCD_WR - GPIO PIN 16*/
LCD_RESET, /* PIN23/LCD_DISP - GPIO PIN 14*/
LCD_ENABE | STRENGTH(S12MA), /* PIN22/LCD_EN/I2C_SCL - GPIO PIN 12*/
LCD_VSYNC | STRENGTH(S12MA), /* PIN21/LCD_HSYNC/I2C_SDA- GPIO PIN 10*/
LCD_HSYNC | STRENGTH(S12MA), /* PIN20/LCD_VSYNC - GPIO PIN 8*/
LCD_DOTCLOCK | STRENGTH(S12MA), /* PIN19/LCD_DOTCLK - GPIO PIN 6*/
/* SD card interface */
SSP1_DATA0 | PULLUP(1),
SSP1_DATA1 | PULLUP(1),
SSP1_DATA2 | PULLUP(1),
SSP1_DATA3 | PULLUP(1),
SSP1_SCK,
SSP1_CMD | PULLUP(1),
SSP1_DETECT | PULLUP(1),
/* led */
SSP1_DETECT_GPIO | GPIO_OUT | GPIO_VALUE(1),
/* gpio - USB hub LAN9512-JZX*/
GPMI_ALE_GPIO | GPIO_OUT | GPIO_VALUE(1),
};
static int imx23_olinuxino_mem_init(void)
{
arm_add_mem_device("ram0", IMX_MEMORY_BASE, 64 * 1024 * 1024);
return 0;
}
mem_initcall(imx23_olinuxino_mem_init);
static void olinuxino_init_usb(void)
{
imx23_usb_phy_enable();
add_generic_usb_ehci_device(DEVICE_ID_DYNAMIC, IMX_USB_BASE, NULL);
}
static int imx23_olinuxino_devices_init(void)
{
int i;
/* initizalize gpios */
for (i = 0; i < ARRAY_SIZE(pad_setup); i++)
imx_gpio_mode(pad_setup[i]);
armlinux_set_architecture(MACH_TYPE_IMX233_OLINUXINO);
add_generic_device("mxs_mci", DEVICE_ID_DYNAMIC, NULL, IMX_SSP1_BASE,
0x8000, IORESOURCE_MEM, &mci_pdata);
olinuxino_init_usb();
default_environment_path_set("/dev/disk0.1");
return 0;
}
device_initcall(imx23_olinuxino_devices_init);
static int imx23_olinuxino_console_init(void)
{
barebox_set_model("Olimex.ltd imx233-olinuxino");
barebox_set_hostname("imx233-olinuxino");
add_generic_device("stm_serial", 0, NULL, IMX_DBGUART_BASE, 8192,
IORESOURCE_MEM, NULL);
return 0;
}
console_initcall(imx23_olinuxino_console_init);
/** @page olinuxino Olimex.ltd's i.MX23 evaluation kit
This CPU card is based on an i.MX23 CPU. The card is shipped with:
- 64 MiB synchronous dynamic RAM (mobile DDR type)
Memory layout when @b barebox is running:
- 0x40000000 start of SDRAM
- 0x40000100 start of kernel's boot parameters
- below malloc area: stack area
- below barebox: malloc area
- 0x42000000 start of @b barebox
@section get_imx23_olinuxino_binary How to get the bootloader binary image:
Using the default configuration:
@verbatim
make ARCH=arm imx23_olinuxino_defconfig
@endverbatim
Build the bootloader binary image:
@verbatim
make ARCH=arm CROSS_COMPILE=armv5compiler
@endverbatim
@note replace the armv5compiler with your ARM v5 cross compiler.
@section imx233-olinuxino How to prepare an MCI card to boot
the imx233-olinuxino with barebox
- Create four primary partitions on the MCI card
- the first one for the bootlets (about 256 kiB)
- the second one for the persistent environment
(size is up to you, at least 256k)
- the third one for the kernel (2 MiB ... 4 MiB in size)
- the 4th one for the root filesystem which can fill the
rest of the available space
- Mark the first partition with the partition ID "53" and copy the bootlets
into this partition (currently not part of @b barebox!).
- @b barebox expect device tree blob file imx23-olinuxino.dtb
into directory env/oftree. At compile time, copy blob file into directory
arch/arm/boards/imx233-olinuxino/env/oftree/.
- Copy the default @b barebox environment into the second partition
(no filesystem required).
- Copy the kernel into the third partition (no filesystem required).
- Create the root filesystem in the 4th partition. You may copy an
image into this partition or you can do it in the classic way:
mkfs on it, mount it and copy all required data and programs into it.
*/
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