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Add the i.MX23 based Chumby platform (WIP) 

The so called "chumby one" aka falconwing is an i.MX23 based platform.

Note: This is work in progress. Use with care.

Signed-off-by: Juergen Beisert <jbe@pengutronix.de>
This commit is contained in:
Juergen Beisert 2010-10-11 10:58:47 +02:00 committed by Sascha Hauer
parent 7648762e0c
commit 5c2248228a
7 changed files with 329 additions and 0 deletions
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1
Documentation/boards.dox
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@ -15,6 +15,7 @@ ARM type:
@li @subpage imx27ads
@li @subpage the3stack
@li @subpage mx23_evk
@li @subpage chumbyone
@li @subpage scb9328
@li @subpage netx
@li @subpage dev_omap_arch

1
arch/arm/Makefile
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@ -82,6 +82,7 @@ board-$(CONFIG_MACH_PM9263) := pm9263
board-$(CONFIG_MACH_SCB9328) := scb9328
board-$(CONFIG_MACH_NESO) := guf-neso
board-$(CONFIG_MACH_MX23EVK) := freescale-mx23-evk
board-$(CONFIG_MACH_CHUMBY) := chumby_falconwing
machdirs := $(patsubst %,arch/arm/mach-%/,$(machine-y))

1
arch/arm/boards/chumby_falconwing/Makefile Normal file
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@ -0,0 +1 @@
obj-y = falconwing.o

21
arch/arm/boards/chumby_falconwing/config.h Normal file
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@ -0,0 +1,21 @@
/*
* 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
*/
#ifndef _CONFIG_H_
# define _CONFIG_H_
#endif /* _CONFIG_H_ */

271
arch/arm/boards/chumby_falconwing/falconwing.c Normal file
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@ -0,0 +1,271 @@
/*
* (C) Copyright 2010 Juergen Beisert - 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.
*
* 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
*/
#include <common.h>
#include <init.h>
#include <gpio.h>
#include <environment.h>
#include <asm/armlinux.h>
#include <asm/io.h>
#include <generated/mach-types.h>
#include <mach/imx-regs.h>
static struct memory_platform_data ram_pdata = {
.name = "ram0",
.flags = DEVFS_RDWR,
};
static struct device_d sdram_dev = {
.name = "mem",
.map_base = IMX_MEMORY_BASE,
.size = 64 * 1024 * 1024,
.platform_data = &ram_pdata,
};
static const uint32_t pad_setup[] = {
/* may be not required as already done by the bootlet code */
#if 0
/* SDRAM data signals */
EMI_D15 | STRENGTH(0) | VE_2_5V,
EMI_D14 | STRENGTH(0) | VE_2_5V,
EMI_D13 | STRENGTH(0) | VE_2_5V,
EMI_D12 | STRENGTH(0) | VE_2_5V,
EMI_D11 | STRENGTH(0) | VE_2_5V,
EMI_D10 | STRENGTH(0) | VE_2_5V,
EMI_D9 | STRENGTH(0) | VE_2_5V,
EMI_D8 | STRENGTH(0) | VE_2_5V,
EMI_D7 | STRENGTH(0) | VE_2_5V,
EMI_D6 | STRENGTH(0) | VE_2_5V,
EMI_D5 | STRENGTH(0) | VE_2_5V,
EMI_D4 | STRENGTH(0) | VE_2_5V,
EMI_D3 | STRENGTH(0) | VE_2_5V,
EMI_D2 | STRENGTH(0) | VE_2_5V,
EMI_D1 | STRENGTH(0) | VE_2_5V,
EMI_D0 | STRENGTH(0) | VE_2_5V,
/* SDRAM data control signals */
EMI_DQM0 | STRENGTH(0) | VE_2_5V, /* LDM */
EMI_DQM1 | STRENGTH(0) | VE_2_5V, /* UDM */
/* SDRAM address signals */
EMI_A0 | STRENGTH(0) | VE_2_5V,
EMI_A1 | STRENGTH(0) | VE_2_5V,
EMI_A2 | STRENGTH(0) | VE_2_5V,
EMI_A3 | STRENGTH(0) | VE_2_5V,
EMI_A4 | STRENGTH(0) | VE_2_5V,
EMI_A5 | STRENGTH(0) | VE_2_5V,
EMI_A6 | STRENGTH(0) | VE_2_5V,
EMI_A7 | STRENGTH(0) | VE_2_5V,
EMI_A8 | STRENGTH(0) | VE_2_5V,
EMI_A9 | STRENGTH(0) | VE_2_5V,
EMI_A10 | STRENGTH(0) | VE_2_5V,
EMI_A11 | STRENGTH(0) | VE_2_5V,
EMI_A12 | STRENGTH(0) | VE_2_5V,
/* SDRAM address control signals */
EMI_RASN | STRENGTH(0) | VE_2_5V,
EMI_CASN | STRENGTH(0) | VE_2_5V,
/* SDRAM control signals */
EMI_CE0N | STRENGTH(0) | VE_2_5V,
EMI_CLK | STRENGTH(0) | VE_2_5V,
EMI_CLKN | STRENGTH(0) | VE_2_5V,
EMI_CKE | STRENGTH(0) | VE_2_5V,
EMI_WEN | STRENGTH(0) | VE_2_5V,
EMI_BA0 | STRENGTH(0) | VE_2_5V,
EMI_BA1 | STRENGTH(0) | VE_2_5V,
EMI_DQS0 | STRENGTH(0) | VE_2_5V,
EMI_DQS1 | STRENGTH(0) | VE_2_5V,
#endif
/* debug port */
PWM1_DUART_TX | STRENGTH(S4MA), /* strength is TBD */
PWM0_DUART_RX | STRENGTH(S4MA), /* strength is TBD */
/* lcd */
LCD_VSYNC, /* kernel tries with 12 mA for all LCD related pins */
LCD_HSYNC,
LCD_ENABE,
LCD_DOTCLOCK,
LCD_D17,
LCD_D16,
LCD_D15,
LCD_D14,
LCD_D13,
LCD_D12,
LCD_D11,
LCD_D10,
LCD_D9,
LCD_D8,
LCD_D7,
LCD_D6,
LCD_D5,
LCD_D4,
LCD_D3,
LCD_D2,
LCD_D1,
LCD_D0,
/* LCD usage currently unknown */
LCD_CS, /* used as SPI SS */
LCD_RS, /* used as SPI CLK */
LCD_RESET,
LCD_WR, /* used as SPI MOSI */
/* I2C to the MMA7455L, KXTE9, AT24C08 (DCID), AT24C128B (ID EEPROM) and QN8005B */
I2C_SDA,
I2C_CLK,
/* Rotary decoder (external pull ups) */
ROTARYA,
ROTARYB,
/* the chumby bend (external pull up) */
PWM4_GPIO | GPIO_IN,
/* backlight control, to be controled by PWM, here we only want to disable it */
PWM2_GPIO | GPIO_OUT | GPIO_VALUE(0), /* 1 enables, 0 disables the backlight */
/* send a reset signal to the USB hub */
AUART1_TX_GPIO | GPIO_OUT | GPIO_VALUE(0),
/* USB power disable (FIXME what level to be switched off) */
AUART1_CTS_GPIO | GPIO_OUT | GPIO_VALUE(0),
/* Detecting if a display is connected (0 = display attached) (external pull up) */
AUART1_RTS_GPIO | GPIO_IN,
/* disable the audio amplifier */
GPMI_D08_GPIO | GPIO_OUT | GPIO_VALUE(0),
/* Head Phone detection (FIXME what level when plugged in) (external pull up) */
GPMI_D11_GPIO | GPIO_IN,
#if 0
/* Enable the local 5V (FIXME what to do when the bootloader runs) */
GPMI_D12_GPIO | GPIO_OUT | GPIO_VALUE(1),
#endif
/* not used pins */
GPMI_D09_GPIO | GPIO_IN | PULLUP(1),
GPMI_D10_GPIO | GPIO_IN | PULLUP(1),
GPMI_D13_GPIO | GPIO_IN | PULLUP(1),
/* unknown. Not connected to anything than test pin J113 */
GPMI_D14_GPIO | GPIO_IN | PULLUP(1),
/* unknown. Not connected to anything than test pin J114 */
GPMI_D15_GPIO | GPIO_IN | PULLUP(1),
/* NAND controller (Note: There is no NAND device on the board) */
GPMI_D00 | PULLUP(1),
GPMI_D01 | PULLUP(1),
GPMI_D02 | PULLUP(1),
GPMI_D03 | PULLUP(1),
GPMI_D04 | PULLUP(1),
GPMI_D05 | PULLUP(1),
GPMI_D06 | PULLUP(1),
GPMI_D07 | PULLUP(1),
GPMI_CE0N,
GPMI_RDY0 | PULLUP(1),
GPMI_WRN, /* kernel tries here with 12 mA */
GPMI_RDN, /* kernel tries here with 12 mA */
GPMI_WPM, /* kernel tries here with 12 mA */
GPMI_CLE,
GPMI_ALE,
/* SD card interface */
SSP1_DATA0 | PULLUP(1), /* available at J201 */
SSP1_DATA1 | PULLUP(1), /* available at J200 */
SSP1_DATA2 | PULLUP(1), /* available at J205 */
SSP1_DATA3 | PULLUP(1), /* available at J204 */
SSP1_SCK, /* available at J202 */
SSP1_CMD | PULLUP(1), /* available at J203 */
SSP1_DETECT | PULLUP(1), /* only connected to test pin J115 */
/* other not used pins */
GPMI_CE1N_GPIO | GPIO_IN | PULLUP(1),
GPMI_CE2N_GPIO | GPIO_IN | PULLUP(1),
GPMI_RDY1_GPIO | GPIO_IN | PULLUP(1),
GPMI_RDY2_GPIO | GPIO_IN | PULLUP(1),
GPMI_RDY3_GPIO | GPIO_IN | PULLUP(1),
};
static int falconwing_devices_init(void)
{
int i;
/* initizalize gpios */
for (i = 0; i < ARRAY_SIZE(pad_setup); i++)
imx_gpio_mode(pad_setup[i]);
register_device(&sdram_dev);
armlinux_add_dram(&sdram_dev);
armlinux_set_bootparams((void*)(sdram_dev.map_base + 0x100));
armlinux_set_architecture(MACH_TYPE_CHUMBY);
return 0;
}
device_initcall(falconwing_devices_init);
static struct device_d falconwing_serial_device = {
.name = "stm_serial",
.map_base = IMX_DBGUART_BASE,
.size = 8192,
};
static int falconwing_console_init(void)
{
return register_device(&falconwing_serial_device);
}
console_initcall(falconwing_console_init);
/** @page chumbyone Chumby Industrie's Falconwing
This device is also known as "chumby one" (http://www.chumby.com/)
This CPU card is based on a Freescale i.MX23 CPU. The card is shipped with:
- 64 MiB synchronous dynamic RAM (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_falconwing_binary How to get the bootloader binary image:
Using the default configuration:
@verbatim
make ARCH=arm chumbyone_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.
*/

25
arch/arm/configs/chumbyone_defconfig Normal file
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@ -0,0 +1,25 @@
CONFIG_ARCH_STM=y
CONFIG_MACH_CHUMBY=y
CONFIG_AEABI=y
CONFIG_ARM_OPTIMZED_STRING_FUNCTIONS=y
CONFIG_BROKEN=y
CONFIG_LONGHELP=y
CONFIG_CMDLINE_EDITING=y
CONFIG_AUTO_COMPLETE=y
CONFIG_PARTITION=y
# CONFIG_DEFAULT_ENVIRONMENT is not set
CONFIG_DEBUG_INFO=y
CONFIG_CMD_EDIT=y
CONFIG_CMD_SLEEP=y
CONFIG_CMD_SAVEENV=y
CONFIG_CMD_LOADENV=y
CONFIG_CMD_EXPORT=y
CONFIG_CMD_PRINTENV=y
CONFIG_CMD_READLINE=y
CONFIG_CMD_ECHO_E=y
CONFIG_CMD_MTEST=y
CONFIG_CMD_MTEST_ALTERNATIVE=y
CONFIG_CMD_RESET=y
CONFIG_CMD_TIMEOUT=y
CONFIG_CMD_PARTITION=y
# CONFIG_SPI is not set

9
arch/arm/mach-stm/Kconfig
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@ -3,9 +3,11 @@ if ARCH_STM
config ARCH_TEXT_BASE
hex
default 0x41000000 if MACH_MX23EVK
default 0x42000000 if MACH_CHUMBY
config BOARDINFO
default "Freescale i.MX23-EVK" if MACH_MX23EVK
default "Chumby Falconwing" if MACH_CHUMBY
comment "SigmaTel/Freescale i.MX System-on-Chip"
@ -28,6 +30,13 @@ config MACH_MX23EVK
help
Say Y here if you are using the Freescale i.MX23-EVK board
config MACH_CHUMBY
bool "Chumby Falconwing"
select HAVE_MMU
help
Say Y here if you are using the "chumby one" aka falconwing from
Chumby Industries
endchoice
endif