[PATCH 1/3] mx51_3ds: Add support for the imx51 3-stack board

[s.hauer@pengutronix.de (Sascha Hauer)]

On Tue, Jul 13, 2010 at 09:02:39PM +0800, Jason Wang wrote:
> 3-stack is a reference board from Freescale for their i.MX51 SoC.
> 
> Add board definition, Kconfig and Makefile to enable Freescale 3-stack
> board.
> 
> Boot tested on a i.MX51 3-stack Rev2.0 board
> 
> Signed-off-by: Jason Wang <jason77.wang@gmail.com>
> ---
>  arch/arm/mach-mx5/Kconfig                       |    6 ++
>  arch/arm/mach-mx5/Makefile                      |    2 +-
>  arch/arm/mach-mx5/board-mx51_3ds.c              |  102 +++++++++++++++++++++++
>  arch/arm/plat-mxc/include/mach/board-mx51_3ds.h |   27 ++++++
>  4 files changed, 136 insertions(+), 1 deletions(-)
>  create mode 100644 arch/arm/mach-mx5/board-mx51_3ds.c
>  create mode 100644 arch/arm/plat-mxc/include/mach/board-mx51_3ds.h
> 
> diff --git a/arch/arm/mach-mx5/Kconfig b/arch/arm/mach-mx5/Kconfig
> index 1576d51..6ef3428 100644
> --- a/arch/arm/mach-mx5/Kconfig
> +++ b/arch/arm/mach-mx5/Kconfig
> @@ -15,4 +15,10 @@ config MACH_MX51_BABBAGE
>  	  u-boot. This includes specific configurations for the board and its
>  	  peripherals.
>  
> +config MACH_MX51_3DS
> +	bool "Support MX51PDK (3DS)"
> +	select MXC_DEBUG_BOARD
> +	help
> +	  Include support for MX51PDK (3DS) platform. This includes specific
> +	  configurations for the board and its peripherals.
>  endif
> diff --git a/arch/arm/mach-mx5/Makefile b/arch/arm/mach-mx5/Makefile
> index bf23f86..c757c59 100644
> --- a/arch/arm/mach-mx5/Makefile
> +++ b/arch/arm/mach-mx5/Makefile
> @@ -6,4 +6,4 @@
>  obj-y   := cpu.o mm.o clock-mx51.o devices.o
>  
>  obj-$(CONFIG_MACH_MX51_BABBAGE) += board-mx51_babbage.o
> -
> +obj-$(CONFIG_MACH_MX51_3DS) += board-mx51_3ds.o
> diff --git a/arch/arm/mach-mx5/board-mx51_3ds.c b/arch/arm/mach-mx5/board-mx51_3ds.c
> new file mode 100644
> index 0000000..b51da63
> --- /dev/null
> +++ b/arch/arm/mach-mx5/board-mx51_3ds.c
> @@ -0,0 +1,102 @@
> +/*
> + * Copyright 2008-2009 Freescale Semiconductor, Inc. All Rights Reserved.
> + * Copyright (C) 2010 Jason Wang <jason77.wang@gmail.com>
> + *
> + * The code contained herein is licensed under the GNU General Public
> + * License. You may obtain a copy of the GNU General Public License
> + * Version 2 or later at the following locations:
> + *
> + * http://www.opensource.org/licenses/gpl-license.html
> + * http://www.gnu.org/copyleft/gpl.html
> + */
> +
> +#include <linux/irq.h>
> +#include <linux/platform_device.h>
> +
> +#include <asm/mach-types.h>
> +#include <asm/mach/arch.h>
> +#include <asm/mach/time.h>
> +
> +#include <mach/hardware.h>
> +#include <mach/common.h>
> +#include <mach/iomux-mx51.h>
> +#include <mach/board-mx51_3ds.h>
> +#include <mach/imx-uart.h>
> +#include <mach/3ds_debugboard.h>
> +
> +#include "devices.h"
> +
> +static struct pad_desc mx51_3ds_pads[] = {
> +	/* UART1 */
> +	MX51_PAD_UART1_RXD__UART1_RXD,
> +	MX51_PAD_UART1_TXD__UART1_TXD,
> +	MX51_PAD_UART1_RTS__UART1_RTS,
> +	MX51_PAD_UART1_CTS__UART1_CTS,
> +
> +	/* UART2 */
> +	MX51_PAD_UART2_RXD__UART2_RXD,
> +	MX51_PAD_UART2_TXD__UART2_TXD,
> +	MX51_PAD_EIM_D25__UART2_CTS,
> +	MX51_PAD_EIM_D26__UART2_RTS,
> +
> +	/* UART3 */
> +	MX51_PAD_UART3_RXD__UART3_RXD,
> +	MX51_PAD_UART3_TXD__UART3_TXD,
> +	MX51_PAD_EIM_D24__UART3_CTS,
> +	MX51_PAD_EIM_D27__UART3_RTS,
> +
> +	/* CPLD PARENT IRQ PIN */
> +	MX51_PAD_GPIO_1_6__GPIO_1_6,
> +};
> +
> +/* Serial ports */
> +#if defined(CONFIG_SERIAL_IMX) || defined(CONFIG_SERIAL_IMX_MODULE)
> +static struct imxuart_platform_data uart_pdata = {
> +	.flags = IMXUART_HAVE_RTSCTS,
> +};
> +
> +static inline void mxc_init_imx_uart(void)
> +{
> +	mxc_register_device(&mxc_uart_device0, &uart_pdata);
> +	mxc_register_device(&mxc_uart_device1, &uart_pdata);
> +	mxc_register_device(&mxc_uart_device2, &uart_pdata);
> +}
> +#else /* !SERIAL_IMX */
> +static inline void mxc_init_imx_uart(void)
> +{
> +}
> +#endif /* SERIAL_IMX */
> +
> +/*
> + * Board specific initialization.
> + */
> +static void __init mxc_board_init(void)
> +{
> +	mxc_iomux_v3_setup_multiple_pads(mx51_3ds_pads,
> +					ARRAY_SIZE(mx51_3ds_pads));
> +	mxc_init_imx_uart();
> +
> +	if (mxc_expio_init(MX51_CS5_BASE_ADDR, EXPIO_PARENT_INT))
> +		printk(KERN_WARNING "Init of the debugboard failed, all "
> +				    "devices on the board are unusable.\n");
> +}
> +
> +static void __init mx51_3ds_timer_init(void)
> +{
> +	mx51_clocks_init(32768, 24000000, 22579200, 0);
> +}
> +
> +static struct sys_timer mxc_timer = {
> +	.init	= mx51_3ds_timer_init,
> +};
> +
> +MACHINE_START(MX51_3DS, "Freescale MX51 3-Stack Board")
> +	/* Maintainer: Freescale Semiconductor, Inc. */
> +	.phys_io = MX51_AIPS1_BASE_ADDR,
> +	.io_pg_offst = ((MX51_AIPS1_BASE_ADDR_VIRT) >> 18) & 0xfffc,
> +	.boot_params = PHYS_OFFSET + 0x100,
> +	.map_io = mx51_map_io,
> +	.init_irq = mx51_init_irq,
> +	.init_machine = mxc_board_init,
> +	.timer = &mxc_timer,
> +MACHINE_END
> diff --git a/arch/arm/plat-mxc/include/mach/board-mx51_3ds.h b/arch/arm/plat-mxc/include/mach/board-mx51_3ds.h
> new file mode 100644
> index 0000000..c2aa016
> --- /dev/null
> +++ b/arch/arm/plat-mxc/include/mach/board-mx51_3ds.h
> @@ -0,0 +1,27 @@
> +/*
> + * Copyright 2008-2009 Freescale Semiconductor, Inc. All Rights Reserved.
> + *
> + *
> + * The code contained herein is licensed under the GNU General Public
> + * License. You may obtain a copy of the GNU General Public License
> + * Version 2 or later at the following locations:
> + *
> + * http://www.opensource.org/licenses/gpl-license.html
> + * http://www.gnu.org/copyleft/gpl.html
> + */
> +
> +#ifndef __ASM_ARCH_MXC_BOARD_MX51_3DS_H__
> +#define __ASM_ARCH_MXC_BOARD_MX51_3DS_H__
> +
> +/*
> + * plat-mxc/include/mach/board-mx51_3ds.h
> + *
> + * This file contains all the board level configuration options.
> + *
> + * It currently hold the options defined for MX51 3Stack Platform.
> + *
> + */
> +
> +#define EXPIO_PARENT_INT	(MXC_INTERNAL_IRQS + GPIO_PORTA + 6)

Please don't add board header files for things only used in the board
file.

Sascha

> +
> +#endif	/* __ASM_ARCH_MXC_BOARD_MX51_3DS_H__ */
> -- 
> 1.5.6.5
> 
> 

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