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Message-ID: <20100203111003.GP6130@pengutronix.de>
Date: Wed, 3 Feb 2010 12:10:03 +0100
From: Sascha Hauer <s.hauer@...gutronix.de>
To: Amit Kucheria <amit.kucheria@...onical.com>
Cc: List Linux Kernel <linux-kernel@...r.kernel.org>,
linux-arm-kernel@...ts.infradead.org, linux@....linux.org.uk,
valentin.longchamp@...l.ch, daniel@...aq.de,
grant.likely@...retlab.ca, Dinh.Nguyen@...escale.com,
r.herring@...escale.com, bryan.wu@...onical.com
Subject: Re: [PATCHv2 07/11] mxc: Add support for the Babbage board
On Tue, Feb 02, 2010 at 09:16:29PM -0800, Amit Kucheria wrote:
> Babbage is a reference board from Freescale for their i.MX51 SoC.
>
> Boot tested on a Babbage2.5 board
>
> Signed-off-by: Amit Kucheria <amit.kucheria@...onical.com>
> ---
> arch/arm/mach-mx5/Kconfig | 6 ++
> arch/arm/mach-mx5/Makefile | 2 +
> arch/arm/mach-mx5/board-mx51_babbage.c | 99 +++++++++++++++++++++++++++++++
> arch/arm/plat-mxc/include/mach/common.h | 1 +
> 4 files changed, 108 insertions(+), 0 deletions(-)
> create mode 100644 arch/arm/mach-mx5/board-mx51_babbage.c
>
> diff --git a/arch/arm/mach-mx5/Kconfig b/arch/arm/mach-mx5/Kconfig
> index ccd96fd..80a749c 100644
> --- a/arch/arm/mach-mx5/Kconfig
> +++ b/arch/arm/mach-mx5/Kconfig
> @@ -8,4 +8,10 @@ config ARCH_MX51
>
> comment "MX5 platforms:"
>
> +config MACH_MX51_BABBAGE
> + bool "Support MX51 BABBAGE platforms"
> + help
> + Include support for MX51 Babbage 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 d74ce4f..e4cf91f 100644
> --- a/arch/arm/mach-mx5/Makefile
> +++ b/arch/arm/mach-mx5/Makefile
> @@ -5,3 +5,5 @@
> # Object file lists.
> obj-y := cpu.o mm.o clock.o devices.o
>
> +obj-$(CONFIG_MACH_MX51_BABBAGE) += board-mx51_babbage.o
> +
> diff --git a/arch/arm/mach-mx5/board-mx51_babbage.c b/arch/arm/mach-mx5/board-mx51_babbage.c
Uwe started to rename the board files on other i.MX platforms to
mach-*.c. Can you do the same please?
> new file mode 100644
> index 0000000..6cd0e14
> --- /dev/null
> +++ b/arch/arm/mach-mx5/board-mx51_babbage.c
> @@ -0,0 +1,99 @@
> +/*
> + * Copyright 2009 Freescale Semiconductor, Inc. All Rights Reserved.
> + * Copyright (C) 2009-2010 Amit Kucheria <amit.kucheria@...onical.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/init.h>
> +#include <linux/platform_device.h>
> +
> +#include <mach/common.h>
> +#include <mach/hardware.h>
> +#include <mach/imx-uart.h>
> +#include <mach/iomux-mx51.h>
> +
> +#include <asm/irq.h>
> +#include <asm/setup.h>
> +#include <asm/mach-types.h>
> +#include <asm/mach/arch.h>
> +#include <asm/mach/time.h>
> +
> +#include "crm_regs.h"
Is this needed?
> +#include "devices.h"
> +
> +static struct platform_device *devices[] __initdata = {
> + &mxc_fec_device,
> +};
> +
> +static struct pad_desc mx51babbage_pads[] = {
> + /* UART1 */
> + MX51_BABBAGE_PAD_UART1_RXD__UART1_RXD,
> + MX51_BABBAGE_PAD_UART1_TXD__UART1_TXD,
> + MX51_BABBAGE_PAD_UART1_RTS__UART1_RTS,
> + MX51_BABBAGE_PAD_UART1_CTS__UART1_CTS,
> +
> + /* UART2 */
> + MX51_BABBAGE_PAD_UART2_RXD__UART2_RXD,
> + MX51_BABBAGE_PAD_UART2_TXD__UART2_TXD,
> +
> + /* UART3 */
> + MX51_BABBAGE_PAD_EIM_D25__UART3_RXD,
> + MX51_BABBAGE_PAD_EIM_D26__UART3_TXD,
> + MX51_BABBAGE_PAD_EIM_D27__UART3_RTS,
> + MX51_BABBAGE_PAD_EIM_D24__UART3_CTS,
> +};
> +
> +/* 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(mx51babbage_pads,
> + ARRAY_SIZE(mx51babbage_pads));
> + mxc_init_imx_uart();
> + platform_add_devices(devices, ARRAY_SIZE(devices));
> +}
> +
> +static void __init mx51_babbage_timer_init(void)
> +{
> + mx51_clocks_init(32768, 24000000, 22579200, 24576000);
> +}
> +
> +static struct sys_timer mxc_timer = {
> + .init = mx51_babbage_timer_init,
> +};
> +
> +MACHINE_START(MX51_BABBAGE, "Freescale MX51 Babbage Board")
> + /* Maintainer: Amit Kucheria <amit.kucheria@...onical.com> */
> + .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/common.h b/arch/arm/plat-mxc/include/mach/common.h
> index 0a25576..33d4496 100644
> --- a/arch/arm/plat-mxc/include/mach/common.h
> +++ b/arch/arm/plat-mxc/include/mach/common.h
> @@ -21,6 +21,7 @@ extern void mx27_map_io(void);
> extern void mx31_map_io(void);
> extern void mx35_map_io(void);
> extern void mx51_map_io(void);
> +extern void mx51_babbage_io_init(void);
Is this function used anywhere? I hope not...
Sascha
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