RE: [PATCH v3 1/3] OMAP3:zoom2: Add support for OMAP3 Zoom2 board

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Tony 

>-----Original Message-----
>From: Tony Lindgren [mailto:tony@xxxxxxxxxxx]
>Hi,
>
>Few comments below.
>
>* Mikkel Christensen <mlc@xxxxxx> [090515 14:17]:
>> This patch creates the minimal OMAP3 Zoom2 board support.
>>
>> Signed-off-by: Mikkel Christensen <mlc@xxxxxx>
>> Signed-off-by: Vikram Pandita <vikram.pandita@xxxxxx>
>> ---
>>  arch/arm/mach-omap2/board-zoom2-debugboard.c |  161 ++++++++++++++++++++++++++
>>  arch/arm/mach-omap2/board-zoom2.c            |  107 +++++++++++++++++
>>  2 files changed, 268 insertions(+), 0 deletions(-)
>>  create mode 100644 arch/arm/mach-omap2/board-zoom2-debugboard.c
>>  create mode 100644 arch/arm/mach-omap2/board-zoom2.c

<snip>
>>
>> +
>> +	zoom2_init_smsc911x();
>> +	zoom2_init_quaduart();
>> +	return platform_add_devices(zoom2_devices, ARRAY_SIZE(zoom2_devices));
>> +}
>> +arch_initcall(omap_zoom2_debugboard_init);
>
>Please just move all the related functions to board-zoom2.c. I don't see any
>reason to have a separate file for the debugboard features. The runtime detection
>should do the trick.

Two reasons for keeping a separate debug board.
a) debug board is detachable in h/w and hence we thought its better to keep the s/w also that way
The quart chip on debug bard is a quard-uart and can support 4 different console outputs.
All those we thought of adding in future.

b) we took reference from board-rx51-peripherals.c wherein some parts of the board file can be moved out to a new file

If you still think we need to merge, then let us know. 
We are open to suggestions/changes.

>
>Also, the arch_initcall() above is wrong, it runs for all the boards and
>platforms compiled in even if they are not zoom2 boards.
>
>Other than, looks OK to me, so we might be able to get this into mainline
>this merge window.
>
>Regards,
>
>Tony



>
>
>> diff --git a/arch/arm/mach-omap2/board-zoom2.c b/arch/arm/mach-omap2/board-zoom2.c
>> new file mode 100644
>> index 0000000..5a656b3
>> --- /dev/null
>> +++ b/arch/arm/mach-omap2/board-zoom2.c
>> @@ -0,0 +1,107 @@
>> +/*
>> + * Copyright (C) 2009 Texas Instruments Inc.
>> + * Mikkel Christensen <mlc@xxxxxx>
>> + *
>> + * Modified from mach-omap2/board-ldp.c
>> + *
>> + * This program is free software; you can redistribute it and/or modify
>> + * it under the terms of the GNU General Public License version 2 as
>> + * published by the Free Software Foundation.
>> + */
>> +
>> +#include <linux/kernel.h>
>> +#include <linux/init.h>
>> +#include <linux/platform_device.h>
>> +#include <linux/i2c/twl4030.h>
>> +
>> +#include <asm/mach-types.h>
>> +#include <asm/mach/arch.h>
>> +
>> +#include <mach/gpio.h>
>> +#include <mach/common.h>
>> +#include <mach/usb.h>
>> +
>> +#include "mmc-twl4030.h"
>> +
>> +static void __init omap_zoom2_init_irq(void)
>> +{
>> +	omap2_init_common_hw(NULL);
>> +	omap_init_irq();
>> +	omap_gpio_init();
>> +}
>> +
>> +static struct omap_uart_config zoom2_uart_config __initdata = {
>> +	.enabled_uarts	= ((1 << 0) | (1 << 1) | (1 << 2)),
>> +};
>> +
>> +static struct omap_board_config_kernel zoom2_config[] __initdata = {
>> +	{ OMAP_TAG_UART,	&zoom2_uart_config },
>> +};
>> +
>> +static struct twl4030_gpio_platform_data zoom2_gpio_data = {
>> +	.gpio_base	= OMAP_MAX_GPIO_LINES,
>> +	.irq_base	= TWL4030_GPIO_IRQ_BASE,
>> +	.irq_end	= TWL4030_GPIO_IRQ_END,
>> +};
>> +
>> +static struct twl4030_platform_data zoom2_twldata = {
>> +	.irq_base	= TWL4030_IRQ_BASE,
>> +	.irq_end	= TWL4030_IRQ_END,
>> +
>> +	/* platform_data for children goes here */
>> +	.gpio		= &zoom2_gpio_data,
>> +};
>> +
>> +static struct i2c_board_info __initdata zoom2_i2c_boardinfo[] = {
>> +	{
>> +		I2C_BOARD_INFO("twl4030", 0x48),
>> +		.flags = I2C_CLIENT_WAKE,
>> +		.irq = INT_34XX_SYS_NIRQ,
>> +		.platform_data = &zoom2_twldata,
>> +	},
>> +};
>> +
>> +static int __init omap_i2c_init(void)
>> +{
>> +	omap_register_i2c_bus(1, 2600, zoom2_i2c_boardinfo,
>> +			ARRAY_SIZE(zoom2_i2c_boardinfo));
>> +	omap_register_i2c_bus(2, 400, NULL, 0);
>> +	omap_register_i2c_bus(3, 400, NULL, 0);
>> +	return 0;
>> +}
>> +
>> +static struct twl4030_hsmmc_info mmc[] __initdata = {
>> +	{
>> +		.mmc		= 1,
>> +		.wires		= 4,
>> +		.gpio_cd	= -EINVAL,
>> +		.gpio_wp	= -EINVAL,
>> +	},
>> +	{}	/* Terminator */
>> +};
>> +
>> +static void __init omap_zoom2_init(void)
>> +{
>> +	omap_i2c_init();
>> +	omap_board_config = zoom2_config;
>> +	omap_board_config_size = ARRAY_SIZE(zoom2_config);
>> +	omap_serial_init();
>> +	twl4030_mmc_init(mmc);
>> +	usb_musb_init();
>> +}
>> +
>> +static void __init omap_zoom2_map_io(void)
>> +{
>> +	omap2_set_globals_343x();
>> +	omap2_map_common_io();
>> +}
>> +
>> +MACHINE_START(OMAP_ZOOM2, "OMAP Zoom2 board")
>> +	.phys_io	= 0x48000000,
>> +	.io_pg_offst	= ((0xd8000000) >> 18) & 0xfffc,
>> +	.boot_params	= 0x80000100,
>> +	.map_io		= omap_zoom2_map_io,
>> +	.init_irq	= omap_zoom2_init_irq,
>> +	.init_machine	= omap_zoom2_init,
>> +	.timer		= &omap_timer,
>> +MACHINE_END
>> --
>> 1.5.4.3
>>
>> --
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