edca314f27
i.MX23 Reference Manaul starts auart index from 1 than 0. Changing the index to start from 0 requires corresponding changes on base address, irq, and iomux definitions, and will probably confuse people who reads codes and hardware documents together. This patch introduced the field 'hwid' to distinguish the driver id and controller id. These two ids are different on mx23 while identical on mx28. Signed-off-by: Shawn Guo <shawn.guo@freescale.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
64 lines
1.6 KiB
C
64 lines
1.6 KiB
C
/*
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* Copyright (C) 2010 Pengutronix
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* Sascha Hauer <s.hauer@pengutronix.de>
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*
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* This program is free software; you can redistribute it and/or modify it under
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* the terms of the GNU General Public License version 2 as published by the
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* Free Software Foundation.
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*/
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#include <asm/sizes.h>
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#include <mach/mx23.h>
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#include <mach/mx28.h>
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#include <mach/devices-common.h>
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#define mxs_auart_data_entry_single(soc, _id, hwid) \
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{ \
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.id = _id, \
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.iobase = soc ## _AUART ## hwid ## _BASE_ADDR, \
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.irq = soc ## _INT_AUART ## hwid, \
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}
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#define mxs_auart_data_entry(soc, _id, hwid) \
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[_id] = mxs_auart_data_entry_single(soc, _id, hwid)
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#ifdef CONFIG_SOC_IMX23
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const struct mxs_auart_data mx23_auart_data[] __initconst = {
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#define mx23_auart_data_entry(_id, hwid) \
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mxs_auart_data_entry(MX23, _id, hwid)
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mx23_auart_data_entry(0, 1),
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mx23_auart_data_entry(1, 2),
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};
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#endif
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#ifdef CONFIG_SOC_IMX28
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const struct mxs_auart_data mx28_auart_data[] __initconst = {
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#define mx28_auart_data_entry(_id) \
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mxs_auart_data_entry(MX28, _id, _id)
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mx28_auart_data_entry(0),
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mx28_auart_data_entry(1),
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mx28_auart_data_entry(2),
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mx28_auart_data_entry(3),
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mx28_auart_data_entry(4),
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};
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#endif
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struct platform_device *__init mxs_add_auart(
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const struct mxs_auart_data *data)
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{
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struct resource res[] = {
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{
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.start = data->iobase,
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.end = data->iobase + SZ_8K - 1,
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.flags = IORESOURCE_MEM,
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}, {
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.start = data->irq,
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.end = data->irq,
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.flags = IORESOURCE_IRQ,
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},
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};
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return mxs_add_platform_device_dmamask("mxs-auart", data->id,
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res, ARRAY_SIZE(res), NULL, 0,
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DMA_BIT_MASK(32));
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}
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