130 lines
3.1 KiB
C
130 lines
3.1 KiB
C
/*
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* Copyright (C) 2010 Pengutronix
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* Uwe Kleine-Koenig <u.kleine-koenig@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 <linux/compiler.h>
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#include <linux/err.h>
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#include <linux/init.h>
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#include <mach/hardware.h>
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#include <mach/devices-common.h>
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#ifdef SDMA_IS_MERGED
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#include <mach/sdma.h>
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#else
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struct sdma_platform_data {
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int sdma_version;
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char *cpu_name;
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int to_version;
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};
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#endif
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struct imx_imx_sdma_data {
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resource_size_t iobase;
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resource_size_t irq;
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struct sdma_platform_data pdata;
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};
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#define imx_imx_sdma_data_entry_single(soc, _sdma_version, _cpu_name, _to_version)\
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{ \
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.iobase = soc ## _SDMA ## _BASE_ADDR, \
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.irq = soc ## _INT_SDMA, \
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.pdata = { \
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.sdma_version = _sdma_version, \
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.cpu_name = _cpu_name, \
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.to_version = _to_version, \
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}, \
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}
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#ifdef CONFIG_SOC_IMX25
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const struct imx_imx_sdma_data imx25_imx_sdma_data __initconst =
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imx_imx_sdma_data_entry_single(MX25, 1, "imx25", 0);
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#endif /* ifdef CONFIG_SOC_IMX25 */
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#ifdef CONFIG_SOC_IMX31
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struct imx_imx_sdma_data imx31_imx_sdma_data __initdata =
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imx_imx_sdma_data_entry_single(MX31, 1, "imx31", 0);
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#endif /* ifdef CONFIG_SOC_IMX31 */
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#ifdef CONFIG_SOC_IMX35
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struct imx_imx_sdma_data imx35_imx_sdma_data __initdata =
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imx_imx_sdma_data_entry_single(MX35, 2, "imx35", 0);
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#endif /* ifdef CONFIG_SOC_IMX35 */
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#ifdef CONFIG_ARCH_MX51
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const struct imx_imx_sdma_data imx51_imx_sdma_data __initconst =
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imx_imx_sdma_data_entry_single(MX51, 2, "imx51", 0);
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#endif /* ifdef CONFIG_ARCH_MX51 */
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static struct platform_device __init __maybe_unused *imx_add_imx_sdma(
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const struct imx_imx_sdma_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_4K - 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 imx_add_platform_device("imx-sdma", -1,
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res, ARRAY_SIZE(res),
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&data->pdata, sizeof(data->pdata));
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}
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static struct platform_device __init __maybe_unused *imx_add_imx_dma(void)
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{
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return imx_add_platform_device("imx-dma", -1, NULL, 0, NULL, 0);
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}
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static int __init imxXX_add_imx_dma(void)
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{
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struct platform_device *ret;
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#if defined(CONFIG_SOC_IMX21) || defined(CONFIG_SOC_IMX27)
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if (cpu_is_mx21() || cpu_is_mx27())
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ret = imx_add_imx_dma();
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else
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#endif
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#if defined(CONFIG_SOC_IMX25)
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if (cpu_is_mx25())
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ret = imx_add_imx_sdma(&imx25_imx_sdma_data);
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else
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#endif
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#if defined(CONFIG_SOC_IMX31)
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if (cpu_is_mx31()) {
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imx31_imx_sdma_data.pdata.to_version = mx31_revision() >> 4;
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ret = imx_add_imx_sdma(&imx31_imx_sdma_data);
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} else
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#endif
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#if defined(CONFIG_SOC_IMX35)
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if (cpu_is_mx35()) {
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imx35_imx_sdma_data.pdata.to_version = mx35_revision() >> 4;
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ret = imx_add_imx_sdma(&imx35_imx_sdma_data);
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} else
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#endif
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#if defined(CONFIG_ARCH_MX51)
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if (cpu_is_mx51())
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ret = imx_add_imx_sdma(&imx51_imx_sdma_data);
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else
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#endif
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ret = ERR_PTR(-ENODEV);
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if (IS_ERR(ret))
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return PTR_ERR(ret);
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return 0;
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}
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arch_initcall(imxXX_add_imx_dma);
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