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/*
* Copyright (C) 2010 Pengutronix
* Uwe Kleine-Koenig <u.kleine-koenig@pengutronix.de>
*
* 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/compiler.h>
#include <linux/err.h>
#include <linux/init.h>
#include <mach/hardware.h>
#include <mach/devices-common.h>
#ifdef SDMA_IS_MERGED
#include <mach/sdma.h>
#else
struct sdma_platform_data {
int sdma_version;
char *cpu_name;
int to_version;
};
#endif
struct imx_imx_sdma_data {
resource_size_t iobase;
resource_size_t irq;
struct sdma_platform_data pdata;
};
#define imx_imx_sdma_data_entry_single(soc, _sdma_version, _cpu_name, _to_version)\
{ \
.iobase = soc ## _SDMA ## _BASE_ADDR, \
.irq = soc ## _INT_SDMA, \
.pdata = { \
.sdma_version = _sdma_version, \
.cpu_name = _cpu_name, \
.to_version = _to_version, \
}, \
}
#ifdef CONFIG_ARCH_MX25
const struct imx_imx_sdma_data imx25_imx_sdma_data __initconst =
imx_imx_sdma_data_entry_single(MX25, 1, "imx25", 0);
#endif /* ifdef CONFIG_ARCH_MX25 */
#ifdef CONFIG_ARCH_MX31
struct imx_imx_sdma_data imx31_imx_sdma_data __initdata =
imx_imx_sdma_data_entry_single(MX31, 1, "imx31", 0);
#endif /* ifdef CONFIG_ARCH_MX31 */
#ifdef CONFIG_ARCH_MX35
struct imx_imx_sdma_data imx35_imx_sdma_data __initdata =
imx_imx_sdma_data_entry_single(MX35, 2, "imx35", 0);
#endif /* ifdef CONFIG_ARCH_MX35 */
#ifdef CONFIG_ARCH_MX51
const struct imx_imx_sdma_data imx51_imx_sdma_data __initconst =
imx_imx_sdma_data_entry_single(MX51, 2, "imx51", 0);
#endif /* ifdef CONFIG_ARCH_MX51 */
static struct platform_device __init __maybe_unused *imx_add_imx_sdma(
const struct imx_imx_sdma_data *data)
{
struct resource res[] = {
{
.start = data->iobase,
.end = data->iobase + SZ_4K - 1,
.flags = IORESOURCE_MEM,
}, {
.start = data->irq,
.end = data->irq,
.flags = IORESOURCE_IRQ,
},
};
return imx_add_platform_device("imx-sdma", -1,
res, ARRAY_SIZE(res),
&data->pdata, sizeof(data->pdata));
}
static struct platform_device __init __maybe_unused *imx_add_imx_dma(void)
{
return imx_add_platform_device("imx-dma", -1, NULL, 0, NULL, 0);
}
static int __init imxXX_add_imx_dma(void)
{
struct platform_device *ret;
#if defined(CONFIG_SOC_IMX21) || defined(CONFIG_SOC_IMX27)
if (cpu_is_mx21() || cpu_is_mx27())
ret = imx_add_imx_dma();
else
#endif
#if defined(CONFIG_ARCH_MX25)
if (cpu_is_mx25())
ret = imx_add_imx_sdma(&imx25_imx_sdma_data);
else
#endif
#if defined(CONFIG_ARCH_MX31)
if (cpu_is_mx31()) {
imx31_imx_sdma_data.pdata.to_version = mx31_revision() >> 4;
ret = imx_add_imx_sdma(&imx31_imx_sdma_data);
} else
#endif
#if defined(CONFIG_ARCH_MX35)
if (cpu_is_mx35()) {
imx35_imx_sdma_data.pdata.to_version = mx35_revision() >> 4;
ret = imx_add_imx_sdma(&imx35_imx_sdma_data);
} else
#endif
#if defined(CONFIG_ARCH_MX51)
if (cpu_is_mx51())
ret = imx_add_imx_sdma(&imx51_imx_sdma_data);
else
#endif
ret = ERR_PTR(-ENODEV);
if (IS_ERR(ret))
return PTR_ERR(ret);
return 0;
}
arch_initcall(imxXX_add_imx_dma);
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