diff options
author | Uwe Kleine-König <u.kleine-koenig@pengutronix.de> | 2010-10-08 16:00:11 +0200 |
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committer | Sascha Hauer <s.hauer@pengutronix.de> | 2010-10-11 15:30:31 +0200 |
commit | 8a8d20600dce01553c8505b7c576f8d4307e4ba8 (patch) | |
tree | 465b61cd90efd7b5f1e4c29cbb023be2847dcf89 /arch/arm/plat-mxc | |
parent | 67520f3a896acb1635894fd25626f7fa7c91e61c (diff) |
ARM: imx: fix/define clocks and create devices for imx dma
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'arch/arm/plat-mxc')
-rw-r--r-- | arch/arm/plat-mxc/devices/Makefile | 1 | ||||
-rw-r--r-- | arch/arm/plat-mxc/devices/platform-imx-dma.c | 129 | ||||
-rw-r--r-- | arch/arm/plat-mxc/include/mach/mx51.h | 2 |
3 files changed, 131 insertions, 1 deletions
diff --git a/arch/arm/plat-mxc/devices/Makefile b/arch/arm/plat-mxc/devices/Makefile index da9676e80e8d..cd0bf756c3f8 100644 --- a/arch/arm/plat-mxc/devices/Makefile +++ b/arch/arm/plat-mxc/devices/Makefile @@ -1,5 +1,6 @@ obj-$(CONFIG_IMX_HAVE_PLATFORM_ESDHC) += platform-esdhc.o obj-$(CONFIG_IMX_HAVE_PLATFORM_FLEXCAN) += platform-flexcan.o +obj-y += platform-imx-dma.o obj-$(CONFIG_IMX_HAVE_PLATFORM_IMX_I2C) += platform-imx-i2c.o obj-$(CONFIG_IMX_HAVE_PLATFORM_IMX_SSI) += platform-imx-ssi.o obj-$(CONFIG_IMX_HAVE_PLATFORM_IMX_UART) += platform-imx-uart.o diff --git a/arch/arm/plat-mxc/devices/platform-imx-dma.c b/arch/arm/plat-mxc/devices/platform-imx-dma.c new file mode 100644 index 000000000000..02d989018059 --- /dev/null +++ b/arch/arm/plat-mxc/devices/platform-imx-dma.c @@ -0,0 +1,129 @@ +/* + * 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); diff --git a/arch/arm/plat-mxc/include/mach/mx51.h b/arch/arm/plat-mxc/include/mach/mx51.h index c99eeab6fe09..1906ee5a5497 100644 --- a/arch/arm/plat-mxc/include/mach/mx51.h +++ b/arch/arm/plat-mxc/include/mach/mx51.h @@ -285,7 +285,7 @@ #define MX51_MXC_INT_MMC_SDHC3 3 #define MX51_MXC_INT_MMC_SDHC4 4 #define MX51_MXC_INT_RESV5 5 -#define MX51_MXC_INT_SDMA 6 +#define MX51_INT_SDMA 6 #define MX51_MXC_INT_IOMUX 7 #define MX51_INT_NFC 8 #define MX51_MXC_INT_VPU 9 |