diff options
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/mach-mxs/clock-mx23.c | 3 | ||||
| -rw-r--r-- | arch/arm/mach-mxs/clock-mx28.c | 4 | ||||
| -rw-r--r-- | arch/arm/mach-mxs/devices/Makefile | 1 | ||||
| -rw-r--r-- | arch/arm/mach-mxs/devices/platform-dma.c | 49 |
4 files changed, 54 insertions, 3 deletions
diff --git a/arch/arm/mach-mxs/clock-mx23.c b/arch/arm/mach-mxs/clock-mx23.c index 2415b33d79c..d133c7f3094 100644 --- a/arch/arm/mach-mxs/clock-mx23.c +++ b/arch/arm/mach-mxs/clock-mx23.c @@ -444,7 +444,8 @@ static struct clk_lookup lookups[] = { _REGISTER_CLOCK("duart", NULL, uart_clk) _REGISTER_CLOCK("mxs-auart.0", NULL, uart_clk) _REGISTER_CLOCK("rtc", NULL, rtc_clk) - _REGISTER_CLOCK(NULL, "hclk", hbus_clk) + _REGISTER_CLOCK("mxs-dma-apbh", NULL, hbus_clk) + _REGISTER_CLOCK("mxs-dma-apbx", NULL, xbus_clk) _REGISTER_CLOCK(NULL, "usb", usb_clk) _REGISTER_CLOCK(NULL, "audio", audio_clk) _REGISTER_CLOCK("mxs-pwm.0", NULL, pwm_clk) diff --git a/arch/arm/mach-mxs/clock-mx28.c b/arch/arm/mach-mxs/clock-mx28.c index 82770568845..a350f957601 100644 --- a/arch/arm/mach-mxs/clock-mx28.c +++ b/arch/arm/mach-mxs/clock-mx28.c @@ -616,8 +616,8 @@ static struct clk_lookup lookups[] = { _REGISTER_CLOCK("mxs-auart.4", NULL, uart_clk) _REGISTER_CLOCK("rtc", NULL, rtc_clk) _REGISTER_CLOCK("pll2", NULL, pll2_clk) - _REGISTER_CLOCK(NULL, "hclk", hbus_clk) - _REGISTER_CLOCK(NULL, "xclk", xbus_clk) + _REGISTER_CLOCK("mxs-dma-apbh", NULL, hbus_clk) + _REGISTER_CLOCK("mxs-dma-apbx", NULL, xbus_clk) _REGISTER_CLOCK("flexcan.0", NULL, can0_clk) _REGISTER_CLOCK("flexcan.1", NULL, can1_clk) _REGISTER_CLOCK(NULL, "usb0", usb0_clk) diff --git a/arch/arm/mach-mxs/devices/Makefile b/arch/arm/mach-mxs/devices/Makefile index 39bd77348a4..0d9bea30b0a 100644 --- a/arch/arm/mach-mxs/devices/Makefile +++ b/arch/arm/mach-mxs/devices/Makefile @@ -1,5 +1,6 @@ obj-$(CONFIG_MXS_HAVE_AMBA_DUART) += amba-duart.o obj-$(CONFIG_MXS_HAVE_PLATFORM_AUART) += platform-auart.o +obj-y += platform-dma.o obj-$(CONFIG_MXS_HAVE_PLATFORM_FEC) += platform-fec.o obj-$(CONFIG_MXS_HAVE_PLATFORM_FLEXCAN) += platform-flexcan.o obj-$(CONFIG_MXS_HAVE_PLATFORM_MXS_I2C) += platform-mxs-i2c.o diff --git a/arch/arm/mach-mxs/devices/platform-dma.c b/arch/arm/mach-mxs/devices/platform-dma.c new file mode 100644 index 00000000000..295c4424d5d --- /dev/null +++ b/arch/arm/mach-mxs/devices/platform-dma.c @@ -0,0 +1,49 @@ +/* + * Copyright 2011 Freescale Semiconductor, Inc. All Rights Reserved. + * + * 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/mx23.h> +#include <mach/mx28.h> +#include <mach/devices-common.h> + +static struct platform_device *__init mxs_add_dma(const char *devid, + resource_size_t base) +{ + struct resource res[] = { + { + .start = base, + .end = base + SZ_8K - 1, + .flags = IORESOURCE_MEM, + } + }; + + return mxs_add_platform_device_dmamask(devid, -1, + res, ARRAY_SIZE(res), NULL, 0, + DMA_BIT_MASK(32)); +} + +static int __init mxs_add_mxs_dma(void) +{ + char *apbh = "mxs-dma-apbh"; + char *apbx = "mxs-dma-apbx"; + + if (cpu_is_mx23()) { + mxs_add_dma(apbh, MX23_APBH_DMA_BASE_ADDR); + mxs_add_dma(apbx, MX23_APBX_DMA_BASE_ADDR); + } + + if (cpu_is_mx28()) { + mxs_add_dma(apbh, MX28_APBH_DMA_BASE_ADDR); + mxs_add_dma(apbx, MX28_APBX_DMA_BASE_ADDR); + } + + return 0; +} +arch_initcall(mxs_add_mxs_dma); |