From 30feed37f21e00655475d8bf17bcea02221e53d2 Mon Sep 17 00:00:00 2001 From: Wolfram Sang Date: Mon, 28 Feb 2011 17:40:04 +0100 Subject: [PATCH] arm: mxs: add i2c-devices for mx28 MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit Signed-off-by: Wolfram Sang Acked-by: Uwe Kleine-König Signed-off-by: Sascha Hauer --- arch/arm/mach-mxs/devices-mx28.h | 3 ++ arch/arm/mach-mxs/devices/Kconfig | 3 ++ arch/arm/mach-mxs/devices/Makefile | 1 + arch/arm/mach-mxs/devices/platform-mxs-i2c.c | 51 +++++++++++++++++++ .../mach-mxs/include/mach/devices-common.h | 9 ++++ 5 files changed, 67 insertions(+) create mode 100644 arch/arm/mach-mxs/devices/platform-mxs-i2c.c diff --git a/arch/arm/mach-mxs/devices-mx28.h b/arch/arm/mach-mxs/devices-mx28.h index 69d19ea19d4d..a9eecdc7e227 100644 --- a/arch/arm/mach-mxs/devices-mx28.h +++ b/arch/arm/mach-mxs/devices-mx28.h @@ -33,4 +33,7 @@ extern const struct mxs_flexcan_data mx28_flexcan_data[] __initconst; #define mx28_add_flexcan0(pdata) mx28_add_flexcan(0, pdata) #define mx28_add_flexcan1(pdata) mx28_add_flexcan(1, pdata) +extern const struct mxs_i2c_data mx28_mxs_i2c_data[] __initconst; +#define mx28_add_mxs_i2c(id) mxs_add_mxs_i2c(&mx28_mxs_i2c_data[id]) + #define mx28_add_mxs_pwm(id) mxs_add_mxs_pwm(MX28_PWM_BASE_ADDR, id) diff --git a/arch/arm/mach-mxs/devices/Kconfig b/arch/arm/mach-mxs/devices/Kconfig index 3aeec246e746..a878915063ed 100644 --- a/arch/arm/mach-mxs/devices/Kconfig +++ b/arch/arm/mach-mxs/devices/Kconfig @@ -12,5 +12,8 @@ config MXS_HAVE_PLATFORM_FLEXCAN select HAVE_CAN_FLEXCAN if CAN bool +config MXS_HAVE_PLATFORM_MXS_I2C + bool + config MXS_HAVE_PLATFORM_MXS_PWM bool diff --git a/arch/arm/mach-mxs/devices/Makefile b/arch/arm/mach-mxs/devices/Makefile index 978310fcafd6..345b8399b80e 100644 --- a/arch/arm/mach-mxs/devices/Makefile +++ b/arch/arm/mach-mxs/devices/Makefile @@ -2,4 +2,5 @@ obj-$(CONFIG_MXS_HAVE_AMBA_DUART) += amba-duart.o obj-$(CONFIG_MXS_HAVE_PLATFORM_AUART) += platform-auart.o obj-$(CONFIG_MXS_HAVE_PLATFORM_FEC) += platform-fec.o obj-$(CONFIG_MXS_HAVE_PLATFORM_FLEXCAN) += platform-flexcan.o +obj-$(CONFIG_MXS_HAVE_PLATFORM_MXS_I2C) += platform-mxs-i2c.o obj-$(CONFIG_MXS_HAVE_PLATFORM_MXS_PWM) += platform-mxs-pwm.o diff --git a/arch/arm/mach-mxs/devices/platform-mxs-i2c.c b/arch/arm/mach-mxs/devices/platform-mxs-i2c.c new file mode 100644 index 000000000000..eab3a06836d6 --- /dev/null +++ b/arch/arm/mach-mxs/devices/platform-mxs-i2c.c @@ -0,0 +1,51 @@ +/* + * Copyright (C) 2011 Pengutronix + * Wolfram Sang + * + * 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 +#include +#include + +#define mxs_i2c_data_entry_single(soc, _id) \ + { \ + .id = _id, \ + .iobase = soc ## _I2C ## _id ## _BASE_ADDR, \ + .errirq = soc ## _INT_I2C ## _id ## _ERROR, \ + .dmairq = soc ## _INT_I2C ## _id ## _DMA, \ + } + +#define mxs_i2c_data_entry(soc, _id) \ + [_id] = mxs_i2c_data_entry_single(soc, _id) + +#ifdef CONFIG_SOC_IMX28 +const struct mxs_i2c_data mx28_mxs_i2c_data[] __initconst = { + mxs_i2c_data_entry(MX28, 0), + mxs_i2c_data_entry(MX28, 1), +}; +#endif + +struct platform_device *__init mxs_add_mxs_i2c(const struct mxs_i2c_data *data) +{ + struct resource res[] = { + { + .start = data->iobase, + .end = data->iobase + SZ_8K - 1, + .flags = IORESOURCE_MEM, + }, { + .start = data->errirq, + .end = data->errirq, + .flags = IORESOURCE_IRQ, + }, { + .start = data->dmairq, + .end = data->dmairq, + .flags = IORESOURCE_IRQ, + }, + }; + + return mxs_add_platform_device("mxs-i2c", data->id, res, + ARRAY_SIZE(res), NULL, 0); +} diff --git a/arch/arm/mach-mxs/include/mach/devices-common.h b/arch/arm/mach-mxs/include/mach/devices-common.h index d460d3045555..71f24484b044 100644 --- a/arch/arm/mach-mxs/include/mach/devices-common.h +++ b/arch/arm/mach-mxs/include/mach/devices-common.h @@ -64,6 +64,15 @@ struct platform_device *__init mxs_add_flexcan( const struct mxs_flexcan_data *data, const struct flexcan_platform_data *pdata); +/* i2c */ +struct mxs_i2c_data { + int id; + resource_size_t iobase; + resource_size_t errirq; + resource_size_t dmairq; +}; +struct platform_device * __init mxs_add_mxs_i2c(const struct mxs_i2c_data *data); + /* pwm */ struct platform_device *__init mxs_add_mxs_pwm( resource_size_t iobase, int id); -- 2.20.1