[PATCH v5 1/4] ARM: add GPMI support for imx23/imx28

Uwe Kleine-König u.kleine-koenig at pengutronix.de
Wed Apr 13 05:03:04 EDT 2011


On Wed, Apr 13, 2011 at 02:24:38PM +0800, Huang Shijie wrote:
> add the clock and iomux initialization for GPMI in the imx23 and imx28.
> and register the gpmi driver.
> 
> Signed-off-by: Huang Shijie <b32955 at freescale.com>
> ---
>  arch/arm/mach-mxs/Kconfig                       |    2 +
>  arch/arm/mach-mxs/clock-mx23.c                  |    3 +
>  arch/arm/mach-mxs/clock-mx28.c                  |    3 +
>  arch/arm/mach-mxs/devices-mx23.h                |    3 +
>  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-gpmi.c       |  134 +++++++++++++++++++++++
>  arch/arm/mach-mxs/include/mach/devices-common.h |    4 +
>  arch/arm/mach-mxs/include/mach/gpmi-nfc.h       |   65 +++++++++++
>  arch/arm/mach-mxs/mach-mx23evk.c                |   37 ++++++
>  arch/arm/mach-mxs/mach-mx28evk.c                |   37 ++++++
>  12 files changed, 295 insertions(+), 0 deletions(-)
>  create mode 100644 arch/arm/mach-mxs/devices/platform-gpmi.c
>  create mode 100644 arch/arm/mach-mxs/include/mach/gpmi-nfc.h
> 
> diff --git a/arch/arm/mach-mxs/Kconfig b/arch/arm/mach-mxs/Kconfig
> index 4f6f174..e034666 100644
> --- a/arch/arm/mach-mxs/Kconfig
> +++ b/arch/arm/mach-mxs/Kconfig
> @@ -22,6 +22,7 @@ config MACH_MX23EVK
>  	select SOC_IMX23
>  	select MXS_HAVE_AMBA_DUART
>  	select MXS_HAVE_PLATFORM_AUART
> +	select MXS_HAVE_PLATFORM_GPMI
>  	select MXS_HAVE_PLATFORM_MXSFB
>  	default y
>  	help
> @@ -35,6 +36,7 @@ config MACH_MX28EVK
>  	select MXS_HAVE_PLATFORM_AUART
>  	select MXS_HAVE_PLATFORM_FEC
>  	select MXS_HAVE_PLATFORM_FLEXCAN
> +	select MXS_HAVE_PLATFORM_GPMI
>  	select MXS_HAVE_PLATFORM_MXSFB
>  	select MXS_OCOTP
>  	default y
> diff --git a/arch/arm/mach-mxs/clock-mx23.c b/arch/arm/mach-mxs/clock-mx23.c
> index d133c7f..f3c9653 100644
> --- a/arch/arm/mach-mxs/clock-mx23.c
> +++ b/arch/arm/mach-mxs/clock-mx23.c
> @@ -29,6 +29,7 @@
>  #include <mach/mx23.h>
>  #include <mach/common.h>
>  #include <mach/clock.h>
> +#include <mach/gpmi-nfc.h>
This include is only needed to get GPMI_NFC_DRIVER_MX23? Then I suggest
to hardcode the clock name.

>  
>  #include "regs-clkctrl-mx23.h"
>  
> @@ -442,6 +443,7 @@ static struct clk_lookup lookups[] = {
>  	_REGISTER_CLOCK("duart", "apb_pclk", xbus_clk)
>  	/* for amba-pl011 driver */
>  	_REGISTER_CLOCK("duart", NULL, uart_clk)
> +	_REGISTER_CLOCK(GPMI_NFC_DRIVER_MX23, NULL, gpmi_clk)
>  	_REGISTER_CLOCK("mxs-auart.0", NULL, uart_clk)
>  	_REGISTER_CLOCK("rtc", NULL, rtc_clk)
>  	_REGISTER_CLOCK("mxs-dma-apbh", NULL, hbus_clk)
> @@ -533,6 +535,7 @@ int __init mx23_clocks_init(void)
>  	clk_enable(&xbus_clk);
>  	clk_enable(&emi_clk);
>  	clk_enable(&uart_clk);
> +	clk_enable(&gpmi_clk);
Doesn't the driver handle enabling the clock?
 
>  	clkdev_add_table(lookups, ARRAY_SIZE(lookups));
>  
> diff --git a/arch/arm/mach-mxs/clock-mx28.c b/arch/arm/mach-mxs/clock-mx28.c
> index 5e489a2..7868d42 100644
> --- a/arch/arm/mach-mxs/clock-mx28.c
> +++ b/arch/arm/mach-mxs/clock-mx28.c
> @@ -29,6 +29,7 @@
>  #include <mach/mx28.h>
>  #include <mach/common.h>
>  #include <mach/clock.h>
> +#include <mach/gpmi-nfc.h>
>  
>  #include "regs-clkctrl-mx28.h"
>  
> @@ -607,6 +608,7 @@ static struct clk_lookup lookups[] = {
>  	_REGISTER_CLOCK("duart", "apb_pclk", xbus_clk)
>  	/* for amba-pl011 driver */
>  	_REGISTER_CLOCK("duart", NULL, uart_clk)
> +	_REGISTER_CLOCK(GPMI_NFC_DRIVER_MX28, NULL, gpmi_clk)
>  	_REGISTER_CLOCK("imx28-fec.0", NULL, fec_clk)
>  	_REGISTER_CLOCK("imx28-fec.1", NULL, fec_clk)
>  	_REGISTER_CLOCK("mxs-auart.0", NULL, uart_clk)
> @@ -749,6 +751,7 @@ int __init mx28_clocks_init(void)
>  	clk_enable(&xbus_clk);
>  	clk_enable(&emi_clk);
>  	clk_enable(&uart_clk);
> +	clk_enable(&gpmi_clk);
ditto^2
 
>  	clk_set_parent(&lcdif_clk, &ref_pix_clk);
>  
> diff --git a/arch/arm/mach-mxs/devices-mx23.h b/arch/arm/mach-mxs/devices-mx23.h
> index c7e14f4..349fb1d 100644
> --- a/arch/arm/mach-mxs/devices-mx23.h
> +++ b/arch/arm/mach-mxs/devices-mx23.h
> @@ -16,6 +16,9 @@ extern const struct amba_device mx23_duart_device __initconst;
>  #define mx23_add_duart() \
>  	mxs_add_duart(&mx23_duart_device)
>  
> +extern const struct gpmi_nfc_platform_data gpmi_platform_data_imx23 __initconst;
> +#define mx23_add_gpmi() mxs_add_gpmi(&gpmi_platform_data_imx23)
> +
>  extern const struct mxs_auart_data mx23_auart_data[] __initconst;
>  #define mx23_add_auart(id)	mxs_add_auart(&mx23_auart_data[id])
>  #define mx23_add_auart0()		mx23_add_auart(0)
> diff --git a/arch/arm/mach-mxs/devices-mx28.h b/arch/arm/mach-mxs/devices-mx28.h
> index 9d08555..ed6427b 100644
> --- a/arch/arm/mach-mxs/devices-mx28.h
> +++ b/arch/arm/mach-mxs/devices-mx28.h
> @@ -16,6 +16,9 @@ extern const struct amba_device mx28_duart_device __initconst;
>  #define mx28_add_duart() \
>  	mxs_add_duart(&mx28_duart_device)
>  
> +extern const struct gpmi_nfc_platform_data gpmi_platform_data_imx28 __initconst;
> +#define	mx28_add_gpmi()	mxs_add_gpmi(&gpmi_platform_data_imx28)
> +
Can you please keep this file sorted?

>  extern const struct mxs_auart_data mx28_auart_data[] __initconst;
>  #define mx28_add_auart(id)	mxs_add_auart(&mx28_auart_data[id])
>  #define mx28_add_auart0()		mx28_add_auart(0)
> diff --git a/arch/arm/mach-mxs/devices/Kconfig b/arch/arm/mach-mxs/devices/Kconfig
> index 1451ad0..81e99ce 100644
> --- a/arch/arm/mach-mxs/devices/Kconfig
> +++ b/arch/arm/mach-mxs/devices/Kconfig
> @@ -5,6 +5,9 @@ config MXS_HAVE_AMBA_DUART
>  config MXS_HAVE_PLATFORM_AUART
>  	bool
>  
> +config MXS_HAVE_PLATFORM_GPMI
> +	bool
> +
>  config MXS_HAVE_PLATFORM_FEC
>  	bool
Can you please keep this file sorted?

>  
> diff --git a/arch/arm/mach-mxs/devices/Makefile b/arch/arm/mach-mxs/devices/Makefile
> index 0d9bea3..8a7c2c8 100644
> --- a/arch/arm/mach-mxs/devices/Makefile
> +++ b/arch/arm/mach-mxs/devices/Makefile
> @@ -2,6 +2,7 @@ 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_GPMI) += platform-gpmi.o
>  obj-$(CONFIG_MXS_HAVE_PLATFORM_FLEXCAN) += platform-flexcan.o
Can you please keep this file sorted?

>  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-gpmi.c b/arch/arm/mach-mxs/devices/platform-gpmi.c
> new file mode 100644
> index 0000000..74ebe22
> --- /dev/null
> +++ b/arch/arm/mach-mxs/devices/platform-gpmi.c
> @@ -0,0 +1,134 @@
> +/*
> + * Copyright (C) 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 as published by
> + * the Free Software Foundation; either version 2 of the License, or
> + * (at your option) any later version.
> + *
> + * This program is distributed in the hope that it will be useful,
> + * but WITHOUT ANY WARRANTY; without even the implied warranty of
> + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
> + * GNU General Public License for more details.
> + *
> + * You should have received a copy of the GNU General Public License along
> + * with this program; if not, write to the Free Software Foundation, Inc.,
> + * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
> + */
> +#include <asm/sizes.h>
> +#include <mach/mx23.h>
> +#include <mach/mx28.h>
> +#include <mach/gpmi-nfc.h>
> +#include <mach/devices-common.h>
> +
> +#ifdef CONFIG_SOC_IMX23
> +const struct gpmi_nfc_platform_data  gpmi_platform_data_imx23 __initconst = {
> +	.min_prop_delay_in_ns	= 5,
> +	.max_prop_delay_in_ns	= 9,
> +	.max_chip_count		= 1,
> +};
> +
> +const struct resource res_imx23[] __initconst = {
> +	{	/* GPMI */
> +		.start = MX23_GPMI_BASE_ADDR,
> +		.end   = MX23_GPMI_BASE_ADDR + SZ_8K - 1,
> +		.name  = GPMI_NFC_GPMI_REGS_ADDR_RES_NAME,
> +		.flags = IORESOURCE_MEM,
> +	}, {
> +		.start = MX23_INT_GPMI_ATTENTION,
> +		.end   = MX23_INT_GPMI_ATTENTION,
> +		.name  = GPMI_NFC_GPMI_INTERRUPT_RES_NAME,
> +		.flags = IORESOURCE_IRQ,
> +	}, {	/* BCH */
> +		.start = MX23_BCH_BASE_ADDR,
> +		.end   = MX23_BCH_BASE_ADDR + SZ_8K - 1,
> +		.name  = GPMI_NFC_BCH_REGS_ADDR_RES_NAME,
> +		.flags = IORESOURCE_MEM,
> +	}, {
> +		.start = MX23_INT_BCH,
> +		.end   = MX23_INT_BCH,
> +		.name  = GPMI_NFC_BCH_INTERRUPT_RES_NAME,
> +		.flags = IORESOURCE_IRQ,
> +	}, {	/* DMA */
> +		.start	= MX23_DMA_GPMI0,
> +		.end	= MX23_DMA_GPMI3,
> +		.name  = GPMI_NFC_DMA_CHANNELS_RES_NAME,
> +		.flags = IORESOURCE_DMA,
> +	}, {
> +		.start = MX23_INT_GPMI_DMA,
> +		.end   = MX23_INT_GPMI_DMA,
> +		.name  = GPMI_NFC_DMA_INTERRUPT_RES_NAME,
> +		.flags = IORESOURCE_IRQ,
> +	},
> +};
maybe use a macro to define this and res_imx28?

> +#endif
> +
> +#ifdef CONFIG_SOC_IMX28
> +const struct gpmi_nfc_platform_data  gpmi_platform_data_imx28 __initconst = {
> +	.min_prop_delay_in_ns	= 5,
> +	.max_prop_delay_in_ns	= 9,
> +	.max_chip_count		= 1,
> +};
> +
> +const struct resource res_imx28[] __initconst = {
> +	{	/* GPMI */
> +		.start = MX28_GPMI_BASE_ADDR,
> +		.end   = MX28_GPMI_BASE_ADDR + SZ_8K - 1,
> +		.name  = GPMI_NFC_GPMI_REGS_ADDR_RES_NAME,
> +		.flags = IORESOURCE_MEM,
> +	 }, {
> +		.start = MX28_INT_GPMI,
> +		.end   = MX28_INT_GPMI,
> +		.name  = GPMI_NFC_GPMI_INTERRUPT_RES_NAME,
> +		.flags = IORESOURCE_IRQ,
> +	}, {	/* BCH */
> +		.start = MX28_BCH_BASE_ADDR,
> +		.end   = MX28_BCH_BASE_ADDR + SZ_8K - 1,
> +		.name  = GPMI_NFC_BCH_REGS_ADDR_RES_NAME,
> +		.flags = IORESOURCE_MEM,
> +	 }, {
> +		.start = MX28_INT_BCH,
> +		.end   = MX28_INT_BCH,
> +		.name  = GPMI_NFC_BCH_INTERRUPT_RES_NAME,
> +		.flags = IORESOURCE_IRQ,
> +	 }, {	/* DMA */
> +		.start	= MX28_DMA_GPMI0,
> +		.end	= MX28_DMA_GPMI7,
> +		.name	= GPMI_NFC_DMA_CHANNELS_RES_NAME,
> +		.flags	= IORESOURCE_DMA,
> +	 }, {
> +		.start = MX28_INT_GPMI_DMA,
> +		.end   = MX28_INT_GPMI_DMA,
> +		.name  = GPMI_NFC_DMA_INTERRUPT_RES_NAME,
> +		.flags = IORESOURCE_IRQ,
> +	},
> +};
> +#endif
> +
> +struct platform_device *__init
> +mxs_add_gpmi(const struct gpmi_nfc_platform_data *data)
> +{
> +	const struct resource *res;
> +	int res_size;
> +	const char *name = NULL;
> +
> +#ifdef CONFIG_SOC_IMX23
> +	if (cpu_is_mx23()) {
You can save these cpu_is_mx23 calls by letting mxs23_add_gpmi pass
res_imx23 (with a better name) to mxs_add_gpmi as is done by the other
functions. (Or alternatively implement mxs23_add_gpmi as function.)

> +		res_size = ARRAY_SIZE(res_imx23);
> +		res = res_imx23;
> +		name = GPMI_NFC_DRIVER_MX23;
> +	}
> +#endif
> +
> +#ifdef CONFIG_SOC_IMX28
> +	if (cpu_is_mx28()) {
> +		res_size = ARRAY_SIZE(res_imx28);
> +		res = res_imx28;
> +		name = GPMI_NFC_DRIVER_MX28;
> +	}
> +#endif
> +
> +	return mxs_add_platform_device_dmamask(name, -1,
> +				res, res_size,
> +				data, sizeof(*data), DMA_BIT_MASK(32));
> +}
> diff --git a/arch/arm/mach-mxs/include/mach/devices-common.h b/arch/arm/mach-mxs/include/mach/devices-common.h
> index 71f2448..1f05503 100644
> --- a/arch/arm/mach-mxs/include/mach/devices-common.h
> +++ b/arch/arm/mach-mxs/include/mach/devices-common.h
> @@ -30,6 +30,10 @@ int __init mxs_add_amba_device(const struct amba_device *dev);
>  /* duart */
>  int __init mxs_add_duart(const struct amba_device *dev);
>  
> +/* GPMI */
> +#include <mach/gpmi-nfc.h>
> +struct platform_device *__init mxs_add_gpmi(
> +				const struct gpmi_nfc_platform_data *data);
>  /* auart */
>  struct mxs_auart_data {
>  	int id;
> diff --git a/arch/arm/mach-mxs/include/mach/gpmi-nfc.h b/arch/arm/mach-mxs/include/mach/gpmi-nfc.h
> new file mode 100644
> index 0000000..cf8e8c3
> --- /dev/null
> +++ b/arch/arm/mach-mxs/include/mach/gpmi-nfc.h
> @@ -0,0 +1,65 @@
> +/*
> + * Copyright (C) 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 as published by
> + * the Free Software Foundation; either version 2 of the License, or
> + * (at your option) any later version.
> + *
> + * This program is distributed in the hope that it will be useful,
> + * but WITHOUT ANY WARRANTY; without even the implied warranty of
> + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
> + * GNU General Public License for more details.
> + *
> + * You should have received a copy of the GNU General Public License along
> + * with this program; if not, write to the Free Software Foundation, Inc.,
> + * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
> + */
> +
> +#ifndef __INCLUDE_LINUX_DEVICE_H
> +#define __INCLUDE_LINUX_DEVICE_H
> +
> +#define GPMI_NFC_DRIVER_NAME	"gpmi-nfc"
> +#define GPMI_NFC_DRIVER_MX23	"gpmi-nfc-mx23"
> +#define GPMI_NFC_DRIVER_MX28	"gpmi-nfc-mx28"
> +#define GPMI_NFC_DRIVER_MX50	"gpmi-nfc-mx508"
I'd prefer "imx23-gpmi" et al here. Is the 8 in "gpmi-nfc-mx508"
intended?

> +
> +/* Resource names for the GPMI NFC driver. */
> +#define GPMI_NFC_GPMI_REGS_ADDR_RES_NAME  "GPMI NFC GPMI Registers"
> +#define GPMI_NFC_GPMI_INTERRUPT_RES_NAME  "GPMI NFC GPMI Interrupt"
> +#define GPMI_NFC_BCH_REGS_ADDR_RES_NAME   "GPMI NFC BCH Registers"
> +#define GPMI_NFC_BCH_INTERRUPT_RES_NAME   "GPMI NFC BCH Interrupt"
> +#define GPMI_NFC_DMA_CHANNELS_RES_NAME    "GPMI NFC DMA Channels"
> +#define GPMI_NFC_DMA_INTERRUPT_RES_NAME   "GPMI NFC DMA Interrupt"
> +
> +/**
> + * struct gpmi_nfc_platform_data - GPMI NFC driver platform data.
> + *
> + * This structure communicates platform-specific information to the GPMI NFC
> + * driver that can't be expressed as resources.
> + *
> + * @min_prop_delay_in_ns:    Minimum propagation delay of GPMI signals to and
> + *                           from the NAND Flash device, in nanoseconds.
> + * @max_prop_delay_in_ns:    Maximum propagation delay of GPMI signals to and
> + *                           from the NAND Flash device, in nanoseconds.
> + * @max_chip_count:          The maximum number of chips for which the driver
> + *                           should configure the hardware. This value most
> + *                           likely reflects the number of pins that are
> + *                           connected to a NAND Flash device. If this is
> + *                           greater than the SoC hardware can support, the
> + *                           driver will print a message and fail to initialize.
> + * @partitions:              An optional pointer to an array of partition
> + *                           descriptions.
> + * @partition_count:         The number of elements in the partitions array.
> + */
> +struct gpmi_nfc_platform_data {
> +	/* NAND Flash information. */
> +	unsigned int          min_prop_delay_in_ns;
> +	unsigned int          max_prop_delay_in_ns;
> +	unsigned int          max_chip_count;
> +
> +	/* soc */
> +	struct mtd_partition  *partitions;
> +	unsigned              partition_count;
> +};
> +#endif
> diff --git a/arch/arm/mach-mxs/mach-mx23evk.c b/arch/arm/mach-mxs/mach-mx23evk.c
> index a66994f..db715f9 100644
> --- a/arch/arm/mach-mxs/mach-mx23evk.c
> +++ b/arch/arm/mach-mxs/mach-mx23evk.c
> @@ -34,6 +34,42 @@ static const iomux_cfg_t mx23evk_pads[] __initconst = {
>  	MX23_PAD_PWM0__DUART_RX | MXS_PAD_CTRL,
>  	MX23_PAD_PWM1__DUART_TX | MXS_PAD_CTRL,
>  
> +	/* gpmi */
> +	MX23_PAD_GPMI_D00__GPMI_D00 |
> +		(MXS_PAD_4MA | MXS_PAD_3V3 | MXS_PAD_NOPULL),
> +	MX23_PAD_GPMI_D01__GPMI_D01 |
> +		(MXS_PAD_4MA | MXS_PAD_3V3 | MXS_PAD_NOPULL),
> +	MX23_PAD_GPMI_D02__GPMI_D02 |
> +		(MXS_PAD_4MA | MXS_PAD_3V3 | MXS_PAD_NOPULL),
> +	MX23_PAD_GPMI_D03__GPMI_D03 |
> +		(MXS_PAD_4MA | MXS_PAD_3V3 | MXS_PAD_NOPULL),
> +	MX23_PAD_GPMI_D04__GPMI_D04 |
> +		(MXS_PAD_4MA | MXS_PAD_3V3 | MXS_PAD_NOPULL),
> +	MX23_PAD_GPMI_D05__GPMI_D05 |
> +		(MXS_PAD_4MA | MXS_PAD_3V3 | MXS_PAD_NOPULL),
> +	MX23_PAD_GPMI_D06__GPMI_D06 |
> +		(MXS_PAD_4MA | MXS_PAD_3V3 | MXS_PAD_NOPULL),
> +	MX23_PAD_GPMI_D07__GPMI_D07 |
> +		(MXS_PAD_4MA | MXS_PAD_3V3 | MXS_PAD_NOPULL),
> +	MX23_PAD_GPMI_CLE__GPMI_CLE |
> +		(MXS_PAD_4MA | MXS_PAD_3V3 | MXS_PAD_NOPULL),
> +	MX23_PAD_GPMI_ALE__GPMI_ALE |
> +		(MXS_PAD_4MA | MXS_PAD_3V3 | MXS_PAD_NOPULL),
> +	MX23_PAD_GPMI_WPN__GPMI_WPN |
> +		(MXS_PAD_12MA | MXS_PAD_3V3 | MXS_PAD_NOPULL),
> +	MX23_PAD_GPMI_WRN__GPMI_WRN |
> +		(MXS_PAD_12MA | MXS_PAD_3V3 | MXS_PAD_NOPULL),
> +	MX23_PAD_GPMI_RDN__GPMI_RDN |
> +		(MXS_PAD_12MA | MXS_PAD_3V3 | MXS_PAD_NOPULL),
> +	MX23_PAD_GPMI_RDY0__GPMI_RDY0 |
> +		(MXS_PAD_4MA | MXS_PAD_3V3 | MXS_PAD_NOPULL),
> +	MX23_PAD_GPMI_RDY1__GPMI_RDY1 |
> +		(MXS_PAD_4MA | MXS_PAD_3V3 | MXS_PAD_NOPULL),
> +	MX23_PAD_GPMI_CE0N__GPMI_CE0N |
> +		(MXS_PAD_4MA | MXS_PAD_3V3 | MXS_PAD_NOPULL),
> +	MX23_PAD_GPMI_CE1N__GPMI_CE1N |
> +		(MXS_PAD_4MA | MXS_PAD_3V3 | MXS_PAD_NOPULL),
> +
>  	/* auart */
>  	MX23_PAD_AUART1_RX__AUART1_RX | MXS_PAD_CTRL,
>  	MX23_PAD_AUART1_TX__AUART1_TX | MXS_PAD_CTRL,
> @@ -108,6 +144,7 @@ static void __init mx23evk_init(void)
>  	mxs_iomux_setup_multiple_pads(mx23evk_pads, ARRAY_SIZE(mx23evk_pads));
>  
>  	mx23_add_duart();
> +	mx23_add_gpmi();
>  	mx23_add_auart0();
>  
>  	ret = gpio_request_one(MX23EVK_LCD_ENABLE, GPIOF_DIR_OUT, "lcd-enable");
IMHO adding the device to machines should be a seperate patch.

> diff --git a/arch/arm/mach-mxs/mach-mx28evk.c b/arch/arm/mach-mxs/mach-mx28evk.c
> index 08002d0..cf8ddcb 100644
> --- a/arch/arm/mach-mxs/mach-mx28evk.c
> +++ b/arch/arm/mach-mxs/mach-mx28evk.c
> @@ -39,6 +39,42 @@ static const iomux_cfg_t mx28evk_pads[] __initconst = {
>  	MX28_PAD_PWM0__DUART_RX | MXS_PAD_CTRL,
>  	MX28_PAD_PWM1__DUART_TX | MXS_PAD_CTRL,
>  
> +	/* gpmi */
> +	MX28_PAD_GPMI_D00__GPMI_D0 |
> +		(MXS_PAD_4MA | MXS_PAD_3V3 | MXS_PAD_NOPULL),
> +	MX28_PAD_GPMI_D01__GPMI_D1 |
> +		(MXS_PAD_4MA | MXS_PAD_3V3 | MXS_PAD_NOPULL),
> +	MX28_PAD_GPMI_D02__GPMI_D2 |
> +		(MXS_PAD_4MA | MXS_PAD_3V3 | MXS_PAD_NOPULL),
> +	MX28_PAD_GPMI_D03__GPMI_D3 |
> +		(MXS_PAD_4MA | MXS_PAD_3V3 | MXS_PAD_NOPULL),
> +	MX28_PAD_GPMI_D04__GPMI_D4 |
> +		(MXS_PAD_4MA | MXS_PAD_3V3 | MXS_PAD_NOPULL),
> +	MX28_PAD_GPMI_D05__GPMI_D5 |
> +		(MXS_PAD_4MA | MXS_PAD_3V3 | MXS_PAD_NOPULL),
> +	MX28_PAD_GPMI_D06__GPMI_D6 |
> +		(MXS_PAD_4MA | MXS_PAD_3V3 | MXS_PAD_NOPULL),
> +	MX28_PAD_GPMI_D07__GPMI_D7 |
> +		(MXS_PAD_4MA | MXS_PAD_3V3 | MXS_PAD_NOPULL),
> +	MX28_PAD_GPMI_CE0N__GPMI_CE0N |
> +		(MXS_PAD_4MA | MXS_PAD_3V3 | MXS_PAD_NOPULL),
> +	MX28_PAD_GPMI_CE1N__GPMI_CE1N |
> +		(MXS_PAD_4MA | MXS_PAD_3V3 | MXS_PAD_NOPULL),
> +	MX28_PAD_GPMI_RDY0__GPMI_READY0 |
> +		(MXS_PAD_4MA | MXS_PAD_3V3 | MXS_PAD_NOPULL),
> +	MX28_PAD_GPMI_RDY1__GPMI_READY1 |
> +		(MXS_PAD_4MA | MXS_PAD_3V3 | MXS_PAD_NOPULL),
> +	MX28_PAD_GPMI_RDN__GPMI_RDN |
> +		(MXS_PAD_12MA | MXS_PAD_3V3 | MXS_PAD_NOPULL),
> +	MX28_PAD_GPMI_WRN__GPMI_WRN |
> +		(MXS_PAD_12MA | MXS_PAD_3V3 | MXS_PAD_NOPULL),
> +	MX28_PAD_GPMI_ALE__GPMI_ALE |
> +		(MXS_PAD_4MA | MXS_PAD_3V3 | MXS_PAD_NOPULL),
> +	MX28_PAD_GPMI_CLE__GPMI_CLE |
> +		(MXS_PAD_4MA | MXS_PAD_3V3 | MXS_PAD_NOPULL),
> +	MX28_PAD_GPMI_RESETN__GPMI_RESETN |
> +		(MXS_PAD_12MA | MXS_PAD_3V3 | MXS_PAD_NOPULL),
> +
>  	/* auart0 */
>  	MX28_PAD_AUART0_RX__AUART0_RX | MXS_PAD_CTRL,
>  	MX28_PAD_AUART0_TX__AUART0_TX | MXS_PAD_CTRL,
> @@ -265,6 +301,7 @@ static void __init mx28evk_init(void)
>  	mxs_iomux_setup_multiple_pads(mx28evk_pads, ARRAY_SIZE(mx28evk_pads));
>  
>  	mx28_add_duart();
> +	mx28_add_gpmi();
>  	mx28_add_auart0();
>  	mx28_add_auart3();

Best regards
Uwe

-- 
Pengutronix e.K.                           | Uwe Kleine-König            |
Industrial Linux Solutions                 | http://www.pengutronix.de/  |



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