[PATCH V2 2/3] ARM: mxs: add GPMI device for imx23

Huang Shijie b32955 at freescale.com
Mon Apr 18 06:43:47 EDT 2011


add the gpmi device for imx23.

Signed-off-by: Huang Shijie <b32955 at freescale.com>
---
 arch/arm/mach-mxs/clock-mx23.c                  |    1 +
 arch/arm/mach-mxs/devices-mx23.h                |    3 +
 arch/arm/mach-mxs/devices/Kconfig               |    3 +
 arch/arm/mach-mxs/devices/Makefile              |    1 +
 arch/arm/mach-mxs/devices/platform-gpmi.c       |   71 +++++++++++++++++++++++
 arch/arm/mach-mxs/include/mach/devices-common.h |   10 +++
 arch/arm/mach-mxs/mach-mx23evk.c                |   28 +++++++++
 7 files changed, 117 insertions(+), 0 deletions(-)
 create mode 100644 arch/arm/mach-mxs/devices/platform-gpmi.c

diff --git a/arch/arm/mach-mxs/clock-mx23.c b/arch/arm/mach-mxs/clock-mx23.c
index d133c7f..81d54bf 100644
--- a/arch/arm/mach-mxs/clock-mx23.c
+++ b/arch/arm/mach-mxs/clock-mx23.c
@@ -454,6 +454,7 @@ static struct clk_lookup lookups[] = {
 	_REGISTER_CLOCK("mxs-pwm.3", NULL, pwm_clk)
 	_REGISTER_CLOCK("mxs-pwm.4", NULL, pwm_clk)
 	_REGISTER_CLOCK("imx23-fb", NULL, lcdif_clk)
+	_REGISTER_CLOCK("imx23-gpmi-nfc", NULL, gpmi_clk)
 };
 
 static int clk_misc_init(void)
diff --git a/arch/arm/mach-mxs/devices-mx23.h b/arch/arm/mach-mxs/devices-mx23.h
index c7e14f4..48d4766 100644
--- a/arch/arm/mach-mxs/devices-mx23.h
+++ b/arch/arm/mach-mxs/devices-mx23.h
@@ -21,6 +21,9 @@ extern const struct mxs_auart_data mx23_auart_data[] __initconst;
 #define mx23_add_auart0()		mx23_add_auart(0)
 #define mx23_add_auart1()		mx23_add_auart(1)
 
+extern const struct mxs_gpmi_data mx23_gpmi_data __initconst;
+#define mx23_add_gpmi_nfc(pdata)	mxs_add_gpmi_nfc(pdata, &mx23_gpmi_data)
+
 #define mx23_add_mxs_pwm(id)		mxs_add_mxs_pwm(MX23_PWM_BASE_ADDR, id)
 
 struct platform_device *__init mx23_add_mxsfb(
diff --git a/arch/arm/mach-mxs/devices/Kconfig b/arch/arm/mach-mxs/devices/Kconfig
index 1451ad0..072c8e5 100644
--- a/arch/arm/mach-mxs/devices/Kconfig
+++ b/arch/arm/mach-mxs/devices/Kconfig
@@ -12,6 +12,9 @@ config MXS_HAVE_PLATFORM_FLEXCAN
 	select HAVE_CAN_FLEXCAN if CAN
 	bool
 
+config MXS_HAVE_PLATFORM_GPMI_NFC
+	bool
+
 config MXS_HAVE_PLATFORM_MXS_I2C
 	bool
 
diff --git a/arch/arm/mach-mxs/devices/Makefile b/arch/arm/mach-mxs/devices/Makefile
index 0d9bea3..7735e45 100644
--- a/arch/arm/mach-mxs/devices/Makefile
+++ b/arch/arm/mach-mxs/devices/Makefile
@@ -3,6 +3,7 @@ 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_GPMI_NFC) += platform-gpmi.o
 obj-$(CONFIG_MXS_HAVE_PLATFORM_MXS_I2C) += platform-mxs-i2c.o
 obj-$(CONFIG_MXS_HAVE_PLATFORM_MXS_PWM) += platform-mxs-pwm.o
 obj-$(CONFIG_MXS_HAVE_PLATFORM_MXSFB) += platform-mxsfb.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..3c6c968
--- /dev/null
+++ b/arch/arm/mach-mxs/devices/platform-gpmi.c
@@ -0,0 +1,71 @@
+/*
+ * 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/devices-common.h>
+
+#define RES_MEM(soc, _id, _s, _n)			\
+	{						\
+		.start = soc ##_## _id,			\
+		.end   = soc ##_## _id + (_s) - 1,	\
+		.name  = (_n),				\
+		.flags = IORESOURCE_MEM,		\
+	}
+
+#define RES_IRQ(soc, _id, _n)			\
+	{					\
+		.start = soc ##_## _id,		\
+		.end   = soc ##_## _id,		\
+		.name  = (_n),			\
+		.flags = IORESOURCE_IRQ,	\
+	}
+
+#define RES_DMA(soc, _i_s, _i_e, _n)		\
+	{					\
+		.start = soc ##_## _i_s,	\
+		.end   = soc ##_## _i_e,	\
+		.name  = (_n),			\
+		.flags = IORESOURCE_DMA,	\
+	}
+
+#ifdef CONFIG_SOC_IMX23
+const struct mxs_gpmi_data mx23_gpmi_data __initconst = {
+	.devid = "imx23-gpmi-nfc",
+	.res = {
+	/* GPMI */
+	RES_MEM(MX23, GPMI_BASE_ADDR, SZ_8K, GPMI_NFC_GPMI_REGS_ADDR_RES_NAME),
+	RES_IRQ(MX23, INT_GPMI_ATTENTION, GPMI_NFC_GPMI_INTERRUPT_RES_NAME),
+	/* BCH */
+	RES_MEM(MX23, BCH_BASE_ADDR, SZ_8K, GPMI_NFC_BCH_REGS_ADDR_RES_NAME),
+	RES_IRQ(MX23, INT_BCH, GPMI_NFC_BCH_INTERRUPT_RES_NAME),
+	/* DMA */
+	RES_DMA(MX23, DMA_GPMI0, DMA_GPMI3, GPMI_NFC_DMA_CHANNELS_RES_NAME),
+	RES_IRQ(MX23, INT_GPMI_DMA, GPMI_NFC_DMA_INTERRUPT_RES_NAME),
+	},
+};
+#endif
+
+struct platform_device *__init
+mxs_add_gpmi_nfc(const struct gpmi_nfc_platform_data *pdata,
+		const struct mxs_gpmi_data *data)
+{
+	return mxs_add_platform_device_dmamask(data->devid, -1,
+				data->res, RES_SIZE,
+				pdata, sizeof(*pdata), 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..fc59c05 100644
--- a/arch/arm/mach-mxs/include/mach/devices-common.h
+++ b/arch/arm/mach-mxs/include/mach/devices-common.h
@@ -64,6 +64,16 @@ struct platform_device *__init mxs_add_flexcan(
 		const struct mxs_flexcan_data *data,
 		const struct flexcan_platform_data *pdata);
 
+/* gpmi */
+#include <mach/gpmi-nfc.h>
+struct mxs_gpmi_data {
+	const char *devid;
+	const struct resource res[RES_SIZE];
+};
+struct platform_device *__init
+mxs_add_gpmi_nfc(const struct gpmi_nfc_platform_data *pdata,
+		const struct mxs_gpmi_data *data);
+
 /* i2c */
 struct mxs_i2c_data {
 	int id;
diff --git a/arch/arm/mach-mxs/mach-mx23evk.c b/arch/arm/mach-mxs/mach-mx23evk.c
index a66994f..666e0f8 100644
--- a/arch/arm/mach-mxs/mach-mx23evk.c
+++ b/arch/arm/mach-mxs/mach-mx23evk.c
@@ -40,6 +40,26 @@ static const iomux_cfg_t mx23evk_pads[] __initconst = {
 	MX23_PAD_AUART1_CTS__AUART1_CTS | MXS_PAD_CTRL,
 	MX23_PAD_AUART1_RTS__AUART1_RTS | MXS_PAD_CTRL,
 
+#define MXS_PAD_GPMI	(MXS_PAD_12MA | MXS_PAD_3V3 | MXS_PAD_NOPULL)
+	/* gpmi */
+	MX23_PAD_GPMI_D00__GPMI_D00 | MXS_PAD_CTRL,
+	MX23_PAD_GPMI_D01__GPMI_D01 | MXS_PAD_CTRL,
+	MX23_PAD_GPMI_D02__GPMI_D02 | MXS_PAD_CTRL,
+	MX23_PAD_GPMI_D03__GPMI_D03 | MXS_PAD_CTRL,
+	MX23_PAD_GPMI_D04__GPMI_D04 | MXS_PAD_CTRL,
+	MX23_PAD_GPMI_D05__GPMI_D05 | MXS_PAD_CTRL,
+	MX23_PAD_GPMI_D06__GPMI_D06 | MXS_PAD_CTRL,
+	MX23_PAD_GPMI_D07__GPMI_D07 | MXS_PAD_CTRL,
+	MX23_PAD_GPMI_CLE__GPMI_CLE | MXS_PAD_CTRL,
+	MX23_PAD_GPMI_ALE__GPMI_ALE | MXS_PAD_CTRL,
+	MX23_PAD_GPMI_WPN__GPMI_WPN | MXS_PAD_GPMI,
+	MX23_PAD_GPMI_WRN__GPMI_WRN | MXS_PAD_GPMI,
+	MX23_PAD_GPMI_RDN__GPMI_RDN | MXS_PAD_GPMI,
+	MX23_PAD_GPMI_RDY0__GPMI_RDY0 | MXS_PAD_CTRL,
+	MX23_PAD_GPMI_RDY1__GPMI_RDY1 | MXS_PAD_CTRL,
+	MX23_PAD_GPMI_CE0N__GPMI_CE0N | MXS_PAD_CTRL,
+	MX23_PAD_GPMI_CE1N__GPMI_CE1N | MXS_PAD_CTRL,
+
 	/* mxsfb (lcdif) */
 	MX23_PAD_LCD_D00__LCD_D00 | MXS_PAD_CTRL,
 	MX23_PAD_LCD_D01__LCD_D01 | MXS_PAD_CTRL,
@@ -75,6 +95,13 @@ static const iomux_cfg_t mx23evk_pads[] __initconst = {
 	MX23_PAD_PWM2__GPIO_1_28 | MXS_PAD_CTRL,
 };
 
+/* gpmi */
+static const struct gpmi_nfc_platform_data  mx23evk_gpmi_pdata __initconst = {
+	.min_prop_delay_in_ns	= 5,
+	.max_prop_delay_in_ns	= 9,
+	.max_chip_count		= 1,
+};
+
 /* mxsfb (lcdif) */
 static struct fb_videomode mx23evk_video_modes[] = {
 	{
@@ -122,6 +149,7 @@ static void __init mx23evk_init(void)
 	else
 		gpio_set_value(MX23EVK_BL_ENABLE, 1);
 
+	mx23_add_gpmi_nfc(&mx23evk_gpmi_pdata);
 	mx23_add_mxsfb(&mx23evk_mxsfb_pdata);
 }
 
-- 
1.7.0.4





More information about the linux-mtd mailing list