[PATCH v5 1/3] ARM: mxs: add GPMI-NFC support for imx23/imx28
Huang Shijie
b32955 at freescale.com
Wed Jun 29 23:53:46 EDT 2011
add GPMI-NFC support for imx23 and imx28.
Signed-off-by: Huang Shijie <b32955 at freescale.com>
---
arch/arm/mach-mxs/clock-mx23.c | 1 +
arch/arm/mach-mxs/clock-mx28.c | 1 +
arch/arm/mach-mxs/devices-mx23.h | 4 +
arch/arm/mach-mxs/devices-mx28.h | 4 +
arch/arm/mach-mxs/devices/Kconfig | 3 +
arch/arm/mach-mxs/devices/Makefile | 1 +
arch/arm/mach-mxs/devices/platform-gpmi-nfc.c | 90 +++++++++++++++++++++++
arch/arm/mach-mxs/include/mach/devices-common.h | 10 +++
arch/arm/mach-mxs/include/mach/gpmi-nfc.h | 71 ++++++++++++++++++
9 files changed, 185 insertions(+), 0 deletions(-)
create mode 100644 arch/arm/mach-mxs/devices/platform-gpmi-nfc.c
create mode 100644 arch/arm/mach-mxs/include/mach/gpmi-nfc.h
diff --git a/arch/arm/mach-mxs/clock-mx23.c b/arch/arm/mach-mxs/clock-mx23.c
index 0163b6d..e190c53 100644
--- a/arch/arm/mach-mxs/clock-mx23.c
+++ b/arch/arm/mach-mxs/clock-mx23.c
@@ -456,6 +456,7 @@ 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/clock-mx28.c b/arch/arm/mach-mxs/clock-mx28.c
index 5dcc59d..0397f65 100644
--- a/arch/arm/mach-mxs/clock-mx28.c
+++ b/arch/arm/mach-mxs/clock-mx28.c
@@ -614,6 +614,7 @@ static struct clk_lookup lookups[] = {
_REGISTER_CLOCK("duart", NULL, uart_clk)
_REGISTER_CLOCK("imx28-fec.0", NULL, fec_clk)
_REGISTER_CLOCK("imx28-fec.1", NULL, fec_clk)
+ _REGISTER_CLOCK("imx28-gpmi-nfc", NULL, gpmi_clk)
_REGISTER_CLOCK("mxs-auart.0", NULL, uart_clk)
_REGISTER_CLOCK("mxs-auart.1", NULL, uart_clk)
_REGISTER_CLOCK("mxs-auart.2", NULL, uart_clk)
diff --git a/arch/arm/mach-mxs/devices-mx23.h b/arch/arm/mach-mxs/devices-mx23.h
index c6f345f..a9c495d 100644
--- a/arch/arm/mach-mxs/devices-mx23.h
+++ b/arch/arm/mach-mxs/devices-mx23.h
@@ -21,6 +21,10 @@ 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_nfc_data mx23_gpmi_nfc_data __initconst;
+#define mx23_add_gpmi_nfc(pdata) \
+ mxs_add_gpmi_nfc(pdata, &mx23_gpmi_nfc_data)
+
extern const struct mxs_mxs_mmc_data mx23_mxs_mmc_data[] __initconst;
#define mx23_add_mxs_mmc(id, pdata) \
mxs_add_mxs_mmc(&mx23_mxs_mmc_data[id], pdata)
diff --git a/arch/arm/mach-mxs/devices-mx28.h b/arch/arm/mach-mxs/devices-mx28.h
index 79b9452..bbc8f0c 100644
--- a/arch/arm/mach-mxs/devices-mx28.h
+++ b/arch/arm/mach-mxs/devices-mx28.h
@@ -34,6 +34,10 @@ 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_gpmi_nfc_data mx28_gpmi_nfc_data __initconst;
+#define mx28_add_gpmi_nfc(pdata) \
+ mxs_add_gpmi_nfc(pdata, &mx28_gpmi_nfc_data)
+
extern const struct mxs_mxs_i2c_data mx28_mxs_i2c_data[] __initconst;
#define mx28_add_mxs_i2c(id) mxs_add_mxs_i2c(&mx28_mxs_i2c_data[id])
diff --git a/arch/arm/mach-mxs/devices/Kconfig b/arch/arm/mach-mxs/devices/Kconfig
index acf9eea..b42a14b 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 351915c..972abdc 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-nfc.o
obj-$(CONFIG_MXS_HAVE_PLATFORM_MXS_I2C) += platform-mxs-i2c.o
obj-$(CONFIG_MXS_HAVE_PLATFORM_MXS_MMC) += platform-mxs-mmc.o
obj-$(CONFIG_MXS_HAVE_PLATFORM_MXS_PWM) += platform-mxs-pwm.o
diff --git a/arch/arm/mach-mxs/devices/platform-gpmi-nfc.c b/arch/arm/mach-mxs/devices/platform-gpmi-nfc.c
new file mode 100644
index 0000000..ae88672
--- /dev/null
+++ b/arch/arm/mach-mxs/devices/platform-gpmi-nfc.c
@@ -0,0 +1,90 @@
+/*
+ * 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 ## _BASE_ADDR, \
+ .end = soc ##_## _id ## _BASE_ADDR + (_s) - 1,\
+ .name = (_n), \
+ .flags = IORESOURCE_MEM, \
+ }
+
+#define RES_IRQ(soc, _id, _n) \
+ { \
+ .start = soc ##_INT_## _id, \
+ .end = soc ##_INT_## _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_nfc_data mx23_gpmi_nfc_data __initconst = {
+ .devid = "imx23-gpmi-nfc",
+ .res = {
+ /* GPMI */
+ RES_MEM(MX23, GPMI, SZ_8K, GPMI_NFC_GPMI_REGS_ADDR_RES_NAME),
+ RES_IRQ(MX23, GPMI_ATTENTION, GPMI_NFC_GPMI_INTERRUPT_RES_NAME),
+ /* BCH */
+ RES_MEM(MX23, BCH, SZ_8K, GPMI_NFC_BCH_REGS_ADDR_RES_NAME),
+ RES_IRQ(MX23, BCH, GPMI_NFC_BCH_INTERRUPT_RES_NAME),
+ /* DMA */
+ RES_DMA(MX23, DMA_GPMI0, DMA_GPMI3,
+ GPMI_NFC_DMA_CHANNELS_RES_NAME),
+ RES_IRQ(MX23, GPMI_DMA, GPMI_NFC_DMA_INTERRUPT_RES_NAME),
+ },
+};
+#endif
+
+#ifdef CONFIG_SOC_IMX28
+const struct mxs_gpmi_nfc_data mx28_gpmi_nfc_data __initconst = {
+ .devid = "imx28-gpmi-nfc",
+ .res = {
+ /* GPMI */
+ RES_MEM(MX28, GPMI, SZ_8K, GPMI_NFC_GPMI_REGS_ADDR_RES_NAME),
+ RES_IRQ(MX28, GPMI, GPMI_NFC_GPMI_INTERRUPT_RES_NAME),
+ /* BCH */
+ RES_MEM(MX28, BCH, SZ_8K, GPMI_NFC_BCH_REGS_ADDR_RES_NAME),
+ RES_IRQ(MX28, BCH, GPMI_NFC_BCH_INTERRUPT_RES_NAME),
+ /* DMA */
+ RES_DMA(MX28, DMA_GPMI0, DMA_GPMI7,
+ GPMI_NFC_DMA_CHANNELS_RES_NAME),
+ RES_IRQ(MX28, 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_nfc_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 812d7a8..e032120 100644
--- a/arch/arm/mach-mxs/include/mach/devices-common.h
+++ b/arch/arm/mach-mxs/include/mach/devices-common.h
@@ -66,6 +66,16 @@ struct platform_device *__init mxs_add_flexcan(
const struct mxs_flexcan_data *data,
const struct flexcan_platform_data *pdata);
+/* gpmi-nfc */
+#include <mach/gpmi-nfc.h>
+struct mxs_gpmi_nfc_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_nfc_data *data);
+
/* i2c */
struct mxs_mxs_i2c_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..eda8192
--- /dev/null
+++ b/arch/arm/mach-mxs/include/mach/gpmi-nfc.h
@@ -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.
+ */
+
+#ifndef __MACH_MXS_GPMI_NFC_H__
+#define __MACH_MXS_GPMI_NFC_H__
+
+/* The size of the resource is fixed. */
+#define RES_SIZE 6
+
+/* 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.
+ *
+ * @platform_init: A pointer to a function the driver will call to
+ * initialize the platform (e.g., set up the pin mux).
+ * @platform_exit: A pointer to a function the driver will call to
+ * exit the platform (e.g., free pins).
+ * @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 {
+ /* SoC hardware information. */
+ int (*platform_init)(void);
+ void (*platform_exit)(void);
+
+ /* NAND Flash information. */
+ unsigned int min_prop_delay_in_ns;
+ unsigned int max_prop_delay_in_ns;
+ unsigned int max_chip_count;
+
+ /* Medium information. */
+ struct mtd_partition *partitions;
+ unsigned partition_count;
+};
+#endif
--
1.7.0.4
More information about the linux-mtd
mailing list