[PATCH V4 1/3] ARM: mxs: add GPMI-NFC support for imx23/imx28
From: Uwe Kleine-König <hidden>
Date: 2011-06-29 08:05:58
On Wed, Jun 29, 2011 at 03:54:40PM +0800, Huang Shijie wrote:
quoted hunk ↗ jump to hunk
add GPMI-NFC support for imx23 and imx28. Signed-off-by: Huang Shijie <redacted> --- arch/arm/mach-mxs/Kconfig | 2 + arch/arm/mach-mxs/include/mach/gpmi-nfc.h | 71 +++++++++++++++++++++++++++++ 2 files changed, 73 insertions(+), 0 deletions(-) create mode 100644 arch/arm/mach-mxs/include/mach/gpmi-nfc.hdiff --git a/arch/arm/mach-mxs/Kconfig b/arch/arm/mach-mxs/Kconfig index 1d3985f..a5b753a 100644 --- a/arch/arm/mach-mxs/Kconfig +++ b/arch/arm/mach-mxs/Kconfig@@ -32,6 +32,7 @@ config MACH_MX23EVK select SOC_IMX23 select MXS_HAVE_AMBA_DUART select MXS_HAVE_PLATFORM_AUART + select MXS_HAVE_PLATFORM_GPMI_NFC
This symbol is only introduced in patch 2, so the select doesn't belong here.
quoted hunk ↗ jump to hunk
select MXS_HAVE_PLATFORM_MXS_MMC select MXS_HAVE_PLATFORM_MXSFB help@@ -46,6 +47,7 @@ config MACH_MX28EVK select MXS_HAVE_PLATFORM_AUART select MXS_HAVE_PLATFORM_FEC select MXS_HAVE_PLATFORM_FLEXCAN + select MXS_HAVE_PLATFORM_GPMI_NFC select MXS_HAVE_PLATFORM_MXS_MMC select MXS_HAVE_PLATFORM_MXSFB select MXS_OCOTPdiff --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..25fc605 --- /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 __INCLUDE_GPMI_NFC_H +#define __INCLUDE_GPMI_NFC_H
Applying the scheme other files in arch/arm/mach-mxs/include/mach this should read: #ifndef __MACH_MXS_GPMI_NFC_H__ (though it's not consistent, so you could choose between __MACH_MXS_GPMI_NFC_H__ __MACH_GPMI_NFC_H__ __MACH_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;
+};
+#endifBest regards Uwe -- Pengutronix e.K. | Uwe Kleine-K?nig | Industrial Linux Solutions | http://www.pengutronix.de/ |