[PATCH 1/2] ARM: mxs: add GPMI support for imx23/imx28
Huang Shijie
b32955 at freescale.com
Fri Apr 15 04:01:47 EDT 2011
add gpmi support for imx23 and imx28.
Signed-off-by: Huang Shijie <b32955 at freescale.com>
---
arch/arm/mach-mxs/Kconfig | 2 +
arch/arm/mach-mxs/include/mach/gpmi-nfc.h | 68 +++++++++++++++++++++++++++++
2 files changed, 70 insertions(+), 0 deletions(-)
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/include/mach/gpmi-nfc.h b/arch/arm/mach-mxs/include/mach/gpmi-nfc.h
new file mode 100644
index 0000000..32c8ad9
--- /dev/null
+++ b/arch/arm/mach-mxs/include/mach/gpmi-nfc.h
@@ -0,0 +1,68 @@
+/*
+ * 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_DEVICE_H
+#define __INCLUDE_GPMI_DEVICE_H
+
+#define GPMI_NFC_DRIVER_NAME "gpmi-nfc"
+#define GPMI_NFC_DRIVER_MX23 "imx23-gpmi-nfc"
+#define GPMI_NFC_DRIVER_MX28 "imx28-gpmi-nfc"
+#define GPMI_NFC_DRIVER_MX50 "imx50-gpmi-nfc"
+
+/* 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.
+ *
+ * @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
--
1.7.0.4
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