From mboxrd@z Thu Jan 1 00:00:00 1970 From: b32955@freescale.com (Huang Shijie) Date: Tue, 3 May 2011 14:15:16 +0800 Subject: [PATCH V3 1/3] ARM: mxs: add GPMI support for imx23/imx28 In-Reply-To: <1303726826-31660-1-git-send-email-b32955@freescale.com> References: <1303726826-31660-1-git-send-email-b32955@freescale.com> Message-ID: <4DBF9D74.5090103@freescale.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org hi: Does some one have any comments about these three patches? Thanks Huang Shijie > add gpmi support for imx23 and imx28. > > Signed-off-by: Huang Shijie > --- > 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.h > > diff --git a/arch/arm/mach-mxs/Kconfig b/arch/arm/mach-mxs/Kconfig > index 4f6f174..8132f1a 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_NFC > 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_NFC > 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..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 > + > +/* 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