[PATCH v7 0/3] add the GPMI controller driver for IMX23/IMX28

[Huang Shijie]

Hi:

I attach my tested .config file in the attachment.


Best Regards
Huang Shijie

> The general-purpose media interface(GPMI) controller is a flexible interface
> to up to several NAND flashs.
>
> The Bose Ray-Choudhury Hocquenghem(BCH) module is a hardware ECC accelerator.
>
> With the help of BCH, the GPMI controller can choose to do the hardware ECC or
> not.
>
> This driver is a _pure_ MTD NAND controller driver now.
>
> The driver depends on another patch set, you can find them at :
> 	[1] http://marc.info/?l=linux-arm-kernel&m=130933298731899&w=2
> 	[2] http://marc.info/?l=linux-arm-kernel&m=130933302531947&w=2
> 	[3] http://marc.info/?l=linux-arm-kernel&m=130933300431921&w=2
>
> Test environment:
> 	Using imx23 and imx28 boards for test, and burned the ROOTFS
> 	in the nand flash.
>
> 	imx23 :
> 	console=ttyAMA0,115200 mtdparts=gpmi-nfc:20m(boot),-(user)  ubi.mtd=1 root=ubi0:rootfs0 rootfstype=ubifs gpmi_debug_init
>
>         imx28 :
> 	# console=ttyAMA0,115200 mtdparts=gpmi-nfc-main:20m(boot),-(user) ubi.mtd=1 root=ubi0:rootfs0 rootfstype=ubifs gpmi_debug_init
>
>
> v6 --> v7:
> 	[0] remove the function wrapping the clock.
> 	[1] use the module_param() for debugging.
> 	[2] use the new interface of MTD partitions.
> 		replace add_mtd_partitions() with mtd_device_register().
> 	[3] use pr_info() to print log.
> 	[4] add `__devinit` for some functions, etc.
> 	[5] add `gpmi_nfc` to control the GPMI-NFC driver's initialization.
> 	[6] others.
>
> v5 --> v6:
> 	[0] split out the IMX23/IMX28 arch code to separate patches.
> 	[1] fix bug : missing empty item in the end of platform_id array.
> 	[2] inconsistent identation.
> 	[3] others
>
> v4 --> v5:
> 	[0] rename the files.
> 	[1] fix PM bug
> 	[2] remove the rom_helper code, and move the necessary initialization code
> 		to the main file.
> 	[3] change the macros from CPU_IS_* to GPMI_IS_*
> 	[4] remove the default partition layout init code. revert back the 
> 		partition parsing command line code.
> 	[5] others
>
> v3 --> v4:
> 	[0] use the nand_ids{} as the nand database, drop my own database.
> 	[1] remove the patch for DMA enginer, Shawn will submit his own version.
> 	[2] use the platform_id to distinguish different Archs.
> 	[3] fix the strange coding style.
> 	[4] others.
>
> v2 --> v3:
> 	[0] merge the imx23 and imx28 into one file(including the header file).
> 	[1] remove the unuse registers in the headers.
> 	[2] fix DMA bugs
> 	[3] add bus width field to nand_attr{}
> 	[4] others
>
> v1 --> v2:
> 	[0] merge the common files into the gpmi-nfc-main.c
> 	[1] change the code to get the clock.
> 	[2] remove the timing in the nand_device_info{}
> 	[3] fix DMA errors
> 	[4] add the nand_device_info.[ch] to generic code
> 	[5] use the chip->onfi_version for the ONFI nand
> 	[6] useless init
> 	[7] others
>
>
> Huang Shijie (3):
>   MTD : add the common code for GPMI-NFC controller driver
>   MTD : add support for imx23 and imx28
>   MTD : add GPMI-NFC driver in the config and Makefile
>
>  drivers/mtd/nand/Kconfig              |   11 +
>  drivers/mtd/nand/Makefile             |    1 +
>  drivers/mtd/nand/gpmi-nfc/Makefile    |    3 +
>  drivers/mtd/nand/gpmi-nfc/bch-regs.h  |   88 ++
>  drivers/mtd/nand/gpmi-nfc/gpmi-nfc.c  | 2484 +++++++++++++++++++++++++++++++++
>  drivers/mtd/nand/gpmi-nfc/gpmi-nfc.h  |  495 +++++++
>  drivers/mtd/nand/gpmi-nfc/gpmi-regs.h |  163 +++
>  drivers/mtd/nand/gpmi-nfc/hal-mxs.c   |  554 ++++++++
>  8 files changed, 3799 insertions(+), 0 deletions(-)
>  create mode 100644 drivers/mtd/nand/gpmi-nfc/Makefile
>  create mode 100644 drivers/mtd/nand/gpmi-nfc/bch-regs.h
>  create mode 100644 drivers/mtd/nand/gpmi-nfc/gpmi-nfc.c
>  create mode 100644 drivers/mtd/nand/gpmi-nfc/gpmi-nfc.h
>  create mode 100644 drivers/mtd/nand/gpmi-nfc/gpmi-regs.h
>  create mode 100644 drivers/mtd/nand/gpmi-nfc/hal-mxs.c
>

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