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https://github.com/apache/nuttx.git
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Add support for ONFI compatible NAND devices (NAND logic still incomplete)
This commit is contained in:
Gregory Nutt
@@ -6065,3 +6065,7 @@
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* include/nuttx/mtd/mtd.h: Move include/nutt/mtd.h to
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include/nuttx/mtd/mtd.h where it will, hopefully, soon be joined by
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other MTD-related header files (2013-11-15).
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* drivers/mtd/mtd_onfi.c and include/nuttx/mtd/onfi.h: Add sharedi
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NAND routines for use with ONFI compatible NAND FLASH devices
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(2013-11-15).
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@@ -164,6 +164,20 @@
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#define BUTTON_USER1_BIT (1 << BUTTON_USER1)
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/* NAND *****************************************************************************/
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/* Address for transferring command bytes to the nandflash, CLE A22*/
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#define BOARD_NF_COMMAND_ADDR 0x60400000
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/* Address for transferring address bytes to the nandflash, ALE A21*/
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#define BOARD_NF_ADDRESS_ADDR 0x60200000
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/* Address for transferring data bytes to the nandflash.*/
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#define BOARD_NF_DATA_ADDR 0x60000000
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/* PIO configuration ****************************************************************/
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/* LCDC */
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@@ -82,6 +82,15 @@ config MTD_NAND
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Enable support for NAND FLASH devices.
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if MTD_NAND
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config MTD_NAND_EMBEDDEDECC
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bool "Support devices with Embedded ECC"
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default n
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---help--
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Some NAND devices have internal, embedded ECC function. One (the
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only one supported) is Micron, 4-bit ECC, device size = 1Gb or 2Gb
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or 4Gb.
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endif # MTD_NAND
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config RAMMTD
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@@ -45,6 +45,10 @@ ifeq ($(CONFIG_MTD_PARTITION),y)
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CSRCS += mtd_partition.c
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endif
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ifeq ($(CONFIG_MTD_NAND),y)
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CSRCS += mtd_onfi.c
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endif
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ifeq ($(CONFIG_RAMMTD),y)
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CSRCS += rammtd.c
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endif
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File diff suppressed because it is too large
Load Diff
@@ -0,0 +1,115 @@
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/****************************************************************************
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* include/nuttx/mtd/nand_model.h
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*
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* ONFI Support. The Open NAND Flash Interface (ONFI) is an industry
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* Workgroup made up of more than 100 companies that build, design-in, or
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* enable NAND Flash memory. This file provides definitions for standardized
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* ONFI NAND interfaces.
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*
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* Copyright (C) 2013 Gregory Nutt. All rights reserved.
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* Author: Gregory Nutt <gnutt@nuttx.org>
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*
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* This ogic was based largely on Atmel sample code with modifications for
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* better integration with NuttX. The Atmel sample code has a BSD
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* compatibile license that requires this copyright notice:
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*
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* Copyright (c) 2012, Atmel Corporation
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the names NuttX nor Atmel nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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****************************************************************************/
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#ifndef __INCLUDE_NUTTX_MTD_NAND_MODEL_H
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#define __INCLUDE_NUTTX_MTD_NAND_MODEL_H
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <stdint.h>
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#include <stdbool.h>
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/****************************************************************************
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* Pre-Processor Definitions
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****************************************************************************/
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/* Number of NandFlash models inside the model list */
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#define NAND_NMODELS 60
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/****************************************************************************
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* Public Types
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****************************************************************************/
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/* Describes a particular model of NandFlash device. */
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struct nand_model_s
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{
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uint8_t devid; /* Identifier for the device */
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uint8_t options; /* Special options for the NandFlash */
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uint16_t pagesize; /* Size of the data area of a page in bytes */
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uint16_t sparesize; /* Size of the spare area of a page in bytes */
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uint16_t devsize; /* Size of the device in MB */
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uint16_t blocksize; /* Size of one block in kilobytes */
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/* Spare area placement scheme */
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FAR const struct nand_scheme_s *scheme;
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};
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/****************************************************************************
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* Public Data
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****************************************************************************/
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#ifndef __ASSEMBLY__
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#ifdef __cplusplus
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#define EXTERN extern "C"
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extern "C"
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{
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#else
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#define EXTERN extern
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#endif
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/* List of NandFlash models which can be recognized by the software */
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EXTERN const struct nand_model_s g_nandmodels[NAND_NMODELS];
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/****************************************************************************
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* Public Function Prototypes
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****************************************************************************/
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#undef EXTERN
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#ifdef __cplusplus
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}
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#endif
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#endif /* __ASSEMBLY__ */
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#endif /* __INCLUDE_NUTTX_MTD_NAND_MODEL_H */
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@@ -0,0 +1,195 @@
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/****************************************************************************
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* include/nuttx/mtd/onfi.h
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*
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* ONFI Support. The Open NAND Flash Interface (ONFI) is an industry
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* Workgroup made up of more than 100 companies that build, design-in, or
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* enable NAND Flash memory. This file provides definitions for standardized
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* ONFI NAND interfaces.
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*
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* Copyright (C) 2013 Gregory Nutt. All rights reserved.
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* Author: Gregory Nutt <gnutt@nuttx.org>
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*
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* This ONFI logic was based largely on Atmel sample code with modifications
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* for better integration with NuttX. The Atmel sample code has a BSD
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* compatibile license that requires this copyright notice:
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*
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* Copyright (c) 2010, Atmel Corporation
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the names NuttX nor Atmel nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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****************************************************************************/
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#ifndef __INCLUDE_NUTTX_MTD_ONFI_H
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#define __INCLUDE_NUTTX_MTD_ONFI_H
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <stdint.h>
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#include <stdbool.h>
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/****************************************************************************
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* Pre-Processor Definitions
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****************************************************************************/
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/****************************************************************************
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* Public Types
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****************************************************************************/
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/* Opaque handler used to interact with the ONFI module */
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typedef FAR void *ONFI_HANDLE;
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/****************************************************************************
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* Public Data
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****************************************************************************/
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#ifndef __ASSEMBLY__
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#ifdef __cplusplus
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#define EXTERN extern "C"
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extern "C"
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{
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#else
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#define EXTERN extern
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#endif
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/****************************************************************************
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* Public Function Prototypes
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****************************************************************************/
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/****************************************************************************
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* Name: onfi_compatible
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*
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* Description:
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* This function read an the ONFI signature at address of 20h to detect
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* if the device is ONFI compatiable.
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*
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* Input Parameters:
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* cmdaddr - NAND command address base
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* addraddr - NAND address address base
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* dataaddr - NAND data address
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*
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* Returned Value:
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* True if ONFI compatible
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*
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****************************************************************************/
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bool onfi_compatible(uintptr_t cmdaddr, uintptr_t addraddr,
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uintptr_t dataaddr);
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/****************************************************************************
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* Name: onfi_create
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*
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* Description:
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* If the addresses refere to a compatible ONFI device, then create the
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* ONFI handle that can be used to interact with the device.
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*
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* Input Parameters:
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* cmdaddr - NAND command address base
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* addraddr - NAND address address base
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* dataaddr - NAND data address
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*
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* Returned Value:
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* On success, a non-NULL ONFI handle is returned. This handle must be
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* freed by calling onfi_destroy with it is no longer needed.
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* NULL is returned on any failure. Failures include such things as
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* memory allocation failures, ONFI incompatibility, timeouts, etc.
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*
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****************************************************************************/
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ONFI_HANDLE *onfi_create(uintptr_t cmdaddr, uintptr_t addraddr,
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uintptr_t dataaddr);
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/****************************************************************************
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* Name: onfi_destroy
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*
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* Description:
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* Free resources allocated on onfi_create() when the ONFI handle was
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* created. Upon return, the ONFI handle is no longer valid and should not
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* be used further.
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*
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* Input Parameters:
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* handle - An ONFI handle previously created by onfi_create().
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*
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* Returned Value:
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* None
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*
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****************************************************************************/
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void onfi_destroy(ONFI_HANDLE handle);
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/****************************************************************************
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* Name: onfi_embeddedecc
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*
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* Description:
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* Enable or disable the NAND's embedded ECC controller.
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*
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* Input Parameters:
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* handle - An ONFI handle previously created by onfi_create().
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* enable - True: enabled the embedded ECC function; False: disable it
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*
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* Returned Value:
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* True - Internal ECC enabled or disabled successfully
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* False - Internal ECC not supported.
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*
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****************************************************************************/
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#ifdef CONFIG_MTD_NAND_EMBEDDEDECC
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bool onfi_embeddedecc(ONFI_HANDLE handle, bool enable);
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#endif
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/****************************************************************************
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* Name: onfi_ebidetect
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*
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* Description:
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* Detect Nand connection on EBI
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*
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* Input Parameters:
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* cmdaddr - NAND command address base
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* addraddr - NAND address address base
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* dataaddr - NAND data address
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*
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* Returned Value:
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* True if the chip is detected; false otherwise.
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*
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****************************************************************************/
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bool onfi_ebidetect(uintptr_t cmdaddr, uintptr_t addraddr, uintptr_t
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dataaddr);
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#undef EXTERN
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#ifdef __cplusplus
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}
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#endif
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#endif /* __ASSEMBLY__ */
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#endif /* __INCLUDE_NUTTX_MTD_ONFI_H */
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