upstream u-boot with additional patches for our devices/boards:
https://lists.denx.de/pipermail/u-boot/2017-March/282789.html (AXP crashes) ;
Gbit ethernet patch for some LIME2 revisions ;
with SPI flash support
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144 lines
3.6 KiB
144 lines
3.6 KiB
/*
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* YAFFS: Yet Another Flash File System. A NAND-flash specific file system.
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*
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* Copyright (C) 2002-2007 Aleph One Ltd.
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* for Toby Churchill Ltd and Brightstar Engineering
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*
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* Created by Charles Manning <charles@aleph1.co.uk>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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/*
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* yaffscfg.c The configuration for the "direct" use of yaffs.
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*
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* This file is intended to be modified to your requirements.
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* There is no need to redistribute this file.
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*/
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#include "yaffscfg.h"
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#include "yaffsfs.h"
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#include <errno.h>
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unsigned yaffs_traceMask = 0xFFFFFFFF;
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void yaffsfs_SetError(int err)
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{
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//Do whatever to set error
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errno = err;
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}
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void yaffsfs_Lock(void)
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{
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}
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void yaffsfs_Unlock(void)
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{
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}
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__u32 yaffsfs_CurrentTime(void)
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{
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return 0;
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}
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void *yaffs_malloc(size_t size)
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{
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return malloc(size);
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}
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void yaffs_free(void *ptr)
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{
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free(ptr);
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}
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void yaffsfs_LocalInitialisation(void)
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{
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// Define locking semaphore.
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}
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// Configuration for:
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// /ram 2MB ramdisk
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// /boot 2MB boot disk (flash)
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// /flash 14MB flash disk (flash)
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// NB Though /boot and /flash occupy the same physical device they
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// are still disticnt "yaffs_Devices. You may think of these as "partitions"
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// using non-overlapping areas in the same device.
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//
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#include "yaffs_ramdisk.h"
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#include "yaffs_flashif.h"
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static yaffs_Device ramDev;
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static yaffs_Device bootDev;
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static yaffs_Device flashDev;
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static yaffsfs_DeviceConfiguration yaffsfs_config[] = {
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{ "/ram", &ramDev},
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{ "/boot", &bootDev},
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{ "/flash", &flashDev},
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{(void *)0,(void *)0}
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};
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int yaffs_StartUp(void)
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{
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// Stuff to configure YAFFS
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// Stuff to initialise anything special (eg lock semaphore).
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yaffsfs_LocalInitialisation();
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// Set up devices
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// /ram
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ramDev.nBytesPerChunk = 512;
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ramDev.nChunksPerBlock = 32;
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ramDev.nReservedBlocks = 2; // Set this smaller for RAM
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ramDev.startBlock = 1; // Can't use block 0
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ramDev.endBlock = 127; // Last block in 2MB.
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ramDev.useNANDECC = 1;
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ramDev.nShortOpCaches = 0; // Disable caching on this device.
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ramDev.genericDevice = (void *) 0; // Used to identify the device in fstat.
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ramDev.writeChunkWithTagsToNAND = yramdisk_WriteChunkWithTagsToNAND;
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ramDev.readChunkWithTagsFromNAND = yramdisk_ReadChunkWithTagsFromNAND;
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ramDev.eraseBlockInNAND = yramdisk_EraseBlockInNAND;
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ramDev.initialiseNAND = yramdisk_InitialiseNAND;
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// /boot
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bootDev.nBytesPerChunk = 612;
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bootDev.nChunksPerBlock = 32;
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bootDev.nReservedBlocks = 5;
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bootDev.startBlock = 1; // Can't use block 0
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bootDev.endBlock = 127; // Last block in 2MB.
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bootDev.useNANDECC = 0; // use YAFFS's ECC
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bootDev.nShortOpCaches = 10; // Use caches
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bootDev.genericDevice = (void *) 1; // Used to identify the device in fstat.
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bootDev.writeChunkToNAND = yflash_WriteChunkToNAND;
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bootDev.readChunkFromNAND = yflash_ReadChunkFromNAND;
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bootDev.eraseBlockInNAND = yflash_EraseBlockInNAND;
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bootDev.initialiseNAND = yflash_InitialiseNAND;
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// /flash
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flashDev.nBytesPerChunk = 512;
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flashDev.nChunksPerBlock = 32;
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flashDev.nReservedBlocks = 5;
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flashDev.startBlock = 128; // First block after 2MB
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flashDev.endBlock = 1023; // Last block in 16MB
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flashDev.useNANDECC = 0; // use YAFFS's ECC
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flashDev.nShortOpCaches = 10; // Use caches
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flashDev.genericDevice = (void *) 2; // Used to identify the device in fstat.
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flashDev.writeChunkToNAND = yflash_WriteChunkToNAND;
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flashDev.readChunkFromNAND = yflash_ReadChunkFromNAND;
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flashDev.eraseBlockInNAND = yflash_EraseBlockInNAND;
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flashDev.initialiseNAND = yflash_InitialiseNAND;
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yaffs_initialise(yaffsfs_config);
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return 0;
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}
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