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/*
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* Flash NAND memory emulation. Based on "16M x 8 Bit NAND Flash
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* Memory" datasheet for the KM29U128AT / K9F2808U0A chips from
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* Samsung Electronic.
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*
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* Copyright (c) 2006 Openedhand Ltd.
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* Written by Andrzej Zaborowski <balrog@zabor.org>
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*
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* This code is licensed under the GNU GPL v2.
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*/
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#ifndef NAND_IO
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|
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# include "hw.h" |
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# include "flash.h" |
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# include "blockdev.h" |
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/* FIXME: Pass block device as an argument. */
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|
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# define NAND_CMD_READ0 0x00 |
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# define NAND_CMD_READ1 0x01 |
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# define NAND_CMD_READ2 0x50 |
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# define NAND_CMD_LPREAD2 0x30 |
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# define NAND_CMD_NOSERIALREAD2 0x35 |
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# define NAND_CMD_RANDOMREAD1 0x05 |
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# define NAND_CMD_RANDOMREAD2 0xe0 |
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# define NAND_CMD_READID 0x90 |
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# define NAND_CMD_RESET 0xff |
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# define NAND_CMD_PAGEPROGRAM1 0x80 |
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# define NAND_CMD_PAGEPROGRAM2 0x10 |
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# define NAND_CMD_CACHEPROGRAM2 0x15 |
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# define NAND_CMD_BLOCKERASE1 0x60 |
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# define NAND_CMD_BLOCKERASE2 0xd0 |
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# define NAND_CMD_READSTATUS 0x70 |
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# define NAND_CMD_COPYBACKPRG1 0x85 |
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|
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# define NAND_IOSTATUS_ERROR (1 << 0) |
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# define NAND_IOSTATUS_PLANE0 (1 << 1) |
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# define NAND_IOSTATUS_PLANE1 (1 << 2) |
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# define NAND_IOSTATUS_PLANE2 (1 << 3) |
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# define NAND_IOSTATUS_PLANE3 (1 << 4) |
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# define NAND_IOSTATUS_BUSY (1 << 6) |
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# define NAND_IOSTATUS_UNPROTCT (1 << 7) |
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|
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# define MAX_PAGE 0x800 |
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# define MAX_OOB 0x40 |
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struct NANDFlashState {
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uint8_t manf_id, chip_id; |
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int size, pages;
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int page_shift, oob_shift, erase_shift, addr_shift;
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uint8_t *storage; |
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BlockDriverState *bdrv; |
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int mem_oob;
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uint8_t cle, ale, ce, wp, gnd; |
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uint8_t io[MAX_PAGE + MAX_OOB + 0x400];
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uint8_t *ioaddr; |
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int iolen;
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uint32_t cmd, addr; |
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int addrlen;
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int status;
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int offset;
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void (*blk_write)(NANDFlashState *s);
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void (*blk_erase)(NANDFlashState *s);
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void (*blk_load)(NANDFlashState *s, uint32_t addr, int offset); |
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uint32_t ioaddr_vmstate; |
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}; |
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# define NAND_NO_AUTOINCR 0x00000001 |
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# define NAND_BUSWIDTH_16 0x00000002 |
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# define NAND_NO_PADDING 0x00000004 |
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# define NAND_CACHEPRG 0x00000008 |
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# define NAND_COPYBACK 0x00000010 |
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# define NAND_IS_AND 0x00000020 |
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# define NAND_4PAGE_ARRAY 0x00000040 |
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# define NAND_NO_READRDY 0x00000100 |
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# define NAND_SAMSUNG_LP (NAND_NO_PADDING | NAND_COPYBACK)
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# define NAND_IO
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# define PAGE(addr) ((addr) >> ADDR_SHIFT)
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# define PAGE_START(page) (PAGE(page) * (PAGE_SIZE + OOB_SIZE))
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# define PAGE_MASK ((1 << ADDR_SHIFT) - 1) |
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# define OOB_SHIFT (PAGE_SHIFT - 5) |
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# define OOB_SIZE (1 << OOB_SHIFT) |
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# define SECTOR(addr) ((addr) >> (9 + ADDR_SHIFT - PAGE_SHIFT)) |
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# define SECTOR_OFFSET(addr) ((addr) & ((511 >> PAGE_SHIFT) << 8)) |
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# define PAGE_SIZE 256 |
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# define PAGE_SHIFT 8 |
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# define PAGE_SECTORS 1 |
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# define ADDR_SHIFT 8 |
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# include "nand.c" |
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# define PAGE_SIZE 512 |
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# define PAGE_SHIFT 9 |
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# define PAGE_SECTORS 1 |
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# define ADDR_SHIFT 8 |
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# include "nand.c" |
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# define PAGE_SIZE 2048 |
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# define PAGE_SHIFT 11 |
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# define PAGE_SECTORS 4 |
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# define ADDR_SHIFT 16 |
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# include "nand.c" |
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/* Information based on Linux drivers/mtd/nand/nand_ids.c */
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static const struct { |
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int size;
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int width;
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int page_shift;
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int erase_shift;
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uint32_t options; |
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} nand_flash_ids[0x100] = {
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[0 ... 0xff] = { 0 }, |
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[0x6e] = { 1, 8, 8, 4, 0 }, |
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[0x64] = { 2, 8, 8, 4, 0 }, |
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[0x6b] = { 4, 8, 9, 4, 0 }, |
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[0xe8] = { 1, 8, 8, 4, 0 }, |
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[0xec] = { 1, 8, 8, 4, 0 }, |
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[0xea] = { 2, 8, 8, 4, 0 }, |
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[0xd5] = { 4, 8, 9, 4, 0 }, |
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[0xe3] = { 4, 8, 9, 4, 0 }, |
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[0xe5] = { 4, 8, 9, 4, 0 }, |
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[0xd6] = { 8, 8, 9, 4, 0 }, |
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[0x39] = { 8, 8, 9, 4, 0 }, |
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[0xe6] = { 8, 8, 9, 4, 0 }, |
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[0x49] = { 8, 16, 9, 4, NAND_BUSWIDTH_16 }, |
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[0x59] = { 8, 16, 9, 4, NAND_BUSWIDTH_16 }, |
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[0x33] = { 16, 8, 9, 5, 0 }, |
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[0x73] = { 16, 8, 9, 5, 0 }, |
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[0x43] = { 16, 16, 9, 5, NAND_BUSWIDTH_16 }, |
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[0x53] = { 16, 16, 9, 5, NAND_BUSWIDTH_16 }, |
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[0x35] = { 32, 8, 9, 5, 0 }, |
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[0x75] = { 32, 8, 9, 5, 0 }, |
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[0x45] = { 32, 16, 9, 5, NAND_BUSWIDTH_16 }, |
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[0x55] = { 32, 16, 9, 5, NAND_BUSWIDTH_16 }, |
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[0x36] = { 64, 8, 9, 5, 0 }, |
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[0x76] = { 64, 8, 9, 5, 0 }, |
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[0x46] = { 64, 16, 9, 5, NAND_BUSWIDTH_16 }, |
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[0x56] = { 64, 16, 9, 5, NAND_BUSWIDTH_16 }, |
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[0x78] = { 128, 8, 9, 5, 0 }, |
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[0x39] = { 128, 8, 9, 5, 0 }, |
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[0x79] = { 128, 8, 9, 5, 0 }, |
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[0x72] = { 128, 16, 9, 5, NAND_BUSWIDTH_16 }, |
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[0x49] = { 128, 16, 9, 5, NAND_BUSWIDTH_16 }, |
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[0x74] = { 128, 16, 9, 5, NAND_BUSWIDTH_16 }, |
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[0x59] = { 128, 16, 9, 5, NAND_BUSWIDTH_16 }, |
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[0x71] = { 256, 8, 9, 5, 0 }, |
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/*
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* These are the new chips with large page size. The pagesize and the
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* erasesize is determined from the extended id bytes
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*/
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# define LP_OPTIONS (NAND_SAMSUNG_LP | NAND_NO_READRDY | NAND_NO_AUTOINCR)
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# define LP_OPTIONS16 (LP_OPTIONS | NAND_BUSWIDTH_16)
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/* 512 Megabit */
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[0xa2] = { 64, 8, 0, 0, LP_OPTIONS }, |
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[0xf2] = { 64, 8, 0, 0, LP_OPTIONS }, |
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[0xb2] = { 64, 16, 0, 0, LP_OPTIONS16 }, |
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[0xc2] = { 64, 16, 0, 0, LP_OPTIONS16 }, |
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/* 1 Gigabit */
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[0xa1] = { 128, 8, 0, 0, LP_OPTIONS }, |
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[0xf1] = { 128, 8, 0, 0, LP_OPTIONS }, |
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[0xb1] = { 128, 16, 0, 0, LP_OPTIONS16 }, |
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[0xc1] = { 128, 16, 0, 0, LP_OPTIONS16 }, |
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/* 2 Gigabit */
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[0xaa] = { 256, 8, 0, 0, LP_OPTIONS }, |
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[0xda] = { 256, 8, 0, 0, LP_OPTIONS }, |
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[0xba] = { 256, 16, 0, 0, LP_OPTIONS16 }, |
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[0xca] = { 256, 16, 0, 0, LP_OPTIONS16 }, |
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/* 4 Gigabit */
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[0xac] = { 512, 8, 0, 0, LP_OPTIONS }, |
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[0xdc] = { 512, 8, 0, 0, LP_OPTIONS }, |
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[0xbc] = { 512, 16, 0, 0, LP_OPTIONS16 }, |
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[0xcc] = { 512, 16, 0, 0, LP_OPTIONS16 }, |
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/* 8 Gigabit */
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[0xa3] = { 1024, 8, 0, 0, LP_OPTIONS }, |
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[0xd3] = { 1024, 8, 0, 0, LP_OPTIONS }, |
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[0xb3] = { 1024, 16, 0, 0, LP_OPTIONS16 }, |
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[0xc3] = { 1024, 16, 0, 0, LP_OPTIONS16 }, |
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/* 16 Gigabit */
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[0xa5] = { 2048, 8, 0, 0, LP_OPTIONS }, |
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[0xd5] = { 2048, 8, 0, 0, LP_OPTIONS }, |
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[0xb5] = { 2048, 16, 0, 0, LP_OPTIONS16 }, |
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[0xc5] = { 2048, 16, 0, 0, LP_OPTIONS16 }, |
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}; |
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static void nand_reset(NANDFlashState *s) |
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{ |
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s->cmd = NAND_CMD_READ0; |
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s->addr = 0;
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s->addrlen = 0;
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s->iolen = 0;
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s->offset = 0;
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s->status &= NAND_IOSTATUS_UNPROTCT; |
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} |
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static void nand_command(NANDFlashState *s) |
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{ |
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unsigned int offset; |
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switch (s->cmd) {
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case NAND_CMD_READ0:
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s->iolen = 0;
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break;
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case NAND_CMD_READID:
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s->io[0] = s->manf_id;
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s->io[1] = s->chip_id;
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s->io[2] = 'Q'; /* Don't-care byte (often 0xa5) */ |
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if (nand_flash_ids[s->chip_id].options & NAND_SAMSUNG_LP)
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s->io[3] = 0x15; /* Page Size, Block Size, Spare Size.. */ |
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else
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s->io[3] = 0xc0; /* Multi-plane */ |
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s->ioaddr = s->io; |
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s->iolen = 4;
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break;
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case NAND_CMD_RANDOMREAD2:
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case NAND_CMD_NOSERIALREAD2:
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if (!(nand_flash_ids[s->chip_id].options & NAND_SAMSUNG_LP))
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break;
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offset = s->addr & ((1 << s->addr_shift) - 1); |
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s->blk_load(s, s->addr, offset); |
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if (s->gnd)
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s->iolen = (1 << s->page_shift) - offset;
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else
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s->iolen = (1 << s->page_shift) + (1 << s->oob_shift) - offset; |
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break;
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case NAND_CMD_RESET:
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nand_reset(s); |
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break;
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case NAND_CMD_PAGEPROGRAM1:
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s->ioaddr = s->io; |
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s->iolen = 0;
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break;
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case NAND_CMD_PAGEPROGRAM2:
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if (s->wp) {
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s->blk_write(s); |
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} |
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break;
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case NAND_CMD_BLOCKERASE1:
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break;
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case NAND_CMD_BLOCKERASE2:
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if (nand_flash_ids[s->chip_id].options & NAND_SAMSUNG_LP)
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s->addr <<= 16;
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else
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s->addr <<= 8;
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if (s->wp) {
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s->blk_erase(s); |
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} |
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break;
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case NAND_CMD_READSTATUS:
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s->io[0] = s->status;
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s->ioaddr = s->io; |
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s->iolen = 1;
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break;
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default:
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printf("%s: Unknown NAND command 0x%02x\n", __FUNCTION__, s->cmd);
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} |
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} |
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static void nand_pre_save(void *opaque) |
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{ |
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NANDFlashState *s = opaque; |
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s->ioaddr_vmstate = s->ioaddr - s->io; |
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} |
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|
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static int nand_post_load(void *opaque, int version_id) |
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{ |
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NANDFlashState *s = opaque; |
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if (s->ioaddr_vmstate > sizeof(s->io)) { |
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return -EINVAL;
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} |
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s->ioaddr = s->io + s->ioaddr_vmstate; |
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return 0; |
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} |
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static const VMStateDescription vmstate_nand = { |
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.name = "nand",
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.version_id = 0,
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.minimum_version_id = 0,
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.minimum_version_id_old = 0,
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.pre_save = nand_pre_save, |
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.post_load = nand_post_load, |
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.fields = (VMStateField[]) { |
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VMSTATE_UINT8(cle, NANDFlashState), |
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VMSTATE_UINT8(ale, NANDFlashState), |
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VMSTATE_UINT8(ce, NANDFlashState), |
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VMSTATE_UINT8(wp, NANDFlashState), |
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VMSTATE_UINT8(gnd, NANDFlashState), |
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VMSTATE_BUFFER(io, NANDFlashState), |
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VMSTATE_UINT32(ioaddr_vmstate, NANDFlashState), |
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VMSTATE_INT32(iolen, NANDFlashState), |
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VMSTATE_UINT32(cmd, NANDFlashState), |
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VMSTATE_UINT32(addr, NANDFlashState), |
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VMSTATE_INT32(addrlen, NANDFlashState), |
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VMSTATE_INT32(status, NANDFlashState), |
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VMSTATE_INT32(offset, NANDFlashState), |
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/* XXX: do we want to save s->storage too? */
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VMSTATE_END_OF_LIST() |
328 |
} |
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}; |
330 |
|
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/*
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* Chip inputs are CLE, ALE, CE, WP, GND and eight I/O pins. Chip
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* outputs are R/B and eight I/O pins.
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*
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* CE, WP and R/B are active low.
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*/
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void nand_setpins(NANDFlashState *s, uint8_t cle, uint8_t ale,
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uint8_t ce, uint8_t wp, uint8_t gnd) |
339 |
{ |
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s->cle = cle; |
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s->ale = ale; |
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s->ce = ce; |
343 |
s->wp = wp; |
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s->gnd = gnd; |
345 |
if (wp)
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s->status |= NAND_IOSTATUS_UNPROTCT; |
347 |
else
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s->status &= ~NAND_IOSTATUS_UNPROTCT; |
349 |
} |
350 |
|
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void nand_getpins(NANDFlashState *s, int *rb) |
352 |
{ |
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*rb = 1;
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} |
355 |
|
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void nand_setio(NANDFlashState *s, uint8_t value)
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{ |
358 |
if (!s->ce && s->cle) {
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if (nand_flash_ids[s->chip_id].options & NAND_SAMSUNG_LP) {
|
360 |
if (s->cmd == NAND_CMD_READ0 && value == NAND_CMD_LPREAD2)
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return;
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362 |
if (value == NAND_CMD_RANDOMREAD1) {
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s->addr &= ~((1 << s->addr_shift) - 1); |
364 |
s->addrlen = 0;
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return;
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} |
367 |
} |
368 |
if (value == NAND_CMD_READ0)
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s->offset = 0;
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370 |
else if (value == NAND_CMD_READ1) { |
371 |
s->offset = 0x100;
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value = NAND_CMD_READ0; |
373 |
} |
374 |
else if (value == NAND_CMD_READ2) { |
375 |
s->offset = 1 << s->page_shift;
|
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value = NAND_CMD_READ0; |
377 |
} |
378 |
|
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s->cmd = value; |
380 |
|
381 |
if (s->cmd == NAND_CMD_READSTATUS ||
|
382 |
s->cmd == NAND_CMD_PAGEPROGRAM2 || |
383 |
s->cmd == NAND_CMD_BLOCKERASE1 || |
384 |
s->cmd == NAND_CMD_BLOCKERASE2 || |
385 |
s->cmd == NAND_CMD_NOSERIALREAD2 || |
386 |
s->cmd == NAND_CMD_RANDOMREAD2 || |
387 |
s->cmd == NAND_CMD_RESET) |
388 |
nand_command(s); |
389 |
|
390 |
if (s->cmd != NAND_CMD_RANDOMREAD2) {
|
391 |
s->addrlen = 0;
|
392 |
} |
393 |
} |
394 |
|
395 |
if (s->ale) {
|
396 |
unsigned int shift = s->addrlen * 8; |
397 |
unsigned int mask = ~(0xff << shift); |
398 |
unsigned int v = value << shift; |
399 |
|
400 |
s->addr = (s->addr & mask) | v; |
401 |
s->addrlen ++; |
402 |
|
403 |
if (s->addrlen == 1 && s->cmd == NAND_CMD_READID) |
404 |
nand_command(s); |
405 |
|
406 |
if (!(nand_flash_ids[s->chip_id].options & NAND_SAMSUNG_LP) &&
|
407 |
s->addrlen == 3 && (
|
408 |
s->cmd == NAND_CMD_READ0 || |
409 |
s->cmd == NAND_CMD_PAGEPROGRAM1)) |
410 |
nand_command(s); |
411 |
if ((nand_flash_ids[s->chip_id].options & NAND_SAMSUNG_LP) &&
|
412 |
s->addrlen == 4 && (
|
413 |
s->cmd == NAND_CMD_READ0 || |
414 |
s->cmd == NAND_CMD_PAGEPROGRAM1)) |
415 |
nand_command(s); |
416 |
} |
417 |
|
418 |
if (!s->cle && !s->ale && s->cmd == NAND_CMD_PAGEPROGRAM1) {
|
419 |
if (s->iolen < (1 << s->page_shift) + (1 << s->oob_shift)) |
420 |
s->io[s->iolen ++] = value; |
421 |
} else if (!s->cle && !s->ale && s->cmd == NAND_CMD_COPYBACKPRG1) { |
422 |
if ((s->addr & ((1 << s->addr_shift) - 1)) < |
423 |
(1 << s->page_shift) + (1 << s->oob_shift)) { |
424 |
s->io[s->iolen + (s->addr & ((1 << s->addr_shift) - 1))] = value; |
425 |
s->addr ++; |
426 |
} |
427 |
} |
428 |
} |
429 |
|
430 |
uint8_t nand_getio(NANDFlashState *s) |
431 |
{ |
432 |
int offset;
|
433 |
|
434 |
/* Allow sequential reading */
|
435 |
if (!s->iolen && s->cmd == NAND_CMD_READ0) {
|
436 |
offset = (s->addr & ((1 << s->addr_shift) - 1)) + s->offset; |
437 |
s->offset = 0;
|
438 |
|
439 |
s->blk_load(s, s->addr, offset); |
440 |
if (s->gnd)
|
441 |
s->iolen = (1 << s->page_shift) - offset;
|
442 |
else
|
443 |
s->iolen = (1 << s->page_shift) + (1 << s->oob_shift) - offset; |
444 |
} |
445 |
|
446 |
if (s->ce || s->iolen <= 0) |
447 |
return 0; |
448 |
|
449 |
s->iolen --; |
450 |
s->addr++; |
451 |
return *(s->ioaddr ++);
|
452 |
} |
453 |
|
454 |
NANDFlashState *nand_init(int manf_id, int chip_id) |
455 |
{ |
456 |
int pagesize;
|
457 |
NANDFlashState *s; |
458 |
DriveInfo *dinfo; |
459 |
|
460 |
if (nand_flash_ids[chip_id].size == 0) { |
461 |
hw_error("%s: Unsupported NAND chip ID.\n", __FUNCTION__);
|
462 |
} |
463 |
|
464 |
s = (NANDFlashState *) qemu_mallocz(sizeof(NANDFlashState));
|
465 |
dinfo = drive_get(IF_MTD, 0, 0); |
466 |
if (dinfo)
|
467 |
s->bdrv = dinfo->bdrv; |
468 |
s->manf_id = manf_id; |
469 |
s->chip_id = chip_id; |
470 |
s->size = nand_flash_ids[s->chip_id].size << 20;
|
471 |
if (nand_flash_ids[s->chip_id].options & NAND_SAMSUNG_LP) {
|
472 |
s->page_shift = 11;
|
473 |
s->erase_shift = 6;
|
474 |
} else {
|
475 |
s->page_shift = nand_flash_ids[s->chip_id].page_shift; |
476 |
s->erase_shift = nand_flash_ids[s->chip_id].erase_shift; |
477 |
} |
478 |
|
479 |
switch (1 << s->page_shift) { |
480 |
case 256: |
481 |
nand_init_256(s); |
482 |
break;
|
483 |
case 512: |
484 |
nand_init_512(s); |
485 |
break;
|
486 |
case 2048: |
487 |
nand_init_2048(s); |
488 |
break;
|
489 |
default:
|
490 |
hw_error("%s: Unsupported NAND block size.\n", __FUNCTION__);
|
491 |
} |
492 |
|
493 |
pagesize = 1 << s->oob_shift;
|
494 |
s->mem_oob = 1;
|
495 |
if (s->bdrv && bdrv_getlength(s->bdrv) >=
|
496 |
(s->pages << s->page_shift) + (s->pages << s->oob_shift)) { |
497 |
pagesize = 0;
|
498 |
s->mem_oob = 0;
|
499 |
} |
500 |
|
501 |
if (!s->bdrv)
|
502 |
pagesize += 1 << s->page_shift;
|
503 |
if (pagesize)
|
504 |
s->storage = (uint8_t *) memset(qemu_malloc(s->pages * pagesize), |
505 |
0xff, s->pages * pagesize);
|
506 |
/* Give s->ioaddr a sane value in case we save state before it
|
507 |
is used. */
|
508 |
s->ioaddr = s->io; |
509 |
|
510 |
vmstate_register(NULL, -1, &vmstate_nand, s); |
511 |
|
512 |
return s;
|
513 |
} |
514 |
|
515 |
void nand_done(NANDFlashState *s)
|
516 |
{ |
517 |
if (s->bdrv) {
|
518 |
bdrv_close(s->bdrv); |
519 |
bdrv_delete(s->bdrv); |
520 |
} |
521 |
|
522 |
if (!s->bdrv || s->mem_oob)
|
523 |
qemu_free(s->storage); |
524 |
|
525 |
qemu_free(s); |
526 |
} |
527 |
|
528 |
#else
|
529 |
|
530 |
/* Program a single page */
|
531 |
static void glue(nand_blk_write_, PAGE_SIZE)(NANDFlashState *s) |
532 |
{ |
533 |
uint32_t off, page, sector, soff; |
534 |
uint8_t iobuf[(PAGE_SECTORS + 2) * 0x200]; |
535 |
if (PAGE(s->addr) >= s->pages)
|
536 |
return;
|
537 |
|
538 |
if (!s->bdrv) {
|
539 |
memcpy(s->storage + PAGE_START(s->addr) + (s->addr & PAGE_MASK) + |
540 |
s->offset, s->io, s->iolen); |
541 |
} else if (s->mem_oob) { |
542 |
sector = SECTOR(s->addr); |
543 |
off = (s->addr & PAGE_MASK) + s->offset; |
544 |
soff = SECTOR_OFFSET(s->addr); |
545 |
if (bdrv_read(s->bdrv, sector, iobuf, PAGE_SECTORS) == -1) { |
546 |
printf("%s: read error in sector %i\n", __FUNCTION__, sector);
|
547 |
return;
|
548 |
} |
549 |
|
550 |
memcpy(iobuf + (soff | off), s->io, MIN(s->iolen, PAGE_SIZE - off)); |
551 |
if (off + s->iolen > PAGE_SIZE) {
|
552 |
page = PAGE(s->addr); |
553 |
memcpy(s->storage + (page << OOB_SHIFT), s->io + PAGE_SIZE - off, |
554 |
MIN(OOB_SIZE, off + s->iolen - PAGE_SIZE)); |
555 |
} |
556 |
|
557 |
if (bdrv_write(s->bdrv, sector, iobuf, PAGE_SECTORS) == -1) |
558 |
printf("%s: write error in sector %i\n", __FUNCTION__, sector);
|
559 |
} else {
|
560 |
off = PAGE_START(s->addr) + (s->addr & PAGE_MASK) + s->offset; |
561 |
sector = off >> 9;
|
562 |
soff = off & 0x1ff;
|
563 |
if (bdrv_read(s->bdrv, sector, iobuf, PAGE_SECTORS + 2) == -1) { |
564 |
printf("%s: read error in sector %i\n", __FUNCTION__, sector);
|
565 |
return;
|
566 |
} |
567 |
|
568 |
memcpy(iobuf + soff, s->io, s->iolen); |
569 |
|
570 |
if (bdrv_write(s->bdrv, sector, iobuf, PAGE_SECTORS + 2) == -1) |
571 |
printf("%s: write error in sector %i\n", __FUNCTION__, sector);
|
572 |
} |
573 |
s->offset = 0;
|
574 |
} |
575 |
|
576 |
/* Erase a single block */
|
577 |
static void glue(nand_blk_erase_, PAGE_SIZE)(NANDFlashState *s) |
578 |
{ |
579 |
uint32_t i, page, addr; |
580 |
uint8_t iobuf[0x200] = { [0 ... 0x1ff] = 0xff, }; |
581 |
addr = s->addr & ~((1 << (ADDR_SHIFT + s->erase_shift)) - 1); |
582 |
|
583 |
if (PAGE(addr) >= s->pages)
|
584 |
return;
|
585 |
|
586 |
if (!s->bdrv) {
|
587 |
memset(s->storage + PAGE_START(addr), |
588 |
0xff, (PAGE_SIZE + OOB_SIZE) << s->erase_shift);
|
589 |
} else if (s->mem_oob) { |
590 |
memset(s->storage + (PAGE(addr) << OOB_SHIFT), |
591 |
0xff, OOB_SIZE << s->erase_shift);
|
592 |
i = SECTOR(addr); |
593 |
page = SECTOR(addr + (ADDR_SHIFT + s->erase_shift)); |
594 |
for (; i < page; i ++)
|
595 |
if (bdrv_write(s->bdrv, i, iobuf, 1) == -1) |
596 |
printf("%s: write error in sector %i\n", __FUNCTION__, i);
|
597 |
} else {
|
598 |
addr = PAGE_START(addr); |
599 |
page = addr >> 9;
|
600 |
if (bdrv_read(s->bdrv, page, iobuf, 1) == -1) |
601 |
printf("%s: read error in sector %i\n", __FUNCTION__, page);
|
602 |
memset(iobuf + (addr & 0x1ff), 0xff, (~addr & 0x1ff) + 1); |
603 |
if (bdrv_write(s->bdrv, page, iobuf, 1) == -1) |
604 |
printf("%s: write error in sector %i\n", __FUNCTION__, page);
|
605 |
|
606 |
memset(iobuf, 0xff, 0x200); |
607 |
i = (addr & ~0x1ff) + 0x200; |
608 |
for (addr += ((PAGE_SIZE + OOB_SIZE) << s->erase_shift) - 0x200; |
609 |
i < addr; i += 0x200)
|
610 |
if (bdrv_write(s->bdrv, i >> 9, iobuf, 1) == -1) |
611 |
printf("%s: write error in sector %i\n", __FUNCTION__, i >> 9); |
612 |
|
613 |
page = i >> 9;
|
614 |
if (bdrv_read(s->bdrv, page, iobuf, 1) == -1) |
615 |
printf("%s: read error in sector %i\n", __FUNCTION__, page);
|
616 |
memset(iobuf, 0xff, ((addr - 1) & 0x1ff) + 1); |
617 |
if (bdrv_write(s->bdrv, page, iobuf, 1) == -1) |
618 |
printf("%s: write error in sector %i\n", __FUNCTION__, page);
|
619 |
} |
620 |
} |
621 |
|
622 |
static void glue(nand_blk_load_, PAGE_SIZE)(NANDFlashState *s, |
623 |
uint32_t addr, int offset)
|
624 |
{ |
625 |
if (PAGE(addr) >= s->pages)
|
626 |
return;
|
627 |
|
628 |
if (s->bdrv) {
|
629 |
if (s->mem_oob) {
|
630 |
if (bdrv_read(s->bdrv, SECTOR(addr), s->io, PAGE_SECTORS) == -1) |
631 |
printf("%s: read error in sector %i\n",
|
632 |
__FUNCTION__, SECTOR(addr)); |
633 |
memcpy(s->io + SECTOR_OFFSET(s->addr) + PAGE_SIZE, |
634 |
s->storage + (PAGE(s->addr) << OOB_SHIFT), |
635 |
OOB_SIZE); |
636 |
s->ioaddr = s->io + SECTOR_OFFSET(s->addr) + offset; |
637 |
} else {
|
638 |
if (bdrv_read(s->bdrv, PAGE_START(addr) >> 9, |
639 |
s->io, (PAGE_SECTORS + 2)) == -1) |
640 |
printf("%s: read error in sector %i\n",
|
641 |
__FUNCTION__, PAGE_START(addr) >> 9);
|
642 |
s->ioaddr = s->io + (PAGE_START(addr) & 0x1ff) + offset;
|
643 |
} |
644 |
} else {
|
645 |
memcpy(s->io, s->storage + PAGE_START(s->addr) + |
646 |
offset, PAGE_SIZE + OOB_SIZE - offset); |
647 |
s->ioaddr = s->io; |
648 |
} |
649 |
} |
650 |
|
651 |
static void glue(nand_init_, PAGE_SIZE)(NANDFlashState *s) |
652 |
{ |
653 |
s->oob_shift = PAGE_SHIFT - 5;
|
654 |
s->pages = s->size >> PAGE_SHIFT; |
655 |
s->addr_shift = ADDR_SHIFT; |
656 |
|
657 |
s->blk_erase = glue(nand_blk_erase_, PAGE_SIZE); |
658 |
s->blk_write = glue(nand_blk_write_, PAGE_SIZE); |
659 |
s->blk_load = glue(nand_blk_load_, PAGE_SIZE); |
660 |
} |
661 |
|
662 |
# undef PAGE_SIZE
|
663 |
# undef PAGE_SHIFT
|
664 |
# undef PAGE_SECTORS
|
665 |
# undef ADDR_SHIFT
|
666 |
#endif /* NAND_IO */ |