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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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# include "hw.h" |
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# include "flash.h" |
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# include "block.h" |
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/* FIXME: Pass block device as an argument. */
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# include "sysemu.h" |
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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 nand_flash_s {
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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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int 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)(struct nand_flash_s *s); |
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void (*blk_erase)(struct nand_flash_s *s); |
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void (*blk_load)(struct nand_flash_s *s, uint32_t addr, int offset); |
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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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struct nand_info_s {
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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(struct nand_flash_s *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(struct nand_flash_s *s) |
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{ |
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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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s->blk_load(s, s->addr, s->addr & ((1 << s->addr_shift) - 1)); |
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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_save(QEMUFile *f, void *opaque) |
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{ |
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struct nand_flash_s *s = (struct nand_flash_s *) opaque; |
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qemu_put_byte(f, s->cle); |
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qemu_put_byte(f, s->ale); |
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qemu_put_byte(f, s->ce); |
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qemu_put_byte(f, s->wp); |
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qemu_put_byte(f, s->gnd); |
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qemu_put_buffer(f, s->io, sizeof(s->io));
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qemu_put_be32(f, s->ioaddr - s->io); |
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qemu_put_be32(f, s->iolen); |
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qemu_put_be32s(f, &s->cmd); |
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qemu_put_be32s(f, &s->addr); |
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qemu_put_be32(f, s->addrlen); |
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qemu_put_be32(f, s->status); |
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qemu_put_be32(f, s->offset); |
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/* XXX: do we want to save s->storage too? */
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} |
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static int nand_load(QEMUFile *f, void *opaque, int version_id) |
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{ |
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struct nand_flash_s *s = (struct nand_flash_s *) opaque; |
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s->cle = qemu_get_byte(f); |
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s->ale = qemu_get_byte(f); |
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s->ce = qemu_get_byte(f); |
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s->wp = qemu_get_byte(f); |
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s->gnd = qemu_get_byte(f); |
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qemu_get_buffer(f, s->io, sizeof(s->io));
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s->ioaddr = s->io + qemu_get_be32(f); |
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s->iolen = qemu_get_be32(f); |
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if (s->ioaddr >= s->io + sizeof(s->io) || s->ioaddr < s->io) |
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return -EINVAL;
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qemu_get_be32s(f, &s->cmd); |
315 |
qemu_get_be32s(f, &s->addr); |
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s->addrlen = qemu_get_be32(f); |
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s->status = qemu_get_be32(f); |
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s->offset = qemu_get_be32(f); |
319 |
return 0; |
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} |
321 |
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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(struct nand_flash_s *s, |
329 |
int cle, int ale, int ce, int wp, int gnd) |
330 |
{ |
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s->cle = cle; |
332 |
s->ale = ale; |
333 |
s->ce = ce; |
334 |
s->wp = wp; |
335 |
s->gnd = gnd; |
336 |
if (wp)
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s->status |= NAND_IOSTATUS_UNPROTCT; |
338 |
else
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s->status &= ~NAND_IOSTATUS_UNPROTCT; |
340 |
} |
341 |
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void nand_getpins(struct nand_flash_s *s, int *rb) |
343 |
{ |
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*rb = 1;
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} |
346 |
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void nand_setio(struct nand_flash_s *s, uint8_t value) |
348 |
{ |
349 |
if (!s->ce && s->cle) {
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if (nand_flash_ids[s->chip_id].options & NAND_SAMSUNG_LP) {
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if (s->cmd == NAND_CMD_READ0 && value == NAND_CMD_LPREAD2)
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return;
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if (value == NAND_CMD_RANDOMREAD1) {
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s->addr &= ~((1 << s->addr_shift) - 1); |
355 |
s->addrlen = 0;
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return;
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} |
358 |
} |
359 |
if (value == NAND_CMD_READ0)
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s->offset = 0;
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else if (value == NAND_CMD_READ1) { |
362 |
s->offset = 0x100;
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value = NAND_CMD_READ0; |
364 |
} |
365 |
else if (value == NAND_CMD_READ2) { |
366 |
s->offset = 1 << s->page_shift;
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value = NAND_CMD_READ0; |
368 |
} |
369 |
|
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s->cmd = value; |
371 |
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372 |
if (s->cmd == NAND_CMD_READSTATUS ||
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s->cmd == NAND_CMD_PAGEPROGRAM2 || |
374 |
s->cmd == NAND_CMD_BLOCKERASE1 || |
375 |
s->cmd == NAND_CMD_BLOCKERASE2 || |
376 |
s->cmd == NAND_CMD_NOSERIALREAD2 || |
377 |
s->cmd == NAND_CMD_RANDOMREAD2 || |
378 |
s->cmd == NAND_CMD_RESET) |
379 |
nand_command(s); |
380 |
|
381 |
if (s->cmd != NAND_CMD_RANDOMREAD2) {
|
382 |
s->addrlen = 0;
|
383 |
s->addr = 0;
|
384 |
} |
385 |
} |
386 |
|
387 |
if (s->ale) {
|
388 |
s->addr |= value << (s->addrlen * 8);
|
389 |
s->addrlen ++; |
390 |
|
391 |
if (s->addrlen == 1 && s->cmd == NAND_CMD_READID) |
392 |
nand_command(s); |
393 |
|
394 |
if (!(nand_flash_ids[s->chip_id].options & NAND_SAMSUNG_LP) &&
|
395 |
s->addrlen == 3 && (
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396 |
s->cmd == NAND_CMD_READ0 || |
397 |
s->cmd == NAND_CMD_PAGEPROGRAM1)) |
398 |
nand_command(s); |
399 |
if ((nand_flash_ids[s->chip_id].options & NAND_SAMSUNG_LP) &&
|
400 |
s->addrlen == 4 && (
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401 |
s->cmd == NAND_CMD_READ0 || |
402 |
s->cmd == NAND_CMD_PAGEPROGRAM1)) |
403 |
nand_command(s); |
404 |
} |
405 |
|
406 |
if (!s->cle && !s->ale && s->cmd == NAND_CMD_PAGEPROGRAM1) {
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407 |
if (s->iolen < (1 << s->page_shift) + (1 << s->oob_shift)) |
408 |
s->io[s->iolen ++] = value; |
409 |
} else if (!s->cle && !s->ale && s->cmd == NAND_CMD_COPYBACKPRG1) { |
410 |
if ((s->addr & ((1 << s->addr_shift) - 1)) < |
411 |
(1 << s->page_shift) + (1 << s->oob_shift)) { |
412 |
s->io[s->iolen + (s->addr & ((1 << s->addr_shift) - 1))] = value; |
413 |
s->addr ++; |
414 |
} |
415 |
} |
416 |
} |
417 |
|
418 |
uint8_t nand_getio(struct nand_flash_s *s)
|
419 |
{ |
420 |
int offset;
|
421 |
|
422 |
/* Allow sequential reading */
|
423 |
if (!s->iolen && s->cmd == NAND_CMD_READ0) {
|
424 |
offset = (s->addr & ((1 << s->addr_shift) - 1)) + s->offset; |
425 |
s->offset = 0;
|
426 |
|
427 |
s->blk_load(s, s->addr, offset); |
428 |
if (s->gnd)
|
429 |
s->iolen = (1 << s->page_shift) - offset;
|
430 |
else
|
431 |
s->iolen = (1 << s->page_shift) + (1 << s->oob_shift) - offset; |
432 |
} |
433 |
|
434 |
if (s->ce || s->iolen <= 0) |
435 |
return 0; |
436 |
|
437 |
s->iolen --; |
438 |
return *(s->ioaddr ++);
|
439 |
} |
440 |
|
441 |
struct nand_flash_s *nand_init(int manf_id, int chip_id) |
442 |
{ |
443 |
int pagesize;
|
444 |
struct nand_flash_s *s;
|
445 |
int index;
|
446 |
|
447 |
if (nand_flash_ids[chip_id].size == 0) { |
448 |
cpu_abort(cpu_single_env, "%s: Unsupported NAND chip ID.\n",
|
449 |
__FUNCTION__); |
450 |
} |
451 |
|
452 |
s = (struct nand_flash_s *) qemu_mallocz(sizeof(struct nand_flash_s)); |
453 |
index = drive_get_index(IF_MTD, 0, 0); |
454 |
if (index != -1) |
455 |
s->bdrv = drives_table[index].bdrv; |
456 |
s->manf_id = manf_id; |
457 |
s->chip_id = chip_id; |
458 |
s->size = nand_flash_ids[s->chip_id].size << 20;
|
459 |
if (nand_flash_ids[s->chip_id].options & NAND_SAMSUNG_LP) {
|
460 |
s->page_shift = 11;
|
461 |
s->erase_shift = 6;
|
462 |
} else {
|
463 |
s->page_shift = nand_flash_ids[s->chip_id].page_shift; |
464 |
s->erase_shift = nand_flash_ids[s->chip_id].erase_shift; |
465 |
} |
466 |
|
467 |
switch (1 << s->page_shift) { |
468 |
case 256: |
469 |
nand_init_256(s); |
470 |
break;
|
471 |
case 512: |
472 |
nand_init_512(s); |
473 |
break;
|
474 |
case 2048: |
475 |
nand_init_2048(s); |
476 |
break;
|
477 |
default:
|
478 |
cpu_abort(cpu_single_env, "%s: Unsupported NAND block size.\n",
|
479 |
__FUNCTION__); |
480 |
} |
481 |
|
482 |
pagesize = 1 << s->oob_shift;
|
483 |
s->mem_oob = 1;
|
484 |
if (s->bdrv && bdrv_getlength(s->bdrv) >=
|
485 |
(s->pages << s->page_shift) + (s->pages << s->oob_shift)) { |
486 |
pagesize = 0;
|
487 |
s->mem_oob = 0;
|
488 |
} |
489 |
|
490 |
if (!s->bdrv)
|
491 |
pagesize += 1 << s->page_shift;
|
492 |
if (pagesize)
|
493 |
s->storage = (uint8_t *) memset(qemu_malloc(s->pages * pagesize), |
494 |
0xff, s->pages * pagesize);
|
495 |
|
496 |
register_savevm("nand", -1, 0, nand_save, nand_load, s); |
497 |
|
498 |
return s;
|
499 |
} |
500 |
|
501 |
void nand_done(struct nand_flash_s *s) |
502 |
{ |
503 |
if (s->bdrv) {
|
504 |
bdrv_close(s->bdrv); |
505 |
bdrv_delete(s->bdrv); |
506 |
} |
507 |
|
508 |
if (!s->bdrv || s->mem_oob)
|
509 |
free(s->storage); |
510 |
|
511 |
free(s); |
512 |
} |
513 |
|
514 |
#else
|
515 |
|
516 |
/* Program a single page */
|
517 |
static void glue(nand_blk_write_, PAGE_SIZE)(struct nand_flash_s *s) |
518 |
{ |
519 |
uint32_t off, page, sector, soff; |
520 |
uint8_t iobuf[(PAGE_SECTORS + 2) * 0x200]; |
521 |
if (PAGE(s->addr) >= s->pages)
|
522 |
return;
|
523 |
|
524 |
if (!s->bdrv) {
|
525 |
memcpy(s->storage + PAGE_START(s->addr) + (s->addr & PAGE_MASK) + |
526 |
s->offset, s->io, s->iolen); |
527 |
} else if (s->mem_oob) { |
528 |
sector = SECTOR(s->addr); |
529 |
off = (s->addr & PAGE_MASK) + s->offset; |
530 |
soff = SECTOR_OFFSET(s->addr); |
531 |
if (bdrv_read(s->bdrv, sector, iobuf, PAGE_SECTORS) == -1) { |
532 |
printf("%s: read error in sector %i\n", __FUNCTION__, sector);
|
533 |
return;
|
534 |
} |
535 |
|
536 |
memcpy(iobuf + (soff | off), s->io, MIN(s->iolen, PAGE_SIZE - off)); |
537 |
if (off + s->iolen > PAGE_SIZE) {
|
538 |
page = PAGE(s->addr); |
539 |
memcpy(s->storage + (page << OOB_SHIFT), s->io + PAGE_SIZE - off, |
540 |
MIN(OOB_SIZE, off + s->iolen - PAGE_SIZE)); |
541 |
} |
542 |
|
543 |
if (bdrv_write(s->bdrv, sector, iobuf, PAGE_SECTORS) == -1) |
544 |
printf("%s: write error in sector %i\n", __FUNCTION__, sector);
|
545 |
} else {
|
546 |
off = PAGE_START(s->addr) + (s->addr & PAGE_MASK) + s->offset; |
547 |
sector = off >> 9;
|
548 |
soff = off & 0x1ff;
|
549 |
if (bdrv_read(s->bdrv, sector, iobuf, PAGE_SECTORS + 2) == -1) { |
550 |
printf("%s: read error in sector %i\n", __FUNCTION__, sector);
|
551 |
return;
|
552 |
} |
553 |
|
554 |
memcpy(iobuf + soff, s->io, s->iolen); |
555 |
|
556 |
if (bdrv_write(s->bdrv, sector, iobuf, PAGE_SECTORS + 2) == -1) |
557 |
printf("%s: write error in sector %i\n", __FUNCTION__, sector);
|
558 |
} |
559 |
s->offset = 0;
|
560 |
} |
561 |
|
562 |
/* Erase a single block */
|
563 |
static void glue(nand_blk_erase_, PAGE_SIZE)(struct nand_flash_s *s) |
564 |
{ |
565 |
uint32_t i, page, addr; |
566 |
uint8_t iobuf[0x200] = { [0 ... 0x1ff] = 0xff, }; |
567 |
addr = s->addr & ~((1 << (ADDR_SHIFT + s->erase_shift)) - 1); |
568 |
|
569 |
if (PAGE(addr) >= s->pages)
|
570 |
return;
|
571 |
|
572 |
if (!s->bdrv) {
|
573 |
memset(s->storage + PAGE_START(addr), |
574 |
0xff, (PAGE_SIZE + OOB_SIZE) << s->erase_shift);
|
575 |
} else if (s->mem_oob) { |
576 |
memset(s->storage + (PAGE(addr) << OOB_SHIFT), |
577 |
0xff, OOB_SIZE << s->erase_shift);
|
578 |
i = SECTOR(addr); |
579 |
page = SECTOR(addr + (ADDR_SHIFT + s->erase_shift)); |
580 |
for (; i < page; i ++)
|
581 |
if (bdrv_write(s->bdrv, i, iobuf, 1) == -1) |
582 |
printf("%s: write error in sector %i\n", __FUNCTION__, i);
|
583 |
} else {
|
584 |
addr = PAGE_START(addr); |
585 |
page = addr >> 9;
|
586 |
if (bdrv_read(s->bdrv, page, iobuf, 1) == -1) |
587 |
printf("%s: read error in sector %i\n", __FUNCTION__, page);
|
588 |
memset(iobuf + (addr & 0x1ff), 0xff, (~addr & 0x1ff) + 1); |
589 |
if (bdrv_write(s->bdrv, page, iobuf, 1) == -1) |
590 |
printf("%s: write error in sector %i\n", __FUNCTION__, page);
|
591 |
|
592 |
memset(iobuf, 0xff, 0x200); |
593 |
i = (addr & ~0x1ff) + 0x200; |
594 |
for (addr += ((PAGE_SIZE + OOB_SIZE) << s->erase_shift) - 0x200; |
595 |
i < addr; i += 0x200)
|
596 |
if (bdrv_write(s->bdrv, i >> 9, iobuf, 1) == -1) |
597 |
printf("%s: write error in sector %i\n", __FUNCTION__, i >> 9); |
598 |
|
599 |
page = i >> 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, 0xff, ((addr - 1) & 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 |
} |
607 |
|
608 |
static void glue(nand_blk_load_, PAGE_SIZE)(struct nand_flash_s *s, |
609 |
uint32_t addr, int offset)
|
610 |
{ |
611 |
if (PAGE(addr) >= s->pages)
|
612 |
return;
|
613 |
|
614 |
if (s->bdrv) {
|
615 |
if (s->mem_oob) {
|
616 |
if (bdrv_read(s->bdrv, SECTOR(addr), s->io, PAGE_SECTORS) == -1) |
617 |
printf("%s: read error in sector %i\n",
|
618 |
__FUNCTION__, SECTOR(addr)); |
619 |
memcpy(s->io + SECTOR_OFFSET(s->addr) + PAGE_SIZE, |
620 |
s->storage + (PAGE(s->addr) << OOB_SHIFT), |
621 |
OOB_SIZE); |
622 |
s->ioaddr = s->io + SECTOR_OFFSET(s->addr) + offset; |
623 |
} else {
|
624 |
if (bdrv_read(s->bdrv, PAGE_START(addr) >> 9, |
625 |
s->io, (PAGE_SECTORS + 2)) == -1) |
626 |
printf("%s: read error in sector %i\n",
|
627 |
__FUNCTION__, PAGE_START(addr) >> 9);
|
628 |
s->ioaddr = s->io + (PAGE_START(addr) & 0x1ff) + offset;
|
629 |
} |
630 |
} else {
|
631 |
memcpy(s->io, s->storage + PAGE_START(s->addr) + |
632 |
offset, PAGE_SIZE + OOB_SIZE - offset); |
633 |
s->ioaddr = s->io; |
634 |
} |
635 |
|
636 |
s->addr &= PAGE_SIZE - 1;
|
637 |
s->addr += PAGE_SIZE; |
638 |
} |
639 |
|
640 |
static void glue(nand_init_, PAGE_SIZE)(struct nand_flash_s *s) |
641 |
{ |
642 |
s->oob_shift = PAGE_SHIFT - 5;
|
643 |
s->pages = s->size >> PAGE_SHIFT; |
644 |
s->addr_shift = ADDR_SHIFT; |
645 |
|
646 |
s->blk_erase = glue(nand_blk_erase_, PAGE_SIZE); |
647 |
s->blk_write = glue(nand_blk_write_, PAGE_SIZE); |
648 |
s->blk_load = glue(nand_blk_load_, PAGE_SIZE); |
649 |
} |
650 |
|
651 |
# undef PAGE_SIZE
|
652 |
# undef PAGE_SHIFT
|
653 |
# undef PAGE_SECTORS
|
654 |
# undef ADDR_SHIFT
|
655 |
#endif /* NAND_IO */ |