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-rw-r--r--hw/nand.c791
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diff --git a/hw/nand.c b/hw/nand.c
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-/*
- * Flash NAND memory emulation. Based on "16M x 8 Bit NAND Flash
- * Memory" datasheet for the KM29U128AT / K9F2808U0A chips from
- * Samsung Electronic.
- *
- * Copyright (c) 2006 Openedhand Ltd.
- * Written by Andrzej Zaborowski <balrog@zabor.org>
- *
- * Support for additional features based on "MT29F2G16ABCWP 2Gx16"
- * datasheet from Micron Technology and "NAND02G-B2C" datasheet
- * from ST Microelectronics.
- *
- * This code is licensed under the GNU GPL v2.
- *
- * Contributions after 2012-01-13 are licensed under the terms of the
- * GNU GPL, version 2 or (at your option) any later version.
- */
-
-#ifndef NAND_IO
-
-# include "hw/hw.h"
-# include "hw/flash.h"
-# include "sysemu/blockdev.h"
-# include "hw/sysbus.h"
-#include "qemu/error-report.h"
-
-# define NAND_CMD_READ0 0x00
-# define NAND_CMD_READ1 0x01
-# define NAND_CMD_READ2 0x50
-# define NAND_CMD_LPREAD2 0x30
-# define NAND_CMD_NOSERIALREAD2 0x35
-# define NAND_CMD_RANDOMREAD1 0x05
-# define NAND_CMD_RANDOMREAD2 0xe0
-# define NAND_CMD_READID 0x90
-# define NAND_CMD_RESET 0xff
-# define NAND_CMD_PAGEPROGRAM1 0x80
-# define NAND_CMD_PAGEPROGRAM2 0x10
-# define NAND_CMD_CACHEPROGRAM2 0x15
-# define NAND_CMD_BLOCKERASE1 0x60
-# define NAND_CMD_BLOCKERASE2 0xd0
-# define NAND_CMD_READSTATUS 0x70
-# define NAND_CMD_COPYBACKPRG1 0x85
-
-# define NAND_IOSTATUS_ERROR (1 << 0)
-# define NAND_IOSTATUS_PLANE0 (1 << 1)
-# define NAND_IOSTATUS_PLANE1 (1 << 2)
-# define NAND_IOSTATUS_PLANE2 (1 << 3)
-# define NAND_IOSTATUS_PLANE3 (1 << 4)
-# define NAND_IOSTATUS_READY (1 << 6)
-# define NAND_IOSTATUS_UNPROTCT (1 << 7)
-
-# define MAX_PAGE 0x800
-# define MAX_OOB 0x40
-
-typedef struct NANDFlashState NANDFlashState;
-struct NANDFlashState {
- SysBusDevice busdev;
- uint8_t manf_id, chip_id;
- uint8_t buswidth; /* in BYTES */
- int size, pages;
- int page_shift, oob_shift, erase_shift, addr_shift;
- uint8_t *storage;
- BlockDriverState *bdrv;
- int mem_oob;
-
- uint8_t cle, ale, ce, wp, gnd;
-
- uint8_t io[MAX_PAGE + MAX_OOB + 0x400];
- uint8_t *ioaddr;
- int iolen;
-
- uint32_t cmd;
- uint64_t addr;
- int addrlen;
- int status;
- int offset;
-
- void (*blk_write)(NANDFlashState *s);
- void (*blk_erase)(NANDFlashState *s);
- void (*blk_load)(NANDFlashState *s, uint64_t addr, int offset);
-
- uint32_t ioaddr_vmstate;
-};
-
-static void mem_and(uint8_t *dest, const uint8_t *src, size_t n)
-{
- /* Like memcpy() but we logical-AND the data into the destination */
- int i;
- for (i = 0; i < n; i++) {
- dest[i] &= src[i];
- }
-}
-
-# define NAND_NO_AUTOINCR 0x00000001
-# define NAND_BUSWIDTH_16 0x00000002
-# define NAND_NO_PADDING 0x00000004
-# define NAND_CACHEPRG 0x00000008
-# define NAND_COPYBACK 0x00000010
-# define NAND_IS_AND 0x00000020
-# define NAND_4PAGE_ARRAY 0x00000040
-# define NAND_NO_READRDY 0x00000100
-# define NAND_SAMSUNG_LP (NAND_NO_PADDING | NAND_COPYBACK)
-
-# define NAND_IO
-
-# define PAGE(addr) ((addr) >> ADDR_SHIFT)
-# define PAGE_START(page) (PAGE(page) * (PAGE_SIZE + OOB_SIZE))
-# define PAGE_MASK ((1 << ADDR_SHIFT) - 1)
-# define OOB_SHIFT (PAGE_SHIFT - 5)
-# define OOB_SIZE (1 << OOB_SHIFT)
-# define SECTOR(addr) ((addr) >> (9 + ADDR_SHIFT - PAGE_SHIFT))
-# define SECTOR_OFFSET(addr) ((addr) & ((511 >> PAGE_SHIFT) << 8))
-
-# define PAGE_SIZE 256
-# define PAGE_SHIFT 8
-# define PAGE_SECTORS 1
-# define ADDR_SHIFT 8
-# include "nand.c"
-# define PAGE_SIZE 512
-# define PAGE_SHIFT 9
-# define PAGE_SECTORS 1
-# define ADDR_SHIFT 8
-# include "nand.c"
-# define PAGE_SIZE 2048
-# define PAGE_SHIFT 11
-# define PAGE_SECTORS 4
-# define ADDR_SHIFT 16
-# include "nand.c"
-
-/* Information based on Linux drivers/mtd/nand/nand_ids.c */
-static const struct {
- int size;
- int width;
- int page_shift;
- int erase_shift;
- uint32_t options;
-} nand_flash_ids[0x100] = {
- [0 ... 0xff] = { 0 },
-
- [0x6e] = { 1, 8, 8, 4, 0 },
- [0x64] = { 2, 8, 8, 4, 0 },
- [0x6b] = { 4, 8, 9, 4, 0 },
- [0xe8] = { 1, 8, 8, 4, 0 },
- [0xec] = { 1, 8, 8, 4, 0 },
- [0xea] = { 2, 8, 8, 4, 0 },
- [0xd5] = { 4, 8, 9, 4, 0 },
- [0xe3] = { 4, 8, 9, 4, 0 },
- [0xe5] = { 4, 8, 9, 4, 0 },
- [0xd6] = { 8, 8, 9, 4, 0 },
-
- [0x39] = { 8, 8, 9, 4, 0 },
- [0xe6] = { 8, 8, 9, 4, 0 },
- [0x49] = { 8, 16, 9, 4, NAND_BUSWIDTH_16 },
- [0x59] = { 8, 16, 9, 4, NAND_BUSWIDTH_16 },
-
- [0x33] = { 16, 8, 9, 5, 0 },
- [0x73] = { 16, 8, 9, 5, 0 },
- [0x43] = { 16, 16, 9, 5, NAND_BUSWIDTH_16 },
- [0x53] = { 16, 16, 9, 5, NAND_BUSWIDTH_16 },
-
- [0x35] = { 32, 8, 9, 5, 0 },
- [0x75] = { 32, 8, 9, 5, 0 },
- [0x45] = { 32, 16, 9, 5, NAND_BUSWIDTH_16 },
- [0x55] = { 32, 16, 9, 5, NAND_BUSWIDTH_16 },
-
- [0x36] = { 64, 8, 9, 5, 0 },
- [0x76] = { 64, 8, 9, 5, 0 },
- [0x46] = { 64, 16, 9, 5, NAND_BUSWIDTH_16 },
- [0x56] = { 64, 16, 9, 5, NAND_BUSWIDTH_16 },
-
- [0x78] = { 128, 8, 9, 5, 0 },
- [0x39] = { 128, 8, 9, 5, 0 },
- [0x79] = { 128, 8, 9, 5, 0 },
- [0x72] = { 128, 16, 9, 5, NAND_BUSWIDTH_16 },
- [0x49] = { 128, 16, 9, 5, NAND_BUSWIDTH_16 },
- [0x74] = { 128, 16, 9, 5, NAND_BUSWIDTH_16 },
- [0x59] = { 128, 16, 9, 5, NAND_BUSWIDTH_16 },
-
- [0x71] = { 256, 8, 9, 5, 0 },
-
- /*
- * These are the new chips with large page size. The pagesize and the
- * erasesize is determined from the extended id bytes
- */
-# define LP_OPTIONS (NAND_SAMSUNG_LP | NAND_NO_READRDY | NAND_NO_AUTOINCR)
-# define LP_OPTIONS16 (LP_OPTIONS | NAND_BUSWIDTH_16)
-
- /* 512 Megabit */
- [0xa2] = { 64, 8, 0, 0, LP_OPTIONS },
- [0xf2] = { 64, 8, 0, 0, LP_OPTIONS },
- [0xb2] = { 64, 16, 0, 0, LP_OPTIONS16 },
- [0xc2] = { 64, 16, 0, 0, LP_OPTIONS16 },
-
- /* 1 Gigabit */
- [0xa1] = { 128, 8, 0, 0, LP_OPTIONS },
- [0xf1] = { 128, 8, 0, 0, LP_OPTIONS },
- [0xb1] = { 128, 16, 0, 0, LP_OPTIONS16 },
- [0xc1] = { 128, 16, 0, 0, LP_OPTIONS16 },
-
- /* 2 Gigabit */
- [0xaa] = { 256, 8, 0, 0, LP_OPTIONS },
- [0xda] = { 256, 8, 0, 0, LP_OPTIONS },
- [0xba] = { 256, 16, 0, 0, LP_OPTIONS16 },
- [0xca] = { 256, 16, 0, 0, LP_OPTIONS16 },
-
- /* 4 Gigabit */
- [0xac] = { 512, 8, 0, 0, LP_OPTIONS },
- [0xdc] = { 512, 8, 0, 0, LP_OPTIONS },
- [0xbc] = { 512, 16, 0, 0, LP_OPTIONS16 },
- [0xcc] = { 512, 16, 0, 0, LP_OPTIONS16 },
-
- /* 8 Gigabit */
- [0xa3] = { 1024, 8, 0, 0, LP_OPTIONS },
- [0xd3] = { 1024, 8, 0, 0, LP_OPTIONS },
- [0xb3] = { 1024, 16, 0, 0, LP_OPTIONS16 },
- [0xc3] = { 1024, 16, 0, 0, LP_OPTIONS16 },
-
- /* 16 Gigabit */
- [0xa5] = { 2048, 8, 0, 0, LP_OPTIONS },
- [0xd5] = { 2048, 8, 0, 0, LP_OPTIONS },
- [0xb5] = { 2048, 16, 0, 0, LP_OPTIONS16 },
- [0xc5] = { 2048, 16, 0, 0, LP_OPTIONS16 },
-};
-
-static void nand_reset(DeviceState *dev)
-{
- NANDFlashState *s = FROM_SYSBUS(NANDFlashState, SYS_BUS_DEVICE(dev));
- s->cmd = NAND_CMD_READ0;
- s->addr = 0;
- s->addrlen = 0;
- s->iolen = 0;
- s->offset = 0;
- s->status &= NAND_IOSTATUS_UNPROTCT;
- s->status |= NAND_IOSTATUS_READY;
-}
-
-static inline void nand_pushio_byte(NANDFlashState *s, uint8_t value)
-{
- s->ioaddr[s->iolen++] = value;
- for (value = s->buswidth; --value;) {
- s->ioaddr[s->iolen++] = 0;
- }
-}
-
-static void nand_command(NANDFlashState *s)
-{
- unsigned int offset;
- switch (s->cmd) {
- case NAND_CMD_READ0:
- s->iolen = 0;
- break;
-
- case NAND_CMD_READID:
- s->ioaddr = s->io;
- s->iolen = 0;
- nand_pushio_byte(s, s->manf_id);
- nand_pushio_byte(s, s->chip_id);
- nand_pushio_byte(s, 'Q'); /* Don't-care byte (often 0xa5) */
- if (nand_flash_ids[s->chip_id].options & NAND_SAMSUNG_LP) {
- /* Page Size, Block Size, Spare Size; bit 6 indicates
- * 8 vs 16 bit width NAND.
- */
- nand_pushio_byte(s, (s->buswidth == 2) ? 0x55 : 0x15);
- } else {
- nand_pushio_byte(s, 0xc0); /* Multi-plane */
- }
- break;
-
- case NAND_CMD_RANDOMREAD2:
- case NAND_CMD_NOSERIALREAD2:
- if (!(nand_flash_ids[s->chip_id].options & NAND_SAMSUNG_LP))
- break;
- offset = s->addr & ((1 << s->addr_shift) - 1);
- s->blk_load(s, s->addr, offset);
- if (s->gnd)
- s->iolen = (1 << s->page_shift) - offset;
- else
- s->iolen = (1 << s->page_shift) + (1 << s->oob_shift) - offset;
- break;
-
- case NAND_CMD_RESET:
- nand_reset(&s->busdev.qdev);
- break;
-
- case NAND_CMD_PAGEPROGRAM1:
- s->ioaddr = s->io;
- s->iolen = 0;
- break;
-
- case NAND_CMD_PAGEPROGRAM2:
- if (s->wp) {
- s->blk_write(s);
- }
- break;
-
- case NAND_CMD_BLOCKERASE1:
- break;
-
- case NAND_CMD_BLOCKERASE2:
- s->addr &= (1ull << s->addrlen * 8) - 1;
- if (nand_flash_ids[s->chip_id].options & NAND_SAMSUNG_LP)
- s->addr <<= 16;
- else
- s->addr <<= 8;
-
- if (s->wp) {
- s->blk_erase(s);
- }
- break;
-
- case NAND_CMD_READSTATUS:
- s->ioaddr = s->io;
- s->iolen = 0;
- nand_pushio_byte(s, s->status);
- break;
-
- default:
- printf("%s: Unknown NAND command 0x%02x\n", __FUNCTION__, s->cmd);
- }
-}
-
-static void nand_pre_save(void *opaque)
-{
- NANDFlashState *s = opaque;
-
- s->ioaddr_vmstate = s->ioaddr - s->io;
-}
-
-static int nand_post_load(void *opaque, int version_id)
-{
- NANDFlashState *s = opaque;
-
- if (s->ioaddr_vmstate > sizeof(s->io)) {
- return -EINVAL;
- }
- s->ioaddr = s->io + s->ioaddr_vmstate;
-
- return 0;
-}
-
-static const VMStateDescription vmstate_nand = {
- .name = "nand",
- .version_id = 1,
- .minimum_version_id = 1,
- .minimum_version_id_old = 1,
- .pre_save = nand_pre_save,
- .post_load = nand_post_load,
- .fields = (VMStateField[]) {
- VMSTATE_UINT8(cle, NANDFlashState),
- VMSTATE_UINT8(ale, NANDFlashState),
- VMSTATE_UINT8(ce, NANDFlashState),
- VMSTATE_UINT8(wp, NANDFlashState),
- VMSTATE_UINT8(gnd, NANDFlashState),
- VMSTATE_BUFFER(io, NANDFlashState),
- VMSTATE_UINT32(ioaddr_vmstate, NANDFlashState),
- VMSTATE_INT32(iolen, NANDFlashState),
- VMSTATE_UINT32(cmd, NANDFlashState),
- VMSTATE_UINT64(addr, NANDFlashState),
- VMSTATE_INT32(addrlen, NANDFlashState),
- VMSTATE_INT32(status, NANDFlashState),
- VMSTATE_INT32(offset, NANDFlashState),
- /* XXX: do we want to save s->storage too? */
- VMSTATE_END_OF_LIST()
- }
-};
-
-static int nand_device_init(SysBusDevice *dev)
-{
- int pagesize;
- NANDFlashState *s = FROM_SYSBUS(NANDFlashState, dev);
-
- s->buswidth = nand_flash_ids[s->chip_id].width >> 3;
- s->size = nand_flash_ids[s->chip_id].size << 20;
- if (nand_flash_ids[s->chip_id].options & NAND_SAMSUNG_LP) {
- s->page_shift = 11;
- s->erase_shift = 6;
- } else {
- s->page_shift = nand_flash_ids[s->chip_id].page_shift;
- s->erase_shift = nand_flash_ids[s->chip_id].erase_shift;
- }
-
- switch (1 << s->page_shift) {
- case 256:
- nand_init_256(s);
- break;
- case 512:
- nand_init_512(s);
- break;
- case 2048:
- nand_init_2048(s);
- break;
- default:
- error_report("Unsupported NAND block size");
- return -1;
- }
-
- pagesize = 1 << s->oob_shift;
- s->mem_oob = 1;
- if (s->bdrv) {
- if (bdrv_is_read_only(s->bdrv)) {
- error_report("Can't use a read-only drive");
- return -1;
- }
- if (bdrv_getlength(s->bdrv) >=
- (s->pages << s->page_shift) + (s->pages << s->oob_shift)) {
- pagesize = 0;
- s->mem_oob = 0;
- }
- } else {
- pagesize += 1 << s->page_shift;
- }
- if (pagesize) {
- s->storage = (uint8_t *) memset(g_malloc(s->pages * pagesize),
- 0xff, s->pages * pagesize);
- }
- /* Give s->ioaddr a sane value in case we save state before it is used. */
- s->ioaddr = s->io;
-
- return 0;
-}
-
-static Property nand_properties[] = {
- DEFINE_PROP_UINT8("manufacturer_id", NANDFlashState, manf_id, 0),
- DEFINE_PROP_UINT8("chip_id", NANDFlashState, chip_id, 0),
- DEFINE_PROP_DRIVE("drive", NANDFlashState, bdrv),
- DEFINE_PROP_END_OF_LIST(),
-};
-
-static void nand_class_init(ObjectClass *klass, void *data)
-{
- DeviceClass *dc = DEVICE_CLASS(klass);
- SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass);
-
- k->init = nand_device_init;
- dc->reset = nand_reset;
- dc->vmsd = &vmstate_nand;
- dc->props = nand_properties;
-}
-
-static const TypeInfo nand_info = {
- .name = "nand",
- .parent = TYPE_SYS_BUS_DEVICE,
- .instance_size = sizeof(NANDFlashState),
- .class_init = nand_class_init,
-};
-
-static void nand_register_types(void)
-{
- type_register_static(&nand_info);
-}
-
-/*
- * Chip inputs are CLE, ALE, CE, WP, GND and eight I/O pins. Chip
- * outputs are R/B and eight I/O pins.
- *
- * CE, WP and R/B are active low.
- */
-void nand_setpins(DeviceState *dev, uint8_t cle, uint8_t ale,
- uint8_t ce, uint8_t wp, uint8_t gnd)
-{
- NANDFlashState *s = (NANDFlashState *) dev;
- s->cle = cle;
- s->ale = ale;
- s->ce = ce;
- s->wp = wp;
- s->gnd = gnd;
- if (wp)
- s->status |= NAND_IOSTATUS_UNPROTCT;
- else
- s->status &= ~NAND_IOSTATUS_UNPROTCT;
-}
-
-void nand_getpins(DeviceState *dev, int *rb)
-{
- *rb = 1;
-}
-
-void nand_setio(DeviceState *dev, uint32_t value)
-{
- int i;
- NANDFlashState *s = (NANDFlashState *) dev;
- if (!s->ce && s->cle) {
- if (nand_flash_ids[s->chip_id].options & NAND_SAMSUNG_LP) {
- if (s->cmd == NAND_CMD_READ0 && value == NAND_CMD_LPREAD2)
- return;
- if (value == NAND_CMD_RANDOMREAD1) {
- s->addr &= ~((1 << s->addr_shift) - 1);
- s->addrlen = 0;
- return;
- }
- }
- if (value == NAND_CMD_READ0)
- s->offset = 0;
- else if (value == NAND_CMD_READ1) {
- s->offset = 0x100;
- value = NAND_CMD_READ0;
- }
- else if (value == NAND_CMD_READ2) {
- s->offset = 1 << s->page_shift;
- value = NAND_CMD_READ0;
- }
-
- s->cmd = value;
-
- if (s->cmd == NAND_CMD_READSTATUS ||
- s->cmd == NAND_CMD_PAGEPROGRAM2 ||
- s->cmd == NAND_CMD_BLOCKERASE1 ||
- s->cmd == NAND_CMD_BLOCKERASE2 ||
- s->cmd == NAND_CMD_NOSERIALREAD2 ||
- s->cmd == NAND_CMD_RANDOMREAD2 ||
- s->cmd == NAND_CMD_RESET)
- nand_command(s);
-
- if (s->cmd != NAND_CMD_RANDOMREAD2) {
- s->addrlen = 0;
- }
- }
-
- if (s->ale) {
- unsigned int shift = s->addrlen * 8;
- unsigned int mask = ~(0xff << shift);
- unsigned int v = value << shift;
-
- s->addr = (s->addr & mask) | v;
- s->addrlen ++;
-
- switch (s->addrlen) {
- case 1:
- if (s->cmd == NAND_CMD_READID) {
- nand_command(s);
- }
- break;
- case 2: /* fix cache address as a byte address */
- s->addr <<= (s->buswidth - 1);
- break;
- case 3:
- if (!(nand_flash_ids[s->chip_id].options & NAND_SAMSUNG_LP) &&
- (s->cmd == NAND_CMD_READ0 ||
- s->cmd == NAND_CMD_PAGEPROGRAM1)) {
- nand_command(s);
- }
- break;
- case 4:
- if ((nand_flash_ids[s->chip_id].options & NAND_SAMSUNG_LP) &&
- nand_flash_ids[s->chip_id].size < 256 && /* 1Gb or less */
- (s->cmd == NAND_CMD_READ0 ||
- s->cmd == NAND_CMD_PAGEPROGRAM1)) {
- nand_command(s);
- }
- break;
- case 5:
- if ((nand_flash_ids[s->chip_id].options & NAND_SAMSUNG_LP) &&
- nand_flash_ids[s->chip_id].size >= 256 && /* 2Gb or more */
- (s->cmd == NAND_CMD_READ0 ||
- s->cmd == NAND_CMD_PAGEPROGRAM1)) {
- nand_command(s);
- }
- break;
- default:
- break;
- }
- }
-
- if (!s->cle && !s->ale && s->cmd == NAND_CMD_PAGEPROGRAM1) {
- if (s->iolen < (1 << s->page_shift) + (1 << s->oob_shift)) {
- for (i = s->buswidth; i--; value >>= 8) {
- s->io[s->iolen ++] = (uint8_t) (value & 0xff);
- }
- }
- } else if (!s->cle && !s->ale && s->cmd == NAND_CMD_COPYBACKPRG1) {
- if ((s->addr & ((1 << s->addr_shift) - 1)) <
- (1 << s->page_shift) + (1 << s->oob_shift)) {
- for (i = s->buswidth; i--; s->addr++, value >>= 8) {
- s->io[s->iolen + (s->addr & ((1 << s->addr_shift) - 1))] =
- (uint8_t) (value & 0xff);
- }
- }
- }
-}
-
-uint32_t nand_getio(DeviceState *dev)
-{
- int offset;
- uint32_t x = 0;
- NANDFlashState *s = (NANDFlashState *) dev;
-
- /* Allow sequential reading */
- if (!s->iolen && s->cmd == NAND_CMD_READ0) {
- offset = (int) (s->addr & ((1 << s->addr_shift) - 1)) + s->offset;
- s->offset = 0;
-
- s->blk_load(s, s->addr, offset);
- if (s->gnd)
- s->iolen = (1 << s->page_shift) - offset;
- else
- s->iolen = (1 << s->page_shift) + (1 << s->oob_shift) - offset;
- }
-
- if (s->ce || s->iolen <= 0)
- return 0;
-
- for (offset = s->buswidth; offset--;) {
- x |= s->ioaddr[offset] << (offset << 3);
- }
- /* after receiving READ STATUS command all subsequent reads will
- * return the status register value until another command is issued
- */
- if (s->cmd != NAND_CMD_READSTATUS) {
- s->addr += s->buswidth;
- s->ioaddr += s->buswidth;
- s->iolen -= s->buswidth;
- }
- return x;
-}
-
-uint32_t nand_getbuswidth(DeviceState *dev)
-{
- NANDFlashState *s = (NANDFlashState *) dev;
- return s->buswidth << 3;
-}
-
-DeviceState *nand_init(BlockDriverState *bdrv, int manf_id, int chip_id)
-{
- DeviceState *dev;
-
- if (nand_flash_ids[chip_id].size == 0) {
- hw_error("%s: Unsupported NAND chip ID.\n", __FUNCTION__);
- }
- dev = qdev_create(NULL, "nand");
- qdev_prop_set_uint8(dev, "manufacturer_id", manf_id);
- qdev_prop_set_uint8(dev, "chip_id", chip_id);
- if (bdrv) {
- qdev_prop_set_drive_nofail(dev, "drive", bdrv);
- }
-
- qdev_init_nofail(dev);
- return dev;
-}
-
-type_init(nand_register_types)
-
-#else
-
-/* Program a single page */
-static void glue(nand_blk_write_, PAGE_SIZE)(NANDFlashState *s)
-{
- uint64_t off, page, sector, soff;
- uint8_t iobuf[(PAGE_SECTORS + 2) * 0x200];
- if (PAGE(s->addr) >= s->pages)
- return;
-
- if (!s->bdrv) {
- mem_and(s->storage + PAGE_START(s->addr) + (s->addr & PAGE_MASK) +
- s->offset, s->io, s->iolen);
- } else if (s->mem_oob) {
- sector = SECTOR(s->addr);
- off = (s->addr & PAGE_MASK) + s->offset;
- soff = SECTOR_OFFSET(s->addr);
- if (bdrv_read(s->bdrv, sector, iobuf, PAGE_SECTORS) < 0) {
- printf("%s: read error in sector %" PRIu64 "\n", __func__, sector);
- return;
- }
-
- mem_and(iobuf + (soff | off), s->io, MIN(s->iolen, PAGE_SIZE - off));
- if (off + s->iolen > PAGE_SIZE) {
- page = PAGE(s->addr);
- mem_and(s->storage + (page << OOB_SHIFT), s->io + PAGE_SIZE - off,
- MIN(OOB_SIZE, off + s->iolen - PAGE_SIZE));
- }
-
- if (bdrv_write(s->bdrv, sector, iobuf, PAGE_SECTORS) < 0) {
- printf("%s: write error in sector %" PRIu64 "\n", __func__, sector);
- }
- } else {
- off = PAGE_START(s->addr) + (s->addr & PAGE_MASK) + s->offset;
- sector = off >> 9;
- soff = off & 0x1ff;
- if (bdrv_read(s->bdrv, sector, iobuf, PAGE_SECTORS + 2) < 0) {
- printf("%s: read error in sector %" PRIu64 "\n", __func__, sector);
- return;
- }
-
- mem_and(iobuf + soff, s->io, s->iolen);
-
- if (bdrv_write(s->bdrv, sector, iobuf, PAGE_SECTORS + 2) < 0) {
- printf("%s: write error in sector %" PRIu64 "\n", __func__, sector);
- }
- }
- s->offset = 0;
-}
-
-/* Erase a single block */
-static void glue(nand_blk_erase_, PAGE_SIZE)(NANDFlashState *s)
-{
- uint64_t i, page, addr;
- uint8_t iobuf[0x200] = { [0 ... 0x1ff] = 0xff, };
- addr = s->addr & ~((1 << (ADDR_SHIFT + s->erase_shift)) - 1);
-
- if (PAGE(addr) >= s->pages)
- return;
-
- if (!s->bdrv) {
- memset(s->storage + PAGE_START(addr),
- 0xff, (PAGE_SIZE + OOB_SIZE) << s->erase_shift);
- } else if (s->mem_oob) {
- memset(s->storage + (PAGE(addr) << OOB_SHIFT),
- 0xff, OOB_SIZE << s->erase_shift);
- i = SECTOR(addr);
- page = SECTOR(addr + (ADDR_SHIFT + s->erase_shift));
- for (; i < page; i ++)
- if (bdrv_write(s->bdrv, i, iobuf, 1) < 0) {
- printf("%s: write error in sector %" PRIu64 "\n", __func__, i);
- }
- } else {
- addr = PAGE_START(addr);
- page = addr >> 9;
- if (bdrv_read(s->bdrv, page, iobuf, 1) < 0) {
- printf("%s: read error in sector %" PRIu64 "\n", __func__, page);
- }
- memset(iobuf + (addr & 0x1ff), 0xff, (~addr & 0x1ff) + 1);
- if (bdrv_write(s->bdrv, page, iobuf, 1) < 0) {
- printf("%s: write error in sector %" PRIu64 "\n", __func__, page);
- }
-
- memset(iobuf, 0xff, 0x200);
- i = (addr & ~0x1ff) + 0x200;
- for (addr += ((PAGE_SIZE + OOB_SIZE) << s->erase_shift) - 0x200;
- i < addr; i += 0x200)
- if (bdrv_write(s->bdrv, i >> 9, iobuf, 1) < 0) {
- printf("%s: write error in sector %" PRIu64 "\n",
- __func__, i >> 9);
- }
-
- page = i >> 9;
- if (bdrv_read(s->bdrv, page, iobuf, 1) < 0) {
- printf("%s: read error in sector %" PRIu64 "\n", __func__, page);
- }
- memset(iobuf, 0xff, ((addr - 1) & 0x1ff) + 1);
- if (bdrv_write(s->bdrv, page, iobuf, 1) < 0) {
- printf("%s: write error in sector %" PRIu64 "\n", __func__, page);
- }
- }
-}
-
-static void glue(nand_blk_load_, PAGE_SIZE)(NANDFlashState *s,
- uint64_t addr, int offset)
-{
- if (PAGE(addr) >= s->pages)
- return;
-
- if (s->bdrv) {
- if (s->mem_oob) {
- if (bdrv_read(s->bdrv, SECTOR(addr), s->io, PAGE_SECTORS) < 0) {
- printf("%s: read error in sector %" PRIu64 "\n",
- __func__, SECTOR(addr));
- }
- memcpy(s->io + SECTOR_OFFSET(s->addr) + PAGE_SIZE,
- s->storage + (PAGE(s->addr) << OOB_SHIFT),
- OOB_SIZE);
- s->ioaddr = s->io + SECTOR_OFFSET(s->addr) + offset;
- } else {
- if (bdrv_read(s->bdrv, PAGE_START(addr) >> 9,
- s->io, (PAGE_SECTORS + 2)) < 0) {
- printf("%s: read error in sector %" PRIu64 "\n",
- __func__, PAGE_START(addr) >> 9);
- }
- s->ioaddr = s->io + (PAGE_START(addr) & 0x1ff) + offset;
- }
- } else {
- memcpy(s->io, s->storage + PAGE_START(s->addr) +
- offset, PAGE_SIZE + OOB_SIZE - offset);
- s->ioaddr = s->io;
- }
-}
-
-static void glue(nand_init_, PAGE_SIZE)(NANDFlashState *s)
-{
- s->oob_shift = PAGE_SHIFT - 5;
- s->pages = s->size >> PAGE_SHIFT;
- s->addr_shift = ADDR_SHIFT;
-
- s->blk_erase = glue(nand_blk_erase_, PAGE_SIZE);
- s->blk_write = glue(nand_blk_write_, PAGE_SIZE);
- s->blk_load = glue(nand_blk_load_, PAGE_SIZE);
-}
-
-# undef PAGE_SIZE
-# undef PAGE_SHIFT
-# undef PAGE_SECTORS
-# undef ADDR_SHIFT
-#endif /* NAND_IO */
generated by cgit v1.2.1 (git 2.18.0) at 2024-07-09 05:44:08 +0000