2 * CFI parallel flash with Intel command set emulation
4 * Copyright (c) 2006 Thorsten Zitterell
5 * Copyright (c) 2005 Jocelyn Mayer
7 * This library is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2 of the License, or (at your option) any later version.
12 * This library is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with this library; if not, see <http://www.gnu.org/licenses/>.
22 * For now, this code can emulate flashes of 1, 2 or 4 bytes width.
23 * Supported commands/modes are:
30 * It does not support timings
31 * It does not support flash interleaving
32 * It does not implement software data protection as found in many real chips
33 * It does not implement erase suspend/resume commands
34 * It does not implement multiple sectors erase
36 * It does not implement much more ...
39 #include "qemu/osdep.h"
41 #include "hw/block/block.h"
42 #include "hw/block/flash.h"
43 #include "sysemu/block-backend.h"
44 #include "qapi/error.h"
45 #include "qemu/timer.h"
46 #include "qemu/bitops.h"
47 #include "qemu/host-utils.h"
49 #include "hw/sysbus.h"
50 #include "sysemu/sysemu.h"
53 /* #define PFLASH_DEBUG */
55 #define DPRINTF(fmt, ...) \
57 fprintf(stderr, "PFLASH: " fmt , ## __VA_ARGS__); \
60 #define DPRINTF(fmt, ...) do { } while (0)
64 #define PFLASH_SECURE 1
68 SysBusDevice parent_obj;
75 uint8_t device_width; /* If 0, device width not specified. */
76 uint8_t max_device_width; /* max device width in bytes */
78 uint8_t wcycle; /* if 0, the flash is read normally */
86 uint8_t cfi_table[0x52];
88 unsigned int writeblock_size;
93 VMChangeStateEntry *vmstate;
94 bool old_multiple_chip_handling;
97 static int pflash_post_load(void *opaque, int version_id);
99 static const VMStateDescription vmstate_pflash = {
100 .name = "pflash_cfi01",
102 .minimum_version_id = 1,
103 .post_load = pflash_post_load,
104 .fields = (VMStateField[]) {
105 VMSTATE_UINT8(wcycle, PFlashCFI01),
106 VMSTATE_UINT8(cmd, PFlashCFI01),
107 VMSTATE_UINT8(status, PFlashCFI01),
108 VMSTATE_UINT64(counter, PFlashCFI01),
109 VMSTATE_END_OF_LIST()
113 static void pflash_timer (void *opaque)
115 PFlashCFI01 *pfl = opaque;
117 trace_pflash_timer_expired(pfl->cmd);
120 memory_region_rom_device_set_romd(&pfl->mem, true);
125 /* Perform a CFI query based on the bank width of the flash.
126 * If this code is called we know we have a device_width set for
129 static uint32_t pflash_cfi_query(PFlashCFI01 *pfl, hwaddr offset)
135 /* Adjust incoming offset to match expected device-width
136 * addressing. CFI query addresses are always specified in terms of
137 * the maximum supported width of the device. This means that x8
138 * devices and x8/x16 devices in x8 mode behave differently. For
139 * devices that are not used at their max width, we will be
140 * provided with addresses that use higher address bits than
141 * expected (based on the max width), so we will shift them lower
142 * so that they will match the addresses used when
143 * device_width==max_device_width.
145 boff = offset >> (ctz32(pfl->bank_width) +
146 ctz32(pfl->max_device_width) - ctz32(pfl->device_width));
148 if (boff >= sizeof(pfl->cfi_table)) {
151 /* Now we will construct the CFI response generated by a single
152 * device, then replicate that for all devices that make up the
153 * bus. For wide parts used in x8 mode, CFI query responses
154 * are different than native byte-wide parts.
156 resp = pfl->cfi_table[boff];
157 if (pfl->device_width != pfl->max_device_width) {
158 /* The only case currently supported is x8 mode for a
161 if (pfl->device_width != 1 || pfl->bank_width > 4) {
162 DPRINTF("%s: Unsupported device configuration: "
163 "device_width=%d, max_device_width=%d\n",
164 __func__, pfl->device_width,
165 pfl->max_device_width);
168 /* CFI query data is repeated, rather than zero padded for
169 * wide devices used in x8 mode.
171 for (i = 1; i < pfl->max_device_width; i++) {
172 resp = deposit32(resp, 8 * i, 8, pfl->cfi_table[boff]);
175 /* Replicate responses for each device in bank. */
176 if (pfl->device_width < pfl->bank_width) {
177 for (i = pfl->device_width;
178 i < pfl->bank_width; i += pfl->device_width) {
179 resp = deposit32(resp, 8 * i, 8 * pfl->device_width, resp);
188 /* Perform a device id query based on the bank width of the flash. */
189 static uint32_t pflash_devid_query(PFlashCFI01 *pfl, hwaddr offset)
195 /* Adjust incoming offset to match expected device-width
196 * addressing. Device ID read addresses are always specified in
197 * terms of the maximum supported width of the device. This means
198 * that x8 devices and x8/x16 devices in x8 mode behave
199 * differently. For devices that are not used at their max width,
200 * we will be provided with addresses that use higher address bits
201 * than expected (based on the max width), so we will shift them
202 * lower so that they will match the addresses used when
203 * device_width==max_device_width.
205 boff = offset >> (ctz32(pfl->bank_width) +
206 ctz32(pfl->max_device_width) - ctz32(pfl->device_width));
208 /* Mask off upper bits which may be used in to query block
209 * or sector lock status at other addresses.
210 * Offsets 2/3 are block lock status, is not emulated.
212 switch (boff & 0xFF) {
215 trace_pflash_manufacturer_id(resp);
219 trace_pflash_device_id(resp);
222 trace_pflash_device_info(offset);
226 /* Replicate responses for each device in bank. */
227 if (pfl->device_width < pfl->bank_width) {
228 for (i = pfl->device_width;
229 i < pfl->bank_width; i += pfl->device_width) {
230 resp = deposit32(resp, 8 * i, 8 * pfl->device_width, resp);
237 static uint32_t pflash_data_read(PFlashCFI01 *pfl, hwaddr offset,
247 trace_pflash_data_read8(offset, ret);
251 ret = p[offset] << 8;
252 ret |= p[offset + 1];
255 ret |= p[offset + 1] << 8;
257 trace_pflash_data_read16(offset, ret);
261 ret = p[offset] << 24;
262 ret |= p[offset + 1] << 16;
263 ret |= p[offset + 2] << 8;
264 ret |= p[offset + 3];
267 ret |= p[offset + 1] << 8;
268 ret |= p[offset + 2] << 16;
269 ret |= p[offset + 3] << 24;
271 trace_pflash_data_read32(offset, ret);
274 DPRINTF("BUG in %s\n", __func__);
280 static uint32_t pflash_read(PFlashCFI01 *pfl, hwaddr offset,
287 trace_pflash_read(offset, pfl->cmd, width, pfl->wcycle);
290 /* This should never happen : reset state & treat it as a read */
291 DPRINTF("%s: unknown command state: %x\n", __func__, pfl->cmd);
294 /* fall through to read code */
296 /* Flash area read */
297 ret = pflash_data_read(pfl, offset, width, be);
299 case 0x10: /* Single byte program */
300 case 0x20: /* Block erase */
301 case 0x28: /* Block erase */
302 case 0x40: /* single byte program */
303 case 0x50: /* Clear status register */
304 case 0x60: /* Block /un)lock */
305 case 0x70: /* Status Register */
306 case 0xe8: /* Write block */
307 /* Status register read. Return status from each device in
311 if (pfl->device_width && width > pfl->device_width) {
312 int shift = pfl->device_width * 8;
313 while (shift + pfl->device_width * 8 <= width * 8) {
314 ret |= pfl->status << shift;
315 shift += pfl->device_width * 8;
317 } else if (!pfl->device_width && width > 2) {
318 /* Handle 32 bit flash cases where device width is not
319 * set. (Existing behavior before device width added.)
321 ret |= pfl->status << 16;
323 DPRINTF("%s: status %x\n", __func__, ret);
326 if (!pfl->device_width) {
327 /* Preserve old behavior if device width not specified */
328 boff = offset & 0xFF;
329 if (pfl->bank_width == 2) {
331 } else if (pfl->bank_width == 4) {
337 ret = pfl->ident0 << 8 | pfl->ident1;
338 trace_pflash_manufacturer_id(ret);
341 ret = pfl->ident2 << 8 | pfl->ident3;
342 trace_pflash_device_id(ret);
345 trace_pflash_device_info(boff);
350 /* If we have a read larger than the bank_width, combine multiple
351 * manufacturer/device ID queries into a single response.
354 for (i = 0; i < width; i += pfl->bank_width) {
355 ret = deposit32(ret, i * 8, pfl->bank_width * 8,
356 pflash_devid_query(pfl,
357 offset + i * pfl->bank_width));
361 case 0x98: /* Query mode */
362 if (!pfl->device_width) {
363 /* Preserve old behavior if device width not specified */
364 boff = offset & 0xFF;
365 if (pfl->bank_width == 2) {
367 } else if (pfl->bank_width == 4) {
371 if (boff < sizeof(pfl->cfi_table)) {
372 ret = pfl->cfi_table[boff];
377 /* If we have a read larger than the bank_width, combine multiple
378 * CFI queries into a single response.
381 for (i = 0; i < width; i += pfl->bank_width) {
382 ret = deposit32(ret, i * 8, pfl->bank_width * 8,
383 pflash_cfi_query(pfl,
384 offset + i * pfl->bank_width));
393 /* update flash content on disk */
394 static void pflash_update(PFlashCFI01 *pfl, int offset,
399 offset_end = offset + size;
400 /* widen to sector boundaries */
401 offset = QEMU_ALIGN_DOWN(offset, BDRV_SECTOR_SIZE);
402 offset_end = QEMU_ALIGN_UP(offset_end, BDRV_SECTOR_SIZE);
403 blk_pwrite(pfl->blk, offset, pfl->storage + offset,
404 offset_end - offset, 0);
408 static inline void pflash_data_write(PFlashCFI01 *pfl, hwaddr offset,
409 uint32_t value, int width, int be)
411 uint8_t *p = pfl->storage;
413 trace_pflash_data_write(offset, value, width, pfl->counter);
420 p[offset] = value >> 8;
421 p[offset + 1] = value;
424 p[offset + 1] = value >> 8;
429 p[offset] = value >> 24;
430 p[offset + 1] = value >> 16;
431 p[offset + 2] = value >> 8;
432 p[offset + 3] = value;
435 p[offset + 1] = value >> 8;
436 p[offset + 2] = value >> 16;
437 p[offset + 3] = value >> 24;
444 static void pflash_write(PFlashCFI01 *pfl, hwaddr offset,
445 uint32_t value, int width, int be)
452 trace_pflash_write(offset, value, width, pfl->wcycle);
454 /* Set the device in I/O access mode */
455 memory_region_rom_device_set_romd(&pfl->mem, false);
458 switch (pfl->wcycle) {
464 case 0x10: /* Single Byte Program */
465 case 0x40: /* Single Byte Program */
466 DPRINTF("%s: Single Byte Program\n", __func__);
468 case 0x20: /* Block erase */
470 offset &= ~(pfl->sector_len - 1);
472 DPRINTF("%s: block erase at " TARGET_FMT_plx " bytes %x\n",
473 __func__, offset, (unsigned)pfl->sector_len);
476 memset(p + offset, 0xff, pfl->sector_len);
477 pflash_update(pfl, offset, pfl->sector_len);
479 pfl->status |= 0x20; /* Block erase error */
481 pfl->status |= 0x80; /* Ready! */
483 case 0x50: /* Clear status bits */
484 DPRINTF("%s: Clear status bits\n", __func__);
487 case 0x60: /* Block (un)lock */
488 DPRINTF("%s: Block unlock\n", __func__);
490 case 0x70: /* Status Register */
491 DPRINTF("%s: Read status register\n", __func__);
494 case 0x90: /* Read Device ID */
495 DPRINTF("%s: Read Device information\n", __func__);
498 case 0x98: /* CFI query */
499 DPRINTF("%s: CFI query\n", __func__);
501 case 0xe8: /* Write to buffer */
502 DPRINTF("%s: Write to buffer\n", __func__);
503 /* FIXME should save @offset, @width for case 1+ */
504 qemu_log_mask(LOG_UNIMP,
505 "%s: Write to buffer emulation is flawed\n",
507 pfl->status |= 0x80; /* Ready! */
509 case 0xf0: /* Probe for AMD flash */
510 DPRINTF("%s: Probe for AMD flash\n", __func__);
512 case 0xff: /* Read array mode */
513 DPRINTF("%s: Read array mode\n", __func__);
523 case 0x10: /* Single Byte Program */
524 case 0x40: /* Single Byte Program */
525 DPRINTF("%s: Single Byte Program\n", __func__);
527 pflash_data_write(pfl, offset, value, width, be);
528 pflash_update(pfl, offset, width);
530 pfl->status |= 0x10; /* Programming error */
532 pfl->status |= 0x80; /* Ready! */
535 case 0x20: /* Block erase */
537 if (cmd == 0xd0) { /* confirm */
540 } else if (cmd == 0xff) { /* read array mode */
547 /* Mask writeblock size based on device width, or bank width if
548 * device width not specified.
550 /* FIXME check @offset, @width */
551 if (pfl->device_width) {
552 value = extract32(value, 0, pfl->device_width * 8);
554 value = extract32(value, 0, pfl->bank_width * 8);
556 DPRINTF("%s: block write of %x bytes\n", __func__, value);
557 pfl->counter = value;
564 } else if (cmd == 0x01) {
567 } else if (cmd == 0xff) {
570 DPRINTF("%s: Unknown (un)locking command\n", __func__);
578 DPRINTF("%s: leaving query mode\n", __func__);
587 case 0xe8: /* Block write */
588 /* FIXME check @offset, @width */
591 * FIXME writing straight to memory is *wrong*. We
592 * should write to a buffer, and flush it to memory
593 * only on confirm command (see below).
595 pflash_data_write(pfl, offset, value, width, be);
597 pfl->status |= 0x10; /* Programming error */
603 hwaddr mask = pfl->writeblock_size - 1;
606 DPRINTF("%s: block write finished\n", __func__);
609 /* Flush the entire write buffer onto backing storage. */
610 /* FIXME premature! */
611 pflash_update(pfl, offset & mask, pfl->writeblock_size);
613 pfl->status |= 0x10; /* Programming error */
623 case 3: /* Confirm mode */
625 case 0xe8: /* Block write */
627 /* FIXME this is where we should write out the buffer */
631 qemu_log_mask(LOG_UNIMP,
632 "%s: Aborting write to buffer not implemented,"
633 " the data is already written to storage!\n"
634 "Flash device reset into READ mode.\n",
644 /* Should never happen */
645 DPRINTF("%s: invalid write state\n", __func__);
651 qemu_log_mask(LOG_UNIMP, "%s: Unimplemented flash cmd sequence "
652 "(offset " TARGET_FMT_plx ", wcycle 0x%x cmd 0x%x value 0x%x)"
653 "\n", __func__, offset, pfl->wcycle, pfl->cmd, value);
656 trace_pflash_reset();
657 memory_region_rom_device_set_romd(&pfl->mem, true);
663 static MemTxResult pflash_mem_read_with_attrs(void *opaque, hwaddr addr, uint64_t *value,
664 unsigned len, MemTxAttrs attrs)
666 PFlashCFI01 *pfl = opaque;
667 bool be = !!(pfl->features & (1 << PFLASH_BE));
669 if ((pfl->features & (1 << PFLASH_SECURE)) && !attrs.secure) {
670 *value = pflash_data_read(opaque, addr, len, be);
672 *value = pflash_read(opaque, addr, len, be);
677 static MemTxResult pflash_mem_write_with_attrs(void *opaque, hwaddr addr, uint64_t value,
678 unsigned len, MemTxAttrs attrs)
680 PFlashCFI01 *pfl = opaque;
681 bool be = !!(pfl->features & (1 << PFLASH_BE));
683 if ((pfl->features & (1 << PFLASH_SECURE)) && !attrs.secure) {
686 pflash_write(opaque, addr, value, len, be);
691 static const MemoryRegionOps pflash_cfi01_ops = {
692 .read_with_attrs = pflash_mem_read_with_attrs,
693 .write_with_attrs = pflash_mem_write_with_attrs,
694 .endianness = DEVICE_NATIVE_ENDIAN,
697 static void pflash_cfi01_realize(DeviceState *dev, Error **errp)
699 PFlashCFI01 *pfl = PFLASH_CFI01(dev);
702 uint64_t blocks_per_device, sector_len_per_device, device_len;
704 Error *local_err = NULL;
706 if (pfl->sector_len == 0) {
707 error_setg(errp, "attribute \"sector-length\" not specified or zero.");
710 if (pfl->nb_blocs == 0) {
711 error_setg(errp, "attribute \"num-blocks\" not specified or zero.");
714 if (pfl->name == NULL) {
715 error_setg(errp, "attribute \"name\" not specified.");
719 total_len = pfl->sector_len * pfl->nb_blocs;
721 /* These are only used to expose the parameters of each device
722 * in the cfi_table[].
724 num_devices = pfl->device_width ? (pfl->bank_width / pfl->device_width) : 1;
725 if (pfl->old_multiple_chip_handling) {
726 blocks_per_device = pfl->nb_blocs / num_devices;
727 sector_len_per_device = pfl->sector_len;
729 blocks_per_device = pfl->nb_blocs;
730 sector_len_per_device = pfl->sector_len / num_devices;
732 device_len = sector_len_per_device * blocks_per_device;
734 memory_region_init_rom_device(
735 &pfl->mem, OBJECT(dev),
738 pfl->name, total_len, &local_err);
740 error_propagate(errp, local_err);
744 pfl->storage = memory_region_get_ram_ptr(&pfl->mem);
745 sysbus_init_mmio(SYS_BUS_DEVICE(dev), &pfl->mem);
749 pfl->ro = blk_is_read_only(pfl->blk);
750 perm = BLK_PERM_CONSISTENT_READ | (pfl->ro ? 0 : BLK_PERM_WRITE);
751 ret = blk_set_perm(pfl->blk, perm, BLK_PERM_ALL, errp);
760 if (!blk_check_size_and_read_all(pfl->blk, pfl->storage, total_len,
762 vmstate_unregister_ram(&pfl->mem, DEVICE(pfl));
767 /* Default to devices being used at their maximum device width. This was
768 * assumed before the device_width support was added.
770 if (!pfl->max_device_width) {
771 pfl->max_device_width = pfl->device_width;
774 pfl->timer = timer_new_ns(QEMU_CLOCK_VIRTUAL, pflash_timer, pfl);
778 /* Hardcoded CFI table */
779 /* Standard "QRY" string */
780 pfl->cfi_table[0x10] = 'Q';
781 pfl->cfi_table[0x11] = 'R';
782 pfl->cfi_table[0x12] = 'Y';
783 /* Command set (Intel) */
784 pfl->cfi_table[0x13] = 0x01;
785 pfl->cfi_table[0x14] = 0x00;
786 /* Primary extended table address (none) */
787 pfl->cfi_table[0x15] = 0x31;
788 pfl->cfi_table[0x16] = 0x00;
789 /* Alternate command set (none) */
790 pfl->cfi_table[0x17] = 0x00;
791 pfl->cfi_table[0x18] = 0x00;
792 /* Alternate extended table (none) */
793 pfl->cfi_table[0x19] = 0x00;
794 pfl->cfi_table[0x1A] = 0x00;
796 pfl->cfi_table[0x1B] = 0x45;
798 pfl->cfi_table[0x1C] = 0x55;
799 /* Vpp min (no Vpp pin) */
800 pfl->cfi_table[0x1D] = 0x00;
801 /* Vpp max (no Vpp pin) */
802 pfl->cfi_table[0x1E] = 0x00;
804 pfl->cfi_table[0x1F] = 0x07;
805 /* Timeout for min size buffer write */
806 pfl->cfi_table[0x20] = 0x07;
807 /* Typical timeout for block erase */
808 pfl->cfi_table[0x21] = 0x0a;
809 /* Typical timeout for full chip erase (4096 ms) */
810 pfl->cfi_table[0x22] = 0x00;
812 pfl->cfi_table[0x23] = 0x04;
813 /* Max timeout for buffer write */
814 pfl->cfi_table[0x24] = 0x04;
815 /* Max timeout for block erase */
816 pfl->cfi_table[0x25] = 0x04;
817 /* Max timeout for chip erase */
818 pfl->cfi_table[0x26] = 0x00;
820 pfl->cfi_table[0x27] = ctz32(device_len); /* + 1; */
821 /* Flash device interface (8 & 16 bits) */
822 pfl->cfi_table[0x28] = 0x02;
823 pfl->cfi_table[0x29] = 0x00;
824 /* Max number of bytes in multi-bytes write */
825 if (pfl->bank_width == 1) {
826 pfl->cfi_table[0x2A] = 0x08;
828 pfl->cfi_table[0x2A] = 0x0B;
830 pfl->writeblock_size = 1 << pfl->cfi_table[0x2A];
831 if (!pfl->old_multiple_chip_handling && num_devices > 1) {
832 pfl->writeblock_size *= num_devices;
835 pfl->cfi_table[0x2B] = 0x00;
836 /* Number of erase block regions (uniform) */
837 pfl->cfi_table[0x2C] = 0x01;
838 /* Erase block region 1 */
839 pfl->cfi_table[0x2D] = blocks_per_device - 1;
840 pfl->cfi_table[0x2E] = (blocks_per_device - 1) >> 8;
841 pfl->cfi_table[0x2F] = sector_len_per_device >> 8;
842 pfl->cfi_table[0x30] = sector_len_per_device >> 16;
845 pfl->cfi_table[0x31] = 'P';
846 pfl->cfi_table[0x32] = 'R';
847 pfl->cfi_table[0x33] = 'I';
849 pfl->cfi_table[0x34] = '1';
850 pfl->cfi_table[0x35] = '0';
852 pfl->cfi_table[0x36] = 0x00;
853 pfl->cfi_table[0x37] = 0x00;
854 pfl->cfi_table[0x38] = 0x00;
855 pfl->cfi_table[0x39] = 0x00;
857 pfl->cfi_table[0x3a] = 0x00;
859 pfl->cfi_table[0x3b] = 0x00;
860 pfl->cfi_table[0x3c] = 0x00;
862 pfl->cfi_table[0x3f] = 0x01; /* Number of protection fields */
865 static Property pflash_cfi01_properties[] = {
866 DEFINE_PROP_DRIVE("drive", PFlashCFI01, blk),
867 /* num-blocks is the number of blocks actually visible to the guest,
868 * ie the total size of the device divided by the sector length.
869 * If we're emulating flash devices wired in parallel the actual
870 * number of blocks per indvidual device will differ.
872 DEFINE_PROP_UINT32("num-blocks", PFlashCFI01, nb_blocs, 0),
873 DEFINE_PROP_UINT64("sector-length", PFlashCFI01, sector_len, 0),
874 /* width here is the overall width of this QEMU device in bytes.
875 * The QEMU device may be emulating a number of flash devices
876 * wired up in parallel; the width of each individual flash
877 * device should be specified via device-width. If the individual
878 * devices have a maximum width which is greater than the width
879 * they are being used for, this maximum width should be set via
880 * max-device-width (which otherwise defaults to device-width).
881 * So for instance a 32-bit wide QEMU flash device made from four
882 * 16-bit flash devices used in 8-bit wide mode would be configured
883 * with width = 4, device-width = 1, max-device-width = 2.
885 * If device-width is not specified we default to backwards
886 * compatible behaviour which is a bad emulation of two
887 * 16 bit devices making up a 32 bit wide QEMU device. This
888 * is deprecated for new uses of this device.
890 DEFINE_PROP_UINT8("width", PFlashCFI01, bank_width, 0),
891 DEFINE_PROP_UINT8("device-width", PFlashCFI01, device_width, 0),
892 DEFINE_PROP_UINT8("max-device-width", PFlashCFI01, max_device_width, 0),
893 DEFINE_PROP_BIT("big-endian", PFlashCFI01, features, PFLASH_BE, 0),
894 DEFINE_PROP_BIT("secure", PFlashCFI01, features, PFLASH_SECURE, 0),
895 DEFINE_PROP_UINT16("id0", PFlashCFI01, ident0, 0),
896 DEFINE_PROP_UINT16("id1", PFlashCFI01, ident1, 0),
897 DEFINE_PROP_UINT16("id2", PFlashCFI01, ident2, 0),
898 DEFINE_PROP_UINT16("id3", PFlashCFI01, ident3, 0),
899 DEFINE_PROP_STRING("name", PFlashCFI01, name),
900 DEFINE_PROP_BOOL("old-multiple-chip-handling", PFlashCFI01,
901 old_multiple_chip_handling, false),
902 DEFINE_PROP_END_OF_LIST(),
905 static void pflash_cfi01_class_init(ObjectClass *klass, void *data)
907 DeviceClass *dc = DEVICE_CLASS(klass);
909 dc->realize = pflash_cfi01_realize;
910 dc->props = pflash_cfi01_properties;
911 dc->vmsd = &vmstate_pflash;
912 set_bit(DEVICE_CATEGORY_STORAGE, dc->categories);
916 static const TypeInfo pflash_cfi01_info = {
917 .name = TYPE_PFLASH_CFI01,
918 .parent = TYPE_SYS_BUS_DEVICE,
919 .instance_size = sizeof(PFlashCFI01),
920 .class_init = pflash_cfi01_class_init,
923 static void pflash_cfi01_register_types(void)
925 type_register_static(&pflash_cfi01_info);
928 type_init(pflash_cfi01_register_types)
930 PFlashCFI01 *pflash_cfi01_register(hwaddr base,
936 uint16_t id0, uint16_t id1,
937 uint16_t id2, uint16_t id3,
940 DeviceState *dev = qdev_create(NULL, TYPE_PFLASH_CFI01);
943 qdev_prop_set_drive(dev, "drive", blk, &error_abort);
945 assert(size % sector_len == 0);
946 qdev_prop_set_uint32(dev, "num-blocks", size / sector_len);
947 qdev_prop_set_uint64(dev, "sector-length", sector_len);
948 qdev_prop_set_uint8(dev, "width", bank_width);
949 qdev_prop_set_bit(dev, "big-endian", !!be);
950 qdev_prop_set_uint16(dev, "id0", id0);
951 qdev_prop_set_uint16(dev, "id1", id1);
952 qdev_prop_set_uint16(dev, "id2", id2);
953 qdev_prop_set_uint16(dev, "id3", id3);
954 qdev_prop_set_string(dev, "name", name);
955 qdev_init_nofail(dev);
957 sysbus_mmio_map(SYS_BUS_DEVICE(dev), 0, base);
958 return PFLASH_CFI01(dev);
961 BlockBackend *pflash_cfi01_get_blk(PFlashCFI01 *fl)
966 MemoryRegion *pflash_cfi01_get_memory(PFlashCFI01 *fl)
971 static void postload_update_cb(void *opaque, int running, RunState state)
973 PFlashCFI01 *pfl = opaque;
975 /* This is called after bdrv_invalidate_cache_all. */
976 qemu_del_vm_change_state_handler(pfl->vmstate);
979 DPRINTF("%s: updating bdrv for %s\n", __func__, pfl->name);
980 pflash_update(pfl, 0, pfl->sector_len * pfl->nb_blocs);
983 static int pflash_post_load(void *opaque, int version_id)
985 PFlashCFI01 *pfl = opaque;
988 pfl->vmstate = qemu_add_vm_change_state_handler(postload_update_cb,