788 lines
24 KiB
C
788 lines
24 KiB
C
/*
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* CFI parallel flash with AMD command set emulation
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*
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* Copyright (c) 2005 Jocelyn Mayer
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, see <http://www.gnu.org/licenses/>.
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*/
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/*
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* For now, this code can emulate flashes of 1, 2 or 4 bytes width.
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* Supported commands/modes are:
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* - flash read
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* - flash write
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* - flash ID read
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* - sector erase
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* - chip erase
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* - unlock bypass command
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* - CFI queries
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*
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* It does not support flash interleaving.
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* It does not implement boot blocs with reduced size
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* It does not implement software data protection as found in many real chips
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* It does not implement erase suspend/resume commands
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* It does not implement multiple sectors erase
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*/
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#include "hw/hw.h"
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#include "hw/block/flash.h"
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#include "qemu/timer.h"
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#include "block/block.h"
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#include "exec/address-spaces.h"
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#include "qemu/host-utils.h"
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#include "hw/sysbus.h"
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//#define PFLASH_DEBUG
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#ifdef PFLASH_DEBUG
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#define DPRINTF(fmt, ...) \
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do { \
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fprintf(stderr "PFLASH: " fmt , ## __VA_ARGS__); \
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} while (0)
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#else
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#define DPRINTF(fmt, ...) do { } while (0)
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#endif
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#define PFLASH_LAZY_ROMD_THRESHOLD 42
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struct pflash_t {
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SysBusDevice busdev;
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BlockDriverState *bs;
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uint32_t sector_len;
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uint32_t nb_blocs;
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uint32_t chip_len;
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uint8_t mappings;
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uint8_t width;
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uint8_t be;
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int wcycle; /* if 0, the flash is read normally */
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int bypass;
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int ro;
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uint8_t cmd;
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uint8_t status;
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/* FIXME: implement array device properties */
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uint16_t ident0;
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uint16_t ident1;
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uint16_t ident2;
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uint16_t ident3;
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uint16_t unlock_addr0;
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uint16_t unlock_addr1;
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uint8_t cfi_len;
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uint8_t cfi_table[0x52];
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QEMUTimer *timer;
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/* The device replicates the flash memory across its memory space. Emulate
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* that by having a container (.mem) filled with an array of aliases
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* (.mem_mappings) pointing to the flash memory (.orig_mem).
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*/
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MemoryRegion mem;
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MemoryRegion *mem_mappings; /* array; one per mapping */
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MemoryRegion orig_mem;
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int rom_mode;
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int read_counter; /* used for lazy switch-back to rom mode */
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char *name;
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void *storage;
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};
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/*
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* Set up replicated mappings of the same region.
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*/
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static void pflash_setup_mappings(pflash_t *pfl)
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{
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unsigned i;
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hwaddr size = memory_region_size(&pfl->orig_mem);
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memory_region_init(&pfl->mem, OBJECT(pfl), "pflash", pfl->mappings * size);
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pfl->mem_mappings = g_new(MemoryRegion, pfl->mappings);
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for (i = 0; i < pfl->mappings; ++i) {
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memory_region_init_alias(&pfl->mem_mappings[i], OBJECT(pfl),
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"pflash-alias", &pfl->orig_mem, 0, size);
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memory_region_add_subregion(&pfl->mem, i * size, &pfl->mem_mappings[i]);
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}
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}
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static void pflash_register_memory(pflash_t *pfl, int rom_mode)
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{
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memory_region_rom_device_set_romd(&pfl->orig_mem, rom_mode);
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pfl->rom_mode = rom_mode;
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}
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static void pflash_timer (void *opaque)
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{
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pflash_t *pfl = opaque;
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DPRINTF("%s: command %02x done\n", __func__, pfl->cmd);
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/* Reset flash */
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pfl->status ^= 0x80;
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if (pfl->bypass) {
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pfl->wcycle = 2;
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} else {
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pflash_register_memory(pfl, 1);
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pfl->wcycle = 0;
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}
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pfl->cmd = 0;
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}
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static uint32_t pflash_read (pflash_t *pfl, hwaddr offset,
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int width, int be)
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{
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hwaddr boff;
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uint32_t ret;
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uint8_t *p;
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DPRINTF("%s: offset " TARGET_FMT_plx "\n", __func__, offset);
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ret = -1;
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/* Lazy reset to ROMD mode after a certain amount of read accesses */
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if (!pfl->rom_mode && pfl->wcycle == 0 &&
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++pfl->read_counter > PFLASH_LAZY_ROMD_THRESHOLD) {
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pflash_register_memory(pfl, 1);
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}
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offset &= pfl->chip_len - 1;
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boff = offset & 0xFF;
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if (pfl->width == 2)
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boff = boff >> 1;
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else if (pfl->width == 4)
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boff = boff >> 2;
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switch (pfl->cmd) {
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default:
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/* This should never happen : reset state & treat it as a read*/
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DPRINTF("%s: unknown command state: %x\n", __func__, pfl->cmd);
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pfl->wcycle = 0;
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pfl->cmd = 0;
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/* fall through to the read code */
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case 0x80:
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/* We accept reads during second unlock sequence... */
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case 0x00:
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flash_read:
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/* Flash area read */
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p = pfl->storage;
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switch (width) {
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case 1:
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ret = p[offset];
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// DPRINTF("%s: data offset %08x %02x\n", __func__, offset, ret);
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break;
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case 2:
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if (be) {
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ret = p[offset] << 8;
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ret |= p[offset + 1];
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} else {
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ret = p[offset];
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ret |= p[offset + 1] << 8;
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}
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// DPRINTF("%s: data offset %08x %04x\n", __func__, offset, ret);
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break;
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case 4:
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if (be) {
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ret = p[offset] << 24;
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ret |= p[offset + 1] << 16;
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ret |= p[offset + 2] << 8;
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ret |= p[offset + 3];
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} else {
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ret = p[offset];
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ret |= p[offset + 1] << 8;
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ret |= p[offset + 2] << 16;
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ret |= p[offset + 3] << 24;
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}
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// DPRINTF("%s: data offset %08x %08x\n", __func__, offset, ret);
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break;
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}
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break;
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case 0x90:
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/* flash ID read */
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switch (boff) {
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case 0x00:
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case 0x01:
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ret = boff & 0x01 ? pfl->ident1 : pfl->ident0;
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break;
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case 0x02:
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ret = 0x00; /* Pretend all sectors are unprotected */
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break;
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case 0x0E:
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case 0x0F:
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ret = boff & 0x01 ? pfl->ident3 : pfl->ident2;
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if (ret == (uint8_t)-1) {
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goto flash_read;
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}
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break;
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default:
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goto flash_read;
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}
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DPRINTF("%s: ID " TARGET_FMT_plx " %x\n", __func__, boff, ret);
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break;
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case 0xA0:
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case 0x10:
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case 0x30:
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/* Status register read */
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ret = pfl->status;
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DPRINTF("%s: status %x\n", __func__, ret);
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/* Toggle bit 6 */
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pfl->status ^= 0x40;
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break;
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case 0x98:
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/* CFI query mode */
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if (boff > pfl->cfi_len)
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ret = 0;
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else
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ret = pfl->cfi_table[boff];
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break;
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}
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return ret;
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}
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/* update flash content on disk */
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static void pflash_update(pflash_t *pfl, int offset,
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int size)
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{
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int offset_end;
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if (pfl->bs) {
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offset_end = offset + size;
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/* round to sectors */
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offset = offset >> 9;
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offset_end = (offset_end + 511) >> 9;
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bdrv_write(pfl->bs, offset, pfl->storage + (offset << 9),
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offset_end - offset);
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}
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}
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static void pflash_write (pflash_t *pfl, hwaddr offset,
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uint32_t value, int width, int be)
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{
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hwaddr boff;
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uint8_t *p;
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uint8_t cmd;
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cmd = value;
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if (pfl->cmd != 0xA0 && cmd == 0xF0) {
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#if 0
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DPRINTF("%s: flash reset asked (%02x %02x)\n",
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__func__, pfl->cmd, cmd);
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#endif
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goto reset_flash;
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}
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DPRINTF("%s: offset " TARGET_FMT_plx " %08x %d %d\n", __func__,
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offset, value, width, pfl->wcycle);
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offset &= pfl->chip_len - 1;
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DPRINTF("%s: offset " TARGET_FMT_plx " %08x %d\n", __func__,
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offset, value, width);
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boff = offset & (pfl->sector_len - 1);
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if (pfl->width == 2)
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boff = boff >> 1;
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else if (pfl->width == 4)
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boff = boff >> 2;
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switch (pfl->wcycle) {
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case 0:
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/* Set the device in I/O access mode if required */
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if (pfl->rom_mode)
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pflash_register_memory(pfl, 0);
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pfl->read_counter = 0;
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/* We're in read mode */
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check_unlock0:
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if (boff == 0x55 && cmd == 0x98) {
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enter_CFI_mode:
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/* Enter CFI query mode */
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pfl->wcycle = 7;
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pfl->cmd = 0x98;
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return;
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}
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if (boff != pfl->unlock_addr0 || cmd != 0xAA) {
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DPRINTF("%s: unlock0 failed " TARGET_FMT_plx " %02x %04x\n",
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__func__, boff, cmd, pfl->unlock_addr0);
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goto reset_flash;
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}
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DPRINTF("%s: unlock sequence started\n", __func__);
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break;
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case 1:
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/* We started an unlock sequence */
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check_unlock1:
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if (boff != pfl->unlock_addr1 || cmd != 0x55) {
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DPRINTF("%s: unlock1 failed " TARGET_FMT_plx " %02x\n", __func__,
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boff, cmd);
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goto reset_flash;
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}
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DPRINTF("%s: unlock sequence done\n", __func__);
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break;
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case 2:
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/* We finished an unlock sequence */
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if (!pfl->bypass && boff != pfl->unlock_addr0) {
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DPRINTF("%s: command failed " TARGET_FMT_plx " %02x\n", __func__,
|
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boff, cmd);
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goto reset_flash;
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}
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switch (cmd) {
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case 0x20:
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pfl->bypass = 1;
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goto do_bypass;
|
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case 0x80:
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case 0x90:
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case 0xA0:
|
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pfl->cmd = cmd;
|
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DPRINTF("%s: starting command %02x\n", __func__, cmd);
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break;
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default:
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DPRINTF("%s: unknown command %02x\n", __func__, cmd);
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goto reset_flash;
|
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}
|
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break;
|
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case 3:
|
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switch (pfl->cmd) {
|
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case 0x80:
|
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/* We need another unlock sequence */
|
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goto check_unlock0;
|
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case 0xA0:
|
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DPRINTF("%s: write data offset " TARGET_FMT_plx " %08x %d\n",
|
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__func__, offset, value, width);
|
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p = pfl->storage;
|
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if (!pfl->ro) {
|
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switch (width) {
|
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case 1:
|
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p[offset] &= value;
|
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pflash_update(pfl, offset, 1);
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break;
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case 2:
|
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if (be) {
|
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p[offset] &= value >> 8;
|
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p[offset + 1] &= value;
|
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} else {
|
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p[offset] &= value;
|
|
p[offset + 1] &= value >> 8;
|
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}
|
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pflash_update(pfl, offset, 2);
|
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break;
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case 4:
|
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if (be) {
|
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p[offset] &= value >> 24;
|
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p[offset + 1] &= value >> 16;
|
|
p[offset + 2] &= value >> 8;
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p[offset + 3] &= value;
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} else {
|
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p[offset] &= value;
|
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p[offset + 1] &= value >> 8;
|
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p[offset + 2] &= value >> 16;
|
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p[offset + 3] &= value >> 24;
|
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}
|
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pflash_update(pfl, offset, 4);
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break;
|
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}
|
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}
|
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pfl->status = 0x00 | ~(value & 0x80);
|
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/* Let's pretend write is immediate */
|
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if (pfl->bypass)
|
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goto do_bypass;
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goto reset_flash;
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case 0x90:
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if (pfl->bypass && cmd == 0x00) {
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/* Unlock bypass reset */
|
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goto reset_flash;
|
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}
|
|
/* We can enter CFI query mode from autoselect mode */
|
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if (boff == 0x55 && cmd == 0x98)
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goto enter_CFI_mode;
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/* No break here */
|
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default:
|
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DPRINTF("%s: invalid write for command %02x\n",
|
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__func__, pfl->cmd);
|
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goto reset_flash;
|
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}
|
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case 4:
|
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switch (pfl->cmd) {
|
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case 0xA0:
|
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/* Ignore writes while flash data write is occurring */
|
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/* As we suppose write is immediate, this should never happen */
|
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return;
|
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case 0x80:
|
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goto check_unlock1;
|
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default:
|
|
/* Should never happen */
|
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DPRINTF("%s: invalid command state %02x (wc 4)\n",
|
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__func__, pfl->cmd);
|
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goto reset_flash;
|
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}
|
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break;
|
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case 5:
|
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switch (cmd) {
|
|
case 0x10:
|
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if (boff != pfl->unlock_addr0) {
|
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DPRINTF("%s: chip erase: invalid address " TARGET_FMT_plx "\n",
|
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__func__, offset);
|
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goto reset_flash;
|
|
}
|
|
/* Chip erase */
|
|
DPRINTF("%s: start chip erase\n", __func__);
|
|
if (!pfl->ro) {
|
|
memset(pfl->storage, 0xFF, pfl->chip_len);
|
|
pflash_update(pfl, 0, pfl->chip_len);
|
|
}
|
|
pfl->status = 0x00;
|
|
/* Let's wait 5 seconds before chip erase is done */
|
|
qemu_mod_timer(pfl->timer,
|
|
qemu_get_clock_ns(vm_clock) + (get_ticks_per_sec() * 5));
|
|
break;
|
|
case 0x30:
|
|
/* Sector erase */
|
|
p = pfl->storage;
|
|
offset &= ~(pfl->sector_len - 1);
|
|
DPRINTF("%s: start sector erase at " TARGET_FMT_plx "\n", __func__,
|
|
offset);
|
|
if (!pfl->ro) {
|
|
memset(p + offset, 0xFF, pfl->sector_len);
|
|
pflash_update(pfl, offset, pfl->sector_len);
|
|
}
|
|
pfl->status = 0x00;
|
|
/* Let's wait 1/2 second before sector erase is done */
|
|
qemu_mod_timer(pfl->timer,
|
|
qemu_get_clock_ns(vm_clock) + (get_ticks_per_sec() / 2));
|
|
break;
|
|
default:
|
|
DPRINTF("%s: invalid command %02x (wc 5)\n", __func__, cmd);
|
|
goto reset_flash;
|
|
}
|
|
pfl->cmd = cmd;
|
|
break;
|
|
case 6:
|
|
switch (pfl->cmd) {
|
|
case 0x10:
|
|
/* Ignore writes during chip erase */
|
|
return;
|
|
case 0x30:
|
|
/* Ignore writes during sector erase */
|
|
return;
|
|
default:
|
|
/* Should never happen */
|
|
DPRINTF("%s: invalid command state %02x (wc 6)\n",
|
|
__func__, pfl->cmd);
|
|
goto reset_flash;
|
|
}
|
|
break;
|
|
case 7: /* Special value for CFI queries */
|
|
DPRINTF("%s: invalid write in CFI query mode\n", __func__);
|
|
goto reset_flash;
|
|
default:
|
|
/* Should never happen */
|
|
DPRINTF("%s: invalid write state (wc 7)\n", __func__);
|
|
goto reset_flash;
|
|
}
|
|
pfl->wcycle++;
|
|
|
|
return;
|
|
|
|
/* Reset flash */
|
|
reset_flash:
|
|
pfl->bypass = 0;
|
|
pfl->wcycle = 0;
|
|
pfl->cmd = 0;
|
|
return;
|
|
|
|
do_bypass:
|
|
pfl->wcycle = 2;
|
|
pfl->cmd = 0;
|
|
}
|
|
|
|
|
|
static uint32_t pflash_readb_be(void *opaque, hwaddr addr)
|
|
{
|
|
return pflash_read(opaque, addr, 1, 1);
|
|
}
|
|
|
|
static uint32_t pflash_readb_le(void *opaque, hwaddr addr)
|
|
{
|
|
return pflash_read(opaque, addr, 1, 0);
|
|
}
|
|
|
|
static uint32_t pflash_readw_be(void *opaque, hwaddr addr)
|
|
{
|
|
pflash_t *pfl = opaque;
|
|
|
|
return pflash_read(pfl, addr, 2, 1);
|
|
}
|
|
|
|
static uint32_t pflash_readw_le(void *opaque, hwaddr addr)
|
|
{
|
|
pflash_t *pfl = opaque;
|
|
|
|
return pflash_read(pfl, addr, 2, 0);
|
|
}
|
|
|
|
static uint32_t pflash_readl_be(void *opaque, hwaddr addr)
|
|
{
|
|
pflash_t *pfl = opaque;
|
|
|
|
return pflash_read(pfl, addr, 4, 1);
|
|
}
|
|
|
|
static uint32_t pflash_readl_le(void *opaque, hwaddr addr)
|
|
{
|
|
pflash_t *pfl = opaque;
|
|
|
|
return pflash_read(pfl, addr, 4, 0);
|
|
}
|
|
|
|
static void pflash_writeb_be(void *opaque, hwaddr addr,
|
|
uint32_t value)
|
|
{
|
|
pflash_write(opaque, addr, value, 1, 1);
|
|
}
|
|
|
|
static void pflash_writeb_le(void *opaque, hwaddr addr,
|
|
uint32_t value)
|
|
{
|
|
pflash_write(opaque, addr, value, 1, 0);
|
|
}
|
|
|
|
static void pflash_writew_be(void *opaque, hwaddr addr,
|
|
uint32_t value)
|
|
{
|
|
pflash_t *pfl = opaque;
|
|
|
|
pflash_write(pfl, addr, value, 2, 1);
|
|
}
|
|
|
|
static void pflash_writew_le(void *opaque, hwaddr addr,
|
|
uint32_t value)
|
|
{
|
|
pflash_t *pfl = opaque;
|
|
|
|
pflash_write(pfl, addr, value, 2, 0);
|
|
}
|
|
|
|
static void pflash_writel_be(void *opaque, hwaddr addr,
|
|
uint32_t value)
|
|
{
|
|
pflash_t *pfl = opaque;
|
|
|
|
pflash_write(pfl, addr, value, 4, 1);
|
|
}
|
|
|
|
static void pflash_writel_le(void *opaque, hwaddr addr,
|
|
uint32_t value)
|
|
{
|
|
pflash_t *pfl = opaque;
|
|
|
|
pflash_write(pfl, addr, value, 4, 0);
|
|
}
|
|
|
|
static const MemoryRegionOps pflash_cfi02_ops_be = {
|
|
.old_mmio = {
|
|
.read = { pflash_readb_be, pflash_readw_be, pflash_readl_be, },
|
|
.write = { pflash_writeb_be, pflash_writew_be, pflash_writel_be, },
|
|
},
|
|
.endianness = DEVICE_NATIVE_ENDIAN,
|
|
};
|
|
|
|
static const MemoryRegionOps pflash_cfi02_ops_le = {
|
|
.old_mmio = {
|
|
.read = { pflash_readb_le, pflash_readw_le, pflash_readl_le, },
|
|
.write = { pflash_writeb_le, pflash_writew_le, pflash_writel_le, },
|
|
},
|
|
.endianness = DEVICE_NATIVE_ENDIAN,
|
|
};
|
|
|
|
static int pflash_cfi02_init(SysBusDevice *dev)
|
|
{
|
|
pflash_t *pfl = FROM_SYSBUS(typeof(*pfl), dev);
|
|
uint32_t chip_len;
|
|
int ret;
|
|
|
|
chip_len = pfl->sector_len * pfl->nb_blocs;
|
|
/* XXX: to be fixed */
|
|
#if 0
|
|
if (total_len != (8 * 1024 * 1024) && total_len != (16 * 1024 * 1024) &&
|
|
total_len != (32 * 1024 * 1024) && total_len != (64 * 1024 * 1024))
|
|
return NULL;
|
|
#endif
|
|
|
|
memory_region_init_rom_device(&pfl->orig_mem, OBJECT(pfl), pfl->be ?
|
|
&pflash_cfi02_ops_be : &pflash_cfi02_ops_le,
|
|
pfl, pfl->name, chip_len);
|
|
vmstate_register_ram(&pfl->orig_mem, DEVICE(pfl));
|
|
pfl->storage = memory_region_get_ram_ptr(&pfl->orig_mem);
|
|
pfl->chip_len = chip_len;
|
|
if (pfl->bs) {
|
|
/* read the initial flash content */
|
|
ret = bdrv_read(pfl->bs, 0, pfl->storage, chip_len >> 9);
|
|
if (ret < 0) {
|
|
g_free(pfl);
|
|
return 1;
|
|
}
|
|
}
|
|
|
|
pflash_setup_mappings(pfl);
|
|
pfl->rom_mode = 1;
|
|
sysbus_init_mmio(dev, &pfl->mem);
|
|
|
|
if (pfl->bs) {
|
|
pfl->ro = bdrv_is_read_only(pfl->bs);
|
|
} else {
|
|
pfl->ro = 0;
|
|
}
|
|
|
|
pfl->timer = qemu_new_timer_ns(vm_clock, pflash_timer, pfl);
|
|
pfl->wcycle = 0;
|
|
pfl->cmd = 0;
|
|
pfl->status = 0;
|
|
/* Hardcoded CFI table (mostly from SG29 Spansion flash) */
|
|
pfl->cfi_len = 0x52;
|
|
/* Standard "QRY" string */
|
|
pfl->cfi_table[0x10] = 'Q';
|
|
pfl->cfi_table[0x11] = 'R';
|
|
pfl->cfi_table[0x12] = 'Y';
|
|
/* Command set (AMD/Fujitsu) */
|
|
pfl->cfi_table[0x13] = 0x02;
|
|
pfl->cfi_table[0x14] = 0x00;
|
|
/* Primary extended table address */
|
|
pfl->cfi_table[0x15] = 0x31;
|
|
pfl->cfi_table[0x16] = 0x00;
|
|
/* Alternate command set (none) */
|
|
pfl->cfi_table[0x17] = 0x00;
|
|
pfl->cfi_table[0x18] = 0x00;
|
|
/* Alternate extended table (none) */
|
|
pfl->cfi_table[0x19] = 0x00;
|
|
pfl->cfi_table[0x1A] = 0x00;
|
|
/* Vcc min */
|
|
pfl->cfi_table[0x1B] = 0x27;
|
|
/* Vcc max */
|
|
pfl->cfi_table[0x1C] = 0x36;
|
|
/* Vpp min (no Vpp pin) */
|
|
pfl->cfi_table[0x1D] = 0x00;
|
|
/* Vpp max (no Vpp pin) */
|
|
pfl->cfi_table[0x1E] = 0x00;
|
|
/* Reserved */
|
|
pfl->cfi_table[0x1F] = 0x07;
|
|
/* Timeout for min size buffer write (NA) */
|
|
pfl->cfi_table[0x20] = 0x00;
|
|
/* Typical timeout for block erase (512 ms) */
|
|
pfl->cfi_table[0x21] = 0x09;
|
|
/* Typical timeout for full chip erase (4096 ms) */
|
|
pfl->cfi_table[0x22] = 0x0C;
|
|
/* Reserved */
|
|
pfl->cfi_table[0x23] = 0x01;
|
|
/* Max timeout for buffer write (NA) */
|
|
pfl->cfi_table[0x24] = 0x00;
|
|
/* Max timeout for block erase */
|
|
pfl->cfi_table[0x25] = 0x0A;
|
|
/* Max timeout for chip erase */
|
|
pfl->cfi_table[0x26] = 0x0D;
|
|
/* Device size */
|
|
pfl->cfi_table[0x27] = ctz32(chip_len);
|
|
/* Flash device interface (8 & 16 bits) */
|
|
pfl->cfi_table[0x28] = 0x02;
|
|
pfl->cfi_table[0x29] = 0x00;
|
|
/* Max number of bytes in multi-bytes write */
|
|
/* XXX: disable buffered write as it's not supported */
|
|
// pfl->cfi_table[0x2A] = 0x05;
|
|
pfl->cfi_table[0x2A] = 0x00;
|
|
pfl->cfi_table[0x2B] = 0x00;
|
|
/* Number of erase block regions (uniform) */
|
|
pfl->cfi_table[0x2C] = 0x01;
|
|
/* Erase block region 1 */
|
|
pfl->cfi_table[0x2D] = pfl->nb_blocs - 1;
|
|
pfl->cfi_table[0x2E] = (pfl->nb_blocs - 1) >> 8;
|
|
pfl->cfi_table[0x2F] = pfl->sector_len >> 8;
|
|
pfl->cfi_table[0x30] = pfl->sector_len >> 16;
|
|
|
|
/* Extended */
|
|
pfl->cfi_table[0x31] = 'P';
|
|
pfl->cfi_table[0x32] = 'R';
|
|
pfl->cfi_table[0x33] = 'I';
|
|
|
|
pfl->cfi_table[0x34] = '1';
|
|
pfl->cfi_table[0x35] = '0';
|
|
|
|
pfl->cfi_table[0x36] = 0x00;
|
|
pfl->cfi_table[0x37] = 0x00;
|
|
pfl->cfi_table[0x38] = 0x00;
|
|
pfl->cfi_table[0x39] = 0x00;
|
|
|
|
pfl->cfi_table[0x3a] = 0x00;
|
|
|
|
pfl->cfi_table[0x3b] = 0x00;
|
|
pfl->cfi_table[0x3c] = 0x00;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static Property pflash_cfi02_properties[] = {
|
|
DEFINE_PROP_DRIVE("drive", struct pflash_t, bs),
|
|
DEFINE_PROP_UINT32("num-blocks", struct pflash_t, nb_blocs, 0),
|
|
DEFINE_PROP_UINT32("sector-length", struct pflash_t, sector_len, 0),
|
|
DEFINE_PROP_UINT8("width", struct pflash_t, width, 0),
|
|
DEFINE_PROP_UINT8("mappings", struct pflash_t, mappings, 0),
|
|
DEFINE_PROP_UINT8("big-endian", struct pflash_t, be, 0),
|
|
DEFINE_PROP_UINT16("id0", struct pflash_t, ident0, 0),
|
|
DEFINE_PROP_UINT16("id1", struct pflash_t, ident1, 0),
|
|
DEFINE_PROP_UINT16("id2", struct pflash_t, ident2, 0),
|
|
DEFINE_PROP_UINT16("id3", struct pflash_t, ident3, 0),
|
|
DEFINE_PROP_UINT16("unlock-addr0", struct pflash_t, unlock_addr0, 0),
|
|
DEFINE_PROP_UINT16("unlock-addr1", struct pflash_t, unlock_addr1, 0),
|
|
DEFINE_PROP_STRING("name", struct pflash_t, name),
|
|
DEFINE_PROP_END_OF_LIST(),
|
|
};
|
|
|
|
static void pflash_cfi02_class_init(ObjectClass *klass, void *data)
|
|
{
|
|
DeviceClass *dc = DEVICE_CLASS(klass);
|
|
SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass);
|
|
|
|
k->init = pflash_cfi02_init;
|
|
dc->props = pflash_cfi02_properties;
|
|
}
|
|
|
|
static const TypeInfo pflash_cfi02_info = {
|
|
.name = "cfi.pflash02",
|
|
.parent = TYPE_SYS_BUS_DEVICE,
|
|
.instance_size = sizeof(struct pflash_t),
|
|
.class_init = pflash_cfi02_class_init,
|
|
};
|
|
|
|
static void pflash_cfi02_register_types(void)
|
|
{
|
|
type_register_static(&pflash_cfi02_info);
|
|
}
|
|
|
|
type_init(pflash_cfi02_register_types)
|
|
|
|
pflash_t *pflash_cfi02_register(hwaddr base,
|
|
DeviceState *qdev, const char *name,
|
|
hwaddr size,
|
|
BlockDriverState *bs, uint32_t sector_len,
|
|
int nb_blocs, int nb_mappings, int width,
|
|
uint16_t id0, uint16_t id1,
|
|
uint16_t id2, uint16_t id3,
|
|
uint16_t unlock_addr0, uint16_t unlock_addr1,
|
|
int be)
|
|
{
|
|
DeviceState *dev = qdev_create(NULL, "cfi.pflash02");
|
|
SysBusDevice *busdev = SYS_BUS_DEVICE(dev);
|
|
pflash_t *pfl = (pflash_t *)object_dynamic_cast(OBJECT(dev),
|
|
"cfi.pflash02");
|
|
|
|
if (bs && qdev_prop_set_drive(dev, "drive", bs)) {
|
|
abort();
|
|
}
|
|
qdev_prop_set_uint32(dev, "num-blocks", nb_blocs);
|
|
qdev_prop_set_uint32(dev, "sector-length", sector_len);
|
|
qdev_prop_set_uint8(dev, "width", width);
|
|
qdev_prop_set_uint8(dev, "mappings", nb_mappings);
|
|
qdev_prop_set_uint8(dev, "big-endian", !!be);
|
|
qdev_prop_set_uint16(dev, "id0", id0);
|
|
qdev_prop_set_uint16(dev, "id1", id1);
|
|
qdev_prop_set_uint16(dev, "id2", id2);
|
|
qdev_prop_set_uint16(dev, "id3", id3);
|
|
qdev_prop_set_uint16(dev, "unlock-addr0", unlock_addr0);
|
|
qdev_prop_set_uint16(dev, "unlock-addr1", unlock_addr1);
|
|
qdev_prop_set_string(dev, "name", name);
|
|
qdev_init_nofail(dev);
|
|
|
|
sysbus_mmio_map(busdev, 0, base);
|
|
return pfl;
|
|
}
|