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Parallel flash bugfixes: 

- always need to register flash area back to IO_MEM_ROMD at reset time
- disabled buffered write as it's not actually supported
- don't check flash time at registration time


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@2678 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
j_mayer 2007-04-16 07:14:26 +00:00
parent a496775f87
commit 95d1f3edd5
1 changed files with 19 additions and 12 deletions
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31
hw/pflash_cfi02.c
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@ -208,19 +208,23 @@ static void pflash_write (pflash_t *pfl, target_ulong offset, uint32_t value,
/* WARNING: when the memory area is in ROMD mode, the offset is a
ram offset, not a physical address */
cmd = value;
if (pfl->cmd != 0xA0 && cmd == 0xF0) {
#if 0
DPRINTF("%s: flash reset asked (%02x %02x)\n",
__func__, pfl->cmd, cmd);
#endif
goto reset_flash;
}
DPRINTF("%s: offset " TARGET_FMT_lx " %08x %d %d\n", __func__,
offset, value, width, pfl->wcycle);
if (pfl->wcycle == 0)
offset -= (target_ulong)(long)pfl->storage;
else
offset -= pfl->base;
cmd = value;
DPRINTF("%s: offset " TARGET_FMT_lx " %08x %d\n", __func__,
offset, value, width);
if (pfl->cmd != 0xA0 && cmd == 0xF0) {
DPRINTF("%s: flash reset asked (%02x %02x)\n",
__func__, pfl->cmd, cmd);
goto reset_flash;
}
/* Set the device in I/O access mode */
cpu_register_physical_memory(pfl->base, pfl->total_len, pfl->fl_mem);
boff = offset & (pfl->sector_len - 1);
@ -416,10 +420,8 @@ static void pflash_write (pflash_t *pfl, target_ulong offset, uint32_t value,
/* Reset flash */
reset_flash:
if (pfl->wcycle != 0) {
cpu_register_physical_memory(pfl->base, pfl->total_len,
pfl->off | IO_MEM_ROMD | pfl->fl_mem);
}
cpu_register_physical_memory(pfl->base, pfl->total_len,
pfl->off | IO_MEM_ROMD | pfl->fl_mem);
pfl->bypass = 0;
pfl->wcycle = 0;
pfl->cmd = 0;
@ -530,14 +532,17 @@ pflash_t *pflash_register (target_ulong base, ram_addr_t off,
total_len = sector_len * 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
pfl = qemu_mallocz(sizeof(pflash_t));
if (pfl == NULL)
return NULL;
pfl->storage = phys_ram_base + off;
pfl->fl_mem = cpu_register_io_memory(0, pflash_read_ops, pflash_write_ops, pfl);
pfl->fl_mem = cpu_register_io_memory(0, pflash_read_ops, pflash_write_ops,
pfl);
pfl->off = off;
cpu_register_physical_memory(base, total_len,
off | pfl->fl_mem | IO_MEM_ROMD);
@ -613,7 +618,9 @@ pflash_t *pflash_register (target_ulong base, ram_addr_t off,
pfl->cfi_table[0x28] = 0x02;
pfl->cfi_table[0x29] = 0x00;
/* Max number of bytes in multi-bytes write */
pfl->cfi_table[0x2A] = 0x05;
/* 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;