// license:BSD-3-Clause
// copyright-holders:Aaron Giles
/*
Flash ROM emulation
Explicitly supports:
Intel 28F016S5 (byte-wide)
AMD/Fujitsu 29F016 (byte-wide)
Sharp LH28F400 (word-wide)
Flash ROMs use a standardized command set across manufacturers,
so this emulation should work even for non-Intel and non-Sharp chips
as long as the game doesn't query the maker ID.
*/
#include "emu.h"
#include "intelfsh.h"
//**************************************************************************
// CONSTANTS
//**************************************************************************
enum
{
FM_NORMAL, // normal read/write
FM_READID, // read ID
FM_READSTATUS, // read status
FM_WRITEPART1, // first half of programming, awaiting second
FM_CLEARPART1, // first half of clear, awaiting second
FM_SETMASTER, // first half of set master lock, awaiting on/off
FM_READAMDID1, // part 1 of alt ID sequence
FM_READAMDID2, // part 2 of alt ID sequence
FM_READAMDID3, // part 3 of alt ID sequence
FM_ERASEAMD1, // part 1 of AMD erase sequence
FM_ERASEAMD2, // part 2 of AMD erase sequence
FM_ERASEAMD3, // part 3 of AMD erase sequence
FM_ERASEAMD4, // part 4 of AMD erase sequence
FM_BYTEPROGRAM,
FM_BANKSELECT,
FM_WRITEPAGEATMEL
};
enum
{
MFG_ALLIANCE = 0x52,
MFG_AMD = 0x01,
MFG_AMIC = 0x37,
MFG_ATMEL = 0x1f,
MFG_BRIGHT = 0xad,
MFG_CATALYST = 0x31,
MFG_EON = 0x1c,
MFG_FUJITSU = 0x04,
MFG_GIGADEVICE = 0xc8,
MFG_HYUNDAI = 0xad,
MFG_INTEL = 0x89,
MFG_ISSI = 0xd5,
MFG_MACRONIX = 0xc2,
MFG_PANASONIC = 0x32,
MFG_PMC = 0x9d,
MFG_SANYO = 0x62,
MFG_SHARP = 0xb0,
MFG_SPANSION = 0x01,
MFG_SST = 0xbf,
MFG_ST = 0x20,
MFG_SYNCMOS = 0x40,
MFG_TI = 0x97,
MFG_TI_OLD = 0x01,
MFG_WINBOND_NEX = 0xef,
MFG_WINBOND = 0xda
};
//**************************************************************************
// GLOBAL VARIABLES
//**************************************************************************
// device type definition
const device_type INTEL_28F016S5 = device_creator<intel_28f016s5_device>;
const device_type SHARP_LH28F016S = device_creator<sharp_lh28f016s_device>;
const device_type SHARP_LH28F016S_16BIT = device_creator<sharp_lh28f016s_16bit_device>;
const device_type ATMEL_29C010 = device_creator<atmel_29c010_device>;
const device_type AMD_29F010 = device_creator<amd_29f010_device>;
const device_type AMD_29F040 = device_creator<amd_29f040_device>;
const device_type AMD_29F080 = device_creator<amd_29f080_device>;
const device_type AMD_29F400T = device_creator<amd_29f400t_device>;
const device_type AMD_29F800T = device_creator<amd_29f800t_device>;
const device_type AMD_29LV200T = device_creator<amd_29lv200t_device>;
const device_type FUJITSU_29F160T = device_creator<fujitsu_29f160t_device>;
const device_type FUJITSU_29F016A = device_creator<fujitsu_29f016a_device>;
const device_type FUJITSU_29DL16X = device_creator<fujitsu_29dl16x_device>;
const device_type INTEL_E28F400B = device_creator<intel_e28f400b_device>;
const device_type MACRONIX_29L001MC = device_creator<macronix_29l001mc_device>;
const device_type MACRONIX_29LV160TMC = device_creator<macronix_29lv160tmc_device>;
const device_type TMS_29F040 = device_creator<tms_29f040_device>;
const device_type PANASONIC_MN63F805MNP = device_creator<panasonic_mn63f805mnp_device>;
const device_type SANYO_LE26FV10N1TS = device_creator<sanyo_le26fv10n1ts_device>;
const device_type SST_28SF040 = device_creator<sst_28sf040_device>;
const device_type SST_39VF020 = device_creator<sst_39vf020_device>;
const device_type SHARP_LH28F400 = device_creator<sharp_lh28f400_device>;
const device_type INTEL_E28F008SA = device_creator<intel_e28f008sa_device>;
const device_type INTEL_TE28F160 = device_creator<intel_te28f160_device>;
const device_type INTEL_TE28F320 = device_creator<intel_te28f320_device>;
const device_type SHARP_UNK128MBIT = device_creator<sharp_unk128mbit_device>;
const device_type INTEL_28F320J3D = device_creator<intel_28f320j3d_device>;
const device_type INTEL_28F320J5 = device_creator<intel_28f320j5_device>;
const device_type SST_39VF400A = device_creator<sst_39vf400a_device>;
const device_type ATMEL_49F4096 = device_creator<atmel_49f4096_device>;
//**************************************************************************
// LIVE DEVICE
//**************************************************************************
//-------------------------------------------------
// intelfsh_device - constructor
//-------------------------------------------------
intelfsh_device::intelfsh_device(const machine_config &mconfig, device_type type, const char *name, const char *tag, device_t *owner, uint32_t clock, uint32_t variant, const char *shortname, const char *source)
: device_t(mconfig, type, name, tag, owner, clock, shortname, source),
device_nvram_interface(mconfig, *this),
m_region(*this, DEVICE_SELF),
m_type(variant),
m_size(0),
m_bits(8),
m_addrmask(0),
m_device_id(0),
m_maker_id(0),
m_sector_is_4k(false),
m_sector_is_16k(false),
m_top_boot_sector(false),
m_status(0x80),
m_erase_sector(0),
m_flash_mode(FM_NORMAL),
m_flash_master_lock(false),
m_timer(nullptr),
m_bank(0)
{
switch( variant )
{
case FLASH_INTEL_28F016S5:
case FLASH_SHARP_LH28F016S:
m_bits = 8;
m_size = 0x200000;
m_maker_id = MFG_INTEL;
m_device_id = 0xaa;
break;
case FLASH_SHARP_LH28F016S_16BIT:
m_bits = 16;
m_size = 0x200000;
m_maker_id = MFG_INTEL;
m_device_id = 0xaa;
break;
case FLASH_ATMEL_29C010:
m_bits = 8;
m_size = 0x20000;
m_page_size = 0x80;
m_maker_id = MFG_ATMEL;
m_device_id = 0xd5;
break;
case FLASH_ATMEL_49F4096:
m_bits = 16;
m_size = 0x80000;
m_maker_id = MFG_ATMEL;
m_device_id = 0x92;
m_sector_is_16k = true;
break;
case FLASH_AMD_29F010:
m_bits = 8;
m_size = 0x20000;
m_maker_id = MFG_AMD;
m_device_id = 0x20;
break;
case FLASH_AMD_29F040:
m_bits = 8;
m_size = 0x80000;
m_maker_id = MFG_AMD;
m_device_id = 0xa4;
break;
case FLASH_AMD_29F080:
m_bits = 8;
m_size = 0x100000;
m_addrmask = 0x7ff;
m_maker_id = MFG_AMD;
m_device_id = 0xd5;
break;
case FLASH_AMD_29F400T:
m_bits = 8;
m_size = 0x80000;
m_maker_id = MFG_AMD;
m_device_id = 0x23;
m_top_boot_sector = true;
break;
case FLASH_AMD_29F800T:
m_bits = 8;
m_size = 0x100000;
m_maker_id = MFG_AMD;
m_device_id = 0xda;
m_top_boot_sector = true;
break;
case FLASH_AMD_29LV200T:
m_bits = 8;
m_size = 0x40000;
m_maker_id = MFG_AMD;
m_device_id = 0x3b;
break;
case FLASH_INTEL_28F320J3D:
m_bits = 16;
m_size = 0x400000;
m_maker_id = MFG_INTEL;
m_device_id = 0x16;
m_sector_is_4k = true;
break;
case FLASH_INTEL_28F320J5: // funkball
m_bits = 16;
m_size = 0x400000;
m_maker_id = MFG_INTEL;
m_device_id = 0x14;
// m_sector_is_4k = true; 128kb?
break;
case FLASH_SST_39VF020:
m_bits = 8;
m_size = 0x40000;
m_maker_id = MFG_SST;
m_device_id = 0xd6;
m_sector_is_4k = true;
break;
case FLASH_SST_39VF400A:
m_bits = 16;
m_size = 0x80000;
m_maker_id = MFG_SST;
m_device_id = 0xd6;
m_sector_is_4k = true;
break;
case FLASH_SHARP_LH28F400:
m_bits = 16;
m_size = 0x80000;
m_maker_id = MFG_SHARP;
m_device_id = 0xed;
break;
case FLASH_INTEL_E28F400B:
m_bits = 16;
m_size = 0x80000;
m_maker_id = MFG_INTEL;
m_device_id = 0x4471;
break;
case FLASH_FUJITSU_29F160T:
m_bits = 8;
m_size = 0x200000;
m_maker_id = MFG_FUJITSU;
m_device_id = 0xad;
m_top_boot_sector = true;
break;
case FLASH_FUJITSU_29F016A:
m_bits = 8;
m_size = 0x200000;
m_maker_id = MFG_FUJITSU;
m_device_id = 0xad;
break;
case FLASH_FUJITSU_29DL16X:
m_bits = 8;
m_size = 0x200000;
m_maker_id = MFG_FUJITSU;
m_device_id = 0x35;
break;
case FLASH_INTEL_E28F008SA:
m_bits = 8;
m_size = 0x100000;
m_maker_id = MFG_INTEL;
m_device_id = 0xa2;
break;
case FLASH_INTEL_TE28F160:
m_bits = 16;
m_size = 0x200000;
m_maker_id = MFG_SHARP;
m_device_id = 0xd0;
break;
case FLASH_INTEL_TE28F320:
m_bits = 16;
m_size = 0x400000;
m_maker_id = MFG_INTEL;
m_device_id = 0x8896;
break;
case FLASH_SHARP_UNK128MBIT:
m_bits = 16;
m_size = 0x800000;
m_maker_id = MFG_SHARP;
m_device_id = 0xb0;
break;
case FLASH_MACRONIX_29L001MC:
m_bits = 8;
m_size = 0x20000;
m_maker_id = MFG_MACRONIX;
m_device_id = 0x51;
break;
case FLASH_MACRONIX_29LV160TMC:
m_bits = 8;
m_size = 0x20000;
m_maker_id = MFG_MACRONIX;
m_device_id = 0x49;
m_sector_is_16k = true;
break;
case FLASH_PANASONIC_MN63F805MNP:
m_bits = 8;
m_size = 0x10000;
m_maker_id = MFG_PANASONIC;
m_device_id = 0x1b;
m_sector_is_4k = true;
break;
case FLASH_SANYO_LE26FV10N1TS:
m_bits = 8;
m_size = 0x20000;
m_maker_id = MFG_SANYO;
m_device_id = 0x13;
m_sector_is_4k = true;
break;
case FLASH_SST_28SF040:
m_bits = 8;
m_size = 0x80000;
m_maker_id = MFG_SST;
m_device_id = 0x04;
break;
case FLASH_TMS_29F040:
m_bits = 8;
m_addrmask = 0x7fff;
m_size = 0x80000;
m_maker_id = MFG_AMD;
m_device_id = 0xa4;
break;
}
int addrbits;
for (addrbits = 24; addrbits > 0; addrbits--)
if ((m_size & (1 << addrbits)) != 0)
break;
}
intelfsh8_device::intelfsh8_device(const machine_config &mconfig, device_type type, const char *name, const char *tag, device_t *owner, uint32_t clock, uint32_t variant, const char *shortname, const char *source)
: intelfsh_device(mconfig, type, name, tag, owner, clock, variant, shortname, source) { }
intelfsh16_device::intelfsh16_device(const machine_config &mconfig, device_type type, const char *name, const char *tag, device_t *owner, uint32_t clock, uint32_t variant, const char *shortname, const char *source)
: intelfsh_device(mconfig, type, name, tag, owner, clock, variant, shortname, source) { }
intel_28f016s5_device::intel_28f016s5_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock)
: intelfsh8_device(mconfig, INTEL_28F016S5, "Intel 28F016S5 Flash", tag, owner, clock, FLASH_INTEL_28F016S5, "intel_28f016s5", __FILE__) { }
fujitsu_29f160t_device::fujitsu_29f160t_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock)
: intelfsh8_device(mconfig, FUJITSU_29F160T, "Fujitsu 29F160 Flash", tag, owner, clock, FLASH_FUJITSU_29F160T, "fujitsu_29f160t", __FILE__) { }
fujitsu_29f016a_device::fujitsu_29f016a_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock)
: intelfsh8_device(mconfig, FUJITSU_29F016A, "Fujitsu 29F016A Flash", tag, owner, clock, FLASH_FUJITSU_29F016A, "fujitsu_29f016a", __FILE__) { }
fujitsu_29dl16x_device::fujitsu_29dl16x_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock)
: intelfsh8_device(mconfig, FUJITSU_29DL16X, "Fujitsu 29DL16X Flash", tag, owner, clock, FLASH_FUJITSU_29DL16X, "fujitsu_29dl16x", __FILE__) { }
sharp_lh28f016s_device::sharp_lh28f016s_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock)
: intelfsh8_device(mconfig, SHARP_LH28F016S, "Sharp LH28F016S Flash", tag, owner, clock, FLASH_SHARP_LH28F016S, "sharp_lh28f016s", __FILE__) { }
sharp_lh28f016s_16bit_device::sharp_lh28f016s_16bit_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock)
: intelfsh16_device(mconfig, SHARP_LH28F016S_16BIT, "Sharp LH28F016S Flash (16-bit)", tag, owner, clock, FLASH_SHARP_LH28F016S_16BIT, "sharp_lh28f016s_16bit", __FILE__) { }
atmel_29c010_device::atmel_29c010_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock)
: intelfsh8_device(mconfig, ATMEL_29C010, "Atmel 29C010 Flash", tag, owner, clock, FLASH_ATMEL_29C010, "atmel_29c010", __FILE__) { }
atmel_49f4096_device::atmel_49f4096_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock)
: intelfsh16_device(mconfig, ATMEL_49F4096, "Atmel AT49F4096 Flash", tag, owner, clock, FLASH_ATMEL_49F4096, "atmel_49f4096", __FILE__) { }
amd_29f010_device::amd_29f010_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock)
: intelfsh8_device(mconfig, AMD_29F010, "AMD 29F010 Flash", tag, owner, clock, FLASH_AMD_29F010, "amd_29f010", __FILE__) { }
amd_29f040_device::amd_29f040_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock)
: intelfsh8_device(mconfig, AMD_29F040, "AMD 29F040 Flash", tag, owner, clock, FLASH_AMD_29F040, "amd_29f040", __FILE__) { }
amd_29f080_device::amd_29f080_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock)
: intelfsh8_device(mconfig, AMD_29F080, "AMD 29F080 Flash", tag, owner, clock, FLASH_AMD_29F080, "amd_29f080", __FILE__) { }
amd_29f400t_device::amd_29f400t_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock)
: intelfsh8_device(mconfig, AMD_29F400T, "AMD 29F400 Flash", tag, owner, clock, FLASH_AMD_29F400T, "amd_29f400t", __FILE__) { }
amd_29f800t_device::amd_29f800t_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock)
: intelfsh8_device(mconfig, AMD_29F800T, "AMD 29F800 Flash", tag, owner, clock, FLASH_AMD_29F800T, "amd_29f800t", __FILE__) { }
amd_29lv200t_device::amd_29lv200t_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock)
: intelfsh8_device(mconfig, AMD_29LV200T, "AMD 29LV200T Flash", tag, owner, clock, FLASH_AMD_29LV200T, "amd_29lv200t", __FILE__) { }
intel_e28f008sa_device::intel_e28f008sa_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock)
: intelfsh8_device(mconfig, INTEL_E28F008SA, "Intel E28F008SA Flash", tag, owner, clock, FLASH_INTEL_E28F008SA, "intel_e28f008sa", __FILE__) { }
macronix_29l001mc_device::macronix_29l001mc_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock)
: intelfsh8_device(mconfig, MACRONIX_29L001MC, "Macronix 29L001MC Flash", tag, owner, clock, FLASH_MACRONIX_29L001MC, "macronix_29l001mc", __FILE__) { }
macronix_29lv160tmc_device::macronix_29lv160tmc_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock)
: intelfsh8_device(mconfig, MACRONIX_29LV160TMC, "Macronix 29LV160TMC Flash", tag, owner, clock, FLASH_MACRONIX_29LV160TMC, "macronix_29lv160tmc", __FILE__) { }
panasonic_mn63f805mnp_device::panasonic_mn63f805mnp_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock)
: intelfsh8_device(mconfig, PANASONIC_MN63F805MNP, "Panasonic MN63F805MNP Flash", tag, owner, clock, FLASH_PANASONIC_MN63F805MNP, "panasonic_mn63f805mnp", __FILE__) { }
sanyo_le26fv10n1ts_device::sanyo_le26fv10n1ts_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock)
: intelfsh8_device(mconfig, SANYO_LE26FV10N1TS, "Sanyo LE26FV10N1TS Flash", tag, owner, clock, FLASH_SANYO_LE26FV10N1TS, "sanyo_le26fv10n1ts", __FILE__) { }
sst_28sf040_device::sst_28sf040_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock)
: intelfsh8_device(mconfig, SST_28SF040, "SST 28SF040 Flash", tag, owner, clock, FLASH_SST_28SF040, "sst_28sf040", __FILE__) { }
sst_39vf020_device::sst_39vf020_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock)
: intelfsh8_device(mconfig, SST_39VF020, "SST 39VF020 Flash", tag, owner, clock, FLASH_SST_39VF020, "sst_39vf020", __FILE__) { }
sharp_lh28f400_device::sharp_lh28f400_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock)
: intelfsh16_device(mconfig, SHARP_LH28F400, "Sharp LH28F400 Flash", tag, owner, clock, FLASH_SHARP_LH28F400, "sharp_lh28f400", __FILE__) { }
intel_te28f160_device::intel_te28f160_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock)
: intelfsh16_device(mconfig, INTEL_TE28F160, "Intel TE28F160 Flash", tag, owner, clock, FLASH_INTEL_TE28F160, "intel_te28f160", __FILE__) { }
intel_te28f320_device::intel_te28f320_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock)
: intelfsh16_device(mconfig, INTEL_TE28F320, "Intel TE28F320 Flash", tag, owner, clock, FLASH_INTEL_TE28F320, "intel_te28f320", __FILE__) { }
intel_e28f400b_device::intel_e28f400b_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock)
: intelfsh16_device(mconfig, INTEL_E28F400B, "Intel E28F400B Flash", tag, owner, clock, FLASH_INTEL_E28F400B, "intel_e28f400b", __FILE__) { }
sharp_unk128mbit_device::sharp_unk128mbit_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock)
: intelfsh16_device(mconfig, SHARP_UNK128MBIT, "Sharp Unknown 128Mbit Flash", tag, owner, clock, FLASH_SHARP_UNK128MBIT, "sharp_unk128mbit", __FILE__) { }
intel_28f320j3d_device::intel_28f320j3d_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock)
: intelfsh16_device(mconfig, INTEL_28F320J3D, "Intel 28F320J3D Flash", tag, owner, clock, FLASH_INTEL_28F320J3D, "intel_28f320j3d", __FILE__) { }
intel_28f320j5_device::intel_28f320j5_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock)
: intelfsh16_device(mconfig, INTEL_28F320J5, "Intel 28F320J3D_a Flash", tag, owner, clock, FLASH_INTEL_28F320J5, "intel_28f320j5", __FILE__) { }
sst_39vf400a_device::sst_39vf400a_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock)
: intelfsh16_device(mconfig, SST_39VF400A, "SST 39VF400A Flash", tag, owner, clock, FLASH_SST_39VF400A, "sst_39vf400a", __FILE__) { }
tms_29f040_device::tms_29f040_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock)
: intelfsh8_device(mconfig, TMS_29F040, "Texas Instruments 29F040 Flash", tag, owner, clock, FLASH_TMS_29F040, "tms_29f040", __FILE__) { }
//-------------------------------------------------
// device_start - device-specific startup
//-------------------------------------------------
void intelfsh_device::device_start()
{
m_data = std::make_unique<uint8_t []>(m_size);
m_timer = timer_alloc();
save_item( NAME(m_status) );
save_item( NAME(m_flash_mode) );
save_item( NAME(m_flash_master_lock) );
save_pointer( &m_data[0], "m_data", m_size);
}
//-------------------------------------------------
// device_timer - handler timer events
//-------------------------------------------------
void intelfsh_device::device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr)
{
switch( m_flash_mode )
{
case FM_READSTATUS:
m_status = 0x80;
break;
case FM_ERASEAMD4:
m_flash_mode = FM_NORMAL;
break;
}
}
//-------------------------------------------------
// nvram_default - called to initialize NVRAM to
// its default state
//-------------------------------------------------
void intelfsh_device::nvram_default()
{
// region always wins
if (m_region.found())
{
uint32_t bytes = m_region->bytes();
if (bytes > m_size)
bytes = m_size;
if (m_bits == 8)
{
for (offs_t offs = 0; offs < bytes; offs++)
m_data[offs] = m_region->as_u8(offs);
}
else
{
for (offs_t offs = 0; offs < bytes; offs += 2) {
uint16_t v = m_region->as_u16(offs / 2);
m_data[offs] = v >> 8;
m_data[offs+1] = v;
}
}
return;
}
// otherwise, default to 0xff
memset(&m_data[0], 0xff, m_size);
}
//-------------------------------------------------
// nvram_read - called to read NVRAM from the
// .nv file
//-------------------------------------------------
void intelfsh_device::nvram_read(emu_file &file)
{
file.read(&m_data[0], m_size);
}
//-------------------------------------------------
// nvram_write - called to write NVRAM to the
// .nv file
//-------------------------------------------------
void intelfsh_device::nvram_write(emu_file &file)
{
file.write(&m_data[0], m_size);
}
//-------------------------------------------------
// read_full - generic read, called by the
// bit-width-specific readers
//-------------------------------------------------
uint32_t intelfsh_device::read_full(uint32_t address)
{
uint32_t data = 0;
address += m_bank << 16;
switch( m_flash_mode )
{
default:
case FM_NORMAL:
switch( m_bits )
{
case 8:
data = m_data[address];
break;
case 16:
data = (m_data[address*2] << 8) | m_data[address*2+1];
break;
}
break;
case FM_READSTATUS:
data = m_status;
break;
case FM_READAMDID3:
if ((m_maker_id == MFG_FUJITSU && m_device_id == 0x35) || (m_maker_id == MFG_AMD && m_device_id == 0x3b))
{
// used in Fujitsu 29DL16X 8bits mode
// used in AMD 29LV200 8bits mode
switch (address)
{
case 0: data = m_maker_id; break;
case 2: data = m_device_id; break;
case 4: data = 0; break;
}
}
else
{
switch (address)
{
case 0: data = m_maker_id; break;
case 1: data = m_device_id; break;
case 2: data = 0; break;
}
}
break;
case FM_READID:
if (m_maker_id == MFG_INTEL && m_device_id == 0x16)
{
switch (address)
{
case 0: data = m_maker_id; break;
case 2: data = m_device_id; break;
case 4: data = 0; break;
}
}
else
{
switch (address)
{
case 0: // maker ID
data = m_maker_id;
break;
case 1: // chip ID
data = m_device_id;
break;
case 2: // block lock config
data = 0; // we don't support this yet
break;
case 3: // master lock config
if (m_flash_master_lock)
{
data = 1;
}
else
{
data = 0;
}
break;
}
}
break;
case FM_ERASEAMD4:
// reads outside of the erasing sector return normal data
if ((address < m_erase_sector) || (address >= m_erase_sector+(64*1024)))
{
switch( m_bits )
{
case 8:
data = m_data[address];
break;
case 16:
data = (m_data[address*2] << 8) | m_data[address*2+1];
break;
}
}
else
{
m_status ^= ( 1 << 6 ) | ( 1 << 2 );
data = m_status;
}
break;
}
//logerror( "intelflash_read( %08x ) %08x\n", address, data );
return data;
}
//-------------------------------------------------
// write_full - generic write, called by the
// bit-width-specific writers
//-------------------------------------------------
void intelfsh_device::write_full(uint32_t address, uint32_t data)
{
//logerror( "intelflash_write( %u : %08x, %08x )\n", m_flash_mode, address, data );
address += m_bank << 16;
switch( m_flash_mode )
{
case FM_NORMAL:
case FM_READSTATUS:
case FM_READID:
case FM_READAMDID3:
switch( data & 0xff )
{
case 0xf0:
case 0xff: // reset chip mode
m_flash_mode = FM_NORMAL;
break;
case 0x90: // read ID
m_flash_mode = FM_READID;
break;
case 0x40:
case 0x10: // program
m_flash_mode = FM_WRITEPART1;
break;
case 0x50: // clear status reg
m_status = 0x80;
m_flash_mode = FM_READSTATUS;
break;
case 0x20: // block erase
m_flash_mode = FM_CLEARPART1;
break;
case 0x60: // set master lock
m_flash_mode = FM_SETMASTER;
break;
case 0x70: // read status
m_flash_mode = FM_READSTATUS;
break;
case 0xaa: // AMD ID select part 1
if( ( address & 0xfff ) == 0x555 )
{
m_flash_mode = FM_READAMDID1;
}
else if( ( address & 0xfff ) == 0xaaa )
{
m_flash_mode = FM_READAMDID1;
}
break;
default:
logerror( "Unknown flash mode byte %x\n", data & 0xff );
break;
}
break;
case FM_READAMDID1:
if( ( address & 0xffff ) == 0x2aa && ( data & 0xff ) == 0x55 )
{
m_flash_mode = FM_READAMDID2;
}
else if( ( address & 0xffff ) == 0x2aaa && ( data & 0xff ) == 0x55 )
{
m_flash_mode = FM_READAMDID2;
}
else if( ( address & 0xfff ) == 0x555 && ( data & 0xff ) == 0x55 )
{
m_flash_mode = FM_READAMDID2;
}
// for AMD 29F080 address bits A11-A19 don't care, for TMS 29F040 address bits A15-A18 don't care
else if( ( address & m_addrmask ) == ( 0xaaaa & m_addrmask ) && ( data & 0xff ) == 0x55 && m_addrmask )
{
m_flash_mode = FM_READAMDID2;
}
else
{
logerror( "unexpected %08x=%02x in FM_READAMDID1\n", address, data & 0xff );
m_flash_mode = FM_NORMAL;
}
break;
case FM_READAMDID2:
if( ( address & 0xffff ) == 0x555 && ( data & 0xff ) == 0x90 )
{
m_flash_mode = FM_READAMDID3;
}
else if( ( address & 0xffff ) == 0x5555 && ( data & 0xff ) == 0x90 )
{
m_flash_mode = FM_READAMDID3;
}
else if( ( address & 0xfff ) == 0xaaa && ( data & 0xff ) == 0x90 )
{
m_flash_mode = FM_READAMDID3;
}
else if( ( address & 0xffff ) == 0x555 && ( data & 0xff ) == 0x80 )
{
m_flash_mode = FM_ERASEAMD1;
}
else if( ( address & 0xffff ) == 0x5555 && ( data & 0xff ) == 0x80 )
{
m_flash_mode = FM_ERASEAMD1;
}
else if( ( address & 0xfff ) == 0xaaa && ( data & 0xff ) == 0x80 )
{
m_flash_mode = FM_ERASEAMD1;
}
else if( ( address & 0xffff ) == 0x555 && ( data & 0xff ) == 0xa0 )
{
m_flash_mode = FM_BYTEPROGRAM;
}
else if( ( address & 0xffff ) == 0x5555 && ( data & 0xff ) == 0xa0 )
{
if (m_type == FLASH_ATMEL_29C010)
{
m_flash_mode = FM_WRITEPAGEATMEL;
m_byte_count = 0;
}
else
{
m_flash_mode = FM_BYTEPROGRAM;
}
}
else if( ( address & 0xfff ) == 0xaaa && ( data & 0xff ) == 0xa0 )
{
m_flash_mode = FM_BYTEPROGRAM;
}
else if( ( address & 0xffff ) == 0x555 && ( data & 0xff ) == 0xf0 )
{
m_flash_mode = FM_NORMAL;
}
else if( ( address & 0xffff ) == 0x5555 && ( data & 0xff ) == 0xf0 )
{
m_flash_mode = FM_NORMAL;
}
else if( ( address & 0xfff ) == 0xaaa && ( data & 0xff ) == 0xf0 )
{
m_flash_mode = FM_NORMAL;
}
else if( ( address & 0xffff ) == 0x5555 && ( data & 0xff ) == 0xb0 && m_maker_id == 0x62 && m_device_id == 0x13 )
{
m_flash_mode = FM_BANKSELECT;
}
// for AMD 29F080 address bits A11-A19 don't care, for TMS 29F040 address bits A15-A18 don't care
else if(( address & m_addrmask ) == ( 0x5555 & m_addrmask ) && ( data & 0xff ) == 0x80 && m_addrmask )
{
m_flash_mode = FM_ERASEAMD1;
}
else if(( address & m_addrmask ) == ( 0x5555 & m_addrmask ) && ( data & 0xff ) == 0x90 && m_addrmask )
{
m_flash_mode = FM_READAMDID3;
}
else if(( address & m_addrmask ) == ( 0x5555 & m_addrmask ) && ( data & 0xff ) == 0xa0 && m_addrmask )
{
m_flash_mode = FM_BYTEPROGRAM;
}
else if(( address & m_addrmask ) == ( 0x5555 & m_addrmask ) && ( data & 0xff ) == 0xf0 && m_addrmask )
{
m_flash_mode = FM_NORMAL;
}
else
{
logerror( "unexpected %08x=%02x in FM_READAMDID2\n", address, data & 0xff );
m_flash_mode = FM_NORMAL;
}
break;
case FM_ERASEAMD1:
if( ( address & 0xfff ) == 0x555 && ( data & 0xff ) == 0xaa )
{
m_flash_mode = FM_ERASEAMD2;
}
else if( ( address & 0xfff ) == 0xaaa && ( data & 0xff ) == 0xaa )
{
m_flash_mode = FM_ERASEAMD2;
}
else
{
logerror( "unexpected %08x=%02x in FM_ERASEAMD1\n", address, data & 0xff );
}
break;
case FM_ERASEAMD2:
if( ( address & 0xffff ) == 0x2aa && ( data & 0xff ) == 0x55 )
{
m_flash_mode = FM_ERASEAMD3;
}
else if( ( address & 0xffff ) == 0x2aaa && ( data & 0xff ) == 0x55 )
{
m_flash_mode = FM_ERASEAMD3;
}
else if( ( address & 0xfff ) == 0x555 && ( data & 0xff ) == 0x55 )
{
m_flash_mode = FM_ERASEAMD3;
}
else
{
logerror( "unexpected %08x=%02x in FM_ERASEAMD2\n", address, data & 0xff );
}
break;
case FM_ERASEAMD3:
if( (( address & 0xfff ) == 0x555 && ( data & 0xff ) == 0x10 ) ||
(( address & 0xfff ) == 0xaaa && ( data & 0xff ) == 0x10 ) )
{
// chip erase
memset(&m_data[0], 0xff, m_size);
m_status = 1 << 3;
m_flash_mode = FM_ERASEAMD4;
if (m_sector_is_4k)
{
m_timer->adjust( attotime::from_seconds( 1 ) );
}
else if(m_sector_is_16k)
{
m_timer->adjust( attotime::from_seconds( 4 ) );
}
else
{
m_timer->adjust( attotime::from_seconds( 16 ) );
}
}
else if( ( data & 0xff ) == 0x30 )
{
// sector erase
// clear the 4k/64k block containing the current address to all 0xffs
uint32_t base = address * ((m_bits == 16) ? 2 : 1);
if (m_sector_is_4k)
{
memset(&m_data[base & ~0xfff], 0xff, 4 * 1024);
m_erase_sector = address & ((m_bits == 16) ? ~0x7ff : ~0xfff);
m_timer->adjust( attotime::from_msec( 125 ) );
}
else if(m_sector_is_16k)
{
memset(&m_data[base & ~0x3fff], 0xff, 16 * 1024);
m_erase_sector = address & ((m_bits == 16) ? ~0x1fff : ~0x3fff);
m_timer->adjust( attotime::from_msec( 500 ) );
}
else if(m_top_boot_sector && address >= (m_size - 64*1024))
{
if (address >= (m_size - (16*1024)))
{
memset(&m_data[base & ~0x3fff], 0xff, 16 * 1024);
m_erase_sector = address & ((m_bits == 16) ? ~0x1fff : ~0x3fff);
m_timer->adjust( attotime::from_msec( 500 ) );
}
else if (address >= (m_size - (32*1024)))
{
memset(&m_data[base & ~0x1fff], 0xff, 8 * 1024);
m_erase_sector = address & ((m_bits == 16) ? ~0xfff : ~0x1fff);
m_timer->adjust( attotime::from_msec( 250 ) );
}
else
{
memset(&m_data[base & ~0x7fff], 0xff, 32 * 1024);
m_erase_sector = address & ((m_bits == 16) ? ~0x3fff : ~0x7fff);
m_timer->adjust( attotime::from_msec( 500 ) );
}
}
else
{
memset(&m_data[base & ~0xffff], 0xff, 64 * 1024);
m_erase_sector = address & ((m_bits == 16) ? ~0x7fff : ~0xffff);
m_timer->adjust( attotime::from_seconds( 1 ) );
}
m_status = 1 << 3;
m_flash_mode = FM_ERASEAMD4;
}
else
{
logerror( "unexpected %08x=%02x in FM_ERASEAMD3\n", address, data & 0xff );
}
break;
case FM_BYTEPROGRAM:
switch( m_bits )
{
case 8:
{
m_data[address] = data;
}
break;
default:
logerror( "FM_BYTEPROGRAM not supported when m_bits == %d\n", m_bits );
break;
}
m_flash_mode = FM_NORMAL;
break;
case FM_WRITEPART1:
switch( m_bits )
{
case 8:
m_data[address] = data;
break;
case 16:
m_data[address*2] = data >> 8;
m_data[address*2+1] = data;
break;
default:
logerror( "FM_WRITEPART1 not supported when m_bits == %d\n", m_bits );
break;
}
m_status = 0x80;
if (m_type == FLASH_SST_28SF040)
m_flash_mode = FM_NORMAL;
else
m_flash_mode = FM_READSTATUS;
break;
case FM_WRITEPAGEATMEL:
switch( m_bits )
{
case 8:
m_data[address] = data;
break;
case 16:
m_data[address*2] = data >> 8;
m_data[address*2+1] = data;
break;
default:
logerror( "FM_WRITEPAGEATMEL not supported when m_bits == %d\n", m_bits );
break;
}
m_byte_count++;
if (m_byte_count == m_page_size)
{
m_flash_mode = FM_NORMAL;
}
break;
case FM_CLEARPART1:
if( ( data & 0xff ) == 0xd0 )
{
if (m_type == FLASH_SST_28SF040)
{
// clear the 256 bytes block containing the current address to all 0xffs
uint32_t base = address * ((m_bits == 16) ? 2 : 1);
memset(&m_data[base & ~0xff], 0xff, 256);
m_timer->adjust( attotime::from_msec( 4 ) );
}
else if (m_type == FLASH_INTEL_E28F400B)
{
// 00000-03fff - 16KB boot block (may be write protected via external pins)
// 04000-05fff - 8KB parameter block
// 06000-07fff - 8KB parameter block
// 08000-1ffff - 96KB main block
// 20000-3ffff - 128KB main block
// 40000-5ffff - 128KB main block
// 60000-7ffff - 128KB main block
// erase duration is 0.3s for boot and parameter blocks, and 0.6s for main blocks
uint32_t base = (address & 0x3ffff) * 2;
int size, duration;
if (base < 0x4000)
{
base = 0;
size = 0x4000;
duration = 300;
}
else if (base < 0x8000)
{
base &= 0x6000;
size = 0x2000;
duration = 300;
}
else if (base < 0x20000)
{
base = 0x8000;
size = 0x18000;
duration = 600;
}
else
{
base &= 0x60000;
size = 0x20000;
duration = 600;
}
// clear the block containing the current address to all 0xffffs
memset(&m_data[base], 0xff, size);
m_timer->adjust( attotime::from_msec( duration ) );
}
else
{
// clear the 64k block containing the current address to all 0xffs
uint32_t base = address * ((m_bits == 16) ? 2 : 1);
memset(&m_data[base & ~0xffff], 0xff, 64 * 1024);
m_timer->adjust( attotime::from_seconds( 1 ) );
}
m_status = 0x00;
m_flash_mode = FM_READSTATUS;
break;
}
else
{
logerror( "unexpected %02x in FM_CLEARPART1\n", data & 0xff );
}
break;
case FM_SETMASTER:
switch( data & 0xff )
{
case 0xf1:
m_flash_master_lock = true;
break;
case 0xd0:
m_flash_master_lock = false;
break;
default:
logerror( "unexpected %08x=%02x in FM_SETMASTER:\n", address, data & 0xff );
break;
}
m_flash_mode = FM_NORMAL;
break;
case FM_BANKSELECT:
m_bank = data & 0xff;
m_flash_mode = FM_NORMAL;
break;
}
}