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intelfsh.cpp: add Fujitsu 29LV002TC flash

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This commit is contained in:
MetalliC 2019-12-20 01:20:55 +02:00
parent 9d255565ca
commit 7f249710ca
2 changed files with 48 additions and 2 deletions
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42
src/devices/machine/intelfsh.cpp
View File

@ -92,6 +92,7 @@ DEFINE_DEVICE_TYPE(AMD_29LV200T, amd_29lv200t_device, "amd_29l
DEFINE_DEVICE_TYPE(FUJITSU_29F160T, fujitsu_29f160t_device, "fujitsu_29f160t", "Fujitsu 29F160T Flash")
DEFINE_DEVICE_TYPE(FUJITSU_29F016A, fujitsu_29f016a_device, "fujitsu_29f016a", "Fujitsu 29F016A Flash")
DEFINE_DEVICE_TYPE(FUJITSU_29DL16X, fujitsu_29dl16x_device, "fujitsu_29dl16x", "Fujitsu 29DL16X Flash")
DEFINE_DEVICE_TYPE(FUJITSU_29LV002TC, fujitsu_29lv002tc_device, "fujitsu_29lv002tc", "Fujitsu 29LV002TC Flash")
DEFINE_DEVICE_TYPE(INTEL_E28F400B, intel_e28f400b_device, "intel_e28f400b", "Intel E28F400B Flash")
DEFINE_DEVICE_TYPE(MACRONIX_29L001MC, macronix_29l001mc_device, "macronix_29l001mc", "Macronix 29L001MC Flash")
DEFINE_DEVICE_TYPE(MACRONIX_29LV160TMC, macronix_29lv160tmc_device, "macronix_29lv160tmc", "Macronix 29LV160TMC Flash")
@ -286,6 +287,12 @@ intelfsh_device::intelfsh_device(const machine_config &mconfig, device_type type
m_maker_id = MFG_FUJITSU;
m_device_id = 0x35;
break;
case FLASH_FUJITSU_29LV002TC:
m_bits = 8;
m_size = 0x40000;
m_maker_id = MFG_FUJITSU;
m_device_id = 0x40;
break;
case FLASH_INTEL_E28F008SA:
m_bits = 8;
m_size = 0x100000;
@ -378,6 +385,9 @@ fujitsu_29f016a_device::fujitsu_29f016a_device(const machine_config &mconfig, co
fujitsu_29dl16x_device::fujitsu_29dl16x_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock)
: intelfsh8_device(mconfig, FUJITSU_29DL16X, tag, owner, clock, FLASH_FUJITSU_29DL16X) { }
fujitsu_29lv002tc_device::fujitsu_29lv002tc_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock)
: intelfsh8_device(mconfig, FUJITSU_29LV002TC, tag, owner, clock, FLASH_FUJITSU_29LV002TC) { }
sharp_lh28f016s_device::sharp_lh28f016s_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock)
: intelfsh8_device(mconfig, SHARP_LH28F016S, tag, owner, clock, FLASH_SHARP_LH28F016S) { }
@ -883,7 +893,14 @@ void intelfsh_device::write_full(uint32_t address, uint32_t data)
(( address & 0xfff ) == 0xaaa && ( data & 0xff ) == 0x10 ) )
{
// chip erase
memset(&m_data[0], 0xff, m_size);
if (m_maker_id == MFG_FUJITSU && m_device_id == 0x40)
{
// hardcoded for Dreamcast, TODO properly handle sector protection
memset(&m_data[0], 0xff, 0x3A000);
memset(&m_data[0x3C000], 0xff, 0x04000);
}
else
memset(&m_data[0], 0xff, m_size);
m_status = 1 << 3;
m_flash_mode = FM_ERASEAMD4;
@ -939,6 +956,23 @@ void intelfsh_device::write_full(uint32_t address, uint32_t data)
m_timer->adjust( attotime::from_msec( 500 ) );
}
}
else if (m_maker_id == MFG_FUJITSU && m_device_id == 0x40)
{
constexpr u32 sectors[] = { 0x10000, 0x10000, 0x10000, 0x08000, 0x02000, 0x02000, 0x4000 };
u32 sec_num = 0;
u32 toffset = base;
while (toffset >= sectors[sec_num])
toffset -= sectors[sec_num++];
u32 sec_len = sectors[sec_num];
if (sec_num != 5) // hardcoded for Dreamcast, TODO properly handle sector protection
{
memset(&m_data[base & ~(sec_len - 1)], 0xff, sec_len);
}
m_erase_sector = address & ~(sec_len - 1);
m_timer->adjust(attotime::from_seconds(1));
}
else
{
memset(&m_data[base & ~0xffff], 0xff, 64 * 1024);
@ -958,9 +992,13 @@ void intelfsh_device::write_full(uint32_t address, uint32_t data)
switch( m_bits )
{
case 8:
if (m_maker_id == MFG_FUJITSU && m_device_id == 0x40)
{
m_data[address] = data;
if (address < 0x3a000 || address >= 0x3c000) // hardcoded for Dreamcast, TODO properly handle sector protection
m_data[address] &= data;
}
else
m_data[address] = data;
break;
default:
logerror( "FM_BYTEPROGRAM not supported when m_bits == %d\n", m_bits );

8
src/devices/machine/intelfsh.h
View File

@ -20,6 +20,7 @@ public:
FLASH_FUJITSU_29F160T,
FLASH_FUJITSU_29F016A,
FLASH_FUJITSU_29DL16X,
FLASH_FUJITSU_29LV002TC,
FLASH_ATMEL_29C010,
FLASH_AMD_29F010,
FLASH_AMD_29F040,
@ -161,6 +162,12 @@ public:
fujitsu_29dl16x_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock = 0);
};
class fujitsu_29lv002tc_device : public intelfsh8_device
{
public:
fujitsu_29lv002tc_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock = 0);
};
class atmel_29c010_device : public intelfsh8_device
{
public:
@ -352,6 +359,7 @@ DECLARE_DEVICE_TYPE(AMD_29LV200T, amd_29lv200t_device)
DECLARE_DEVICE_TYPE(FUJITSU_29F160T, fujitsu_29f160t_device)
DECLARE_DEVICE_TYPE(FUJITSU_29F016A, fujitsu_29f016a_device)
DECLARE_DEVICE_TYPE(FUJITSU_29DL16X, fujitsu_29dl16x_device)
DECLARE_DEVICE_TYPE(FUJITSU_29LV002TC, fujitsu_29lv002tc_device)
DECLARE_DEVICE_TYPE(INTEL_E28F400B, intel_e28f400b_device)
DECLARE_DEVICE_TYPE(MACRONIX_29L001MC, macronix_29l001mc_device)
DECLARE_DEVICE_TYPE(MACRONIX_29LV160TMC, macronix_29lv160tmc_device)