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Added ATMEL_29C020, added support for SDP & added missing state save registrations.

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This commit is contained in:
smf- 2024-10-25 12:22:03 +01:00
parent beb51eaa93
commit a005ad31c7
2 changed files with 55 additions and 19 deletions
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62
src/devices/machine/intelfsh.cpp
View File

@ -88,6 +88,7 @@ DEFINE_DEVICE_TYPE(INTEL_28F016S5, intel_28f016s5_device, "i
DEFINE_DEVICE_TYPE(SHARP_LH28F016S, sharp_lh28f016s_device, "sharp_lh28f016s", "Sharp LH28F016S Flash")
DEFINE_DEVICE_TYPE(SHARP_LH28F016S_16BIT, sharp_lh28f016s_16bit_device, "sharp_lh28f016s_16bit", "Sharp LH28F016S Flash (16-bit)")
DEFINE_DEVICE_TYPE(ATMEL_29C010, atmel_29c010_device, "atmel_29c010", "Atmel 29C010 Flash")
DEFINE_DEVICE_TYPE(ATMEL_29C020, atmel_29c020_device, "atmel_29c020", "Atmel 29C020 Flash")
DEFINE_DEVICE_TYPE(AMD_29F010, amd_29f010_device, "amd_29f010", "AMD 29F010 Flash")
DEFINE_DEVICE_TYPE(AMD_29F040, amd_29f040_device, "amd_29f040", "AMD 29F040 Flash")
DEFINE_DEVICE_TYPE(AMD_29F080, amd_29f080_device, "amd_29f080", "AMD 29F080 Flash")
@ -210,6 +211,9 @@ sharp_lh28f016s_16bit_device::sharp_lh28f016s_16bit_device(const machine_config
atmel_29c010_device::atmel_29c010_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock)
: intelfsh8_device(mconfig, ATMEL_29C010, tag, owner, clock, 0x20000, MFG_ATMEL, 0xd5) { m_page_size = 0x80; }
atmel_29c020_device::atmel_29c020_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock)
: intelfsh8_device(mconfig, ATMEL_29C020, tag, owner, clock, 0x40000, MFG_ATMEL, 0xda) { m_page_size = 0x100; }
atmel_49f4096_device::atmel_49f4096_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock)
: intelfsh16_device(mconfig, ATMEL_49F4096, tag, owner, clock, 0x80000, MFG_ATMEL, 0x92) { m_sector_is_16k = true; }
@ -334,8 +338,15 @@ void intelfsh_device::device_start()
m_timer = timer_alloc(FUNC(intelfsh_device::delay_tick), this);
save_item( NAME(m_status) );
save_item( NAME(m_erase_sector) );
save_item( NAME(m_flash_mode) );
save_item( NAME(m_flash_master_lock) );
save_item( NAME(m_bank) );
save_item( NAME(m_byte_count) );
save_item( NAME(m_sdp) );
save_item( NAME(m_write_buffer) );
save_item( NAME(m_write_buffer_start_address) );
save_item( NAME(m_write_buffer_count) );
save_item( NAME(m_fast_mode) );
save_pointer( &m_data[0], "m_data", m_size);
}
@ -699,8 +710,9 @@ void intelfsh_device::write_full(uint32_t address, uint32_t data)
}
else if( ( address & 0xffff ) == 0x5555 && ( data & 0xff ) == 0xa0 )
{
if (m_maker_id == MFG_ATMEL && m_device_id == 0xd5)
if (m_maker_id == MFG_ATMEL && (m_device_id == 0xd5 || m_device_id == 0xda))
{
m_sdp = true;
m_flash_mode = FM_WRITEPAGEATMEL;
m_byte_count = 0;
}
@ -913,6 +925,12 @@ void intelfsh_device::write_full(uint32_t address, uint32_t data)
m_status = 1 << 3;
m_flash_mode = FM_ERASEAMD4;
}
else if ((data & 0xff) == 0x20 && m_maker_id == MFG_ATMEL && (m_device_id == 0xd5 || m_device_id == 0xda))
{
m_sdp = false;
m_flash_mode = FM_WRITEPAGEATMEL;
m_byte_count = 0;
}
else
{
logerror( "unexpected %08x=%02x in FM_ERASEAMD3\n", address, data & 0xff );
@ -995,25 +1013,35 @@ void intelfsh_device::write_full(uint32_t address, uint32_t data)
m_flash_mode = FM_READSTATUS;
break;
case FM_WRITEPAGEATMEL:
switch( m_bits )
if (m_byte_count == 0 && !m_sdp && (address & 0xfff) == 0x555 && (data & 0xff) == 0xaa)
{
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_flash_mode = FM_READAMDID1;
}
m_byte_count++;
if (m_byte_count == m_page_size)
else
{
m_flash_mode = FM_NORMAL;
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)
{
if (m_sdp)
m_flash_mode = FM_NORMAL;
m_byte_count = 0;
}
}
break;
case FM_CLEARPART1:

12
src/devices/machine/intelfsh.h
View File

@ -49,7 +49,7 @@ protected:
bool m_sector_is_16k;
bool m_top_boot_sector;
bool m_bot_boot_sector;
uint8_t m_page_size;
uint16_t m_page_size;
// internal state
std::unique_ptr<uint8_t[]> m_data;
@ -59,7 +59,8 @@ protected:
bool m_flash_master_lock;
emu_timer * m_timer;
int32_t m_bank;
uint8_t m_byte_count;
uint16_t m_byte_count;
bool m_sdp;
uint8_t m_write_buffer[32];
uint32_t m_write_buffer_start_address;
@ -180,6 +181,12 @@ public:
amd_29lv200t_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock = 0);
};
class atmel_29c020_device : public intelfsh8_device
{
public:
atmel_29c020_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock = 0);
};
class sharp_lh28f016s_device : public intelfsh8_device
{
public:
@ -385,6 +392,7 @@ DECLARE_DEVICE_TYPE(INTEL_28F016S5, intel_28f016s5_device)
DECLARE_DEVICE_TYPE(SHARP_LH28F016S, sharp_lh28f016s_device)
DECLARE_DEVICE_TYPE(SHARP_LH28F016S_16BIT, sharp_lh28f016s_16bit_device)
DECLARE_DEVICE_TYPE(ATMEL_29C010, atmel_29c010_device)
DECLARE_DEVICE_TYPE(ATMEL_29C020, atmel_29c020_device)
DECLARE_DEVICE_TYPE(AMD_29F010, amd_29f010_device)
DECLARE_DEVICE_TYPE(AMD_29F040, amd_29f040_device)
DECLARE_DEVICE_TYPE(AMD_29F080, amd_29f080_device)