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naomi: some fixes to dimm board (nw)

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This commit is contained in:
yz70s 2020-01-06 01:42:27 +01:00
parent 5b64a1d947
commit 9655b0c874
2 changed files with 12 additions and 10 deletions
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20
src/mame/machine/naomigd.cpp
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@ -712,14 +712,14 @@ WRITE64_MEMBER(naomi_gdrom_board::i2cmem_dimm_w)
picbus_io[0] = (uint8_t)(~data >> (16 + 5 * 2 - 3)) & 0x8; // clock only for now
picbus = (data >> 2) & 0xf;
picbus_pullup = (picbus_io[0] & picbus_io[1]) & 0xf; // high if both are inputs
// TODO: abort timeslice of sh4
m_maincpu->abort_timeslice();
machine().scheduler().boost_interleave(attotime::zero, attotime::from_msec(1));
}
else
{
picbus_used = false;
// TODO: check if the states should be inverted
m_eeprom->di_write((data & 0x4) ? ASSERT_LINE : CLEAR_LINE);
m_eeprom->cs_write((data & 0x10) ? CLEAR_LINE : ASSERT_LINE);
m_eeprom->cs_write((data & 0x10) ? ASSERT_LINE : CLEAR_LINE);
m_eeprom->clk_write((data & 0x8) ? ASSERT_LINE : CLEAR_LINE);
}
}
@ -741,7 +741,7 @@ WRITE8_MEMBER(naomi_gdrom_board::pic_dimm_w)
if (offset == 1)
{
picbus = data;
// TODO: abort timeslice of pic
m_securitycpu->abort_timeslice();
}
if (offset == 3)
{
@ -825,7 +825,8 @@ void naomi_gdrom_board::device_start()
netpic = picdata[0x6ee];
// set data for security pic rom
memcpy((uint8_t*)m_securitycpu->space(AS_PROGRAM).get_read_ptr(0), picdata, 0x400);
address_space &ps = m_securitycpu->space(AS_PROGRAM);
memcpy((uint8_t*)ps.get_read_ptr(0), picdata, 0x1000);
} else {
// use extracted pic data
// printf("This PIC key hasn't been converted to a proper PIC binary yet!\n");
@ -965,6 +966,7 @@ void naomi_gdrom_board::board_advance(uint32_t size)
}
#define CPU_CLOCK 200000000 // need to set the correct value here
#define PIC_CLOCK 20000000 // and here
void naomi_gdrom_board::device_add_mconfig(machine_config &config)
{
@ -981,10 +983,8 @@ void naomi_gdrom_board::device_add_mconfig(machine_config &config)
m_maincpu->set_sh4_clock(CPU_CLOCK);
m_maincpu->set_addrmap(AS_PROGRAM, &naomi_gdrom_board::sh4_map);
m_maincpu->set_addrmap(AS_IO, &naomi_gdrom_board::sh4_io_map);
m_maincpu->set_disable();
PIC16C621A(config, m_securitycpu, 2000000); // need to set the correct value for clock
PIC16C622(config, m_securitycpu, PIC_CLOCK);
m_securitycpu->set_addrmap(AS_IO, &naomi_gdrom_board::pic_map);
m_securitycpu->set_disable();
I2C_24C01(config, m_i2c0, 0);
m_i2c0->set_e0(0);
m_i2c0->set_wc(1);
@ -992,6 +992,8 @@ void naomi_gdrom_board::device_add_mconfig(machine_config &config)
m_i2c1->set_e0(1);
m_i2c1->set_wc(1);
EEPROM_93C46_8BIT(config, m_eeprom, 0);
m_maincpu->set_disable();
m_securitycpu->set_disable();
}
// DIMM firmwares:
@ -1045,7 +1047,7 @@ ROM_START( dimm )
ROMX_LOAD( "401_203.bin", 0x000000, 0x200000, CRC(a738ea1c) SHA1(edb52597108462bcea8eb2a47c19e51e5fb60638), ROM_BIOS(7))
// dynamically filled with data
ROM_REGION(0x400, "pic", ROMREGION_ERASE00)
ROM_REGION(0x1000, "pic", ROMREGION_ERASE00)
// filled with test data until actual dumps of serial memories are available
ROM_REGION(0x80, "i2c_0", ROMREGION_ERASE00)
ROM_FILL(0, 1, 0x40) ROM_FILL(1, 1, 0x00) ROM_FILL(2, 1, 0x01) ROM_FILL(3, 1, 0x02) ROM_FILL(4, 1, 0x03)

2
src/mame/machine/naomigd.h
View File

@ -95,7 +95,7 @@ private:
enum { FILENAME_LENGTH=24 };
required_device<sh4_device> m_maincpu;
required_device<pic16c621a_device> m_securitycpu;
required_device<pic16c622_device> m_securitycpu;
required_device<i2cmem_device> m_i2c0;
required_device<i2cmem_device> m_i2c1;
required_device<eeprom_serial_93cxx_device> m_eeprom;