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hapyfish: correct flash IDs and flash switching, bootloader now loads Linux kernel and then nothing happens (nw)

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This commit is contained in:
arbee 2018-10-21 15:47:32 -04:00
parent d1ec0b957c
commit 688ce5bf93
1 changed files with 35 additions and 10 deletions
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45
src/mame/drivers/hapyfish.cpp
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@ -6,8 +6,7 @@
Skeleton driver adapted from mini2440.cpp
TODO: bootloader fails b/c it can't find the second NAND. Hookup in
s3c24xx may not be correct.
TODO: Linux kernel + initrd loads now but not much happens afterwards.
To see bootloader messages, uncomment the UART_PRINTF define in s3c24xx.hxx.
@ -145,24 +144,47 @@ READ32_MEMBER(hapyfish_state::s3c2440_core_pin_r)
WRITE8_MEMBER(hapyfish_state::s3c2440_nand_command_w )
{
printf("%08x to NAND command\n", data);
m_nand->command_w(data);
if ((m_port[8] & 0x1800) != 0)
{
m_nand->command_w(data);
}
else
{
m_nand2->command_w(data);
}
}
WRITE8_MEMBER(hapyfish_state::s3c2440_nand_address_w )
{
printf("%08x to NAND address\n", data);
m_nand->address_w(data);
if ((m_port[8] & 0x1800) != 0)
{
m_nand->address_w(data);
}
else
{
m_nand2->address_w(data);
}
}
READ8_MEMBER(hapyfish_state::s3c2440_nand_data_r )
{
return m_nand->data_r();
if ((m_port[8] & 0x1800) != 0)
{
return m_nand->data_r();
}
return m_nand2->data_r();
}
WRITE8_MEMBER(hapyfish_state::s3c2440_nand_data_w )
{
m_nand->data_w(data);
if ((m_port[8] & 0x1800) != 0)
{
m_nand->data_w(data);
return;
}
m_nand2->data_w(data);
}
// I2S
@ -189,12 +211,14 @@ void hapyfish_state::machine_start()
{
m_nand->set_data_ptr(memregion("nand")->base());
m_nand2->set_data_ptr(memregion("nand2")->base());
m_port[8] = 0x1800; // select NAND #1 (S3C2440 bootloader will happen before machine_reset())
}
void hapyfish_state::machine_reset()
{
m_maincpu->reset();
memset( m_port, 0, sizeof( m_port));
m_port[8] = 0x1800; // select NAND #1
}
/***************************************************************************
@ -251,11 +275,12 @@ MACHINE_CONFIG_START(hapyfish_state::hapyfish)
MCFG_S3C2440_NAND_DATA_W_CB(WRITE8(*this, hapyfish_state, s3c2440_nand_data_w))
MCFG_DEVICE_ADD("nand", NAND, 0)
MCFG_NAND_TYPE(K9F1G08U0B)
MCFG_NAND_TYPE(K9LAG08U0M)
MCFG_NAND_RNB_CALLBACK(WRITELINE("s3c2440", s3c2440_device, frnb_w))
MCFG_DEVICE_ADD("nand2", NAND, 0)
MCFG_NAND_TYPE(K9F1G08U0B)
MCFG_NAND_TYPE(K9LAG08U0M)
MCFG_NAND_RNB_CALLBACK(WRITELINE("s3c2440", s3c2440_device, frnb_w))
MACHINE_CONFIG_END
static INPUT_PORTS_START( hapyfish )