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nforcepc: add a serial presence detect memory (nw)

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The kind used in ddr dimms
The data used is from a Hynix HYMD532M646C6-D43H
This commit is contained in:
yz70s 2019-03-16 19:21:34 +01:00
parent 6605110fad
commit 2335f8d8b0
2 changed files with 76 additions and 6 deletions
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62
src/mame/drivers/nforcepc.cpp
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@ -14,6 +14,7 @@
- An IDE hard disk
- A floppy disk drive
- A keyboard
- A ddr dimm memory module
Later add:
- A Nvidia NV25 based AGP video card
@ -27,6 +28,14 @@
#include "includes/xbox_pci.h"
#include "includes/nforcepc.h"
// for now let's use this as the contents of the spd chip in the ddr dimm memory module
static const uint8_t test_spd_data[] = {
0x80,0x08,0x07,0x0D,0x0A,0x01,0x40,0x00,0x04,0x75,0x75,0x00,0x82,0x10,0x00,0x01,0x0E,0x04,0x0C,0x01,0x02,0x20,0xC0,0xA0,0x75,0x00,
0x00,0x50,0x3C,0x50,0x2D,0x40,0x90,0x90,0x50,0x50,0x00,0x00,0x00,0x00,0x00,0x41,0x4B,0x30,0x32,0x75,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xEA,0xAD,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x48,0x59,0x4D,0x44,0x35,
0x33,0x32,0x4D,0x36,0x34,0x36,0x43,0x36,0x2D,0x48,0x20,0x20,0x20
};
/*
Pci devices
*/
@ -101,7 +110,11 @@ WRITE8_MEMBER(crush11_host_device::test_w)
logerror("test = %02x\n", data);
}
// device connected to SMBus
/*
Ddevices connected to SMBus
*/
// access logger
DEFINE_DEVICE_TYPE(SMBUS_LOGGER, smbus_logger_device, "smbus_logger", "SMBUS LOGGER")
@ -131,6 +144,40 @@ void smbus_logger_device::device_reset()
{
}
// read-only data
DEFINE_DEVICE_TYPE(SMBUS_ROM, smbus_rom_device, "smbus_rom", "SMBUS ROM")
smbus_rom_device::smbus_rom_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock) :
device_t(mconfig, SMBUS_ROM, tag, owner, clock)
{
}
smbus_rom_device::smbus_rom_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock, const uint8_t *data, int size) :
smbus_rom_device(mconfig, tag, owner, clock)
{
buffer = data;
buffer_size = size;
}
int smbus_rom_device::execute_command(int command, int rw, int data)
{
if ((rw == 1) && (command < buffer_size) && (buffer != nullptr))
{
logerror("smbus rom read from %02x %02x\n", command, buffer[command]);
return buffer[command];
}
return 0;
}
void smbus_rom_device::device_start()
{
}
void smbus_rom_device::device_reset()
{
}
// Asus AS99127F chip
DEFINE_DEVICE_TYPE(AS99127F, as99127f_device, "as99127f", "Asus AS99127F")
@ -243,7 +290,7 @@ nforcepc_state::nforcepc_state(const machine_config &mconfig, device_type type,
driver_device(mconfig, type, tag),
m_maincpu(*this, "maincpu"),
isalpc(*this, ":pci:01.0"),
m_as99127f(*this, ":pci:01.1:2d")
m_as99127f(*this, ":pci:01.1:12d")
{
}
@ -313,10 +360,13 @@ void nforcepc_state::nforcepc(machine_config &config)
isa.boot_state_hook().set(FUNC(nforcepc_state::boot_state_award_w));
isa.interrupt_output().set(FUNC(nforcepc_state::maincpu_interrupt));
MCPX_SMBUS(config, ":pci:01.1", 0); // 10de:01b4 NVIDIA Corporation nForce PCI System Management (SMBus)
SMBUS_LOGGER(config, ":pci:01.1:08", 0);
AS99127F(config, ":pci:01.1:2d", 0);
AS99127F_SENSOR2(config, ":pci:01.1:48", 0);
AS99127F_SENSOR3(config, ":pci:01.1:49", 0);
SMBUS_ROM(config, ":pci:01.1:050", 0, test_spd_data, sizeof(test_spd_data)); // these 3 are on smbus number 0
SMBUS_LOGGER(config, ":pci:01.1:051", 0);
SMBUS_LOGGER(config, ":pci:01.1:052", 0);
SMBUS_LOGGER(config, ":pci:01.1:108", 0); // these 4 are on smbus number 1
AS99127F(config, ":pci:01.1:12d", 0);
AS99127F_SENSOR2(config, ":pci:01.1:148", 0);
AS99127F_SENSOR3(config, ":pci:01.1:149", 0);
/*10de:01c2 NVIDIA Corporation nForce USB Controller
10de:01c2 NVIDIA Corporation nForce USB Controller
10de:01b0 NVIDIA Corporation nForce Audio Processing Unit

20
src/mame/includes/nforcepc.h
View File

@ -63,6 +63,26 @@ private:
DECLARE_DEVICE_TYPE(SMBUS_LOGGER, smbus_logger_device)
// Simple smbus rom used as a placeholder for the serial presence detect chip in a ddr dimm
class smbus_rom_device : public device_t, public smbus_interface
{
public:
smbus_rom_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock, const uint8_t *data, int size);
smbus_rom_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
virtual int execute_command(int command, int rw, int data) override;
protected:
virtual void device_start() override;
virtual void device_reset() override;
private:
const uint8_t *buffer;
int buffer_size;
};
DECLARE_DEVICE_TYPE(SMBUS_ROM, smbus_rom_device)
// Asus AS99127F chip
// It answerst to three smbus addresses, by default 0x2d 0x48 0x49