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hw/arm: Add I2C sensors and EEPROM for GSJ machine 

Add AT24 EEPROM and temperature sensors for GSJ machine.

Reviewed-by: Doug Evans<dje@google.com>
Reviewed-by: Tyrong Ting<kfting@nuvoton.com>
Signed-off-by: Hao Wu <wuhaotsh@google.com>
Message-id: 20210210220426.3577804-4-wuhaotsh@google.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Hao Wu 2021-02-10 14:04:24 -08:00 committed by Peter Maydell
parent 86248f533e
commit 2ef1e0d7dc
2 changed files with 28 additions and 0 deletions
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1
hw/arm/Kconfig
View File

@ -370,6 +370,7 @@ config NPCM7XX
bool
select A9MPCORE
select ARM_GIC
select AT24C # EEPROM
select PL310 # cache controller
select SERIAL
select SSI

27
hw/arm/npcm7xx_boards.c
View File

@ -19,6 +19,7 @@
#include "exec/address-spaces.h"
#include "hw/arm/npcm7xx.h"
#include "hw/core/cpu.h"
#include "hw/i2c/smbus_eeprom.h"
#include "hw/loader.h"
#include "hw/qdev-properties.h"
#include "qapi/error.h"
@ -104,6 +105,17 @@ static I2CBus *npcm7xx_i2c_get_bus(NPCM7xxState *soc, uint32_t num)
return I2C_BUS(qdev_get_child_bus(DEVICE(&soc->smbus[num]), "i2c-bus"));
}
static void at24c_eeprom_init(NPCM7xxState *soc, int bus, uint8_t addr,
uint32_t rsize)
{
I2CBus *i2c_bus = npcm7xx_i2c_get_bus(soc, bus);
I2CSlave *i2c_dev = i2c_slave_new("at24c-eeprom", addr);
DeviceState *dev = DEVICE(i2c_dev);
qdev_prop_set_uint32(dev, "rom-size", rsize);
i2c_slave_realize_and_unref(i2c_dev, i2c_bus, &error_abort);
}
static void npcm750_evb_i2c_init(NPCM7xxState *soc)
{
/* lm75 temperature sensor on SVB, tmp105 is compatible */
@ -116,6 +128,20 @@ static void npcm750_evb_i2c_init(NPCM7xxState *soc)
i2c_slave_create_simple(npcm7xx_i2c_get_bus(soc, 6), "tmp105", 0x48);
}
static void quanta_gsj_i2c_init(NPCM7xxState *soc)
{
/* GSJ machine have 4 max31725 temperature sensors, tmp105 is compatible. */
i2c_slave_create_simple(npcm7xx_i2c_get_bus(soc, 1), "tmp105", 0x5c);
i2c_slave_create_simple(npcm7xx_i2c_get_bus(soc, 2), "tmp105", 0x5c);
i2c_slave_create_simple(npcm7xx_i2c_get_bus(soc, 3), "tmp105", 0x5c);
i2c_slave_create_simple(npcm7xx_i2c_get_bus(soc, 4), "tmp105", 0x5c);
at24c_eeprom_init(soc, 9, 0x55, 8192);
at24c_eeprom_init(soc, 10, 0x55, 8192);
/* TODO: Add additional i2c devices. */
}
static void npcm750_evb_init(MachineState *machine)
{
NPCM7xxState *soc;
@ -141,6 +167,7 @@ static void quanta_gsj_init(MachineState *machine)
npcm7xx_load_bootrom(machine, soc);
npcm7xx_connect_flash(&soc->fiu[0], 0, "mx25l25635e",
drive_get(IF_MTD, 0, 0));
quanta_gsj_i2c_init(soc);
npcm7xx_load_kernel(machine, soc);
}