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smbus: add a smbus_eeprom_init_one() routine 

This is an helper routine to add a single EEPROM on an I2C bus. It can
be directly used by smbus_eeprom_init() which adds a certain number of
EEPROMs on mips and x86 machines.

Signed-off-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-id: 20180530064049.27976-5-clg@kaod.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Cédric Le Goater 2018-06-08 13:15:32 +01:00 committed by Peter Maydell
parent 6c4567c730
commit e222421413
2 changed files with 12 additions and 5 deletions
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16
hw/i2c/smbus_eeprom.c
View File

@ -139,6 +139,16 @@ static void smbus_eeprom_register_types(void)
type_init(smbus_eeprom_register_types)
void smbus_eeprom_init_one(I2CBus *smbus, uint8_t address, uint8_t *eeprom_buf)
{
DeviceState *dev;
dev = qdev_create((BusState *) smbus, "smbus-eeprom");
qdev_prop_set_uint8(dev, "address", address);
qdev_prop_set_ptr(dev, "data", eeprom_buf);
qdev_init_nofail(dev);
}
void smbus_eeprom_init(I2CBus *smbus, int nb_eeprom,
const uint8_t *eeprom_spd, int eeprom_spd_size)
{
@ -149,10 +159,6 @@ void smbus_eeprom_init(I2CBus *smbus, int nb_eeprom,
}
for (i = 0; i < nb_eeprom; i++) {
DeviceState *eeprom;
eeprom = qdev_create((BusState *)smbus, "smbus-eeprom");
qdev_prop_set_uint8(eeprom, "address", 0x50 + i);
qdev_prop_set_ptr(eeprom, "data", eeprom_buf + (i * 256));
qdev_init_nofail(eeprom);
smbus_eeprom_init_one(smbus, 0x50 + i, eeprom_buf + (i * 256));
}
}

1
include/hw/i2c/smbus.h
View File

@ -76,6 +76,7 @@ int smbus_read_block(I2CBus *bus, uint8_t addr, uint8_t command, uint8_t *data);
int smbus_write_block(I2CBus *bus, uint8_t addr, uint8_t command, uint8_t *data,
int len);
void smbus_eeprom_init_one(I2CBus *smbus, uint8_t address, uint8_t *eeprom_buf);
void smbus_eeprom_init(I2CBus *smbus, int nb_eeprom,
const uint8_t *eeprom_spd, int size);