mirrors/qemu
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

arm/aspeed: rainier: Add i2c eeproms and muxes

Browse Source 
These are the devices documented by the Rainier device tree. With this
we can see the guest discovering the multiplexers and probing the eeprom
devices:

 i2c i2c-2: Added multiplexed i2c bus 16
 i2c i2c-2: Added multiplexed i2c bus 17
 i2c i2c-2: Added multiplexed i2c bus 18
 i2c i2c-2: Added multiplexed i2c bus 19
 i2c-mux-gpio i2cmux: 4 port mux on 1e78a180.i2c-bus adapter
 at24 20-0050: 8192 byte 24c64 EEPROM, writable, 1 bytes/write
 i2c i2c-4: Added multiplexed i2c bus 20
 at24 21-0051: 8192 byte 24c64 EEPROM, writable, 1 bytes/write
 i2c i2c-4: Added multiplexed i2c bus 21
 at24 22-0052: 8192 byte 24c64 EEPROM, writable, 1 bytes/write

Signed-off-by: Joel Stanley <joel@jms.id.au>
[ clg: Introduced aspeed_eeprom_init ]
Message-Id: <20210629142336.750058-2-clg@kaod.org>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
This commit is contained in:
Joel Stanley 2021-09-20 08:50:59 +02:00 committed by Cédric Le Goater
parent 0c33a48df4
commit fa6d98c060
1 changed files with 44 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

44
hw/arm/aspeed.c
View File

@ -674,9 +674,21 @@ static void g220a_bmc_i2c_init(AspeedMachineState *bmc)
eeprom_buf);
}
static void aspeed_eeprom_init(I2CBus *bus, uint8_t addr, uint32_t rsize)
{
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, bus, &error_abort);
}
static void rainier_bmc_i2c_init(AspeedMachineState *bmc)
{
AspeedSoCState *soc = &bmc->soc;
I2CSlave *i2c_mux;
aspeed_eeprom_init(aspeed_i2c_get_bus(&soc->i2c, 0), 0x51, 32 * KiB);
/* The rainier expects a TMP275 but a TMP105 is compatible */
i2c_slave_create_simple(aspeed_i2c_get_bus(&soc->i2c, 4), TYPE_TMP105,
@ -685,11 +697,20 @@ static void rainier_bmc_i2c_init(AspeedMachineState *bmc)
0x49);
i2c_slave_create_simple(aspeed_i2c_get_bus(&soc->i2c, 4), TYPE_TMP105,
0x4a);
i2c_mux = i2c_slave_create_simple(aspeed_i2c_get_bus(&soc->i2c, 4),
"pca9546", 0x70);
aspeed_eeprom_init(pca954x_i2c_get_bus(i2c_mux, 0), 0x50, 64 * KiB);
aspeed_eeprom_init(pca954x_i2c_get_bus(i2c_mux, 1), 0x51, 64 * KiB);
aspeed_eeprom_init(pca954x_i2c_get_bus(i2c_mux, 2), 0x52, 64 * KiB);
i2c_slave_create_simple(aspeed_i2c_get_bus(&soc->i2c, 5), TYPE_TMP105,
0x48);
i2c_slave_create_simple(aspeed_i2c_get_bus(&soc->i2c, 5), TYPE_TMP105,
0x49);
i2c_mux = i2c_slave_create_simple(aspeed_i2c_get_bus(&soc->i2c, 5),
"pca9546", 0x70);
aspeed_eeprom_init(pca954x_i2c_get_bus(i2c_mux, 0), 0x50, 64 * KiB);
aspeed_eeprom_init(pca954x_i2c_get_bus(i2c_mux, 1), 0x51, 64 * KiB);
i2c_slave_create_simple(aspeed_i2c_get_bus(&soc->i2c, 6), TYPE_TMP105,
0x48);
@ -697,6 +718,12 @@ static void rainier_bmc_i2c_init(AspeedMachineState *bmc)
0x4a);
i2c_slave_create_simple(aspeed_i2c_get_bus(&soc->i2c, 6), TYPE_TMP105,
0x4b);
i2c_mux = i2c_slave_create_simple(aspeed_i2c_get_bus(&soc->i2c, 6),
"pca9546", 0x70);
aspeed_eeprom_init(pca954x_i2c_get_bus(i2c_mux, 0), 0x50, 64 * KiB);
aspeed_eeprom_init(pca954x_i2c_get_bus(i2c_mux, 1), 0x51, 64 * KiB);
aspeed_eeprom_init(pca954x_i2c_get_bus(i2c_mux, 2), 0x50, 64 * KiB);
aspeed_eeprom_init(pca954x_i2c_get_bus(i2c_mux, 3), 0x51, 64 * KiB);
/* Bus 7: TODO dps310@76 */
/* Bus 7: TODO max31785@52 */
@ -704,11 +731,15 @@ static void rainier_bmc_i2c_init(AspeedMachineState *bmc)
/* Bus 7: TODO si7021-a20@20 */
i2c_slave_create_simple(aspeed_i2c_get_bus(&soc->i2c, 7), TYPE_TMP105,
0x48);
aspeed_eeprom_init(aspeed_i2c_get_bus(&soc->i2c, 7), 0x50, 64 * KiB);
aspeed_eeprom_init(aspeed_i2c_get_bus(&soc->i2c, 7), 0x51, 64 * KiB);
i2c_slave_create_simple(aspeed_i2c_get_bus(&soc->i2c, 8), TYPE_TMP105,
0x48);
i2c_slave_create_simple(aspeed_i2c_get_bus(&soc->i2c, 8), TYPE_TMP105,
0x4a);
aspeed_eeprom_init(aspeed_i2c_get_bus(&soc->i2c, 8), 0x50, 64 * KiB);
aspeed_eeprom_init(aspeed_i2c_get_bus(&soc->i2c, 8), 0x51, 64 * KiB);
i2c_slave_create_simple(aspeed_i2c_get_bus(&soc->i2c, 8), "pca9552", 0x61);
/* Bus 8: ucd90320@11 */
/* Bus 8: ucd90320@b */
@ -716,14 +747,27 @@ static void rainier_bmc_i2c_init(AspeedMachineState *bmc)
i2c_slave_create_simple(aspeed_i2c_get_bus(&soc->i2c, 9), "tmp423", 0x4c);
i2c_slave_create_simple(aspeed_i2c_get_bus(&soc->i2c, 9), "tmp423", 0x4d);
aspeed_eeprom_init(aspeed_i2c_get_bus(&soc->i2c, 9), 0x50, 128 * KiB);
i2c_slave_create_simple(aspeed_i2c_get_bus(&soc->i2c, 10), "tmp423", 0x4c);
i2c_slave_create_simple(aspeed_i2c_get_bus(&soc->i2c, 10), "tmp423", 0x4d);
aspeed_eeprom_init(aspeed_i2c_get_bus(&soc->i2c, 10), 0x50, 128 * KiB);
i2c_slave_create_simple(aspeed_i2c_get_bus(&soc->i2c, 11), TYPE_TMP105,
0x48);
i2c_slave_create_simple(aspeed_i2c_get_bus(&soc->i2c, 11), TYPE_TMP105,
0x49);
i2c_mux = i2c_slave_create_simple(aspeed_i2c_get_bus(&soc->i2c, 11),
"pca9546", 0x70);
aspeed_eeprom_init(pca954x_i2c_get_bus(i2c_mux, 0), 0x50, 64 * KiB);
aspeed_eeprom_init(pca954x_i2c_get_bus(i2c_mux, 1), 0x51, 64 * KiB);
aspeed_eeprom_init(aspeed_i2c_get_bus(&soc->i2c, 13), 0x50, 64 * KiB);
aspeed_eeprom_init(aspeed_i2c_get_bus(&soc->i2c, 14), 0x50, 64 * KiB);
aspeed_eeprom_init(aspeed_i2c_get_bus(&soc->i2c, 15), 0x50, 64 * KiB);
}
static bool aspeed_get_mmio_exec(Object *obj, Error **errp)