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hw/arm: sanmiguel: add Facebook SanMiguel BMC machine
Add an AST2600-based machine for the Facebook SanMiguel BMC, derived from the aspeed-bmc-facebook-sanmiguel.dts device tree. The board wires up three TMP75 temperature sensors across its I2C buses, alongside IO expanders, FRU EEPROMs, an I2C mux and an RTC, with 2 GiB RAM, dual FMC flash and RGMII networking. Signed-off-by: Emmanuel Blot <emmanuel.blot@free.fr> Link: https://lore.kernel.org/qemu-devel/20260731-sanmiguel-bmc-locator-v2-12-1266926ba769@free.fr [ clg: - adjusted on upstream ] Signed-off-by: Cédric Le Goater <clg@redhat.com>
This commit is contained in:
Emmanuel Blot
committed by
Cédric Le Goater
Cédric Le Goater
parent
22b0f013d7
commit
b6bcec6c28
140
hw/arm/aspeed_ast2600_sanmiguel.c
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140
hw/arm/aspeed_ast2600_sanmiguel.c
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/*
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* Facebook SanMiguel BMC
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*
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* Copyright (c) Meta Platforms, Inc. and affiliates.
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*
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* SPDX-License-Identifier: GPL-2.0-or-later
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*/
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#include "qemu/osdep.h"
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#include "hw/arm/aspeed.h"
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#include "hw/arm/aspeed_soc.h"
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#include "hw/i2c/i2c_mux_pca954x.h"
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#include "hw/gpio/pca9552.h"
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#include "hw/gpio/pca9554.h"
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#include "hw/nvram/eeprom_at24c.h"
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#include "hw/sensor/tmp105.h"
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/* SanMiguel hardware values */
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#define SANMIGUEL_BMC_HW_STRAP1 0x00002002
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#define SANMIGUEL_BMC_HW_STRAP2 0x00000000
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#define SANMIGUEL_BMC_RAM_SIZE ASPEED_RAM_SIZE(2 * GiB)
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#define TYPE_DS1338 "ds1338"
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static void sanmiguel_bmc_i2c_init(AspeedMachineState *bmc)
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{
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/* Reference: aspeed-bmc-facebook-sanmiguel.dts */
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AspeedSoCState *soc = bmc->soc;
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I2CBus *i2c[16] = {};
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for (unsigned idx = 0; idx < ARRAY_SIZE(i2c); idx++) {
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i2c[idx] = aspeed_i2c_get_bus(&soc->i2c, idx);
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}
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/* &i2c0 */
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/* ssif-bmc@10 — no QEMU model */
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/* &i2c1 — empty */
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/* &i2c2 — HPM0 */
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/* hpm0_ioexp_20: pca9555@20 */
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i2c_slave_create_simple(i2c[2], TYPE_PCA9555, 0x20);
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/* hpm0_ioexp_21: pca9555@21 */
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i2c_slave_create_simple(i2c[2], TYPE_PCA9555, 0x21);
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/* &i2c3 — empty */
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/* &i2c4 — empty */
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/* &i2c5 — SMM */
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/* smm_ioexp_20: pca9555@20 */
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i2c_slave_create_simple(i2c[5], TYPE_PCA9555, 0x20);
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/* smm_ioexp_21: pca9555@21 */
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i2c_slave_create_simple(i2c[5], TYPE_PCA9555, 0x21);
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/* smm_temp: lm75@48 */
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i2c_slave_create_simple(i2c[5], TYPE_TMP75, 0x48);
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/* smm_fru: eeprom@50 (24c128 = 16 KiB) */
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at24c_eeprom_init(i2c[5], 0x50, 16 * KiB);
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/* rtc@6f — nct3018y (ds1338 stand-in) */
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i2c_slave_create_simple(i2c[5], TYPE_DS1338, 0x6f);
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/* &i2c6 — HMC */
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/* hmc_ioexp: tca6408@20 (pca9554 stand-in) */
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i2c_slave_create_simple(i2c[6], TYPE_PCA9554, 0x20);
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/* i2c-mux@70 (PCA9546) — 4 channels (imux16-19), all empty */
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i2c_slave_create_simple(i2c[6], TYPE_PCA9546, 0x70);
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/* &i2c7 — HPM1 */
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/* hpm1_ioexp_20: pca9555@20 */
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i2c_slave_create_simple(i2c[7], TYPE_PCA9555, 0x20);
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/* hpm1_ioexp_21: pca9555@21 */
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i2c_slave_create_simple(i2c[7], TYPE_PCA9555, 0x21);
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/* &i2c8 — empty */
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/* &i2c9 — PDB */
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/* mp5926@10-16, lm5066i@11-17 — no QEMU model (power monitors) */
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/* pdb_ioexp_20: pca9555@20 */
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i2c_slave_create_simple(i2c[9], TYPE_PCA9555, 0x20);
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/* pdb_temp: lm75@4e */
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i2c_slave_create_simple(i2c[9], TYPE_TMP75, 0x4e);
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/* pdb_fru: eeprom@50 (24c128 = 16 KiB) */
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at24c_eeprom_init(i2c[9], 0x50, 16 * KiB);
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/* &i2c10 — SCM */
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/* scm_temp: lm75@48 */
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i2c_slave_create_simple(i2c[10], TYPE_TMP75, 0x48);
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/* scm_fru: eeprom@50 (24c128 = 16 KiB) */
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at24c_eeprom_init(i2c[10], 0x50, 16 * KiB);
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/* &i2c11 — Switch Config */
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/* sw_config: eeprom@50 (24c64 = 8 KiB) */
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at24c_eeprom_init(i2c[11], 0x50, 8 * KiB);
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/* &i2c12 — empty */
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/* &i2c13 — SMM extension */
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/* mctp@10 — no QEMU model */
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/* smm_ext_ioexp: pca9554@38 */
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i2c_slave_create_simple(i2c[13], TYPE_PCA9554, 0x38);
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/* smm_ext_fru: eeprom@55 (24c128 = 16 KiB) */
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at24c_eeprom_init(i2c[13], 0x55, 16 * KiB);
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/* &i2c14 — FIO */
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/* fio_ioexp: pca9555@20 */
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i2c_slave_create_simple(i2c[14], TYPE_PCA9555, 0x20);
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/* fio_fru: eeprom@50 (24c64 = 8 KiB) */
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at24c_eeprom_init(i2c[14], 0x50, 8 * KiB);
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/* &i2c15 — empty */
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}
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static void aspeed_machine_sanmiguel_class_init(ObjectClass *oc,
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const void *data)
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{
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MachineClass *mc = MACHINE_CLASS(oc);
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AspeedMachineClass *amc = ASPEED_MACHINE_CLASS(oc);
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mc->desc = "Facebook SanMiguel BMC (Cortex-A7)";
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amc->soc_name = "ast2600-a3";
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amc->hw_strap1 = SANMIGUEL_BMC_HW_STRAP1;
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amc->hw_strap2 = SANMIGUEL_BMC_HW_STRAP2;
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amc->fmc_model = "mx66l1g45g";
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amc->spi_model = "mx66l1g45g";
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amc->num_cs = 2;
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amc->macs_mask = ASPEED_MAC0_ON;
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amc->i2c_init = sanmiguel_bmc_i2c_init;
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mc->default_ram_size = SANMIGUEL_BMC_RAM_SIZE;
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aspeed_machine_class_init_cpus_defaults(mc);
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}
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static const TypeInfo aspeed_ast2600_sanmiguel_types[] = {
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{
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.name = MACHINE_TYPE_NAME("sanmiguel-bmc"),
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.parent = TYPE_ASPEED_MACHINE,
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.class_init = aspeed_machine_sanmiguel_class_init,
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}
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};
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DEFINE_TYPES(aspeed_ast2600_sanmiguel_types)
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@@ -64,6 +64,7 @@ arm_common_ss.add(when: 'CONFIG_ASPEED_SOC', if_true: files(
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'aspeed_ast2600_fuji.c',
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'aspeed_ast2600_gb200nvl.c',
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'aspeed_ast2600_rainier.c',
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'aspeed_ast2600_sanmiguel.c',
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'aspeed_ast10x0.c',
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'aspeed_ast10x0_evb.c',
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'aspeed_ast1040.c',
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