hw/arm/aspeed: add Catalina machine type

Add the 'catalina-bmc' machine type based on the kernel DTS[1] as of
6.16-rc2.  The i2c model is as complete as the current QEMU models
support, but in some cases I substituted devices that are close enough
for present functionality.  Strap registers are were verified with
hardware.

This has been tested with an openbmc image built from [2].

Add a functional test in line with Bletchley, pointing at an image
obtained from the OpenBMC Jenkins server.

[1]: https://github.com/torvalds/linux/blob/v6.16-rc2/arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-catalina.dts
[2]: https://github.com/openbmc/openbmc/commit/5bc73ec261f981d5e586bda5ac78eb0cbd5f92b0

Signed-off-by: Patrick Williams <patrick@stwcx.xyz>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Link: https://lore.kernel.org/qemu-devel/20250619151458.2831859-1-patrick@stwcx.xyz
Signed-off-by: Cédric Le Goater <clg@redhat.com>

2 files changed, 201 insertions, 0 deletions

diff --git a/hw/arm/Kconfig b/hw/arm/Kconfig
index f543d944c3..6ea86534d5 100644
--- a/hw/arm/Kconfig
+++ b/hw/arm/Kconfig
@@ -532,6 +532,7 @@ config ASPEED_SOC
     select I2C
     select DPS310
     select PCA9552
+    select PCA9554
     select SERIAL_MM
     select SMBUS_EEPROM
     select PCA954X
diff --git a/hw/arm/aspeed.c b/hw/arm/aspeed.c
index 5662cb2c4a..94897505f8 100644
--- a/hw/arm/aspeed.c
+++ b/hw/arm/aspeed.c
@@ -19,6 +19,7 @@
 #include "hw/i2c/i2c_mux_pca954x.h"
 #include "hw/i2c/smbus_eeprom.h"
 #include "hw/gpio/pca9552.h"
+#include "hw/gpio/pca9554.h"
 #include "hw/nvram/eeprom_at24c.h"
 #include "hw/sensor/tmp105.h"
 #include "hw/misc/led.h"
@@ -1002,6 +1003,180 @@ static void fuji_bmc_i2c_init(AspeedMachineState *bmc)
 }
 
 #define TYPE_TMP421 "tmp421"
+#define TYPE_DS1338 "ds1338"
+
+/* Catalina hardware value */
+#define CATALINA_BMC_HW_STRAP1 0x00002002
+#define CATALINA_BMC_HW_STRAP2 0x00000800
+
+#define CATALINA_BMC_RAM_SIZE ASPEED_RAM_SIZE(2 * GiB)
+
+static void catalina_bmc_i2c_init(AspeedMachineState *bmc)
+{
+    /* Reference from v6.16-rc2 aspeed-bmc-facebook-catalina.dts */
+
+    AspeedSoCState *soc = bmc->soc;
+    I2CBus *i2c[16] = {};
+    I2CSlave *i2c_mux;
+
+    /* busses 0-15 are all used. */
+    for (int i = 0; i < ARRAY_SIZE(i2c); i++) {
+        i2c[i] = aspeed_i2c_get_bus(&soc->i2c, i);
+    }
+
+    /* &i2c0 */
+    /* i2c-mux@71 (PCA9546) on i2c0 */
+    i2c_slave_create_simple(i2c[0], TYPE_PCA9546, 0x71);
+
+    /* i2c-mux@72 (PCA9546) on i2c0 */
+    i2c_mux = i2c_slave_create_simple(i2c[0], TYPE_PCA9546, 0x72);
+
+    /* i2c0mux1ch1 */
+    /* io_expander7 - pca9535@20 */
+    i2c_slave_create_simple(pca954x_i2c_get_bus(i2c_mux, 1),
+                            TYPE_PCA9552, 0x20);
+    /* eeprom@50 */
+    at24c_eeprom_init(pca954x_i2c_get_bus(i2c_mux, 1), 0x50, 8 * KiB);
+
+    /* i2c-mux@73 (PCA9546) on i2c0 */
+    i2c_slave_create_simple(i2c[0], TYPE_PCA9546, 0x73);
+
+    /* i2c-mux@75 (PCA9546) on i2c0 */
+    i2c_slave_create_simple(i2c[0], TYPE_PCA9546, 0x75);
+
+    /* i2c-mux@76 (PCA9546) on i2c0 */
+    i2c_mux = i2c_slave_create_simple(i2c[0], TYPE_PCA9546, 0x76);
+
+    /* i2c0mux4ch1 */
+    /* io_expander8 - pca9535@21 */
+    i2c_slave_create_simple(pca954x_i2c_get_bus(i2c_mux, 1),
+                            TYPE_PCA9552, 0x21);
+    /* eeprom@50 */
+    at24c_eeprom_init(pca954x_i2c_get_bus(i2c_mux, 1), 0x50, 8 * KiB);
+
+    /* i2c-mux@77 (PCA9546) on i2c0 */
+    i2c_slave_create_simple(i2c[0], TYPE_PCA9546, 0x77);
+
+
+    /* &i2c1 */
+    /* i2c-mux@70 (PCA9548) on i2c1 */
+    i2c_mux = i2c_slave_create_simple(i2c[1], TYPE_PCA9548, 0x70);
+    /* i2c1mux0ch0 */
+    /* ina238@41 - no model */
+    /* ina238@42 - no model */
+    /* ina238@44 - no model */
+    /* i2c1mux0ch1 */
+    /* ina238@41 - no model */
+    /* ina238@43 - no model */
+    /* i2c1mux0ch4 */
+    /* ltc4287@42 - no model */
+    /* ltc4287@43 - no model */
+
+    /* i2c1mux0ch5 */
+    /* eeprom@54 */
+    at24c_eeprom_init(pca954x_i2c_get_bus(i2c_mux, 5), 0x54, 8 * KiB);
+    /* tpm75@4f */
+    i2c_slave_create_simple(pca954x_i2c_get_bus(i2c_mux, 5), TYPE_TMP75, 0x4f);
+
+    /* i2c1mux0ch6 */
+    /* io_expander5 - pca9554@27 */
+    i2c_slave_create_simple(pca954x_i2c_get_bus(i2c_mux, 6),
+                            TYPE_PCA9554, 0x27);
+    /* io_expander6 - pca9555@25 */
+    i2c_slave_create_simple(pca954x_i2c_get_bus(i2c_mux, 6),
+                            TYPE_PCA9552, 0x25);
+    /* eeprom@51 */
+    at24c_eeprom_init(pca954x_i2c_get_bus(i2c_mux, 6), 0x51, 8 * KiB);
+
+    /* i2c1mux0ch7 */
+    /* eeprom@53 */
+    at24c_eeprom_init(pca954x_i2c_get_bus(i2c_mux, 7), 0x53, 8 * KiB);
+    /* temperature-sensor@4b - tmp75 */
+    i2c_slave_create_simple(pca954x_i2c_get_bus(i2c_mux, 7), TYPE_TMP75, 0x4b);
+
+    /* &i2c2 */
+    /* io_expander0 - pca9555@20 */
+    i2c_slave_create_simple(i2c[2], TYPE_PCA9552, 0x20);
+    /* io_expander0 - pca9555@21 */
+    i2c_slave_create_simple(i2c[2], TYPE_PCA9552, 0x21);
+    /* io_expander0 - pca9555@27 */
+    i2c_slave_create_simple(i2c[2], TYPE_PCA9552, 0x27);
+    /* eeprom@50 */
+    at24c_eeprom_init(i2c[2], 0x50, 8 * KiB);
+    /* eeprom@51 */
+    at24c_eeprom_init(i2c[2], 0x51, 8 * KiB);
+
+    /* &i2c5 */
+    /* i2c-mux@70 (PCA9548) on i2c5 */
+    i2c_mux = i2c_slave_create_simple(i2c[5], TYPE_PCA9548, 0x70);
+    /* i2c5mux0ch6 */
+    /* eeprom@52 */
+    at24c_eeprom_init(pca954x_i2c_get_bus(i2c_mux, 6), 0x52, 8 * KiB);
+    /* i2c5mux0ch7 */
+    /* ina230@40 - no model */
+    /* ina230@41 - no model */
+    /* ina230@44 - no model */
+    /* ina230@45 - no model */
+
+    /* &i2c6 */
+    /* io_expander3 - pca9555@21 */
+    i2c_slave_create_simple(i2c[6], TYPE_PCA9552, 0x21);
+    /* rtc@6f - nct3018y */
+    i2c_slave_create_simple(i2c[6], TYPE_DS1338, 0x6f);
+
+    /* &i2c9 */
+    /* io_expander4 - pca9555@4f */
+    i2c_slave_create_simple(i2c[9], TYPE_PCA9552, 0x4f);
+    /* temperature-sensor@4b - tpm75 */
+    i2c_slave_create_simple(i2c[9], TYPE_TMP75, 0x4b);
+    /* eeprom@50 */
+    at24c_eeprom_init(i2c[9], 0x50, 8 * KiB);
+    /* eeprom@56 */
+    at24c_eeprom_init(i2c[9], 0x56, 8 * KiB);
+
+    /* &i2c10 */
+    /* temperature-sensor@1f - tpm421 */
+    i2c_slave_create_simple(i2c[10], TYPE_TMP421, 0x1f);
+    /* eeprom@50 */
+    at24c_eeprom_init(i2c[10], 0x50, 8 * KiB);
+
+    /* &i2c11 */
+    /* ssif-bmc@10 - no model */
+
+    /* &i2c12 */
+    /* eeprom@50 */
+    at24c_eeprom_init(i2c[12], 0x50, 8 * KiB);
+
+    /* &i2c13 */
+    /* eeprom@50 */
+    at24c_eeprom_init(i2c[13], 0x50, 8 * KiB);
+    /* eeprom@54 */
+    at24c_eeprom_init(i2c[13], 0x54, 256);
+    /* eeprom@55 */
+    at24c_eeprom_init(i2c[13], 0x55, 256);
+    /* eeprom@57 */
+    at24c_eeprom_init(i2c[13], 0x57, 256);
+
+    /* &i2c14 */
+    /* io_expander9 - pca9555@10 */
+    i2c_slave_create_simple(i2c[14], TYPE_PCA9552, 0x10);
+    /* io_expander10 - pca9555@11 */
+    i2c_slave_create_simple(i2c[14], TYPE_PCA9552, 0x11);
+    /* io_expander11 - pca9555@12 */
+    i2c_slave_create_simple(i2c[14], TYPE_PCA9552, 0x12);
+    /* io_expander12 - pca9555@13 */
+    i2c_slave_create_simple(i2c[14], TYPE_PCA9552, 0x13);
+    /* io_expander13 - pca9555@14 */
+    i2c_slave_create_simple(i2c[14], TYPE_PCA9552, 0x14);
+    /* io_expander14 - pca9555@15 */
+    i2c_slave_create_simple(i2c[14], TYPE_PCA9552, 0x15);
+
+    /* &i2c15 */
+    /* temperature-sensor@1f - tmp421 */
+    i2c_slave_create_simple(i2c[15], TYPE_TMP421, 0x1f);
+    /* eeprom@52 */
+    at24c_eeprom_init(i2c[15], 0x52, 8 * KiB);
+}
 
 static void bletchley_bmc_i2c_init(AspeedMachineState *bmc)
 {
@@ -1584,6 +1759,27 @@ static void aspeed_machine_bletchley_class_init(ObjectClass *oc,
     aspeed_machine_class_init_cpus_defaults(mc);
 }
 
+static void aspeed_machine_catalina_class_init(ObjectClass *oc,
+                                               const void *data)
+{
+    MachineClass *mc = MACHINE_CLASS(oc);
+    AspeedMachineClass *amc = ASPEED_MACHINE_CLASS(oc);
+
+    mc->desc       = "Facebook Catalina BMC (Cortex-A7)";
+    amc->soc_name  = "ast2600-a3";
+    amc->hw_strap1 = CATALINA_BMC_HW_STRAP1;
+    amc->hw_strap2 = CATALINA_BMC_HW_STRAP2;
+    amc->fmc_model = "w25q01jvq";
+    amc->spi_model = NULL;
+    amc->num_cs    = 2;
+    amc->macs_mask = ASPEED_MAC2_ON;
+    amc->i2c_init  = catalina_bmc_i2c_init;
+    mc->auto_create_sdcard = true;
+    mc->default_ram_size = CATALINA_BMC_RAM_SIZE;
+    aspeed_machine_class_init_cpus_defaults(mc);
+    aspeed_machine_ast2600_class_emmc_init(oc);
+}
+
 static void fby35_reset(MachineState *state, ResetType type)
 {
     AspeedMachineState *bmc = ASPEED_MACHINE(state);
@@ -1877,6 +2073,10 @@ static const TypeInfo aspeed_machine_types[] = {
         .parent        = TYPE_ASPEED_MACHINE,
         .class_init    = aspeed_machine_bletchley_class_init,
     }, {
+        .name          = MACHINE_TYPE_NAME("catalina-bmc"),
+        .parent        = TYPE_ASPEED_MACHINE,
+        .class_init    = aspeed_machine_catalina_class_init,
+    }, {
         .name          = MACHINE_TYPE_NAME("fby35-bmc"),
         .parent        = MACHINE_TYPE_NAME("ast2600-evb"),
         .class_init    = aspeed_machine_fby35_class_init,