[PATCH v3 21/30] hw/arm/aspeed: Split QCOM Firework machine into a separate source file for maintainability

[Jamin Lin via <qemu-devel@nongnu.org>]

This commit moves the QCOM Firework BMC machine implementation out of
aspeed.c into a new standalone file aspeed_ast2600_qcom-firework.c.

This refactor continues the modularization effort for Aspeed platform support,
placing each board’s logic in its own dedicated source file. It improves
maintainability, readability, and simplifies future development for new
platforms without cluttering aspeed.c.

Key updates include:
- Removed qcom_dc_scm_firework_i2c_init() and its Firework-specific devices
  from aspeed.c.
- Removed aspeed_machine_qcom_firework_class_init() and its type registration
  ("qcom-firework-bmc") from aspeed_machine_types[].
- Added new source file aspeed_ast2600_qcom-firework.c containing the
  Firework-specific initialization and machine class definition.
- Updated hw/arm/meson.build to include aspeed_ast2600_qcom-firework.c.
- Cleaned up all Firework-specific code from aspeed.c.
- Renamed `QCOM_DC_SCM_V1_BMC_HW_STRAP1` to
  `QCOM_DC_SCM_FIREWORK_BMC_HW_STRAP1` to avoid dependency conflicts with
  other QCOM DC-SCM machines.

No functional changes.

Signed-off-by: Jamin Lin <jamin_lin@aspeedtech.com>
---
 hw/arm/aspeed.c                       | 57 -----------------
 hw/arm/aspeed_ast2600_qcom-firework.c | 92 +++++++++++++++++++++++++++
 hw/arm/meson.build                    |  1 +
 3 files changed, 93 insertions(+), 57 deletions(-)
 create mode 100644 hw/arm/aspeed_ast2600_qcom-firework.c

diff --git a/hw/arm/aspeed.c b/hw/arm/aspeed.c
index 29a036b675..f72b1e2eea 100644
--- a/hw/arm/aspeed.c
+++ b/hw/arm/aspeed.c
@@ -635,38 +635,6 @@ static void qcom_dc_scm_bmc_i2c_init(AspeedMachineState *bmc)
     i2c_slave_create_simple(aspeed_i2c_get_bus(&soc->i2c, 15), "tmp105", 0x4d);
 }
 
-static void qcom_dc_scm_firework_i2c_init(AspeedMachineState *bmc)
-{
-    AspeedSoCState *soc = bmc->soc;
-    I2CSlave *therm_mux, *cpuvr_mux;
-
-    /* Create the generic DC-SCM hardware */
-    qcom_dc_scm_bmc_i2c_init(bmc);
-
-    /* Now create the Firework specific hardware */
-
-    /* I2C7 CPUVR MUX */
-    cpuvr_mux = i2c_slave_create_simple(aspeed_i2c_get_bus(&soc->i2c, 7),
-                                        "pca9546", 0x70);
-    i2c_slave_create_simple(pca954x_i2c_get_bus(cpuvr_mux, 0), "pca9548", 0x72);
-    i2c_slave_create_simple(pca954x_i2c_get_bus(cpuvr_mux, 1), "pca9548", 0x72);
-    i2c_slave_create_simple(pca954x_i2c_get_bus(cpuvr_mux, 2), "pca9548", 0x72);
-    i2c_slave_create_simple(pca954x_i2c_get_bus(cpuvr_mux, 3), "pca9548", 0x72);
-
-    /* I2C8 Thermal Diodes*/
-    therm_mux = i2c_slave_create_simple(aspeed_i2c_get_bus(&soc->i2c, 8),
-                                        "pca9548", 0x70);
-    i2c_slave_create_simple(pca954x_i2c_get_bus(therm_mux, 0), TYPE_LM75, 0x4C);
-    i2c_slave_create_simple(pca954x_i2c_get_bus(therm_mux, 1), TYPE_LM75, 0x4C);
-    i2c_slave_create_simple(pca954x_i2c_get_bus(therm_mux, 2), TYPE_LM75, 0x48);
-    i2c_slave_create_simple(pca954x_i2c_get_bus(therm_mux, 3), TYPE_LM75, 0x48);
-    i2c_slave_create_simple(pca954x_i2c_get_bus(therm_mux, 4), TYPE_LM75, 0x48);
-
-    /* I2C9 Fan Controller (MAX31785) */
-    i2c_slave_create_simple(aspeed_i2c_get_bus(&soc->i2c, 9), "max31785", 0x52);
-    i2c_slave_create_simple(aspeed_i2c_get_bus(&soc->i2c, 9), "max31785", 0x54);
-}
-
 static bool aspeed_get_mmio_exec(Object *obj, Error **errp)
 {
     return ASPEED_MACHINE(obj)->mmio_exec;
@@ -1063,26 +1031,6 @@ static void aspeed_machine_qcom_dc_scm_v1_class_init(ObjectClass *oc,
     aspeed_machine_class_init_cpus_defaults(mc);
 };
 
-static void aspeed_machine_qcom_firework_class_init(ObjectClass *oc,
-                                                    const void *data)
-{
-    MachineClass *mc = MACHINE_CLASS(oc);
-    AspeedMachineClass *amc = ASPEED_MACHINE_CLASS(oc);
-
-    mc->desc       = "Qualcomm DC-SCM V1/Firework BMC (Cortex A7)";
-    mc->deprecation_reason = "use 'ast2600-evb' instead";
-    amc->soc_name  = "ast2600-a3";
-    amc->hw_strap1 = QCOM_DC_SCM_V1_BMC_HW_STRAP1;
-    amc->hw_strap2 = QCOM_DC_SCM_V1_BMC_HW_STRAP2;
-    amc->fmc_model = "n25q512a";
-    amc->spi_model = "n25q512a";
-    amc->num_cs    = 2;
-    amc->macs_mask = ASPEED_MAC2_ON | ASPEED_MAC3_ON;
-    amc->i2c_init  = qcom_dc_scm_firework_i2c_init;
-    mc->default_ram_size = 1 * GiB;
-    aspeed_machine_class_init_cpus_defaults(mc);
-};
-
 static const TypeInfo aspeed_machine_types[] = {
     {
         .name          = MACHINE_TYPE_NAME("ast2600-evb"),
@@ -1094,11 +1042,6 @@ static const TypeInfo aspeed_machine_types[] = {
         .parent        = TYPE_ASPEED_MACHINE,
         .class_init    = aspeed_machine_qcom_dc_scm_v1_class_init,
         .interfaces    = arm_machine_interfaces,
-    }, {
-        .name          = MACHINE_TYPE_NAME("qcom-firework-bmc"),
-        .parent        = TYPE_ASPEED_MACHINE,
-        .class_init    = aspeed_machine_qcom_firework_class_init,
-        .interfaces    = arm_machine_interfaces,
     }, {
         .name          = MACHINE_TYPE_NAME("rainier-bmc"),
         .parent        = TYPE_ASPEED_MACHINE,
diff --git a/hw/arm/aspeed_ast2600_qcom-firework.c b/hw/arm/aspeed_ast2600_qcom-firework.c
new file mode 100644
index 0000000000..d040b9c63b
--- /dev/null
+++ b/hw/arm/aspeed_ast2600_qcom-firework.c
@@ -0,0 +1,92 @@
+/*
+ * Qualcomm DC-SCM V1/Firework
+ *
+ * Copyright (C) 2025 ASPEED Technology Inc.
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
+
+#include "qemu/osdep.h"
+#include "qapi/error.h"
+#include "hw/arm/machines-qom.h"
+#include "hw/arm/aspeed.h"
+#include "hw/arm/aspeed_soc.h"
+#include "hw/i2c/i2c_mux_pca954x.h"
+#include "hw/sensor/tmp105.h"
+
+/* Qualcomm DC-SCM Firework hardware value */
+#define QCOM_DC_SCM_FIREWORK_BMC_HW_STRAP1  0x00000000
+#define QCOM_DC_SCM_FIREWORK_BMC_HW_STRAP2  0x00000041
+
+#define TYPE_LM75 TYPE_TMP105
+
+static void qcom_dc_scm_bmc_i2c_init(AspeedMachineState *bmc)
+{
+    AspeedSoCState *soc = bmc->soc;
+
+    i2c_slave_create_simple(aspeed_i2c_get_bus(&soc->i2c, 15), "tmp105", 0x4d);
+}
+
+static void qcom_dc_scm_firework_i2c_init(AspeedMachineState *bmc)
+{
+    AspeedSoCState *soc = bmc->soc;
+    I2CSlave *therm_mux, *cpuvr_mux;
+
+    /* Create the generic DC-SCM hardware */
+    qcom_dc_scm_bmc_i2c_init(bmc);
+
+    /* Now create the Firework specific hardware */
+
+    /* I2C7 CPUVR MUX */
+    cpuvr_mux = i2c_slave_create_simple(aspeed_i2c_get_bus(&soc->i2c, 7),
+                                        "pca9546", 0x70);
+    i2c_slave_create_simple(pca954x_i2c_get_bus(cpuvr_mux, 0), "pca9548", 0x72);
+    i2c_slave_create_simple(pca954x_i2c_get_bus(cpuvr_mux, 1), "pca9548", 0x72);
+    i2c_slave_create_simple(pca954x_i2c_get_bus(cpuvr_mux, 2), "pca9548", 0x72);
+    i2c_slave_create_simple(pca954x_i2c_get_bus(cpuvr_mux, 3), "pca9548", 0x72);
+
+    /* I2C8 Thermal Diodes*/
+    therm_mux = i2c_slave_create_simple(aspeed_i2c_get_bus(&soc->i2c, 8),
+                                        "pca9548", 0x70);
+    i2c_slave_create_simple(pca954x_i2c_get_bus(therm_mux, 0), TYPE_LM75, 0x4C);
+    i2c_slave_create_simple(pca954x_i2c_get_bus(therm_mux, 1), TYPE_LM75, 0x4C);
+    i2c_slave_create_simple(pca954x_i2c_get_bus(therm_mux, 2), TYPE_LM75, 0x48);
+    i2c_slave_create_simple(pca954x_i2c_get_bus(therm_mux, 3), TYPE_LM75, 0x48);
+    i2c_slave_create_simple(pca954x_i2c_get_bus(therm_mux, 4), TYPE_LM75, 0x48);
+
+    /* I2C9 Fan Controller (MAX31785) */
+    i2c_slave_create_simple(aspeed_i2c_get_bus(&soc->i2c, 9), "max31785", 0x52);
+    i2c_slave_create_simple(aspeed_i2c_get_bus(&soc->i2c, 9), "max31785", 0x54);
+}
+
+static void aspeed_machine_qcom_firework_class_init(ObjectClass *oc,
+                                                    const void *data)
+{
+    MachineClass *mc = MACHINE_CLASS(oc);
+    AspeedMachineClass *amc = ASPEED_MACHINE_CLASS(oc);
+
+    mc->desc       = "Qualcomm DC-SCM V1/Firework BMC (Cortex A7)";
+    mc->deprecation_reason = "use 'ast2600-evb' instead";
+    amc->soc_name  = "ast2600-a3";
+    amc->hw_strap1 = QCOM_DC_SCM_FIREWORK_BMC_HW_STRAP1;
+    amc->hw_strap2 = QCOM_DC_SCM_FIREWORK_BMC_HW_STRAP2;
+    amc->fmc_model = "n25q512a";
+    amc->spi_model = "n25q512a";
+    amc->num_cs    = 2;
+    amc->macs_mask = ASPEED_MAC2_ON | ASPEED_MAC3_ON;
+    amc->i2c_init  = qcom_dc_scm_firework_i2c_init;
+    mc->default_ram_size = 1 * GiB;
+    aspeed_machine_class_init_cpus_defaults(mc);
+};
+
+static const TypeInfo aspeed_ast2600_qcom_firework_types[] = {
+    {
+        .name          = MACHINE_TYPE_NAME("qcom-firework-bmc"),
+        .parent        = TYPE_ASPEED_MACHINE,
+        .class_init    = aspeed_machine_qcom_firework_class_init,
+        .interfaces    = arm_machine_interfaces,
+    }
+};
+
+DEFINE_TYPES(aspeed_ast2600_qcom_firework_types)
+
diff --git a/hw/arm/meson.build b/hw/arm/meson.build
index e6f6ab4245..fbe063cf0b 100644
--- a/hw/arm/meson.build
+++ b/hw/arm/meson.build
@@ -60,6 +60,7 @@ arm_ss.add(when: 'CONFIG_ASPEED_SOC', if_true: files(
   'aspeed_ast2600_bletchley.c',
   'aspeed_ast2600_fby35.c',
   'aspeed_ast2600_fuji.c',
+  'aspeed_ast2600_qcom-firework.c',
   'aspeed_ast10x0.c',
   'aspeed_eeprom.c',
   'fby35.c'))
-- 
2.43.0