hw/arm: Add support for kudo-bmc board.

kudo-bmc is a board supported by OpenBMC.
https://github.com/openbmc/openbmc/tree/master/meta-fii/meta-kudo

Since v1:
- hyphenated Cortex-A9

Tested: Booted kudo firmware.
Signed-off-by: Chris Rauer <crauer@google.com>
Reviewed-by: Patrick Venture <venture@google.com>
Message-id: 20210907223234.1165705-1-crauer@google.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

docs/system/arm/nuvoton.rst

@@ -20,6 +20,7 @@ Hyperscale applications. The following machines are based on this chip :
 
 - ``quanta-gbs-bmc``    Quanta GBS server BMC
 - ``quanta-gsj``        Quanta GSJ server BMC
+- ``kudo-bmc``          Fii USA Kudo server BMC
 
 There are also two more SoCs, NPCM710 and NPCM705, which are single-core
 variants of NPCM750 and NPCM730, respectively. These are currently not

hw/arm/npcm7xx_boards.c

@@ -31,6 +31,7 @@
 #define NPCM750_EVB_POWER_ON_STRAPS 0x00001ff7
 #define QUANTA_GSJ_POWER_ON_STRAPS 0x00001fff
 #define QUANTA_GBS_POWER_ON_STRAPS 0x000017ff
+#define KUDO_BMC_POWER_ON_STRAPS 0x00001fff
 
 static const char npcm7xx_default_bootrom[] = "npcm7xx_bootrom.bin";
 
@@ -357,6 +358,23 @@ static void quanta_gbs_init(MachineState *machine)
     npcm7xx_load_kernel(machine, soc);
 }
 
+static void kudo_bmc_init(MachineState *machine)
+{
+    NPCM7xxState *soc;
+
+    soc = npcm7xx_create_soc(machine, KUDO_BMC_POWER_ON_STRAPS);
+    npcm7xx_connect_dram(soc, machine->ram);
+    qdev_realize(DEVICE(soc), NULL, &error_fatal);
+
+    npcm7xx_load_bootrom(machine, soc);
+    npcm7xx_connect_flash(&soc->fiu[0], 0, "mx66u51235f",
+                          drive_get(IF_MTD, 0, 0));
+    npcm7xx_connect_flash(&soc->fiu[1], 0, "mx66u51235f",
+                          drive_get(IF_MTD, 3, 0));
+
+    npcm7xx_load_kernel(machine, soc);
+}
+
 static void npcm7xx_set_soc_type(NPCM7xxMachineClass *nmc, const char *type)
 {
     NPCM7xxClass *sc = NPCM7XX_CLASS(object_class_by_name(type));
@@ -417,6 +435,18 @@ static void gbs_bmc_machine_class_init(ObjectClass *oc, void *data)
     mc->default_ram_size = 1 * GiB;
 }
 
+static void kudo_bmc_machine_class_init(ObjectClass *oc, void *data)
+{
+    NPCM7xxMachineClass *nmc = NPCM7XX_MACHINE_CLASS(oc);
+    MachineClass *mc = MACHINE_CLASS(oc);
+
+    npcm7xx_set_soc_type(nmc, TYPE_NPCM730);
+
+    mc->desc = "Kudo BMC (Cortex-A9)";
+    mc->init = kudo_bmc_init;
+    mc->default_ram_size = 1 * GiB;
+};
+
 static const TypeInfo npcm7xx_machine_types[] = {
     {
         .name           = TYPE_NPCM7XX_MACHINE,
@@ -437,6 +467,10 @@ static const TypeInfo npcm7xx_machine_types[] = {
         .name           = MACHINE_TYPE_NAME("quanta-gbs-bmc"),
         .parent         = TYPE_NPCM7XX_MACHINE,
         .class_init     = gbs_bmc_machine_class_init,
+    }, {
+        .name           = MACHINE_TYPE_NAME("kudo-bmc"),
+        .parent         = TYPE_NPCM7XX_MACHINE,
+        .class_init     = kudo_bmc_machine_class_init,
     },
 };