hw/arm: Add two NPCM7xx-based machines

This adds two new machines, both supported by OpenBMC:

  - npcm750-evb: Nuvoton NPCM750 Evaluation Board.
  - quanta-gsj: A board with a NPCM730 chip.

They rely on the NPCM7xx SoC device to do the heavy lifting. They are
almost completely identical at the moment, apart from the SoC type,
which currently only changes the reset contents of one register
(GCR.MDLR), but they might grow apart a bit more as more functionality
is added.

Both machines can boot the Linux kernel into /bin/sh.

Reviewed-by: Tyrone Ting <kfting@nuvoton.com>
Reviewed-by: Joel Stanley <joel@jms.id.au>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Tested-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Tested-by: Alexander Bulekov <alxndr@bu.edu>
Signed-off-by: Havard Skinnemoen <hskinnemoen@google.com>
Message-id: 20200911052101.2602693-6-hskinnemoen@google.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

1 files changed, 19 insertions, 0 deletions

diff --git a/include/hw/arm/npcm7xx.h b/include/hw/arm/npcm7xx.h
index e68d9c7..ba74958 100644
--- a/include/hw/arm/npcm7xx.h
+++ b/include/hw/arm/npcm7xx.h
@@ -35,6 +35,25 @@
 #define NPCM7XX_SMP_BOOTREG_ADDR        (0xf080013c)  /* GCR.SCRPAD */
 #define NPCM7XX_GIC_CPU_IF_ADDR         (0xf03fe100)  /* GIC within A9 */
 
+typedef struct NPCM7xxMachine {
+    MachineState        parent;
+} NPCM7xxMachine;
+
+#define TYPE_NPCM7XX_MACHINE MACHINE_TYPE_NAME("npcm7xx")
+#define NPCM7XX_MACHINE(obj)                                            \
+    OBJECT_CHECK(NPCM7xxMachine, (obj), TYPE_NPCM7XX_MACHINE)
+
+typedef struct NPCM7xxMachineClass {
+    MachineClass        parent;
+
+    const char          *soc_type;
+} NPCM7xxMachineClass;
+
+#define NPCM7XX_MACHINE_CLASS(klass)                                    \
+    OBJECT_CLASS_CHECK(NPCM7xxMachineClass, (klass), TYPE_NPCM7XX_MACHINE)
+#define NPCM7XX_MACHINE_GET_CLASS(obj)                                  \
+    OBJECT_GET_CLASS(NPCM7xxMachineClass, (obj), TYPE_NPCM7XX_MACHINE)
+
 typedef struct NPCM7xxState {
     DeviceState         parent;