hw/arm: Add NPCM8XX SoC

Signed-off-by: Hao Wu <wuhaotsh@google.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 20250219184609.1839281-16-wuhaotsh@google.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

configs/devices/aarch64-softmmu/default.mak

@@ -8,3 +8,4 @@ include ../arm-softmmu/default.mak
 # CONFIG_XLNX_ZYNQMP_ARM=n
 # CONFIG_XLNX_VERSAL=n
 # CONFIG_SBSA_REF=n
+# CONFIG_NPCM8XX=n

hw/arm/Kconfig

@@ -481,6 +481,19 @@ config NPCM7XX
     select PCA954X
     select USB_OHCI_SYSBUS
 
+config NPCM8XX
+    bool
+    default y
+    depends on TCG && AARCH64
+    select ARM_GIC
+    select SMBUS
+    select PL310  # cache controller
+    select NPCM7XX
+    select SERIAL
+    select SSI
+    select UNIMP
+
+
 config FSL_IMX25
     bool
     default y

hw/arm/meson.build

@@ -12,6 +12,7 @@ arm_ss.add(when: 'CONFIG_MUSICPAL', if_true: files('musicpal.c'))
 arm_ss.add(when: 'CONFIG_NETDUINOPLUS2', if_true: files('netduinoplus2.c'))
 arm_ss.add(when: 'CONFIG_OLIMEX_STM32_H405', if_true: files('olimex-stm32-h405.c'))
 arm_ss.add(when: 'CONFIG_NPCM7XX', if_true: files('npcm7xx.c', 'npcm7xx_boards.c'))
+arm_ss.add(when: 'CONFIG_NPCM8XX', if_true: files('npcm8xx.c'))
 arm_ss.add(when: 'CONFIG_REALVIEW', if_true: files('realview.c'))
 arm_ss.add(when: 'CONFIG_SBSA_REF', if_true: files('sbsa-ref.c'))
 arm_ss.add(when: 'CONFIG_STELLARIS', if_true: files('stellaris.c'))

include/hw/arm/npcm8xx.h

@@ -0,0 +1,106 @@
+/*
+ * Nuvoton NPCM8xx SoC family.
+ *
+ * Copyright 2022 Google LLC
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+ * for more details.
+ */
+#ifndef NPCM8XX_H
+#define NPCM8XX_H
+
+#include "hw/adc/npcm7xx_adc.h"
+#include "hw/core/split-irq.h"
+#include "hw/cpu/cluster.h"
+#include "hw/gpio/npcm7xx_gpio.h"
+#include "hw/i2c/npcm7xx_smbus.h"
+#include "hw/intc/arm_gic_common.h"
+#include "hw/mem/npcm7xx_mc.h"
+#include "hw/misc/npcm_clk.h"
+#include "hw/misc/npcm_gcr.h"
+#include "hw/misc/npcm7xx_mft.h"
+#include "hw/misc/npcm7xx_pwm.h"
+#include "hw/misc/npcm7xx_rng.h"
+#include "hw/net/npcm7xx_emc.h"
+#include "hw/nvram/npcm7xx_otp.h"
+#include "hw/sd/npcm7xx_sdhci.h"
+#include "hw/timer/npcm7xx_timer.h"
+#include "hw/ssi/npcm7xx_fiu.h"
+#include "hw/usb/hcd-ehci.h"
+#include "hw/usb/hcd-ohci.h"
+#include "target/arm/cpu.h"
+
+#define NPCM8XX_MAX_NUM_CPUS    (4)
+
+/* The first half of the address space is reserved for DDR4 DRAM. */
+#define NPCM8XX_DRAM_BA         (0x00000000)
+#define NPCM8XX_DRAM_SZ         (2 * GiB)
+
+/* Magic addresses for setting up direct kernel booting and SMP boot stubs. */
+#define NPCM8XX_LOADER_START            (0x00000000)  /* Start of SDRAM */
+#define NPCM8XX_SMP_LOADER_START        (0xffff0000)  /* Boot ROM */
+#define NPCM8XX_SMP_BOOTREG_ADDR        (0xf080013c)  /* GCR.SCRPAD */
+#define NPCM8XX_BOARD_SETUP_ADDR        (0xffff1000)  /* Boot ROM */
+
+#define NPCM8XX_NR_PWM_MODULES 3
+
+struct NPCM8xxState {
+    DeviceState         parent_obj;
+
+    ARMCPU              cpu[NPCM8XX_MAX_NUM_CPUS];
+    CPUClusterState     cpu_cluster;
+    GICState            gic;
+
+    MemoryRegion        sram;
+    MemoryRegion        irom;
+    MemoryRegion        ram3;
+    MemoryRegion        *dram;
+
+    NPCMGCRState        gcr;
+    NPCMCLKState        clk;
+    NPCM7xxTimerCtrlState tim[3];
+    NPCM7xxADCState     adc;
+    NPCM7xxPWMState     pwm[NPCM8XX_NR_PWM_MODULES];
+    NPCM7xxMFTState     mft[8];
+    NPCM7xxOTPState     fuse_array;
+    NPCM7xxMCState      mc;
+    NPCM7xxRNGState     rng;
+    NPCM7xxGPIOState    gpio[8];
+    NPCM7xxSMBusState   smbus[27];
+    EHCISysBusState     ehci[2];
+    OHCISysBusState     ohci[2];
+    NPCM7xxFIUState     fiu[3];
+    NPCM7xxSDHCIState   mmc;
+};
+
+struct NPCM8xxClass {
+    DeviceClass         parent_class;
+
+    /* Bitmask of modules that are permanently disabled on this chip. */
+    uint32_t            disabled_modules;
+    /* Number of CPU cores enabled in this SoC class. */
+    uint32_t            num_cpus;
+};
+
+#define TYPE_NPCM8XX    "npcm8xx"
+OBJECT_DECLARE_TYPE(NPCM8xxState, NPCM8xxClass, NPCM8XX)
+
+/**
+ * npcm8xx_load_kernel - Loads memory with everything needed to boot
+ * @machine - The machine containing the SoC to be booted.
+ * @soc - The SoC containing the CPU to be booted.
+ *
+ * This will set up the ARM boot info structure for the specific NPCM8xx
+ * derivative and call arm_load_kernel() to set up loading of the kernel, etc.
+ * into memory, if requested by the user.
+ */
+void npcm8xx_load_kernel(MachineState *machine, NPCM8xxState *soc);
+
+#endif /* NPCM8XX_H */