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authorHavard Skinnemoen <hskinnemoen@google.com>2020-09-10 22:20:51 -0700
committerPeter Maydell <peter.maydell@linaro.org>2020-09-14 14:24:58 +0100
commit2d8f048c25ab2b701ea8e14ba5b02d3a8a5c9044 (patch)
tree4294e514fa0587c228a798f886e95e981f108074
parent85fdd74ff074bf59644131cea9e2ae1f2a8d5fd1 (diff)
downloadqemu-arm-2d8f048c25ab2b701ea8e14ba5b02d3a8a5c9044.tar.gz
hw/arm: Add NPCM730 and NPCM750 SoC models
The Nuvoton NPCM7xx SoC family are used to implement Baseboard Management Controllers in servers. While the family includes four SoCs, this patch implements limited support for two of them: NPCM730 (targeted for Data Center applications) and NPCM750 (targeted for Enterprise applications). This patch includes little more than the bare minimum needed to boot a Linux kernel built with NPCM7xx support in direct-kernel mode: - Two Cortex-A9 CPU cores with built-in periperhals. - Global Configuration Registers. - Clock Management. - 3 Timer Modules with 5 timers each. - 4 serial ports. The chips themselves have a lot more features, some of which will be added to the model at a later stage. Reviewed-by: Tyrone Ting <kfting@nuvoton.com> Reviewed-by: Joel Stanley <joel@jms.id.au> 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: 20200911052101.2602693-5-hskinnemoen@google.com Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
-rw-r--r--hw/arm/Kconfig5
-rw-r--r--hw/arm/meson.build1
-rw-r--r--hw/arm/npcm7xx.c407
-rw-r--r--include/hw/arm/npcm7xx.h85
4 files changed, 498 insertions, 0 deletions
diff --git a/hw/arm/Kconfig b/hw/arm/Kconfig
index 4aec9c63f8..cd74642034 100644
--- a/hw/arm/Kconfig
+++ b/hw/arm/Kconfig
@@ -357,6 +357,11 @@ config XLNX_VERSAL
config NPCM7XX
bool
+ select A9MPCORE
+ select ARM_GIC
+ select PL310 # cache controller
+ select SERIAL
+ select UNIMP
config FSL_IMX25
bool
diff --git a/hw/arm/meson.build b/hw/arm/meson.build
index 8480b7f37d..b0967c44c9 100644
--- a/hw/arm/meson.build
+++ b/hw/arm/meson.build
@@ -13,6 +13,7 @@ arm_ss.add(when: 'CONFIG_MICROBIT', if_true: files('microbit.c'))
arm_ss.add(when: 'CONFIG_MUSICPAL', if_true: files('musicpal.c'))
arm_ss.add(when: 'CONFIG_NETDUINO2', if_true: files('netduino2.c'))
arm_ss.add(when: 'CONFIG_NETDUINOPLUS2', if_true: files('netduinoplus2.c'))
+arm_ss.add(when: 'CONFIG_NPCM7XX', if_true: files('npcm7xx.c'))
arm_ss.add(when: 'CONFIG_NSERIES', if_true: files('nseries.c'))
arm_ss.add(when: 'CONFIG_SX1', if_true: files('omap_sx1.c'))
arm_ss.add(when: 'CONFIG_CHEETAH', if_true: files('palm.c'))
diff --git a/hw/arm/npcm7xx.c b/hw/arm/npcm7xx.c
new file mode 100644
index 0000000000..9669ac5fa0
--- /dev/null
+++ b/hw/arm/npcm7xx.c
@@ -0,0 +1,407 @@
+/*
+ * Nuvoton NPCM7xx SoC family.
+ *
+ * Copyright 2020 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.
+ */
+
+#include "qemu/osdep.h"
+
+#include "exec/address-spaces.h"
+#include "hw/arm/boot.h"
+#include "hw/arm/npcm7xx.h"
+#include "hw/char/serial.h"
+#include "hw/loader.h"
+#include "hw/misc/unimp.h"
+#include "hw/qdev-properties.h"
+#include "qapi/error.h"
+#include "qemu/units.h"
+#include "sysemu/sysemu.h"
+
+/*
+ * This covers the whole MMIO space. We'll use this to catch any MMIO accesses
+ * that aren't handled by any device.
+ */
+#define NPCM7XX_MMIO_BA (0x80000000)
+#define NPCM7XX_MMIO_SZ (0x7ffd0000)
+
+/* Core system modules. */
+#define NPCM7XX_L2C_BA (0xf03fc000)
+#define NPCM7XX_CPUP_BA (0xf03fe000)
+#define NPCM7XX_GCR_BA (0xf0800000)
+#define NPCM7XX_CLK_BA (0xf0801000)
+
+/* Internal AHB SRAM */
+#define NPCM7XX_RAM3_BA (0xc0008000)
+#define NPCM7XX_RAM3_SZ (4 * KiB)
+
+/* Memory blocks at the end of the address space */
+#define NPCM7XX_RAM2_BA (0xfffd0000)
+#define NPCM7XX_RAM2_SZ (128 * KiB)
+#define NPCM7XX_ROM_BA (0xffff0000)
+#define NPCM7XX_ROM_SZ (64 * KiB)
+
+/*
+ * Interrupt lines going into the GIC. This does not include internal Cortex-A9
+ * interrupts.
+ */
+enum NPCM7xxInterrupt {
+ NPCM7XX_UART0_IRQ = 2,
+ NPCM7XX_UART1_IRQ,
+ NPCM7XX_UART2_IRQ,
+ NPCM7XX_UART3_IRQ,
+ NPCM7XX_TIMER0_IRQ = 32, /* Timer Module 0 */
+ NPCM7XX_TIMER1_IRQ,
+ NPCM7XX_TIMER2_IRQ,
+ NPCM7XX_TIMER3_IRQ,
+ NPCM7XX_TIMER4_IRQ,
+ NPCM7XX_TIMER5_IRQ, /* Timer Module 1 */
+ NPCM7XX_TIMER6_IRQ,
+ NPCM7XX_TIMER7_IRQ,
+ NPCM7XX_TIMER8_IRQ,
+ NPCM7XX_TIMER9_IRQ,
+ NPCM7XX_TIMER10_IRQ, /* Timer Module 2 */
+ NPCM7XX_TIMER11_IRQ,
+ NPCM7XX_TIMER12_IRQ,
+ NPCM7XX_TIMER13_IRQ,
+ NPCM7XX_TIMER14_IRQ,
+};
+
+/* Total number of GIC interrupts, including internal Cortex-A9 interrupts. */
+#define NPCM7XX_NUM_IRQ (160)
+
+/* Register base address for each Timer Module */
+static const hwaddr npcm7xx_tim_addr[] = {
+ 0xf0008000,
+ 0xf0009000,
+ 0xf000a000,
+};
+
+/* Register base address for each 16550 UART */
+static const hwaddr npcm7xx_uart_addr[] = {
+ 0xf0001000,
+ 0xf0002000,
+ 0xf0003000,
+ 0xf0004000,
+};
+
+static void npcm7xx_write_secondary_boot(ARMCPU *cpu,
+ const struct arm_boot_info *info)
+{
+ /*
+ * The default smpboot stub halts the secondary CPU with a 'wfi'
+ * instruction, but the arch/arm/mach-npcm/platsmp.c in the Linux kernel
+ * does not send an IPI to wake it up, so the second CPU fails to boot. So
+ * we need to provide our own smpboot stub that can not use 'wfi', it has
+ * to spin the secondary CPU until the first CPU writes to the SCRPAD reg.
+ */
+ uint32_t smpboot[] = {
+ 0xe59f2018, /* ldr r2, bootreg_addr */
+ 0xe3a00000, /* mov r0, #0 */
+ 0xe5820000, /* str r0, [r2] */
+ 0xe320f002, /* wfe */
+ 0xe5921000, /* ldr r1, [r2] */
+ 0xe1110001, /* tst r1, r1 */
+ 0x0afffffb, /* beq <wfe> */
+ 0xe12fff11, /* bx r1 */
+ NPCM7XX_SMP_BOOTREG_ADDR,
+ };
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(smpboot); i++) {
+ smpboot[i] = tswap32(smpboot[i]);
+ }
+
+ rom_add_blob_fixed("smpboot", smpboot, sizeof(smpboot),
+ NPCM7XX_SMP_LOADER_START);
+}
+
+static struct arm_boot_info npcm7xx_binfo = {
+ .loader_start = NPCM7XX_LOADER_START,
+ .smp_loader_start = NPCM7XX_SMP_LOADER_START,
+ .smp_bootreg_addr = NPCM7XX_SMP_BOOTREG_ADDR,
+ .gic_cpu_if_addr = NPCM7XX_GIC_CPU_IF_ADDR,
+ .write_secondary_boot = npcm7xx_write_secondary_boot,
+ .board_id = -1,
+};
+
+void npcm7xx_load_kernel(MachineState *machine, NPCM7xxState *soc)
+{
+ NPCM7xxClass *sc = NPCM7XX_GET_CLASS(soc);
+
+ npcm7xx_binfo.ram_size = machine->ram_size;
+ npcm7xx_binfo.nb_cpus = sc->num_cpus;
+
+ arm_load_kernel(&soc->cpu[0], machine, &npcm7xx_binfo);
+}
+
+static qemu_irq npcm7xx_irq(NPCM7xxState *s, int n)
+{
+ return qdev_get_gpio_in(DEVICE(&s->a9mpcore), n);
+}
+
+static void npcm7xx_init(Object *obj)
+{
+ NPCM7xxState *s = NPCM7XX(obj);
+ int i;
+
+ for (i = 0; i < NPCM7XX_MAX_NUM_CPUS; i++) {
+ object_initialize_child(obj, "cpu[*]", &s->cpu[i],
+ ARM_CPU_TYPE_NAME("cortex-a9"));
+ }
+
+ object_initialize_child(obj, "a9mpcore", &s->a9mpcore, TYPE_A9MPCORE_PRIV);
+ object_initialize_child(obj, "gcr", &s->gcr, TYPE_NPCM7XX_GCR);
+ object_property_add_alias(obj, "power-on-straps", OBJECT(&s->gcr),
+ "power-on-straps");
+ object_initialize_child(obj, "clk", &s->clk, TYPE_NPCM7XX_CLK);
+
+ for (i = 0; i < ARRAY_SIZE(s->tim); i++) {
+ object_initialize_child(obj, "tim[*]", &s->tim[i], TYPE_NPCM7XX_TIMER);
+ }
+}
+
+static void npcm7xx_realize(DeviceState *dev, Error **errp)
+{
+ NPCM7xxState *s = NPCM7XX(dev);
+ NPCM7xxClass *nc = NPCM7XX_GET_CLASS(s);
+ int i;
+
+ if (memory_region_size(s->dram) > NPCM7XX_DRAM_SZ) {
+ error_setg(errp, "%s: NPCM7xx cannot address more than %" PRIu64
+ " MiB of DRAM", __func__, NPCM7XX_DRAM_SZ / MiB);
+ return;
+ }
+
+ /* CPUs */
+ for (i = 0; i < nc->num_cpus; i++) {
+ object_property_set_int(OBJECT(&s->cpu[i]), "mp-affinity",
+ arm_cpu_mp_affinity(i, NPCM7XX_MAX_NUM_CPUS),
+ &error_abort);
+ object_property_set_int(OBJECT(&s->cpu[i]), "reset-cbar",
+ NPCM7XX_GIC_CPU_IF_ADDR, &error_abort);
+ object_property_set_bool(OBJECT(&s->cpu[i]), "reset-hivecs", true,
+ &error_abort);
+
+ /* Disable security extensions. */
+ object_property_set_bool(OBJECT(&s->cpu[i]), "has_el3", false,
+ &error_abort);
+
+ if (!qdev_realize(DEVICE(&s->cpu[i]), NULL, errp)) {
+ return;
+ }
+ }
+
+ /* A9MPCORE peripherals. Can only fail if we pass bad parameters here. */
+ object_property_set_int(OBJECT(&s->a9mpcore), "num-cpu", nc->num_cpus,
+ &error_abort);
+ object_property_set_int(OBJECT(&s->a9mpcore), "num-irq", NPCM7XX_NUM_IRQ,
+ &error_abort);
+ sysbus_realize(SYS_BUS_DEVICE(&s->a9mpcore), &error_abort);
+ sysbus_mmio_map(SYS_BUS_DEVICE(&s->a9mpcore), 0, NPCM7XX_CPUP_BA);
+
+ for (i = 0; i < nc->num_cpus; i++) {
+ sysbus_connect_irq(SYS_BUS_DEVICE(&s->a9mpcore), i,
+ qdev_get_gpio_in(DEVICE(&s->cpu[i]), ARM_CPU_IRQ));
+ sysbus_connect_irq(SYS_BUS_DEVICE(&s->a9mpcore), i + nc->num_cpus,
+ qdev_get_gpio_in(DEVICE(&s->cpu[i]), ARM_CPU_FIQ));
+ }
+
+ /* L2 cache controller */
+ sysbus_create_simple("l2x0", NPCM7XX_L2C_BA, NULL);
+
+ /* System Global Control Registers (GCR). Can fail due to user input. */
+ object_property_set_int(OBJECT(&s->gcr), "disabled-modules",
+ nc->disabled_modules, &error_abort);
+ object_property_add_const_link(OBJECT(&s->gcr), "dram-mr", OBJECT(s->dram));
+ if (!sysbus_realize(SYS_BUS_DEVICE(&s->gcr), errp)) {
+ return;
+ }
+ sysbus_mmio_map(SYS_BUS_DEVICE(&s->gcr), 0, NPCM7XX_GCR_BA);
+
+ /* Clock Control Registers (CLK). Cannot fail. */
+ sysbus_realize(SYS_BUS_DEVICE(&s->clk), &error_abort);
+ sysbus_mmio_map(SYS_BUS_DEVICE(&s->clk), 0, NPCM7XX_CLK_BA);
+
+ /* Timer Modules (TIM). Cannot fail. */
+ QEMU_BUILD_BUG_ON(ARRAY_SIZE(npcm7xx_tim_addr) != ARRAY_SIZE(s->tim));
+ for (i = 0; i < ARRAY_SIZE(s->tim); i++) {
+ SysBusDevice *sbd = SYS_BUS_DEVICE(&s->tim[i]);
+ int first_irq;
+ int j;
+
+ sysbus_realize(sbd, &error_abort);
+ sysbus_mmio_map(sbd, 0, npcm7xx_tim_addr[i]);
+
+ first_irq = NPCM7XX_TIMER0_IRQ + i * NPCM7XX_TIMERS_PER_CTRL;
+ for (j = 0; j < NPCM7XX_TIMERS_PER_CTRL; j++) {
+ qemu_irq irq = npcm7xx_irq(s, first_irq + j);
+ sysbus_connect_irq(sbd, j, irq);
+ }
+ }
+
+ /* UART0..3 (16550 compatible) */
+ for (i = 0; i < ARRAY_SIZE(npcm7xx_uart_addr); i++) {
+ serial_mm_init(get_system_memory(), npcm7xx_uart_addr[i], 2,
+ npcm7xx_irq(s, NPCM7XX_UART0_IRQ + i), 115200,
+ serial_hd(i), DEVICE_LITTLE_ENDIAN);
+ }
+
+ /* RAM2 (SRAM) */
+ memory_region_init_ram(&s->sram, OBJECT(dev), "ram2",
+ NPCM7XX_RAM2_SZ, &error_abort);
+ memory_region_add_subregion(get_system_memory(), NPCM7XX_RAM2_BA, &s->sram);
+
+ /* RAM3 (SRAM) */
+ memory_region_init_ram(&s->ram3, OBJECT(dev), "ram3",
+ NPCM7XX_RAM3_SZ, &error_abort);
+ memory_region_add_subregion(get_system_memory(), NPCM7XX_RAM3_BA, &s->ram3);
+
+ /* Internal ROM */
+ memory_region_init_rom(&s->irom, OBJECT(dev), "irom", NPCM7XX_ROM_SZ,
+ &error_abort);
+ memory_region_add_subregion(get_system_memory(), NPCM7XX_ROM_BA, &s->irom);
+
+ create_unimplemented_device("npcm7xx.shm", 0xc0001000, 4 * KiB);
+ create_unimplemented_device("npcm7xx.vdmx", 0xe0800000, 4 * KiB);
+ create_unimplemented_device("npcm7xx.pcierc", 0xe1000000, 64 * KiB);
+ create_unimplemented_device("npcm7xx.kcs", 0xf0007000, 4 * KiB);
+ create_unimplemented_device("npcm7xx.rng", 0xf000b000, 4 * KiB);
+ create_unimplemented_device("npcm7xx.adc", 0xf000c000, 4 * KiB);
+ create_unimplemented_device("npcm7xx.gfxi", 0xf000e000, 4 * KiB);
+ create_unimplemented_device("npcm7xx.gpio[0]", 0xf0010000, 4 * KiB);
+ create_unimplemented_device("npcm7xx.gpio[1]", 0xf0011000, 4 * KiB);
+ create_unimplemented_device("npcm7xx.gpio[2]", 0xf0012000, 4 * KiB);
+ create_unimplemented_device("npcm7xx.gpio[3]", 0xf0013000, 4 * KiB);
+ create_unimplemented_device("npcm7xx.gpio[4]", 0xf0014000, 4 * KiB);
+ create_unimplemented_device("npcm7xx.gpio[5]", 0xf0015000, 4 * KiB);
+ create_unimplemented_device("npcm7xx.gpio[6]", 0xf0016000, 4 * KiB);
+ create_unimplemented_device("npcm7xx.gpio[7]", 0xf0017000, 4 * KiB);
+ create_unimplemented_device("npcm7xx.smbus[0]", 0xf0080000, 4 * KiB);
+ create_unimplemented_device("npcm7xx.smbus[1]", 0xf0081000, 4 * KiB);
+ create_unimplemented_device("npcm7xx.smbus[2]", 0xf0082000, 4 * KiB);
+ create_unimplemented_device("npcm7xx.smbus[3]", 0xf0083000, 4 * KiB);
+ create_unimplemented_device("npcm7xx.smbus[4]", 0xf0084000, 4 * KiB);
+ create_unimplemented_device("npcm7xx.smbus[5]", 0xf0085000, 4 * KiB);
+ create_unimplemented_device("npcm7xx.smbus[6]", 0xf0086000, 4 * KiB);
+ create_unimplemented_device("npcm7xx.smbus[7]", 0xf0087000, 4 * KiB);
+ create_unimplemented_device("npcm7xx.smbus[8]", 0xf0088000, 4 * KiB);
+ create_unimplemented_device("npcm7xx.smbus[9]", 0xf0089000, 4 * KiB);
+ create_unimplemented_device("npcm7xx.smbus[10]", 0xf008a000, 4 * KiB);
+ create_unimplemented_device("npcm7xx.smbus[11]", 0xf008b000, 4 * KiB);
+ create_unimplemented_device("npcm7xx.smbus[12]", 0xf008c000, 4 * KiB);
+ create_unimplemented_device("npcm7xx.smbus[13]", 0xf008d000, 4 * KiB);
+ create_unimplemented_device("npcm7xx.smbus[14]", 0xf008e000, 4 * KiB);
+ create_unimplemented_device("npcm7xx.smbus[15]", 0xf008f000, 4 * KiB);
+ create_unimplemented_device("npcm7xx.espi", 0xf009f000, 4 * KiB);
+ create_unimplemented_device("npcm7xx.peci", 0xf0100000, 4 * KiB);
+ create_unimplemented_device("npcm7xx.siox[1]", 0xf0101000, 4 * KiB);
+ create_unimplemented_device("npcm7xx.siox[2]", 0xf0102000, 4 * KiB);
+ create_unimplemented_device("npcm7xx.pwm[0]", 0xf0103000, 4 * KiB);
+ create_unimplemented_device("npcm7xx.pwm[1]", 0xf0104000, 4 * KiB);
+ create_unimplemented_device("npcm7xx.mft[0]", 0xf0180000, 4 * KiB);
+ create_unimplemented_device("npcm7xx.mft[1]", 0xf0181000, 4 * KiB);
+ create_unimplemented_device("npcm7xx.mft[2]", 0xf0182000, 4 * KiB);
+ create_unimplemented_device("npcm7xx.mft[3]", 0xf0183000, 4 * KiB);
+ create_unimplemented_device("npcm7xx.mft[4]", 0xf0184000, 4 * KiB);
+ create_unimplemented_device("npcm7xx.mft[5]", 0xf0185000, 4 * KiB);
+ create_unimplemented_device("npcm7xx.mft[6]", 0xf0186000, 4 * KiB);
+ create_unimplemented_device("npcm7xx.mft[7]", 0xf0187000, 4 * KiB);
+ create_unimplemented_device("npcm7xx.pspi1", 0xf0200000, 4 * KiB);
+ create_unimplemented_device("npcm7xx.pspi2", 0xf0201000, 4 * KiB);
+ create_unimplemented_device("npcm7xx.ahbpci", 0xf0400000, 1 * MiB);
+ create_unimplemented_device("npcm7xx.mcphy", 0xf05f0000, 64 * KiB);
+ create_unimplemented_device("npcm7xx.gmac1", 0xf0802000, 8 * KiB);
+ create_unimplemented_device("npcm7xx.gmac2", 0xf0804000, 8 * KiB);
+ create_unimplemented_device("npcm7xx.ehci", 0xf0806000, 4 * KiB);
+ create_unimplemented_device("npcm7xx.ohci", 0xf0807000, 4 * KiB);
+ create_unimplemented_device("npcm7xx.vcd", 0xf0810000, 64 * KiB);
+ create_unimplemented_device("npcm7xx.ece", 0xf0820000, 8 * KiB);
+ create_unimplemented_device("npcm7xx.vdma", 0xf0822000, 8 * KiB);
+ create_unimplemented_device("npcm7xx.emc1", 0xf0825000, 4 * KiB);
+ create_unimplemented_device("npcm7xx.emc2", 0xf0826000, 4 * KiB);
+ create_unimplemented_device("npcm7xx.usbd[0]", 0xf0830000, 4 * KiB);
+ create_unimplemented_device("npcm7xx.usbd[1]", 0xf0831000, 4 * KiB);
+ create_unimplemented_device("npcm7xx.usbd[2]", 0xf0832000, 4 * KiB);
+ create_unimplemented_device("npcm7xx.usbd[3]", 0xf0833000, 4 * KiB);
+ create_unimplemented_device("npcm7xx.usbd[4]", 0xf0834000, 4 * KiB);
+ create_unimplemented_device("npcm7xx.usbd[5]", 0xf0835000, 4 * KiB);
+ create_unimplemented_device("npcm7xx.usbd[6]", 0xf0836000, 4 * KiB);
+ create_unimplemented_device("npcm7xx.usbd[7]", 0xf0837000, 4 * KiB);
+ create_unimplemented_device("npcm7xx.usbd[8]", 0xf0838000, 4 * KiB);
+ create_unimplemented_device("npcm7xx.usbd[9]", 0xf0839000, 4 * KiB);
+ create_unimplemented_device("npcm7xx.sd", 0xf0840000, 8 * KiB);
+ create_unimplemented_device("npcm7xx.mmc", 0xf0842000, 8 * KiB);
+ create_unimplemented_device("npcm7xx.pcimbx", 0xf0848000, 512 * KiB);
+ create_unimplemented_device("npcm7xx.aes", 0xf0858000, 4 * KiB);
+ create_unimplemented_device("npcm7xx.des", 0xf0859000, 4 * KiB);
+ create_unimplemented_device("npcm7xx.sha", 0xf085a000, 4 * KiB);
+ create_unimplemented_device("npcm7xx.secacc", 0xf085b000, 4 * KiB);
+ create_unimplemented_device("npcm7xx.spixcs0", 0xf8000000, 16 * MiB);
+ create_unimplemented_device("npcm7xx.spixcs1", 0xf9000000, 16 * MiB);
+ create_unimplemented_device("npcm7xx.spix", 0xfb001000, 4 * KiB);
+}
+
+static Property npcm7xx_properties[] = {
+ DEFINE_PROP_LINK("dram-mr", NPCM7xxState, dram, TYPE_MEMORY_REGION,
+ MemoryRegion *),
+ DEFINE_PROP_END_OF_LIST(),
+};
+
+static void npcm7xx_class_init(ObjectClass *oc, void *data)
+{
+ DeviceClass *dc = DEVICE_CLASS(oc);
+
+ dc->realize = npcm7xx_realize;
+ dc->user_creatable = false;
+ device_class_set_props(dc, npcm7xx_properties);
+}
+
+static void npcm730_class_init(ObjectClass *oc, void *data)
+{
+ NPCM7xxClass *nc = NPCM7XX_CLASS(oc);
+
+ /* NPCM730 is optimized for data center use, so no graphics, etc. */
+ nc->disabled_modules = 0x00300395;
+ nc->num_cpus = 2;
+}
+
+static void npcm750_class_init(ObjectClass *oc, void *data)
+{
+ NPCM7xxClass *nc = NPCM7XX_CLASS(oc);
+
+ /* NPCM750 has 2 cores and a full set of peripherals */
+ nc->disabled_modules = 0x00000000;
+ nc->num_cpus = 2;
+}
+
+static const TypeInfo npcm7xx_soc_types[] = {
+ {
+ .name = TYPE_NPCM7XX,
+ .parent = TYPE_DEVICE,
+ .instance_size = sizeof(NPCM7xxState),
+ .instance_init = npcm7xx_init,
+ .class_size = sizeof(NPCM7xxClass),
+ .class_init = npcm7xx_class_init,
+ .abstract = true,
+ }, {
+ .name = TYPE_NPCM730,
+ .parent = TYPE_NPCM7XX,
+ .class_init = npcm730_class_init,
+ }, {
+ .name = TYPE_NPCM750,
+ .parent = TYPE_NPCM7XX,
+ .class_init = npcm750_class_init,
+ },
+};
+
+DEFINE_TYPES(npcm7xx_soc_types);
diff --git a/include/hw/arm/npcm7xx.h b/include/hw/arm/npcm7xx.h
new file mode 100644
index 0000000000..e68d9c79e6
--- /dev/null
+++ b/include/hw/arm/npcm7xx.h
@@ -0,0 +1,85 @@
+/*
+ * Nuvoton NPCM7xx SoC family.
+ *
+ * Copyright 2020 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 NPCM7XX_H
+#define NPCM7XX_H
+
+#include "hw/boards.h"
+#include "hw/cpu/a9mpcore.h"
+#include "hw/misc/npcm7xx_clk.h"
+#include "hw/misc/npcm7xx_gcr.h"
+#include "hw/timer/npcm7xx_timer.h"
+#include "target/arm/cpu.h"
+
+#define NPCM7XX_MAX_NUM_CPUS (2)
+
+/* The first half of the address space is reserved for DDR4 DRAM. */
+#define NPCM7XX_DRAM_BA (0x00000000)
+#define NPCM7XX_DRAM_SZ (2 * GiB)
+
+/* Magic addresses for setting up direct kernel booting and SMP boot stubs. */
+#define NPCM7XX_LOADER_START (0x00000000) /* Start of SDRAM */
+#define NPCM7XX_SMP_LOADER_START (0xffff0000) /* Boot ROM */
+#define NPCM7XX_SMP_BOOTREG_ADDR (0xf080013c) /* GCR.SCRPAD */
+#define NPCM7XX_GIC_CPU_IF_ADDR (0xf03fe100) /* GIC within A9 */
+
+typedef struct NPCM7xxState {
+ DeviceState parent;
+
+ ARMCPU cpu[NPCM7XX_MAX_NUM_CPUS];
+ A9MPPrivState a9mpcore;
+
+ MemoryRegion sram;
+ MemoryRegion irom;
+ MemoryRegion ram3;
+ MemoryRegion *dram;
+
+ NPCM7xxGCRState gcr;
+ NPCM7xxCLKState clk;
+ NPCM7xxTimerCtrlState tim[3];
+} NPCM7xxState;
+
+#define TYPE_NPCM7XX "npcm7xx"
+#define NPCM7XX(obj) OBJECT_CHECK(NPCM7xxState, (obj), TYPE_NPCM7XX)
+
+#define TYPE_NPCM730 "npcm730"
+#define TYPE_NPCM750 "npcm750"
+
+typedef struct NPCM7xxClass {
+ DeviceClass parent;
+
+ /* Bitmask of modules that are permanently disabled on this chip. */
+ uint32_t disabled_modules;
+ /* Number of CPU cores enabled in this SoC class (may be 1 or 2). */
+ uint32_t num_cpus;
+} NPCM7xxClass;
+
+#define NPCM7XX_CLASS(klass) \
+ OBJECT_CLASS_CHECK(NPCM7xxClass, (klass), TYPE_NPCM7XX)
+#define NPCM7XX_GET_CLASS(obj) \
+ OBJECT_GET_CLASS(NPCM7xxClass, (obj), TYPE_NPCM7XX)
+
+/**
+ * npcm7xx_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 NPCM7xx
+ * derivative and call arm_load_kernel() to set up loading of the kernel, etc.
+ * into memory, if requested by the user.
+ */
+void npcm7xx_load_kernel(MachineState *machine, NPCM7xxState *soc);
+
+#endif /* NPCM7XX_H */