hw/arm/aspeed_ast27x0-tsp.c - qemu - Git at Google

 /*
  * ASPEED Ast27x0 TSP Coprocessor
  *
  * Copyright (C) 2025 ASPEED Technology Inc.
  *
  * This code is licensed under the GPL version 2 or later.  See
  * the COPYING file in the top-level directory.
  *
  * SPDX-License-Identifier: GPL-2.0-or-later
  */

 #include "qemu/osdep.h"
 #include "qapi/error.h"
 #include "hw/qdev-clock.h"
 #include "hw/misc/unimp.h"
 #include "hw/arm/aspeed_soc.h"
 #include "hw/arm/aspeed_coprocessor.h"

 #define AST2700_TSP_SDRAM_SIZE (512 * MiB)

 static const hwaddr aspeed_soc_ast27x0tsp_memmap[] = {
     [ASPEED_DEV_SDRAM]     =  0x00000000,
     [ASPEED_DEV_SRAM]      =  0x70000000,
     [ASPEED_DEV_INTC]      =  0x72100000,
     [ASPEED_DEV_SCU]       =  0x72C02000,
     [ASPEED_DEV_SCUIO]     =  0x74C02000,
     [ASPEED_DEV_UART0]     =  0x74C33000,
     [ASPEED_DEV_UART1]     =  0x74C33100,
     [ASPEED_DEV_UART2]     =  0x74C33200,
     [ASPEED_DEV_UART3]     =  0x74C33300,
     [ASPEED_DEV_UART4]     =  0x72C1A000,
     [ASPEED_DEV_INTCIO]    =  0x74C18000,
     [ASPEED_DEV_IPC0]      =  0x72C1C000,
     [ASPEED_DEV_IPC1]      =  0x74C39000,
     [ASPEED_DEV_UART5]     =  0x74C33400,
     [ASPEED_DEV_UART6]     =  0x74C33500,
     [ASPEED_DEV_UART7]     =  0x74C33600,
     [ASPEED_DEV_UART8]     =  0x74C33700,
     [ASPEED_DEV_UART9]     =  0x74C33800,
     [ASPEED_DEV_UART10]    =  0x74C33900,
     [ASPEED_DEV_UART11]    =  0x74C33A00,
     [ASPEED_DEV_UART12]    =  0x74C33B00,
     [ASPEED_DEV_TIMER1]    =  0x72C10000,
 };

 static const int aspeed_soc_ast27x0tsp_irqmap[] = {
     [ASPEED_DEV_SCU]       = 12,
     [ASPEED_DEV_UART0]     = 164,
     [ASPEED_DEV_UART1]     = 164,
     [ASPEED_DEV_UART2]     = 164,
     [ASPEED_DEV_UART3]     = 164,
     [ASPEED_DEV_UART4]     = 8,
     [ASPEED_DEV_UART5]     = 164,
     [ASPEED_DEV_UART6]     = 164,
     [ASPEED_DEV_UART7]     = 164,
     [ASPEED_DEV_UART8]     = 164,
     [ASPEED_DEV_UART9]     = 164,
     [ASPEED_DEV_UART10]    = 164,
     [ASPEED_DEV_UART11]    = 164,
     [ASPEED_DEV_UART12]    = 164,
     [ASPEED_DEV_TIMER1]    = 16,
 };

 /* TSPINT 164 */
 static const int ast2700_tsp132_tsp164_intcmap[] = {
     [ASPEED_DEV_UART0]     = 7,
     [ASPEED_DEV_UART1]     = 8,
     [ASPEED_DEV_UART2]     = 9,
     [ASPEED_DEV_UART3]     = 10,
     [ASPEED_DEV_UART5]     = 11,
     [ASPEED_DEV_UART6]     = 12,
     [ASPEED_DEV_UART7]     = 13,
     [ASPEED_DEV_UART8]     = 14,
     [ASPEED_DEV_UART9]     = 15,
     [ASPEED_DEV_UART10]    = 16,
     [ASPEED_DEV_UART11]    = 17,
     [ASPEED_DEV_UART12]    = 18,
 };

 struct nvic_intc_irq_info {
     int irq;
     int intc_idx;
     int orgate_idx;
     const int *ptr;
 };

 static struct nvic_intc_irq_info ast2700_tsp_intcmap[] = {
     {160, 1, 0, NULL},
     {161, 1, 1, NULL},
     {162, 1, 2, NULL},
     {163, 1, 3, NULL},
     {164, 1, 4, ast2700_tsp132_tsp164_intcmap},
     {165, 1, 5, NULL},
     {166, 1, 6, NULL},
     {167, 1, 7, NULL},
     {168, 1, 8, NULL},
     {169, 1, 9, NULL},
     {128, 0, 1, NULL},
     {129, 0, 2, NULL},
     {130, 0, 3, NULL},
     {131, 0, 4, NULL},
     {132, 0, 5, ast2700_tsp132_tsp164_intcmap},
     {133, 0, 6, NULL},
     {134, 0, 7, NULL},
     {135, 0, 8, NULL},
     {136, 0, 9, NULL},
 };

 static qemu_irq aspeed_soc_ast27x0tsp_get_irq(AspeedCoprocessorState *s,
                                               int dev)
 {
     Aspeed27x0CoprocessorState *a = ASPEED27X0TSP_COPROCESSOR(s);
     AspeedCoprocessorClass *sc = ASPEED_COPROCESSOR_GET_CLASS(s);

     int or_idx;
     int idx;
     int i;

     for (i = 0; i < ARRAY_SIZE(ast2700_tsp_intcmap); i++) {
         if (sc->irqmap[dev] == ast2700_tsp_intcmap[i].irq) {
             assert(ast2700_tsp_intcmap[i].ptr);
             or_idx = ast2700_tsp_intcmap[i].orgate_idx;
             idx = ast2700_tsp_intcmap[i].intc_idx;
             return qdev_get_gpio_in(DEVICE(&a->intc[idx].orgates[or_idx]),
                                     ast2700_tsp_intcmap[i].ptr[dev]);
         }
     }

     return qdev_get_gpio_in(DEVICE(&a->armv7m), sc->irqmap[dev]);
 }

 static void aspeed_soc_ast27x0tsp_init(Object *obj)
 {
     Aspeed27x0CoprocessorState *a = ASPEED27X0TSP_COPROCESSOR(obj);
     AspeedCoprocessorState *s = ASPEED_COPROCESSOR(obj);

     object_initialize_child(obj, "armv7m", &a->armv7m, TYPE_ARMV7M);
     s->sysclk = qdev_init_clock_in(DEVICE(s), "sysclk", NULL, NULL, 0);

     object_initialize_child(obj, "intc0", &a->intc[0],
                             TYPE_ASPEED_2700TSP_INTC);
     object_initialize_child(obj, "intc1", &a->intc[1],
                             TYPE_ASPEED_2700TSP_INTCIO);

     object_initialize_child(obj, "timerctrl", &s->timerctrl,
                             TYPE_UNIMPLEMENTED_DEVICE);
     object_initialize_child(obj, "ipc0", &a->ipc[0],
                             TYPE_UNIMPLEMENTED_DEVICE);
     object_initialize_child(obj, "ipc1", &a->ipc[1],
                             TYPE_UNIMPLEMENTED_DEVICE);
     object_initialize_child(obj, "scuio", &a->scuio,
                             TYPE_UNIMPLEMENTED_DEVICE);
 }

 static void aspeed_soc_ast27x0tsp_realize(DeviceState *dev_soc, Error **errp)
 {
     Aspeed27x0CoprocessorState *a = ASPEED27X0TSP_COPROCESSOR(dev_soc);
     AspeedCoprocessorState *s = ASPEED_COPROCESSOR(dev_soc);
     AspeedCoprocessorClass *sc = ASPEED_COPROCESSOR_GET_CLASS(s);
     DeviceState *armv7m;
     g_autofree char *sdram_name = NULL;
     int i;

     if (!clock_has_source(s->sysclk)) {
         error_setg(errp, "sysclk clock must be wired up by the board code");
         return;
     }

     /* AST27X0 TSP Core */
     armv7m = DEVICE(&a->armv7m);
     qdev_prop_set_uint32(armv7m, "num-irq", 256);
     qdev_prop_set_string(armv7m, "cpu-type",
                          aspeed_soc_cpu_type(sc->valid_cpu_types));
     qdev_connect_clock_in(armv7m, "cpuclk", s->sysclk);
     object_property_set_link(OBJECT(&a->armv7m), "memory",
                              OBJECT(s->memory), &error_abort);
     sysbus_realize(SYS_BUS_DEVICE(&a->armv7m), &error_abort);

     /* SDRAM */
     sdram_name = g_strdup_printf("aspeed.sdram.%d",
                                  CPU(a->armv7m.cpu)->cpu_index);
     if (!memory_region_init_ram(&s->sdram, OBJECT(s), sdram_name,
                                 AST2700_TSP_SDRAM_SIZE, errp)) {
         return;
     }
     memory_region_add_subregion(s->memory,
                                 sc->memmap[ASPEED_DEV_SDRAM],
                                 &s->sdram);

     /* SRAM */
     memory_region_init_alias(&s->sram_alias, OBJECT(s), "sram.alias",
                              s->sram, 0, memory_region_size(s->sram));
     memory_region_add_subregion(s->memory, sc->memmap[ASPEED_DEV_SRAM],
                                 &s->sram_alias);

     /* SCU */
     memory_region_init_alias(&s->scu_alias, OBJECT(s), "scu.alias",
                              &s->scu->iomem, 0,
                              memory_region_size(&s->scu->iomem));
     memory_region_add_subregion(s->memory, sc->memmap[ASPEED_DEV_SCU],
                                 &s->scu_alias);

     /* INTC */
     if (!sysbus_realize(SYS_BUS_DEVICE(&a->intc[0]), errp)) {
         return;
     }

     aspeed_mmio_map(s->memory, SYS_BUS_DEVICE(&a->intc[0]), 0,
                     sc->memmap[ASPEED_DEV_INTC]);

     /* INTCIO */
     if (!sysbus_realize(SYS_BUS_DEVICE(&a->intc[1]), errp)) {
         return;
     }

     aspeed_mmio_map(s->memory, SYS_BUS_DEVICE(&a->intc[1]), 0,
                     sc->memmap[ASPEED_DEV_INTCIO]);

     /* irq source orgates -> INTC */
     for (i = 0; i < ASPEED_INTC_GET_CLASS(&a->intc[0])->num_inpins; i++) {
         qdev_connect_gpio_out(DEVICE(&a->intc[0].orgates[i]), 0,
                               qdev_get_gpio_in(DEVICE(&a->intc[0]), i));
     }
     for (i = 0; i < ASPEED_INTC_GET_CLASS(&a->intc[0])->num_outpins; i++) {
         assert(i < ARRAY_SIZE(ast2700_tsp_intcmap));
         sysbus_connect_irq(SYS_BUS_DEVICE(&a->intc[0]), i,
                            qdev_get_gpio_in(DEVICE(&a->armv7m),
                                             ast2700_tsp_intcmap[i].irq));
     }
     /* irq source orgates -> INTC */
     for (i = 0; i < ASPEED_INTC_GET_CLASS(&a->intc[1])->num_inpins; i++) {
         qdev_connect_gpio_out(DEVICE(&a->intc[1].orgates[i]), 0,
                               qdev_get_gpio_in(DEVICE(&a->intc[1]), i));
     }
     /* INTCIO -> INTC */
     for (i = 0; i < ASPEED_INTC_GET_CLASS(&a->intc[1])->num_outpins; i++) {
         sysbus_connect_irq(SYS_BUS_DEVICE(&a->intc[1]), i,
                         qdev_get_gpio_in(DEVICE(&a->intc[0].orgates[0]), i));
     }

     /* UART */
     memory_region_init_alias(&s->uart_alias, OBJECT(s), "uart.alias",
                              &s->uart->serial.io, 0,
                              memory_region_size(&s->uart->serial.io));
     memory_region_add_subregion(s->memory, sc->memmap[s->uart_dev],
                                 &s->uart_alias);
     /*
      * Redirect the UART interrupt to the NVIC, replacing the default routing
      * to the PSP's GIC.
      */
     sysbus_connect_irq(SYS_BUS_DEVICE(s->uart), 0,
                        aspeed_soc_ast27x0tsp_get_irq(s, s->uart_dev));

     aspeed_mmio_map_unimplemented(s->memory, SYS_BUS_DEVICE(&s->timerctrl),
                                   "aspeed.timerctrl",
                                   sc->memmap[ASPEED_DEV_TIMER1], 0x200);
     aspeed_mmio_map_unimplemented(s->memory, SYS_BUS_DEVICE(&a->ipc[0]),
                                   "aspeed.ipc0",
                                   sc->memmap[ASPEED_DEV_IPC0], 0x1000);
     aspeed_mmio_map_unimplemented(s->memory, SYS_BUS_DEVICE(&a->ipc[1]),
                                   "aspeed.ipc1",
                                   sc->memmap[ASPEED_DEV_IPC1], 0x1000);
     aspeed_mmio_map_unimplemented(s->memory, SYS_BUS_DEVICE(&a->scuio),
                                   "aspeed.scuio",
                                   sc->memmap[ASPEED_DEV_SCUIO], 0x1000);
 }

 static void aspeed_soc_ast27x0tsp_class_init(ObjectClass *klass,
                                              const void *data)
 {
     static const char * const valid_cpu_types[] = {
         ARM_CPU_TYPE_NAME("cortex-m4"), /* TODO cortex-m4f */
         NULL
     };
     DeviceClass *dc = DEVICE_CLASS(klass);
     AspeedCoprocessorClass *sc = ASPEED_COPROCESSOR_CLASS(dc);

     /* Reason: The Aspeed Coprocessor can only be instantiated from a board */
     dc->user_creatable = false;
     dc->realize = aspeed_soc_ast27x0tsp_realize;

     sc->valid_cpu_types = valid_cpu_types;
     sc->irqmap = aspeed_soc_ast27x0tsp_irqmap;
     sc->memmap = aspeed_soc_ast27x0tsp_memmap;
 }

 static const TypeInfo aspeed_soc_ast27x0tsp_types[] = {
     {
         .name           = TYPE_ASPEED27X0TSP_COPROCESSOR,
         .parent         = TYPE_ASPEED_COPROCESSOR,
         .instance_size  = sizeof(Aspeed27x0CoprocessorState),
         .instance_init  = aspeed_soc_ast27x0tsp_init,
         .class_init     = aspeed_soc_ast27x0tsp_class_init,
     },
 };

 DEFINE_TYPES(aspeed_soc_ast27x0tsp_types)
	/*
	* ASPEED Ast27x0 TSP Coprocessor
	*
	* Copyright (C) 2025 ASPEED Technology Inc.
	*
	* This code is licensed under the GPL version 2 or later. See
	* the COPYING file in the top-level directory.
	*
	* SPDX-License-Identifier: GPL-2.0-or-later
	*/

	#include "qemu/osdep.h"
	#include "qapi/error.h"
	#include "hw/qdev-clock.h"
	#include "hw/misc/unimp.h"
	#include "hw/arm/aspeed_soc.h"
	#include "hw/arm/aspeed_coprocessor.h"

	#define AST2700_TSP_SDRAM_SIZE (512 * MiB)

	static const hwaddr aspeed_soc_ast27x0tsp_memmap[] = {
	[ASPEED_DEV_SDRAM] = 0x00000000,
	[ASPEED_DEV_SRAM] = 0x70000000,
	[ASPEED_DEV_INTC] = 0x72100000,
	[ASPEED_DEV_SCU] = 0x72C02000,
	[ASPEED_DEV_SCUIO] = 0x74C02000,
	[ASPEED_DEV_UART0] = 0x74C33000,
	[ASPEED_DEV_UART1] = 0x74C33100,
	[ASPEED_DEV_UART2] = 0x74C33200,
	[ASPEED_DEV_UART3] = 0x74C33300,
	[ASPEED_DEV_UART4] = 0x72C1A000,
	[ASPEED_DEV_INTCIO] = 0x74C18000,
	[ASPEED_DEV_IPC0] = 0x72C1C000,
	[ASPEED_DEV_IPC1] = 0x74C39000,
	[ASPEED_DEV_UART5] = 0x74C33400,
	[ASPEED_DEV_UART6] = 0x74C33500,
	[ASPEED_DEV_UART7] = 0x74C33600,
	[ASPEED_DEV_UART8] = 0x74C33700,
	[ASPEED_DEV_UART9] = 0x74C33800,
	[ASPEED_DEV_UART10] = 0x74C33900,
	[ASPEED_DEV_UART11] = 0x74C33A00,
	[ASPEED_DEV_UART12] = 0x74C33B00,
	[ASPEED_DEV_TIMER1] = 0x72C10000,
	};

	static const int aspeed_soc_ast27x0tsp_irqmap[] = {
	[ASPEED_DEV_SCU] = 12,
	[ASPEED_DEV_UART0] = 164,
	[ASPEED_DEV_UART1] = 164,
	[ASPEED_DEV_UART2] = 164,
	[ASPEED_DEV_UART3] = 164,
	[ASPEED_DEV_UART4] = 8,
	[ASPEED_DEV_UART5] = 164,
	[ASPEED_DEV_UART6] = 164,
	[ASPEED_DEV_UART7] = 164,
	[ASPEED_DEV_UART8] = 164,
	[ASPEED_DEV_UART9] = 164,
	[ASPEED_DEV_UART10] = 164,
	[ASPEED_DEV_UART11] = 164,
	[ASPEED_DEV_UART12] = 164,
	[ASPEED_DEV_TIMER1] = 16,
	};

	/* TSPINT 164 */
	static const int ast2700_tsp132_tsp164_intcmap[] = {
	[ASPEED_DEV_UART0] = 7,
	[ASPEED_DEV_UART1] = 8,
	[ASPEED_DEV_UART2] = 9,
	[ASPEED_DEV_UART3] = 10,
	[ASPEED_DEV_UART5] = 11,
	[ASPEED_DEV_UART6] = 12,
	[ASPEED_DEV_UART7] = 13,
	[ASPEED_DEV_UART8] = 14,
	[ASPEED_DEV_UART9] = 15,
	[ASPEED_DEV_UART10] = 16,
	[ASPEED_DEV_UART11] = 17,
	[ASPEED_DEV_UART12] = 18,
	};

	struct nvic_intc_irq_info {
	int irq;
	int intc_idx;
	int orgate_idx;
	const int *ptr;
	};

	static struct nvic_intc_irq_info ast2700_tsp_intcmap[] = {
	{160, 1, 0, NULL},
	{161, 1, 1, NULL},
	{162, 1, 2, NULL},
	{163, 1, 3, NULL},
	{164, 1, 4, ast2700_tsp132_tsp164_intcmap},
	{165, 1, 5, NULL},
	{166, 1, 6, NULL},
	{167, 1, 7, NULL},
	{168, 1, 8, NULL},
	{169, 1, 9, NULL},
	{128, 0, 1, NULL},
	{129, 0, 2, NULL},
	{130, 0, 3, NULL},
	{131, 0, 4, NULL},
	{132, 0, 5, ast2700_tsp132_tsp164_intcmap},
	{133, 0, 6, NULL},
	{134, 0, 7, NULL},
	{135, 0, 8, NULL},
	{136, 0, 9, NULL},
	};

	static qemu_irq aspeed_soc_ast27x0tsp_get_irq(AspeedCoprocessorState *s,
	int dev)
	{
	Aspeed27x0CoprocessorState *a = ASPEED27X0TSP_COPROCESSOR(s);
	AspeedCoprocessorClass *sc = ASPEED_COPROCESSOR_GET_CLASS(s);

	int or_idx;
	int idx;
	int i;

	for (i = 0; i < ARRAY_SIZE(ast2700_tsp_intcmap); i++) {
	if (sc->irqmap[dev] == ast2700_tsp_intcmap[i].irq) {
	assert(ast2700_tsp_intcmap[i].ptr);
	or_idx = ast2700_tsp_intcmap[i].orgate_idx;
	idx = ast2700_tsp_intcmap[i].intc_idx;
	return qdev_get_gpio_in(DEVICE(&a->intc[idx].orgates[or_idx]),
	ast2700_tsp_intcmap[i].ptr[dev]);
	}
	}

	return qdev_get_gpio_in(DEVICE(&a->armv7m), sc->irqmap[dev]);
	}

	static void aspeed_soc_ast27x0tsp_init(Object *obj)
	{
	Aspeed27x0CoprocessorState *a = ASPEED27X0TSP_COPROCESSOR(obj);
	AspeedCoprocessorState *s = ASPEED_COPROCESSOR(obj);

	object_initialize_child(obj, "armv7m", &a->armv7m, TYPE_ARMV7M);
	s->sysclk = qdev_init_clock_in(DEVICE(s), "sysclk", NULL, NULL, 0);

	object_initialize_child(obj, "intc0", &a->intc[0],
	TYPE_ASPEED_2700TSP_INTC);
	object_initialize_child(obj, "intc1", &a->intc[1],
	TYPE_ASPEED_2700TSP_INTCIO);

	object_initialize_child(obj, "timerctrl", &s->timerctrl,
	TYPE_UNIMPLEMENTED_DEVICE);
	object_initialize_child(obj, "ipc0", &a->ipc[0],
	TYPE_UNIMPLEMENTED_DEVICE);
	object_initialize_child(obj, "ipc1", &a->ipc[1],
	TYPE_UNIMPLEMENTED_DEVICE);
	object_initialize_child(obj, "scuio", &a->scuio,
	TYPE_UNIMPLEMENTED_DEVICE);
	}

	static void aspeed_soc_ast27x0tsp_realize(DeviceState dev_soc, Error *errp)
	{
	Aspeed27x0CoprocessorState *a = ASPEED27X0TSP_COPROCESSOR(dev_soc);
	AspeedCoprocessorState *s = ASPEED_COPROCESSOR(dev_soc);
	AspeedCoprocessorClass *sc = ASPEED_COPROCESSOR_GET_CLASS(s);
	DeviceState *armv7m;
	g_autofree char *sdram_name = NULL;
	int i;

	if (!clock_has_source(s->sysclk)) {
	error_setg(errp, "sysclk clock must be wired up by the board code");
	return;
	}

	/* AST27X0 TSP Core */
	armv7m = DEVICE(&a->armv7m);
	qdev_prop_set_uint32(armv7m, "num-irq", 256);
	qdev_prop_set_string(armv7m, "cpu-type",
	aspeed_soc_cpu_type(sc->valid_cpu_types));
	qdev_connect_clock_in(armv7m, "cpuclk", s->sysclk);
	object_property_set_link(OBJECT(&a->armv7m), "memory",
	OBJECT(s->memory), &error_abort);
	sysbus_realize(SYS_BUS_DEVICE(&a->armv7m), &error_abort);

	/* SDRAM */
	sdram_name = g_strdup_printf("aspeed.sdram.%d",
	CPU(a->armv7m.cpu)->cpu_index);
	if (!memory_region_init_ram(&s->sdram, OBJECT(s), sdram_name,
	AST2700_TSP_SDRAM_SIZE, errp)) {
	return;
	}
	memory_region_add_subregion(s->memory,
	sc->memmap[ASPEED_DEV_SDRAM],
	&s->sdram);

	/* SRAM */
	memory_region_init_alias(&s->sram_alias, OBJECT(s), "sram.alias",
	s->sram, 0, memory_region_size(s->sram));
	memory_region_add_subregion(s->memory, sc->memmap[ASPEED_DEV_SRAM],
	&s->sram_alias);

	/* SCU */
	memory_region_init_alias(&s->scu_alias, OBJECT(s), "scu.alias",
	&s->scu->iomem, 0,
	memory_region_size(&s->scu->iomem));
	memory_region_add_subregion(s->memory, sc->memmap[ASPEED_DEV_SCU],
	&s->scu_alias);

	/* INTC */
	if (!sysbus_realize(SYS_BUS_DEVICE(&a->intc[0]), errp)) {
	return;
	}

	aspeed_mmio_map(s->memory, SYS_BUS_DEVICE(&a->intc[0]), 0,
	sc->memmap[ASPEED_DEV_INTC]);

	/* INTCIO */
	if (!sysbus_realize(SYS_BUS_DEVICE(&a->intc[1]), errp)) {
	return;
	}

	aspeed_mmio_map(s->memory, SYS_BUS_DEVICE(&a->intc[1]), 0,
	sc->memmap[ASPEED_DEV_INTCIO]);

	/* irq source orgates -> INTC */
	for (i = 0; i < ASPEED_INTC_GET_CLASS(&a->intc[0])->num_inpins; i++) {
	qdev_connect_gpio_out(DEVICE(&a->intc[0].orgates[i]), 0,
	qdev_get_gpio_in(DEVICE(&a->intc[0]), i));
	}
	for (i = 0; i < ASPEED_INTC_GET_CLASS(&a->intc[0])->num_outpins; i++) {
	assert(i < ARRAY_SIZE(ast2700_tsp_intcmap));
	sysbus_connect_irq(SYS_BUS_DEVICE(&a->intc[0]), i,
	qdev_get_gpio_in(DEVICE(&a->armv7m),
	ast2700_tsp_intcmap[i].irq));
	}
	/* irq source orgates -> INTC */
	for (i = 0; i < ASPEED_INTC_GET_CLASS(&a->intc[1])->num_inpins; i++) {
	qdev_connect_gpio_out(DEVICE(&a->intc[1].orgates[i]), 0,
	qdev_get_gpio_in(DEVICE(&a->intc[1]), i));
	}
	/* INTCIO -> INTC */
	for (i = 0; i < ASPEED_INTC_GET_CLASS(&a->intc[1])->num_outpins; i++) {
	sysbus_connect_irq(SYS_BUS_DEVICE(&a->intc[1]), i,
	qdev_get_gpio_in(DEVICE(&a->intc[0].orgates[0]), i));
	}

	/* UART */
	memory_region_init_alias(&s->uart_alias, OBJECT(s), "uart.alias",
	&s->uart->serial.io, 0,
	memory_region_size(&s->uart->serial.io));
	memory_region_add_subregion(s->memory, sc->memmap[s->uart_dev],
	&s->uart_alias);
	/*
	* Redirect the UART interrupt to the NVIC, replacing the default routing
	* to the PSP's GIC.
	*/
	sysbus_connect_irq(SYS_BUS_DEVICE(s->uart), 0,
	aspeed_soc_ast27x0tsp_get_irq(s, s->uart_dev));

	aspeed_mmio_map_unimplemented(s->memory, SYS_BUS_DEVICE(&s->timerctrl),
	"aspeed.timerctrl",
	sc->memmap[ASPEED_DEV_TIMER1], 0x200);
	aspeed_mmio_map_unimplemented(s->memory, SYS_BUS_DEVICE(&a->ipc[0]),
	"aspeed.ipc0",
	sc->memmap[ASPEED_DEV_IPC0], 0x1000);
	aspeed_mmio_map_unimplemented(s->memory, SYS_BUS_DEVICE(&a->ipc[1]),
	"aspeed.ipc1",
	sc->memmap[ASPEED_DEV_IPC1], 0x1000);
	aspeed_mmio_map_unimplemented(s->memory, SYS_BUS_DEVICE(&a->scuio),
	"aspeed.scuio",
	sc->memmap[ASPEED_DEV_SCUIO], 0x1000);
	}

	static void aspeed_soc_ast27x0tsp_class_init(ObjectClass *klass,
	const void *data)
	{
	static const char * const valid_cpu_types[] = {
	ARM_CPU_TYPE_NAME("cortex-m4"), /* TODO cortex-m4f */
	NULL
	};
	DeviceClass *dc = DEVICE_CLASS(klass);
	AspeedCoprocessorClass *sc = ASPEED_COPROCESSOR_CLASS(dc);

	/* Reason: The Aspeed Coprocessor can only be instantiated from a board */
	dc->user_creatable = false;
	dc->realize = aspeed_soc_ast27x0tsp_realize;

	sc->valid_cpu_types = valid_cpu_types;
	sc->irqmap = aspeed_soc_ast27x0tsp_irqmap;
	sc->memmap = aspeed_soc_ast27x0tsp_memmap;
	}

	static const TypeInfo aspeed_soc_ast27x0tsp_types[] = {
	{
	.name = TYPE_ASPEED27X0TSP_COPROCESSOR,
	.parent = TYPE_ASPEED_COPROCESSOR,
	.instance_size = sizeof(Aspeed27x0CoprocessorState),
	.instance_init = aspeed_soc_ast27x0tsp_init,
	.class_init = aspeed_soc_ast27x0tsp_class_init,
	},
	};

	DEFINE_TYPES(aspeed_soc_ast27x0tsp_types)