/* * Allwinner H3 System on Chip emulation * * Copyright (C) 2019 Niek Linnenbank * * 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. * * You should have received a copy of the GNU General Public License * along with this program. If not, see . */ #include "qemu/osdep.h" #include "exec/address-spaces.h" #include "qapi/error.h" #include "qemu/error-report.h" #include "qemu/module.h" #include "qemu/units.h" #include "hw/qdev-core.h" #include "cpu.h" #include "hw/sysbus.h" #include "hw/char/serial.h" #include "hw/misc/unimp.h" #include "sysemu/sysemu.h" #include "hw/arm/allwinner-h3.h" /* Memory map */ const hwaddr allwinner_h3_memmap[] = { [AW_H3_SRAM_A1] = 0x00000000, [AW_H3_SRAM_A2] = 0x00044000, [AW_H3_SRAM_C] = 0x00010000, [AW_H3_CCU] = 0x01c20000, [AW_H3_PIT] = 0x01c20c00, [AW_H3_UART0] = 0x01c28000, [AW_H3_UART1] = 0x01c28400, [AW_H3_UART2] = 0x01c28800, [AW_H3_UART3] = 0x01c28c00, [AW_H3_GIC_DIST] = 0x01c81000, [AW_H3_GIC_CPU] = 0x01c82000, [AW_H3_GIC_HYP] = 0x01c84000, [AW_H3_GIC_VCPU] = 0x01c86000, [AW_H3_SDRAM] = 0x40000000 }; /* List of unimplemented devices */ struct AwH3Unimplemented { const char *device_name; hwaddr base; hwaddr size; } unimplemented[] = { { "d-engine", 0x01000000, 4 * MiB }, { "d-inter", 0x01400000, 128 * KiB }, { "syscon", 0x01c00000, 4 * KiB }, { "dma", 0x01c02000, 4 * KiB }, { "nfdc", 0x01c03000, 4 * KiB }, { "ts", 0x01c06000, 4 * KiB }, { "keymem", 0x01c0b000, 4 * KiB }, { "lcd0", 0x01c0c000, 4 * KiB }, { "lcd1", 0x01c0d000, 4 * KiB }, { "ve", 0x01c0e000, 4 * KiB }, { "mmc0", 0x01c0f000, 4 * KiB }, { "mmc1", 0x01c10000, 4 * KiB }, { "mmc2", 0x01c11000, 4 * KiB }, { "sid", 0x01c14000, 1 * KiB }, { "crypto", 0x01c15000, 4 * KiB }, { "msgbox", 0x01c17000, 4 * KiB }, { "spinlock", 0x01c18000, 4 * KiB }, { "usb0-otg", 0x01c19000, 4 * KiB }, { "usb0-phy", 0x01c1a000, 4 * KiB }, { "usb1-phy", 0x01c1b000, 4 * KiB }, { "usb2-phy", 0x01c1c000, 4 * KiB }, { "usb3-phy", 0x01c1d000, 4 * KiB }, { "smc", 0x01c1e000, 4 * KiB }, { "pio", 0x01c20800, 1 * KiB }, { "owa", 0x01c21000, 1 * KiB }, { "pwm", 0x01c21400, 1 * KiB }, { "keyadc", 0x01c21800, 1 * KiB }, { "pcm0", 0x01c22000, 1 * KiB }, { "pcm1", 0x01c22400, 1 * KiB }, { "pcm2", 0x01c22800, 1 * KiB }, { "audio", 0x01c22c00, 2 * KiB }, { "smta", 0x01c23400, 1 * KiB }, { "ths", 0x01c25000, 1 * KiB }, { "uart0", 0x01c28000, 1 * KiB }, { "uart1", 0x01c28400, 1 * KiB }, { "uart2", 0x01c28800, 1 * KiB }, { "uart3", 0x01c28c00, 1 * KiB }, { "twi0", 0x01c2ac00, 1 * KiB }, { "twi1", 0x01c2b000, 1 * KiB }, { "twi2", 0x01c2b400, 1 * KiB }, { "scr", 0x01c2c400, 1 * KiB }, { "emac", 0x01c30000, 64 * KiB }, { "gpu", 0x01c40000, 64 * KiB }, { "hstmr", 0x01c60000, 4 * KiB }, { "dramcom", 0x01c62000, 4 * KiB }, { "dramctl0", 0x01c63000, 4 * KiB }, { "dramphy0", 0x01c65000, 4 * KiB }, { "spi0", 0x01c68000, 4 * KiB }, { "spi1", 0x01c69000, 4 * KiB }, { "csi", 0x01cb0000, 320 * KiB }, { "tve", 0x01e00000, 64 * KiB }, { "hdmi", 0x01ee0000, 128 * KiB }, { "rtc", 0x01f00000, 1 * KiB }, { "r_timer", 0x01f00800, 1 * KiB }, { "r_intc", 0x01f00c00, 1 * KiB }, { "r_wdog", 0x01f01000, 1 * KiB }, { "r_prcm", 0x01f01400, 1 * KiB }, { "r_twd", 0x01f01800, 1 * KiB }, { "r_cpucfg", 0x01f01c00, 1 * KiB }, { "r_cir-rx", 0x01f02000, 1 * KiB }, { "r_twi", 0x01f02400, 1 * KiB }, { "r_uart", 0x01f02800, 1 * KiB }, { "r_pio", 0x01f02c00, 1 * KiB }, { "r_pwm", 0x01f03800, 1 * KiB }, { "core-dbg", 0x3f500000, 128 * KiB }, { "tsgen-ro", 0x3f506000, 4 * KiB }, { "tsgen-ctl", 0x3f507000, 4 * KiB }, { "ddr-mem", 0x40000000, 2 * GiB }, { "n-brom", 0xffff0000, 32 * KiB }, { "s-brom", 0xffff0000, 64 * KiB } }; /* Per Processor Interrupts */ enum { AW_H3_GIC_PPI_MAINT = 9, AW_H3_GIC_PPI_HYPTIMER = 10, AW_H3_GIC_PPI_VIRTTIMER = 11, AW_H3_GIC_PPI_SECTIMER = 13, AW_H3_GIC_PPI_PHYSTIMER = 14 }; /* Shared Processor Interrupts */ enum { AW_H3_GIC_SPI_UART0 = 0, AW_H3_GIC_SPI_UART1 = 1, AW_H3_GIC_SPI_UART2 = 2, AW_H3_GIC_SPI_UART3 = 3, AW_H3_GIC_SPI_TIMER0 = 18, AW_H3_GIC_SPI_TIMER1 = 19, }; /* Allwinner H3 general constants */ enum { AW_H3_GIC_NUM_SPI = 128 }; static void allwinner_h3_init(Object *obj) { AwH3State *s = AW_H3(obj); s->memmap = allwinner_h3_memmap; for (int i = 0; i < AW_H3_NUM_CPUS; i++) { object_initialize_child(obj, "cpu[*]", &s->cpus[i], sizeof(s->cpus[i]), ARM_CPU_TYPE_NAME("cortex-a7"), &error_abort, NULL); } sysbus_init_child_obj(obj, "gic", &s->gic, sizeof(s->gic), TYPE_ARM_GIC); sysbus_init_child_obj(obj, "timer", &s->timer, sizeof(s->timer), TYPE_AW_A10_PIT); object_property_add_alias(obj, "clk0-freq", OBJECT(&s->timer), "clk0-freq", &error_abort); object_property_add_alias(obj, "clk1-freq", OBJECT(&s->timer), "clk1-freq", &error_abort); sysbus_init_child_obj(obj, "ccu", &s->ccu, sizeof(s->ccu), TYPE_AW_H3_CCU); } static void allwinner_h3_realize(DeviceState *dev, Error **errp) { AwH3State *s = AW_H3(dev); unsigned i; /* CPUs */ for (i = 0; i < AW_H3_NUM_CPUS; i++) { /* Provide Power State Coordination Interface */ qdev_prop_set_int32(DEVICE(&s->cpus[i]), "psci-conduit", QEMU_PSCI_CONDUIT_HVC); /* Disable secondary CPUs */ qdev_prop_set_bit(DEVICE(&s->cpus[i]), "start-powered-off", i > 0); /* All exception levels required */ qdev_prop_set_bit(DEVICE(&s->cpus[i]), "has_el3", true); qdev_prop_set_bit(DEVICE(&s->cpus[i]), "has_el2", true); /* Mark realized */ qdev_init_nofail(DEVICE(&s->cpus[i])); } /* Generic Interrupt Controller */ qdev_prop_set_uint32(DEVICE(&s->gic), "num-irq", AW_H3_GIC_NUM_SPI + GIC_INTERNAL); qdev_prop_set_uint32(DEVICE(&s->gic), "revision", 2); qdev_prop_set_uint32(DEVICE(&s->gic), "num-cpu", AW_H3_NUM_CPUS); qdev_prop_set_bit(DEVICE(&s->gic), "has-security-extensions", false); qdev_prop_set_bit(DEVICE(&s->gic), "has-virtualization-extensions", true); qdev_init_nofail(DEVICE(&s->gic)); sysbus_mmio_map(SYS_BUS_DEVICE(&s->gic), 0, s->memmap[AW_H3_GIC_DIST]); sysbus_mmio_map(SYS_BUS_DEVICE(&s->gic), 1, s->memmap[AW_H3_GIC_CPU]); sysbus_mmio_map(SYS_BUS_DEVICE(&s->gic), 2, s->memmap[AW_H3_GIC_HYP]); sysbus_mmio_map(SYS_BUS_DEVICE(&s->gic), 3, s->memmap[AW_H3_GIC_VCPU]); /* * Wire the outputs from each CPU's generic timer and the GICv3 * maintenance interrupt signal to the appropriate GIC PPI inputs, * and the GIC's IRQ/FIQ/VIRQ/VFIQ interrupt outputs to the CPU's inputs. */ for (i = 0; i < AW_H3_NUM_CPUS; i++) { DeviceState *cpudev = DEVICE(&s->cpus[i]); int ppibase = AW_H3_GIC_NUM_SPI + i * GIC_INTERNAL + GIC_NR_SGIS; int irq; /* * Mapping from the output timer irq lines from the CPU to the * GIC PPI inputs used for this board. */ const int timer_irq[] = { [GTIMER_PHYS] = AW_H3_GIC_PPI_PHYSTIMER, [GTIMER_VIRT] = AW_H3_GIC_PPI_VIRTTIMER, [GTIMER_HYP] = AW_H3_GIC_PPI_HYPTIMER, [GTIMER_SEC] = AW_H3_GIC_PPI_SECTIMER, }; /* Connect CPU timer outputs to GIC PPI inputs */ for (irq = 0; irq < ARRAY_SIZE(timer_irq); irq++) { qdev_connect_gpio_out(cpudev, irq, qdev_get_gpio_in(DEVICE(&s->gic), ppibase + timer_irq[irq])); } /* Connect GIC outputs to CPU interrupt inputs */ sysbus_connect_irq(SYS_BUS_DEVICE(&s->gic), i, qdev_get_gpio_in(cpudev, ARM_CPU_IRQ)); sysbus_connect_irq(SYS_BUS_DEVICE(&s->gic), i + AW_H3_NUM_CPUS, qdev_get_gpio_in(cpudev, ARM_CPU_FIQ)); sysbus_connect_irq(SYS_BUS_DEVICE(&s->gic), i + (2 * AW_H3_NUM_CPUS), qdev_get_gpio_in(cpudev, ARM_CPU_VIRQ)); sysbus_connect_irq(SYS_BUS_DEVICE(&s->gic), i + (3 * AW_H3_NUM_CPUS), qdev_get_gpio_in(cpudev, ARM_CPU_VFIQ)); /* GIC maintenance signal */ sysbus_connect_irq(SYS_BUS_DEVICE(&s->gic), i + (4 * AW_H3_NUM_CPUS), qdev_get_gpio_in(DEVICE(&s->gic), ppibase + AW_H3_GIC_PPI_MAINT)); } /* Timer */ qdev_init_nofail(DEVICE(&s->timer)); sysbus_mmio_map(SYS_BUS_DEVICE(&s->timer), 0, s->memmap[AW_H3_PIT]); sysbus_connect_irq(SYS_BUS_DEVICE(&s->timer), 0, qdev_get_gpio_in(DEVICE(&s->gic), AW_H3_GIC_SPI_TIMER0)); sysbus_connect_irq(SYS_BUS_DEVICE(&s->timer), 1, qdev_get_gpio_in(DEVICE(&s->gic), AW_H3_GIC_SPI_TIMER1)); /* SRAM */ memory_region_init_ram(&s->sram_a1, OBJECT(dev), "sram A1", 64 * KiB, &error_abort); memory_region_init_ram(&s->sram_a2, OBJECT(dev), "sram A2", 32 * KiB, &error_abort); memory_region_init_ram(&s->sram_c, OBJECT(dev), "sram C", 44 * KiB, &error_abort); memory_region_add_subregion(get_system_memory(), s->memmap[AW_H3_SRAM_A1], &s->sram_a1); memory_region_add_subregion(get_system_memory(), s->memmap[AW_H3_SRAM_A2], &s->sram_a2); memory_region_add_subregion(get_system_memory(), s->memmap[AW_H3_SRAM_C], &s->sram_c); /* Clock Control Unit */ qdev_init_nofail(DEVICE(&s->ccu)); sysbus_mmio_map(SYS_BUS_DEVICE(&s->ccu), 0, s->memmap[AW_H3_CCU]); /* UART0. For future clocktree API: All UARTS are connected to APB2_CLK. */ serial_mm_init(get_system_memory(), s->memmap[AW_H3_UART0], 2, qdev_get_gpio_in(DEVICE(&s->gic), AW_H3_GIC_SPI_UART0), 115200, serial_hd(0), DEVICE_NATIVE_ENDIAN); /* UART1 */ serial_mm_init(get_system_memory(), s->memmap[AW_H3_UART1], 2, qdev_get_gpio_in(DEVICE(&s->gic), AW_H3_GIC_SPI_UART1), 115200, serial_hd(1), DEVICE_NATIVE_ENDIAN); /* UART2 */ serial_mm_init(get_system_memory(), s->memmap[AW_H3_UART2], 2, qdev_get_gpio_in(DEVICE(&s->gic), AW_H3_GIC_SPI_UART2), 115200, serial_hd(2), DEVICE_NATIVE_ENDIAN); /* UART3 */ serial_mm_init(get_system_memory(), s->memmap[AW_H3_UART3], 2, qdev_get_gpio_in(DEVICE(&s->gic), AW_H3_GIC_SPI_UART3), 115200, serial_hd(3), DEVICE_NATIVE_ENDIAN); /* Unimplemented devices */ for (i = 0; i < ARRAY_SIZE(unimplemented); i++) { create_unimplemented_device(unimplemented[i].device_name, unimplemented[i].base, unimplemented[i].size); } } static void allwinner_h3_class_init(ObjectClass *oc, void *data) { DeviceClass *dc = DEVICE_CLASS(oc); dc->realize = allwinner_h3_realize; /* Reason: uses serial_hd() in realize function */ dc->user_creatable = false; } static const TypeInfo allwinner_h3_type_info = { .name = TYPE_AW_H3, .parent = TYPE_DEVICE, .instance_size = sizeof(AwH3State), .instance_init = allwinner_h3_init, .class_init = allwinner_h3_class_init, }; static void allwinner_h3_register_types(void) { type_register_static(&allwinner_h3_type_info); } type_init(allwinner_h3_register_types)