/* * Samsung exynos4210 SoC emulation * * Copyright (c) 2011 Samsung Electronics Co., Ltd. All rights reserved. * Maksim Kozlov * Evgeny Voevodin * Igor Mitsyanko * * 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 "qapi/error.h" #include "qemu-common.h" #include "qemu/log.h" #include "cpu.h" #include "hw/cpu/a9mpcore.h" #include "hw/boards.h" #include "sysemu/sysemu.h" #include "hw/sysbus.h" #include "hw/arm/arm.h" #include "hw/loader.h" #include "hw/arm/exynos4210.h" #include "hw/sd/sdhci.h" #include "hw/usb/hcd-ehci.h" #define EXYNOS4210_CHIPID_ADDR 0x10000000 /* PWM */ #define EXYNOS4210_PWM_BASE_ADDR 0x139D0000 /* RTC */ #define EXYNOS4210_RTC_BASE_ADDR 0x10070000 /* MCT */ #define EXYNOS4210_MCT_BASE_ADDR 0x10050000 /* I2C */ #define EXYNOS4210_I2C_SHIFT 0x00010000 #define EXYNOS4210_I2C_BASE_ADDR 0x13860000 /* Interrupt Group of External Interrupt Combiner for I2C */ #define EXYNOS4210_I2C_INTG 27 #define EXYNOS4210_HDMI_INTG 16 /* UART's definitions */ #define EXYNOS4210_UART0_BASE_ADDR 0x13800000 #define EXYNOS4210_UART1_BASE_ADDR 0x13810000 #define EXYNOS4210_UART2_BASE_ADDR 0x13820000 #define EXYNOS4210_UART3_BASE_ADDR 0x13830000 #define EXYNOS4210_UART0_FIFO_SIZE 256 #define EXYNOS4210_UART1_FIFO_SIZE 64 #define EXYNOS4210_UART2_FIFO_SIZE 16 #define EXYNOS4210_UART3_FIFO_SIZE 16 /* Interrupt Group of External Interrupt Combiner for UART */ #define EXYNOS4210_UART_INT_GRP 26 /* External GIC */ #define EXYNOS4210_EXT_GIC_CPU_BASE_ADDR 0x10480000 #define EXYNOS4210_EXT_GIC_DIST_BASE_ADDR 0x10490000 /* Combiner */ #define EXYNOS4210_EXT_COMBINER_BASE_ADDR 0x10440000 #define EXYNOS4210_INT_COMBINER_BASE_ADDR 0x10448000 /* SD/MMC host controllers */ #define EXYNOS4210_SDHCI_CAPABILITIES 0x05E80080 #define EXYNOS4210_SDHCI_BASE_ADDR 0x12510000 #define EXYNOS4210_SDHCI_ADDR(n) (EXYNOS4210_SDHCI_BASE_ADDR + \ 0x00010000 * (n)) #define EXYNOS4210_SDHCI_NUMBER 4 /* PMU SFR base address */ #define EXYNOS4210_PMU_BASE_ADDR 0x10020000 /* Clock controller SFR base address */ #define EXYNOS4210_CLK_BASE_ADDR 0x10030000 /* PRNG/HASH SFR base address */ #define EXYNOS4210_RNG_BASE_ADDR 0x10830400 /* Display controllers (FIMD) */ #define EXYNOS4210_FIMD0_BASE_ADDR 0x11C00000 /* EHCI */ #define EXYNOS4210_EHCI_BASE_ADDR 0x12580000 static uint8_t chipid_and_omr[] = { 0x11, 0x02, 0x21, 0x43, 0x09, 0x00, 0x00, 0x00 }; static uint64_t exynos4210_chipid_and_omr_read(void *opaque, hwaddr offset, unsigned size) { assert(offset < sizeof(chipid_and_omr)); return chipid_and_omr[offset]; } static void exynos4210_chipid_and_omr_write(void *opaque, hwaddr offset, uint64_t value, unsigned size) { return; } static const MemoryRegionOps exynos4210_chipid_and_omr_ops = { .read = exynos4210_chipid_and_omr_read, .write = exynos4210_chipid_and_omr_write, .endianness = DEVICE_NATIVE_ENDIAN, .impl = { .max_access_size = 1, } }; void exynos4210_write_secondary(ARMCPU *cpu, const struct arm_boot_info *info) { int n; uint32_t smpboot[] = { 0xe59f3034, /* ldr r3, External gic_cpu_if */ 0xe59f2034, /* ldr r2, Internal gic_cpu_if */ 0xe59f0034, /* ldr r0, startaddr */ 0xe3a01001, /* mov r1, #1 */ 0xe5821000, /* str r1, [r2] */ 0xe5831000, /* str r1, [r3] */ 0xe3a010ff, /* mov r1, #0xff */ 0xe5821004, /* str r1, [r2, #4] */ 0xe5831004, /* str r1, [r3, #4] */ 0xf57ff04f, /* dsb */ 0xe320f003, /* wfi */ 0xe5901000, /* ldr r1, [r0] */ 0xe1110001, /* tst r1, r1 */ 0x0afffffb, /* beq */ 0xe12fff11, /* bx r1 */ EXYNOS4210_EXT_GIC_CPU_BASE_ADDR, 0, /* gic_cpu_if: base address of Internal GIC CPU interface */ 0 /* bootreg: Boot register address is held here */ }; smpboot[ARRAY_SIZE(smpboot) - 1] = info->smp_bootreg_addr; smpboot[ARRAY_SIZE(smpboot) - 2] = info->gic_cpu_if_addr; for (n = 0; n < ARRAY_SIZE(smpboot); n++) { smpboot[n] = tswap32(smpboot[n]); } rom_add_blob_fixed("smpboot", smpboot, sizeof(smpboot), info->smp_loader_start); } static uint64_t exynos4210_calc_affinity(int cpu) { uint64_t mp_affinity; /* Exynos4210 has 0x9 as cluster ID */ mp_affinity = (0x9 << ARM_AFF1_SHIFT) | cpu; return mp_affinity; } Exynos4210State *exynos4210_init(MemoryRegion *system_mem) { Exynos4210State *s = g_new(Exynos4210State, 1); qemu_irq gate_irq[EXYNOS4210_NCPUS][EXYNOS4210_IRQ_GATE_NINPUTS]; SysBusDevice *busdev; DeviceState *dev; int i, n; for (n = 0; n < EXYNOS4210_NCPUS; n++) { Object *cpuobj = object_new(ARM_CPU_TYPE_NAME("cortex-a9")); /* By default A9 CPUs have EL3 enabled. This board does not currently * support EL3 so the CPU EL3 property is disabled before realization. */ if (object_property_find(cpuobj, "has_el3", NULL)) { object_property_set_bool(cpuobj, false, "has_el3", &error_fatal); } s->cpu[n] = ARM_CPU(cpuobj); object_property_set_int(cpuobj, exynos4210_calc_affinity(n), "mp-affinity", &error_abort); object_property_set_int(cpuobj, EXYNOS4210_SMP_PRIVATE_BASE_ADDR, "reset-cbar", &error_abort); object_property_set_bool(cpuobj, true, "realized", &error_fatal); } /*** IRQs ***/ s->irq_table = exynos4210_init_irq(&s->irqs); /* IRQ Gate */ for (i = 0; i < EXYNOS4210_NCPUS; i++) { dev = qdev_create(NULL, "exynos4210.irq_gate"); qdev_prop_set_uint32(dev, "n_in", EXYNOS4210_IRQ_GATE_NINPUTS); qdev_init_nofail(dev); /* Get IRQ Gate input in gate_irq */ for (n = 0; n < EXYNOS4210_IRQ_GATE_NINPUTS; n++) { gate_irq[i][n] = qdev_get_gpio_in(dev, n); } busdev = SYS_BUS_DEVICE(dev); /* Connect IRQ Gate output to CPU's IRQ line */ sysbus_connect_irq(busdev, 0, qdev_get_gpio_in(DEVICE(s->cpu[i]), ARM_CPU_IRQ)); } /* Private memory region and Internal GIC */ dev = qdev_create(NULL, TYPE_A9MPCORE_PRIV); qdev_prop_set_uint32(dev, "num-cpu", EXYNOS4210_NCPUS); qdev_init_nofail(dev); busdev = SYS_BUS_DEVICE(dev); sysbus_mmio_map(busdev, 0, EXYNOS4210_SMP_PRIVATE_BASE_ADDR); for (n = 0; n < EXYNOS4210_NCPUS; n++) { sysbus_connect_irq(busdev, n, gate_irq[n][0]); } for (n = 0; n < EXYNOS4210_INT_GIC_NIRQ; n++) { s->irqs.int_gic_irq[n] = qdev_get_gpio_in(dev, n); } /* Cache controller */ sysbus_create_simple("l2x0", EXYNOS4210_L2X0_BASE_ADDR, NULL); /* External GIC */ dev = qdev_create(NULL, "exynos4210.gic"); qdev_prop_set_uint32(dev, "num-cpu", EXYNOS4210_NCPUS); qdev_init_nofail(dev); busdev = SYS_BUS_DEVICE(dev); /* Map CPU interface */ sysbus_mmio_map(busdev, 0, EXYNOS4210_EXT_GIC_CPU_BASE_ADDR); /* Map Distributer interface */ sysbus_mmio_map(busdev, 1, EXYNOS4210_EXT_GIC_DIST_BASE_ADDR); for (n = 0; n < EXYNOS4210_NCPUS; n++) { sysbus_connect_irq(busdev, n, gate_irq[n][1]); } for (n = 0; n < EXYNOS4210_EXT_GIC_NIRQ; n++) { s->irqs.ext_gic_irq[n] = qdev_get_gpio_in(dev, n); } /* Internal Interrupt Combiner */ dev = qdev_create(NULL, "exynos4210.combiner"); qdev_init_nofail(dev); busdev = SYS_BUS_DEVICE(dev); for (n = 0; n < EXYNOS4210_MAX_INT_COMBINER_OUT_IRQ; n++) { sysbus_connect_irq(busdev, n, s->irqs.int_gic_irq[n]); } exynos4210_combiner_get_gpioin(&s->irqs, dev, 0); sysbus_mmio_map(busdev, 0, EXYNOS4210_INT_COMBINER_BASE_ADDR); /* External Interrupt Combiner */ dev = qdev_create(NULL, "exynos4210.combiner"); qdev_prop_set_uint32(dev, "external", 1); qdev_init_nofail(dev); busdev = SYS_BUS_DEVICE(dev); for (n = 0; n < EXYNOS4210_MAX_INT_COMBINER_OUT_IRQ; n++) { sysbus_connect_irq(busdev, n, s->irqs.ext_gic_irq[n]); } exynos4210_combiner_get_gpioin(&s->irqs, dev, 1); sysbus_mmio_map(busdev, 0, EXYNOS4210_EXT_COMBINER_BASE_ADDR); /* Initialize board IRQs. */ exynos4210_init_board_irqs(&s->irqs); /*** Memory ***/ /* Chip-ID and OMR */ memory_region_init_io(&s->chipid_mem, NULL, &exynos4210_chipid_and_omr_ops, NULL, "exynos4210.chipid", sizeof(chipid_and_omr)); memory_region_add_subregion(system_mem, EXYNOS4210_CHIPID_ADDR, &s->chipid_mem); /* Internal ROM */ memory_region_init_ram(&s->irom_mem, NULL, "exynos4210.irom", EXYNOS4210_IROM_SIZE, &error_fatal); memory_region_set_readonly(&s->irom_mem, true); memory_region_add_subregion(system_mem, EXYNOS4210_IROM_BASE_ADDR, &s->irom_mem); /* mirror of iROM */ memory_region_init_alias(&s->irom_alias_mem, NULL, "exynos4210.irom_alias", &s->irom_mem, 0, EXYNOS4210_IROM_SIZE); memory_region_set_readonly(&s->irom_alias_mem, true); memory_region_add_subregion(system_mem, EXYNOS4210_IROM_MIRROR_BASE_ADDR, &s->irom_alias_mem); /* Internal RAM */ memory_region_init_ram(&s->iram_mem, NULL, "exynos4210.iram", EXYNOS4210_IRAM_SIZE, &error_fatal); memory_region_add_subregion(system_mem, EXYNOS4210_IRAM_BASE_ADDR, &s->iram_mem); /* PMU. * The only reason of existence at the moment is that secondary CPU boot * loader uses PMU INFORM5 register as a holding pen. */ sysbus_create_simple("exynos4210.pmu", EXYNOS4210_PMU_BASE_ADDR, NULL); sysbus_create_simple("exynos4210.clk", EXYNOS4210_CLK_BASE_ADDR, NULL); sysbus_create_simple("exynos4210.rng", EXYNOS4210_RNG_BASE_ADDR, NULL); /* PWM */ sysbus_create_varargs("exynos4210.pwm", EXYNOS4210_PWM_BASE_ADDR, s->irq_table[exynos4210_get_irq(22, 0)], s->irq_table[exynos4210_get_irq(22, 1)], s->irq_table[exynos4210_get_irq(22, 2)], s->irq_table[exynos4210_get_irq(22, 3)], s->irq_table[exynos4210_get_irq(22, 4)], NULL); /* RTC */ sysbus_create_varargs("exynos4210.rtc", EXYNOS4210_RTC_BASE_ADDR, s->irq_table[exynos4210_get_irq(23, 0)], s->irq_table[exynos4210_get_irq(23, 1)], NULL); /* Multi Core Timer */ dev = qdev_create(NULL, "exynos4210.mct"); qdev_init_nofail(dev); busdev = SYS_BUS_DEVICE(dev); for (n = 0; n < 4; n++) { /* Connect global timer interrupts to Combiner gpio_in */ sysbus_connect_irq(busdev, n, s->irq_table[exynos4210_get_irq(1, 4 + n)]); } /* Connect local timer interrupts to Combiner gpio_in */ sysbus_connect_irq(busdev, 4, s->irq_table[exynos4210_get_irq(51, 0)]); sysbus_connect_irq(busdev, 5, s->irq_table[exynos4210_get_irq(35, 3)]); sysbus_mmio_map(busdev, 0, EXYNOS4210_MCT_BASE_ADDR); /*** I2C ***/ for (n = 0; n < EXYNOS4210_I2C_NUMBER; n++) { uint32_t addr = EXYNOS4210_I2C_BASE_ADDR + EXYNOS4210_I2C_SHIFT * n; qemu_irq i2c_irq; if (n < 8) { i2c_irq = s->irq_table[exynos4210_get_irq(EXYNOS4210_I2C_INTG, n)]; } else { i2c_irq = s->irq_table[exynos4210_get_irq(EXYNOS4210_HDMI_INTG, 1)]; } dev = qdev_create(NULL, "exynos4210.i2c"); qdev_init_nofail(dev); busdev = SYS_BUS_DEVICE(dev); sysbus_connect_irq(busdev, 0, i2c_irq); sysbus_mmio_map(busdev, 0, addr); s->i2c_if[n] = (I2CBus *)qdev_get_child_bus(dev, "i2c"); } /*** UARTs ***/ exynos4210_uart_create(EXYNOS4210_UART0_BASE_ADDR, EXYNOS4210_UART0_FIFO_SIZE, 0, NULL, s->irq_table[exynos4210_get_irq(EXYNOS4210_UART_INT_GRP, 0)]); exynos4210_uart_create(EXYNOS4210_UART1_BASE_ADDR, EXYNOS4210_UART1_FIFO_SIZE, 1, NULL, s->irq_table[exynos4210_get_irq(EXYNOS4210_UART_INT_GRP, 1)]); exynos4210_uart_create(EXYNOS4210_UART2_BASE_ADDR, EXYNOS4210_UART2_FIFO_SIZE, 2, NULL, s->irq_table[exynos4210_get_irq(EXYNOS4210_UART_INT_GRP, 2)]); exynos4210_uart_create(EXYNOS4210_UART3_BASE_ADDR, EXYNOS4210_UART3_FIFO_SIZE, 3, NULL, s->irq_table[exynos4210_get_irq(EXYNOS4210_UART_INT_GRP, 3)]); /*** SD/MMC host controllers ***/ for (n = 0; n < EXYNOS4210_SDHCI_NUMBER; n++) { DeviceState *carddev; BlockBackend *blk; DriveInfo *di; dev = qdev_create(NULL, TYPE_SYSBUS_SDHCI); qdev_prop_set_uint64(dev, "capareg", EXYNOS4210_SDHCI_CAPABILITIES); qdev_init_nofail(dev); busdev = SYS_BUS_DEVICE(dev); sysbus_mmio_map(busdev, 0, EXYNOS4210_SDHCI_ADDR(n)); sysbus_connect_irq(busdev, 0, s->irq_table[exynos4210_get_irq(29, n)]); di = drive_get(IF_SD, 0, n); blk = di ? blk_by_legacy_dinfo(di) : NULL; carddev = qdev_create(qdev_get_child_bus(dev, "sd-bus"), TYPE_SD_CARD); qdev_prop_set_drive(carddev, "drive", blk, &error_abort); qdev_init_nofail(carddev); } /*** Display controller (FIMD) ***/ sysbus_create_varargs("exynos4210.fimd", EXYNOS4210_FIMD0_BASE_ADDR, s->irq_table[exynos4210_get_irq(11, 0)], s->irq_table[exynos4210_get_irq(11, 1)], s->irq_table[exynos4210_get_irq(11, 2)], NULL); sysbus_create_simple(TYPE_EXYNOS4210_EHCI, EXYNOS4210_EHCI_BASE_ADDR, s->irq_table[exynos4210_get_irq(28, 3)]); return s; }