1 /* 2 * Allwinner H3 System on Chip emulation 3 * 4 * Copyright (C) 2019 Niek Linnenbank <nieklinnenbank@gmail.com> 5 * 6 * This program is free software: you can redistribute it and/or modify 7 * it under the terms of the GNU General Public License as published by 8 * the Free Software Foundation, either version 2 of the License, or 9 * (at your option) any later version. 10 * 11 * This program is distributed in the hope that it will be useful, 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 * GNU General Public License for more details. 15 * 16 * You should have received a copy of the GNU General Public License 17 * along with this program. If not, see <http://www.gnu.org/licenses/>. 18 */ 19 20 /* 21 * The Allwinner H3 is a System on Chip containing four ARM Cortex-A7 22 * processor cores. Features and specifications include DDR2/DDR3 memory, 23 * SD/MMC storage cards, 10/100/1000Mbit Ethernet, USB 2.0, HDMI and 24 * various I/O modules. 25 * 26 * This implementation is based on the following datasheet: 27 * 28 * https://linux-sunxi.org/File:Allwinner_H3_Datasheet_V1.2.pdf 29 * 30 * The latest datasheet and more info can be found on the Linux Sunxi wiki: 31 * 32 * https://linux-sunxi.org/H3 33 */ 34 35 #ifndef HW_ARM_ALLWINNER_H3_H 36 #define HW_ARM_ALLWINNER_H3_H 37 38 #include "qom/object.h" 39 #include "hw/arm/boot.h" 40 #include "hw/timer/allwinner-a10-pit.h" 41 #include "hw/intc/arm_gic.h" 42 #include "hw/misc/allwinner-h3-ccu.h" 43 #include "hw/misc/allwinner-cpucfg.h" 44 #include "hw/misc/allwinner-h3-dramc.h" 45 #include "hw/misc/allwinner-h3-sysctrl.h" 46 #include "hw/misc/allwinner-sid.h" 47 #include "hw/sd/allwinner-sdhost.h" 48 #include "hw/net/allwinner-sun8i-emac.h" 49 #include "hw/rtc/allwinner-rtc.h" 50 #include "hw/i2c/allwinner-i2c.h" 51 #include "target/arm/cpu.h" 52 #include "sysemu/block-backend.h" 53 54 /** 55 * Allwinner H3 device list 56 * 57 * This enumeration is can be used refer to a particular device in the 58 * Allwinner H3 SoC. For example, the physical memory base address for 59 * each device can be found in the AwH3State object in the memmap member 60 * using the device enum value as index. 61 * 62 * @see AwH3State 63 */ 64 enum { 65 AW_H3_DEV_SRAM_A1, 66 AW_H3_DEV_SRAM_A2, 67 AW_H3_DEV_SRAM_C, 68 AW_H3_DEV_SYSCTRL, 69 AW_H3_DEV_MMC0, 70 AW_H3_DEV_SID, 71 AW_H3_DEV_EHCI0, 72 AW_H3_DEV_OHCI0, 73 AW_H3_DEV_EHCI1, 74 AW_H3_DEV_OHCI1, 75 AW_H3_DEV_EHCI2, 76 AW_H3_DEV_OHCI2, 77 AW_H3_DEV_EHCI3, 78 AW_H3_DEV_OHCI3, 79 AW_H3_DEV_CCU, 80 AW_H3_DEV_PIT, 81 AW_H3_DEV_UART0, 82 AW_H3_DEV_UART1, 83 AW_H3_DEV_UART2, 84 AW_H3_DEV_UART3, 85 AW_H3_DEV_EMAC, 86 AW_H3_DEV_TWI0, 87 AW_H3_DEV_DRAMCOM, 88 AW_H3_DEV_DRAMCTL, 89 AW_H3_DEV_DRAMPHY, 90 AW_H3_DEV_GIC_DIST, 91 AW_H3_DEV_GIC_CPU, 92 AW_H3_DEV_GIC_HYP, 93 AW_H3_DEV_GIC_VCPU, 94 AW_H3_DEV_RTC, 95 AW_H3_DEV_CPUCFG, 96 AW_H3_DEV_SDRAM 97 }; 98 99 /** Total number of CPU cores in the H3 SoC */ 100 #define AW_H3_NUM_CPUS (4) 101 102 /** 103 * Allwinner H3 object model 104 * @{ 105 */ 106 107 /** Object type for the Allwinner H3 SoC */ 108 #define TYPE_AW_H3 "allwinner-h3" 109 110 /** Convert input object to Allwinner H3 state object */ 111 OBJECT_DECLARE_SIMPLE_TYPE(AwH3State, AW_H3) 112 113 /** @} */ 114 115 /** 116 * Allwinner H3 object 117 * 118 * This struct contains the state of all the devices 119 * which are currently emulated by the H3 SoC code. 120 */ 121 struct AwH3State { 122 /*< private >*/ 123 DeviceState parent_obj; 124 /*< public >*/ 125 126 ARMCPU cpus[AW_H3_NUM_CPUS]; 127 const hwaddr *memmap; 128 AwA10PITState timer; 129 AwH3ClockCtlState ccu; 130 AwCpuCfgState cpucfg; 131 AwH3DramCtlState dramc; 132 AwH3SysCtrlState sysctrl; 133 AwSidState sid; 134 AwSdHostState mmc0; 135 AWI2CState i2c0; 136 AwSun8iEmacState emac; 137 AwRtcState rtc; 138 GICState gic; 139 MemoryRegion sram_a1; 140 MemoryRegion sram_a2; 141 MemoryRegion sram_c; 142 }; 143 144 /** 145 * Emulate Boot ROM firmware setup functionality. 146 * 147 * A real Allwinner H3 SoC contains a Boot ROM 148 * which is the first code that runs right after 149 * the SoC is powered on. The Boot ROM is responsible 150 * for loading user code (e.g. a bootloader) from any 151 * of the supported external devices and writing the 152 * downloaded code to internal SRAM. After loading the SoC 153 * begins executing the code written to SRAM. 154 * 155 * This function emulates the Boot ROM by copying 32 KiB 156 * of data from the given block device and writes it to 157 * the start of the first internal SRAM memory. 158 * 159 * @s: Allwinner H3 state object pointer 160 * @blk: Block backend device object pointer 161 */ 162 void allwinner_h3_bootrom_setup(AwH3State *s, BlockBackend *blk); 163 164 #endif /* HW_ARM_ALLWINNER_H3_H */ 165