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/*
* Allwinner H3 System on Chip emulation
*
* Copyright (C) 2019 Niek Linnenbank <nieklinnenbank@gmail.com>
*
* 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 <http://www.gnu.org/licenses/>.
*/
/*
* The Allwinner H3 is a System on Chip containing four ARM Cortex-A7
* processor cores. Features and specifications include DDR2/DDR3 memory,
* SD/MMC storage cards, 10/100/1000Mbit Ethernet, USB 2.0, HDMI and
* various I/O modules.
*
* This implementation is based on the following datasheet:
*
* https://linux-sunxi.org/File:Allwinner_H3_Datasheet_V1.2.pdf
*
* The latest datasheet and more info can be found on the Linux Sunxi wiki:
*
* https://linux-sunxi.org/H3
*/
#ifndef HW_ARM_ALLWINNER_H3_H
#define HW_ARM_ALLWINNER_H3_H
#include "qom/object.h"
#include "hw/timer/allwinner-a10-pit.h"
#include "hw/intc/arm_gic.h"
#include "hw/misc/allwinner-h3-ccu.h"
#include "hw/misc/allwinner-cpucfg.h"
#include "hw/misc/allwinner-h3-dramc.h"
#include "hw/misc/allwinner-h3-sysctrl.h"
#include "hw/misc/allwinner-sid.h"
#include "hw/sd/allwinner-sdhost.h"
#include "hw/net/allwinner-sun8i-emac.h"
#include "hw/rtc/allwinner-rtc.h"
#include "hw/i2c/allwinner-i2c.h"
#include "hw/watchdog/allwinner-wdt.h"
#include "target/arm/cpu.h"
#include "system/block-backend.h"
/**
* Allwinner H3 device list
*
* This enumeration is can be used refer to a particular device in the
* Allwinner H3 SoC. For example, the physical memory base address for
* each device can be found in the AwH3State object in the memmap member
* using the device enum value as index.
*
* @see AwH3State
*/
enum {
AW_H3_DEV_SRAM_A1,
AW_H3_DEV_SRAM_A2,
AW_H3_DEV_SRAM_C,
AW_H3_DEV_SYSCTRL,
AW_H3_DEV_MMC0,
AW_H3_DEV_SID,
AW_H3_DEV_EHCI0,
AW_H3_DEV_OHCI0,
AW_H3_DEV_EHCI1,
AW_H3_DEV_OHCI1,
AW_H3_DEV_EHCI2,
AW_H3_DEV_OHCI2,
AW_H3_DEV_EHCI3,
AW_H3_DEV_OHCI3,
AW_H3_DEV_CCU,
AW_H3_DEV_PIT,
AW_H3_DEV_UART0,
AW_H3_DEV_UART1,
AW_H3_DEV_UART2,
AW_H3_DEV_UART3,
AW_H3_DEV_EMAC,
AW_H3_DEV_TWI0,
AW_H3_DEV_TWI1,
AW_H3_DEV_TWI2,
AW_H3_DEV_DRAMCOM,
AW_H3_DEV_DRAMCTL,
AW_H3_DEV_DRAMPHY,
AW_H3_DEV_GIC_DIST,
AW_H3_DEV_GIC_CPU,
AW_H3_DEV_GIC_HYP,
AW_H3_DEV_GIC_VCPU,
AW_H3_DEV_RTC,
AW_H3_DEV_CPUCFG,
AW_H3_DEV_R_TWI,
AW_H3_DEV_SDRAM,
AW_H3_DEV_WDT
};
/** Total number of CPU cores in the H3 SoC */
#define AW_H3_NUM_CPUS (4)
/**
* Allwinner H3 object model
* @{
*/
/** Object type for the Allwinner H3 SoC */
#define TYPE_AW_H3 "allwinner-h3"
/** Convert input object to Allwinner H3 state object */
OBJECT_DECLARE_SIMPLE_TYPE(AwH3State, AW_H3)
/** @} */
/**
* Allwinner H3 object
*
* This struct contains the state of all the devices
* which are currently emulated by the H3 SoC code.
*/
struct AwH3State {
/*< private >*/
DeviceState parent_obj;
/*< public >*/
ARMCPU cpus[AW_H3_NUM_CPUS];
const hwaddr *memmap;
AwA10PITState timer;
AwH3ClockCtlState ccu;
AwCpuCfgState cpucfg;
AwH3DramCtlState dramc;
AwH3SysCtrlState sysctrl;
AwSidState sid;
AwSdHostState mmc0;
AWI2CState i2c0;
AWI2CState i2c1;
AWI2CState i2c2;
AWI2CState r_twi;
AwSun8iEmacState emac;
AwRtcState rtc;
AwWdtState wdt;
GICState gic;
MemoryRegion sram_a1;
MemoryRegion sram_a2;
MemoryRegion sram_c;
};
/**
* Emulate Boot ROM firmware setup functionality.
*
* A real Allwinner H3 SoC contains a Boot ROM
* which is the first code that runs right after
* the SoC is powered on. The Boot ROM is responsible
* for loading user code (e.g. a bootloader) from any
* of the supported external devices and writing the
* downloaded code to internal SRAM. After loading the SoC
* begins executing the code written to SRAM.
*
* This function emulates the Boot ROM by copying 32 KiB
* of data from the given block device and writes it to
* the start of the first internal SRAM memory.
*
* @s: Allwinner H3 state object pointer
* @blk: Block backend device object pointer
*/
void allwinner_h3_bootrom_setup(AwH3State *s, BlockBackend *blk);
#endif /* HW_ARM_ALLWINNER_H3_H */
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