qemu/include/hw/misc/iotkit-sysinfo.h
Peter Maydell 446587a914 hw/misc/iotkit-sysinfo.c: Implement SYS_CONFIG1 and IIDR
For SSE-300, the SYSINFO register block has two new registers:

 * SYS_CONFIG1 indicates the config for a potential CPU2 and CPU3;
   since the SSE-300 can only be configured with a single CPU it
   is always zero

 * IIDR is the subsystem implementation identity register;
   its value is set by the SoC integrator, so we plumb this in from
   the armsse.c code as we do with SYS_VERSION and SYS_CONFIG

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Tested-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20210219144617.4782-11-peter.maydell@linaro.org
2021-03-08 17:20:01 +00:00

46 lines
1.1 KiB
C

/*
* ARM IoTKit system information block
*
* Copyright (c) 2018 Linaro Limited
* Written by Peter Maydell
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 or
* (at your option) any later version.
*/
/*
* This is a model of the "system information block" which is part of the
* Arm IoTKit and documented in
* https://developer.arm.com/documentation/ecm0601256/latest
* QEMU interface:
* + QOM property "SYS_VERSION": value to use for SYS_VERSION register
* + QOM property "SYS_CONFIG": value to use for SYS_CONFIG register
* + sysbus MMIO region 0: the system information register bank
*/
#ifndef HW_MISC_IOTKIT_SYSINFO_H
#define HW_MISC_IOTKIT_SYSINFO_H
#include "hw/sysbus.h"
#include "qom/object.h"
#define TYPE_IOTKIT_SYSINFO "iotkit-sysinfo"
OBJECT_DECLARE_SIMPLE_TYPE(IoTKitSysInfo, IOTKIT_SYSINFO)
struct IoTKitSysInfo {
/*< private >*/
SysBusDevice parent_obj;
/*< public >*/
MemoryRegion iomem;
/* Properties */
uint32_t sys_version;
uint32_t sys_config;
uint32_t sse_version;
uint32_t iidr;
};
#endif