qemu/include/hw/arm/msf2-soc.h
Peter Maydell 3b76e18520 hw/arm/msf2-soc: Wire up refclk
Wire up the refclk for the msf2 SoC.  This SoC runs the refclk at a
frequency which is programmably either /4, /8, /16 or /32 of the main
CPU clock.  We don't currently model the register which allows the
guest to set the divisor, so implement the refclk as a fixed /32 of
the CPU clock (which is the value of the divisor at reset).

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Damien Hedde <damien.hedde@greensocs.com>
Message-id: 20210812093356.1946-21-peter.maydell@linaro.org
2021-09-01 11:08:20 +01:00

77 lines
2.2 KiB
C

/*
* Microsemi Smartfusion2 SoC
*
* Copyright (c) 2017 Subbaraya Sundeep <sundeep.lkml@gmail.com>
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#ifndef HW_ARM_MSF2_SOC_H
#define HW_ARM_MSF2_SOC_H
#include "hw/arm/armv7m.h"
#include "hw/timer/mss-timer.h"
#include "hw/misc/msf2-sysreg.h"
#include "hw/ssi/mss-spi.h"
#include "hw/net/msf2-emac.h"
#include "hw/clock.h"
#include "qom/object.h"
#define TYPE_MSF2_SOC "msf2-soc"
OBJECT_DECLARE_SIMPLE_TYPE(MSF2State, MSF2_SOC)
#define MSF2_NUM_SPIS 2
#define MSF2_NUM_UARTS 2
/*
* System timer consists of two programmable 32-bit
* decrementing counters that generate individual interrupts to
* the Cortex-M3 processor
*/
#define MSF2_NUM_TIMERS 2
struct MSF2State {
/*< private >*/
SysBusDevice parent_obj;
/*< public >*/
ARMv7MState armv7m;
char *cpu_type;
char *part_name;
uint64_t envm_size;
uint64_t esram_size;
Clock *m3clk;
Clock *refclk;
uint8_t apb0div;
uint8_t apb1div;
MSF2SysregState sysreg;
MSSTimerState timer;
MSSSpiState spi[MSF2_NUM_SPIS];
MSF2EmacState emac;
MemoryRegion nvm;
MemoryRegion nvm_alias;
MemoryRegion sram;
};
#endif