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hw/mips/fuloong2e: Set CPU frequency to 533 MHz

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The CPU frequency is normally provided by the firmware in the
"cpuclock" environment variable. The 2E board can handles up
to 660MHz, but be conservative and take the same value used
by the Linux kernel: 533 MHz.

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Message-Id: <20201012095804.3335117-15-f4bug@amsat.org>
This commit is contained in:
Philippe Mathieu-Daudé
2020-10-12 11:57:57 +02:00
parent dccf092d67
commit 3ca7639ff0
1 changed files with 6 additions and 1 deletions
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7
hw/mips/fuloong2e.c
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@ -23,6 +23,7 @@
#include "qemu/units.h" #include "qemu/units.h"
#include "qapi/error.h" #include "qapi/error.h"
#include "cpu.h" #include "cpu.h"
#include "hw/clock.h"
#include "hw/intc/i8259.h" #include "hw/intc/i8259.h"
#include "hw/dma/i8257.h" #include "hw/dma/i8257.h"
#include "hw/isa/superio.h" #include "hw/isa/superio.h"
@ -298,12 +299,16 @@ static void mips_fuloong2e_init(MachineState *machine)
PCIBus *pci_bus; PCIBus *pci_bus;
ISABus *isa_bus; ISABus *isa_bus;
I2CBus *smbus; I2CBus *smbus;
Clock *cpuclk;
MIPSCPU *cpu; MIPSCPU *cpu;
CPUMIPSState *env; CPUMIPSState *env;
DeviceState *dev; DeviceState *dev;
cpuclk = clock_new(OBJECT(machine), "cpu-refclk");
clock_set_hz(cpuclk, 533080000); /* ~533 MHz */
/* init CPUs */ /* init CPUs */
cpu = MIPS_CPU(cpu_create(machine->cpu_type)); cpu = mips_cpu_create_with_clock(machine->cpu_type, cpuclk);
env = &cpu->env; env = &cpu->env;
qemu_register_reset(main_cpu_reset, cpu); qemu_register_reset(main_cpu_reset, cpu);