在 2020/10/11 上午4:43, Philippe Mathieu-Daudé 写道:
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 <f4...@amsat.org>
Reviewed-by: Jiaxun Yang <jiaxun.y...@flygoat.com> Thanks - Jiaxun
--- hw/mips/fuloong2e.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/hw/mips/fuloong2e.c b/hw/mips/fuloong2e.c index b000ed1d7f7..b25c3df19d0 100644 --- a/hw/mips/fuloong2e.c +++ b/hw/mips/fuloong2e.c @@ -28,6 +28,7 @@ #include "hw/isa/superio.h" #include "net/net.h" #include "hw/boards.h" +#include "hw/qdev-clock.h" #include "hw/i2c/smbus_eeprom.h" #include "hw/block/flash.h" #include "hw/mips/mips.h" @@ -300,10 +301,15 @@ static void mips_fuloong2e_init(MachineState *machine) I2CBus *smbus; MIPSCPU *cpu; CPUMIPSState *env; + Clock *cpuclk; DeviceState *dev;/* init CPUs */- cpu = MIPS_CPU(cpu_create(machine->cpu_type)); + cpu = MIPS_CPU(object_new(machine->cpu_type)); + cpuclk = clock_new(OBJECT(machine), "cpu-refclk"); + clock_set_hz(cpuclk, 533080000); /* ~533 MHz */ + qdev_connect_clock_in(DEVICE(cpu), "clk-in", cpuclk); + qdev_realize(DEVICE(cpu), NULL, &error_abort); env = &cpu->env;qemu_register_reset(main_cpu_reset, cpu);
