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[08/16] hw/mips/fuloong2e: Set CPU frequency to 533 MHz

Message ID 20200928171539.788309-9-f4bug@amsat.org
State New
Headers show
Series hw/mips: Set CPU frequency | expand

Commit Message

Philippe Mathieu-Daudé Sept. 28, 2020, 5:15 p.m. UTC 
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>
---
 hw/mips/fuloong2e.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/hw/mips/fuloong2e.c b/hw/mips/fuloong2e.c
index f28609976bf..1a925dcc201 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 = qdev_init_clock_out(DEVICE(cpu), "cpuclk");
+    clock_set_hz(cpuclk, 533080000); /* ~533 MHz */
+    qdev_connect_clock_in(DEVICE(cpu), "clk", cpuclk);
+    qdev_realize(DEVICE(cpu), NULL, &error_abort);
     env = &cpu->env;
 
     qemu_register_reset(main_cpu_reset, cpu);