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


From: Philippe Mathieu-Daudé
Subject: [PATCH 08/16] hw/mips/fuloong2e: Set CPU frequency to 533 MHz
Date: Mon, 28 Sep 2020 19:15:31 +0200

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 --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);
-- 
2.26.2




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