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[PATCH v4 14/21] hw/mips/fuloong2e: Set CPU frequency to 533 MHz
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From: |
Philippe Mathieu-Daudé |
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Subject: |
[PATCH v4 14/21] hw/mips/fuloong2e: Set CPU frequency to 533 MHz |
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Date: |
Mon, 12 Oct 2020 11:57:57 +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.
Reviewed-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
---
hw/mips/fuloong2e.c | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/hw/mips/fuloong2e.c b/hw/mips/fuloong2e.c
index b000ed1d7f7..b8234f61083 100644
--- a/hw/mips/fuloong2e.c
+++ b/hw/mips/fuloong2e.c
@@ -23,6 +23,7 @@
#include "qemu/units.h"
#include "qapi/error.h"
#include "cpu.h"
+#include "hw/clock.h"
#include "hw/intc/i8259.h"
#include "hw/dma/i8257.h"
#include "hw/isa/superio.h"
@@ -298,12 +299,16 @@ static void mips_fuloong2e_init(MachineState *machine)
PCIBus *pci_bus;
ISABus *isa_bus;
I2CBus *smbus;
+ Clock *cpuclk;
MIPSCPU *cpu;
CPUMIPSState *env;
DeviceState *dev;
+ cpuclk = clock_new(OBJECT(machine), "cpu-refclk");
+ clock_set_hz(cpuclk, 533080000); /* ~533 MHz */
+
/* init CPUs */
- cpu = MIPS_CPU(cpu_create(machine->cpu_type));
+ cpu = mips_cpu_create_with_clock(machine->cpu_type, cpuclk);
env = &cpu->env;
qemu_register_reset(main_cpu_reset, cpu);
--
2.26.2
- [PATCH v4 04/21] hw/core/clock: add the clock_new helper function, (continued)
- [PATCH v4 04/21] hw/core/clock: add the clock_new helper function, Philippe Mathieu-Daudé, 2020/10/12
- [PATCH v4 05/21] target/mips: Move cpu_mips_get_random() with CP0 helpers, Philippe Mathieu-Daudé, 2020/10/12
- [PATCH v4 06/21] target/mips/cp0_timer: Explicit unit in variable name, Philippe Mathieu-Daudé, 2020/10/12
- [PATCH v4 07/21] target/mips/cp0_timer: Document TIMER_PERIOD origin, Philippe Mathieu-Daudé, 2020/10/12
- [PATCH v4 08/21] target/mips: Move cp0_count_ns to CPUMIPSState, Philippe Mathieu-Daudé, 2020/10/12
- [PATCH v4 09/21] target/mips/cpu: Calculate the CP0 timer period using the CPU frequency, Philippe Mathieu-Daudé, 2020/10/12
- [PATCH v4 10/21] target/mips/cpu: Make cp0_count_rate a property, Philippe Mathieu-Daudé, 2020/10/12
- [PATCH v4 11/21] target/mips/cpu: Allow the CPU to use dynamic frequencies, Philippe Mathieu-Daudé, 2020/10/12
- [PATCH v4 12/21] target/mips/cpu: Introduce mips_cpu_create_with_clock() helper, Philippe Mathieu-Daudé, 2020/10/12
- [PATCH v4 13/21] hw/mips/r4k: Explicit CPU frequency is 200 MHz, Philippe Mathieu-Daudé, 2020/10/12
- [PATCH v4 14/21] hw/mips/fuloong2e: Set CPU frequency to 533 MHz,
Philippe Mathieu-Daudé <=
- [PATCH v4 15/21] hw/mips/mipssim: Correct CPU frequency, Philippe Mathieu-Daudé, 2020/10/12
- [PATCH v4 16/21] hw/mips/jazz: Correct CPU frequencies, Philippe Mathieu-Daudé, 2020/10/12
- [PATCH v4 17/21] hw/mips/cps: Expose input clock and connect it to CPU cores, Philippe Mathieu-Daudé, 2020/10/12
- [PATCH v4 18/21] hw/mips/boston: Set CPU frequency to 1 GHz, Philippe Mathieu-Daudé, 2020/10/12
- [PATCH v4 19/21] hw/mips/malta: Set CPU frequency to 320 MHz, Philippe Mathieu-Daudé, 2020/10/12
- [PATCH v4 20/21] hw/mips/cps: Do not allow use without input clock, Philippe Mathieu-Daudé, 2020/10/12
- [PATCH v4 21/21] target/mips/cpu: Display warning when CPU is used without input clock, Philippe Mathieu-Daudé, 2020/10/12
- Re: [PATCH v4 00/21] hw/mips: Set CPU frequency, Philippe Mathieu-Daudé, 2020/10/16