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[PATCH v3 04/16] hw/arm/bcm2835_peripherals: Use the SYS_timer
From: |
Philippe Mathieu-Daudé |
Subject: |
[PATCH v3 04/16] hw/arm/bcm2835_peripherals: Use the SYS_timer |
Date: |
Sun, 20 Oct 2019 01:47:03 +0200 |
Connect the recently added SYS_timer.
Now U-Boot does not hang anymore polling a free running counter
stuck at 0.
This timer is also used by the Linux kernel thermal subsystem.
Reviewed-by: Alistair Francis <address@hidden>
Signed-off-by: Philippe Mathieu-Daudé <address@hidden>
---
v2: Remove spurious error check (Alex)
---
hw/arm/bcm2835_peripherals.c | 17 ++++++++++++++++-
include/hw/arm/bcm2835_peripherals.h | 3 ++-
2 files changed, 18 insertions(+), 2 deletions(-)
diff --git a/hw/arm/bcm2835_peripherals.c b/hw/arm/bcm2835_peripherals.c
index 70bf927a02..17207ae07e 100644
--- a/hw/arm/bcm2835_peripherals.c
+++ b/hw/arm/bcm2835_peripherals.c
@@ -58,6 +58,10 @@ static void bcm2835_peripherals_init(Object *obj)
/* Interrupt Controller */
sysbus_init_child_obj(obj, "ic", &s->ic, sizeof(s->ic), TYPE_BCM2835_IC);
+ /* SYS Timer */
+ sysbus_init_child_obj(obj, "systimer", &s->systmr, sizeof(s->systmr),
+ TYPE_BCM2835_SYSTIMER);
+
/* UART0 */
sysbus_init_child_obj(obj, "uart0", &s->uart0, sizeof(s->uart0),
TYPE_PL011);
@@ -171,6 +175,18 @@ static void bcm2835_peripherals_realize(DeviceState *dev,
Error **errp)
sysbus_mmio_get_region(SYS_BUS_DEVICE(&s->ic), 0));
sysbus_pass_irq(SYS_BUS_DEVICE(s), SYS_BUS_DEVICE(&s->ic));
+ /* Sys Timer */
+ object_property_set_bool(OBJECT(&s->systmr), true, "realized", &err);
+ if (err) {
+ error_propagate(errp, err);
+ return;
+ }
+ memory_region_add_subregion(&s->peri_mr, ST_OFFSET,
+ sysbus_mmio_get_region(SYS_BUS_DEVICE(&s->systmr), 0));
+ sysbus_connect_irq(SYS_BUS_DEVICE(&s->systmr), 0,
+ qdev_get_gpio_in_named(DEVICE(&s->ic), BCM2835_IC_ARM_IRQ,
+ INTERRUPT_ARM_TIMER));
+
/* UART0 */
qdev_prop_set_chr(DEVICE(&s->uart0), "chardev", serial_hd(0));
object_property_set_bool(OBJECT(&s->uart0), true, "realized", &err);
@@ -352,7 +368,6 @@ static void bcm2835_peripherals_realize(DeviceState *dev,
Error **errp)
}
create_unimp(s, &s->armtmr, "bcm2835-sp804", ARMCTRL_TIMER0_1_OFFSET,
0x40);
- create_unimp(s, &s->systmr, "bcm2835-systimer", ST_OFFSET, 0x20);
create_unimp(s, &s->cprman, "bcm2835-cprman", CPRMAN_OFFSET, 0x1000);
create_unimp(s, &s->a2w, "bcm2835-a2w", A2W_OFFSET, 0x1000);
create_unimp(s, &s->i2s, "bcm2835-i2s", I2S_OFFSET, 0x100);
diff --git a/include/hw/arm/bcm2835_peripherals.h
b/include/hw/arm/bcm2835_peripherals.h
index be7ad9b499..7859281e11 100644
--- a/include/hw/arm/bcm2835_peripherals.h
+++ b/include/hw/arm/bcm2835_peripherals.h
@@ -24,6 +24,7 @@
#include "hw/sd/sdhci.h"
#include "hw/sd/bcm2835_sdhost.h"
#include "hw/gpio/bcm2835_gpio.h"
+#include "hw/timer/bcm2835_systmr.h"
#include "hw/misc/unimp.h"
#define TYPE_BCM2835_PERIPHERALS "bcm2835-peripherals"
@@ -39,7 +40,7 @@ typedef struct BCM2835PeripheralState {
MemoryRegion ram_alias[4];
qemu_irq irq, fiq;
- UnimplementedDeviceState systmr;
+ BCM2835SystemTimerState systmr;
UnimplementedDeviceState armtmr;
UnimplementedDeviceState cprman;
UnimplementedDeviceState a2w;
--
2.21.0
- [PATCH v3 00/16] hw/arm/raspi: Add thermal/timer, improve address space, run U-boot, Philippe Mathieu-Daudé, 2019/10/19
- [PATCH v3 01/16] hw/misc/bcm2835_thermal: Add a dummy BCM2835 thermal sensor, Philippe Mathieu-Daudé, 2019/10/19
- [PATCH v3 02/16] hw/arm/bcm2835_peripherals: Use the thermal sensor block, Philippe Mathieu-Daudé, 2019/10/19
- [PATCH v3 04/16] hw/arm/bcm2835_peripherals: Use the SYS_timer,
Philippe Mathieu-Daudé <=
- [PATCH v3 03/16] hw/timer/bcm2835: Add the BCM2835 SYS_timer, Philippe Mathieu-Daudé, 2019/10/19
- [PATCH v3 05/16] hw/arm/bcm2836: Make the SoC code modular, Philippe Mathieu-Daudé, 2019/10/19
- [PATCH v3 06/16] hw/arm/bcm2836: Rename cpus[] as cpu[].core, Philippe Mathieu-Daudé, 2019/10/19
- [PATCH v3 08/16] hw/arm/bcm2835_peripherals: Add const link property in realize(), Philippe Mathieu-Daudé, 2019/10/19
- [PATCH v3 07/16] hw/arm/bcm2836: Use per CPU address spaces, Philippe Mathieu-Daudé, 2019/10/19