OpenE2K/qemu-e2k
13
4
Fork 0
Code Issues 4 Pull Requests Projects 2 Releases Activity

hw/arm: Add WDT to Allwinner-A10 and Cubieboard

Browse Source 
This patch adds WDT to Allwinner-A10 and Cubieboard.
WDT is added as an overlay to the Timer module memory map.

Signed-off-by: Strahinja Jankovic <strahinja.p.jankovic@gmail.com>
Reviewed-by: Niek Linnenbank <nieklinnenbank@gmail.com>
Message-id: 20230326202256.22980-3-strahinja.p.jankovic@gmail.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Strahinja Jankovic 2023-04-20 10:21:13 +01:00 committed by Peter Maydell
parent 17b9730f98
commit 470f9f2d93
4 changed files with 11 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
docs/system/arm/cubieboard.rst
View File

@ -15,3 +15,4 @@ Emulated devices:
- USB controller - USB controller
- SATA controller - SATA controller
- TWI (I2C) controller - TWI (I2C) controller
- Watchdog timer

1
hw/arm/Kconfig
View File

@ -325,6 +325,7 @@ config ALLWINNER_A10
select ALLWINNER_A10_PIC select ALLWINNER_A10_PIC
select ALLWINNER_A10_CCM select ALLWINNER_A10_CCM
select ALLWINNER_A10_DRAMC select ALLWINNER_A10_DRAMC
select ALLWINNER_WDT
select ALLWINNER_EMAC select ALLWINNER_EMAC
select ALLWINNER_I2C select ALLWINNER_I2C
select AXP209_PMU select AXP209_PMU

7
hw/arm/allwinner-a10.c
View File

@ -38,6 +38,7 @@
#define AW_A10_EHCI_BASE 0x01c14000 #define AW_A10_EHCI_BASE 0x01c14000
#define AW_A10_OHCI_BASE 0x01c14400 #define AW_A10_OHCI_BASE 0x01c14400
#define AW_A10_SATA_BASE 0x01c18000 #define AW_A10_SATA_BASE 0x01c18000
#define AW_A10_WDT_BASE 0x01c20c90
#define AW_A10_RTC_BASE 0x01c20d00 #define AW_A10_RTC_BASE 0x01c20d00
#define AW_A10_I2C0_BASE 0x01c2ac00 #define AW_A10_I2C0_BASE 0x01c2ac00
@ -92,6 +93,8 @@ static void aw_a10_init(Object *obj)
object_initialize_child(obj, "mmc0", &s->mmc0, TYPE_AW_SDHOST_SUN4I); object_initialize_child(obj, "mmc0", &s->mmc0, TYPE_AW_SDHOST_SUN4I);
object_initialize_child(obj, "rtc", &s->rtc, TYPE_AW_RTC_SUN4I); object_initialize_child(obj, "rtc", &s->rtc, TYPE_AW_RTC_SUN4I);
object_initialize_child(obj, "wdt", &s->wdt, TYPE_AW_WDT_SUN4I);
} }
static void aw_a10_realize(DeviceState *dev, Error **errp) static void aw_a10_realize(DeviceState *dev, Error **errp)
@ -203,6 +206,10 @@ static void aw_a10_realize(DeviceState *dev, Error **errp)
sysbus_realize(SYS_BUS_DEVICE(&s->i2c0), &error_fatal); sysbus_realize(SYS_BUS_DEVICE(&s->i2c0), &error_fatal);
sysbus_mmio_map(SYS_BUS_DEVICE(&s->i2c0), 0, AW_A10_I2C0_BASE); sysbus_mmio_map(SYS_BUS_DEVICE(&s->i2c0), 0, AW_A10_I2C0_BASE);
sysbus_connect_irq(SYS_BUS_DEVICE(&s->i2c0), 0, qdev_get_gpio_in(dev, 7)); sysbus_connect_irq(SYS_BUS_DEVICE(&s->i2c0), 0, qdev_get_gpio_in(dev, 7));
/* WDT */
sysbus_realize(SYS_BUS_DEVICE(&s->wdt), &error_fatal);
sysbus_mmio_map_overlap(SYS_BUS_DEVICE(&s->wdt), 0, AW_A10_WDT_BASE, 1);
} }
static void aw_a10_class_init(ObjectClass *oc, void *data) static void aw_a10_class_init(ObjectClass *oc, void *data)

2
include/hw/arm/allwinner-a10.h
View File

@ -13,6 +13,7 @@
#include "hw/misc/allwinner-a10-ccm.h" #include "hw/misc/allwinner-a10-ccm.h"
#include "hw/misc/allwinner-a10-dramc.h" #include "hw/misc/allwinner-a10-dramc.h"
#include "hw/i2c/allwinner-i2c.h" #include "hw/i2c/allwinner-i2c.h"
#include "hw/watchdog/allwinner-wdt.h"
#include "sysemu/block-backend.h" #include "sysemu/block-backend.h"
#include "target/arm/cpu.h" #include "target/arm/cpu.h"
@ -41,6 +42,7 @@ struct AwA10State {
AwSdHostState mmc0; AwSdHostState mmc0;
AWI2CState i2c0; AWI2CState i2c0;
AwRtcState rtc; AwRtcState rtc;
AwWdtState wdt;
MemoryRegion sram_a; MemoryRegion sram_a;
EHCISysBusState ehci[AW_A10_NUM_USB]; EHCISysBusState ehci[AW_A10_NUM_USB];
OHCISysBusState ohci[AW_A10_NUM_USB]; OHCISysBusState ohci[AW_A10_NUM_USB];