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[Qemu-arm] [PATCH v3 04/13] arm: Instantiate NRF51 random number generat
From: |
Steffen Görtz |
Subject: |
[Qemu-arm] [PATCH v3 04/13] arm: Instantiate NRF51 random number generator |
Date: |
Tue, 30 Oct 2018 20:25:18 -0400 |
Use RNG in SOC.
Signed-off-by: Steffen Görtz <address@hidden>
---
hw/arm/nrf51_soc.c | 16 ++++++++++++++++
include/hw/arm/nrf51_soc.h | 2 ++
2 files changed, 18 insertions(+)
diff --git a/hw/arm/nrf51_soc.c b/hw/arm/nrf51_soc.c
index 55f8eaafcb..d2a19b8ead 100644
--- a/hw/arm/nrf51_soc.c
+++ b/hw/arm/nrf51_soc.c
@@ -86,6 +86,19 @@ static void nrf51_soc_realize(DeviceState *dev_soc, Error
**errp)
qdev_get_gpio_in(DEVICE(&s->cpu),
BASE_TO_IRQ(NRF51_UART_BASE)));
+ /* RNG */
+ object_property_set_bool(OBJECT(&s->rng), true, "realized", &err);
+ if (err) {
+ error_propagate(errp, err);
+ return;
+ }
+
+ mr = sysbus_mmio_get_region(SYS_BUS_DEVICE(&s->rng), 0);
+ memory_region_add_subregion_overlap(&s->container, NRF51_RNG_BASE, mr, 0);
+ sysbus_connect_irq(SYS_BUS_DEVICE(&s->rng), 0,
+ qdev_get_gpio_in(DEVICE(&s->cpu),
+ BASE_TO_IRQ(NRF51_RNG_BASE)));
+
create_unimplemented_device("nrf51_soc.io", NRF51_IOMEM_BASE,
NRF51_IOMEM_SIZE);
create_unimplemented_device("nrf51_soc.ficr", NRF51_FICR_BASE,
@@ -110,6 +123,9 @@ static void nrf51_soc_init(Object *obj)
TYPE_NRF51_UART);
object_property_add_alias(obj, "serial0", OBJECT(&s->uart), "chardev",
&error_abort);
+
+ sysbus_init_child_obj(obj, "rng", &s->rng, sizeof(s->rng),
+ TYPE_NRF51_RNG);
}
static Property nrf51_soc_properties[] = {
diff --git a/include/hw/arm/nrf51_soc.h b/include/hw/arm/nrf51_soc.h
index 73fc92e9a8..9e3ba916bd 100644
--- a/include/hw/arm/nrf51_soc.h
+++ b/include/hw/arm/nrf51_soc.h
@@ -13,6 +13,7 @@
#include "hw/sysbus.h"
#include "hw/arm/armv7m.h"
#include "hw/char/nrf51_uart.h"
+#include "hw/misc/nrf51_rng.h"
#define TYPE_NRF51_SOC "nrf51-soc"
#define NRF51_SOC(obj) \
@@ -26,6 +27,7 @@ typedef struct NRF51State {
ARMv7MState cpu;
NRF51UARTState uart;
+ NRF51RNGState rng;
MemoryRegion iomem;
MemoryRegion sram;
--
2.19.1
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