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[Qemu-arm] [PATCH v4 13/13] arm: Add Clock peripheral stub to NRF51 SOC
From: |
Steffen Görtz |
Subject: |
[Qemu-arm] [PATCH v4 13/13] arm: Add Clock peripheral stub to NRF51 SOC |
Date: |
Fri, 2 Nov 2018 13:07:30 -0400 |
This stubs enables the microbit-micropython firmware to run
on the microbit machine.
Signed-off-by: Steffen Görtz <address@hidden>
Reviewed-by: Stefan Hajnoczi <address@hidden>
---
hw/arm/nrf51_soc.c | 27 +++++++++++++++++++++++++++
include/hw/arm/nrf51_soc.h | 1 +
2 files changed, 28 insertions(+)
diff --git a/hw/arm/nrf51_soc.c b/hw/arm/nrf51_soc.c
index 36dac03896..ce8c61ae69 100644
--- a/hw/arm/nrf51_soc.c
+++ b/hw/arm/nrf51_soc.c
@@ -35,6 +35,26 @@
#define BASE_TO_IRQ(base) ((base >> 12) & 0x1F)
+static uint64_t clock_read(void *opaque, hwaddr addr, unsigned int size)
+{
+ qemu_log_mask(LOG_UNIMP, "%s: 0x%" HWADDR_PRIx " [%u]\n",
+ __func__, addr, size);
+ return 1;
+}
+
+static void clock_write(void *opaque, hwaddr addr, uint64_t data,
+ unsigned int size)
+{
+ qemu_log_mask(LOG_UNIMP, "%s: 0x%" HWADDR_PRIx " <- 0x%" PRIx64 " [%u]\n",
+ __func__, addr, data, size);
+}
+
+static const MemoryRegionOps clock_ops = {
+ .read = clock_read,
+ .write = clock_write
+};
+
+
static void nrf51_soc_realize(DeviceState *dev_soc, Error **errp)
{
NRF51State *s = NRF51_SOC(dev_soc);
@@ -159,6 +179,13 @@ static void nrf51_soc_realize(DeviceState *dev_soc, Error
**errp)
BASE_TO_IRQ(base_addr)));
}
+ /* STUB Peripherals */
+ memory_region_init_io(&s->clock, NULL, &clock_ops, NULL,
+ "nrf51_soc.clock", 0x1000);
+ memory_region_add_subregion_overlap(&s->container,
+ NRF51_IOMEM_BASE, &s->clock, -1);
+
+
create_unimplemented_device("nrf51_soc.io", NRF51_IOMEM_BASE,
NRF51_IOMEM_SIZE);
diff --git a/include/hw/arm/nrf51_soc.h b/include/hw/arm/nrf51_soc.h
index 89525dcb39..4610d0c7ae 100644
--- a/include/hw/arm/nrf51_soc.h
+++ b/include/hw/arm/nrf51_soc.h
@@ -40,6 +40,7 @@ typedef struct NRF51State {
MemoryRegion iomem;
MemoryRegion sram;
MemoryRegion flash;
+ MemoryRegion clock;
uint32_t sram_size;
uint32_t flash_size;
--
2.19.1
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