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authorSteffen Görtz <contrib@steffen-goertz.de>2019-01-07 15:23:47 +0000
committerPeter Maydell <peter.maydell@linaro.org>2019-01-07 15:23:47 +0000
commitb39dced66ac2612e89c9c822b6cb7b63c0de7f43 (patch)
treed361fd6fda67ca16f150ef3efa9984f81ba20344
parent7ec543e4b9d3113f0f7afa49a474d7098abe29f0 (diff)
downloadqemu-arm-b39dced66ac2612e89c9c822b6cb7b63c0de7f43.tar.gz
arm: Add Clock peripheral stub to NRF51 SOC
This stubs enables the microbit-micropython firmware to run on the microbit machine. Signed-off-by: Steffen Görtz <contrib@steffen-goertz.de> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Message-id: 20190103091119.9367-12-stefanha@redhat.com Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
-rw-r--r--hw/arm/nrf51_soc.c26
-rw-r--r--include/hw/arm/nrf51_soc.h1
2 files changed, 27 insertions, 0 deletions
diff --git a/hw/arm/nrf51_soc.c b/hw/arm/nrf51_soc.c
index ef70bd62fa..1630c27594 100644
--- a/hw/arm/nrf51_soc.c
+++ b/hw/arm/nrf51_soc.c
@@ -34,6 +34,26 @@
#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);
@@ -130,6 +150,12 @@ 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);
create_unimplemented_device("nrf51_soc.ficr", NRF51_FICR_BASE,
diff --git a/include/hw/arm/nrf51_soc.h b/include/hw/arm/nrf51_soc.h
index 39e613e1c9..e06f0304b4 100644
--- a/include/hw/arm/nrf51_soc.h
+++ b/include/hw/arm/nrf51_soc.h
@@ -38,6 +38,7 @@ typedef struct NRF51State {
MemoryRegion iomem;
MemoryRegion sram;
MemoryRegion flash;
+ MemoryRegion clock;
uint32_t sram_size;
uint32_t flash_size;