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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>
This commit is contained in:
Steffen Görtz 2019-01-07 15:23:47 +00:00 committed by Peter Maydell
parent 7ec543e4b9
commit b39dced66a
2 changed files with 27 additions and 0 deletions
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26
hw/arm/nrf51_soc.c
View File

@ -34,6 +34,26 @@
#define BASE_TO_IRQ(base) ((base >> 12) & 0x1F) #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) static void nrf51_soc_realize(DeviceState *dev_soc, Error **errp)
{ {
NRF51State *s = NRF51_SOC(dev_soc); 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))); 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, create_unimplemented_device("nrf51_soc.io", NRF51_IOMEM_BASE,
NRF51_IOMEM_SIZE); NRF51_IOMEM_SIZE);
create_unimplemented_device("nrf51_soc.ficr", NRF51_FICR_BASE, create_unimplemented_device("nrf51_soc.ficr", NRF51_FICR_BASE,

1
include/hw/arm/nrf51_soc.h
View File

@ -38,6 +38,7 @@ typedef struct NRF51State {
MemoryRegion iomem; MemoryRegion iomem;
MemoryRegion sram; MemoryRegion sram;
MemoryRegion flash; MemoryRegion flash;
MemoryRegion clock;
uint32_t sram_size; uint32_t sram_size;
uint32_t flash_size; uint32_t flash_size;