mirror of https://github.com/xemu-project/xemu.git
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>
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@ -34,6 +34,26 @@
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#define BASE_TO_IRQ(base) ((base >> 12) & 0x1F)
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static uint64_t clock_read(void *opaque, hwaddr addr, unsigned int size)
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{
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qemu_log_mask(LOG_UNIMP, "%s: 0x%" HWADDR_PRIx " [%u]\n",
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__func__, addr, size);
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return 1;
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}
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static void clock_write(void *opaque, hwaddr addr, uint64_t data,
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unsigned int size)
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{
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qemu_log_mask(LOG_UNIMP, "%s: 0x%" HWADDR_PRIx " <- 0x%" PRIx64 " [%u]\n",
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__func__, addr, data, size);
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}
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static const MemoryRegionOps clock_ops = {
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.read = clock_read,
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.write = clock_write
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};
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static void nrf51_soc_realize(DeviceState *dev_soc, Error **errp)
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{
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NRF51State *s = NRF51_SOC(dev_soc);
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@ -130,6 +150,12 @@ static void nrf51_soc_realize(DeviceState *dev_soc, Error **errp)
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BASE_TO_IRQ(base_addr)));
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}
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/* STUB Peripherals */
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memory_region_init_io(&s->clock, NULL, &clock_ops, NULL,
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"nrf51_soc.clock", 0x1000);
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memory_region_add_subregion_overlap(&s->container,
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NRF51_IOMEM_BASE, &s->clock, -1);
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create_unimplemented_device("nrf51_soc.io", NRF51_IOMEM_BASE,
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NRF51_IOMEM_SIZE);
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create_unimplemented_device("nrf51_soc.ficr", NRF51_FICR_BASE,
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@ -38,6 +38,7 @@ typedef struct NRF51State {
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MemoryRegion iomem;
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MemoryRegion sram;
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MemoryRegion flash;
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MemoryRegion clock;
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uint32_t sram_size;
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uint32_t flash_size;
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