Commit b39dced6 authored by Steffen Görtz's avatar Steffen Görtz Committed by Peter Maydell
Browse files

arm: Add Clock peripheral stub to NRF51 SOC 



This stubs enables the microbit-micropython firmware to run
on the microbit machine.

Signed-off-by: default avatarSteffen Görtz <contrib@steffen-goertz.de>
Reviewed-by: default avatarStefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: default avatarStefan Hajnoczi <stefanha@redhat.com>
Message-id: 20190103091119.9367-12-stefanha@redhat.com
Signed-off-by: default avatarPeter Maydell <peter.maydell@linaro.org>
parent 7ec543e4

hw/arm/nrf51_soc.c

+26 −0
Original line number Diff line number Diff line
@@ -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,

include/hw/arm/nrf51_soc.h

+1 −0
Original line number Diff line number Diff line
@@ -38,6 +38,7 @@ typedef struct NRF51State { 
    MemoryRegion iomem;

    MemoryRegion sram;

    MemoryRegion flash;

    MemoryRegion clock;



    uint32_t sram_size;

    uint32_t flash_size;