diff options
Diffstat (limited to 'hw')
| -rw-r--r-- | hw/arm/integratorcp.c | 2 | ||||
| -rw-r--r-- | hw/misc/Makefile.objs | 1 | ||||
| -rw-r--r-- | hw/misc/arm_integrator_debug.c | 99 |
3 files changed, 102 insertions, 0 deletions
diff --git a/hw/arm/integratorcp.c b/hw/arm/integratorcp.c index 2ef93ed8d6..c44b2a499c 100644 --- a/hw/arm/integratorcp.c +++ b/hw/arm/integratorcp.c @@ -11,6 +11,7 @@ #include "hw/devices.h" #include "hw/boards.h" #include "hw/arm/arm.h" +#include "hw/misc/arm_integrator_debug.h" #include "net/net.h" #include "exec/address-spaces.h" #include "sysemu/sysemu.h" @@ -508,6 +509,7 @@ static void integratorcp_init(QEMUMachineInitArgs *args) icp_control_init(0xcb000000); sysbus_create_simple("pl050_keyboard", 0x18000000, pic[3]); sysbus_create_simple("pl050_mouse", 0x19000000, pic[4]); + sysbus_create_simple(TYPE_INTEGRATOR_DEBUG, 0x1a000000, 0); sysbus_create_varargs("pl181", 0x1c000000, pic[23], pic[24], NULL); if (nd_table[0].used) smc91c111_init(&nd_table[0], 0xc8000000, pic[27]); diff --git a/hw/misc/Makefile.objs b/hw/misc/Makefile.objs index 2578e2939d..cca5c058cc 100644 --- a/hw/misc/Makefile.objs +++ b/hw/misc/Makefile.objs @@ -10,6 +10,7 @@ obj-$(CONFIG_VMPORT) += vmport.o # ARM devices common-obj-$(CONFIG_PL310) += arm_l2x0.o +common-obj-$(CONFIG_INTEGRATOR_DEBUG) += arm_integrator_debug.o # PKUnity SoC devices common-obj-$(CONFIG_PUV3) += puv3_pm.o diff --git a/hw/misc/arm_integrator_debug.c b/hw/misc/arm_integrator_debug.c new file mode 100644 index 0000000000..99b720fbb9 --- /dev/null +++ b/hw/misc/arm_integrator_debug.c @@ -0,0 +1,99 @@ +/* + * LED, Switch and Debug control registers for ARM Integrator Boards + * + * This is currently a stub for this functionality but at least + * ensures something other than unassigned_mem_read() handles access + * to this area. + * + * The real h/w is described at: + * http://infocenter.arm.com/help/index.jsp?topic=/com.arm.doc.dui0159b/Babbfijf.html + * + * Copyright (c) 2013 Alex Bennée <alex@bennee.com> + * + * This work is licensed under the terms of the GNU GPL, version 2 or later. + * See the COPYING file in the top-level directory. + */ + +#include "hw/hw.h" +#include "hw/sysbus.h" +#include "exec/address-spaces.h" +#include "hw/misc/arm_integrator_debug.h" + +#define INTEGRATOR_DEBUG(obj) \ + OBJECT_CHECK(IntegratorDebugState, (obj), TYPE_INTEGRATOR_DEBUG) + +typedef struct { + SysBusDevice parent_obj; + + MemoryRegion iomem; +} IntegratorDebugState; + +static uint64_t intdbg_control_read(void *opaque, hwaddr offset, + unsigned size) +{ + switch (offset >> 2) { + case 0: /* ALPHA */ + case 1: /* LEDS */ + case 2: /* SWITCHES */ + qemu_log_mask(LOG_UNIMP, + "%s: returning zero from %" HWADDR_PRIx ":%u\n", + __func__, offset, size); + return 0; + default: + qemu_log_mask(LOG_GUEST_ERROR, + "%s: Bad offset %" HWADDR_PRIx, + __func__, offset); + return 0; + } +} + +static void intdbg_control_write(void *opaque, hwaddr offset, + uint64_t value, unsigned size) +{ + switch (offset >> 2) { + case 1: /* ALPHA */ + case 2: /* LEDS */ + case 3: /* SWITCHES */ + /* Nothing interesting implemented yet. */ + qemu_log_mask(LOG_UNIMP, + "%s: ignoring write of %" PRIu64 + " to %" HWADDR_PRIx ":%u\n", + __func__, value, offset, size); + break; + default: + qemu_log_mask(LOG_GUEST_ERROR, + "%s: write of %" PRIu64 + " to bad offset %" HWADDR_PRIx "\n", + __func__, value, offset); + } +} + +static const MemoryRegionOps intdbg_control_ops = { + .read = intdbg_control_read, + .write = intdbg_control_write, + .endianness = DEVICE_NATIVE_ENDIAN, +}; + +static void intdbg_control_init(Object *obj) +{ + SysBusDevice *sd = SYS_BUS_DEVICE(obj); + IntegratorDebugState *s = INTEGRATOR_DEBUG(obj); + + memory_region_init_io(&s->iomem, NULL, &intdbg_control_ops, + NULL, "dbg-leds", 0x1000000); + sysbus_init_mmio(sd, &s->iomem); +} + +static const TypeInfo intdbg_info = { + .name = TYPE_INTEGRATOR_DEBUG, + .parent = TYPE_SYS_BUS_DEVICE, + .instance_size = sizeof(IntegratorDebugState), + .instance_init = intdbg_control_init, +}; + +static void intdbg_register_types(void) +{ + type_register_static(&intdbg_info); +} + +type_init(intdbg_register_types) |