diff options
Diffstat (limited to 'hw/mpcore.c')
-rw-r--r-- | hw/mpcore.c | 99 |
1 files changed, 1 insertions, 98 deletions
diff --git a/hw/mpcore.c b/hw/mpcore.c index eccb2e188d..b4db1914b7 100644 --- a/hw/mpcore.c +++ b/hw/mpcore.c @@ -1,5 +1,5 @@ /* - * ARM MPCore internal peripheral emulation. + * ARM MPCore internal peripheral emulation (common code). * * Copyright (c) 2006-2007 CodeSourcery. * Written by Paul Brook @@ -10,12 +10,7 @@ #include "sysbus.h" #include "qemu-timer.h" -#define MPCORE_PRIV_BASE 0x10100000 #define NCPU 4 -/* ??? The MPCore TRM says the on-chip controller has 224 external IRQ lines - (+ 32 internal). However my test chip only exposes/reports 32. - More importantly Linux falls over if more than 32 are present! */ -#define GIC_NIRQ 64 static inline int gic_get_current_cpu(void) @@ -288,95 +283,3 @@ static int mpcore_priv_init(SysBusDevice *dev) } return 0; } - -/* Dummy PIC to route IRQ lines. The baseboard has 4 independent IRQ - controllers. The output of these, plus some of the raw input lines - are fed into a single SMP-aware interrupt controller on the CPU. */ -typedef struct { - SysBusDevice busdev; - qemu_irq cpuic[32]; - qemu_irq rvic[4][64]; - uint32_t num_cpu; -} mpcore_rirq_state; - -/* Map baseboard IRQs onto CPU IRQ lines. */ -static const int mpcore_irq_map[32] = { - -1, -1, -1, -1, 1, 2, -1, -1, - -1, -1, 6, -1, 4, 5, -1, -1, - -1, 14, 15, 0, 7, 8, -1, -1, - -1, -1, -1, -1, 9, 3, -1, -1, -}; - -static void mpcore_rirq_set_irq(void *opaque, int irq, int level) -{ - mpcore_rirq_state *s = (mpcore_rirq_state *)opaque; - int i; - - for (i = 0; i < 4; i++) { - qemu_set_irq(s->rvic[i][irq], level); - } - if (irq < 32) { - irq = mpcore_irq_map[irq]; - if (irq >= 0) { - qemu_set_irq(s->cpuic[irq], level); - } - } -} - -static int realview_mpcore_init(SysBusDevice *dev) -{ - mpcore_rirq_state *s = FROM_SYSBUS(mpcore_rirq_state, dev); - DeviceState *gic; - DeviceState *priv; - SysBusDevice *bus_priv; - int n; - int i; - - priv = qdev_create(NULL, "arm11mpcore_priv"); - qdev_prop_set_uint32(priv, "num-cpu", s->num_cpu); - qdev_init_nofail(priv); - bus_priv = sysbus_from_qdev(priv); - sysbus_mmio_map(bus_priv, 0, MPCORE_PRIV_BASE); - sysbus_pass_irq(dev, bus_priv); - for (i = 0; i < 32; i++) { - s->cpuic[i] = qdev_get_gpio_in(priv, i); - } - /* ??? IRQ routing is hardcoded to "normal" mode. */ - for (n = 0; n < 4; n++) { - gic = sysbus_create_simple("realview_gic", 0x10040000 + n * 0x10000, - s->cpuic[10 + n]); - for (i = 0; i < 64; i++) { - s->rvic[n][i] = qdev_get_gpio_in(gic, i); - } - } - qdev_init_gpio_in(&dev->qdev, mpcore_rirq_set_irq, 64); - return 0; -} - -static SysBusDeviceInfo mpcore_rirq_info = { - .init = realview_mpcore_init, - .qdev.name = "realview_mpcore", - .qdev.size = sizeof(mpcore_rirq_state), - .qdev.props = (Property[]) { - DEFINE_PROP_UINT32("num-cpu", mpcore_rirq_state, num_cpu, 1), - DEFINE_PROP_END_OF_LIST(), - } -}; - -static SysBusDeviceInfo mpcore_priv_info = { - .init = mpcore_priv_init, - .qdev.name = "arm11mpcore_priv", - .qdev.size = sizeof(mpcore_priv_state), - .qdev.props = (Property[]) { - DEFINE_PROP_UINT32("num-cpu", mpcore_priv_state, num_cpu, 1), - DEFINE_PROP_END_OF_LIST(), - } -}; - -static void mpcore_register_devices(void) -{ - sysbus_register_withprop(&mpcore_rirq_info); - sysbus_register_withprop(&mpcore_priv_info); -} - -device_init(mpcore_register_devices) |