diff options
| author | Alexander Graf <agraf@suse.de> | 2014-10-01 16:05:47 +0200 |
|---|---|---|
| committer | Alexander Graf <agraf@suse.de> | 2014-11-04 23:26:13 +0100 |
| commit | 016f7758985290c8ca79fc9842fd697d61cbc0b0 (patch) | |
| tree | 3124c8ea7d0fd6c271ea1ec7a480e4cb9cd15980 /hw/ppc/e500.c | |
| parent | b88e77f49331f1187118b7ce2494ec169d3a865a (diff) | |
PPC: E500: Hook up power off GPIO to GPIO controller
Now that we have a working GPIO controller on the virt machine, we can use
one pin to notify QEMU that the guests wants to power off the system.
Signed-off-by: Alexander Graf <agraf@suse.de>
Diffstat (limited to 'hw/ppc/e500.c')
| -rw-r--r-- | hw/ppc/e500.c | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/hw/ppc/e500.c b/hw/ppc/e500.c index 304c124ffd..cfc46c4401 100644 --- a/hw/ppc/e500.c +++ b/hw/ppc/e500.c @@ -129,6 +129,8 @@ static void create_dt_mpc8xxx_gpio(void *fdt, const char *soc, const char *mpic) hwaddr mmio0 = MPC8XXX_GPIO_OFFSET; int irq0 = MPC8XXX_GPIO_IRQ; gchar *node = g_strdup_printf("%s/gpio@%"PRIx64, soc, mmio0); + gchar *poweroff = g_strdup_printf("%s/power-off", soc); + int gpio_ph; qemu_fdt_add_subnode(fdt, node); qemu_fdt_setprop_string(fdt, node, "compatible", "fsl,qoriq-gpio"); @@ -137,8 +139,17 @@ static void create_dt_mpc8xxx_gpio(void *fdt, const char *soc, const char *mpic) qemu_fdt_setprop_phandle(fdt, node, "interrupt-parent", mpic); qemu_fdt_setprop_cells(fdt, node, "#gpio-cells", 2); qemu_fdt_setprop(fdt, node, "gpio-controller", NULL, 0); + gpio_ph = qemu_fdt_alloc_phandle(fdt); + qemu_fdt_setprop_cell(fdt, node, "phandle", gpio_ph); + qemu_fdt_setprop_cell(fdt, node, "linux,phandle", gpio_ph); + + /* Power Off Pin */ + qemu_fdt_add_subnode(fdt, poweroff); + qemu_fdt_setprop_string(fdt, poweroff, "compatible", "gpio-poweroff"); + qemu_fdt_setprop_cells(fdt, poweroff, "gpios", gpio_ph, 0, 0); g_free(node); + g_free(poweroff); } static int ppce500_load_device_tree(MachineState *machine, @@ -641,6 +652,13 @@ static qemu_irq *ppce500_init_mpic(PPCE500Params *params, MemoryRegion *ccsr, return mpic; } +static void ppce500_power_off(void *opaque, int line, int on) +{ + if (on) { + qemu_system_shutdown_request(); + } +} + void ppce500_init(MachineState *machine, PPCE500Params *params) { MemoryRegion *address_space_mem = get_system_memory(); @@ -793,12 +811,18 @@ void ppce500_init(MachineState *machine, PPCE500Params *params) } if (params->has_mpc8xxx_gpio) { + qemu_irq poweroff_irq; + dev = qdev_create(NULL, "mpc8xxx_gpio"); s = SYS_BUS_DEVICE(dev); qdev_init_nofail(dev); sysbus_connect_irq(s, 0, mpic[MPC8XXX_GPIO_IRQ]); memory_region_add_subregion(ccsr_addr_space, MPC8XXX_GPIO_OFFSET, sysbus_mmio_get_region(s, 0)); + + /* Power Off GPIO at Pin 0 */ + poweroff_irq = qemu_allocate_irq(ppce500_power_off, NULL, 0); + qdev_connect_gpio_out(dev, 0, poweroff_irq); } /* Load kernel. */ |