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Diffstat (limited to 'hw/arm/virt.c')
-rw-r--r--hw/arm/virt.c30
1 files changed, 30 insertions, 0 deletions
diff --git a/hw/arm/virt.c b/hw/arm/virt.c
index 9c6792cea1..7977e3ce14 100644
--- a/hw/arm/virt.c
+++ b/hw/arm/virt.c
@@ -120,6 +120,7 @@ static const MemMapEntry a15memmap[] = {
[VIRT_UART] = { 0x09000000, 0x00001000 },
[VIRT_RTC] = { 0x09010000, 0x00001000 },
[VIRT_FW_CFG] = { 0x09020000, 0x00000018 },
+ [VIRT_GPIO] = { 0x09030000, 0x00001000 },
[VIRT_MMIO] = { 0x0a000000, 0x00000200 },
/* ...repeating for a total of NUM_VIRTIO_TRANSPORTS, each of that size */
[VIRT_PLATFORM_BUS] = { 0x0c000000, 0x02000000 },
@@ -135,6 +136,7 @@ static const int a15irqmap[] = {
[VIRT_UART] = 1,
[VIRT_RTC] = 2,
[VIRT_PCIE] = 3, /* ... to 6 */
+ [VIRT_GPIO] = 7,
[VIRT_MMIO] = 16, /* ...to 16 + NUM_VIRTIO_TRANSPORTS - 1 */
[VIRT_GIC_V2M] = 48, /* ...to 48 + NUM_GICV2M_SPIS - 1 */
[VIRT_PLATFORM_BUS] = 112, /* ...to 112 + PLATFORM_BUS_NUM_IRQS -1 */
@@ -538,6 +540,32 @@ static void create_rtc(const VirtBoardInfo *vbi, qemu_irq *pic)
g_free(nodename);
}
+static void create_gpio(const VirtBoardInfo *vbi, qemu_irq *pic)
+{
+ char *nodename;
+ hwaddr base = vbi->memmap[VIRT_GPIO].base;
+ hwaddr size = vbi->memmap[VIRT_GPIO].size;
+ int irq = vbi->irqmap[VIRT_GPIO];
+ const char compat[] = "arm,pl061\0arm,primecell";
+
+ sysbus_create_simple("pl061", base, pic[irq]);
+
+ nodename = g_strdup_printf("/pl061@%" PRIx64, base);
+ qemu_fdt_add_subnode(vbi->fdt, nodename);
+ qemu_fdt_setprop_sized_cells(vbi->fdt, nodename, "reg",
+ 2, base, 2, size);
+ qemu_fdt_setprop(vbi->fdt, nodename, "compatible", compat, sizeof(compat));
+ qemu_fdt_setprop_cell(vbi->fdt, nodename, "#gpio-cells", 2);
+ qemu_fdt_setprop(vbi->fdt, nodename, "gpio-controller", NULL, 0);
+ qemu_fdt_setprop_cells(vbi->fdt, nodename, "interrupts",
+ GIC_FDT_IRQ_TYPE_SPI, irq,
+ GIC_FDT_IRQ_FLAGS_LEVEL_HI);
+ qemu_fdt_setprop_cell(vbi->fdt, nodename, "clocks", vbi->clock_phandle);
+ qemu_fdt_setprop_string(vbi->fdt, nodename, "clock-names", "apb_pclk");
+
+ g_free(nodename);
+}
+
static void create_virtio_devices(const VirtBoardInfo *vbi, qemu_irq *pic)
{
int i;
@@ -1041,6 +1069,8 @@ static void machvirt_init(MachineState *machine)
create_pcie(vbi, pic, vms->highmem);
+ create_gpio(vbi, pic);
+
/* Create mmio transports, so the user can create virtio backends
* (which will be automatically plugged in to the transports). If
* no backend is created the transport will just sit harmlessly idle.