From aeb1a36d65deaa3942b76ca0091cbd6c1f046737 Mon Sep 17 00:00:00 2001 From: Shannon Zhao Date: Thu, 17 Dec 2015 13:37:14 +0000 Subject: ARM: ACPI: Add GPIO controller in ACPI DSDT table Add GPIO controller in ACPI DSDT table. It can be used for gpio event. Signed-off-by: Shannon Zhao Signed-off-by: Shannon Zhao Tested-by: Wei Huang Message-id: 1449804086-3464-5-git-send-email-zhaoshenglong@huawei.com Reviewed-by: Igor Mammedov Signed-off-by: Peter Maydell --- hw/arm/virt-acpi-build.c | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) diff --git a/hw/arm/virt-acpi-build.c b/hw/arm/virt-acpi-build.c index 9123649e66..c9d67ccbd3 100644 --- a/hw/arm/virt-acpi-build.c +++ b/hw/arm/virt-acpi-build.c @@ -324,6 +324,23 @@ static void acpi_dsdt_add_pci(Aml *scope, const MemMapEntry *memmap, aml_append(scope, dev); } +static void acpi_dsdt_add_gpio(Aml *scope, const MemMapEntry *gpio_memmap, + uint32_t gpio_irq) +{ + Aml *dev = aml_device("GPO0"); + aml_append(dev, aml_name_decl("_HID", aml_string("ARMH0061"))); + aml_append(dev, aml_name_decl("_ADR", aml_int(0))); + aml_append(dev, aml_name_decl("_UID", aml_int(0))); + + Aml *crs = aml_resource_template(); + aml_append(crs, aml_memory32_fixed(gpio_memmap->base, gpio_memmap->size, + AML_READ_WRITE)); + aml_append(crs, aml_interrupt(AML_CONSUMER, AML_LEVEL, AML_ACTIVE_HIGH, + AML_EXCLUSIVE, &gpio_irq, 1)); + aml_append(dev, aml_name_decl("_CRS", crs)); + aml_append(scope, dev); +} + /* RSDP */ static GArray * build_rsdp(GArray *rsdp_table, GArray *linker, unsigned rsdt) @@ -540,6 +557,8 @@ build_dsdt(GArray *table_data, GArray *linker, VirtGuestInfo *guest_info) (irqmap[VIRT_MMIO] + ARM_SPI_BASE), NUM_VIRTIO_TRANSPORTS); acpi_dsdt_add_pci(scope, memmap, (irqmap[VIRT_PCIE] + ARM_SPI_BASE), guest_info->use_highmem); + acpi_dsdt_add_gpio(scope, &memmap[VIRT_GPIO], + (irqmap[VIRT_GPIO] + ARM_SPI_BASE)); aml_append(dsdt, scope); -- cgit v1.2.3