acpi: Add processor device
Add a new method to write the processor device identified by _HID
ACPI0007, that is preferred over the Processor OpCode since ACPI 6.0.
Fixes booting arm using ACPI only since the Processor OpCode isn't
found valid by the Linux kernel.
Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Cc: Simon Glass <sjg@chromium.org>
diff --git a/include/acpi/acpigen.h b/include/acpi/acpigen.h
index 3aa94d7..16df85b 100644
--- a/include/acpi/acpigen.h
+++ b/include/acpi/acpigen.h
@@ -833,6 +833,7 @@
*
* This emits a Processor package header with the required information. The
* caller must complete the information and call acpigen_pop_len() at the end
+ * Deprecated since ACPI 6.0.
*
* @ctx: ACPI context pointer
* @cpuindex: CPU number
@@ -843,6 +844,17 @@
u32 pblock_addr, uint pblock_len);
/**
+ * acpigen_write_processor_device() - Write a Processor device
+ *
+ * Write a device with _HID ACPI0007 identifying a processor.
+ * Replacement for the Processor OpCode.
+ *
+ * @ctx: ACPI context pointer
+ * @cpuindex: CPU number
+ */
+void acpigen_write_processor_device(struct acpi_ctx *ctx, uint cpuindex);
+
+/**
* acpigen_write_processor_package() - Write a package containing the processors
*
* The package containins the name of each processor in the SoC