x86: fsp: Update the FSP API with the end-firmware method

This new method is intended to be called when UEFI shuts down the 'boot
services', i.e. any lingering code in the boot loader that might be used
by the OS.

Add a definition for this new method and update the comments a little.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>

diff --git a/arch/x86/include/asm/fsp/fsp_api.h b/arch/x86/include/asm/fsp/fsp_api.h
index 4941e2d..3a9b619 100644 (file)
--- a/arch/x86/include/asm/fsp/fsp_api.h
+++ b/arch/x86/include/asm/fsp/fsp_api.h
@@ -10,9 +10,18 @@
 
 enum fsp_phase {
        /* Notification code for post PCI enuermation */
-       INIT_PHASE_PCI  = 0x20,
-       /* Notification code before transferring control to the payload */
-       INIT_PHASE_BOOT = 0x40
+       INIT_PHASE_PCI          = 0x20,
+       /*
+        * Notification code before transferring control to the payload.
+        * This is issued at the end of init before starting main(), i.e.
+        * the command line / boot script.
+        */
+       INIT_PHASE_BOOT         = 0x40,
+       /*
+        * Notification code before existing boot services. This is issued
+        * just before removing devices and booting the kernel.
+        */
+       INIT_PHASE_END_FIRMWARE = 0xf0,
 };
 
 struct fsp_notify_params {