x86: Notify the FSP of the 'end firmware' event
Send this notification when U-Boot is about to boot into Linux, as
requested by the FSP.
Currently this causes a crash with the APL FSP, so leave it disabled for
now.
Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/arch/x86/cpu/cpu.c b/arch/x86/cpu/cpu.c
index 69c1418..f869275 100644
--- a/arch/x86/cpu/cpu.c
+++ b/arch/x86/cpu/cpu.c
@@ -189,6 +189,14 @@
{
}
+/*
+ * Implement a weak default function for boards that need to do some final
+ * processing before booting the OS.
+ */
+__weak void board_final_cleanup(void)
+{
+}
+
int last_stage_init(void)
{
struct acpi_fadt __maybe_unused *fadt;
@@ -218,6 +226,13 @@
}
}
+ /*
+ * TODO(sjg@chromium.org): Move this to bootm_announce_and_cleanup()
+ * once APL FSP-S at 0x200000 does not overlap with the bzimage at
+ * 0x100000.
+ */
+ board_final_cleanup();
+
return 0;
}
#endif
diff --git a/arch/x86/lib/fsp/fsp_common.c b/arch/x86/lib/fsp/fsp_common.c
index ea52954..4061fa2 100644
--- a/arch/x86/lib/fsp/fsp_common.c
+++ b/arch/x86/lib/fsp/fsp_common.c
@@ -60,6 +60,22 @@
debug("OK\n");
}
+void board_final_cleanup(void)
+{
+ u32 status;
+
+ /* TODO(sjg@chromium.org): This causes Linux to crash */
+ return;
+
+ /* call into FspNotify */
+ debug("Calling into FSP (notify phase INIT_PHASE_END_FIRMWARE): ");
+ status = fsp_notify(NULL, INIT_PHASE_END_FIRMWARE);
+ if (status)
+ debug("fail, error code %x\n", status);
+ else
+ debug("OK\n");
+}
+
int fsp_save_s3_stack(void)
{
struct udevice *dev;