Send this notification when U-Boot is about to boot into Linux, as requested by the FSP.
Signed-off-by: Simon Glass sjg@chromium.org ---
arch/x86/cpu/cpu.c | 15 +++++++++++++++ arch/x86/lib/fsp/fsp_common.c | 16 ++++++++++++++++ 2 files changed, 31 insertions(+)
diff --git a/arch/x86/cpu/cpu.c b/arch/x86/cpu/cpu.c index a2df92cec9..15c76ff3cb 100644 --- a/arch/x86/cpu/cpu.c +++ b/arch/x86/cpu/cpu.c @@ -182,6 +182,14 @@ __weak void board_final_init(void) { }
+/* + * 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; @@ -210,6 +218,13 @@ int last_stage_init(void) } #endif
+ /* + * 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 8a6108fb32..2eeb697ad7 100644 --- a/arch/x86/lib/fsp/fsp_common.c +++ b/arch/x86/lib/fsp/fsp_common.c @@ -58,6 +58,22 @@ void board_final_init(void) 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"); +} + #ifdef CONFIG_HAVE_ACPI_RESUME int fsp_save_s3_stack(void) {