[PATCH v4 7/9] x86: Add a way to detect running from coreboot

Simon Glass sjg at chromium.org
Sun Apr 26 17:12:59 CEST 2020


If U-Boot is running from coreboot we need to skip low-level init. Add
an way to detect this and to set the gd flag.

Signed-off-by: Simon Glass <sjg at chromium.org>
---

Changes in v4:
- Rename flag to GD_FLG_SKIP_LL_INIT
- Split this patch into two

Changes in v3:
- Add new patch to detect running from coreboot

Changes in v2: None

 arch/x86/cpu/i386/cpu.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/x86/cpu/i386/cpu.c b/arch/x86/cpu/i386/cpu.c
index e52fd686d9..8a458bb5ff 100644
--- a/arch/x86/cpu/i386/cpu.c
+++ b/arch/x86/cpu/i386/cpu.c
@@ -476,6 +476,8 @@ int x86_cpu_reinit_f(void)
 {
 	setup_identity();
 	setup_pci_ram_top();
+	if (locate_coreboot_table() >= 0)
+		gd->flags |= GD_FLG_SKIP_LL_INIT;
 
 	return 0;
 }
-- 
2.26.2.303.gf8c07b1a785-goog



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