From patchwork Sun Apr 26 15:12:59 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Simon Glass X-Patchwork-Id: 238496 List-Id: U-Boot discussion From: sjg at chromium.org (Simon Glass) Date: Sun, 26 Apr 2020 09:12:59 -0600 Subject: [PATCH v4 7/9] x86: Add a way to detect running from coreboot In-Reply-To: <20200426151302.93418-1-sjg@chromium.org> References: <20200426151302.93418-1-sjg@chromium.org> Message-ID: <20200426151302.93418-7-sjg@chromium.org> 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 Reviewed-by: Bin Meng --- 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; }