From: Peng Fan <peng.fan@nxp.com>
Date: Wed, 22 Apr 2020 02:51:13 +0000 (+0800)
Subject: imx8m: acquire ATF commit hash
X-Git-Tag: v2020.07-rc2~15^2~51
X-Git-Url: https://git.librecmc.org/?a=commitdiff_plain;h=a07bcec403a22f6b848cff06c8094f1da7bc23e1;p=oweals%2Fu-boot.git

imx8m: acquire ATF commit hash

Acquire ATF commit hash when booting U-Boot to make user easy
to know the ATF version.

Reviewed-by: Fabio Estevam <festevam@gmail.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
---

diff --git a/arch/arm/mach-imx/imx8m/soc.c b/arch/arm/mach-imx/imx8m/soc.c
index 871179509c..8b6be7bc19 100644
--- a/arch/arm/mach-imx/imx8m/soc.c
+++ b/arch/arm/mach-imx/imx8m/soc.c
@@ -425,3 +425,27 @@ void reset_cpu(ulong addr)
        }
 }
 #endif
+
+#if defined(CONFIG_ARCH_MISC_INIT)
+static void acquire_buildinfo(void)
+{
+	u64 atf_commit = 0;
+
+	/* Get ARM Trusted Firmware commit id */
+	atf_commit = call_imx_sip(IMX_SIP_BUILDINFO,
+				  IMX_SIP_BUILDINFO_GET_COMMITHASH, 0, 0, 0);
+	if (atf_commit == 0xffffffff) {
+		debug("ATF does not support build info\n");
+		atf_commit = 0x30; /* Display 0, 0 ascii is 0x30 */
+	}
+
+	printf("\n BuildInfo:\n  - ATF %s\n\n", (char *)&atf_commit);
+}
+
+int arch_misc_init(void)
+{
+	acquire_buildinfo();
+
+	return 0;
+}
+#endif