From: Frank Li <Frank.Li@nxp.com>
Date: Mon, 19 Mar 2018 08:10:44 +0000 (-0500)
Subject: arm64: qxp: support read chip unique id
X-Git-Tag: C0P2-H0.0--20200415~186
X-Git-Url: https://git.somdevices.com/?a=commitdiff_plain;h=b46671d350a947fd2cf92a229f6e70d921a8e218;p=linux.git

arm64: qxp: support read chip unique id

call scfw api get chip unique id

cat /sys/devices/soc0/soc_uid
A264080B57AC1898

Signed-off-by: Frank Li <Frank.Li@nxp.com>
---

diff --git a/drivers/soc/imx/soc-imx8.c b/drivers/soc/imx/soc-imx8.c
index 941945e912f0..65b6f67fb84d 100644
--- a/drivers/soc/imx/soc-imx8.c
+++ b/drivers/soc/imx/soc-imx8.c
@@ -103,6 +103,7 @@ static u32 imx_init_revision_from_scu(void)
 	sc_err_t sc_err = SC_ERR_NONE;
 	sc_ipc_t ipc_handle;
 	u32 id, rev;
+	u32 uid_l = 0, uid_h = 0;
 
 	sc_err = sc_ipc_getMuID(&mu_id);
 	if (sc_err != SC_ERR_NONE) {
@@ -132,6 +133,12 @@ static u32 imx_init_revision_from_scu(void)
 	imx8_set_soc_id(id);
 	imx8_set_soc_revision(rev);
 
+	sc_misc_unique_id(ipc_handle, &uid_l, &uid_h);
+
+	imx8_soc_uid = uid_h;
+	imx8_soc_uid <<= 32;
+	imx8_soc_uid |= uid_l;
+
 	return rev;
 }
 
@@ -251,7 +258,7 @@ static ssize_t imx8_get_soc_uid(struct device *dev,
 			struct device_attribute *attr,
 			char *buf)
 {
-	return sprintf(buf, "%016llx\n", imx8_soc_uid);
+	return sprintf(buf, "%016llX\n", imx8_soc_uid);
 }
 
 static struct device_attribute imx8_uid =