From 25573e1de56021a01d74ecfe1bf312f57535d411 Mon Sep 17 00:00:00 2001 From: Frank Li Date: Mon, 19 Mar 2018 03:10:44 -0500 Subject: [PATCH] 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 --- drivers/soc/imx/soc-imx8.c | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) 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 =