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Message-Id: <1591742515-7108-1-git-send-email-Anson.Huang@nxp.com>
Date: Wed, 10 Jun 2020 06:41:55 +0800
From: Anson Huang <Anson.Huang@....com>
To: shawnguo@...nel.org, s.hauer@...gutronix.de, kernel@...gutronix.de,
festevam@...il.com, leonard.crestez@....com, abel.vesa@....com,
l.stach@...gutronix.de, peng.fan@....com,
linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Cc: Linux-imx@....com
Subject: [PATCH V2] soc: imx8m: Correct i.MX8MP UID fuse offset
Correct i.MX8MP UID fuse offset according to fuse map:
UID_LOW: 0x420
UID_HIGH: 0x430
Fixes: fc40200ebf82 ("soc: imx: increase build coverage for imx8m soc driver")
Signed-off-by: Anson Huang <Anson.Huang@....com>
---
Changes since V1:
- add fix tag.
---
drivers/soc/imx/soc-imx8m.c | 8 ++++++--
1 file changed, 6 insertions(+), 2 deletions(-)
diff --git a/drivers/soc/imx/soc-imx8m.c b/drivers/soc/imx/soc-imx8m.c
index 7b0759a..0bc8314 100644
--- a/drivers/soc/imx/soc-imx8m.c
+++ b/drivers/soc/imx/soc-imx8m.c
@@ -22,6 +22,8 @@
#define OCOTP_UID_LOW 0x410
#define OCOTP_UID_HIGH 0x420
+#define IMX8MP_OCOTP_UID_OFFSET 0x10
+
/* Same as ANADIG_DIGPROG_IMX7D */
#define ANADIG_DIGPROG_IMX8MM 0x800
@@ -87,6 +89,8 @@ static void __init imx8mm_soc_uid(void)
{
void __iomem *ocotp_base;
struct device_node *np;
+ u32 offset = of_machine_is_compatible("fsl,imx8mp") ?
+ IMX8MP_OCOTP_UID_OFFSET : 0;
np = of_find_compatible_node(NULL, NULL, "fsl,imx8mm-ocotp");
if (!np)
@@ -95,9 +99,9 @@ static void __init imx8mm_soc_uid(void)
ocotp_base = of_iomap(np, 0);
WARN_ON(!ocotp_base);
- soc_uid = readl_relaxed(ocotp_base + OCOTP_UID_HIGH);
+ soc_uid = readl_relaxed(ocotp_base + OCOTP_UID_HIGH + offset);
soc_uid <<= 32;
- soc_uid |= readl_relaxed(ocotp_base + OCOTP_UID_LOW);
+ soc_uid |= readl_relaxed(ocotp_base + OCOTP_UID_LOW + offset);
iounmap(ocotp_base);
of_node_put(np);
--
2.7.4
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