From: Robert Karszniewicz <r.karszniewicz@phytec.de>
To: barebox@lists.infradead.org
Subject: [PATCH] ARM: i.MX: OCOTP: read serial number with correct endianness
Date: Thu, 3 Dec 2020 16:40:50 +0100 [thread overview]
Message-ID: <1607010050-98351-1-git-send-email-r.karszniewicz@phytec.de> (raw)
The serial number is stored with the low bytes first, as can be seen in
Linux commit 8267ff89b713 ("ARM: imx: Add serial number support for
i.MX6/7 SoCs"). The same goes for i.MX8M.
Also renamed the macro to the more descriptive name from Linux.
Fixes: c4d9463d969b ("i.MX: Introduce imx_ocotp_read_uid()")
Signed-off-by: Robert Karszniewicz <r.karszniewicz@phytec.de>
---
arch/arm/mach-imx/include/mach/ocotp.h | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/arch/arm/mach-imx/include/mach/ocotp.h b/arch/arm/mach-imx/include/mach/ocotp.h
index 7ba5da156b76..20205c5da759 100644
--- a/arch/arm/mach-imx/include/mach/ocotp.h
+++ b/arch/arm/mach-imx/include/mach/ocotp.h
@@ -26,8 +26,8 @@
#define OCOTP_BIT(n) FIELD_PREP(OCOTP_BIT_MASK, n)
#define OCOTP_WIDTH(n) FIELD_PREP(OCOTP_WIDTH_MASK, (n) - 1)
-#define OCOTP_OFFSET_CFG0 0x410
-#define OCOTP_OFFSET_CFG1 0x420
+#define OCOTP_UID_L 0x410
+#define OCOTP_UID_H 0x420
int imx_ocotp_read_field(uint32_t field, unsigned *value);
@@ -39,9 +39,9 @@ static inline u64 imx_ocotp_read_uid(void __iomem *ocotp)
{
u64 uid;
- uid = readl(ocotp + OCOTP_OFFSET_CFG0);
+ uid = readl(ocotp + OCOTP_UID_H);
uid <<= 32;
- uid |= readl(ocotp + OCOTP_OFFSET_CFG1);
+ uid |= readl(ocotp + OCOTP_UID_L);
return uid;
}
--
2.7.4
_______________________________________________
barebox mailing list
barebox@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/barebox
next reply other threads:[~2020-12-03 15:40 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-12-03 15:40 Robert Karszniewicz [this message]
2020-12-07 7:37 ` Sascha Hauer
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1607010050-98351-1-git-send-email-r.karszniewicz@phytec.de \
--to=r.karszniewicz@phytec.de \
--cc=barebox@lists.infradead.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox