From: Ramon Fried <ramon.fried@gmail.com>
To: u-boot@lists.denx.de
Subject: [U-Boot] [PATCH v1 2/3] snapdragon: added MAC generation functions
Date: Fri, 3 Aug 2018 16:25:36 +0300 [thread overview]
Message-ID: <20180803132537.1747-3-ramon.fried@gmail.com> (raw)
In-Reply-To: <20180803132537.1747-1-ramon.fried@gmail.com>
Add support for generation of unique MAC address
that is derived from board serial.
Algorithm for generation of MAC taken from LK.
Signed-off-by: Ramon Fried <ramon.fried@gmail.com>
---
arch/arm/mach-snapdragon/include/mach/misc.h | 1 +
arch/arm/mach-snapdragon/misc.c | 16 ++++++++++++++++
2 files changed, 17 insertions(+)
diff --git a/arch/arm/mach-snapdragon/include/mach/misc.h b/arch/arm/mach-snapdragon/include/mach/misc.h
index 5af6ae8da4..c60e3e4724 100644
--- a/arch/arm/mach-snapdragon/include/mach/misc.h
+++ b/arch/arm/mach-snapdragon/include/mach/misc.h
@@ -8,5 +8,6 @@
#define MISC_H
u32 msm_board_serial(void);
+void msm_generate_mac_addr(u8 *mac);
#endif
diff --git a/arch/arm/mach-snapdragon/misc.c b/arch/arm/mach-snapdragon/misc.c
index 678bd69f83..f6c87866c0 100644
--- a/arch/arm/mach-snapdragon/misc.c
+++ b/arch/arm/mach-snapdragon/misc.c
@@ -35,3 +35,19 @@ u32 msm_board_serial(void)
return UNSTUFF_BITS(mmc_dev->cid, 16, 32);
}
+
+void msm_generate_mac_addr(u8 *mac)
+{
+ int i;
+ char sn[9];
+
+ snprintf(sn, 8, "%08x", msm_board_serial());
+
+ /* fill in the mac with serialno, use locally adminstrated pool */
+ mac[0] = 0x02;
+ mac[1] = 00;
+ for (i = 3; i >= 0; i--) {
+ mac[i + 2] = simple_strtoul(&sn[2 * i], NULL, 16);
+ sn[2 * i] = 0;
+ }
+}
--
2.18.0
next prev parent reply other threads:[~2018-08-03 13:25 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-08-03 13:25 [U-Boot] [PATCH v1 0/3] Let U-Boot generate MAC address for db410 Ramon Fried
2018-08-03 13:25 ` [U-Boot] [PATCH v1 1/3] snapdragon: added msm_board_serial() func Ramon Fried
2018-08-13 23:57 ` [U-Boot] [U-Boot, v1, " Tom Rini
2018-08-03 13:25 ` Ramon Fried [this message]
2018-08-13 23:57 ` [U-Boot] [U-Boot, v1, 2/3] snapdragon: added MAC generation functions Tom Rini
2018-08-03 13:25 ` [U-Boot] [PATCH v1 3/3] db410: alter WLAN/BT MAC address fixup Ramon Fried
2018-08-13 23:57 ` [U-Boot] [U-Boot, v1, " Tom Rini
2018-08-13 23:57 ` Tom Rini
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=20180803132537.1747-3-ramon.fried@gmail.com \
--to=ramon.fried@gmail.com \
--cc=u-boot@lists.denx.de \
/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