From: Martin Michlmayr <tbm@cyrius.com>
To: linux-kernel@vger.kernel.org, netdev@vger.kernel.org
Cc: John Bowler <jbowler@acm.org>
Subject: [RFC] [PATCH 2/2] Driver to remember ethernet MAC values: NSLU2 support
Date: Mon, 20 Feb 2006 01:01:57 +0000 [thread overview]
Message-ID: <20060220010157.GA19342@deprecation.cyrius.com> (raw)
From: John Bowler <jbowler@acm.org>
Implement maclist support for the Linksys NSLU2. The MAC address is read
from the RedBoot partition in flash.
Signed-off-by: John Bowler <jbowler@acm.org>
Signed-off-by: Martin Michlmayr <tbm@cyrius.com>
Signed-off-by: Alessandro Zummo <a.zummo@towertech.it>
Signed-off-by: Rod Whitby <rod@whitby.id.au>
--
arch/arm/mach-ixp4xx/Kconfig | 4 +--
arch/arm/mach-ixp4xx/nslu2-setup.c | 39 +++++++++++++++++++++++++++++++++++++
2 files changed, 41 insertions(+), 2 deletions(-)
--- linux-nslu2.orig/arch/arm/mach-ixp4xx/nslu2-setup.c 2006-02-06 22:34:55.000000000 +0100
+++ linux-nslu2/arch/arm/mach-ixp4xx/nslu2-setup.c 2006-02-06 22:35:31.000000000 +0100
@@ -16,11 +16,14 @@
#include <linux/kernel.h>
#include <linux/serial.h>
#include <linux/serial_8250.h>
+#include <linux/mtd/mtd.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <asm/mach/flash.h>
+#include <net/maclist.h>
+
static struct flash_platform_data nslu2_flash_data = {
.map_name = "cfi_probe",
.width = 2,
@@ -117,6 +120,37 @@ static void nslu2_power_off(void)
gpio_line_set(NSLU2_PO_GPIO, IXP4XX_GPIO_HIGH);
}
+/*
+ * When the RedBoot partition is added the MAC address is read from
+ * it.
+ */
+static void nslu2_flash_add(struct mtd_info *mtd) {
+ if (strcmp(mtd->name, "RedBoot") == 0) {
+ size_t retlen;
+ u_char mac[6];
+
+ /* The MAC is at a known offset... */
+ if (mtd->read(mtd, 0x3FFB0, 6, &retlen, mac) == 0 && retlen == 6) {
+ printk(KERN_INFO "NSLU2 MAC: %.2x:%.2x:%.2x:%.2x:%.2x:%.2x\n",
+ mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
+ maclist_add(mac);
+ } else {
+ printk(KERN_ERR "NSLU2 MAC: read failed\n");
+ }
+ }
+}
+
+/*
+ * Nothing to do on remove at present.
+ */
+static void nslu2_flash_remove(struct mtd_info *mtd) {
+}
+
+static struct mtd_notifier nslu2_flash_notifier = {
+ .add = nslu2_flash_add,
+ .remove = nslu2_flash_remove,
+};
+
static void __init nslu2_init(void)
{
/* The NSLU2 has a 33MHz crystal on board - 1.01% different
@@ -124,6 +158,11 @@ static void __init nslu2_init(void)
*/
ixp4xx_set_board_tick_rate(66000000);
+ /* The flash has an ethernet MAC embedded in it which we need,
+ * that is all this notifier does.
+ */
+ register_mtd_user(&nslu2_flash_notifier);
+
ixp4xx_sys_init();
pm_power_off = nslu2_power_off;
--
Martin Michlmayr
http://www.cyrius.com/
reply other threads:[~2006-02-20 1:01 UTC|newest]
Thread overview: [no followups] expand[flat|nested] mbox.gz Atom feed
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=20060220010157.GA19342@deprecation.cyrius.com \
--to=tbm@cyrius.com \
--cc=jbowler@acm.org \
--cc=linux-kernel@vger.kernel.org \
--cc=netdev@vger.kernel.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;
as well as URLs for NNTP newsgroup(s).