From: Anatolij Gustschin <agust@denx.de>
To: linuxppc-dev@ozlabs.org
Cc: Anatolij Gustschin <agust@denx.de>
Subject: [PATCH] powerpc: 85xx: Add PHY fixup to socrates board code
Date: Tue, 7 Apr 2009 16:19:48 +0200 [thread overview]
Message-ID: <1239113988-4579-1-git-send-email-agust@denx.de> (raw)
If the firmware missed to initialize the PHY correctly,
Linux may hang up on socrates while eth0/eth1 interface
startup (caused by continuous unacknowledged PHY interrupt).
This patch adds PHY fixup to socrates platform code to
ensure the PHY is pre-initialized correctly. It is needed
to be compatible with older firmware.
Signed-off-by: Anatolij Gustschin <agust@denx.de>
---
arch/powerpc/platforms/85xx/socrates.c | 18 ++++++++++++++++++
1 files changed, 18 insertions(+), 0 deletions(-)
diff --git a/arch/powerpc/platforms/85xx/socrates.c b/arch/powerpc/platforms/85xx/socrates.c
index d0e8443..2275a39 100644
--- a/arch/powerpc/platforms/85xx/socrates.c
+++ b/arch/powerpc/platforms/85xx/socrates.c
@@ -28,6 +28,7 @@
#include <linux/delay.h>
#include <linux/seq_file.h>
#include <linux/of_platform.h>
+#include <linux/phy.h>
#include <asm/system.h>
#include <asm/time.h>
@@ -78,6 +79,21 @@ static void __init socrates_pic_init(void)
of_node_put(np);
}
+static int socrates_m88e1121_fixup(struct phy_device *phydev)
+{
+ int err;
+
+ err = phy_write(phydev, 0x12, 0);
+ if (err < 0)
+ return err;
+
+ err = phy_read(phydev, 0x13);
+ if (err < 0)
+ return err;
+
+ return 0;
+}
+
/*
* Setup the architecture
*/
@@ -105,6 +121,8 @@ static struct of_device_id __initdata socrates_of_bus_ids[] = {
static void __init socrates_init(void)
{
of_platform_bus_probe(NULL, socrates_of_bus_ids, NULL);
+ phy_register_fixup_for_uid(0x1410cb0, 0xffffff0,
+ socrates_m88e1121_fixup);
}
/*
--
1.5.6.3
next reply other threads:[~2009-04-07 14:19 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-04-07 14:19 Anatolij Gustschin [this message]
2009-04-07 14:30 ` [PATCH] powerpc: 85xx: Add PHY fixup to socrates board code Anton Vorontsov
2009-04-07 17:24 ` Anatolij Gustschin
2009-04-07 18:09 ` Anton Vorontsov
2009-04-07 18:40 ` Anton Vorontsov
2009-04-21 17:19 ` [PATCH v2] " Anatolij Gustschin
2009-04-21 21:54 ` Kumar Gala
2009-04-21 22:04 ` Kumar Gala
2009-04-21 23:24 ` Anatolij Gustschin
2009-06-16 13:46 ` Kumar Gala
2009-06-23 10:15 ` Anatolij Gustschin
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