This is a simple port of AMD AM79C874 PHY from old fec driver
(arch/ppc/8xx_io) to PHY layer, previously sent to linuxppc-embedded mailing
list for review.
I don't have an AM79C874 based nic, so this email is also a request for
testing :)
--
Aristeu
Index: testing/drivers/net/phy/Kconfig
===================================================================
--- testing.orig/drivers/net/phy/Kconfig 2005-11-25 15:26:38.000000000
-0200
+++ testing/drivers/net/phy/Kconfig 2005-11-25 15:28:55.000000000 -0200
@@ -53,5 +53,11 @@
---help---
Currently supports the cis8204
+config AMD_PHY
+ tristate "Drivers for the AMD PHYs"
+ depends on PHYLIB
+ ---help---
+ Currenty supports AM79C874
+
endmenu
Index: testing/drivers/net/phy/Makefile
===================================================================
--- testing.orig/drivers/net/phy/Makefile 2005-11-25 15:26:38.000000000
-0200
+++ testing/drivers/net/phy/Makefile 2005-11-25 15:26:56.000000000 -0200
@@ -8,3 +8,5 @@
obj-$(CONFIG_CICADA_PHY) += cicada.o
obj-$(CONFIG_LXT_PHY) += lxt.o
obj-$(CONFIG_QSEMI_PHY) += qsemi.o
+obj-$(CONFIG_AMD_PHY) += amd.o
+
Index: testing/drivers/net/phy/amd.c
===================================================================
--- /dev/null 1970-01-01 00:00:00.000000000 +0000
+++ testing/drivers/net/phy/amd.c 2005-11-28 11:39:34.000000000 -0200
@@ -0,0 +1,71 @@
+#include <linux/config.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/version.h>
+#include <linux/mii.h>
+#include <linux/ethtool.h>
+#include <linux/phy.h>
+
+#include <asm/io.h>
+#include <asm/irq.h>
+#include <asm/uaccess.h>
+
+#define MII_AM79C874_MFR 16 /* Miscellaneous Features Register */
+#define MII_AM79C874_ICSR 17 /* Interrupt Control/Status Register */
+#define MII_AM79C874_DR 18 /* Diagnostic Register
*/
+#define MII_AM79C874_PMLR 19 /* Power Management & Loopback Register */
+#define MII_AM79C874_MCR 21 /* Mode Control Register */
+#define MII_AM79C874_DC 23 /* Disconnect Counter
*/
+#define MII_AM79C874_REC 24 /* Receiver Error Counter */
+
+static int am79c874_ack_interrupt(struct phy_device *phy)
+{
+ int err;
+
+ err = phy_read(phy, MII_AM79C874_ICSR);
+
+ if (err < 0)
+ return err;
+ return 0;
+}
+
+static int am79c874_config_intr(struct phy_device *phy)
+{
+ int err;
+
+ if (phy->interrupts == PHY_INTERRUPT_ENABLED)
+ err = phy_write(phy, MII_AM79C874_ICSR, 0xff00);
+ else
+ err = phy_write(phy, MII_AM79C874_ICSR, 0);
+
+ if (err < 0)
+ return err;
+
+ return 0;
+}
+
+static struct phy_driver am79c874 = {
+ .phy_id = 0x00022561,
+ .name = "AM79C874",
+ .phy_id_mask = 0x0fffffff,
+ .features = PHY_BASIC_FEATURES,
+ .flags = PHY_HAS_INTERRUPT,
+ .config_aneg = genphy_config_aneg,
+ .read_status = genphy_read_status,
+ .ack_interrupt = am79c874_ack_interrupt,
+ .config_intr = am79c874_config_intr,
+ .driver = { .owner = THIS_MODULE,},
+};
+
+static __init int am79c874_init(void)
+{
+ return phy_driver_register(&am79c874);
+}
+
+static __exit void am79c874_exit(void)
+{
+ phy_driver_unregister(&am79c874);
+}
+module_init(am79c874_init);
+module_exit(am79c874_exit);
+
