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Re: KSZ8041 support - ethernet phy device from micrel
- From: Andrew Lunn <andrew at lunn dot ch>
- To: "oliver munz @ s p e a g" <munz at speag dot ch>
- Cc: ecos-patches at sourceware dot org
- Date: Tue, 28 Oct 2008 09:59:30 +0100
- Subject: Re: KSZ8041 support - ethernet phy device from micrel
- References: <4903854F.4030305@speag.ch>
Hi Oliver
Your emailer mangled the new file. So i re-indented it. I found it is
best to use attachments with most emails, that stops them modifying
the text.
Attached is what i actually committed.
Thanks
Andrew
Index: devs/eth/phy/current/ChangeLog
===================================================================
RCS file: /cvs/ecos/ecos/packages/devs/eth/phy/current/ChangeLog,v
retrieving revision 1.12
diff -u -r1.12 ChangeLog
--- devs/eth/phy/current/ChangeLog 11 Sep 2008 17:55:24 -0000 1.12
+++ devs/eth/phy/current/ChangeLog 28 Oct 2008 08:56:59 -0000
@@ -1,3 +1,8 @@
+2008-10-28 Oliver Munz <munz@speag.ch>
+
+ * cdl/phy_eth_drivers.cdl:
+ * src/KSZ8041.c: Add support for Micrel KSZ8041 PHY
+
2008-08-05 Uwe Kindler <uwe_kindler@web.de>
* cdl/phy_eth_drivers.cdl:
Index: devs/eth/phy/current/cdl/phy_eth_drivers.cdl
===================================================================
RCS file: /cvs/ecos/ecos/packages/devs/eth/phy/current/cdl/phy_eth_drivers.cdl,v
retrieving revision 1.9
diff -u -r1.9 phy_eth_drivers.cdl
--- devs/eth/phy/current/cdl/phy_eth_drivers.cdl 11 Sep 2008 17:55:24 -0000 1.9
+++ devs/eth/phy/current/cdl/phy_eth_drivers.cdl 28 Oct 2008 08:56:59 -0000
@@ -159,4 +159,13 @@
Include support for the Micrel KSZ8001 PHY"
}
+ cdl_option CYGHWR_DEVS_ETH_PHY_KSZ8041 {
+ display "Micrel KSZ8041"
+ flavor bool
+ default_value 0
+ compile -library=libextras.a KSZ8041.c
+ description "
+ Include support for the Micrel KSZ8041 PHY"
+ }
+
}
Index: devs/eth/phy/current/src/KSZ8041.c
===================================================================
RCS file: devs/eth/phy/current/src/KSZ8041.c
diff -N devs/eth/phy/current/src/KSZ8041.c
--- /dev/null 1 Jan 1970 00:00:00 -0000
+++ devs/eth/phy/current/src/KSZ8041.c 28 Oct 2008 08:56:59 -0000
@@ -0,0 +1,185 @@
+//==========================================================================
+//
+// dev/KSZ8041.c
+//
+// Ethernet transceiver (PHY) support for Micrel KSZ8041
+//
+//==========================================================================
+//####ECOSGPLCOPYRIGHTBEGIN####
+// -------------------------------------------
+// This file is part of eCos, the Embedded Configurable Operating System.
+// Copyright (C) 2008 Free Software Foundation, Inc.
+//
+// eCos is free software; you can redistribute it and/or modify it under
+// the terms of the GNU General Public License as published by the Free
+// Software Foundation; either version 2 or (at your option) any later version.
+//
+// eCos is distributed in the hope that it will be useful, but WITHOUT ANY
+// WARRANTY; without even the implied warranty of MERCHANTABILITY or
+// FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+// for more details.
+//
+// You should have received a copy of the GNU General Public License along
+// with eCos; if not, write to the Free Software Foundation, Inc.,
+// 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+//
+// As a special exception, if other files instantiate templates or use macros
+// or inline functions from this file, or you compile this file and link it
+// with other works to produce a work based on this file, this file does not
+// by itself cause the resulting work to be covered by the GNU General Public
+// License. However the source code for this file must still be made available
+// in accordance with section (3) of the GNU General Public License.
+//
+// This exception does not invalidate any other reasons why a work based on
+// this file might be covered by the GNU General Public License.
+// -------------------------------------------
+//####ECOSGPLCOPYRIGHTEND####
+//==========================================================================
+//#####DESCRIPTIONBEGIN####
+//
+// Author(s): Uwe Kindler <uwe_kindler@web.de>
+// Contributors: oli@snr.ch
+// Date: 2008-09-18
+// Purpose:
+// Description: Support for ethernet PHY Micrel KSZ8041
+//
+//
+//####DESCRIPTIONEND####
+//
+//==========================================================================
+
+
+//==========================================================================
+// INCLUDES
+//==========================================================================
+#include <pkgconf/system.h>
+#include <pkgconf/devs_eth_phy.h>
+
+#include <cyg/infra/cyg_type.h>
+
+#include <cyg/hal/hal_arch.h>
+#include <cyg/hal/drv_api.h>
+#include <cyg/hal/hal_if.h>
+#include <cyg/hal/hal_tables.h>
+
+#include <cyg/io/eth_phy.h>
+#include <cyg/io/eth_phy_dev.h>
+
+
+//==========================================================================
+// DEFINES
+//==========================================================================
+// 100BASE-TX PHY Control Register
+#define PHY_100BASE_CTRL 0x1f
+
+#define PHY_100BASE_CTRL_OP_MODE_MASK (0x07 << 2)
+#define PHY_100BASE_CTRL_AN_MODE (0x00 << 2)
+#define PHY_100BASE_CTRL_10T_HDX (0x01 << 2)
+#define PHY_100BASE_CTRL_100T_HDX (0x02 << 2)
+#define PHY_100BASE_CTRL_DEFAULT (0x03 << 2)
+#define PHY_100BASE_CTRL_10T_FDX (0x05 << 2)
+#define PHY_100BASE_CTRL_100T_FDX (0x06 << 2)
+
+//==========================================================================
+// Query the 100BASE-TX PHY Control Register and return a status bitmap
+// indicating the state of the physical connection
+//==========================================================================
+
+#ifdef CYGDBG_DEVS_ETH_PHY
+void
+ksz8041_diag (eth_phy_access_t * f)
+{
+
+ cyg_uint32 i;
+ cyg_uint16 reg;
+
+ eth_phy_printf ("KSZ8041 MIIM Register setings:\n");
+
+ for (i = 0; i < 0x20; i++) {
+ if (i % 2 == 0) {
+ _eth_phy_read (f, i, f->phy_addr, ®);
+ eth_phy_printf ("r%02x: %04x ", i, reg);
+ } else {
+ _eth_phy_read (f, i, f->phy_addr, ®);
+ eth_phy_printf ("%04x\n", reg);
+ }
+ }
+}
+#endif
+
+static bool
+ksz8041_stat (eth_phy_access_t * f, int *state)
+{
+
+ cyg_uint16 phy_state;
+ cyg_uint16 phy_100ctrl_reg;
+ cyg_uint32 tries;
+ cyg_uint32 ms;
+
+#ifdef CYGDBG_DEVS_ETH_PHY
+ ksz8041_diag (f);
+#endif
+
+ if (_eth_phy_read (f, PHY_BMSR, f->phy_addr, &phy_state)) {
+ if ((phy_state & PHY_BMSR_AUTO_NEG) == 0) {
+
+ eth_phy_printf ("... waiting for auto-negotiation");
+
+ for (tries = 0; tries < CYGINT_DEVS_ETH_PHY_AUTO_NEGOTIATION_TIME;
+ tries++) {
+
+ if (_eth_phy_read (f, PHY_BMSR, f->phy_addr, &phy_state)) {
+ if ((phy_state & PHY_BMSR_AUTO_NEG) != 0) {
+ break;
+ }
+ } else {
+ eth_phy_printf ("error: _eth_phy_read()\n");
+ }
+
+ //
+ // Wait for 1 second
+ //
+ for (ms = 0; ms < 1000; ++ms) {
+ CYGACC_CALL_IF_DELAY_US (1000); // 1 ms
+ }
+ eth_phy_printf (".");
+ }
+ eth_phy_printf ("\n");
+ }
+
+ if ((phy_state & PHY_BMSR_AUTO_NEG) != 0) {
+ *state = 0;
+ if ((phy_state & PHY_BMSR_LINK) != 0) {
+ *state |= ETH_PHY_STAT_LINK;
+ }
+
+ _eth_phy_read (f, PHY_100BASE_CTRL, f->phy_addr, &phy_100ctrl_reg);
+ phy_100ctrl_reg &= PHY_100BASE_CTRL_OP_MODE_MASK;
+ switch (phy_100ctrl_reg) {
+ case PHY_100BASE_CTRL_10T_HDX:
+ break;
+
+ case PHY_100BASE_CTRL_100T_HDX:
+ *state |= ETH_PHY_STAT_100MB;
+ break;
+
+ case PHY_100BASE_CTRL_10T_FDX:
+ *state |= ETH_PHY_STAT_FDX;
+ break;
+
+ case PHY_100BASE_CTRL_100T_FDX:
+ *state |= ETH_PHY_STAT_100MB | ETH_PHY_STAT_FDX;
+ break;
+
+ default:
+ // force to set default 100 Full Duplex
+ *state |= ETH_PHY_STAT_100MB | ETH_PHY_STAT_FDX;
+ } // switch (phy_100ctrl_reg)
+
+ return true;
+ }
+ }
+ return false;
+}
+
+_eth_phy_dev ("Micrel KSZ8041", 0x00221512, ksz8041_stat)