* Move dm9161.c and lxt972.c into cpu/arm920t/at91rm9200
Patch by Anders Larsen, 29 Apr 2005
* Fix problems introduced by Patch by Steven Scholz, 02 Mar 2005
(8e2be51de8dd03c1ce4d06cbb18ad06133d47cd5)
diff --git a/cpu/arm920t/at91rm9200/lxt972.c b/cpu/arm920t/at91rm9200/lxt972.c
new file mode 100644
index 0000000..f12c59c
--- /dev/null
+++ b/cpu/arm920t/at91rm9200/lxt972.c
@@ -0,0 +1,191 @@
+/*
+ *
+ * (C) Copyright 2003
+ * Author : Hamid Ikdoumi (Atmel)
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program 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 of
+ * the License, or (at your option) any later version.
+ *
+ * This program 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 this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+/*
+ * Adapted for KwikByte KB920x board: 22APR2005
+ */
+
+#include <common.h>
+#include <at91rm9200_net.h>
+#include <net.h>
+#include <lxt971a.h>
+
+#ifdef CONFIG_DRIVER_ETHER
+
+#if (CONFIG_COMMANDS & CFG_CMD_NET)
+
+/*
+ * Name:
+ * lxt972_IsPhyConnected
+ * Description:
+ * Reads the 2 PHY ID registers
+ * Arguments:
+ * p_mac - pointer to AT91S_EMAC struct
+ * Return value:
+ * TRUE - if id read successfully
+ * FALSE- if error
+ */
+unsigned int lxt972_IsPhyConnected (AT91PS_EMAC p_mac)
+{
+ unsigned short Id1, Id2;
+
+ at91rm9200_EmacEnableMDIO (p_mac);
+ at91rm9200_EmacReadPhy (p_mac, PHY_COMMON_ID1, &Id1);
+ at91rm9200_EmacReadPhy (p_mac, PHY_COMMON_ID2, &Id2);
+ at91rm9200_EmacDisableMDIO (p_mac);
+
+ if ((Id1 == (0x0013)) && ((Id2 & 0xFFF0) == 0x78E0))
+ return TRUE;
+
+ return FALSE;
+}
+
+/*
+ * Name:
+ * lxt972_GetLinkSpeed
+ * Description:
+ * Link parallel detection status of MAC is checked and set in the
+ * MAC configuration registers
+ * Arguments:
+ * p_mac - pointer to MAC
+ * Return value:
+ * TRUE - if link status set succesfully
+ * FALSE - if link status not set
+ */
+UCHAR lxt972_GetLinkSpeed (AT91PS_EMAC p_mac)
+{
+ unsigned short stat1;
+
+ if (!at91rm9200_EmacReadPhy (p_mac, PHY_LXT971_STAT2, &stat1))
+ return FALSE;
+
+ if (!(stat1 & PHY_LXT971_STAT2_LINK)) /* link status up? */
+ return FALSE;
+
+ if (stat1 & PHY_LXT971_STAT2_100BTX) {
+
+ if (stat1 & PHY_LXT971_STAT2_DUPLEX_MODE) {
+
+ /*set Emac for 100BaseTX and Full Duplex */
+ p_mac->EMAC_CFG |= AT91C_EMAC_SPD | AT91C_EMAC_FD;
+ } else {
+
+ /*set Emac for 100BaseTX and Half Duplex */
+ p_mac->EMAC_CFG = (p_mac->EMAC_CFG &
+ ~(AT91C_EMAC_SPD | AT91C_EMAC_FD))
+ | AT91C_EMAC_SPD;
+ }
+
+ return TRUE;
+
+ } else {
+
+ if (stat1 & PHY_LXT971_STAT2_DUPLEX_MODE) {
+
+ /*set MII for 10BaseT and Full Duplex */
+ p_mac->EMAC_CFG = (p_mac->EMAC_CFG &
+ ~(AT91C_EMAC_SPD | AT91C_EMAC_FD))
+ | AT91C_EMAC_FD;
+ } else {
+
+ /*set MII for 10BaseT and Half Duplex */
+ p_mac->EMAC_CFG &= ~(AT91C_EMAC_SPD | AT91C_EMAC_FD);
+ }
+
+ return TRUE;
+ }
+
+ return FALSE;
+}
+
+
+/*
+ * Name:
+ * lxt972_InitPhy
+ * Description:
+ * MAC starts checking its link by using parallel detection and
+ * Autonegotiation and the same is set in the MAC configuration registers
+ * Arguments:
+ * p_mac - pointer to struct AT91S_EMAC
+ * Return value:
+ * TRUE - if link status set succesfully
+ * FALSE - if link status not set
+ */
+UCHAR lxt972_InitPhy (AT91PS_EMAC p_mac)
+{
+ UCHAR ret = TRUE;
+
+ at91rm9200_EmacEnableMDIO (p_mac);
+
+ if (!lxt972_GetLinkSpeed (p_mac)) {
+ /* Try another time */
+ ret = lxt972_GetLinkSpeed (p_mac);
+ }
+
+ /* Disable PHY Interrupts */
+ at91rm9200_EmacWritePhy (p_mac, PHY_LXT971_INT_ENABLE, 0);
+
+ at91rm9200_EmacDisableMDIO (p_mac);
+
+ return (ret);
+}
+
+
+/*
+ * Name:
+ * lxt972_AutoNegotiate
+ * Description:
+ * MAC Autonegotiates with the partner status of same is set in the
+ * MAC configuration registers
+ * Arguments:
+ * dev - pointer to struct net_device
+ * Return value:
+ * TRUE - if link status set successfully
+ * FALSE - if link status not set
+ */
+UCHAR lxt972_AutoNegotiate (AT91PS_EMAC p_mac, int *status)
+{
+ unsigned short value;
+
+ /* Set lxt972 control register */
+ if (!at91rm9200_EmacReadPhy (p_mac, PHY_COMMON_CTRL, &value))
+ return FALSE;
+
+ /* Restart Auto_negotiation */
+ value |= PHY_COMMON_CTRL_RES_AUTO;
+ if (!at91rm9200_EmacWritePhy (p_mac, PHY_COMMON_CTRL, &value))
+ return FALSE;
+
+ /*check AutoNegotiate complete */
+ udelay (10000);
+ at91rm9200_EmacReadPhy (p_mac, PHY_COMMON_STAT, &value);
+ if (!(value & PHY_COMMON_STAT_AN_COMP))
+ return FALSE;
+
+ return (lxt972_GetLinkSpeed (p_mac));
+}
+
+#endif /* CONFIG_COMMANDS & CFG_CMD_NET */
+
+#endif /* CONFIG_DRIVER_ETHER */