Moved PPC4xx EMAC driver to drivers/net

Also changed path in all linker scripts that reference this driver

Signed-off-by: Ben Warren <biggerbadderben@gmail.com>
Acked-by: Stefan Roese <sr@denx.de>

1 files changed, 2126 insertions, 0 deletions

diff --git a/drivers/net/4xx_enet.c b/drivers/net/4xx_enet.c
new file mode 100644
index 0000000000..1978269599
--- /dev/null
+++ b/drivers/net/4xx_enet.c
@@ -0,0 +1,2126 @@
+/*-----------------------------------------------------------------------------+
+ *
+ *	 This source code has been made available to you by IBM on an AS-IS
+ *	 basis.	 Anyone receiving this source is licensed under IBM
+ *	 copyrights to use it in any way he or she deems fit, including
+ *	 copying it, modifying it, compiling it, and redistributing it either
+ *	 with or without modifications.	 No license under IBM patents or
+ *	 patent applications is to be implied by the copyright license.
+ *
+ *	 Any user of this software should understand that IBM cannot provide
+ *	 technical support for this software and will not be responsible for
+ *	 any consequences resulting from the use of this software.
+ *
+ *	 Any person who transfers this source code or any derivative work
+ *	 must include the IBM copyright notice, this paragraph, and the
+ *	 preceding two paragraphs in the transferred software.
+ *
+ *	 COPYRIGHT   I B M   CORPORATION 1995
+ *	 LICENSED MATERIAL  -  PROGRAM PROPERTY OF I B M
+ *-----------------------------------------------------------------------------*/
+/*-----------------------------------------------------------------------------+
+ *
+ *  File Name:	enetemac.c
+ *
+ *  Function:	Device driver for the ethernet EMAC3 macro on the 405GP.
+ *
+ *  Author:	Mark Wisner
+ *
+ *  Change Activity-
+ *
+ *  Date	Description of Change					    BY
+ *  ---------	---------------------					    ---
+ *  05-May-99	Created							    MKW
+ *  27-Jun-99	Clean up						    JWB
+ *  16-Jul-99	Added MAL error recovery and better IP packet handling	    MKW
+ *  29-Jul-99	Added Full duplex support				    MKW
+ *  06-Aug-99	Changed names for Mal CR reg				    MKW
+ *  23-Aug-99	Turned off SYE when running at 10Mbs			    MKW
+ *  24-Aug-99	Marked descriptor empty after call_xlc			    MKW
+ *  07-Sep-99	Set MAL RX buffer size reg to ENET_MAX_MTU_ALIGNED / 16	    MCG
+ *		to avoid chaining maximum sized packets. Push starting
+ *		RX descriptor address up to the next cache line boundary.
+ *  16-Jan-00	Added support for booting with IP of 0x0		    MKW
+ *  15-Mar-00	Updated enetInit() to enable broadcast addresses in the
+ *		EMAC_RXM register.					    JWB
+ *  12-Mar-01	anne-sophie.harnois@nextream.fr
+ *		 - Variables are compatible with those already defined in
+ *		  include/net.h
+ *		- Receive buffer descriptor ring is used to send buffers
+ *		  to the user
+ *		- Info print about send/received/handled packet number if
+ *		  INFO_405_ENET is set
+ *  17-Apr-01	stefan.roese@esd-electronics.com
+ *		- MAL reset in "eth_halt" included
+ *		- Enet speed and duplex output now in one line
+ *  08-May-01	stefan.roese@esd-electronics.com
+ *		- MAL error handling added (eth_init called again)
+ *  13-Nov-01	stefan.roese@esd-electronics.com
+ *		- Set IST bit in EMAC_M1 reg upon 100MBit or full duplex
+ *  04-Jan-02	stefan.roese@esd-electronics.com
+ *		- Wait for PHY auto negotiation to complete added
+ *  06-Feb-02	stefan.roese@esd-electronics.com
+ *		- Bug fixed in waiting for auto negotiation to complete
+ *  26-Feb-02	stefan.roese@esd-electronics.com
+ *		- rx and tx buffer descriptors now allocated (no fixed address
+ *		  used anymore)
+ *  17-Jun-02	stefan.roese@esd-electronics.com
+ *		- MAL error debug printf 'M' removed (rx de interrupt may
+ *		  occur upon many incoming packets with only 4 rx buffers).
+ *-----------------------------------------------------------------------------*
+ *  17-Nov-03	travis.sawyer@sandburst.com
+ *		- ported from 405gp_enet.c to utilized upto 4 EMAC ports
+ *		  in the 440GX.	 This port should work with the 440GP
+ *		  (2 EMACs) also
+ *  15-Aug-05	sr@denx.de
+ *		- merged 405gp_enet.c and 440gx_enet.c to generic 4xx_enet.c
+		  now handling all 4xx cpu's.
+ *-----------------------------------------------------------------------------*/
+
+#include <config.h>
+#include <common.h>
+#include <net.h>
+#include <asm/processor.h>
+#include <asm/io.h>
+#include <asm/cache.h>
+#include <asm/mmu.h>
+#include <commproc.h>
+#include <ppc4xx.h>
+#include <ppc4xx_enet.h>
+#include <405_mal.h>
+#include <miiphy.h>
+#include <malloc.h>
+
+#if !(defined(CONFIG_MII) || defined(CONFIG_CMD_MII))
+#error "CONFIG_MII has to be defined!"
+#endif
+
+#if defined(CONFIG_NETCONSOLE) && !defined(CONFIG_NET_MULTI)
+#error "CONFIG_NET_MULTI has to be defined for NetConsole"
+#endif
+
+#define EMAC_RESET_TIMEOUT 1000 /* 1000 ms reset timeout */
+#define PHY_AUTONEGOTIATE_TIMEOUT 5000	/* 5000 ms autonegotiate timeout */
+
+/* Ethernet Transmit and Receive Buffers */
+/* AS.HARNOIS
+ * In the same way ENET_MAX_MTU and ENET_MAX_MTU_ALIGNED are set from
+ * PKTSIZE and PKTSIZE_ALIGN (include/net.h)
+ */
+#define ENET_MAX_MTU	       PKTSIZE
+#define ENET_MAX_MTU_ALIGNED   PKTSIZE_ALIGN
+
+/*-----------------------------------------------------------------------------+
+ * Defines for MAL/EMAC interrupt conditions as reported in the UIC (Universal
+ * Interrupt Controller).
+ *-----------------------------------------------------------------------------*/
+#define ETH_IRQ_NUM(dev)	(VECNUM_ETH0 + ((dev) * VECNUM_ETH1_OFFS))
+
+#if defined(CONFIG_HAS_ETH3)
+#if !defined(CONFIG_440GX)
+#define UIC_ETHx	(UIC_MASK(ETH_IRQ_NUM(0)) || UIC_MASK(ETH_IRQ_NUM(1)) || \
+			 UIC_MASK(ETH_IRQ_NUM(2)) || UIC_MASK(ETH_IRQ_NUM(3)))
+#else
+/* Unfortunately 440GX spreads EMAC interrupts on multiple UIC's */
+#define UIC_ETHx	(UIC_MASK(ETH_IRQ_NUM(0)) || UIC_MASK(ETH_IRQ_NUM(1)))
+#define UIC_ETHxB	(UIC_MASK(ETH_IRQ_NUM(2)) || UIC_MASK(ETH_IRQ_NUM(3)))
+#endif /* !defined(CONFIG_440GX) */
+#elif defined(CONFIG_HAS_ETH2)
+#define UIC_ETHx	(UIC_MASK(ETH_IRQ_NUM(0)) || UIC_MASK(ETH_IRQ_NUM(1)) || \
+			 UIC_MASK(ETH_IRQ_NUM(2)))
+#elif defined(CONFIG_HAS_ETH1)
+#define UIC_ETHx	(UIC_MASK(ETH_IRQ_NUM(0)) || UIC_MASK(ETH_IRQ_NUM(1)))
+#else
+#define UIC_ETHx	UIC_MASK(ETH_IRQ_NUM(0))
+#endif
+
+/*
+ * Define a default version for UIC_ETHxB for non 440GX so that we can
+ * use common code for all 4xx variants
+ */
+#if !defined(UIC_ETHxB)
+#define UIC_ETHxB	0
+#endif
+
+#define UIC_MAL_SERR	UIC_MASK(VECNUM_MAL_SERR)
+#define UIC_MAL_TXDE	UIC_MASK(VECNUM_MAL_TXDE)
+#define UIC_MAL_RXDE	UIC_MASK(VECNUM_MAL_RXDE)
+#define UIC_MAL_TXEOB	UIC_MASK(VECNUM_MAL_TXEOB)
+#define UIC_MAL_RXEOB	UIC_MASK(VECNUM_MAL_RXEOB)
+
+#define MAL_UIC_ERR	(UIC_MAL_SERR | UIC_MAL_TXDE | UIC_MAL_RXDE)
+#define MAL_UIC_DEF	(UIC_MAL_RXEOB | MAL_UIC_ERR)
+
+/*
+ * We have 3 different interrupt types:
+ * - MAL interrupts indicating successful transfer
+ * - MAL error interrupts indicating MAL related errors
+ * - EMAC interrupts indicating EMAC related errors
+ *
+ * All those interrupts can be on different UIC's, but since
+ * now at least all interrupts from one type are on the same
+ * UIC. Only exception is 440GX where the EMAC interrupts are
+ * spread over two UIC's!
+ */
+#if defined(CONFIG_440GX)
+#define UIC_BASE_MAL	UIC1_DCR_BASE
+#define UIC_BASE_MAL_ERR UIC2_DCR_BASE
+#define UIC_BASE_EMAC	UIC2_DCR_BASE
+#define UIC_BASE_EMAC_B	UIC3_DCR_BASE
+#else
+#define UIC_BASE_MAL	(UIC0_DCR_BASE + (UIC_NR(VECNUM_MAL_TXEOB) * 0x10))
+#define UIC_BASE_MAL_ERR (UIC0_DCR_BASE + (UIC_NR(VECNUM_MAL_SERR) * 0x10))
+#define UIC_BASE_EMAC	(UIC0_DCR_BASE + (UIC_NR(ETH_IRQ_NUM(0)) * 0x10))
+#define UIC_BASE_EMAC_B	(UIC0_DCR_BASE + (UIC_NR(ETH_IRQ_NUM(0)) * 0x10))
+#endif
+
+#undef INFO_4XX_ENET
+
+#define BI_PHYMODE_NONE	 0
+#define BI_PHYMODE_ZMII	 1
+#define BI_PHYMODE_RGMII 2
+#define BI_PHYMODE_GMII  3
+#define BI_PHYMODE_RTBI  4
+#define BI_PHYMODE_TBI   5
+#if defined(CONFIG_440EPX) || defined(CONFIG_440GRX) || \
+    defined(CONFIG_460EX) || defined(CONFIG_460GT) || \
+    defined(CONFIG_405EX)
+#define BI_PHYMODE_SMII  6
+#define BI_PHYMODE_MII   7
+#if defined(CONFIG_460EX) || defined(CONFIG_460GT)
+#define BI_PHYMODE_RMII  8
+#endif
+#endif
+#define BI_PHYMODE_SGMII 9
+
+#if defined(CONFIG_440SP) || defined(CONFIG_440SPE) || \
+    defined(CONFIG_440EPX) || defined(CONFIG_440GRX) || \
+    defined(CONFIG_460EX) || defined(CONFIG_460GT) || \
+    defined(CONFIG_405EX)
+#define SDR0_MFR_ETH_CLK_SEL_V(n)	((0x01<<27) / (n+1))
+#endif
+
+#if defined(CONFIG_460EX) || defined(CONFIG_460GT)
+#define SDR0_ETH_CFG_CLK_SEL_V(n)	(0x01 << (8 + n))
+#endif
+
+#if defined(CONFIG_460EX) || defined(CONFIG_460GT)
+#define MAL_RX_CHAN_MUL	8	/* 460EX/GT uses MAL channel 8 for EMAC1 */
+#else
+#define MAL_RX_CHAN_MUL	1
+#endif
+
+/*--------------------------------------------------------------------+
+ * Fixed PHY (PHY-less) support for Ethernet Ports.
+ *--------------------------------------------------------------------*/
+
+/*
+ * Some boards do not have a PHY for each ethernet port. These ports
+ * are known as Fixed PHY (or PHY-less) ports. For such ports, set
+ * the appropriate CONFIG_PHY_ADDR equal to CONFIG_FIXED_PHY and
+ * then define CONFIG_SYS_FIXED_PHY_PORTS to define what the speed and
+ * duplex should be for these ports in the board configuration
+ * file.
+ *
+ * For Example:
+ *     #define CONFIG_FIXED_PHY   0xFFFFFFFF
+ *
+ *     #define CONFIG_PHY_ADDR    CONFIG_FIXED_PHY
+ *     #define CONFIG_PHY1_ADDR   1
+ *     #define CONFIG_PHY2_ADDR   CONFIG_FIXED_PHY
+ *     #define CONFIG_PHY3_ADDR   3
+ *
+ *     #define CONFIG_SYS_FIXED_PHY_PORT(devnum,speed,duplex) \
+ *                     {devnum, speed, duplex},
+ *
+ *     #define CONFIG_SYS_FIXED_PHY_PORTS \
+ *                     CONFIG_SYS_FIXED_PHY_PORT(0,1000,FULL) \
+ *                     CONFIG_SYS_FIXED_PHY_PORT(2,100,HALF)
+ */
+
+#ifndef CONFIG_FIXED_PHY
+#define CONFIG_FIXED_PHY	0xFFFFFFFF /* Fixed PHY (PHY-less) */
+#endif
+
+#ifndef CONFIG_SYS_FIXED_PHY_PORTS
+#define CONFIG_SYS_FIXED_PHY_PORTS	/* default is an empty array */
+#endif
+
+struct fixed_phy_port {
+	unsigned int devnum;	/* ethernet port */
+	unsigned int speed;	/* specified speed 10,100 or 1000 */
+	unsigned int duplex;	/* specified duplex FULL or HALF */
+};
+
+static const struct fixed_phy_port fixed_phy_port[] = {
+	CONFIG_SYS_FIXED_PHY_PORTS	/* defined in board configuration file */
+};
+
+/*-----------------------------------------------------------------------------+
+ * Global variables. TX and RX descriptors and buffers.
+ *-----------------------------------------------------------------------------*/
+#if !defined(CONFIG_NET_MULTI)
+struct eth_device *emac0_dev = NULL;
+#endif
+
+/*
+ * Get count of EMAC devices (doesn't have to be the max. possible number
+ * supported by the cpu)
+ *
+ * CONFIG_BOARD_EMAC_COUNT added so now a "dynamic" way to configure the
+ * EMAC count is possible. As it is needed for the Kilauea/Haleakala
+ * 405EX/405EXr eval board, using the same binary.
+ */
+#if defined(CONFIG_BOARD_EMAC_COUNT)
+#define LAST_EMAC_NUM	board_emac_count()
+#else /* CONFIG_BOARD_EMAC_COUNT */
+#if defined(CONFIG_HAS_ETH3)
+#define LAST_EMAC_NUM	4
+#elif defined(CONFIG_HAS_ETH2)
+#define LAST_EMAC_NUM	3
+#elif defined(CONFIG_HAS_ETH1)
+#define LAST_EMAC_NUM	2
+#else
+#define LAST_EMAC_NUM	1
+#endif
+#endif /* CONFIG_BOARD_EMAC_COUNT */
+
+/* normal boards start with EMAC0 */
+#if !defined(CONFIG_EMAC_NR_START)
+#define CONFIG_EMAC_NR_START	0
+#endif
+
+#define MAL_RX_DESC_SIZE	2048
+#define MAL_TX_DESC_SIZE	2048
+#define MAL_ALLOC_SIZE		(MAL_TX_DESC_SIZE + MAL_RX_DESC_SIZE)
+
+/*-----------------------------------------------------------------------------+
+ * Prototypes and externals.
+ *-----------------------------------------------------------------------------*/
+static void enet_rcv (struct eth_device *dev, unsigned long malisr);
+
+int enetInt (struct eth_device *dev);
+static void mal_err (struct eth_device *dev, unsigned long isr,
+		     unsigned long uic, unsigned long maldef,
+		     unsigned long mal_errr);
+static void emac_err (struct eth_device *dev, unsigned long isr);
+
+extern int phy_setup_aneg (char *devname, unsigned char addr);
+extern int emac4xx_miiphy_read (char *devname, unsigned char addr,
+		unsigned char reg, unsigned short *value);
+extern int emac4xx_miiphy_write (char *devname, unsigned char addr,
+		unsigned char reg, unsigned short value);
+
+int board_emac_count(void);
+
+static void emac_loopback_enable(EMAC_4XX_HW_PST hw_p)
+{
+#if defined(CONFIG_440SPE) || \
+    defined(CONFIG_440EPX) || defined(CONFIG_440GRX) || \
+    defined(CONFIG_405EX)
+	u32 val;
+
+	mfsdr(sdr_mfr, val);
+	val |= SDR0_MFR_ETH_CLK_SEL_V(hw_p->devnum);
+	mtsdr(sdr_mfr, val);
+#elif defined(CONFIG_460EX) || defined(CONFIG_460GT)
+	u32 val;
+
+	mfsdr(SDR0_ETH_CFG, val);
+	val |= SDR0_ETH_CFG_CLK_SEL_V(hw_p->devnum);
+	mtsdr(SDR0_ETH_CFG, val);
+#endif
+}
+
+static void emac_loopback_disable(EMAC_4XX_HW_PST hw_p)
+{
+#if defined(CONFIG_440SPE) || \
+    defined(CONFIG_440EPX) || defined(CONFIG_440GRX) || \
+    defined(CONFIG_405EX)
+	u32 val;
+
+	mfsdr(sdr_mfr, val);
+	val &= ~SDR0_MFR_ETH_CLK_SEL_V(hw_p->devnum);
+	mtsdr(sdr_mfr, val);
+#elif defined(CONFIG_460EX) || defined(CONFIG_460GT)
+	u32 val;
+
+	mfsdr(SDR0_ETH_CFG, val);
+	val &= ~SDR0_ETH_CFG_CLK_SEL_V(hw_p->devnum);
+	mtsdr(SDR0_ETH_CFG, val);
+#endif
+}
+
+/*-----------------------------------------------------------------------------+
+| ppc_4xx_eth_halt
+| Disable MAL channel, and EMACn
++-----------------------------------------------------------------------------*/
+static void ppc_4xx_eth_halt (struct eth_device *dev)
+{
+	EMAC_4XX_HW_PST hw_p = dev->priv;
+	u32 val = 10000;
+
+	out_be32((void *)EMAC_IER + hw_p->hw_addr, 0x00000000);	/* disable emac interrupts */
+
+	/* 1st reset MAL channel */
+	/* Note: writing a 0 to a channel has no effect */
+#if defined(CONFIG_405EP) || defined(CONFIG_440EP) || defined(CONFIG_440GR)
+	mtdcr (maltxcarr, (MAL_CR_MMSR >> (hw_p->devnum * 2)));
+#else
+	mtdcr (maltxcarr, (MAL_CR_MMSR >> hw_p->devnum));
+#endif
+	mtdcr (malrxcarr, (MAL_CR_MMSR >> hw_p->devnum));
+
+	/* wait for reset */
+	while (mfdcr (malrxcasr) & (MAL_CR_MMSR >> hw_p->devnum)) {
+		udelay (1000);	/* Delay 1 MS so as not to hammer the register */
+		val--;
+		if (val == 0)
+			break;
+	}
+
+	/* provide clocks for EMAC internal loopback  */
+	emac_loopback_enable(hw_p);
+
+	/* EMAC RESET */
+	out_be32((void *)EMAC_M0 + hw_p->hw_addr, EMAC_M0_SRST);
+
+	/* remove clocks for EMAC internal loopback  */
+	emac_loopback_disable(hw_p);
+
+#ifndef CONFIG_NETCONSOLE
+	hw_p->print_speed = 1;	/* print speed message again next time */
+#endif
+
+#if defined(CONFIG_460EX) || defined(CONFIG_460GT)
+	/* don't bypass the TAHOE0/TAHOE1 cores for Linux */
+	mfsdr(SDR0_ETH_CFG, val);
+	val &= ~(SDR0_ETH_CFG_TAHOE0_BYPASS | SDR0_ETH_CFG_TAHOE1_BYPASS);
+	mtsdr(SDR0_ETH_CFG, val);
+#endif
+
+	return;
+}
+
+#if defined (CONFIG_440GX)
+int ppc_4xx_eth_setup_bridge(int devnum, bd_t * bis)
+{
+	unsigned long pfc1;
+	unsigned long zmiifer;
+	unsigned long rmiifer;
+
+	mfsdr(sdr_pfc1, pfc1);
+	pfc1 = SDR0_PFC1_EPS_DECODE(pfc1);
+
+	zmiifer = 0;
+	rmiifer = 0;
+
+	switch (pfc1) {
+	case 1:
+		zmiifer |= ZMII_FER_RMII << ZMII_FER_V(0);
+		zmiifer |= ZMII_FER_RMII << ZMII_FER_V(1);
+		zmiifer |= ZMII_FER_RMII << ZMII_FER_V(2);
+		zmiifer |= ZMII_FER_RMII << ZMII_FER_V(3);
+		bis->bi_phymode[0] = BI_PHYMODE_ZMII;
+		bis->bi_phymode[1] = BI_PHYMODE_ZMII;
+		bis->bi_phymode[2] = BI_PHYMODE_ZMII;
+		bis->bi_phymode[3] = BI_PHYMODE_ZMII;
+		break;
+	case 2:
+		zmiifer |= ZMII_FER_SMII << ZMII_FER_V(0);
+		zmiifer |= ZMII_FER_SMII << ZMII_FER_V(1);
+		zmiifer |= ZMII_FER_SMII << ZMII_FER_V(2);
+		zmiifer |= ZMII_FER_SMII << ZMII_FER_V(3);
+		bis->bi_phymode[0] = BI_PHYMODE_ZMII;
+		bis->bi_phymode[1] = BI_PHYMODE_ZMII;
+		bis->bi_phymode[2] = BI_PHYMODE_ZMII;
+		bis->bi_phymode[3] = BI_PHYMODE_ZMII;
+		break;
+	case 3:
+		zmiifer |= ZMII_FER_RMII << ZMII_FER_V(0);
+		rmiifer |= RGMII_FER_RGMII << RGMII_FER_V(2);
+		bis->bi_phymode[0] = BI_PHYMODE_ZMII;
+		bis->bi_phymode[1] = BI_PHYMODE_NONE;
+		bis->bi_phymode[2] = BI_PHYMODE_RGMII;
+		bis->bi_phymode[3] = BI_PHYMODE_NONE;
+		break;
+	case 4:
+		zmiifer |= ZMII_FER_SMII << ZMII_FER_V(0);
+		zmiifer |= ZMII_FER_SMII << ZMII_FER_V(1);
+		rmiifer |= RGMII_FER_RGMII << RGMII_FER_V (2);
+		rmiifer |= RGMII_FER_RGMII << RGMII_FER_V (3);
+		bis->bi_phymode[0] = BI_PHYMODE_ZMII;
+		bis->bi_phymode[1] = BI_PHYMODE_ZMII;
+		bis->bi_phymode[2] = BI_PHYMODE_RGMII;
+		bis->bi_phymode[3] = BI_PHYMODE_RGMII;
+		break;
+	case 5:
+		zmiifer |= ZMII_FER_SMII << ZMII_FER_V (0);
+		zmiifer |= ZMII_FER_SMII << ZMII_FER_V (1);
+		zmiifer |= ZMII_FER_SMII << ZMII_FER_V (2);
+		rmiifer |= RGMII_FER_RGMII << RGMII_FER_V(3);
+		bis->bi_phymode[0] = BI_PHYMODE_ZMII;
+		bis->bi_phymode[1] = BI_PHYMODE_ZMII;
+		bis->bi_phymode[2] = BI_PHYMODE_ZMII;
+		bis->bi_phymode[3] = BI_PHYMODE_RGMII;
+		break;
+	case 6:
+		zmiifer |= ZMII_FER_SMII << ZMII_FER_V (0);
+		zmiifer |= ZMII_FER_SMII << ZMII_FER_V (1);
+		rmiifer |= RGMII_FER_RGMII << RGMII_FER_V(2);
+		bis->bi_phymode[0] = BI_PHYMODE_ZMII;
+		bis->bi_phymode[1] = BI_PHYMODE_ZMII;
+		bis->bi_phymode[2] = BI_PHYMODE_RGMII;
+		break;
+	case 0:
+	default:
+		zmiifer = ZMII_FER_MII << ZMII_FER_V(devnum);
+		rmiifer = 0x0;
+		bis->bi_phymode[0] = BI_PHYMODE_ZMII;
+		bis->bi_phymode[1] = BI_PHYMODE_ZMII;
+		bis->bi_phymode[2] = BI_PHYMODE_ZMII;
+		bis->bi_phymode[3] = BI_PHYMODE_ZMII;
+		break;
+	}
+
+	/* Ensure we setup mdio for this devnum and ONLY this devnum */
+	zmiifer |= (ZMII_FER_MDI) << ZMII_FER_V(devnum);
+
+	out_be32((void *)ZMII_FER, zmiifer);
+	out_be32((void *)RGMII_FER, rmiifer);
+
+	return ((int)pfc1);
+}
+#endif	/* CONFIG_440_GX */
+
+#if defined(CONFIG_440EPX) || defined(CONFIG_440GRX)
+int ppc_4xx_eth_setup_bridge(int devnum, bd_t * bis)
+{
+	unsigned long zmiifer=0x0;
+	unsigned long pfc1;
+
+	mfsdr(sdr_pfc1, pfc1);
+	pfc1 &= SDR0_PFC1_SELECT_MASK;
+
+	switch (pfc1) {
+	case SDR0_PFC1_SELECT_CONFIG_2:
+		/* 1 x GMII port */
+		out_be32((void *)ZMII_FER, 0x00);
+		out_be32((void *)RGMII_FER, 0x00000037);
+		bis->bi_phymode[0] = BI_PHYMODE_GMII;
+		bis->bi_phymode[1] = BI_PHYMODE_NONE;
+		break;
+	case SDR0_PFC1_SELECT_CONFIG_4:
+		/* 2 x RGMII ports */
+		out_be32((void *)ZMII_FER, 0x00);
+		out_be32((void *)RGMII_FER, 0x00000055);
+		bis->bi_phymode[0] = BI_PHYMODE_RGMII;
+		bis->bi_phymode[1] = BI_PHYMODE_RGMII;
+		break;
+	case SDR0_PFC1_SELECT_CONFIG_6:
+		/* 2 x SMII ports */
+		out_be32((void *)ZMII_FER,
+			 ((ZMII_FER_SMII) << ZMII_FER_V(0)) |
+			 ((ZMII_FER_SMII) << ZMII_FER_V(1)));
+		out_be32((void *)RGMII_FER, 0x00000000);
+		bis->bi_phymode[0] = BI_PHYMODE_SMII;
+		bis->bi_phymode[1] = BI_PHYMODE_SMII;
+		break;
+	case SDR0_PFC1_SELECT_CONFIG_1_2:
+		/* only 1 x MII supported */
+		out_be32((void *)ZMII_FER, (ZMII_FER_MII) << ZMII_FER_V(0));
+		out_be32((void *)RGMII_FER, 0x00000000);
+		bis->bi_phymode[0] = BI_PHYMODE_MII;
+		bis->bi_phymode[1] = BI_PHYMODE_NONE;
+		break;
+	default:
+		break;
+	}
+
+	/* Ensure we setup mdio for this devnum and ONLY this devnum */
+	zmiifer = in_be32((void *)ZMII_FER);
+	zmiifer |= (ZMII_FER_MDI) << ZMII_FER_V(devnum);
+	out_be32((void *)ZMII_FER, zmiifer);
+
+	return ((int)0x0);
+}
+#endif	/* CONFIG_440EPX */
+
+#if defined(CONFIG_405EX)
+int ppc_4xx_eth_setup_bridge(int devnum, bd_t * bis)
+{
+	u32 rgmiifer = 0;
+
+	/*
+	 * The 405EX(r)'s RGMII bridge can operate in one of several
+	 * modes, only one of which (2 x RGMII) allows the
+	 * simultaneous use of both EMACs on the 405EX.
+	 */
+
+	switch (CONFIG_EMAC_PHY_MODE) {
+
+	case EMAC_PHY_MODE_NONE:
+		/* No ports */
+		rgmiifer |= RGMII_FER_DIS	<< 0;
+		rgmiifer |= RGMII_FER_DIS	<< 4;
+		out_be32((void *)RGMII_FER, rgmiifer);
+		bis->bi_phymode[0] = BI_PHYMODE_NONE;
+		bis->bi_phymode[1] = BI_PHYMODE_NONE;
+		break;
+	case EMAC_PHY_MODE_NONE_RGMII:
+		/* 1 x RGMII port on channel 0 */
+		rgmiifer |= RGMII_FER_RGMII	<< 0;
+		rgmiifer |= RGMII_FER_DIS	<< 4;
+		out_be32((void *)RGMII_FER, rgmiifer);
+		bis->bi_phymode[0] = BI_PHYMODE_RGMII;
+		bis->bi_phymode[1] = BI_PHYMODE_NONE;
+		break;
+	case EMAC_PHY_MODE_RGMII_NONE:
+		/* 1 x RGMII port on channel 1 */
+		rgmiifer |= RGMII_FER_DIS	<< 0;
+		rgmiifer |= RGMII_FER_RGMII	<< 4;
+		out_be32((void *)RGMII_FER, rgmiifer);
+		bis->bi_phymode[0] = BI_PHYMODE_NONE;
+		bis->bi_phymode[1] = BI_PHYMODE_RGMII;
+		break;
+	case EMAC_PHY_MODE_RGMII_RGMII:
+		/* 2 x RGMII ports */
+		rgmiifer |= RGMII_FER_RGMII	<< 0;
+		rgmiifer |= RGMII_FER_RGMII	<< 4;
+		out_be32((void *)RGMII_FER, rgmiifer);
+		bis->bi_phymode[0] = BI_PHYMODE_RGMII;
+		bis->bi_phymode[1] = BI_PHYMODE_RGMII;
+		break;
+	case EMAC_PHY_MODE_NONE_GMII:
+		/* 1 x GMII port on channel 0 */
+		rgmiifer |= RGMII_FER_GMII	<< 0;
+		rgmiifer |= RGMII_FER_DIS	<< 4;
+		out_be32((void *)RGMII_FER, rgmiifer);
+		bis->bi_phymode[0] = BI_PHYMODE_GMII;
+		bis->bi_phymode[1] = BI_PHYMODE_NONE;
+		break;
+	case EMAC_PHY_MODE_NONE_MII:
+		/* 1 x MII port on channel 0 */
+		rgmiifer |= RGMII_FER_MII	<< 0;
+		rgmiifer |= RGMII_FER_DIS	<< 4;
+		out_be32((void *)RGMII_FER, rgmiifer);
+		bis->bi_phymode[0] = BI_PHYMODE_MII;
+		bis->bi_phymode[1] = BI_PHYMODE_NONE;
+		break;
+	case EMAC_PHY_MODE_GMII_NONE:
+		/* 1 x GMII port on channel 1 */
+		rgmiifer |= RGMII_FER_DIS	<< 0;
+		rgmiifer |= RGMII_FER_GMII	<< 4;
+		out_be32((void *)RGMII_FER, rgmiifer);
+		bis->bi_phymode[0] = BI_PHYMODE_NONE;
+		bis->bi_phymode[1] = BI_PHYMODE_GMII;
+		break;
+	case EMAC_PHY_MODE_MII_NONE:
+		/* 1 x MII port on channel 1 */
+		rgmiifer |= RGMII_FER_DIS	<< 0;
+		rgmiifer |= RGMII_FER_MII	<< 4;
+		out_be32((void *)RGMII_FER, rgmiifer);
+		bis->bi_phymode[0] = BI_PHYMODE_NONE;
+		bis->bi_phymode[1] = BI_PHYMODE_MII;
+		break;
+	default:
+		break;
+	}
+
+	/* Ensure we setup mdio for this devnum and ONLY this devnum */
+	rgmiifer = in_be32((void *)RGMII_FER);
+	rgmiifer |= (1 << (19-devnum));
+	out_be32((void *)RGMII_FER, rgmiifer);
+
+	return ((int)0x0);
+}
+#endif  /* CONFIG_405EX */
+
+#if defined(CONFIG_460EX) || defined(CONFIG_460GT)
+int ppc_4xx_eth_setup_bridge(int devnum, bd_t * bis)
+{
+	u32 eth_cfg;
+	u32 zmiifer;		/* ZMII0_FER reg. */
+	u32 rmiifer;		/* RGMII0_FER reg. Bridge 0 */
+	u32 rmiifer1;		/* RGMII0_FER reg. Bridge 1 */
+	int mode;
+
+	zmiifer  = 0;
+	rmiifer  = 0;
+	rmiifer1 = 0;
+
+#if defined(CONFIG_460EX)
+	mode = 9;
+	mfsdr(SDR0_ETH_CFG, eth_cfg);
+	if (((eth_cfg & SDR0_ETH_CFG_SGMII0_ENABLE) > 0) &&
+	    ((eth_cfg & SDR0_ETH_CFG_SGMII1_ENABLE) > 0))
+		mode = 11; /* config SGMII */
+#else
+	mode = 10;
+	mfsdr(SDR0_ETH_CFG, eth_cfg);
+	if (((eth_cfg & SDR0_ETH_CFG_SGMII0_ENABLE) > 0) &&
+	    ((eth_cfg & SDR0_ETH_CFG_SGMII1_ENABLE) > 0) &&
+	    ((eth_cfg & SDR0_ETH_CFG_SGMII2_ENABLE) > 0))
+		mode = 12; /* config SGMII */
+#endif
+
+	/* TODO:
+	 * NOTE: 460GT has 2 RGMII bridge cores:
+	 *		emac0 ------ RGMII0_BASE
+	 *		           |
+	 *		emac1 -----+
+	 *
+	 *		emac2 ------ RGMII1_BASE
+	 *		           |
+	 *		emac3 -----+
+	 *
+	 *	460EX has 1 RGMII bridge core:
+	 *	and RGMII1_BASE is disabled
+	 *		emac0 ------ RGMII0_BASE
+	 *		           |
+	 *		emac1 -----+
+	 */
+
+	/*
+	 * Right now only 2*RGMII is supported. Please extend when needed.
+	 * sr - 2008-02-19
+	 * Add SGMII support.
+	 * vg - 2008-07-28
+	 */
+	switch (mode) {
+	case 1:
+		/* 1 MII - 460EX */
+		/* GMC0 EMAC4_0, ZMII Bridge */
+		zmiifer |= ZMII_FER_MII << ZMII_FER_V(0);
+		bis->bi_phymode[0] = BI_PHYMODE_MII;
+		bis->bi_phymode[1] = BI_PHYMODE_NONE;
+		bis->bi_phymode[2] = BI_PHYMODE_NONE;
+		bis->bi_phymode[3] = BI_PHYMODE_NONE;
+		break;
+	case 2:
+		/* 2 MII - 460GT */
+		/* GMC0 EMAC4_0, GMC1 EMAC4_2, ZMII Bridge */
+		zmiifer |= ZMII_FER_MII << ZMII_FER_V(0);
+		zmiifer |= ZMII_FER_MII << ZMII_FER_V(2);
+		bis->bi_phymode[0] = BI_PHYMODE_MII;
+		bis->bi_phymode[1] = BI_PHYMODE_NONE;
+		bis->bi_phymode[2] = BI_PHYMODE_MII;
+		bis->bi_phymode[3] = BI_PHYMODE_NONE;
+		break;
+	case 3:
+		/* 2 RMII - 460EX */
+		/* GMC0 EMAC4_0, GMC0 EMAC4_1, ZMII Bridge */
+		zmiifer |= ZMII_FER_RMII << ZMII_FER_V(0);
+		zmiifer |= ZMII_FER_RMII << ZMII_FER_V(1);
+		bis->bi_phymode[0] = BI_PHYMODE_RMII;
+		bis->bi_phymode[1] = BI_PHYMODE_RMII;
+		bis->bi_phymode[2] = BI_PHYMODE_NONE;
+		bis->bi_phymode[3] = BI_PHYMODE_NONE;
+		break;
+	case 4:
+		/* 4 RMII - 460GT */
+		/* GMC0 EMAC4_0, GMC0 EMAC4_1, GMC1 EMAC4_2, GMC1, EMAC4_3 */
+		/* ZMII Bridge */
+		zmiifer |= ZMII_FER_RMII << ZMII_FER_V(0);
+		zmiifer |= ZMII_FER_RMII << ZMII_FER_V(1);
+		zmiifer |= ZMII_FER_RMII << ZMII_FER_V(2);
+		zmiifer |= ZMII_FER_RMII << ZMII_FER_V(3);
+		bis->bi_phymode[0] = BI_PHYMODE_RMII;
+		bis->bi_phymode[1] = BI_PHYMODE_RMII;
+		bis->bi_phymode[2] = BI_PHYMODE_RMII;
+		bis->bi_phymode[3] = BI_PHYMODE_RMII;
+		break;
+	case 5:
+		/* 2 SMII - 460EX */
+		/* GMC0 EMAC4_0, GMC0 EMAC4_1, ZMII Bridge */
+		zmiifer |= ZMII_FER_SMII << ZMII_FER_V(0);
+		zmiifer |= ZMII_FER_SMII << ZMII_FER_V(1);
+		bis->bi_phymode[0] = BI_PHYMODE_SMII;
+		bis->bi_phymode[1] = BI_PHYMODE_SMII;
+		bis->bi_phymode[2] = BI_PHYMODE_NONE;
+		bis->bi_phymode[3] = BI_PHYMODE_NONE;
+		break;
+	case 6:
+		/* 4 SMII - 460GT */
+		/* GMC0 EMAC4_0, GMC0 EMAC4_1, GMC0 EMAC4_3, GMC0 EMAC4_3 */
+		/* ZMII Bridge */
+		zmiifer |= ZMII_FER_SMII << ZMII_FER_V(0);
+		zmiifer |= ZMII_FER_SMII << ZMII_FER_V(1);
+		zmiifer |= ZMII_FER_SMII << ZMII_FER_V(2);
+		zmiifer |= ZMII_FER_SMII << ZMII_FER_V(3);
+		bis->bi_phymode[0] = BI_PHYMODE_SMII;
+		bis->bi_phymode[1] = BI_PHYMODE_SMII;
+		bis->bi_phymode[2] = BI_PHYMODE_SMII;
+		bis->bi_phymode[3] = BI_PHYMODE_SMII;
+		break;
+	case 7:
+		/* This is the default mode that we want for board bringup - Maple */
+		/* 1 GMII - 460EX */
+		/* GMC0 EMAC4_0, RGMII Bridge 0 */
+		rmiifer |= RGMII_FER_MDIO(0);
+
+		if (devnum == 0) {
+			rmiifer |= RGMII_FER_GMII << RGMII_FER_V(2); /* CH0CFG - EMAC0 */
+			bis->bi_phymode[0] = BI_PHYMODE_GMII;
+			bis->bi_phymode[1] = BI_PHYMODE_NONE;
+			bis->bi_phymode[2] = BI_PHYMODE_NONE;
+			bis->bi_phymode[3] = BI_PHYMODE_NONE;
+		} else {
+			rmiifer |= RGMII_FER_GMII << RGMII_FER_V(3); /* CH1CFG - EMAC1 */
+			bis->bi_phymode[0] = BI_PHYMODE_NONE;
+			bis->bi_phymode[1] = BI_PHYMODE_GMII;
+			bis->bi_phymode[2] = BI_PHYMODE_NONE;
+			bis->bi_phymode[3] = BI_PHYMODE_NONE;
+		}
+		break;
+	case 8:
+		/* 2 GMII - 460GT */
+		/* GMC0 EMAC4_0, RGMII Bridge 0 */
+		/* GMC1 EMAC4_2, RGMII Bridge 1 */
+		rmiifer |= RGMII_FER_GMII << RGMII_FER_V(2);	/* CH0CFG - EMAC0 */
+		rmiifer1 |= RGMII_FER_GMII << RGMII_FER_V(2);	/* CH0CFG - EMAC2 */
+		rmiifer |= RGMII_FER_MDIO(0);			/* enable MDIO - EMAC0 */
+		rmiifer1 |= RGMII_FER_MDIO(0);			/* enable MDIO - EMAC2 */
+
+		bis->bi_phymode[0] = BI_PHYMODE_GMII;
+		bis->bi_phymode[1] = BI_PHYMODE_NONE;
+		bis->bi_phymode[2] = BI_PHYMODE_GMII;
+		bis->bi_phymode[3] = BI_PHYMODE_NONE;
+		break;
+	case 9:
+		/* 2 RGMII - 460EX */
+		/* GMC0 EMAC4_0, GMC0 EMAC4_1, RGMII Bridge 0 */
+		rmiifer |= RGMII_FER_RGMII << RGMII_FER_V(2);
+		rmiifer |= RGMII_FER_RGMII << RGMII_FER_V(3);
+		rmiifer |= RGMII_FER_MDIO(0);			/* enable MDIO - EMAC0 */
+
+		bis->bi_phymode[0] = BI_PHYMODE_RGMII;
+		bis->bi_phymode[1] = BI_PHYMODE_RGMII;
+		bis->bi_phymode[2] = BI_PHYMODE_NONE;
+		bis->bi_phymode[3] = BI_PHYMODE_NONE;
+		break;
+	case 10:
+		/* 4 RGMII - 460GT */
+		/* GMC0 EMAC4_0, GMC0 EMAC4_1, RGMII Bridge 0 */
+		/* GMC1 EMAC4_2, GMC1 EMAC4_3, RGMII Bridge 1 */
+		rmiifer |= RGMII_FER_RGMII << RGMII_FER_V(2);
+		rmiifer |= RGMII_FER_RGMII << RGMII_FER_V(3);
+		rmiifer1 |= RGMII_FER_RGMII << RGMII_FER_V(2);
+		rmiifer1 |= RGMII_FER_RGMII << RGMII_FER_V(3);
+		bis->bi_phymode[0] = BI_PHYMODE_RGMII;
+		bis->bi_phymode[1] = BI_PHYMODE_RGMII;
+		bis->bi_phymode[2] = BI_PHYMODE_RGMII;
+		bis->bi_phymode[3] = BI_PHYMODE_RGMII;
+		break;
+	case 11:
+		/* 2 SGMII - 460EX */
+		bis->bi_phymode[0] = BI_PHYMODE_SGMII;
+		bis->bi_phymode[1] = BI_PHYMODE_SGMII;
+		bis->bi_phymode[2] = BI_PHYMODE_NONE;
+		bis->bi_phymode[3] = BI_PHYMODE_NONE;
+		break;
+	case 12:
+		/* 3 SGMII - 460GT */
+		bis->bi_phymode[0] = BI_PHYMODE_SGMII;
+		bis->bi_phymode[1] = BI_PHYMODE_SGMII;
+		bis->bi_phymode[2] = BI_PHYMODE_SGMII;
+		bis->bi_phymode[3] = BI_PHYMODE_NONE;
+		break;
+	default:
+		break;
+	}
+
+	/* Set EMAC for MDIO */
+	mfsdr(SDR0_ETH_CFG, eth_cfg);
+	eth_cfg |= SDR0_ETH_CFG_MDIO_SEL_EMAC0;
+	mtsdr(SDR0_ETH_CFG, eth_cfg);
+
+	out_be32((void *)RGMII_FER, rmiifer);
+#if defined(CONFIG_460GT)
+	out_be32((void *)RGMII_FER + RGMII1_BASE_OFFSET, rmiifer1);
+#endif
+
+	/* bypass the TAHOE0/TAHOE1 cores for U-Boot */
+	mfsdr(SDR0_ETH_CFG, eth_cfg);
+	eth_cfg |= (SDR0_ETH_CFG_TAHOE0_BYPASS | SDR0_ETH_CFG_TAHOE1_BYPASS);
+	mtsdr(SDR0_ETH_CFG, eth_cfg);
+
+	return 0;
+}
+#endif /* CONFIG_460EX || CONFIG_460GT */
+
+static inline void *malloc_aligned(u32 size, u32 align)
+{
+	return (void *)(((u32)malloc(size + align) + align - 1) &
+			~(align - 1));
+}
+
+static int ppc_4xx_eth_init (struct eth_device *dev, bd_t * bis)
+{
+	int i;
+	unsigned long reg = 0;
+	unsigned long msr;
+	unsigned long speed;
+	unsigned long duplex;
+	unsigned long failsafe;
+	unsigned mode_reg;
+	unsigned short devnum;
+	unsigned short reg_short;
+#if defined(CONFIG_440GX) || \
+    defined(CONFIG_440EPX) || defined(CONFIG_440GRX) || \
+    defined(CONFIG_440SP) || defined(CONFIG_440SPE) || \
+    defined(CONFIG_460EX) || defined(CONFIG_460GT) || \
+    defined(CONFIG_405EX)
+	sys_info_t sysinfo;
+#if defined(CONFIG_440GX) || defined(CONFIG_440SPE) || \
+    defined(CONFIG_440EPX) || defined(CONFIG_440GRX) || \
+    defined(CONFIG_460EX) || defined(CONFIG_460GT) || \
+    defined(CONFIG_405EX)
+	int ethgroup = -1;
+#endif
+#endif
+	u32 bd_cached;
+	u32 bd_uncached = 0;
+#ifdef CONFIG_4xx_DCACHE
+	static u32 last_used_ea = 0;
+#endif
+#if defined(CONFIG_440EPX) || defined(CONFIG_440GRX) || \
+    defined(CONFIG_460EX) || defined(CONFIG_460GT) || \
+    defined(CONFIG_405EX)
+	int rgmii_channel;
+#endif
+
+	EMAC_4XX_HW_PST hw_p = dev->priv;
+
+	/* before doing anything, figure out if we have a MAC address */
+	/* if not, bail */
+	if (memcmp (dev->enetaddr, "\0\0\0\0\0\0", 6) == 0) {
+		printf("ERROR: ethaddr not set!\n");
+		return -1;
+	}
+
+#if defined(CONFIG_440GX) || \
+    defined(CONFIG_440EPX) || defined(CONFIG_440GRX) || \
+    defined(CONFIG_440SP) || defined(CONFIG_440SPE) || \
+    defined(CONFIG_460EX) || defined(CONFIG_460GT) || \
+    defined(CONFIG_405EX)
+	/* Need to get the OPB frequency so we can access the PHY */
+	get_sys_info (&sysinfo);
+#endif
+
+	msr = mfmsr ();
+	mtmsr (msr & ~(MSR_EE));	/* disable interrupts */
+
+	devnum = hw_p->devnum;
+
+#ifdef INFO_4XX_ENET
+	/* AS.HARNOIS
+	 * We should have :
+	 * hw_p->stats.pkts_handled <=	hw_p->stats.pkts_rx <= hw_p->stats.pkts_handled+PKTBUFSRX
+	 * In the most cases hw_p->stats.pkts_handled = hw_p->stats.pkts_rx, but it
+	 * is possible that new packets (without relationship with
+	 * current transfer) have got the time to arrived before
+	 * netloop calls eth_halt
+	 */
+	printf ("About preceeding transfer (eth%d):\n"
+		"- Sent packet number %d\n"
+		"- Received packet number %d\n"
+		"- Handled packet number %d\n",
+		hw_p->devnum,
+		hw_p->stats.pkts_tx,
+		hw_p->stats.pkts_rx, hw_p->stats.pkts_handled);
+
+	hw_p->stats.pkts_tx = 0;
+	hw_p->stats.pkts_rx = 0;
+	hw_p->stats.pkts_handled = 0;
+	hw_p->print_speed = 1;	/* print speed message again next time */
+#endif
+
+	hw_p->tx_err_index = 0; /* Transmit Error Index for tx_err_log */
+	hw_p->rx_err_index = 0; /* Receive Error Index for rx_err_log */
+
+	hw_p->rx_slot = 0;	/* MAL Receive Slot */
+	hw_p->rx_i_index = 0;	/* Receive Interrupt Queue Index */
+	hw_p->rx_u_index = 0;	/* Receive User Queue Index */
+
+	hw_p->tx_slot = 0;	/* MAL Transmit Slot */
+	hw_p->tx_i_index = 0;	/* Transmit Interrupt Queue Index */
+	hw_p->tx_u_index = 0;	/* Transmit User Queue Index */
+
+#if defined(CONFIG_440) && !defined(CONFIG_440SP) && !defined(CONFIG_440SPE)
+	/* set RMII mode */
+	/* NOTE: 440GX spec states that mode is mutually exclusive */
+	/* NOTE: Therefore, disable all other EMACS, since we handle */
+	/* NOTE: only one emac at a time */
+	reg = 0;
+	out_be32((void *)ZMII_FER, 0);
+	udelay (100);
+
+#if defined(CONFIG_440GP) || defined(CONFIG_440EP) || defined(CONFIG_440GR)
+	out_be32((void *)ZMII_FER, (ZMII_FER_RMII | ZMII_FER_MDI) << ZMII_FER_V (devnum));
+#elif defined(CONFIG_440GX) || \
+    defined(CONFIG_440EPX) || defined(CONFIG_440GRX) || \
+    defined(CONFIG_460EX) || defined(CONFIG_460GT)
+	ethgroup = ppc_4xx_eth_setup_bridge(devnum, bis);
+#endif
+
+	out_be32((void *)ZMII_SSR, ZMII_SSR_SP << ZMII_SSR_V(devnum));
+#endif /* defined(CONFIG_440) && !defined(CONFIG_440SP) */
+#if defined(CONFIG_405EX)
+	ethgroup = ppc_4xx_eth_setup_bridge(devnum, bis);
+#endif
+
+	sync();
+
+	/* provide clocks for EMAC internal loopback  */
+	emac_loopback_enable(hw_p);
+
+	/* EMAC RESET */
+	out_be32((void *)EMAC_M0 + hw_p->hw_addr, EMAC_M0_SRST);
+
+	/* remove clocks for EMAC internal loopback  */
+	emac_loopback_disable(hw_p);
+
+	failsafe = 1000;
+	while ((in_be32((void *)EMAC_M0 + hw_p->hw_addr) & (EMAC_M0_SRST)) && failsafe) {
+		udelay (1000);
+		failsafe--;
+	}
+	if (failsafe <= 0)
+		printf("\nProblem resetting EMAC!\n");
+
+#if defined(CONFIG_440GX) || \
+    defined(CONFIG_440EPX) || defined(CONFIG_440GRX) || \
+    defined(CONFIG_440SP) || defined(CONFIG_440SPE) || \
+    defined(CONFIG_460EX) || defined(CONFIG_460GT) || \
+    defined(CONFIG_405EX)
+	/* Whack the M1 register */
+	mode_reg = 0x0;
+	mode_reg &= ~0x00000038;
+	if (sysinfo.freqOPB <= 50000000);
+	else if (sysinfo.freqOPB <= 66666667)
+		mode_reg |= EMAC_M1_OBCI_66;
+	else if (sysinfo.freqOPB <= 83333333)
+		mode_reg |= EMAC_M1_OBCI_83;
+	else if (sysinfo.freqOPB <= 100000000)
+		mode_reg |= EMAC_M1_OBCI_100;
+	else
+		mode_reg |= EMAC_M1_OBCI_GT100;
+
+	out_be32((void *)EMAC_M1 + hw_p->hw_addr, mode_reg);
+#endif /* defined(CONFIG_440GX) || defined(CONFIG_440SP) */
+
+#if defined(CONFIG_GPCS_PHY_ADDR) || defined(CONFIG_GPCS_PHY1_ADDR) || \
+    defined(CONFIG_GPCS_PHY2_ADDR) || defined(CONFIG_GPCS_PHY3_ADDR)
+	if (bis->bi_phymode[devnum] == BI_PHYMODE_SGMII) {
+		/*
+		 * In SGMII mode, GPCS access is needed for
+		 * communication with the internal SGMII SerDes.
+		 */
+		switch (devnum) {
+#if defined(CONFIG_GPCS_PHY_ADDR)
+		case 0:
+			reg = CONFIG_GPCS_PHY_ADDR;
+			break;
+#endif
+#if defined(CONFIG_GPCS_PHY1_ADDR)
+		case 1:
+			reg = CONFIG_GPCS_PHY1_ADDR;
+			break;
+#endif
+#if defined(CONFIG_GPCS_PHY2_ADDR)
+		case 2:
+			reg = CONFIG_GPCS_PHY2_ADDR;
+			break;
+#endif
+#if defined(CONFIG_GPCS_PHY3_ADDR)
+		case 3:
+			reg = CONFIG_GPCS_PHY3_ADDR;
+			break;
+#endif
+		}
+
+		mode_reg = in_be32((void *)EMAC_M1 + hw_p->hw_addr);
+		mode_reg |= EMAC_M1_MF_1000GPCS | EMAC_M1_IPPA_SET(reg);
+		out_be32((void *)EMAC_M1 + hw_p->hw_addr, mode_reg);
+
+		/* Configure GPCS interface to recommended setting for SGMII */
+		miiphy_reset(dev->name, reg);
+		miiphy_write(dev->name, reg, 0x04, 0x8120); /* AsymPause, FDX */
+		miiphy_write(dev->name, reg, 0x07, 0x2801); /* msg_pg, toggle */
+		miiphy_write(dev->name, reg, 0x00, 0x0140); /* 1Gbps, FDX     */
+	}
+#endif /* defined(CONFIG_GPCS_PHY_ADDR) */
+
+	/* wait for PHY to complete auto negotiation */
+	reg_short = 0;
+	switch (devnum) {
+	case 0:
+		reg = CONFIG_PHY_ADDR;
+		break;
+#if defined (CONFIG_PHY1_ADDR)
+	case 1:
+		reg = CONFIG_PHY1_ADDR;
+		break;
+#endif
+#if defined (CONFIG_PHY2_ADDR)
+	case 2:
+		reg = CONFIG_PHY2_ADDR;
+		break;
+#endif
+#if defined (CONFIG_PHY3_ADDR)
+	case 3:
+		reg = CONFIG_PHY3_ADDR;
+		break;
+#endif
+	default:
+		reg = CONFIG_PHY_ADDR;
+		break;
+	}
+
+	bis->bi_phynum[devnum] = reg;
+
+	if (reg == CONFIG_FIXED_PHY)
+		goto get_speed;
+
+#if defined(CONFIG_PHY_RESET)
+	/*
+	 * Reset the phy, only if its the first time through
+	 * otherwise, just check the speeds & feeds
+	 */
+	if (hw_p->first_init == 0) {
+#if defined(CONFIG_M88E1111_PHY)
+		miiphy_write (dev->name, reg, 0x14, 0x0ce3);
+		miiphy_write (dev->name, reg, 0x18, 0x4101);
+		miiphy_write (dev->name, reg, 0x09, 0x0e00);
+		miiphy_write (dev->name, reg, 0x04, 0x01e1);
+#endif
+#if defined(CONFIG_M88E1112_PHY)
+		if (bis->bi_phymode[devnum] == BI_PHYMODE_SGMII) {
+			/*
+			 * Marvell 88E1112 PHY needs to have the SGMII MAC
+			 * interace (page 2) properly configured to
+			 * communicate with the 460EX/GT GPCS interface.
+			 */
+
+			/* Set access to Page 2 */
+			miiphy_write(dev->name, reg, 0x16, 0x0002);
+
+			miiphy_write(dev->name, reg, 0x00, 0x0040); /* 1Gbps */
+			miiphy_read(dev->name, reg, 0x1a, &reg_short);
+			reg_short |= 0x8000; /* bypass Auto-Negotiation */
+			miiphy_write(dev->name, reg, 0x1a, reg_short);
+			miiphy_reset(dev->name, reg); /* reset MAC interface */
+
+			/* Reset access to Page 0 */
+			miiphy_write(dev->name, reg, 0x16, 0x0000);
+		}
+#endif /* defined(CONFIG_M88E1112_PHY) */
+		miiphy_reset (dev->name, reg);
+
+#if defined(CONFIG_440GX) || \
+    defined(CONFIG_440EPX) || defined(CONFIG_440GRX) || \
+    defined(CONFIG_440SP) || defined(CONFIG_440SPE) || \
+    defined(CONFIG_460EX) || defined(CONFIG_460GT) || \
+    defined(CONFIG_405EX)
+
+#if defined(CONFIG_CIS8201_PHY)
+		/*
+		 * Cicada 8201 PHY needs to have an extended register whacked
+		 * for RGMII mode.
+		 */
+		if (((devnum == 2) || (devnum == 3)) && (4 == ethgroup)) {
+#if defined(CONFIG_CIS8201_SHORT_ETCH)
+			miiphy_write (dev->name, reg, 23, 0x1300);
+#else
+			miiphy_write (dev->name, reg, 23, 0x1000);
+#endif
+			/*
+			 * Vitesse VSC8201/Cicada CIS8201 errata:
+			 * Interoperability problem with Intel 82547EI phys
+			 * This work around (provided by Vitesse) changes
+			 * the default timer convergence from 8ms to 12ms
+			 */
+			miiphy_write (dev->name, reg, 0x1f, 0x2a30);
+			miiphy_write (dev->name, reg, 0x08, 0x0200);
+			miiphy_write (dev->name, reg, 0x1f, 0x52b5);
+			miiphy_write (dev->name, reg, 0x02, 0x0004);
+			miiphy_write (dev->name, reg, 0x01, 0x0671);
+			miiphy_write (dev->name, reg, 0x00, 0x8fae);
+			miiphy_write (dev->name, reg, 0x1f, 0x2a30);
+			miiphy_write (dev->name, reg, 0x08, 0x0000);
+			miiphy_write (dev->name, reg, 0x1f, 0x0000);
+			/* end Vitesse/Cicada errata */
+		}
+#endif /* defined(CONFIG_CIS8201_PHY) */
+
+#if defined(CONFIG_ET1011C_PHY)
+		/*
+		 * Agere ET1011c PHY needs to have an extended register whacked
+		 * for RGMII mode.
+		 */
+		if (((devnum == 2) || (devnum ==3)) && (4 == ethgroup)) {
+			miiphy_read (dev->name, reg, 0x16, &reg_short);
+			reg_short &= ~(0x7);
+			reg_short |= 0x6;	/* RGMII DLL Delay*/
+			miiphy_write (dev->name, reg, 0x16, reg_short);
+
+			miiphy_read (dev->name, reg, 0x17, &reg_short);
+			reg_short &= ~(0x40);
+			miiphy_write (dev->name, reg, 0x17, reg_short);
+
+			miiphy_write(dev->name, reg, 0x1c, 0x74f0);
+		}
+#endif /* defined(CONFIG_ET1011C_PHY) */
+
+#endif /* defined(CONFIG_440GX) ... */
+		/* Start/Restart autonegotiation */
+		phy_setup_aneg (dev->name, reg);
+		udelay (1000);
+	}
+#endif /* defined(CONFIG_PHY_RESET) */
+
+	miiphy_read (dev->name, reg, PHY_BMSR, &reg_short);
+
+	/*
+	 * Wait if PHY is capable of autonegotiation and autonegotiation is not complete
+	 */
+	if ((reg_short & PHY_BMSR_AUTN_ABLE)
+	    && !(reg_short & PHY_BMSR_AUTN_COMP)) {
+		puts ("Waiting for PHY auto negotiation to complete");
+		i = 0;
+		while (!(reg_short & PHY_BMSR_AUTN_COMP)) {
+			/*
+			 * Timeout reached ?
+			 */
+			if (i > PHY_AUTONEGOTIATE_TIMEOUT) {
+				puts (" TIMEOUT !\n");
+				break;
+			}
+
+			if ((i++ % 1000) == 0) {
+				putc ('.');
+			}
+			udelay (1000);	/* 1 ms */
+			miiphy_read (dev->name, reg, PHY_BMSR, &reg_short);
+		}
+		puts (" done\n");
+		udelay (500000);	/* another 500 ms (results in faster booting) */
+	}
+
+get_speed:
+	if (reg == CONFIG_FIXED_PHY) {
+		for (i = 0; i < ARRAY_SIZE(fixed_phy_port); i++) {
+			if (devnum == fixed_phy_port[i].devnum) {
+				speed = fixed_phy_port[i].speed;
+				duplex = fixed_phy_port[i].duplex;
+				break;
+			}
+		}
+
+		if (i == ARRAY_SIZE(fixed_phy_port)) {
+			printf("ERROR: PHY (%s) not configured correctly!\n",
+				dev->name);
+			return -1;
+		}
+	} else {
+		speed = miiphy_speed(dev->name, reg);
+		duplex = miiphy_duplex(dev->name, reg);
+	}
+
+	if (hw_p->print_speed) {
+		hw_p->print_speed = 0;
+		printf ("ENET Speed is %d Mbps - %s duplex connection (EMAC%d)\n",
+			(int) speed, (duplex == HALF) ? "HALF" : "FULL",
+			hw_p->devnum);
+	}
+
+#if defined(CONFIG_440) && \
+    !defined(CONFIG_440SP) && !defined(CONFIG_440SPE) && \
+    !defined(CONFIG_440EPX) && !defined(CONFIG_440GRX) && \
+    !defined(CONFIG_460EX) && !defined(CONFIG_460GT)
+#if defined(CONFIG_440EP) || defined(CONFIG_440GR)
+	mfsdr(sdr_mfr, reg);
+	if (speed == 100) {
+		reg = (reg & ~SDR0_MFR_ZMII_MODE_MASK) | SDR0_MFR_ZMII_MODE_RMII_100M;
+	} else {
+		reg = (reg & ~SDR0_MFR_ZMII_MODE_MASK) | SDR0_MFR_ZMII_MODE_RMII_10M;
+	}
+	mtsdr(sdr_mfr, reg);
+#endif
+
+	/* Set ZMII/RGMII speed according to the phy link speed */
+	reg = in_be32((void *)ZMII_SSR);
+	if ( (speed == 100) || (speed == 1000) )
+		out_be32((void *)ZMII_SSR, reg | (ZMII_SSR_SP << ZMII_SSR_V (devnum)));
+	else
+		out_be32((void *)ZMII_SSR, reg & (~(ZMII_SSR_SP << ZMII_SSR_V (devnum))));
+
+	if ((devnum == 2) || (devnum == 3)) {
+		if (speed == 1000)
+			reg = (RGMII_SSR_SP_1000MBPS << RGMII_SSR_V (devnum));
+		else if (speed == 100)
+			reg = (RGMII_SSR_SP_100MBPS << RGMII_SSR_V (devnum));
+		else if (speed == 10)
+			reg = (RGMII_SSR_SP_10MBPS << RGMII_SSR_V (devnum));
+		else {
+			printf("Error in RGMII Speed\n");
+			return -1;
+		}
+		out_be32((void *)RGMII_SSR, reg);
+	}
+#endif /* defined(CONFIG_440) && !defined(CONFIG_440SP) */
+
+#if defined(CONFIG_440EPX) || defined(CONFIG_440GRX) || \
+    defined(CONFIG_460EX) || defined(CONFIG_460GT) || \
+    defined(CONFIG_405EX)
+	if (devnum >= 2)
+		rgmii_channel = devnum - 2;
+	else
+		rgmii_channel = devnum;
+
+	if (speed == 1000)
+		reg = (RGMII_SSR_SP_1000MBPS << RGMII_SSR_V(rgmii_channel));
+	else if (speed == 100)
+		reg = (RGMII_SSR_SP_100MBPS << RGMII_SSR_V(rgmii_channel));
+	else if (speed == 10)
+		reg = (RGMII_SSR_SP_10MBPS << RGMII_SSR_V(rgmii_channel));
+	else {
+		printf("Error in RGMII Speed\n");
+		return -1;
+	}
+	out_be32((void *)RGMII_SSR, reg);
+#if defined(CONFIG_460GT)
+	if ((devnum == 2) || (devnum == 3))
+		out_be32((void *)RGMII_SSR + RGMII1_BASE_OFFSET, reg);
+#endif
+#endif
+
+	/* set the Mal configuration reg */
+#if defined(CONFIG_440GX) || \
+    defined(CONFIG_440EPX) || defined(CONFIG_440GRX) || \
+    defined(CONFIG_440SP) || defined(CONFIG_440SPE) || \
+    defined(CONFIG_460EX) || defined(CONFIG_460GT) || \
+    defined(CONFIG_405EX)
+	mtdcr (malmcr, MAL_CR_PLBB | MAL_CR_OPBBL | MAL_CR_LEA |
+	       MAL_CR_PLBLT_DEFAULT | MAL_CR_EOPIE | 0x00330000);
+#else
+	mtdcr (malmcr, MAL_CR_PLBB | MAL_CR_OPBBL | MAL_CR_LEA | MAL_CR_PLBLT_DEFAULT);
+	/* Errata 1.12: MAL_1 -- Disable MAL bursting */
+	if (get_pvr() == PVR_440GP_RB) {
+		mtdcr (malmcr, mfdcr(malmcr) & ~MAL_CR_PLBB);
+	}
+#endif
+
+	/*
+	 * Malloc MAL buffer desciptors, make sure they are
+	 * aligned on cache line boundary size
+	 * (401/403/IOP480 = 16, 405 = 32)
+	 * and doesn't cross cache block boundaries.
+	 */
+	if (hw_p->first_init == 0) {
+		debug("*** Allocating descriptor memory ***\n");
+
+		bd_cached = (u32)malloc_aligned(MAL_ALLOC_SIZE, 4096);
+		if (!bd_cached) {
+			printf("%s: Error allocating MAL descriptor buffers!\n", __func__);
+			return -1;
+		}
+
+#ifdef CONFIG_4xx_DCACHE
+		flush_dcache_range(bd_cached, bd_cached + MAL_ALLOC_SIZE);
+		if (!last_used_ea)
+#if defined(CONFIG_SYS_MEM_TOP_HIDE)
+			bd_uncached = bis->bi_memsize + CONFIG_SYS_MEM_TOP_HIDE;
+#else
+			bd_uncached = bis->bi_memsize;
+#endif
+		else
+			bd_uncached = last_used_ea + MAL_ALLOC_SIZE;
+
+		last_used_ea = bd_uncached;
+		program_tlb(bd_cached, bd_uncached, MAL_ALLOC_SIZE,
+			    TLB_WORD2_I_ENABLE);
+#else
+		bd_uncached = bd_cached;
+#endif
+		hw_p->tx_phys = bd_cached;
+		hw_p->rx_phys = bd_cached + MAL_TX_DESC_SIZE;
+		hw_p->tx = (mal_desc_t *)(bd_uncached);
+		hw_p->rx = (mal_desc_t *)(bd_uncached + MAL_TX_DESC_SIZE);
+		debug("hw_p->tx=%08x, hw_p->rx=%08x\n", hw_p->tx, hw_p->rx);
+	}
+
+	for (i = 0; i < NUM_TX_BUFF; i++) {
+		hw_p->tx[i].ctrl = 0;
+		hw_p->tx[i].data_len = 0;
+		if (hw_p->first_init == 0)
+			hw_p->txbuf_ptr = malloc_aligned(MAL_ALLOC_SIZE,
+							 L1_CACHE_BYTES);
+		hw_p->tx[i].data_ptr = hw_p->txbuf_ptr;
+		if ((NUM_TX_BUFF - 1) == i)
+			hw_p->tx[i].ctrl |= MAL_TX_CTRL_WRAP;
+		hw_p->tx_run[i] = -1;
+		debug("TX_BUFF %d @ 0x%08lx\n", i, (u32)hw_p->tx[i].data_ptr);
+	}
+
+	for (i = 0; i < NUM_RX_BUFF; i++) {
+		hw_p->rx[i].ctrl = 0;
+		hw_p->rx[i].data_len = 0;
+		hw_p->rx[i].data_ptr = (char *)NetRxPackets[i];
+		if ((NUM_RX_BUFF - 1) == i)
+			hw_p->rx[i].ctrl |= MAL_RX_CTRL_WRAP;
+		hw_p->rx[i].ctrl |= MAL_RX_CTRL_EMPTY | MAL_RX_CTRL_INTR;
+		hw_p->rx_ready[i] = -1;
+		debug("RX_BUFF %d @ 0x%08lx\n", i, (u32)hw_p->rx[i].data_ptr);
+	}
+
+	reg = 0x00000000;
+
+	reg |= dev->enetaddr[0];	/* set high address */
+	reg = reg << 8;
+	reg |= dev->enetaddr[1];
+
+	out_be32((void *)EMAC_IAH + hw_p->hw_addr, reg);
+
+	reg = 0x00000000;
+	reg |= dev->enetaddr[2];	/* set low address  */
+	reg = reg << 8;
+	reg |= dev->enetaddr[3];
+	reg = reg << 8;
+	reg |= dev->enetaddr[4];
+	reg = reg << 8;
+	reg |= dev->enetaddr[5];
+
+	out_be32((void *)EMAC_IAL + hw_p->hw_addr, reg);
+
+	switch (devnum) {
+	case 1:
+		/* setup MAL tx & rx channel pointers */
+#if defined (CONFIG_405EP) || defined (CONFIG_440EP) || defined (CONFIG_440GR)
+		mtdcr (maltxctp2r, hw_p->tx_phys);
+#else
+		mtdcr (maltxctp1r, hw_p->tx_phys);
+#endif
+#if defined(CONFIG_440)
+		mtdcr (maltxbattr, 0x0);
+		mtdcr (malrxbattr, 0x0);
+#endif
+
+#if defined(CONFIG_460EX) || defined(CONFIG_460GT)
+		mtdcr (malrxctp8r, hw_p->rx_phys);
+		/* set RX buffer size */
+		mtdcr (malrcbs8, ENET_MAX_MTU_ALIGNED / 16);
+#else
+		mtdcr (malrxctp1r, hw_p->rx_phys);
+		/* set RX buffer size */
+		mtdcr (malrcbs1, ENET_MAX_MTU_ALIGNED / 16);
+#endif
+		break;
+#if defined (CONFIG_440GX)
+	case 2:
+		/* setup MAL tx & rx channel pointers */
+		mtdcr (maltxbattr, 0x0);
+		mtdcr (malrxbattr, 0x0);
+		mtdcr (maltxctp2r, hw_p->tx_phys);
+		mtdcr (malrxctp2r, hw_p->rx_phys);
+		/* set RX buffer size */
+		mtdcr (malrcbs2, ENET_MAX_MTU_ALIGNED / 16);
+		break;
+	case 3:
+		/* setup MAL tx & rx channel pointers */
+		mtdcr (maltxbattr, 0x0);
+		mtdcr (maltxctp3r, hw_p->tx_phys);
+		mtdcr (malrxbattr, 0x0);
+		mtdcr (malrxctp3r, hw_p->rx_phys);
+		/* set RX buffer size */
+		mtdcr (malrcbs3, ENET_MAX_MTU_ALIGNED / 16);
+		break;
+#endif /* CONFIG_440GX */
+#if defined (CONFIG_460GT)
+	case 2:
+		/* setup MAL tx & rx channel pointers */
+		mtdcr (maltxbattr, 0x0);
+		mtdcr (malrxbattr, 0x0);
+		mtdcr (maltxctp2r, hw_p->tx_phys);
+		mtdcr (malrxctp16r, hw_p->rx_phys);
+		/* set RX buffer size */
+		mtdcr (malrcbs16, ENET_MAX_MTU_ALIGNED / 16);
+		break;
+	case 3:
+		/* setup MAL tx & rx channel pointers */
+		mtdcr (maltxbattr, 0x0);
+		mtdcr (malrxbattr, 0x0);
+		mtdcr (maltxctp3r, hw_p->tx_phys);
+		mtdcr (malrxctp24r, hw_p->rx_phys);
+		/* set RX buffer size */
+		mtdcr (malrcbs24, ENET_MAX_MTU_ALIGNED / 16);
+		break;
+#endif /* CONFIG_460GT */
+	case 0:
+	default:
+		/* setup MAL tx & rx channel pointers */
+#if defined(CONFIG_440)
+		mtdcr (maltxbattr, 0x0);
+		mtdcr (malrxbattr, 0x0);
+#endif
+		mtdcr (maltxctp0r, hw_p->tx_phys);
+		mtdcr (malrxctp0r, hw_p->rx_phys);
+		/* set RX buffer size */
+		mtdcr (malrcbs0, ENET_MAX_MTU_ALIGNED / 16);
+		break;
+	}
+
+	/* Enable MAL transmit and receive channels */
+#if defined(CONFIG_405EP) || defined(CONFIG_440EP) || defined(CONFIG_440GR)
+	mtdcr (maltxcasr, (MAL_TXRX_CASR >> (hw_p->devnum*2)));
+#else
+	mtdcr (maltxcasr, (MAL_TXRX_CASR >> hw_p->devnum));
+#endif
+	mtdcr (malrxcasr, (MAL_TXRX_CASR >> hw_p->devnum));
+
+	/* set transmit enable & receive enable */
+	out_be32((void *)EMAC_M0 + hw_p->hw_addr, EMAC_M0_TXE | EMAC_M0_RXE);
+
+	mode_reg = in_be32((void *)EMAC_M1 + hw_p->hw_addr);
+
+	/* set rx-/tx-fifo size */
+	mode_reg = (mode_reg & ~EMAC_MR1_FIFO_MASK) | EMAC_MR1_FIFO_SIZE;
+
+	/* set speed */
+	if (speed == _1000BASET) {
+#if defined(CONFIG_440EPX) || defined(CONFIG_440GRX) || \
+    defined(CONFIG_440SP) || defined(CONFIG_440SPE)
+		unsigned long pfc1;
+
+		mfsdr (sdr_pfc1, pfc1);
+		pfc1 |= SDR0_PFC1_EM_1000;
+		mtsdr (sdr_pfc1, pfc1);
+#endif
+		mode_reg = mode_reg | EMAC_M1_MF_1000MBPS | EMAC_M1_IST;
+	} else if (speed == _100BASET)
+		mode_reg = mode_reg | EMAC_M1_MF_100MBPS | EMAC_M1_IST;
+	else
+		mode_reg = mode_reg & ~0x00C00000;	/* 10 MBPS */
+	if (duplex == FULL)
+		mode_reg = mode_reg | 0x80000000 | EMAC_M1_IST;
+
+	out_be32((void *)EMAC_M1 + hw_p->hw_addr, mode_reg);
+
+	/* Enable broadcast and indvidual address */
+	/* TBS: enabling runts as some misbehaved nics will send runts */
+	out_be32((void *)EMAC_RXM + hw_p->hw_addr, EMAC_RMR_BAE | EMAC_RMR_IAE);
+
+	/* we probably need to set the tx mode1 reg? maybe at tx time */
+
+	/* set transmit request threshold register */
+	out_be32((void *)EMAC_TRTR + hw_p->hw_addr, 0x18000000);	/* 256 byte threshold */
+
+	/* set receive	low/high water mark register */
+#if defined(CONFIG_440)
+	/* 440s has a 64 byte burst length */
+	out_be32((void *)EMAC_RX_HI_LO_WMARK + hw_p->hw_addr, 0x80009000);
+#else
+	/* 405s have a 16 byte burst length */
+	out_be32((void *)EMAC_RX_HI_LO_WMARK + hw_p->hw_addr, 0x0f002000);
+#endif /* defined(CONFIG_440) */
+	out_be32((void *)EMAC_TXM1 + hw_p->hw_addr, 0xf8640000);
+
+	/* Set fifo limit entry in tx mode 0 */
+	out_be32((void *)EMAC_TXM0 + hw_p->hw_addr, 0x00000003);
+	/* Frame gap set */
+	out_be32((void *)EMAC_I_FRAME_GAP_REG + hw_p->hw_addr, 0x00000008);
+
+	/* Set EMAC IER */
+	hw_p->emac_ier = EMAC_ISR_PTLE | EMAC_ISR_BFCS | EMAC_ISR_ORE | EMAC_ISR_IRE;
+	if (speed == _100BASET)
+		hw_p->emac_ier = hw_p->emac_ier | EMAC_ISR_SYE;
+
+	out_be32((void *)EMAC_ISR + hw_p->hw_addr, 0xffffffff);	/* clear pending interrupts */
+	out_be32((void *)EMAC_IER + hw_p->hw_addr, hw_p->emac_ier);
+
+	if (hw_p->first_init == 0) {
+		/*
+		 * Connect interrupt service routines
+		 */
+		irq_install_handler(ETH_IRQ_NUM(hw_p->devnum),
+				    (interrupt_handler_t *) enetInt, dev);
+	}
+
+	mtmsr (msr);		/* enable interrupts again */
+
+	hw_p->bis = bis;
+	hw_p->first_init = 1;
+
+	return 0;
+}
+
+
+static int ppc_4xx_eth_send (struct eth_device *dev, volatile void *ptr,
+			      int len)
+{
+	struct enet_frame *ef_ptr;
+	ulong time_start, time_now;
+	unsigned long temp_txm0;
+	EMAC_4XX_HW_PST hw_p = dev->priv;
+
+	ef_ptr = (struct enet_frame *) ptr;
+
+	/*-----------------------------------------------------------------------+
+	 *  Copy in our address into the frame.
+	 *-----------------------------------------------------------------------*/
+	(void) memcpy (ef_ptr->source_addr, dev->enetaddr, ENET_ADDR_LENGTH);
+
+	/*-----------------------------------------------------------------------+
+	 * If frame is too long or too short, modify length.
+	 *-----------------------------------------------------------------------*/
+	/* TBS: where does the fragment go???? */
+	if (len > ENET_MAX_MTU)
+		len = ENET_MAX_MTU;
+
+	/*   memcpy ((void *) &tx_buff[tx_slot], (const void *) ptr, len); */
+	memcpy ((void *) hw_p->txbuf_ptr, (const void *) ptr, len);
+	flush_dcache_range((u32)hw_p->txbuf_ptr, (u32)hw_p->txbuf_ptr + len);
+
+	/*-----------------------------------------------------------------------+
+	 * set TX Buffer busy, and send it
+	 *-----------------------------------------------------------------------*/
+	hw_p->tx[hw_p->tx_slot].ctrl = (MAL_TX_CTRL_LAST |
+					EMAC_TX_CTRL_GFCS | EMAC_TX_CTRL_GP) &
+		~(EMAC_TX_CTRL_ISA | EMAC_TX_CTRL_RSA);
+	if ((NUM_TX_BUFF - 1) == hw_p->tx_slot)
+		hw_p->tx[hw_p->tx_slot].ctrl |= MAL_TX_CTRL_WRAP;
+
+	hw_p->tx[hw_p->tx_slot].data_len = (short) len;
+	hw_p->tx[hw_p->tx_slot].ctrl |= MAL_TX_CTRL_READY;
+
+	sync();
+
+	out_be32((void *)EMAC_TXM0 + hw_p->hw_addr,
+		 in_be32((void *)EMAC_TXM0 + hw_p->hw_addr) | EMAC_TXM0_GNP0);
+#ifdef INFO_4XX_ENET
+	hw_p->stats.pkts_tx++;
+#endif
+
+	/*-----------------------------------------------------------------------+
+	 * poll unitl the packet is sent and then make sure it is OK
+	 *-----------------------------------------------------------------------*/
+	time_start = get_timer (0);
+	while (1) {
+		temp_txm0 = in_be32((void *)EMAC_TXM0 + hw_p->hw_addr);
+		/* loop until either TINT turns on or 3 seconds elapse */
+		if ((temp_txm0 & EMAC_TXM0_GNP0) != 0) {
+			/* transmit is done, so now check for errors
+			 * If there is an error, an interrupt should
+			 * happen when we return
+			 */
+			time_now = get_timer (0);
+			if ((time_now - time_start) > 3000) {
+				return (-1);
+			}
+		} else {
+			return (len);
+		}
+	}
+}
+
+int enetInt (struct eth_device *dev)
+{
+	int serviced;
+	int rc = -1;		/* default to not us */
+	u32 mal_isr;
+	u32 emac_isr = 0;
+	u32 mal_eob;
+	u32 uic_mal;
+	u32 uic_mal_err;
+	u32 uic_emac;
+	u32 uic_emac_b;
+	EMAC_4XX_HW_PST hw_p;
+
+	/*
+	 * Because the mal is generic, we need to get the current
+	 * eth device
+	 */
+#if defined(CONFIG_NET_MULTI)
+	dev = eth_get_dev();
+#else
+	dev = emac0_dev;
+#endif
+
+	hw_p = dev->priv;
+
+	/* enter loop that stays in interrupt code until nothing to service */
+	do {
+		serviced = 0;
+
+		uic_mal = mfdcr(UIC_BASE_MAL + UIC_MSR);
+		uic_mal_err = mfdcr(UIC_BASE_MAL_ERR + UIC_MSR);
+		uic_emac = mfdcr(UIC_BASE_EMAC + UIC_MSR);
+		uic_emac_b = mfdcr(UIC_BASE_EMAC_B + UIC_MSR);
+
+		if (!(uic_mal & (UIC_MAL_RXEOB | UIC_MAL_TXEOB))
+		    && !(uic_mal_err & (UIC_MAL_SERR | UIC_MAL_TXDE | UIC_MAL_RXDE))
+		    && !(uic_emac & UIC_ETHx) && !(uic_emac_b & UIC_ETHxB)) {
+			/* not for us */
+			return (rc);
+		}
+
+		/* get and clear controller status interrupts */
+		/* look at MAL and EMAC error interrupts */
+		if (uic_mal_err & (UIC_MAL_SERR | UIC_MAL_TXDE | UIC_MAL_RXDE)) {
+			/* we have a MAL error interrupt */
+			mal_isr = mfdcr(malesr);
+			mal_err(dev, mal_isr, uic_mal_err,
+				 MAL_UIC_DEF, MAL_UIC_ERR);
+
+			/* clear MAL error interrupt status bits */
+			mtdcr(UIC_BASE_MAL_ERR + UIC_SR,
+			      UIC_MAL_SERR | UIC_MAL_TXDE | UIC_MAL_RXDE);
+
+			return -1;
+		}
+
+		/* look for EMAC errors */
+		if ((uic_emac & UIC_ETHx) || (uic_emac_b & UIC_ETHxB)) {
+			emac_isr = in_be32((void *)EMAC_ISR + hw_p->hw_addr);
+			emac_err(dev, emac_isr);
+
+			/* clear EMAC error interrupt status bits */
+			mtdcr(UIC_BASE_EMAC + UIC_SR, UIC_ETHx);
+			mtdcr(UIC_BASE_EMAC_B + UIC_SR, UIC_ETHxB);
+
+			return -1;
+		}
+
+		/* handle MAX TX EOB interrupt from a tx */
+		if (uic_mal & UIC_MAL_TXEOB) {
+			/* clear MAL interrupt status bits */
+			mal_eob = mfdcr(maltxeobisr);
+			mtdcr(maltxeobisr, mal_eob);
+			mtdcr(UIC_BASE_MAL + UIC_SR, UIC_MAL_TXEOB);
+
+			/* indicate that we serviced an interrupt */
+			serviced = 1;
+			rc = 0;
+		}
+
+		/* handle MAL RX EOB interupt from a receive */
+		/* check for EOB on valid channels	     */
+		if (uic_mal & UIC_MAL_RXEOB) {
+			mal_eob = mfdcr(malrxeobisr);
+			if (mal_eob &
+			    (0x80000000 >> (hw_p->devnum * MAL_RX_CHAN_MUL))) {
+				/* push packet to upper layer */
+				enet_rcv(dev, emac_isr);
+
+				/* clear MAL interrupt status bits */
+				mtdcr(UIC_BASE_MAL + UIC_SR, UIC_MAL_RXEOB);
+
+				/* indicate that we serviced an interrupt */
+				serviced = 1;
+				rc = 0;
+			}
+		}
+	} while (serviced);
+
+	return (rc);
+}
+
+/*-----------------------------------------------------------------------------+
+ *  MAL Error Routine
+ *-----------------------------------------------------------------------------*/
+static void mal_err (struct eth_device *dev, unsigned long isr,
+		     unsigned long uic, unsigned long maldef,
+		     unsigned long mal_errr)
+{
+	EMAC_4XX_HW_PST hw_p = dev->priv;
+
+	mtdcr (malesr, isr);	/* clear interrupt */
+
+	/* clear DE interrupt */
+	mtdcr (maltxdeir, 0xC0000000);
+	mtdcr (malrxdeir, 0x80000000);
+
+#ifdef INFO_4XX_ENET
+	printf ("\nMAL error occured.... ISR = %lx UIC = = %lx	MAL_DEF = %lx  MAL_ERR= %lx \n", isr, uic, maldef, mal_errr);
+#endif
+
+	eth_init (hw_p->bis);	/* start again... */
+}
+
+/*-----------------------------------------------------------------------------+
+ *  EMAC Error Routine
+ *-----------------------------------------------------------------------------*/
+static void emac_err (struct eth_device *dev, unsigned long isr)
+{
+	EMAC_4XX_HW_PST hw_p = dev->priv;
+
+	printf ("EMAC%d error occured.... ISR = %lx\n", hw_p->devnum, isr);
+	out_be32((void *)EMAC_ISR + hw_p->hw_addr, isr);
+}
+
+/*-----------------------------------------------------------------------------+
+ *  enet_rcv() handles the ethernet receive data
+ *-----------------------------------------------------------------------------*/
+static void enet_rcv (struct eth_device *dev, unsigned long malisr)
+{
+	struct enet_frame *ef_ptr;
+	unsigned long data_len;
+	unsigned long rx_eob_isr;
+	EMAC_4XX_HW_PST hw_p = dev->priv;
+
+	int handled = 0;
+	int i;
+	int loop_count = 0;
+
+	rx_eob_isr = mfdcr (malrxeobisr);
+	if ((0x80000000 >> (hw_p->devnum * MAL_RX_CHAN_MUL)) & rx_eob_isr) {
+		/* clear EOB */
+		mtdcr (malrxeobisr, rx_eob_isr);
+
+		/* EMAC RX done */
+		while (1) {	/* do all */
+			i = hw_p->rx_slot;
+
+			if ((MAL_RX_CTRL_EMPTY & hw_p->rx[i].ctrl)
+			    || (loop_count >= NUM_RX_BUFF))
+				break;
+
+			loop_count++;
+			handled++;
+			data_len = (unsigned long) hw_p->rx[i].data_len & 0x0fff;	/* Get len */
+			if (data_len) {
+				if (data_len > ENET_MAX_MTU)	/* Check len */
+					data_len = 0;
+				else {
+					if (EMAC_RX_ERRORS & hw_p->rx[i].ctrl) {	/* Check Errors */
+						data_len = 0;
+						hw_p->stats.rx_err_log[hw_p->
+								       rx_err_index]
+							= hw_p->rx[i].ctrl;
+						hw_p->rx_err_index++;
+						if (hw_p->rx_err_index ==
+						    MAX_ERR_LOG)
+							hw_p->rx_err_index =
+								0;
+					}	/* emac_erros */
+				}	/* data_len < max mtu */
+			}	/* if data_len */
+			if (!data_len) {	/* no data */
+				hw_p->rx[i].ctrl |= MAL_RX_CTRL_EMPTY;	/* Free Recv Buffer */
+
+				hw_p->stats.data_len_err++;	/* Error at Rx */
+			}
+
+			/* !data_len */
+			/* AS.HARNOIS */
+			/* Check if user has already eaten buffer */
+			/* if not => ERROR */
+			else if (hw_p->rx_ready[hw_p->rx_i_index] != -1) {
+				if (hw_p->is_receiving)
+					printf ("ERROR : Receive buffers are full!\n");
+				break;
+			} else {
+				hw_p->stats.rx_frames++;
+				hw_p->stats.rx += data_len;
+				ef_ptr = (struct enet_frame *) hw_p->rx[i].
+					data_ptr;
+#ifdef INFO_4XX_ENET
+				hw_p->stats.pkts_rx++;
+#endif
+				/* AS.HARNOIS
+				 * use ring buffer
+				 */
+				hw_p->rx_ready[hw_p->rx_i_index] = i;
+				hw_p->rx_i_index++;
+				if (NUM_RX_BUFF == hw_p->rx_i_index)
+					hw_p->rx_i_index = 0;
+
+				hw_p->rx_slot++;
+				if (NUM_RX_BUFF == hw_p->rx_slot)
+					hw_p->rx_slot = 0;
+
+				/*  AS.HARNOIS
+				 * free receive buffer only when
+				 * buffer has been handled (eth_rx)
+				 rx[i].ctrl |= MAL_RX_CTRL_EMPTY;
+				 */
+			}	/* if data_len */
+		}		/* while */
+	}			/* if EMACK_RXCHL */
+}
+
+
+static int ppc_4xx_eth_rx (struct eth_device *dev)
+{
+	int length;
+	int user_index;
+	unsigned long msr;
+	EMAC_4XX_HW_PST hw_p = dev->priv;
+
+	hw_p->is_receiving = 1; /* tell driver */
+
+	for (;;) {
+		/* AS.HARNOIS
+		 * use ring buffer and
+		 * get index from rx buffer desciptor queue
+		 */
+		user_index = hw_p->rx_ready[hw_p->rx_u_index];
+		if (user_index == -1) {
+			length = -1;
+			break;	/* nothing received - leave for() loop */
+		}
+
+		msr = mfmsr ();
+		mtmsr (msr & ~(MSR_EE));
+
+		length = hw_p->rx[user_index].data_len & 0x0fff;
+
+		/* Pass the packet up to the protocol layers. */
+		/*	 NetReceive(NetRxPackets[rxIdx], length - 4); */
+		/*	 NetReceive(NetRxPackets[i], length); */
+		invalidate_dcache_range((u32)hw_p->rx[user_index].data_ptr,
+					(u32)hw_p->rx[user_index].data_ptr +
+					length - 4);
+		NetReceive (NetRxPackets[user_index], length - 4);
+		/* Free Recv Buffer */
+		hw_p->rx[user_index].ctrl |= MAL_RX_CTRL_EMPTY;
+		/* Free rx buffer descriptor queue */
+		hw_p->rx_ready[hw_p->rx_u_index] = -1;
+		hw_p->rx_u_index++;
+		if (NUM_RX_BUFF == hw_p->rx_u_index)
+			hw_p->rx_u_index = 0;
+
+#ifdef INFO_4XX_ENET
+		hw_p->stats.pkts_handled++;
+#endif
+
+		mtmsr (msr);	/* Enable IRQ's */
+	}
+
+	hw_p->is_receiving = 0; /* tell driver */
+
+	return length;
+}
+
+int ppc_4xx_eth_initialize (bd_t * bis)
+{
+	static int virgin = 0;
+	struct eth_device *dev;
+	int eth_num = 0;
+	EMAC_4XX_HW_PST hw = NULL;
+	u8 ethaddr[4 + CONFIG_EMAC_NR_START][6];
+	u32 hw_addr[4];
+	u32 mal_ier;
+
+#if defined(CONFIG_440GX)
+	unsigned long pfc1;
+
+	mfsdr (sdr_pfc1, pfc1);
+	pfc1 &= ~(0x01e00000);
+	pfc1 |= 0x01200000;
+	mtsdr (sdr_pfc1, pfc1);
+#endif
+
+	/* first clear all mac-addresses */
+	for (eth_num = 0; eth_num < LAST_EMAC_NUM; eth_num++)
+		memcpy(ethaddr[eth_num], "\0\0\0\0\0\0", 6);
+
+	for (eth_num = 0; eth_num < LAST_EMAC_NUM; eth_num++) {
+		switch (eth_num) {
+		default:		/* fall through */
+		case 0:
+			memcpy(ethaddr[eth_num + CONFIG_EMAC_NR_START],
+			       bis->bi_enetaddr, 6);
+			hw_addr[eth_num] = 0x0;
+			break;
+#ifdef CONFIG_HAS_ETH1
+		case 1:
+			memcpy(ethaddr[eth_num + CONFIG_EMAC_NR_START],
+			       bis->bi_enet1addr, 6);
+			hw_addr[eth_num] = 0x100;
+			break;
+#endif
+#ifdef CONFIG_HAS_ETH2
+		case 2:
+			memcpy(ethaddr[eth_num + CONFIG_EMAC_NR_START],
+			       bis->bi_enet2addr, 6);
+#if defined(CONFIG_460GT)
+			hw_addr[eth_num] = 0x300;
+#else
+			hw_addr[eth_num] = 0x400;
+#endif
+			break;
+#endif
+#ifdef CONFIG_HAS_ETH3
+		case 3:
+			memcpy(ethaddr[eth_num + CONFIG_EMAC_NR_START],
+			       bis->bi_enet3addr, 6);
+#if defined(CONFIG_460GT)
+			hw_addr[eth_num] = 0x400;
+#else
+			hw_addr[eth_num] = 0x600;
+#endif
+			break;
+#endif
+		}
+	}
+
+	/* set phy num and mode */
+	bis->bi_phynum[0] = CONFIG_PHY_ADDR;
+	bis->bi_phymode[0] = 0;
+
+#if defined(CONFIG_PHY1_ADDR)
+	bis->bi_phynum[1] = CONFIG_PHY1_ADDR;
+	bis->bi_phymode[1] = 0;
+#endif
+#if defined(CONFIG_440GX)
+	bis->bi_phynum[2] = CONFIG_PHY2_ADDR;
+	bis->bi_phynum[3] = CONFIG_PHY3_ADDR;
+	bis->bi_phymode[2] = 2;
+	bis->bi_phymode[3] = 2;
+#endif
+
+#if defined(CONFIG_440GX) || \
+    defined(CONFIG_440EPX) || defined(CONFIG_440GRX) || \
+    defined(CONFIG_405EX)
+	ppc_4xx_eth_setup_bridge(0, bis);
+#endif
+
+	for (eth_num = 0; eth_num < LAST_EMAC_NUM; eth_num++) {
+		/*
+		 * See if we can actually bring up the interface,
+		 * otherwise, skip it
+		 */
+		if (memcmp (ethaddr[eth_num], "\0\0\0\0\0\0", 6) == 0) {
+			bis->bi_phymode[eth_num] = BI_PHYMODE_NONE;
+			continue;
+		}
+
+		/* Allocate device structure */
+		dev = (struct eth_device *) malloc (sizeof (*dev));
+		if (dev == NULL) {
+			printf ("ppc_4xx_eth_initialize: "
+				"Cannot allocate eth_device %d\n", eth_num);
+			return (-1);
+		}
+		memset(dev, 0, sizeof(*dev));
+
+		/* Allocate our private use data */
+		hw = (EMAC_4XX_HW_PST) malloc (sizeof (*hw));
+		if (hw == NULL) {
+			printf ("ppc_4xx_eth_initialize: "
+				"Cannot allocate private hw data for eth_device %d",
+				eth_num);
+			free (dev);
+			return (-1);
+		}
+		memset(hw, 0, sizeof(*hw));
+
+		hw->hw_addr = hw_addr[eth_num];
+		memcpy (dev->enetaddr, ethaddr[eth_num], 6);
+		hw->devnum = eth_num;
+		hw->print_speed = 1;
+
+		sprintf (dev->name, "ppc_4xx_eth%d", eth_num - CONFIG_EMAC_NR_START);
+		dev->priv = (void *) hw;
+		dev->init = ppc_4xx_eth_init;
+		dev->halt = ppc_4xx_eth_halt;
+		dev->send = ppc_4xx_eth_send;
+		dev->recv = ppc_4xx_eth_rx;
+
+		if (0 == virgin) {
+			/* set the MAL IER ??? names may change with new spec ??? */
+#if defined(CONFIG_440SPE) || \
+    defined(CONFIG_440EPX) || defined(CONFIG_440GRX) || \
+    defined(CONFIG_460EX) || defined(CONFIG_460GT) || \
+    defined(CONFIG_405EX)
+			mal_ier =
+				MAL_IER_PT | MAL_IER_PRE | MAL_IER_PWE |
+				MAL_IER_DE | MAL_IER_OTE | MAL_IER_OE | MAL_IER_PE ;
+#else
+			mal_ier =
+				MAL_IER_DE | MAL_IER_NE | MAL_IER_TE |
+				MAL_IER_OPBE | MAL_IER_PLBE;
+#endif
+			mtdcr (malesr, 0xffffffff);	/* clear pending interrupts */
+			mtdcr (maltxdeir, 0xffffffff);	/* clear pending interrupts */
+			mtdcr (malrxdeir, 0xffffffff);	/* clear pending interrupts */
+			mtdcr (malier, mal_ier);
+
+			/* install MAL interrupt handler */
+			irq_install_handler (VECNUM_MAL_SERR,
+					     (interrupt_handler_t *) enetInt,
+					     dev);
+			irq_install_handler (VECNUM_MAL_TXEOB,
+					     (interrupt_handler_t *) enetInt,
+					     dev);
+			irq_install_handler (VECNUM_MAL_RXEOB,
+					     (interrupt_handler_t *) enetInt,
+					     dev);
+			irq_install_handler (VECNUM_MAL_TXDE,
+					     (interrupt_handler_t *) enetInt,
+					     dev);
+			irq_install_handler (VECNUM_MAL_RXDE,
+					     (interrupt_handler_t *) enetInt,
+					     dev);
+			virgin = 1;
+		}
+
+#if defined(CONFIG_NET_MULTI)
+		eth_register (dev);
+#else
+		emac0_dev = dev;
+#endif
+
+#if defined(CONFIG_NET_MULTI)
+#if defined(CONFIG_MII) || defined(CONFIG_CMD_MII)
+		miiphy_register (dev->name,
+				 emac4xx_miiphy_read, emac4xx_miiphy_write);
+#endif
+#endif
+	}			/* end for each supported device */
+
+	return 0;
+}
+
+#if !defined(CONFIG_NET_MULTI)
+void eth_halt (void) {
+	if (emac0_dev) {
+		ppc_4xx_eth_halt(emac0_dev);
+		free(emac0_dev);
+		emac0_dev = NULL;
+	}
+}
+
+int eth_init (bd_t *bis)
+{
+	ppc_4xx_eth_initialize(bis);
+	if (emac0_dev) {
+		return ppc_4xx_eth_init(emac0_dev, bis);
+	} else {
+		printf("ERROR: ethaddr not set!\n");
+		return -1;
+	}
+}
+
+int eth_send(volatile void *packet, int length)
+{
+	return (ppc_4xx_eth_send(emac0_dev, packet, length));
+}
+
+int eth_rx(void)
+{
+	return (ppc_4xx_eth_rx(emac0_dev));
+}
+
+int emac4xx_miiphy_initialize (bd_t * bis)
+{
+#if defined(CONFIG_MII) || defined(CONFIG_CMD_MII)
+	miiphy_register ("ppc_4xx_eth0",
+			 emac4xx_miiphy_read, emac4xx_miiphy_write);
+#endif
+
+	return 0;
+}
+#endif /* !defined(CONFIG_NET_MULTI) */