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diff --git a/cpu/ppc4xx/4xx_enet.c b/cpu/ppc4xx/4xx_enet.c
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+/*-----------------------------------------------------------------------------+
+ *
+ * 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 <commproc.h>
+#include <ppc4xx.h>
+#include <ppc4xx_enet.h>
+#include <405_mal.h>
+#include <miiphy.h>
+#include <malloc.h>
+#include "vecnum.h"
+
+/*
+ * Only compile for platform with IBM/AMCC EMAC ethernet controller and
+ * network support enabled.
+ * Remark: CONFIG_405 describes Xilinx PPC405 FPGA without EMAC controller!
+ */
+#if (CONFIG_COMMANDS & CFG_CMD_NET) && !defined(CONFIG_405) && !defined(CONFIG_IOP480)
+
+#if !(defined(CONFIG_MII) || (CONFIG_COMMANDS & CFG_CMD_MII))
+#error "CONFIG_MII has to be defined!"
+#endif
+
+#define EMAC_RESET_TIMEOUT 1000 /* 1000 ms reset timeout */
+#define PHY_AUTONEGOTIATE_TIMEOUT 4000 /* 4000 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
+
+/* define the number of channels implemented */
+#define EMAC_RXCHL EMAC_NUM_DEV
+#define EMAC_TXCHL EMAC_NUM_DEV
+
+/*-----------------------------------------------------------------------------+
+ * Defines for MAL/EMAC interrupt conditions as reported in the UIC (Universal
+ * Interrupt Controller).
+ *-----------------------------------------------------------------------------*/
+#define MAL_UIC_ERR ( UIC_MAL_SERR | UIC_MAL_TXDE | UIC_MAL_RXDE)
+#define MAL_UIC_DEF (UIC_MAL_RXEOB | MAL_UIC_ERR)
+#define EMAC_UIC_DEF UIC_ENET
+#define EMAC_UIC_DEF1 UIC_ENET1
+#define SEL_UIC_DEF(p) (p ? UIC_ENET1 : UIC_ENET )
+
+#undef INFO_4XX_ENET
+
+#define BI_PHYMODE_NONE 0
+#define BI_PHYMODE_ZMII 1
+#define BI_PHYMODE_RGMII 2
+
+
+/*-----------------------------------------------------------------------------+
+ * Global variables. TX and RX descriptors and buffers.
+ *-----------------------------------------------------------------------------*/
+/* IER globals */
+static uint32_t mal_ier;
+
+#if !defined(CONFIG_NET_MULTI)
+struct eth_device *emac0_dev;
+#endif
+
+
+/*-----------------------------------------------------------------------------+
+ * 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);
+
+
+/*-----------------------------------------------------------------------------+
+| 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;
+ uint32_t failsafe = 10000;
+
+ out32 (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 */
+ failsafe--;
+ if (failsafe == 0)
+ break;
+ }
+
+ /* EMAC RESET */
+ out32 (EMAC_M0 + hw_p->hw_addr, EMAC_M0_SRST);
+
+ hw_p->print_speed = 1; /* print speed message again next time */
+
+ return;
+}
+
+extern int phy_setup_aneg (unsigned char addr);
+extern int miiphy_reset (unsigned char addr);
+
+#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);
+
+ out32 (ZMII_FER, zmiifer);
+ out32 (RGMII_FER, rmiifer);
+
+ return ((int)pfc1);
+
+}
+#endif
+
+static int ppc_4xx_eth_init (struct eth_device *dev, bd_t * bis)
+{
+ int i, j;
+ 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)
+ sys_info_t sysinfo;
+ int ethgroup;
+#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)
+ return -1;
+
+#if defined(CONFIG_440GX)
+ /* 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;
+#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)
+ /* 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;
+ out32 (ZMII_FER, 0);
+ udelay (100);
+
+#if defined(CONFIG_440EP) || defined(CONFIG_440GR)
+ out32 (ZMII_FER, (ZMII_FER_RMII | ZMII_FER_MDI) << ZMII_FER_V (devnum));
+#elif defined(CONFIG_440GX)
+ ethgroup = ppc_4xx_eth_setup_bridge(devnum, bis);
+#else
+ if ((devnum == 0) || (devnum == 1)) {
+ out32 (ZMII_FER, (ZMII_FER_SMII | ZMII_FER_MDI) << ZMII_FER_V (devnum));
+ }
+ else { /* ((devnum == 2) || (devnum == 3)) */
+ out32 (ZMII_FER, ZMII_FER_MDI << ZMII_FER_V (devnum));
+ out32 (RGMII_FER, ((RGMII_FER_RGMII << RGMII_FER_V (2)) |
+ (RGMII_FER_RGMII << RGMII_FER_V (3))));
+ }
+#endif
+
+ out32 (ZMII_SSR, ZMII_SSR_SP << ZMII_SSR_V(devnum));
+#endif /* defined(CONFIG_440) */
+
+ __asm__ volatile ("eieio");
+
+ /* reset emac so we have access to the phy */
+
+ out32 (EMAC_M0 + hw_p->hw_addr, EMAC_M0_SRST);
+ __asm__ volatile ("eieio");
+
+ failsafe = 1000;
+ while ((in32 (EMAC_M0 + hw_p->hw_addr) & (EMAC_M0_SRST)) && failsafe) {
+ udelay (1000);
+ failsafe--;
+ }
+
+#if defined(CONFIG_440GX)
+ /* 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;
+
+ out32 (EMAC_M1 + hw_p->hw_addr, mode_reg);
+#endif /* defined(CONFIG_440GX) */
+
+ /* wait for PHY to complete auto negotiation */
+ reg_short = 0;
+#ifndef CONFIG_CS8952_PHY
+ 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_440GX)
+ case 2:
+ reg = CONFIG_PHY2_ADDR;
+ break;
+ case 3:
+ reg = CONFIG_PHY3_ADDR;
+ break;
+#endif
+ default:
+ reg = CONFIG_PHY_ADDR;
+ break;
+ }
+
+ bis->bi_phynum[devnum] = reg;
+
+#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) {
+ miiphy_reset (reg);
+
+#if defined(CONFIG_440GX)
+#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 (reg, 23, 0x1300);
+#else
+ miiphy_write (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 (reg, 0x1f, 0x2a30);
+ miiphy_write (reg, 0x08, 0x0200);
+ miiphy_write (reg, 0x1f, 0x52b5);
+ miiphy_write (reg, 0x02, 0x0004);
+ miiphy_write (reg, 0x01, 0x0671);
+ miiphy_write (reg, 0x00, 0x8fae);
+ miiphy_write (reg, 0x1f, 0x2a30);
+ miiphy_write (reg, 0x08, 0x0000);
+ miiphy_write (reg, 0x1f, 0x0000);
+ /* end Vitesse/Cicada errata */
+ }
+#endif
+#endif
+ /* Start/Restart autonegotiation */
+ phy_setup_aneg (reg);
+ udelay (1000);
+ }
+#endif /* defined(CONFIG_PHY_RESET) */
+
+ miiphy_read (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 (reg, PHY_BMSR, &reg_short);
+
+ }
+ puts (" done\n");
+ udelay (500000); /* another 500 ms (results in faster booting) */
+ }
+#endif /* #ifndef CONFIG_CS8952_PHY */
+
+ speed = miiphy_speed (reg);
+ duplex = miiphy_duplex (reg);
+
+ if (hw_p->print_speed) {
+ hw_p->print_speed = 0;
+ printf ("ENET Speed is %d Mbps - %s duplex connection\n",
+ (int) speed, (duplex == HALF) ? "HALF" : "FULL");
+ }
+
+#if defined(CONFIG_440)
+#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 = in32 (ZMII_SSR);
+ if ( (speed == 100) || (speed == 1000) )
+ out32 (ZMII_SSR, reg | (ZMII_SSR_SP << ZMII_SSR_V (devnum)));
+ else
+ out32 (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
+ reg = (RGMII_SSR_SP_10MBPS << RGMII_SSR_V (devnum));
+
+ out32 (RGMII_SSR, reg);
+ }
+#endif /* defined(CONFIG_440) */
+
+ /* set the Mal configuration reg */
+#if defined(CONFIG_440GX)
+ 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
+
+ /* Free "old" buffers */
+ if (hw_p->alloc_tx_buf)
+ free (hw_p->alloc_tx_buf);
+ if (hw_p->alloc_rx_buf)
+ free (hw_p->alloc_rx_buf);
+
+ /*
+ * 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.
+ */
+ hw_p->alloc_tx_buf =
+ (mal_desc_t *) malloc ((sizeof (mal_desc_t) * NUM_TX_BUFF) +
+ ((2 * CFG_CACHELINE_SIZE) - 2));
+ if (NULL == hw_p->alloc_tx_buf)
+ return -1;
+ if (((int) hw_p->alloc_tx_buf & CACHELINE_MASK) != 0) {
+ hw_p->tx =
+ (mal_desc_t *) ((int) hw_p->alloc_tx_buf +
+ CFG_CACHELINE_SIZE -
+ ((int) hw_p->
+ alloc_tx_buf & CACHELINE_MASK));
+ } else {
+ hw_p->tx = hw_p->alloc_tx_buf;
+ }
+
+ hw_p->alloc_rx_buf =
+ (mal_desc_t *) malloc ((sizeof (mal_desc_t) * NUM_RX_BUFF) +
+ ((2 * CFG_CACHELINE_SIZE) - 2));
+ if (NULL == hw_p->alloc_rx_buf) {
+ free(hw_p->alloc_tx_buf);
+ hw_p->alloc_tx_buf = NULL;
+ return -1;
+ }
+
+ if (((int) hw_p->alloc_rx_buf & CACHELINE_MASK) != 0) {
+ hw_p->rx =
+ (mal_desc_t *) ((int) hw_p->alloc_rx_buf +
+ CFG_CACHELINE_SIZE -
+ ((int) hw_p->
+ alloc_rx_buf & CACHELINE_MASK));
+ } else {
+ hw_p->rx = hw_p->alloc_rx_buf;
+ }
+
+ 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 =
+ (char *) malloc (ENET_MAX_MTU_ALIGNED);
+ if (NULL == hw_p->txbuf_ptr) {
+ free(hw_p->alloc_rx_buf);
+ free(hw_p->alloc_tx_buf);
+ hw_p->alloc_rx_buf = NULL;
+ hw_p->alloc_tx_buf = NULL;
+ for(j = 0; j < i; j++) {
+ free(hw_p->tx[i].data_ptr);
+ hw_p->tx[i].data_ptr = NULL;
+ }
+ }
+ }
+ 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;
+#if 0
+ printf ("TX_BUFF %d @ 0x%08lx\n", i,
+ (ulong) hw_p->tx[i].data_ptr);
+#endif
+ }
+
+ for (i = 0; i < NUM_RX_BUFF; i++) {
+ hw_p->rx[i].ctrl = 0;
+ hw_p->rx[i].data_len = 0;
+ /* rx[i].data_ptr = (char *) &rx_buff[i]; */
+ 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;
+#if 0
+ printf ("RX_BUFF %d @ 0x%08lx\n", i, (ulong) rx[i].data_ptr);
+#endif
+ }
+
+ reg = 0x00000000;
+
+ reg |= dev->enetaddr[0]; /* set high address */
+ reg = reg << 8;
+ reg |= dev->enetaddr[1];
+
+ out32 (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];
+
+ out32 (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);
+#else
+ mtdcr (maltxctp1r, hw_p->tx);
+#endif
+#if defined(CONFIG_440)
+ mtdcr (maltxbattr, 0x0);
+ mtdcr (malrxbattr, 0x0);
+#endif
+ mtdcr (malrxctp1r, hw_p->rx);
+ /* set RX buffer size */
+ mtdcr (malrcbs1, ENET_MAX_MTU_ALIGNED / 16);
+ break;
+#if defined (CONFIG_440GX)
+ case 2:
+ /* setup MAL tx & rx channel pointers */
+ mtdcr (maltxbattr, 0x0);
+ mtdcr (malrxbattr, 0x0);
+ mtdcr (maltxctp2r, hw_p->tx);
+ mtdcr (malrxctp2r, hw_p->rx);
+ /* 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);
+ mtdcr (malrxbattr, 0x0);
+ mtdcr (malrxctp3r, hw_p->rx);
+ /* set RX buffer size */
+ mtdcr (malrcbs3, ENET_MAX_MTU_ALIGNED / 16);
+ break;
+#endif /* CONFIG_440GX */
+ 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);
+ mtdcr (malrxctp0r, hw_p->rx);
+ /* 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 */
+ out32 (EMAC_M0 + hw_p->hw_addr, EMAC_M0_TXE | EMAC_M0_RXE);
+
+ /* set receive fifo to 4k and tx fifo to 2k */
+ mode_reg = in32 (EMAC_M1 + hw_p->hw_addr);
+ mode_reg |= EMAC_M1_RFS_4K | EMAC_M1_TX_FIFO_2K;
+
+ /* set speed */
+ if (speed == _1000BASET)
+ 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;
+
+ out32 (EMAC_M1 + hw_p->hw_addr, mode_reg);
+
+ /* Enable broadcast and indvidual address */
+ /* TBS: enabling runts as some misbehaved nics will send runts */
+ out32 (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 */
+ out32 (EMAC_TRTR + hw_p->hw_addr, 0x18000000); /* 256 byte threshold */
+
+ /* set receive low/high water mark register */
+#if defined(CONFIG_440)
+ /* 440GP has a 64 byte burst length */
+ out32 (EMAC_RX_HI_LO_WMARK + hw_p->hw_addr, 0x80009000);
+#else
+ /* 405s have a 16 byte burst length */
+ out32 (EMAC_RX_HI_LO_WMARK + hw_p->hw_addr, 0x0f002000);
+#endif /* defined(CONFIG_440) */
+ out32 (EMAC_TXM1 + hw_p->hw_addr, 0xf8640000);
+
+ /* Set fifo limit entry in tx mode 0 */
+ out32 (EMAC_TXM0 + hw_p->hw_addr, 0x00000003);
+ /* Frame gap set */
+ out32 (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;
+
+ out32 (EMAC_ISR + hw_p->hw_addr, 0xffffffff); /* clear pending interrupts */
+ out32 (EMAC_IER + hw_p->hw_addr, hw_p->emac_ier);
+
+ if (hw_p->first_init == 0) {
+ /*
+ * Connect interrupt service routines
+ */
+ irq_install_handler (VECNUM_ETH0 + (hw_p->devnum * 2),
+ (interrupt_handler_t *) enetInt, dev);
+ }
+
+ mtmsr (msr); /* enable interrupts again */
+
+ hw_p->bis = bis;
+ hw_p->first_init = 1;
+
+ return (1);
+}
+
+
+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);
+
+ /*-----------------------------------------------------------------------+
+ * 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;
+
+ __asm__ volatile ("eieio");
+
+ out32 (EMAC_TXM0 + hw_p->hw_addr,
+ in32 (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 = in32 (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);
+ }
+ }
+}
+
+#if defined (CONFIG_440)
+
+int enetInt (struct eth_device *dev)
+{
+ int serviced;
+ int rc = -1; /* default to not us */
+ unsigned long mal_isr;
+ unsigned long emac_isr = 0;
+ unsigned long mal_rx_eob;
+ unsigned long my_uic0msr, my_uic1msr;
+
+#if defined(CONFIG_440GX)
+ unsigned long my_uic2msr;
+#endif
+ 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;
+
+ my_uic0msr = mfdcr (uic0msr);
+ my_uic1msr = mfdcr (uic1msr);
+#if defined(CONFIG_440GX)
+ my_uic2msr = mfdcr (uic2msr);
+#endif
+ if (!(my_uic0msr & (UIC_MRE | UIC_MTE))
+ && !(my_uic1msr &
+ (UIC_ETH0 | UIC_ETH1 | UIC_MS | UIC_MTDE |
+ UIC_MRDE))) {
+ /* not for us */
+ return (rc);
+ }
+#if defined (CONFIG_440GX)
+ if (!(my_uic0msr & (UIC_MRE | UIC_MTE))
+ && !(my_uic2msr & (UIC_ETH2 | UIC_ETH3))) {
+ /* not for us */
+ return (rc);
+ }
+#endif
+ /* get and clear controller status interrupts */
+ /* look at Mal and EMAC interrupts */
+ if ((my_uic0msr & (UIC_MRE | UIC_MTE))
+ || (my_uic1msr & (UIC_MS | UIC_MTDE | UIC_MRDE))) {
+ /* we have a MAL interrupt */
+ mal_isr = mfdcr (malesr);
+ /* look for mal error */
+ if (my_uic1msr & (UIC_MS | UIC_MTDE | UIC_MRDE)) {
+ mal_err (dev, mal_isr, my_uic0msr,
+ MAL_UIC_DEF, MAL_UIC_ERR);
+ serviced = 1;
+ rc = 0;
+ }
+ }
+
+ /* port by port dispatch of emac interrupts */
+ if (hw_p->devnum == 0) {
+ if (UIC_ETH0 & my_uic1msr) { /* look for EMAC errors */
+ emac_isr = in32 (EMAC_ISR + hw_p->hw_addr);
+ if ((hw_p->emac_ier & emac_isr) != 0) {
+ emac_err (dev, emac_isr);
+ serviced = 1;
+ rc = 0;
+ }
+ }
+ if ((hw_p->emac_ier & emac_isr)
+ || (my_uic1msr & (UIC_MS | UIC_MTDE | UIC_MRDE))) {
+ mtdcr (uic0sr, UIC_MRE | UIC_MTE); /* Clear */
+ mtdcr (uic1sr, UIC_ETH0 | UIC_MS | UIC_MTDE | UIC_MRDE); /* Clear */
+ return (rc); /* we had errors so get out */
+ }
+ }
+
+ if (hw_p->devnum == 1) {
+ if (UIC_ETH1 & my_uic1msr) { /* look for EMAC errors */
+ emac_isr = in32 (EMAC_ISR + hw_p->hw_addr);
+ if ((hw_p->emac_ier & emac_isr) != 0) {
+ emac_err (dev, emac_isr);
+ serviced = 1;
+ rc = 0;
+ }
+ }
+ if ((hw_p->emac_ier & emac_isr)
+ || (my_uic1msr & (UIC_MS | UIC_MTDE | UIC_MRDE))) {
+ mtdcr (uic0sr, UIC_MRE | UIC_MTE); /* Clear */
+ mtdcr (uic1sr, UIC_ETH1 | UIC_MS | UIC_MTDE | UIC_MRDE); /* Clear */
+ return (rc); /* we had errors so get out */
+ }
+ }
+#if defined (CONFIG_440GX)
+ if (hw_p->devnum == 2) {
+ if (UIC_ETH2 & my_uic2msr) { /* look for EMAC errors */
+ emac_isr = in32 (EMAC_ISR + hw_p->hw_addr);
+ if ((hw_p->emac_ier & emac_isr) != 0) {
+ emac_err (dev, emac_isr);
+ serviced = 1;
+ rc = 0;
+ }
+ }
+ if ((hw_p->emac_ier & emac_isr)
+ || (my_uic1msr & (UIC_MS | UIC_MTDE | UIC_MRDE))) {
+ mtdcr (uic0sr, UIC_MRE | UIC_MTE); /* Clear */
+ mtdcr (uic1sr, UIC_MS | UIC_MTDE | UIC_MRDE); /* Clear */
+ mtdcr (uic2sr, UIC_ETH2);
+ return (rc); /* we had errors so get out */
+ }
+ }
+
+ if (hw_p->devnum == 3) {
+ if (UIC_ETH3 & my_uic2msr) { /* look for EMAC errors */
+ emac_isr = in32 (EMAC_ISR + hw_p->hw_addr);
+ if ((hw_p->emac_ier & emac_isr) != 0) {
+ emac_err (dev, emac_isr);
+ serviced = 1;
+ rc = 0;
+ }
+ }
+ if ((hw_p->emac_ier & emac_isr)
+ || (my_uic1msr & (UIC_MS | UIC_MTDE | UIC_MRDE))) {
+ mtdcr (uic0sr, UIC_MRE | UIC_MTE); /* Clear */
+ mtdcr (uic1sr, UIC_MS | UIC_MTDE | UIC_MRDE); /* Clear */
+ mtdcr (uic2sr, UIC_ETH3);
+ return (rc); /* we had errors so get out */
+ }
+ }
+#endif /* CONFIG_440GX */
+ /* handle MAX TX EOB interrupt from a tx */
+ if (my_uic0msr & UIC_MTE) {
+ mal_rx_eob = mfdcr (maltxeobisr);
+ mtdcr (maltxeobisr, mal_rx_eob);
+ mtdcr (uic0sr, UIC_MTE);
+ }
+ /* handle MAL RX EOB interupt from a receive */
+ /* check for EOB on valid channels */
+ if (my_uic0msr & UIC_MRE) {
+ mal_rx_eob = mfdcr (malrxeobisr);
+ if ((mal_rx_eob & (0x80000000 >> hw_p->devnum)) != 0) { /* call emac routine for channel x */
+ /* clear EOB
+ mtdcr(malrxeobisr, mal_rx_eob); */
+ enet_rcv (dev, emac_isr);
+ /* indicate that we serviced an interrupt */
+ serviced = 1;
+ rc = 0;
+ }
+ }
+ mtdcr (uic0sr, UIC_MRE); /* Clear */
+ mtdcr (uic1sr, UIC_MS | UIC_MTDE | UIC_MRDE); /* Clear */
+ switch (hw_p->devnum) {
+ case 0:
+ mtdcr (uic1sr, UIC_ETH0);
+ break;
+ case 1:
+ mtdcr (uic1sr, UIC_ETH1);
+ break;
+#if defined (CONFIG_440GX)
+ case 2:
+ mtdcr (uic2sr, UIC_ETH2);
+ break;
+ case 3:
+ mtdcr (uic2sr, UIC_ETH3);
+ break;
+#endif /* CONFIG_440GX */
+ default:
+ break;
+ }
+ } while (serviced);
+
+ return (rc);
+}
+
+#else /* CONFIG_440 */
+
+int enetInt (struct eth_device *dev)
+{
+ int serviced;
+ int rc = -1; /* default to not us */
+ unsigned long mal_isr;
+ unsigned long emac_isr = 0;
+ unsigned long mal_rx_eob;
+ unsigned long my_uicmsr;
+
+ 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;
+
+ my_uicmsr = mfdcr (uicmsr);
+
+ if ((my_uicmsr & (MAL_UIC_DEF | EMAC_UIC_DEF)) == 0) { /* not for us */
+ return (rc);
+ }
+ /* get and clear controller status interrupts */
+ /* look at Mal and EMAC interrupts */
+ if ((MAL_UIC_DEF & my_uicmsr) != 0) { /* we have a MAL interrupt */
+ mal_isr = mfdcr (malesr);
+ /* look for mal error */
+ if ((my_uicmsr & MAL_UIC_ERR) != 0) {
+ mal_err (dev, mal_isr, my_uicmsr, MAL_UIC_DEF, MAL_UIC_ERR);
+ serviced = 1;
+ rc = 0;
+ }
+ }
+
+ /* port by port dispatch of emac interrupts */
+
+ if ((SEL_UIC_DEF(hw_p->devnum) & my_uicmsr) != 0) { /* look for EMAC errors */
+ emac_isr = in32 (EMAC_ISR + hw_p->hw_addr);
+ if ((hw_p->emac_ier & emac_isr) != 0) {
+ emac_err (dev, emac_isr);
+ serviced = 1;
+ rc = 0;
+ }
+ }
+ if (((hw_p->emac_ier & emac_isr) != 0) || ((MAL_UIC_ERR & my_uicmsr) != 0)) {
+ mtdcr (uicsr, MAL_UIC_DEF | SEL_UIC_DEF(hw_p->devnum)); /* Clear */
+ return (rc); /* we had errors so get out */
+ }
+
+ /* handle MAX TX EOB interrupt from a tx */
+ if (my_uicmsr & UIC_MAL_TXEOB) {
+ mal_rx_eob = mfdcr (maltxeobisr);
+ mtdcr (maltxeobisr, mal_rx_eob);
+ mtdcr (uicsr, UIC_MAL_TXEOB);
+ }
+ /* handle MAL RX EOB interupt from a receive */
+ /* check for EOB on valid channels */
+ if (my_uicmsr & UIC_MAL_RXEOB)
+ {
+ mal_rx_eob = mfdcr (malrxeobisr);
+ if ((mal_rx_eob & (0x80000000 >> hw_p->devnum)) != 0) { /* call emac routine for channel x */
+ /* clear EOB
+ mtdcr(malrxeobisr, mal_rx_eob); */
+ enet_rcv (dev, emac_isr);
+ /* indicate that we serviced an interrupt */
+ serviced = 1;
+ rc = 0;
+ }
+ }
+ mtdcr (uicsr, MAL_UIC_DEF|EMAC_UIC_DEF|EMAC_UIC_DEF1); /* Clear */
+ }
+ while (serviced);
+
+ return (rc);
+}
+
+#endif /* CONFIG_440 */
+
+/*-----------------------------------------------------------------------------+
+ * 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);
+ out32 (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) & 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++;
+ hw_p->rx_slot++;
+ if (NUM_RX_BUFF == hw_p->rx_slot)
+ hw_p->rx_slot = 0;
+ handled++;
+ data_len = (unsigned long) hw_p->rx[i].data_len; /* 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;
+
+ /* 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;
+
+ /* Pass the packet up to the protocol layers. */
+ /* NetReceive(NetRxPackets[rxIdx], length - 4); */
+ /* NetReceive(NetRxPackets[i], length); */
+ 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;
+
+#if defined(CONFIG_440GX)
+ unsigned long pfc1;
+
+ mfsdr (sdr_pfc1, pfc1);
+ pfc1 &= ~(0x01e00000);
+ pfc1 |= 0x01200000;
+ mtsdr (sdr_pfc1, pfc1);
+#endif
+ /* set phy num and mode */
+ bis->bi_phynum[0] = CONFIG_PHY_ADDR;
+#if defined(CONFIG_PHY1_ADDR)
+ bis->bi_phynum[1] = CONFIG_PHY1_ADDR;
+#endif
+#if defined(CONFIG_440GX)
+ bis->bi_phynum[2] = CONFIG_PHY2_ADDR;
+ bis->bi_phynum[3] = CONFIG_PHY3_ADDR;
+ bis->bi_phymode[0] = 0;
+ bis->bi_phymode[1] = 0;
+ bis->bi_phymode[2] = 2;
+ bis->bi_phymode[3] = 2;
+
+#if defined (CONFIG_440GX)
+ ppc_4xx_eth_setup_bridge(0, bis);
+#endif
+#endif
+
+ for (eth_num = 0; eth_num < EMAC_NUM_DEV; eth_num++) {
+
+ /* See if we can actually bring up the interface, otherwise, skip it */
+ switch (eth_num) {
+ default: /* fall through */
+ case 0:
+ if (memcmp (bis->bi_enetaddr, "\0\0\0\0\0\0", 6) == 0) {
+ bis->bi_phymode[eth_num] = BI_PHYMODE_NONE;
+ continue;
+ }
+ break;
+#ifdef CONFIG_HAS_ETH1
+ case 1:
+ if (memcmp (bis->bi_enet1addr, "\0\0\0\0\0\0", 6) == 0) {
+ bis->bi_phymode[eth_num] = BI_PHYMODE_NONE;
+ continue;
+ }
+ break;
+#endif
+#ifdef CONFIG_HAS_ETH2
+ case 2:
+ if (memcmp (bis->bi_enet2addr, "\0\0\0\0\0\0", 6) == 0) {
+ bis->bi_phymode[eth_num] = BI_PHYMODE_NONE;
+ continue;
+ }
+ break;
+#endif
+#ifdef CONFIG_HAS_ETH3
+ case 3:
+ if (memcmp (bis->bi_enet3addr, "\0\0\0\0\0\0", 6) == 0) {
+ bis->bi_phymode[eth_num] = BI_PHYMODE_NONE;
+ continue;
+ }
+ break;
+#endif
+ }
+
+ /* 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));
+
+ switch (eth_num) {
+ default: /* fall through */
+ case 0:
+ hw->hw_addr = 0;
+ memcpy (dev->enetaddr, bis->bi_enetaddr, 6);
+ break;
+#ifdef CONFIG_HAS_ETH1
+ case 1:
+ hw->hw_addr = 0x100;
+ memcpy (dev->enetaddr, bis->bi_enet1addr, 6);
+ break;
+#endif
+#ifdef CONFIG_HAS_ETH2
+ case 2:
+ hw->hw_addr = 0x400;
+ memcpy (dev->enetaddr, bis->bi_enet2addr, 6);
+ break;
+#endif
+#ifdef CONFIG_HAS_ETH3
+ case 3:
+ hw->hw_addr = 0x600;
+ memcpy (dev->enetaddr, bis->bi_enet3addr, 6);
+ break;
+#endif
+ }
+
+ hw->devnum = eth_num;
+ hw->print_speed = 1;
+
+ sprintf (dev->name, "ppc_4xx_eth%d", eth_num);
+ 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 ??? */
+ mal_ier =
+ MAL_IER_DE | MAL_IER_NE | MAL_IER_TE |
+ MAL_IER_OPBE | MAL_IER_PLBE;
+ 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_MS,
+ (interrupt_handler_t *) enetInt,
+ dev);
+ irq_install_handler (VECNUM_MTE,
+ (interrupt_handler_t *) enetInt,
+ dev);
+ irq_install_handler (VECNUM_MRE,
+ (interrupt_handler_t *) enetInt,
+ dev);
+ irq_install_handler (VECNUM_TXDE,
+ (interrupt_handler_t *) enetInt,
+ dev);
+ irq_install_handler (VECNUM_RXDE,
+ (interrupt_handler_t *) enetInt,
+ dev);
+ virgin = 1;
+ }
+
+#if defined(CONFIG_NET_MULTI)
+ eth_register (dev);
+#else
+ emac0_dev = dev;
+#endif
+
+ } /* end for each supported device */
+ return (1);
+}
+
+
+#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);
+ return(ppc_4xx_eth_init(emac0_dev, bis));
+}
+
+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));
+}
+#endif /* !defined(CONFIG_NET_MULTI) */
+
+#endif /* #if (CONFIG_COMMANDS & CFG_CMD_NET) */
generated by cgit v1.2.3-70-g09d2 (git 2.51.2) at 2025-10-31 01:10:53 +0000