+++ /dev/null
-/*-----------------------------------------------------------------------------+
- *
- * 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).
- * 21-Nov-03 pavel.bartusek@sysgo.com
- * - set ZMII bridge speed on 440
- *
- *-----------------------------------------------------------------------------*/
-
-#include <common.h>
-#include <asm/processor.h>
-#include <ppc4xx.h>
-#include <commproc.h>
-#include <405gp_enet.h>
-#include <405_mal.h>
-#include <miiphy.h>
-#include <net.h>
-#include <malloc.h>
-#include "vecnum.h"
-
-#if defined(CONFIG_405GP) || defined(CONFIG_405EP) || \
- ( defined(CONFIG_440) && !defined(CONFIG_NET_MULTI))
-
-#if !defined(CONFIG_NET_MULTI) || !defined(CONFIG_405EP)
-/* 405GP, 440 with !CONFIG_NET_MULTI. For 440 only EMAC0 is supported */
-#define EMAC_NUM_DEV 1
-#else
-/* 440EP && CONFIG_NET_MULTI */
-#define EMAC_NUM_DEV 2
-#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 )
-
-
-/*-----------------------------------------------------------------------------+
- * 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_405x_eth_halt
-| Disable MAL channel, and EMACn
-|
-|
-+-----------------------------------------------------------------------------*/
-static void ppc_4xx_eth_halt (struct eth_device *dev)
-{
- EMAC_405_HW_PST hw_p = dev->priv;
- uint32_t failsafe = 10000;
-
- mtdcr (malier, 0x00000000); /* disable mal interrupts */
- 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 */
- mtdcr (maltxcarr, (MAL_CR_MMSR >> (hw_p->devnum * 2)));
- 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;
-}
-
-static int ppc_4xx_eth_init (struct eth_device *dev, bd_t * bis)
-{
- int i;
- unsigned long reg;
- unsigned long msr;
- unsigned long speed;
- unsigned long duplex;
- unsigned long failsafe;
- unsigned mode_reg;
- unsigned short devnum;
- unsigned short reg_short;
-
- EMAC_405_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;
-
- msr = mfmsr ();
- mtmsr (msr & ~(MSR_EE)); /* disable interrupts */
-
- devnum = hw_p->devnum;
-
-#ifdef INFO_405_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
-
- /* MAL RESET */
- mtdcr (malmcr, MAL_CR_MMSR);
- /* wait for reset */
- while (mfdcr (malmcr) & MAL_CR_MMSR) {
- };
-
-#if defined(CONFIG_440EP) || defined(CONFIG_440GR)
- out32 (ZMII_FER, 0);
- udelay(100);
- /* set RII mode */
- out32 (ZMII_FER, ZMII_RMII | ZMII_MDI0);
-#elif defined(CONFIG_440)
- /* set RMII mode */
- out32 (ZMII_FER, ZMII_RMII | ZMII_MDI0);
-#endif /* CONFIG_440 */
-
- /* MAL Channel RESET */
- /* 1st reset MAL channel */
- /* Note: writing a 0 to a channel has no effect */
- mtdcr (maltxcarr, (MAL_TXRX_CASR >> (hw_p->devnum * 2)));
- mtdcr (malrxcarr, (MAL_TXRX_CASR >> hw_p->devnum));
-
- /* wait for reset */
- /* TBS: should have udelay and failsafe here */
- failsafe = 10000;
- /* 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;
-
- }
-
- 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 */
-
- __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_NET_MULTI)
- reg = hw_p->devnum ? CONFIG_PHY1_ADDR : CONFIG_PHY_ADDR;
-#else
- reg = CONFIG_PHY_ADDR;
-#endif
- /* wait for PHY to complete auto negotiation */
- reg_short = 0;
-#ifndef CONFIG_CS8952_PHY
- miiphy_read (reg, PHY_BMSR, ®_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, ®_short);
- }
- puts (" done\n");
- udelay (500000); /* another 500 ms (results in faster booting) */
- }
-#endif
- 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");
- }
-
- 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);
- }
-
- /* 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 (((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 (((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);
- 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) {
-#if defined(CONFIG_NET_MULTI)
- case 1:
- /* setup MAL tx & rx channel pointers */
- /* For 405EP, the EMAC1 tx channel 0 is MAL tx channel 2 */
- mtdcr (maltxctp2r, hw_p->tx);
- mtdcr (malrxctp1r, hw_p->rx);
- /* set RX buffer size */
- mtdcr (malrcbs1, ENET_MAX_MTU_ALIGNED / 16);
- break;
-#endif
- case 0:
- default:
- /* setup MAL tx & rx channel pointers */
- 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 */
- mtdcr (maltxcasr, (MAL_TXRX_CASR >> (hw_p->devnum * 2)));
- 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 == _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);
-
-#if defined(CONFIG_440)
- /* set speed in the ZMII bridge */
- if (speed == _100BASET)
- out32(ZMII_SSR, in32(ZMII_SSR) | 0x10000000);
- else
- out32(ZMII_SSR, in32(ZMII_SSR) & ~0x10000000);
-#if defined(CONFIG_440EP) || defined(CONFIG_440GR)
- mfsdr(sdr_mfr, reg);
- /* set speed */
- if (speed == _100BASET) {
- out32(ZMII_SSR, in32(ZMII_SSR) | 0x10000000);
- 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;
- out32(ZMII_SSR, in32(ZMII_SSR) & ~0x10000000);
- }
- mtsdr(sdr_mfr, reg);
-#endif
-#endif
-
- /* 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 */
-
-#if defined(CONFIG_440)
- /* 440GP has a 64 byte burst length */
- out32 (EMAC_RX_HI_LO_WMARK + hw_p->hw_addr, 0x0f002000);
- out32 (EMAC_TXM1 + hw_p->hw_addr, 0xf8640000);
-#else
- /* 405s have a 16 byte burst length */
- out32 (EMAC_RX_HI_LO_WMARK + hw_p->hw_addr, 0x0f002000);
-#endif
-
- /* 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_405_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_405_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;
- EMAC_405_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 (!(my_uic0msr & UIC_MRE)
- && !(my_uic1msr & (UIC_ETH0 | UIC_MS | UIC_MTDE | UIC_MRDE))) {
- /* not for us */
- return (rc);
- }
-
- /* get and clear controller status interrupts */
- /* look at Mal and EMAC interrupts */
- if ((my_uic0msr & UIC_MRE)
- || (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;
- }
- }
- 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); /* Clear */
- mtdcr (uic1sr, UIC_ETH0 | UIC_MS | UIC_MTDE | UIC_MRDE); /* Clear */
- return (rc); /* we had errors so get out */
- }
-
- /* 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 0 */
- /* 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_ETH0 | UIC_MS | UIC_MTDE | UIC_MRDE); /* Clear */
- } 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_405_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
-/*-----------------------------------------------------------------------------+
- * 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_405_HW_PST hw_p = dev->priv;
-
- mtdcr (malesr, isr); /* clear interrupt */
-
- /* clear DE interrupt */
- mtdcr (maltxdeir, 0xC0000000);
- mtdcr (malrxdeir, 0x80000000);
-
-#ifdef INFO_405_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_405_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_405_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_405_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;
-
- /* printf("X"); /|* test-only *|/ */
-
- /* 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_405_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_405_ENET
- hw_p->stats.pkts_handled++;
-#endif
-
- mtmsr (msr); /* Enable IRQ's */
- }
-
- hw_p->is_receiving = 0; /* tell driver */
-
- return length;
-}
-
-static int virgin = 0;
-int ppc_4xx_eth_initialize (bd_t * bis)
-{
- struct eth_device *dev;
- int eth_num = 0;
-
- EMAC_405_HW_PST hw = NULL;
-
- for (eth_num = 0; eth_num < EMAC_NUM_DEV; eth_num++) {
-
- /* Allocate device structure */
- dev = (struct eth_device *) malloc (sizeof (*dev));
- if (dev == NULL) {
- printf ("ppc_405x_eth_initialize: "
- "Cannot allocate eth_device %d\n", eth_num);
- return (-1);
- }
- memset(dev, 0, sizeof(*dev));
- /* Allocate our private use data */
- hw = (EMAC_405_HW_PST) malloc (sizeof (*hw));
- if (hw == NULL) {
- printf ("ppc_405x_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) {
- case 0:
- hw->hw_addr = 0;
- memcpy (dev->enetaddr, bis->bi_enetaddr, 6);
- break;
-#if defined(CONFIG_NET_MULTI)
- case 1:
- hw->hw_addr = 0x100;
- memcpy (dev->enetaddr, bis->bi_enet1addr, 6);
- break;
-#endif
- default:
- hw->hw_addr = 0;
- memcpy (dev->enetaddr, bis->bi_enetaddr, 6);
- break;
- }
-
- hw->devnum = eth_num;
- hw->print_speed = 1;
-
- sprintf (dev->name, "ppc_405x_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
-
-#endif /* CONFIG_405 */
projects / people / ms / u-boot.git / blobdiff