diff options
Diffstat (limited to 'arch/powerpc/cpu/mpc8260/ether_fcc.c')
| -rw-r--r-- | arch/powerpc/cpu/mpc8260/ether_fcc.c | 1155 |
1 files changed, 0 insertions, 1155 deletions
diff --git a/arch/powerpc/cpu/mpc8260/ether_fcc.c b/arch/powerpc/cpu/mpc8260/ether_fcc.c deleted file mode 100644 index 072eb76150..0000000000 --- a/arch/powerpc/cpu/mpc8260/ether_fcc.c +++ /dev/null @@ -1,1155 +0,0 @@ -/* - * MPC8260 FCC Fast Ethernet - * - * Copyright (c) 2000 MontaVista Software, Inc. Dan Malek (dmalek@jlc.net) - * - * (C) Copyright 2000 Sysgo Real-Time Solutions, GmbH <www.elinos.com> - * Marius Groeger <mgroeger@sysgo.de> - * - * SPDX-License-Identifier: GPL-2.0+ - */ - -/* - * MPC8260 FCC Fast Ethernet - * Basic ET HW initialization and packet RX/TX routines - * - * This code will not perform the IO port configuration. This should be - * done in the iop_conf_t structure specific for the board. - * - * TODO: - * add a PHY driver to do the negotiation - * reflect negotiation results in FPSMR - * look for ways to configure the board specific stuff elsewhere, eg. - * config_xxx.h or the board directory - */ - -#include <common.h> -#include <console.h> -#include <malloc.h> -#include <asm/cpm_8260.h> -#include <mpc8260.h> -#include <command.h> -#include <config.h> -#include <net.h> - -#if defined(CONFIG_MII) || defined(CONFIG_CMD_MII) -#include <miiphy.h> -#endif - -DECLARE_GLOBAL_DATA_PTR; - -#if defined(CONFIG_ETHER_ON_FCC) && defined(CONFIG_CMD_NET) - -static struct ether_fcc_info_s -{ - int ether_index; - int proff_enet; - ulong cpm_cr_enet_sblock; - ulong cpm_cr_enet_page; - ulong cmxfcr_mask; - ulong cmxfcr_value; -} - ether_fcc_info[] = -{ -#ifdef CONFIG_ETHER_ON_FCC1 -{ - 0, - PROFF_FCC1, - CPM_CR_FCC1_SBLOCK, - CPM_CR_FCC1_PAGE, - CONFIG_SYS_CMXFCR_MASK1, - CONFIG_SYS_CMXFCR_VALUE1 -}, -#endif - -#ifdef CONFIG_ETHER_ON_FCC2 -{ - 1, - PROFF_FCC2, - CPM_CR_FCC2_SBLOCK, - CPM_CR_FCC2_PAGE, - CONFIG_SYS_CMXFCR_MASK2, - CONFIG_SYS_CMXFCR_VALUE2 -}, -#endif - -#ifdef CONFIG_ETHER_ON_FCC3 -{ - 2, - PROFF_FCC3, - CPM_CR_FCC3_SBLOCK, - CPM_CR_FCC3_PAGE, - CONFIG_SYS_CMXFCR_MASK3, - CONFIG_SYS_CMXFCR_VALUE3 -}, -#endif -}; - -/*---------------------------------------------------------------------*/ - -/* Maximum input DMA size. Must be a should(?) be a multiple of 4. */ -#define PKT_MAXDMA_SIZE 1520 - -/* The FCC stores dest/src/type, data, and checksum for receive packets. */ -#define PKT_MAXBUF_SIZE 1518 -#define PKT_MINBUF_SIZE 64 - -/* Maximum input buffer size. Must be a multiple of 32. */ -#define PKT_MAXBLR_SIZE 1536 - -#define TOUT_LOOP 1000000 - -#define TX_BUF_CNT 2 -#ifdef __GNUC__ -static char txbuf[TX_BUF_CNT][PKT_MAXBLR_SIZE] __attribute__ ((aligned(8))); -#else -#error "txbuf must be 64-bit aligned" -#endif - -static uint rxIdx; /* index of the current RX buffer */ -static uint txIdx; /* index of the current TX buffer */ - -/* - * FCC Ethernet Tx and Rx buffer descriptors. - * Provide for Double Buffering - * Note: PKTBUFSRX is defined in net.h - */ - -typedef volatile struct rtxbd { - cbd_t rxbd[PKTBUFSRX]; - cbd_t txbd[TX_BUF_CNT]; -} RTXBD; - -/* Good news: the FCC supports external BDs! */ -#ifdef __GNUC__ -static RTXBD rtx __attribute__ ((aligned(8))); -#else -#error "rtx must be 64-bit aligned" -#endif - -static int fec_send(struct eth_device *dev, void *packet, int length) -{ - int i; - int result = 0; - - if (length <= 0) { - printf("fec: bad packet size: %d\n", length); - goto out; - } - - for(i=0; rtx.txbd[txIdx].cbd_sc & BD_ENET_TX_READY; i++) { - if (i >= TOUT_LOOP) { - puts ("fec: tx buffer not ready\n"); - goto out; - } - } - - rtx.txbd[txIdx].cbd_bufaddr = (uint)packet; - rtx.txbd[txIdx].cbd_datlen = length; - rtx.txbd[txIdx].cbd_sc |= (BD_ENET_TX_READY | BD_ENET_TX_LAST | - BD_ENET_TX_WRAP); - - for(i=0; rtx.txbd[txIdx].cbd_sc & BD_ENET_TX_READY; i++) { - if (i >= TOUT_LOOP) { - puts ("fec: tx error\n"); - goto out; - } - } - -#ifdef ET_DEBUG - printf("cycles: %d status: %04x\n", i, rtx.txbd[txIdx].cbd_sc); -#endif - - /* return only status bits */ - result = rtx.txbd[txIdx].cbd_sc & BD_ENET_TX_STATS; - -out: - return result; -} - -static int fec_recv(struct eth_device* dev) -{ - int length; - - for (;;) - { - if (rtx.rxbd[rxIdx].cbd_sc & BD_ENET_RX_EMPTY) { - length = -1; - break; /* nothing received - leave for() loop */ - } - length = rtx.rxbd[rxIdx].cbd_datlen; - - if (rtx.rxbd[rxIdx].cbd_sc & 0x003f) { - printf("fec: rx error %04x\n", rtx.rxbd[rxIdx].cbd_sc); - } - else { - /* Pass the packet up to the protocol layers. */ - net_process_received_packet(net_rx_packets[rxIdx], length - 4); - } - - - /* Give the buffer back to the FCC. */ - rtx.rxbd[rxIdx].cbd_datlen = 0; - - /* wrap around buffer index when necessary */ - if ((rxIdx + 1) >= PKTBUFSRX) { - rtx.rxbd[PKTBUFSRX - 1].cbd_sc = (BD_ENET_RX_WRAP | BD_ENET_RX_EMPTY); - rxIdx = 0; - } - else { - rtx.rxbd[rxIdx].cbd_sc = BD_ENET_RX_EMPTY; - rxIdx++; - } - } - return length; -} - - -static int fec_init(struct eth_device* dev, bd_t *bis) -{ - struct ether_fcc_info_s * info = dev->priv; - int i; - volatile immap_t *immr = (immap_t *)CONFIG_SYS_IMMR; - volatile cpm8260_t *cp = &(immr->im_cpm); - fcc_enet_t *pram_ptr; - unsigned long mem_addr; - -#if 0 - mii_discover_phy(); -#endif - - /* 28.9 - (1-2): ioports have been set up already */ - - /* 28.9 - (3): connect FCC's tx and rx clocks */ - immr->im_cpmux.cmx_uar = 0; - immr->im_cpmux.cmx_fcr = (immr->im_cpmux.cmx_fcr & ~info->cmxfcr_mask) | - info->cmxfcr_value; - - /* 28.9 - (4): GFMR: disable tx/rx, CCITT CRC, Mode Ethernet */ - immr->im_fcc[info->ether_index].fcc_gfmr = - FCC_GFMR_MODE_ENET | FCC_GFMR_TCRC_32; - - /* 28.9 - (5): FPSMR: enable full duplex, select CCITT CRC for Ethernet */ - immr->im_fcc[info->ether_index].fcc_fpsmr = CONFIG_SYS_FCC_PSMR | FCC_PSMR_ENCRC; - - /* 28.9 - (6): FDSR: Ethernet Syn */ - immr->im_fcc[info->ether_index].fcc_fdsr = 0xD555; - - /* reset indeces to current rx/tx bd (see eth_send()/eth_rx()) */ - rxIdx = 0; - txIdx = 0; - - /* Setup Receiver Buffer Descriptors */ - for (i = 0; i < PKTBUFSRX; i++) - { - rtx.rxbd[i].cbd_sc = BD_ENET_RX_EMPTY; - rtx.rxbd[i].cbd_datlen = 0; - rtx.rxbd[i].cbd_bufaddr = (uint)net_rx_packets[i]; - } - rtx.rxbd[PKTBUFSRX - 1].cbd_sc |= BD_ENET_RX_WRAP; - - /* Setup Ethernet Transmitter Buffer Descriptors */ - for (i = 0; i < TX_BUF_CNT; i++) - { - rtx.txbd[i].cbd_sc = (BD_ENET_TX_PAD | BD_ENET_TX_LAST | BD_ENET_TX_TC); - rtx.txbd[i].cbd_datlen = 0; - rtx.txbd[i].cbd_bufaddr = (uint)&txbuf[i][0]; - } - rtx.txbd[TX_BUF_CNT - 1].cbd_sc |= BD_ENET_TX_WRAP; - - /* 28.9 - (7): initialise parameter ram */ - pram_ptr = (fcc_enet_t *)&(immr->im_dprambase[info->proff_enet]); - - /* clear whole structure to make sure all reserved fields are zero */ - memset((void*)pram_ptr, 0, sizeof(fcc_enet_t)); - - /* - * common Parameter RAM area - * - * Allocate space in the reserved FCC area of DPRAM for the - * internal buffers. No one uses this space (yet), so we - * can do this. Later, we will add resource management for - * this area. - */ - mem_addr = CPM_FCC_SPECIAL_BASE + ((info->ether_index) * 64); - pram_ptr->fen_genfcc.fcc_riptr = mem_addr; - pram_ptr->fen_genfcc.fcc_tiptr = mem_addr+32; - /* - * Set maximum bytes per receive buffer. - * It must be a multiple of 32. - */ - pram_ptr->fen_genfcc.fcc_mrblr = PKT_MAXBLR_SIZE; - pram_ptr->fen_genfcc.fcc_rstate = (CPMFCR_GBL | CPMFCR_EB | - CONFIG_SYS_CPMFCR_RAMTYPE) << 24; - pram_ptr->fen_genfcc.fcc_rbase = (unsigned int)(&rtx.rxbd[rxIdx]); - pram_ptr->fen_genfcc.fcc_tstate = (CPMFCR_GBL | CPMFCR_EB | - CONFIG_SYS_CPMFCR_RAMTYPE) << 24; - pram_ptr->fen_genfcc.fcc_tbase = (unsigned int)(&rtx.txbd[txIdx]); - - /* protocol-specific area */ - pram_ptr->fen_cmask = 0xdebb20e3; /* CRC mask */ - pram_ptr->fen_cpres = 0xffffffff; /* CRC preset */ - pram_ptr->fen_retlim = 15; /* Retry limit threshold */ - pram_ptr->fen_mflr = PKT_MAXBUF_SIZE; /* maximum frame length register */ - /* - * Set Ethernet station address. - * - * This is supplied in the board information structure, so we - * copy that into the controller. - * So, far we have only been given one Ethernet address. We make - * it unique by setting a few bits in the upper byte of the - * non-static part of the address. - */ -#define ea eth_get_ethaddr() - pram_ptr->fen_paddrh = (ea[5] << 8) + ea[4]; - pram_ptr->fen_paddrm = (ea[3] << 8) + ea[2]; - pram_ptr->fen_paddrl = (ea[1] << 8) + ea[0]; -#undef ea - pram_ptr->fen_minflr = PKT_MINBUF_SIZE; /* minimum frame length register */ - /* pad pointer. use tiptr since we don't need a specific padding char */ - pram_ptr->fen_padptr = pram_ptr->fen_genfcc.fcc_tiptr; - pram_ptr->fen_maxd1 = PKT_MAXDMA_SIZE; /* maximum DMA1 length */ - pram_ptr->fen_maxd2 = PKT_MAXDMA_SIZE; /* maximum DMA2 length */ - pram_ptr->fen_rfthr = 1; - pram_ptr->fen_rfcnt = 1; -#if 0 - printf("pram_ptr->fen_genfcc.fcc_rbase %08lx\n", - pram_ptr->fen_genfcc.fcc_rbase); - printf("pram_ptr->fen_genfcc.fcc_tbase %08lx\n", - pram_ptr->fen_genfcc.fcc_tbase); -#endif - - /* 28.9 - (8): clear out events in FCCE */ - immr->im_fcc[info->ether_index].fcc_fcce = ~0x0; - - /* 28.9 - (9): FCCM: mask all events */ - immr->im_fcc[info->ether_index].fcc_fccm = 0; - - /* 28.9 - (10-12): we don't use ethernet interrupts */ - - /* 28.9 - (13) - * - * Let's re-initialize the channel now. We have to do it later - * than the manual describes because we have just now finished - * the BD initialization. - */ - cp->cp_cpcr = mk_cr_cmd(info->cpm_cr_enet_page, - info->cpm_cr_enet_sblock, - 0x0c, - CPM_CR_INIT_TRX) | CPM_CR_FLG; - do { - __asm__ __volatile__ ("eieio"); - } while (cp->cp_cpcr & CPM_CR_FLG); - - /* 28.9 - (14): enable tx/rx in gfmr */ - immr->im_fcc[info->ether_index].fcc_gfmr |= FCC_GFMR_ENT | FCC_GFMR_ENR; - - return 1; -} - -static void fec_halt(struct eth_device* dev) -{ - struct ether_fcc_info_s * info = dev->priv; - volatile immap_t *immr = (immap_t *)CONFIG_SYS_IMMR; - - /* write GFMR: disable tx/rx */ - immr->im_fcc[info->ether_index].fcc_gfmr &= - ~(FCC_GFMR_ENT | FCC_GFMR_ENR); -} - -int fec_initialize(bd_t *bis) -{ - struct eth_device* dev; - int i; - - for (i = 0; i < ARRAY_SIZE(ether_fcc_info); i++) - { - dev = (struct eth_device*) malloc(sizeof *dev); - memset(dev, 0, sizeof *dev); - - sprintf(dev->name, "FCC%d", - ether_fcc_info[i].ether_index + 1); - dev->priv = ðer_fcc_info[i]; - dev->init = fec_init; - dev->halt = fec_halt; - dev->send = fec_send; - dev->recv = fec_recv; - - eth_register(dev); - -#if (defined(CONFIG_MII) || defined(CONFIG_CMD_MII)) \ - && defined(CONFIG_BITBANGMII) - int retval; - struct mii_dev *mdiodev = mdio_alloc(); - if (!mdiodev) - return -ENOMEM; - strncpy(mdiodev->name, dev->name, MDIO_NAME_LEN); - mdiodev->read = bb_miiphy_read; - mdiodev->write = bb_miiphy_write; - - retval = mdio_register(mdiodev); - if (retval < 0) - return retval; -#endif - } - - return 1; -} - -#ifdef CONFIG_ETHER_LOOPBACK_TEST - -#define ELBT_BUFSZ 1024 /* must be multiple of 32 */ - -#define ELBT_CRCSZ 4 - -#define ELBT_NRXBD 4 /* must be at least 2 */ -#define ELBT_NTXBD 4 - -#define ELBT_MAXRXERR 32 -#define ELBT_MAXTXERR 32 - -#define ELBT_CLSWAIT 1000 /* msec to wait for further input frames */ - -typedef - struct { - uint off; - char *lab; - } -elbt_prdesc; - -typedef - struct { - uint _l, _f, m, bc, mc, lg, no, sh, cr, ov, cl; - uint badsrc, badtyp, badlen, badbit; - } -elbt_rxeacc; - -static elbt_prdesc rxeacc_descs[] = { - { offsetof(elbt_rxeacc, _l), "Not Last in Frame" }, - { offsetof(elbt_rxeacc, _f), "Not First in Frame" }, - { offsetof(elbt_rxeacc, m), "Address Miss" }, - { offsetof(elbt_rxeacc, bc), "Broadcast Address" }, - { offsetof(elbt_rxeacc, mc), "Multicast Address" }, - { offsetof(elbt_rxeacc, lg), "Frame Length Violation"}, - { offsetof(elbt_rxeacc, no), "Non-Octet Alignment" }, - { offsetof(elbt_rxeacc, sh), "Short Frame" }, - { offsetof(elbt_rxeacc, cr), "CRC Error" }, - { offsetof(elbt_rxeacc, ov), "Overrun" }, - { offsetof(elbt_rxeacc, cl), "Collision" }, - { offsetof(elbt_rxeacc, badsrc), "Bad Src Address" }, - { offsetof(elbt_rxeacc, badtyp), "Bad Frame Type" }, - { offsetof(elbt_rxeacc, badlen), "Bad Frame Length" }, - { offsetof(elbt_rxeacc, badbit), "Data Compare Errors" }, -}; -static int rxeacc_ndesc = ARRAY_SIZE(rxeacc_descs); - -typedef - struct { - uint def, hb, lc, rl, rc, un, csl; - } -elbt_txeacc; - -static elbt_prdesc txeacc_descs[] = { - { offsetof(elbt_txeacc, def), "Defer Indication" }, - { offsetof(elbt_txeacc, hb), "Heartbeat" }, - { offsetof(elbt_txeacc, lc), "Late Collision" }, - { offsetof(elbt_txeacc, rl), "Retransmission Limit" }, - { offsetof(elbt_txeacc, rc), "Retry Count" }, - { offsetof(elbt_txeacc, un), "Underrun" }, - { offsetof(elbt_txeacc, csl), "Carrier Sense Lost" }, -}; -static int txeacc_ndesc = ARRAY_SIZE(txeacc_descs); - -typedef - struct { - uchar rxbufs[ELBT_NRXBD][ELBT_BUFSZ]; - uchar txbufs[ELBT_NTXBD][ELBT_BUFSZ]; - cbd_t rxbd[ELBT_NRXBD]; - cbd_t txbd[ELBT_NTXBD]; - enum { Idle, Running, Closing, Closed } state; - int proff, page, sblock; - uint clstime, nsent, ntxerr, nrcvd, nrxerr; - ushort rxerrs[ELBT_MAXRXERR], txerrs[ELBT_MAXTXERR]; - elbt_rxeacc rxeacc; - elbt_txeacc txeacc; - } __attribute__ ((aligned(8))) -elbt_chan; - -static uchar patbytes[ELBT_NTXBD] = { - 0xff, 0xaa, 0x55, 0x00 -}; -static uint patwords[ELBT_NTXBD] = { - 0xffffffff, 0xaaaaaaaa, 0x55555555, 0x00000000 -}; - -#ifdef __GNUC__ -static elbt_chan elbt_chans[3] __attribute__ ((aligned(8))); -#else -#error "elbt_chans must be 64-bit aligned" -#endif - -#define CPM_CR_GRACEFUL_STOP_TX ((ushort)0x0005) - -static elbt_prdesc epram_descs[] = { - { offsetof(fcc_enet_t, fen_crcec), "CRC Errors" }, - { offsetof(fcc_enet_t, fen_alec), "Alignment Errors" }, - { offsetof(fcc_enet_t, fen_disfc), "Discarded Frames" }, - { offsetof(fcc_enet_t, fen_octc), "Octets" }, - { offsetof(fcc_enet_t, fen_colc), "Collisions" }, - { offsetof(fcc_enet_t, fen_broc), "Broadcast Frames" }, - { offsetof(fcc_enet_t, fen_mulc), "Multicast Frames" }, - { offsetof(fcc_enet_t, fen_uspc), "Undersize Frames" }, - { offsetof(fcc_enet_t, fen_frgc), "Fragments" }, - { offsetof(fcc_enet_t, fen_ospc), "Oversize Frames" }, - { offsetof(fcc_enet_t, fen_jbrc), "Jabbers" }, - { offsetof(fcc_enet_t, fen_p64c), "64 Octet Frames" }, - { offsetof(fcc_enet_t, fen_p65c), "65-127 Octet Frames" }, - { offsetof(fcc_enet_t, fen_p128c), "128-255 Octet Frames" }, - { offsetof(fcc_enet_t, fen_p256c), "256-511 Octet Frames" }, - { offsetof(fcc_enet_t, fen_p512c), "512-1023 Octet Frames" }, - { offsetof(fcc_enet_t, fen_p1024c), "1024-1518 Octet Frames"}, -}; -static int epram_ndesc = ARRAY_SIZE(epram_descs); - -/* - * given an elbt_prdesc array and an array of base addresses, print - * each prdesc down the screen with the values fetched from each - * base address across the screen - */ -static void -print_desc (elbt_prdesc descs[], int ndesc, uchar *bases[], int nbase) -{ - elbt_prdesc *dp = descs, *edp = dp + ndesc; - int i; - - printf ("%32s", ""); - - for (i = 0; i < nbase; i++) - printf (" Channel %d", i); - - putc ('\n'); - - while (dp < edp) { - - printf ("%-32s", dp->lab); - - for (i = 0; i < nbase; i++) { - uint val = *(uint *)(bases[i] + dp->off); - - printf (" %10u", val); - } - - putc ('\n'); - - dp++; - } -} - -/* - * return number of bits that are set in a value; value contains - * nbits (right-justified) bits. - */ -static uint __inline__ -nbs (uint value, uint nbits) -{ - uint cnt = 0; -#if 1 - uint pos = sizeof (uint) * 8; - - __asm__ __volatile__ ("\ - mtctr %2\n\ -1: rlwnm. %2,%1,%4,31,31\n\ - beq 2f\n\ - addi %0,%0,1\n\ -2: subi %4,%4,1\n\ - bdnz 1b" - : "=r"(cnt) - : "r"(value), "r"(nbits), "r"(cnt), "r"(pos) - : "ctr", "cc" ); -#else - uint mask = 1; - - do { - if (value & mask) - cnt++; - mask <<= 1; - } while (--nbits); -#endif - - return (cnt); -} - -static ulong -badbits (uchar *bp, int n, ulong pat) -{ - ulong *lp, cnt = 0; - int nl; - - while (n > 0 && ((ulong)bp & (sizeof (ulong) - 1)) != 0) { - uchar diff; - - diff = *bp++ ^ (uchar)pat; - - if (diff) - cnt += nbs ((ulong)diff, 8); - - n--; - } - - lp = (ulong *)bp; - nl = n / sizeof (ulong); - n -= nl * sizeof (ulong); - - while (nl > 0) { - ulong diff; - - diff = *lp++ ^ pat; - - if (diff) - cnt += nbs (diff, 32); - - nl--; - } - - bp = (uchar *)lp; - - while (n > 0) { - uchar diff; - - diff = *bp++ ^ (uchar)pat; - - if (diff) - cnt += nbs ((ulong)diff, 8); - - n--; - } - - return (cnt); -} - -static inline unsigned short -swap16 (unsigned short x) -{ - return (((x & 0xff) << 8) | ((x & 0xff00) >> 8)); -} - -/* broadcast is not an error - we send them like that */ -#define BD_ENET_RX_ERRS (BD_ENET_RX_STATS & ~BD_ENET_RX_BC) - -void -eth_loopback_test (void) -{ - volatile immap_t *immr = (immap_t *)CONFIG_SYS_IMMR; - volatile cpm8260_t *cp = &(immr->im_cpm); - int c, nclosed; - ulong runtime, nmsec; - uchar *bases[3]; - - puts ("FCC Ethernet External loopback test\n"); - - eth_getenv_enetaddr("ethaddr", net_ethaddr); - - /* - * global initialisations for all FCC channels - */ - - /* 28.9 - (1-2): ioports have been set up already */ - -#if defined(CONFIG_SACSng) - /* - * Attention: this is board-specific - * 1, FCC2 - */ -# define FCC_START_LOOP 1 -# define FCC_END_LOOP 1 - - /* - * Attention: this is board-specific - * - FCC2 Rx-CLK is CLK13 - * - FCC2 Tx-CLK is CLK14 - */ - - /* 28.9 - (3): connect FCC's tx and rx clocks */ - immr->im_cpmux.cmx_uar = 0; - immr->im_cpmux.cmx_fcr = CMXFCR_RF2CS_CLK13|CMXFCR_TF2CS_CLK14; -#else -#error "eth_loopback_test not supported on your board" -#endif - - puts ("Initialise FCC channels:"); - - for (c = FCC_START_LOOP; c <= FCC_END_LOOP; c++) { - elbt_chan *ecp = &elbt_chans[c]; - volatile fcc_t *fcp = &immr->im_fcc[c]; - volatile fcc_enet_t *fpp; - int i; - ulong addr; - - /* - * initialise channel data - */ - - printf (" %d", c); - - memset ((void *)ecp, 0, sizeof (*ecp)); - - ecp->state = Idle; - - switch (c) { - - case 0: /* FCC1 */ - ecp->proff = PROFF_FCC1; - ecp->page = CPM_CR_FCC1_PAGE; - ecp->sblock = CPM_CR_FCC1_SBLOCK; - break; - - case 1: /* FCC2 */ - ecp->proff = PROFF_FCC2; - ecp->page = CPM_CR_FCC2_PAGE; - ecp->sblock = CPM_CR_FCC2_SBLOCK; - break; - - case 2: /* FCC3 */ - ecp->proff = PROFF_FCC3; - ecp->page = CPM_CR_FCC3_PAGE; - ecp->sblock = CPM_CR_FCC3_SBLOCK; - break; - } - - /* - * set up tx buffers and bds - */ - - for (i = 0; i < ELBT_NTXBD; i++) { - cbd_t *bdp = &ecp->txbd[i]; - uchar *bp = &ecp->txbufs[i][0]; - - bdp->cbd_bufaddr = (uint)bp; - /* room for crc */ - bdp->cbd_datlen = ELBT_BUFSZ - ELBT_CRCSZ; - bdp->cbd_sc = BD_ENET_TX_READY | BD_ENET_TX_PAD | \ - BD_ENET_TX_LAST | BD_ENET_TX_TC; - - memset((void *)bp, patbytes[i], ELBT_BUFSZ); - net_set_ether(bp, net_bcast_ethaddr, 0x8000); - } - ecp->txbd[ELBT_NTXBD - 1].cbd_sc |= BD_ENET_TX_WRAP; - - /* - * set up rx buffers and bds - */ - - for (i = 0; i < ELBT_NRXBD; i++) { - cbd_t *bdp = &ecp->rxbd[i]; - uchar *bp = &ecp->rxbufs[i][0]; - - bdp->cbd_bufaddr = (uint)bp; - bdp->cbd_datlen = 0; - bdp->cbd_sc = BD_ENET_RX_EMPTY; - - memset ((void *)bp, 0, ELBT_BUFSZ); - } - ecp->rxbd[ELBT_NRXBD - 1].cbd_sc |= BD_ENET_RX_WRAP; - - /* - * set up the FCC channel hardware - */ - - /* 28.9 - (4): GFMR: disable tx/rx, CCITT CRC, Mode Ethernet */ - fcp->fcc_gfmr = FCC_GFMR_MODE_ENET | FCC_GFMR_TCRC_32; - - /* 28.9 - (5): FPSMR: fd, enet CRC, Promis, RMON, Rx SHort */ - fcp->fcc_fpsmr = FCC_PSMR_FDE | FCC_PSMR_LPB | \ - FCC_PSMR_ENCRC | FCC_PSMR_PRO | \ - FCC_PSMR_MON | FCC_PSMR_RSH; - - /* 28.9 - (6): FDSR: Ethernet Syn */ - fcp->fcc_fdsr = 0xD555; - - /* 29.9 - (7): initialise parameter ram */ - fpp = (fcc_enet_t *)&(immr->im_dprambase[ecp->proff]); - - /* clear whole struct to make sure all resv fields are zero */ - memset ((void *)fpp, 0, sizeof (fcc_enet_t)); - - /* - * common Parameter RAM area - * - * Allocate space in the reserved FCC area of DPRAM for the - * internal buffers. No one uses this space (yet), so we - * can do this. Later, we will add resource management for - * this area. - */ - addr = CPM_FCC_SPECIAL_BASE + (c * 64); - fpp->fen_genfcc.fcc_riptr = addr; - fpp->fen_genfcc.fcc_tiptr = addr + 32; - - /* - * Set maximum bytes per receive buffer. - * It must be a multiple of 32. - * buffers are in 60x bus memory. - */ - fpp->fen_genfcc.fcc_mrblr = PKT_MAXBLR_SIZE; - fpp->fen_genfcc.fcc_rstate = (CPMFCR_GBL | CPMFCR_EB) << 24; - fpp->fen_genfcc.fcc_rbase = (unsigned int)(&ecp->rxbd[0]); - fpp->fen_genfcc.fcc_tstate = (CPMFCR_GBL | CPMFCR_EB) << 24; - fpp->fen_genfcc.fcc_tbase = (unsigned int)(&ecp->txbd[0]); - - /* protocol-specific area */ - fpp->fen_cmask = 0xdebb20e3; /* CRC mask */ - fpp->fen_cpres = 0xffffffff; /* CRC preset */ - fpp->fen_retlim = 15; /* Retry limit threshold */ - fpp->fen_mflr = PKT_MAXBUF_SIZE;/* max frame length register */ - - /* - * Set Ethernet station address. - * - * This is supplied in the board information structure, so we - * copy that into the controller. - * So, far we have only been given one Ethernet address. We use - * the same address for all channels - */ - fpp->fen_paddrh = (net_ethaddr[5] << 8) + net_ethaddr[4]; - fpp->fen_paddrm = (net_ethaddr[3] << 8) + net_ethaddr[2]; - fpp->fen_paddrl = (net_ethaddr[1] << 8) + net_ethaddr[0]; - - fpp->fen_minflr = PKT_MINBUF_SIZE; /* min frame len register */ - /* - * pad pointer. use tiptr since we don't need - * a specific padding char - */ - fpp->fen_padptr = fpp->fen_genfcc.fcc_tiptr; - fpp->fen_maxd1 = PKT_MAXDMA_SIZE; /* max DMA1 length */ - fpp->fen_maxd2 = PKT_MAXDMA_SIZE; /* max DMA2 length */ - fpp->fen_rfthr = 1; - fpp->fen_rfcnt = 1; - - /* 28.9 - (8): clear out events in FCCE */ - fcp->fcc_fcce = ~0x0; - - /* 28.9 - (9): FCCM: mask all events */ - fcp->fcc_fccm = 0; - - /* 28.9 - (10-12): we don't use ethernet interrupts */ - - /* 28.9 - (13) - * - * Let's re-initialize the channel now. We have to do it later - * than the manual describes because we have just now finished - * the BD initialization. - */ - cp->cp_cpcr = mk_cr_cmd (ecp->page, ecp->sblock, \ - 0x0c, CPM_CR_INIT_TRX) | CPM_CR_FLG; - do { - __asm__ __volatile__ ("eieio"); - } while (cp->cp_cpcr & CPM_CR_FLG); - } - - puts (" done\nStarting test... (Ctrl-C to Finish)\n"); - - /* - * Note: don't want serial output from here until the end of the - * test - the delays would probably stuff things up. - */ - - clear_ctrlc (); - runtime = get_timer (0); - - do { - nclosed = 0; - - for (c = FCC_START_LOOP; c <= FCC_END_LOOP; c++) { - volatile fcc_t *fcp = &immr->im_fcc[c]; - elbt_chan *ecp = &elbt_chans[c]; - int i; - - switch (ecp->state) { - - case Idle: - /* - * set the channel Running ... - */ - - /* 28.9 - (14): enable tx/rx in gfmr */ - fcp->fcc_gfmr |= FCC_GFMR_ENT | FCC_GFMR_ENR; - - ecp->state = Running; - break; - - case Running: - /* - * (while Running only) check for - * termination of the test - */ - - (void)ctrlc (); - - if (had_ctrlc ()) { - /* - * initiate a "graceful stop transmit" - * on the channel - */ - cp->cp_cpcr = mk_cr_cmd (ecp->page, \ - ecp->sblock, 0x0c, \ - CPM_CR_GRACEFUL_STOP_TX) | \ - CPM_CR_FLG; - do { - __asm__ __volatile__ ("eieio"); - } while (cp->cp_cpcr & CPM_CR_FLG); - - ecp->clstime = get_timer (0); - ecp->state = Closing; - } - /* fall through ... */ - - case Closing: - /* - * (while Running or Closing) poll the channel: - * - check for any non-READY tx buffers and - * make them ready - * - check for any non-EMPTY rx buffers and - * check that they were received correctly, - * adjust counters etc, then make empty - */ - - for (i = 0; i < ELBT_NTXBD; i++) { - cbd_t *bdp = &ecp->txbd[i]; - ushort sc = bdp->cbd_sc; - - if ((sc & BD_ENET_TX_READY) != 0) - continue; - - /* - * this frame has finished - * transmitting - */ - ecp->nsent++; - - if (sc & BD_ENET_TX_STATS) { - ulong n; - - /* - * we had an error on - * the transmission - */ - n = ecp->ntxerr++; - if (n < ELBT_MAXTXERR) - ecp->txerrs[n] = sc; - - if (sc & BD_ENET_TX_DEF) - ecp->txeacc.def++; - if (sc & BD_ENET_TX_HB) - ecp->txeacc.hb++; - if (sc & BD_ENET_TX_LC) - ecp->txeacc.lc++; - if (sc & BD_ENET_TX_RL) - ecp->txeacc.rl++; - if (sc & BD_ENET_TX_RCMASK) - ecp->txeacc.rc++; - if (sc & BD_ENET_TX_UN) - ecp->txeacc.un++; - if (sc & BD_ENET_TX_CSL) - ecp->txeacc.csl++; - - bdp->cbd_sc &= \ - ~BD_ENET_TX_STATS; - } - - if (ecp->state == Closing) - ecp->clstime = get_timer (0); - - /* make it ready again */ - bdp->cbd_sc |= BD_ENET_TX_READY; - } - - for (i = 0; i < ELBT_NRXBD; i++) { - cbd_t *bdp = &ecp->rxbd[i]; - ushort sc = bdp->cbd_sc, mask; - - if ((sc & BD_ENET_RX_EMPTY) != 0) - continue; - - /* we have a new frame in this buffer */ - ecp->nrcvd++; - - mask = BD_ENET_RX_LAST|BD_ENET_RX_FIRST; - if ((sc & mask) != mask) { - /* somethings wrong here ... */ - if (!(sc & BD_ENET_RX_LAST)) - ecp->rxeacc._l++; - if (!(sc & BD_ENET_RX_FIRST)) - ecp->rxeacc._f++; - } - - if (sc & BD_ENET_RX_ERRS) { - ulong n; - - /* - * we had some sort of error - * on the frame - */ - n = ecp->nrxerr++; - if (n < ELBT_MAXRXERR) - ecp->rxerrs[n] = sc; - - if (sc & BD_ENET_RX_MISS) - ecp->rxeacc.m++; - if (sc & BD_ENET_RX_BC) - ecp->rxeacc.bc++; - if (sc & BD_ENET_RX_MC) - ecp->rxeacc.mc++; - if (sc & BD_ENET_RX_LG) - ecp->rxeacc.lg++; - if (sc & BD_ENET_RX_NO) - ecp->rxeacc.no++; - if (sc & BD_ENET_RX_SH) - ecp->rxeacc.sh++; - if (sc & BD_ENET_RX_CR) - ecp->rxeacc.cr++; - if (sc & BD_ENET_RX_OV) - ecp->rxeacc.ov++; - if (sc & BD_ENET_RX_CL) - ecp->rxeacc.cl++; - - bdp->cbd_sc &= \ - ~BD_ENET_RX_ERRS; - } - else { - ushort datlen = bdp->cbd_datlen; - struct ethernet_hdr *ehp; - ushort prot; - int ours, tb, n, nbytes; - - ehp = (struct ethernet_hdr *) \ - &ecp->rxbufs[i][0]; - - ours = memcmp (ehp->et_src, \ - net_ethaddr, 6); - - prot = swap16 (ehp->et_protlen); - tb = prot & 0x8000; - n = prot & 0x7fff; - - nbytes = ELBT_BUFSZ - - ETHER_HDR_SIZE - - ELBT_CRCSZ; - - /* check the frame is correct */ - if (datlen != ELBT_BUFSZ) - ecp->rxeacc.badlen++; - else if (!ours) - ecp->rxeacc.badsrc++; - else if (!tb || n >= ELBT_NTXBD) - ecp->rxeacc.badtyp++; - else { - ulong patword = \ - patwords[n]; - uint nbb; - - nbb = badbits( - ((uchar *)&ehp) + - ETHER_HDR_SIZE, - nbytes, patword); - - ecp->rxeacc.badbit += \ - nbb; - } - } - - if (ecp->state == Closing) - ecp->clstime = get_timer (0); - - /* make it empty again */ - bdp->cbd_sc |= BD_ENET_RX_EMPTY; - } - - if (ecp->state != Closing) - break; - - /* - * (while Closing) check to see if - * waited long enough - */ - - if (get_timer (ecp->clstime) >= ELBT_CLSWAIT) { - /* write GFMR: disable tx/rx */ - fcp->fcc_gfmr &= \ - ~(FCC_GFMR_ENT | FCC_GFMR_ENR); - ecp->state = Closed; - } - - break; - - case Closed: - nclosed++; - break; - } - } - - } while (nclosed < (FCC_END_LOOP - FCC_START_LOOP + 1)); - - runtime = get_timer (runtime); - if (runtime <= ELBT_CLSWAIT) { - printf ("Whoops! somehow elapsed time (%ld) is wrong (<= %d)\n", - runtime, ELBT_CLSWAIT); - return; - } - nmsec = runtime - ELBT_CLSWAIT; - - printf ("Test Finished in %ldms (plus %dms close wait period)!\n\n", - nmsec, ELBT_CLSWAIT); - - /* - * now print stats - */ - - for (c = FCC_START_LOOP; c <= FCC_END_LOOP; c++) { - elbt_chan *ecp = &elbt_chans[c]; - uint rxpps, txpps, nerr; - - rxpps = (ecp->nrcvd * 1000) / nmsec; - txpps = (ecp->nsent * 1000) / nmsec; - - printf ("Channel %d: %d rcvd (%d pps, %d rxerrs), " - "%d sent (%d pps, %d txerrs)\n\n", c, - ecp->nrcvd, rxpps, ecp->nrxerr, - ecp->nsent, txpps, ecp->ntxerr); - - if ((nerr = ecp->nrxerr) > 0) { - ulong i; - - printf ("\tFirst %d rx errs:", nerr); - for (i = 0; i < nerr; i++) - printf (" %04x", ecp->rxerrs[i]); - putc ('\n'); - } - - if ((nerr = ecp->ntxerr) > 0) { - ulong i; - - printf ("\tFirst %d tx errs:", nerr); - for (i = 0; i < nerr; i++) - printf (" %04x", ecp->txerrs[i]); - putc ('\n'); - } - } - - puts ("Receive Error Counts:\n"); - for (c = FCC_START_LOOP; c <= FCC_END_LOOP; c++) - bases[c] = (uchar *)&elbt_chans[c].rxeacc; - print_desc (rxeacc_descs, rxeacc_ndesc, bases, 3); - - puts ("\nTransmit Error Counts:\n"); - for (c = FCC_START_LOOP; c <= FCC_END_LOOP; c++) - bases[c] = (uchar *)&elbt_chans[c].txeacc; - print_desc (txeacc_descs, txeacc_ndesc, bases, 3); - - puts ("\nRMON(-like) Counters:\n"); - for (c = FCC_START_LOOP; c <= FCC_END_LOOP; c++) - bases[c] = (uchar *)&immr->im_dprambase[elbt_chans[c].proff]; - print_desc (epram_descs, epram_ndesc, bases, 3); -} - -#endif /* CONFIG_ETHER_LOOPBACK_TEST */ - -#endif |