Patches by Murray Jensen, 17 Jun 2003:
- Hymod board database mods: add "who" field and new xilinx chip types
- provide new "init_cmd_timeout()" function so code external to
"common/main.c" can use the "reset_cmd_timeout()" function before
entering the main loop
- add DTT support for adm1021 (new file dtt/adm1021.c; config
slightly different. see include/configs/hymod.h for an example
(requires CONFIG_DTT_ADM1021, CONFIG_DTT_SENSORS, and
CFG_DTT_ADM1021 defined)
- add new "eeprom_probe()" function which has similar args and
behaves in a similar way to "eeprom_read()" etc.
- add 8260 FCC ethernet loopback code (new "eth_loopback_test()"
function which is enabled by defining CONFIG_ETHER_LOOPBACK_TEST)
- gdbtools copyright update
- ensure that set_msr() executes the "sync" and "isync" instructions
after the "mtmsr" instruction in cpu/mpc8260/interrupts.c
- 8260 I/O ports fix: Open Drain should be set last when configuring
- add SIU IRQ defines for 8260
- allow LDSCRIPT override and OBJCFLAGS initialization: change to
config.mk to allow board configurations to override the GNU
linker script, selected via the LDSCRIPT, make variable, and to
give an initial value to the OBJCFLAGS make variable
- 8260 i2c enhancement:
o correctly extends the timeout depending on the size of all
queued messages for both transmit and receive
o will not continue with receive if transmit times out
o ensures that the error callback is done for all queued tx
and rx messages
o correctly detects both tx and rx timeouts, only delivers one to
the callback, and does not overwrite an earlier error
o logic in i2c_probe now correct
- add "vprintf()" function so that "panic()" function can be
technically correct
- many Hymod board changes
diff --git a/cpu/mpc8260/cpu_init.c b/cpu/mpc8260/cpu_init.c
index 46ac975..d0545cf 100644
--- a/cpu/mpc8260/cpu_init.c
+++ b/cpu/mpc8260/cpu_init.c
@@ -80,9 +80,9 @@
*/
iop->ppar &= tpmsk;
iop->psor = (iop->psor & tpmsk) | psor;
+ iop->podr = (iop->podr & tpmsk) | podr;
iop->pdat = (iop->pdat & tpmsk) | pdat;
iop->pdir = (iop->pdir & tpmsk) | pdir;
- iop->podr = (iop->podr & tpmsk) | podr;
iop->ppar |= ppar;
}
}
diff --git a/cpu/mpc8260/ether_fcc.c b/cpu/mpc8260/ether_fcc.c
index bd2fcc9..45dca73 100644
--- a/cpu/mpc8260/ether_fcc.c
+++ b/cpu/mpc8260/ether_fcc.c
@@ -391,4 +391,761 @@
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 = sizeof (rxeacc_descs) / sizeof (rxeacc_descs[0]);
+
+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 = sizeof (txeacc_descs) / sizeof (txeacc_descs[0]);
+
+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 = sizeof (epram_descs) / sizeof (epram_descs[0]);
+
+/*
+ * 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);
+
+ puts ("\n");
+
+ while (dp < edp) {
+
+ printf ("%-32s", dp->lab);
+
+ for (i = 0; i < nbase; i++) {
+ uint val = *(uint *)(bases[i] + dp->off);
+
+ printf (" %10u", val);
+ }
+
+ puts ("\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));
+}
+
+void
+eth_loopback_test (void)
+{
+ DECLARE_GLOBAL_DATA_PTR;
+
+ volatile immap_t *immr = (immap_t *)CFG_IMMR;
+ volatile cpm8260_t *cp = &(immr->im_cpm);
+ int c, nclosed;
+ ulong runtime, nmsec;
+ uchar *bases[3];
+
+ puts ("FCC Ethernet External loopback test\n");
+
+ memcpy (NetOurEther, gd->bd->bi_enetaddr, 6);
+
+ /*
+ * global initialisations for all FCC channels
+ */
+
+ /* 28.9 - (1-2): ioports have been set up already */
+
+#if defined(CONFIG_HYMOD)
+ /*
+ * Attention: this is board-specific
+ * - FCC1 Rx-CLK is CLK10
+ * - FCC1 Tx-CLK is CLK11
+ * - FCC2 Rx-CLK is CLK13
+ * - FCC2 Tx-CLK is CLK14
+ * - FCC3 Rx-CLK is CLK15
+ * - FCC3 Tx-CLK is CLK16
+ */
+
+ /* 28.9 - (3): connect FCC's tx and rx clocks */
+ immr->im_cpmux.cmx_uar = 0;
+ immr->im_cpmux.cmx_fcr = CMXFCR_RF1CS_CLK10|CMXFCR_TF1CS_CLK11|\
+ CMXFCR_RF2CS_CLK13|CMXFCR_TF2CS_CLK14|\
+ CMXFCR_RF3CS_CLK15|CMXFCR_TF3CS_CLK16;
+#else
+#error "eth_loopback_test not supported on your board"
+#endif
+
+ puts ("Initialise FCC channels:");
+
+ for (c = 0; c < 3; 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);
+ NetSetEther (bp, NetBcastAddr, 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
+ */
+#define ea gd->bd->bi_enetaddr
+ fpp->fen_paddrh = (ea[5] << 8) + ea[4];
+ fpp->fen_paddrm = (ea[3] << 8) + ea[2];
+ fpp->fen_paddrl = (ea[1] << 8) + ea[0];
+#undef ea
+
+ 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 = 0; c < 3; 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_STATS) {
+ 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_STATS;
+ }
+ else {
+ ushort datlen = bdp->cbd_datlen;
+ Ethernet_t *ehp;
+ ushort prot;
+ int ours, tb, n, nbytes;
+
+ ehp = (Ethernet_t *) \
+ &ecp->rxbufs[i][0];
+
+ ours = memcmp (ehp->et_src, \
+ NetOurEther, 6);
+
+ prot = swap16 (ehp->et_protlen);
+ tb = prot & 0x8000;
+ n = prot & 0x7fff;
+
+ nbytes = ELBT_BUFSZ - \
+ offsetof (Ethernet_t, \
+ et_dsap) - \
+ 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 ( \
+ &ehp->et_dsap, \
+ 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 < 3);
+
+ 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 = 0; c < 3; 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]);
+ puts ("\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]);
+ puts ("\n");
+ }
+ }
+
+ puts ("Receive Error Counts:\n");
+ for (c = 0; c < 3; c++)
+ bases[c] = (uchar *)&elbt_chans[c].rxeacc;
+ print_desc (rxeacc_descs, rxeacc_ndesc, bases, 3);
+
+ puts ("\nTransmit Error Counts:\n");
+ for (c = 0; c < 3; c++)
+ bases[c] = (uchar *)&elbt_chans[c].txeacc;
+ print_desc (txeacc_descs, txeacc_ndesc, bases, 3);
+
+ puts ("\nRMON(-like) Counters:\n");
+ for (c = 0; c < 3; 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 /* CONFIG_ETHER_ON_FCC && CFG_CMD_NET && CONFIG_NET_MULTI */
diff --git a/cpu/mpc8260/i2c.c b/cpu/mpc8260/i2c.c
index 2d65e32..69ae535 100644
--- a/cpu/mpc8260/i2c.c
+++ b/cpu/mpc8260/i2c.c
@@ -58,7 +58,7 @@
/*-----------------------------------------------------------------------
*/
-typedef void (*i2c_ecb_t)(int, int); /* error callback function */
+typedef void (*i2c_ecb_t)(int, int, void *); /* error callback function */
/* This structure keeps track of the bd and buffer space usage. */
typedef struct i2c_state {
@@ -69,6 +69,7 @@
int tx_space; /* number of Tx bytes left */
unsigned char *tx_buf; /* pointer to free Tx area */
i2c_ecb_t err_cb; /* error callback function */
+ void *cb_data; /* private data to be passed */
} i2c_state_t;
/* flags for i2c_send() and i2c_receive() */
@@ -77,14 +78,15 @@
#define I2CF_STOP_COND 0x04 /* tx: generate stop condition */
/* return codes */
-#define I2CERR_NO_BUFFERS 0x01 /* no more BDs or buffer space */
-#define I2CERR_MSG_TOO_LONG 0x02 /* tried to send/receive to much data */
-#define I2CERR_TIMEOUT 0x03 /* timeout in i2c_doio() */
-#define I2CERR_QUEUE_EMPTY 0x04 /* i2c_doio called without send/receive */
+#define I2CERR_NO_BUFFERS 1 /* no more BDs or buffer space */
+#define I2CERR_MSG_TOO_LONG 2 /* tried to send/receive to much data */
+#define I2CERR_TIMEOUT 3 /* timeout in i2c_doio() */
+#define I2CERR_QUEUE_EMPTY 4 /* i2c_doio called without send/receive */
+#define I2CERR_IO_ERROR 5 /* had an error during comms */
/* error callback flags */
#define I2CECB_RX_ERR 0x10 /* this is a receive error */
-#define I2CECB_RX_ERR_OV 0x02 /* receive overrun error */
+#define I2CECB_RX_OV 0x02 /* receive overrun error */
#define I2CECB_RX_MASK 0x0f /* mask for error bits */
#define I2CECB_TX_ERR 0x20 /* this is a transmit error */
#define I2CECB_TX_CL 0x01 /* transmit collision error */
@@ -318,6 +320,7 @@
state->tx_space = MAX_TX_SPACE;
state->tx_buf = (uchar*)state->txbd + NUM_TX_BDS * sizeof(I2C_BD);
state->err_cb = NULL;
+ state->cb_data = NULL;
PRINTD(("[I2C] rxbd = %08x\n", (int)state->rxbd));
PRINTD(("[I2C] txbd = %08x\n", (int)state->txbd));
@@ -491,14 +494,11 @@
volatile iic_t *iip;
volatile i2c8260_t *i2c = (i2c8260_t *)&immap->im_i2c;
volatile I2C_BD *txbd, *rxbd;
- int j;
- int timeout;
+ int n, i, b, rxcnt = 0, rxtimeo = 0, txcnt = 0, txtimeo = 0, rc = 0;
uint dpaddr;
PRINTD(("[I2C] i2c_doio\n"));
- timeout = TOUT_LOOP * 256; /* arbitrarily long */
-
if (state->tx_idx <= 0 && state->rx_idx <= 0) {
PRINTD(("[I2C] No I/O is queued\n"));
return I2CERR_QUEUE_EMPTY;
@@ -518,14 +518,20 @@
/* Loop until transmit & receive completed */
- txbd = ((I2C_BD*)state->txbd) - 1;
- j = 0;
- if (state->tx_idx > 0) {
- timeout = TOUT_LOOP * txbd->length;
+ if ((n = state->tx_idx) > 0) {
+
+ txbd = ((I2C_BD*)state->txbd) - n;
+ for (i = 0; i < n; i++) {
+ txtimeo += TOUT_LOOP * txbd->length;
+ txbd++;
+ }
+
+ txbd--; /* wait until last in list is done */
PRINTD(("[I2C] Transmitting...(txbd=0x%08lx)\n", (ulong)txbd));
+
udelay(START_DELAY_US); /* give it time to start */
- while((txbd->status & BD_SC_READY) && (j++ < timeout)) {
+ while((txbd->status & BD_SC_READY) && (++txcnt < txtimeo)) {
udelay(DELAY_US);
if (ctrlc())
return (-1);
@@ -533,13 +539,20 @@
}
}
- rxbd = ((I2C_BD*)state->rxbd) - 1;
- j = 0;
- if ((state->rx_idx > 0) && (j < timeout)) {
- timeout = TOUT_LOOP * rxbd->length;
+ if (txcnt < txtimeo && (n = state->rx_idx) > 0) {
+
+ rxbd = ((I2C_BD*)state->rxbd) - n;
+ for (i = 0; i < n; i++) {
+ rxtimeo += TOUT_LOOP * rxbd->length;
+ rxbd++;
+ }
+
+ rxbd--; /* wait until last in list is done */
+
PRINTD(("[I2C] Receiving...(rxbd=0x%08lx)\n", (ulong)rxbd));
+
udelay(START_DELAY_US); /* give it time to start */
- while((rxbd->status & BD_SC_EMPTY) && (j++ < timeout)) {
+ while((rxbd->status & BD_SC_EMPTY) && (++rxcnt < rxtimeo)) {
udelay(DELAY_US);
if (ctrlc())
return (-1);
@@ -550,76 +563,91 @@
/* Turn off I2C */
i2c->i2c_i2mod &= ~0x01;
- if (state->err_cb != NULL) {
- int n, i, b;
-
- /*
- * if we have an error callback function, look at the
- * error bits in the bd status and pass them back
- */
-
- if ((n = state->tx_idx) > 0) {
- for (i = 0; i < n; i++) {
- txbd = ((I2C_BD*)state->txbd) - (n - i);
- if ((b = txbd->status & BD_I2C_TX_ERR) != 0)
- (*state->err_cb)(I2CECB_TX_ERR|b, i);
+ if ((n = state->tx_idx) > 0) {
+ for (i = 0; i < n; i++) {
+ txbd = ((I2C_BD*)state->txbd) - (n - i);
+ if ((b = txbd->status & BD_I2C_TX_ERR) != 0) {
+ if (state->err_cb != NULL)
+ (*state->err_cb)(I2CECB_TX_ERR|b, i,
+ state->cb_data);
+ if (rc == 0)
+ rc = I2CERR_IO_ERROR;
}
}
-
- if ((n = state->rx_idx) > 0) {
- for (i = 0; i < n; i++) {
- rxbd = ((I2C_BD*)state->rxbd) - (n - i);
- if ((b = rxbd->status & BD_I2C_RX_ERR) != 0)
- (*state->err_cb)(I2CECB_RX_ERR|b, i);
- }
- }
-
- if (j >= timeout)
- (*state->err_cb)(I2CECB_TIMEOUT, 0);
}
- /* sort out errors and return appropriate good/error status */
- if(j >= timeout)
- return(I2CERR_TIMEOUT);
- if((txbd->status & BD_I2C_TX_ERR) != 0)
- return(I2CECB_TX_ERR | (txbd->status & I2CECB_TX_MASK));
- if((rxbd->status & BD_I2C_RX_ERR) != 0)
- return(I2CECB_RX_ERR | (rxbd->status & I2CECB_RX_MASK));
+ if ((n = state->rx_idx) > 0) {
+ for (i = 0; i < n; i++) {
+ rxbd = ((I2C_BD*)state->rxbd) - (n - i);
+ if ((b = rxbd->status & BD_I2C_RX_ERR) != 0) {
+ if (state->err_cb != NULL)
+ (*state->err_cb)(I2CECB_RX_ERR|b, i,
+ state->cb_data);
+ if (rc == 0)
+ rc = I2CERR_IO_ERROR;
+ }
+ }
+ }
- return(0);
+ if ((txtimeo > 0 && txcnt >= txtimeo) || \
+ (rxtimeo > 0 && rxcnt >= rxtimeo)) {
+ if (state->err_cb != NULL)
+ (*state->err_cb)(I2CECB_TIMEOUT, -1, state->cb_data);
+ if (rc == 0)
+ rc = I2CERR_TIMEOUT;
+ }
+
+ return (rc);
}
-static int had_tx_nak;
-
static void
-i2c_test_callback(int flags, int xnum)
+i2c_probe_callback(int flags, int xnum, void *data)
{
- if ((flags & I2CECB_TX_ERR) && (flags & I2CECB_TX_NAK))
- had_tx_nak = 1;
+ /*
+ * the only acceptable errors are a transmit NAK or a receive
+ * overrun - tx NAK means the device does not exist, rx OV
+ * means the device must have responded to the slave address
+ * even though the transfer failed
+ */
+ if (flags == (I2CECB_TX_ERR|I2CECB_TX_NAK))
+ *(int *)data |= 1;
+ if (flags == (I2CECB_RX_ERR|I2CECB_RX_OV))
+ *(int *)data |= 2;
}
-int i2c_probe(uchar chip)
+int
+i2c_probe(uchar chip)
{
i2c_state_t state;
- int rc;
+ int rc, err_flag;
uchar buf[1];
i2c_newio(&state);
- state.err_cb = i2c_test_callback;
- had_tx_nak = 0;
+ state.err_cb = i2c_probe_callback;
+ state.cb_data = (void *) &err_flag;
+ err_flag = 0;
rc = i2c_receive(&state, chip, 0, I2CF_START_COND|I2CF_STOP_COND, 1, buf);
if (rc != 0)
- return (rc);
+ return (rc); /* probe failed */
rc = i2c_doio(&state);
- if ((rc != 0) && (rc != I2CERR_TIMEOUT))
- return (rc);
+ if (rc == 0)
+ return (0); /* device exists - read succeeded */
- return (had_tx_nak);
+ if (rc == I2CERR_TIMEOUT)
+ return (-1); /* device does not exist - timeout */
+
+ if (rc != I2CERR_IO_ERROR || err_flag == 0)
+ return (rc); /* probe failed */
+
+ if (err_flag & 1)
+ return (-1); /* device does not exist - had transmit NAK */
+
+ return (0); /* device exists - had receive overrun */
}
diff --git a/cpu/mpc8260/interrupts.c b/cpu/mpc8260/interrupts.c
index 9062084..3c5ef74 100644
--- a/cpu/mpc8260/interrupts.c
+++ b/cpu/mpc8260/interrupts.c
@@ -155,7 +155,7 @@
static __inline__ void set_msr (unsigned long msr)
{
- __asm__ __volatile__ ("mtmsr %0"::"r" (msr));
+ __asm__ __volatile__ ("mtmsr %0;sync;isync"::"r" (msr));
}
static __inline__ unsigned long get_dec (void)
@@ -208,6 +208,14 @@
immr->im_intctl.ic_sipnrh = 0xffffffff;
immr->im_intctl.ic_sipnrl = 0xffffffff;
+#ifdef CONFIG_HYMOD
+ /*
+ * ensure all external interrupt sources default to trigger on
+ * high-to-low transition (i.e. edge triggered active low)
+ */
+ immr->im_intctl.ic_siexr = -1;
+#endif
+
set_dec (decrementer_count);
set_msr (get_msr () | MSR_EE);