upstream u-boot with additional patches for our devices/boards:
https://lists.denx.de/pipermail/u-boot/2017-March/282789.html (AXP crashes) ;
Gbit ethernet patch for some LIME2 revisions ;
with SPI flash support
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572 lines
14 KiB
572 lines
14 KiB
/*
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* (C) Copyright 2002
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* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#include <common.h>
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/*
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* Ethernet test
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*
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* The Serial Communication Controllers (SCC) listed in ctlr_list array below
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* are tested in the loopback ethernet mode.
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* The controllers are configured accordingly and several packets
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* are transmitted. The configurable test parameters are:
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* MIN_PACKET_LENGTH - minimum size of packet to transmit
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* MAX_PACKET_LENGTH - maximum size of packet to transmit
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* TEST_NUM - number of tests
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*/
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#include <post.h>
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#if CONFIG_POST & CONFIG_SYS_POST_ETHER
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#if defined(CONFIG_8xx)
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#include <commproc.h>
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#elif defined(CONFIG_MPC8260)
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#include <asm/cpm_8260.h>
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#else
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#error "Apparently a bad configuration, please fix."
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#endif
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#include <command.h>
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#include <net.h>
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#include <serial.h>
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DECLARE_GLOBAL_DATA_PTR;
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#define MIN_PACKET_LENGTH 64
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#define MAX_PACKET_LENGTH 256
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#define TEST_NUM 1
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#define CTLR_SCC 0
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extern void spi_init_f (void);
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extern void spi_init_r (void);
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/* The list of controllers to test */
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#if defined(CONFIG_MPC823)
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static int ctlr_list[][2] = { {CTLR_SCC, 1} };
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#else
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static int ctlr_list[][2] = { };
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#endif
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static struct {
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void (*init) (int index);
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void (*halt) (int index);
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int (*send) (int index, volatile void *packet, int length);
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int (*recv) (int index, void *packet, int length);
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} ctlr_proc[1];
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static char *ctlr_name[1] = { "SCC" };
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/* Ethernet Transmit and Receive Buffers */
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#define DBUF_LENGTH 1520
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#define TX_BUF_CNT 2
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#define TOUT_LOOP 100
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static char txbuf[DBUF_LENGTH];
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static uint rxIdx; /* index of the current RX buffer */
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static uint txIdx; /* index of the current TX buffer */
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/*
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* SCC Ethernet Tx and Rx buffer descriptors allocated at the
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* immr->udata_bd address on Dual-Port RAM
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* Provide for Double Buffering
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*/
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typedef volatile struct CommonBufferDescriptor {
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cbd_t rxbd[PKTBUFSRX]; /* Rx BD */
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cbd_t txbd[TX_BUF_CNT]; /* Tx BD */
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} RTXBD;
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static RTXBD *rtx;
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/*
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* SCC callbacks
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*/
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static void scc_init (int scc_index)
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{
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uchar ea[6];
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static int proff[] = {
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PROFF_SCC1,
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PROFF_SCC2,
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PROFF_SCC3,
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PROFF_SCC4,
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};
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static unsigned int cpm_cr[] = {
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CPM_CR_CH_SCC1,
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CPM_CR_CH_SCC2,
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CPM_CR_CH_SCC3,
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CPM_CR_CH_SCC4,
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};
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int i;
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scc_enet_t *pram_ptr;
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volatile immap_t *immr = (immap_t *) CONFIG_SYS_IMMR;
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immr->im_cpm.cp_scc[scc_index].scc_gsmrl &=
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~(SCC_GSMRL_ENR | SCC_GSMRL_ENT);
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#if defined(CONFIG_FADS)
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#if defined(CONFIG_MPC860T) || defined(CONFIG_MPC86xADS)
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/* The FADS860T and MPC86xADS don't use the MODEM_EN or DATA_VOICE signals. */
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*((uint *) BCSR4) &= ~BCSR4_ETHLOOP;
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*((uint *) BCSR4) |= BCSR4_TFPLDL | BCSR4_TPSQEL;
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*((uint *) BCSR1) &= ~BCSR1_ETHEN;
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#else
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*((uint *) BCSR4) &= ~(BCSR4_ETHLOOP | BCSR4_MODEM_EN);
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*((uint *) BCSR4) |= BCSR4_TFPLDL | BCSR4_TPSQEL | BCSR4_DATA_VOICE;
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*((uint *) BCSR1) &= ~BCSR1_ETHEN;
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#endif
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#endif
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pram_ptr = (scc_enet_t *) & (immr->im_cpm.cp_dparam[proff[scc_index]]);
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rxIdx = 0;
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txIdx = 0;
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#ifdef CONFIG_SYS_ALLOC_DPRAM
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rtx = (RTXBD *) (immr->im_cpm.cp_dpmem +
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dpram_alloc_align (sizeof (RTXBD), 8));
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#else
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rtx = (RTXBD *) (immr->im_cpm.cp_dpmem + CPM_SCC_BASE);
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#endif
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#if 0
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#if (defined(PA_ENET_RXD) && defined(PA_ENET_TXD))
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/* Configure port A pins for Txd and Rxd.
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*/
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immr->im_ioport.iop_papar |= (PA_ENET_RXD | PA_ENET_TXD);
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immr->im_ioport.iop_padir &= ~(PA_ENET_RXD | PA_ENET_TXD);
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immr->im_ioport.iop_paodr &= ~PA_ENET_TXD;
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#elif (defined(PB_ENET_RXD) && defined(PB_ENET_TXD))
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/* Configure port B pins for Txd and Rxd.
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*/
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immr->im_cpm.cp_pbpar |= (PB_ENET_RXD | PB_ENET_TXD);
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immr->im_cpm.cp_pbdir &= ~(PB_ENET_RXD | PB_ENET_TXD);
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immr->im_cpm.cp_pbodr &= ~PB_ENET_TXD;
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#else
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#error Configuration Error: exactly ONE of PA_ENET_[RT]XD, PB_ENET_[RT]XD must be defined
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#endif
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#if defined(PC_ENET_LBK)
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/* Configure port C pins to disable External Loopback
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*/
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immr->im_ioport.iop_pcpar &= ~PC_ENET_LBK;
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immr->im_ioport.iop_pcdir |= PC_ENET_LBK;
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immr->im_ioport.iop_pcso &= ~PC_ENET_LBK;
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immr->im_ioport.iop_pcdat &= ~PC_ENET_LBK; /* Disable Loopback */
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#endif /* PC_ENET_LBK */
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/* Configure port C pins to enable CLSN and RENA.
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*/
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immr->im_ioport.iop_pcpar &= ~(PC_ENET_CLSN | PC_ENET_RENA);
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immr->im_ioport.iop_pcdir &= ~(PC_ENET_CLSN | PC_ENET_RENA);
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immr->im_ioport.iop_pcso |= (PC_ENET_CLSN | PC_ENET_RENA);
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/* Configure port A for TCLK and RCLK.
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*/
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immr->im_ioport.iop_papar |= (PA_ENET_TCLK | PA_ENET_RCLK);
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immr->im_ioport.iop_padir &= ~(PA_ENET_TCLK | PA_ENET_RCLK);
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/*
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* Configure Serial Interface clock routing -- see section 16.7.5.3
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* First, clear all SCC bits to zero, then set the ones we want.
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*/
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immr->im_cpm.cp_sicr &= ~SICR_ENET_MASK;
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immr->im_cpm.cp_sicr |= SICR_ENET_CLKRT;
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#else
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/*
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* SCC2 receive clock is BRG2
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* SCC2 transmit clock is BRG3
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*/
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immr->im_cpm.cp_brgc2 = 0x0001000C;
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immr->im_cpm.cp_brgc3 = 0x0001000C;
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immr->im_cpm.cp_sicr &= ~0x00003F00;
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immr->im_cpm.cp_sicr |= 0x00000a00;
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#endif /* 0 */
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/*
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* Initialize SDCR -- see section 16.9.23.7
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* SDMA configuration register
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*/
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immr->im_siu_conf.sc_sdcr = 0x01;
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/*
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* Setup SCC Ethernet Parameter RAM
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*/
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pram_ptr->sen_genscc.scc_rfcr = 0x18; /* Normal Operation and Mot byte ordering */
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pram_ptr->sen_genscc.scc_tfcr = 0x18; /* Mot byte ordering, Normal access */
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pram_ptr->sen_genscc.scc_mrblr = DBUF_LENGTH; /* max. ET package len 1520 */
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pram_ptr->sen_genscc.scc_rbase = (unsigned int) (&rtx->rxbd[0]); /* Set RXBD tbl start at Dual Port */
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pram_ptr->sen_genscc.scc_tbase = (unsigned int) (&rtx->txbd[0]); /* Set TXBD tbl start at Dual Port */
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/*
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* Setup Receiver Buffer Descriptors (13.14.24.18)
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* Settings:
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* Empty, Wrap
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*/
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for (i = 0; i < PKTBUFSRX; i++) {
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rtx->rxbd[i].cbd_sc = BD_ENET_RX_EMPTY;
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rtx->rxbd[i].cbd_datlen = 0; /* Reset */
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rtx->rxbd[i].cbd_bufaddr = (uint) NetRxPackets[i];
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}
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rtx->rxbd[PKTBUFSRX - 1].cbd_sc |= BD_ENET_RX_WRAP;
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/*
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* Setup Ethernet Transmitter Buffer Descriptors (13.14.24.19)
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* Settings:
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* Add PADs to Short FRAMES, Wrap, Last, Tx CRC
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*/
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for (i = 0; i < TX_BUF_CNT; i++) {
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rtx->txbd[i].cbd_sc =
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(BD_ENET_TX_PAD | BD_ENET_TX_LAST | BD_ENET_TX_TC);
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rtx->txbd[i].cbd_datlen = 0; /* Reset */
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rtx->txbd[i].cbd_bufaddr = (uint) (&txbuf[0]);
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}
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rtx->txbd[TX_BUF_CNT - 1].cbd_sc |= BD_ENET_TX_WRAP;
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/*
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* Enter Command: Initialize Rx Params for SCC
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*/
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do { /* Spin until ready to issue command */
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__asm__ ("eieio");
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} while (immr->im_cpm.cp_cpcr & CPM_CR_FLG);
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/* Issue command */
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immr->im_cpm.cp_cpcr =
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((CPM_CR_INIT_RX << 8) | (cpm_cr[scc_index] << 4) |
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CPM_CR_FLG);
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do { /* Spin until command processed */
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__asm__ ("eieio");
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} while (immr->im_cpm.cp_cpcr & CPM_CR_FLG);
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/*
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* Ethernet Specific Parameter RAM
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* see table 13-16, pg. 660,
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* pg. 681 (example with suggested settings)
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*/
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pram_ptr->sen_cpres = ~(0x0); /* Preset CRC */
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pram_ptr->sen_cmask = 0xdebb20e3; /* Constant Mask for CRC */
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pram_ptr->sen_crcec = 0x0; /* Error Counter CRC (unused) */
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pram_ptr->sen_alec = 0x0; /* Alignment Error Counter (unused) */
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pram_ptr->sen_disfc = 0x0; /* Discard Frame Counter (unused) */
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pram_ptr->sen_pads = 0x8888; /* Short Frame PAD Characters */
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pram_ptr->sen_retlim = 15; /* Retry Limit Threshold */
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pram_ptr->sen_maxflr = 1518; /* MAX Frame Length Register */
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pram_ptr->sen_minflr = 64; /* MIN Frame Length Register */
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pram_ptr->sen_maxd1 = DBUF_LENGTH; /* MAX DMA1 Length Register */
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pram_ptr->sen_maxd2 = DBUF_LENGTH; /* MAX DMA2 Length Register */
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pram_ptr->sen_gaddr1 = 0x0; /* Group Address Filter 1 (unused) */
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pram_ptr->sen_gaddr2 = 0x0; /* Group Address Filter 2 (unused) */
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pram_ptr->sen_gaddr3 = 0x0; /* Group Address Filter 3 (unused) */
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pram_ptr->sen_gaddr4 = 0x0; /* Group Address Filter 4 (unused) */
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eth_getenv_enetaddr("ethaddr", ea);
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pram_ptr->sen_paddrh = (ea[5] << 8) + ea[4];
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pram_ptr->sen_paddrm = (ea[3] << 8) + ea[2];
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pram_ptr->sen_paddrl = (ea[1] << 8) + ea[0];
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pram_ptr->sen_pper = 0x0; /* Persistence (unused) */
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pram_ptr->sen_iaddr1 = 0x0; /* Individual Address Filter 1 (unused) */
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pram_ptr->sen_iaddr2 = 0x0; /* Individual Address Filter 2 (unused) */
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pram_ptr->sen_iaddr3 = 0x0; /* Individual Address Filter 3 (unused) */
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pram_ptr->sen_iaddr4 = 0x0; /* Individual Address Filter 4 (unused) */
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pram_ptr->sen_taddrh = 0x0; /* Tmp Address (MSB) (unused) */
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pram_ptr->sen_taddrm = 0x0; /* Tmp Address (unused) */
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pram_ptr->sen_taddrl = 0x0; /* Tmp Address (LSB) (unused) */
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/*
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* Enter Command: Initialize Tx Params for SCC
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*/
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do { /* Spin until ready to issue command */
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__asm__ ("eieio");
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} while (immr->im_cpm.cp_cpcr & CPM_CR_FLG);
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/* Issue command */
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immr->im_cpm.cp_cpcr =
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((CPM_CR_INIT_TX << 8) | (cpm_cr[scc_index] << 4) |
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CPM_CR_FLG);
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do { /* Spin until command processed */
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__asm__ ("eieio");
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} while (immr->im_cpm.cp_cpcr & CPM_CR_FLG);
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/*
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* Mask all Events in SCCM - we use polling mode
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*/
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immr->im_cpm.cp_scc[scc_index].scc_sccm = 0;
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/*
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* Clear Events in SCCE -- Clear bits by writing 1's
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*/
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immr->im_cpm.cp_scc[scc_index].scc_scce = ~(0x0);
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/*
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* Initialize GSMR High 32-Bits
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* Settings: Normal Mode
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*/
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immr->im_cpm.cp_scc[scc_index].scc_gsmrh = 0;
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/*
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* Initialize GSMR Low 32-Bits, but do not Enable Transmit/Receive
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* Settings:
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* TCI = Invert
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* TPL = 48 bits
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* TPP = Repeating 10's
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* LOOP = Loopback
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* MODE = Ethernet
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*/
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immr->im_cpm.cp_scc[scc_index].scc_gsmrl = (SCC_GSMRL_TCI |
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SCC_GSMRL_TPL_48 |
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SCC_GSMRL_TPP_10 |
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SCC_GSMRL_DIAG_LOOP |
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SCC_GSMRL_MODE_ENET);
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/*
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* Initialize the DSR -- see section 13.14.4 (pg. 513) v0.4
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*/
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immr->im_cpm.cp_scc[scc_index].scc_dsr = 0xd555;
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/*
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* Initialize the PSMR
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* Settings:
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* CRC = 32-Bit CCITT
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* NIB = Begin searching for SFD 22 bits after RENA
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* LPB = Loopback Enable (Needed when FDE is set)
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*/
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immr->im_cpm.cp_scc[scc_index].scc_psmr = SCC_PSMR_ENCRC |
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SCC_PSMR_NIB22 | SCC_PSMR_LPB;
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#ifdef CONFIG_RPXCLASSIC
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*((uchar *) BCSR0) &= ~BCSR0_ETHLPBK;
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*((uchar *) BCSR0) |= (BCSR0_ETHEN | BCSR0_COLTEST | BCSR0_FULLDPLX);
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#endif
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#ifdef CONFIG_RPXLITE
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*((uchar *) BCSR0) |= BCSR0_ETHEN;
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#endif
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#ifdef CONFIG_MBX
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board_ether_init ();
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#endif
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/*
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* Set the ENT/ENR bits in the GSMR Low -- Enable Transmit/Receive
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*/
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immr->im_cpm.cp_scc[scc_index].scc_gsmrl |=
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(SCC_GSMRL_ENR | SCC_GSMRL_ENT);
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/*
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* Work around transmit problem with first eth packet
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*/
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#if defined (CONFIG_FADS)
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udelay (10000); /* wait 10 ms */
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#elif defined(CONFIG_RPXCLASSIC)
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udelay (100000); /* wait 100 ms */
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#endif
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}
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static void scc_halt (int scc_index)
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{
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volatile immap_t *immr = (immap_t *) CONFIG_SYS_IMMR;
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immr->im_cpm.cp_scc[scc_index].scc_gsmrl &=
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~(SCC_GSMRL_ENR | SCC_GSMRL_ENT);
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immr->im_ioport.iop_pcso &= ~(PC_ENET_CLSN | PC_ENET_RENA);
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}
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static int scc_send (int index, volatile void *packet, int length)
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{
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int i, j = 0;
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while ((rtx->txbd[txIdx].cbd_sc & BD_ENET_TX_READY) && (j < TOUT_LOOP)) {
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udelay (1); /* will also trigger Wd if needed */
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j++;
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}
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if (j >= TOUT_LOOP)
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printf ("TX not ready\n");
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rtx->txbd[txIdx].cbd_bufaddr = (uint) packet;
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rtx->txbd[txIdx].cbd_datlen = length;
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rtx->txbd[txIdx].cbd_sc |=
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(BD_ENET_TX_READY | BD_ENET_TX_LAST | BD_ENET_TX_WRAP);
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while ((rtx->txbd[txIdx].cbd_sc & BD_ENET_TX_READY) && (j < TOUT_LOOP)) {
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udelay (1); /* will also trigger Wd if needed */
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j++;
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}
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if (j >= TOUT_LOOP)
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printf ("TX timeout\n");
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i = (rtx->txbd[txIdx].
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cbd_sc & BD_ENET_TX_STATS) /* return only status bits */ ;
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return i;
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}
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static int scc_recv (int index, void *packet, int max_length)
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{
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int length = -1;
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if (rtx->rxbd[rxIdx].cbd_sc & BD_ENET_RX_EMPTY) {
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goto Done; /* nothing received */
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}
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if (!(rtx->rxbd[rxIdx].cbd_sc & 0x003f)) {
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length = rtx->rxbd[rxIdx].cbd_datlen - 4;
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memcpy (packet,
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(void *) (NetRxPackets[rxIdx]),
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length < max_length ? length : max_length);
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}
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/* Give the buffer back to the SCC. */
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rtx->rxbd[rxIdx].cbd_datlen = 0;
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/* wrap around buffer index when necessary */
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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++;
|
|
}
|
|
|
|
Done:
|
|
return length;
|
|
}
|
|
|
|
/*
|
|
* Test routines
|
|
*/
|
|
|
|
static void packet_fill (char *packet, int length)
|
|
{
|
|
char c = (char) length;
|
|
int i;
|
|
|
|
packet[0] = 0xFF;
|
|
packet[1] = 0xFF;
|
|
packet[2] = 0xFF;
|
|
packet[3] = 0xFF;
|
|
packet[4] = 0xFF;
|
|
packet[5] = 0xFF;
|
|
|
|
for (i = 6; i < length; i++) {
|
|
packet[i] = c++;
|
|
}
|
|
}
|
|
|
|
static int packet_check (char *packet, int length)
|
|
{
|
|
char c = (char) length;
|
|
int i;
|
|
|
|
for (i = 6; i < length; i++) {
|
|
if (packet[i] != c++)
|
|
return -1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int test_ctlr (int ctlr, int index)
|
|
{
|
|
int res = -1;
|
|
char packet_send[MAX_PACKET_LENGTH];
|
|
char packet_recv[MAX_PACKET_LENGTH];
|
|
int length;
|
|
int i;
|
|
int l;
|
|
|
|
ctlr_proc[ctlr].init (index);
|
|
|
|
for (i = 0; i < TEST_NUM; i++) {
|
|
for (l = MIN_PACKET_LENGTH; l <= MAX_PACKET_LENGTH; l++) {
|
|
packet_fill (packet_send, l);
|
|
|
|
ctlr_proc[ctlr].send (index, packet_send, l);
|
|
|
|
length = ctlr_proc[ctlr].recv (index, packet_recv,
|
|
MAX_PACKET_LENGTH);
|
|
|
|
if (length != l || packet_check (packet_recv, length) < 0) {
|
|
goto Done;
|
|
}
|
|
}
|
|
}
|
|
|
|
res = 0;
|
|
|
|
Done:
|
|
|
|
ctlr_proc[ctlr].halt (index);
|
|
|
|
/*
|
|
* SCC2 Ethernet parameter RAM space overlaps
|
|
* the SPI parameter RAM space. So we need to restore
|
|
* the SPI configuration after SCC2 ethernet test.
|
|
*/
|
|
#if defined(CONFIG_SPI)
|
|
if (ctlr == CTLR_SCC && index == 1) {
|
|
spi_init_f ();
|
|
spi_init_r ();
|
|
}
|
|
#endif
|
|
|
|
if (res != 0) {
|
|
post_log ("ethernet %s%d test failed\n", ctlr_name[ctlr],
|
|
index + 1);
|
|
}
|
|
|
|
return res;
|
|
}
|
|
|
|
int ether_post_test (int flags)
|
|
{
|
|
int res = 0;
|
|
int i;
|
|
|
|
ctlr_proc[CTLR_SCC].init = scc_init;
|
|
ctlr_proc[CTLR_SCC].halt = scc_halt;
|
|
ctlr_proc[CTLR_SCC].send = scc_send;
|
|
ctlr_proc[CTLR_SCC].recv = scc_recv;
|
|
|
|
for (i = 0; i < ARRAY_SIZE(ctlr_list); i++) {
|
|
if (test_ctlr (ctlr_list[i][0], ctlr_list[i][1]) != 0) {
|
|
res = -1;
|
|
}
|
|
}
|
|
|
|
#if !defined(CONFIG_8xx_CONS_NONE)
|
|
serial_reinit_all ();
|
|
#endif
|
|
return res;
|
|
}
|
|
|
|
#endif /* CONFIG_POST & CONFIG_SYS_POST_ETHER */
|
|
|