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Diffstat (limited to 'arch/powerpc/cpu/mpc8260/ether_scc.c')
-rw-r--r--arch/powerpc/cpu/mpc8260/ether_scc.c367
1 files changed, 0 insertions, 367 deletions
diff --git a/arch/powerpc/cpu/mpc8260/ether_scc.c b/arch/powerpc/cpu/mpc8260/ether_scc.c
deleted file mode 100644
index fff8f2b8d3..0000000000
--- a/arch/powerpc/cpu/mpc8260/ether_scc.c
+++ /dev/null
@@ -1,367 +0,0 @@
-/*
- * MPC8260 SCC 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>
- *
- * (C) Copyright (c) 2001
- * Advent Networks, Inc. <http://www.adventnetworks.com>
- * Jay Monkman <jtm@smoothsmoothie.com>
- *
- * Modified so that it plays nicely when more than one ETHERNET interface
- * is in use a la ether_fcc.c.
- * (C) Copyright 2008
- * DENX Software Engineerin GmbH
- * Gary Jennejohn <garyj@denx.de>
- *
- * SPDX-License-Identifier: GPL-2.0+
- */
-
-#include <common.h>
-#include <asm/cpm_8260.h>
-#include <mpc8260.h>
-#include <malloc.h>
-#include <net.h>
-#include <command.h>
-#include <config.h>
-
-#if (CONFIG_ETHER_INDEX == 1)
-# define PROFF_ENET PROFF_SCC1
-# define CPM_CR_ENET_PAGE CPM_CR_SCC1_PAGE
-# define CPM_CR_ENET_SBLOCK CPM_CR_SCC1_SBLOCK
-# define CMXSCR_MASK (CMXSCR_SC1 |\
- CMXSCR_RS1CS_MSK |\
- CMXSCR_TS1CS_MSK)
-
-#elif (CONFIG_ETHER_INDEX == 2)
-# define PROFF_ENET PROFF_SCC2
-# define CPM_CR_ENET_PAGE CPM_CR_SCC2_PAGE
-# define CPM_CR_ENET_SBLOCK CPM_CR_SCC2_SBLOCK
-# define CMXSCR_MASK (CMXSCR_SC2 |\
- CMXSCR_RS2CS_MSK |\
- CMXSCR_TS2CS_MSK)
-
-#elif (CONFIG_ETHER_INDEX == 3)
-# define PROFF_ENET PROFF_SCC3
-# define CPM_CR_ENET_PAGE CPM_CR_SCC3_PAGE
-# define CPM_CR_ENET_SBLOCK CPM_CR_SCC3_SBLOCK
-# define CMXSCR_MASK (CMXSCR_SC3 |\
- CMXSCR_RS3CS_MSK |\
- CMXSCR_TS3CS_MSK)
-#elif (CONFIG_ETHER_INDEX == 4)
-# define PROFF_ENET PROFF_SCC4
-# define CPM_CR_ENET_PAGE CPM_CR_SCC4_PAGE
-# define CPM_CR_ENET_SBLOCK CPM_CR_SCC4_SBLOCK
-# define CMXSCR_MASK (CMXSCR_SC4 |\
- CMXSCR_RS4CS_MSK |\
- CMXSCR_TS4CS_MSK)
-
-#endif
-
-
-/* Ethernet Transmit and Receive Buffers */
-#define DBUF_LENGTH 1520
-
-#define TX_BUF_CNT 2
-
-#if !defined(CONFIG_SYS_SCC_TOUT_LOOP)
- #define CONFIG_SYS_SCC_TOUT_LOOP 1000000
-#endif
-
-static char txbuf[TX_BUF_CNT][ DBUF_LENGTH ];
-
-static uint rxIdx; /* index of the current RX buffer */
-static uint txIdx; /* index of the current TX buffer */
-
-/*
- * SCC Ethernet Tx and Rx buffer descriptors allocated at the
- * immr->udata_bd address on Dual-Port RAM
- * Provide for Double Buffering
- */
-
-typedef volatile struct CommonBufferDescriptor {
- cbd_t rxbd[PKTBUFSRX]; /* Rx BD */
- cbd_t txbd[TX_BUF_CNT]; /* Tx BD */
-} RTXBD;
-
-static RTXBD *rtx;
-
-
-static int sec_send(struct eth_device *dev, void *packet, int length)
-{
- int i;
- int result = 0;
-
- if (length <= 0) {
- printf("scc: bad packet size: %d\n", length);
- goto out;
- }
-
- for(i=0; rtx->txbd[txIdx].cbd_sc & BD_ENET_TX_READY; i++) {
- if (i >= CONFIG_SYS_SCC_TOUT_LOOP) {
- puts ("scc: 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 >= CONFIG_SYS_SCC_TOUT_LOOP) {
- puts ("scc: tx error\n");
- goto out;
- }
- }
-
- /* return only status bits */
- result = rtx->txbd[txIdx].cbd_sc & BD_ENET_TX_STATS;
-
- out:
- return result;
-}
-
-
-static int sec_rx(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("err: %x\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 SCC. */
- 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;
-}
-
-/**************************************************************
- *
- * SCC Ethernet Initialization Routine
- *
- *************************************************************/
-
-static int sec_init(struct eth_device *dev, bd_t *bis)
-{
- int i;
- volatile immap_t *immr = (immap_t *)CONFIG_SYS_IMMR;
- scc_enet_t *pram_ptr;
- uint dpaddr;
- uchar ea[6];
-
- rxIdx = 0;
- txIdx = 0;
-
- /*
- * Assign static pointer to BD area.
- * Avoid exhausting DPRAM, which would cause a panic.
- */
- if (rtx == NULL) {
- dpaddr = m8260_cpm_dpalloc(sizeof(RTXBD) + 2, 16);
- rtx = (RTXBD *)&immr->im_dprambase[dpaddr];
- }
-
- /* 24.21 - (1-3): ioports have been set up already */
-
- /* 24.21 - (4,5): connect SCC's tx and rx clocks, use NMSI for SCC */
- immr->im_cpmux.cmx_uar = 0;
- immr->im_cpmux.cmx_scr = ( (immr->im_cpmux.cmx_scr & ~CMXSCR_MASK) |
- CONFIG_SYS_CMXSCR_VALUE);
-
-
- /* 24.21 (6) write RBASE and TBASE to parameter RAM */
- pram_ptr = (scc_enet_t *)&(immr->im_dprambase[PROFF_ENET]);
- pram_ptr->sen_genscc.scc_rbase = (unsigned int)(&rtx->rxbd[0]);
- pram_ptr->sen_genscc.scc_tbase = (unsigned int)(&rtx->txbd[0]);
-
- pram_ptr->sen_genscc.scc_rfcr = 0x18; /* Nrml Ops and Mot byte ordering */
- pram_ptr->sen_genscc.scc_tfcr = 0x18; /* Mot byte ordering, Nrml access */
-
- pram_ptr->sen_genscc.scc_mrblr = DBUF_LENGTH; /* max. package len 1520 */
-
- pram_ptr->sen_cpres = ~(0x0); /* Preset CRC */
- pram_ptr->sen_cmask = 0xdebb20e3; /* Constant Mask for CRC */
-
-
- /* 24.21 - (7): Write INIT RX AND TX PARAMETERS to CPCR */
- while(immr->im_cpm.cp_cpcr & CPM_CR_FLG);
- immr->im_cpm.cp_cpcr = mk_cr_cmd(CPM_CR_ENET_PAGE,
- CPM_CR_ENET_SBLOCK,
- 0x0c,
- CPM_CR_INIT_TRX) | CPM_CR_FLG;
-
- /* 24.21 - (8-18): Set up parameter RAM */
- pram_ptr->sen_crcec = 0x0; /* Error Counter CRC (unused) */
- pram_ptr->sen_alec = 0x0; /* Align Error Counter (unused) */
- pram_ptr->sen_disfc = 0x0; /* Discard Frame Counter (unused) */
-
- pram_ptr->sen_pads = 0x8888; /* Short Frame PAD Characters */
-
- pram_ptr->sen_retlim = 15; /* Retry Limit Threshold */
-
- pram_ptr->sen_maxflr = 1518; /* MAX Frame Length Register */
- pram_ptr->sen_minflr = 64; /* MIN Frame Length Register */
-
- pram_ptr->sen_maxd1 = DBUF_LENGTH; /* MAX DMA1 Length Register */
- pram_ptr->sen_maxd2 = DBUF_LENGTH; /* MAX DMA2 Length Register */
-
- pram_ptr->sen_gaddr1 = 0x0; /* Group Address Filter 1 (unused) */
- pram_ptr->sen_gaddr2 = 0x0; /* Group Address Filter 2 (unused) */
- pram_ptr->sen_gaddr3 = 0x0; /* Group Address Filter 3 (unused) */
- pram_ptr->sen_gaddr4 = 0x0; /* Group Address Filter 4 (unused) */
-
- eth_getenv_enetaddr("ethaddr", ea);
- pram_ptr->sen_paddrh = (ea[5] << 8) + ea[4];
- pram_ptr->sen_paddrm = (ea[3] << 8) + ea[2];
- pram_ptr->sen_paddrl = (ea[1] << 8) + ea[0];
-
- pram_ptr->sen_pper = 0x0; /* Persistence (unused) */
-
- pram_ptr->sen_iaddr1 = 0x0; /* Individual Address Filter 1 (unused) */
- pram_ptr->sen_iaddr2 = 0x0; /* Individual Address Filter 2 (unused) */
- pram_ptr->sen_iaddr3 = 0x0; /* Individual Address Filter 3 (unused) */
- pram_ptr->sen_iaddr4 = 0x0; /* Individual Address Filter 4 (unused) */
-
- pram_ptr->sen_taddrh = 0x0; /* Tmp Address (MSB) (unused) */
- pram_ptr->sen_taddrm = 0x0; /* Tmp Address (unused) */
- pram_ptr->sen_taddrl = 0x0; /* Tmp Address (LSB) (unused) */
-
- /* 24.21 - (19): Initialize RxBD */
- for (i = 0; i < PKTBUFSRX; i++)
- {
- rtx->rxbd[i].cbd_sc = BD_ENET_RX_EMPTY;
- rtx->rxbd[i].cbd_datlen = 0; /* Reset */
- rtx->rxbd[i].cbd_bufaddr = (uint)net_rx_packets[i];
- }
-
- rtx->rxbd[PKTBUFSRX - 1].cbd_sc |= BD_ENET_RX_WRAP;
-
- /* 24.21 - (20): Initialize TxBD */
- 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; /* Reset */
- rtx->txbd[i].cbd_bufaddr = (uint)&txbuf[i][0];
- }
-
- rtx->txbd[TX_BUF_CNT - 1].cbd_sc |= BD_ENET_TX_WRAP;
-
- /* 24.21 - (21): Write 0xffff to SCCE */
- immr->im_scc[CONFIG_ETHER_INDEX-1].scc_scce = ~(0x0);
-
- /* 24.21 - (22): Write to SCCM to enable TXE, RXF, TXB events */
- immr->im_scc[CONFIG_ETHER_INDEX-1].scc_sccm = (SCCE_ENET_TXE |
- SCCE_ENET_RXF |
- SCCE_ENET_TXB);
-
- /* 24.21 - (23): we don't use ethernet interrupts */
-
- /* 24.21 - (24): Clear GSMR_H to enable normal operations */
- immr->im_scc[CONFIG_ETHER_INDEX-1].scc_gsmrh = 0;
-
- /* 24.21 - (25): Clear GSMR_L to enable normal operations */
- immr->im_scc[CONFIG_ETHER_INDEX-1].scc_gsmrl = (SCC_GSMRL_TCI |
- SCC_GSMRL_TPL_48 |
- SCC_GSMRL_TPP_10 |
- SCC_GSMRL_MODE_ENET);
-
- /* 24.21 - (26): Initialize DSR */
- immr->im_scc[CONFIG_ETHER_INDEX-1].scc_dsr = 0xd555;
-
- /* 24.21 - (27): Initialize PSMR2
- *
- * Settings:
- * CRC = 32-Bit CCITT
- * NIB = Begin searching for SFD 22 bits after RENA
- * FDE = Full Duplex Enable
- * BRO = Reject broadcast packets
- * PROMISCOUS = Catch all packets regardless of dest. MAC adress
- */
- immr->im_scc[CONFIG_ETHER_INDEX-1].scc_psmr = SCC_PSMR_ENCRC |
- SCC_PSMR_NIB22 |
-#if defined(CONFIG_SCC_ENET_FULL_DUPLEX)
- SCC_PSMR_FDE |
-#endif
-#if defined(CONFIG_SCC_ENET_NO_BROADCAST)
- SCC_PSMR_BRO |
-#endif
-#if defined(CONFIG_SCC_ENET_PROMISCOUS)
- SCC_PSMR_PRO |
-#endif
- 0;
-
- /* 24.21 - (28): Write to GSMR_L to enable SCC */
- immr->im_scc[CONFIG_ETHER_INDEX-1].scc_gsmrl |= (SCC_GSMRL_ENR |
- SCC_GSMRL_ENT);
-
- return 0;
-}
-
-
-static void sec_halt(struct eth_device *dev)
-{
- volatile immap_t *immr = (immap_t *)CONFIG_SYS_IMMR;
- immr->im_scc[CONFIG_ETHER_INDEX-1].scc_gsmrl &= ~(SCC_GSMRL_ENR |
- SCC_GSMRL_ENT);
-}
-
-#if 0
-static void sec_restart(void)
-{
- volatile immap_t *immr = (immap_t *)CONFIG_SYS_IMMR;
- immr->im_cpm.cp_scc[CONFIG_ETHER_INDEX-1].scc_gsmrl |= (SCC_GSMRL_ENR |
- SCC_GSMRL_ENT);
-}
-#endif
-
-int mpc82xx_scc_enet_initialize(bd_t *bis)
-{
- struct eth_device *dev;
-
- dev = (struct eth_device *) malloc(sizeof *dev);
- memset(dev, 0, sizeof *dev);
-
- strcpy(dev->name, "SCC");
- dev->init = sec_init;
- dev->halt = sec_halt;
- dev->send = sec_send;
- dev->recv = sec_rx;
-
- eth_register(dev);
-
- return 1;
-}
generated by cgit (git 2.34.1) at 2024-12-28 21:10:09 +0000