148257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou/* 248257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou * FCC driver for Motorola MPC82xx (PQ2). 348257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou * 49b8ee8e7d6b7f2270b19b3425a393d918fe497d3Vitaly Bordug * Copyright (c) 2003 Intracom S.A. 548257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou * by Pantelis Antoniou <panto@intracom.gr> 648257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou * 79b8ee8e7d6b7f2270b19b3425a393d918fe497d3Vitaly Bordug * 2005 (c) MontaVista Software, Inc. 848257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou * Vitaly Bordug <vbordug@ru.mvista.com> 948257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou * 109b8ee8e7d6b7f2270b19b3425a393d918fe497d3Vitaly Bordug * This file is licensed under the terms of the GNU General Public License 119b8ee8e7d6b7f2270b19b3425a393d918fe497d3Vitaly Bordug * version 2. This program is licensed "as is" without any warranty of any 1248257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou * kind, whether express or implied. 1348257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou */ 1448257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou 1548257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou#include <linux/module.h> 1648257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou#include <linux/kernel.h> 1748257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou#include <linux/types.h> 1848257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou#include <linux/string.h> 1948257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou#include <linux/ptrace.h> 2048257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou#include <linux/errno.h> 2148257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou#include <linux/ioport.h> 2248257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou#include <linux/interrupt.h> 2348257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou#include <linux/init.h> 2448257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou#include <linux/delay.h> 2548257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou#include <linux/netdevice.h> 2648257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou#include <linux/etherdevice.h> 2748257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou#include <linux/skbuff.h> 2848257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou#include <linux/spinlock.h> 2948257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou#include <linux/mii.h> 3048257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou#include <linux/ethtool.h> 3148257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou#include <linux/bitops.h> 3248257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou#include <linux/fs.h> 33f7b9996990bccaa9f53cbea7aea8ab5355e7f10cMarcelo Tosatti#include <linux/platform_device.h> 345b4b8454344a0391bb0f69fda0f4ec8e1f0d2fedVitaly Bordug#include <linux/phy.h> 35b219108cbacee5f2eaeca63cba013688eeba3bd4Kumar Gala#include <linux/of_device.h> 365a0e3ad6af8660be21ca98a971cd00f331318c05Tejun Heo#include <linux/gfp.h> 3748257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou 3848257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou#include <asm/immap_cpm2.h> 3948257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou#include <asm/mpc8260.h> 4048257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou#include <asm/cpm2.h> 4148257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou 4248257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou#include <asm/pgtable.h> 4348257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou#include <asm/irq.h> 4448257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou#include <asm/uaccess.h> 4548257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou 4648257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou#include "fs_enet.h" 4748257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou 4848257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou/*************************************************/ 4948257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou 5048257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou/* FCC access macros */ 5148257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou 5248257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou/* write, read, set bits, clear bits */ 53c6565331b7162a8348c70c37b4c33bedb6d4f02dScott Wood#define W32(_p, _m, _v) out_be32(&(_p)->_m, (_v)) 54c6565331b7162a8348c70c37b4c33bedb6d4f02dScott Wood#define R32(_p, _m) in_be32(&(_p)->_m) 5548257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou#define S32(_p, _m, _v) W32(_p, _m, R32(_p, _m) | (_v)) 5648257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou#define C32(_p, _m, _v) W32(_p, _m, R32(_p, _m) & ~(_v)) 5748257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou 58c6565331b7162a8348c70c37b4c33bedb6d4f02dScott Wood#define W16(_p, _m, _v) out_be16(&(_p)->_m, (_v)) 59c6565331b7162a8348c70c37b4c33bedb6d4f02dScott Wood#define R16(_p, _m) in_be16(&(_p)->_m) 6048257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou#define S16(_p, _m, _v) W16(_p, _m, R16(_p, _m) | (_v)) 6148257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou#define C16(_p, _m, _v) W16(_p, _m, R16(_p, _m) & ~(_v)) 6248257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou 63c6565331b7162a8348c70c37b4c33bedb6d4f02dScott Wood#define W8(_p, _m, _v) out_8(&(_p)->_m, (_v)) 64c6565331b7162a8348c70c37b4c33bedb6d4f02dScott Wood#define R8(_p, _m) in_8(&(_p)->_m) 6548257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou#define S8(_p, _m, _v) W8(_p, _m, R8(_p, _m) | (_v)) 6648257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou#define C8(_p, _m, _v) W8(_p, _m, R8(_p, _m) & ~(_v)) 6748257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou 6848257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou/*************************************************/ 6948257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou 7048257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou#define FCC_MAX_MULTICAST_ADDRS 64 7148257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou 7248257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou#define mk_mii_read(REG) (0x60020000 | ((REG & 0x1f) << 18)) 7348257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou#define mk_mii_write(REG, VAL) (0x50020000 | ((REG & 0x1f) << 18) | (VAL & 0xffff)) 7448257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou#define mk_mii_end 0 7548257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou 7648257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou#define MAX_CR_CMD_LOOPS 10000 7748257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou 78976de6a8c304dcc43e38efcb8a0bace7866b6242Scott Woodstatic inline int fcc_cr_cmd(struct fs_enet_private *fep, u32 op) 7948257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou{ 8048257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou const struct fs_platform_info *fpi = fep->fpi; 8148257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou 82362f9b6fa8c9670cc5496390845021c2865d049bJochen Friedrich return cpm_command(fpi->cp_command, op); 8348257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou} 8448257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou 8548257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antonioustatic int do_pd_setup(struct fs_enet_private *fep) 8648257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou{ 872dc11581376829303b98eadb2de253bee065a56aGrant Likely struct platform_device *ofdev = to_platform_device(fep->dev); 88976de6a8c304dcc43e38efcb8a0bace7866b6242Scott Wood struct fs_platform_info *fpi = fep->fpi; 89976de6a8c304dcc43e38efcb8a0bace7866b6242Scott Wood int ret = -EINVAL; 90976de6a8c304dcc43e38efcb8a0bace7866b6242Scott Wood 9161c7a080a5a061c976988fd4b844dfb468dda255Grant Likely fep->interrupt = of_irq_to_resource(ofdev->dev.of_node, 0, NULL); 92976de6a8c304dcc43e38efcb8a0bace7866b6242Scott Wood if (fep->interrupt == NO_IRQ) 93976de6a8c304dcc43e38efcb8a0bace7866b6242Scott Wood goto out; 94976de6a8c304dcc43e38efcb8a0bace7866b6242Scott Wood 9561c7a080a5a061c976988fd4b844dfb468dda255Grant Likely fep->fcc.fccp = of_iomap(ofdev->dev.of_node, 0); 96976de6a8c304dcc43e38efcb8a0bace7866b6242Scott Wood if (!fep->fcc.fccp) 97976de6a8c304dcc43e38efcb8a0bace7866b6242Scott Wood goto out; 98976de6a8c304dcc43e38efcb8a0bace7866b6242Scott Wood 9961c7a080a5a061c976988fd4b844dfb468dda255Grant Likely fep->fcc.ep = of_iomap(ofdev->dev.of_node, 1); 100976de6a8c304dcc43e38efcb8a0bace7866b6242Scott Wood if (!fep->fcc.ep) 101976de6a8c304dcc43e38efcb8a0bace7866b6242Scott Wood goto out_fccp; 102976de6a8c304dcc43e38efcb8a0bace7866b6242Scott Wood 10361c7a080a5a061c976988fd4b844dfb468dda255Grant Likely fep->fcc.fcccp = of_iomap(ofdev->dev.of_node, 2); 104976de6a8c304dcc43e38efcb8a0bace7866b6242Scott Wood if (!fep->fcc.fcccp) 105976de6a8c304dcc43e38efcb8a0bace7866b6242Scott Wood goto out_ep; 106976de6a8c304dcc43e38efcb8a0bace7866b6242Scott Wood 10731a5bb04d59931eb4657826213a439d37d12d4a9Scott Wood fep->fcc.mem = (void __iomem *)cpm2_immr; 108cab758ef30e0e40f783627abc4b66d1b48fecd49Clive Stubbings fpi->dpram_offset = cpm_dpalloc(128, 32); 109976de6a8c304dcc43e38efcb8a0bace7866b6242Scott Wood if (IS_ERR_VALUE(fpi->dpram_offset)) { 110976de6a8c304dcc43e38efcb8a0bace7866b6242Scott Wood ret = fpi->dpram_offset; 111976de6a8c304dcc43e38efcb8a0bace7866b6242Scott Wood goto out_fcccp; 112976de6a8c304dcc43e38efcb8a0bace7866b6242Scott Wood } 113976de6a8c304dcc43e38efcb8a0bace7866b6242Scott Wood 114976de6a8c304dcc43e38efcb8a0bace7866b6242Scott Wood return 0; 115976de6a8c304dcc43e38efcb8a0bace7866b6242Scott Wood 116976de6a8c304dcc43e38efcb8a0bace7866b6242Scott Woodout_fcccp: 117976de6a8c304dcc43e38efcb8a0bace7866b6242Scott Wood iounmap(fep->fcc.fcccp); 118976de6a8c304dcc43e38efcb8a0bace7866b6242Scott Woodout_ep: 119976de6a8c304dcc43e38efcb8a0bace7866b6242Scott Wood iounmap(fep->fcc.ep); 120976de6a8c304dcc43e38efcb8a0bace7866b6242Scott Woodout_fccp: 121976de6a8c304dcc43e38efcb8a0bace7866b6242Scott Wood iounmap(fep->fcc.fccp); 122976de6a8c304dcc43e38efcb8a0bace7866b6242Scott Woodout: 123976de6a8c304dcc43e38efcb8a0bace7866b6242Scott Wood return ret; 12448257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou} 12548257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou 12648257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou#define FCC_NAPI_RX_EVENT_MSK (FCC_ENET_RXF | FCC_ENET_RXB) 12748257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou#define FCC_RX_EVENT (FCC_ENET_RXF) 12848257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou#define FCC_TX_EVENT (FCC_ENET_TXB) 1295b1c29b4365d2eaf05eb81899cb1ca847dfe026eLi Yang#define FCC_ERR_EVENT_MSK (FCC_ENET_TXE) 13048257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou 13148257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antonioustatic int setup_data(struct net_device *dev) 13248257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou{ 13348257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou struct fs_enet_private *fep = netdev_priv(dev); 13448257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou 13548257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou if (do_pd_setup(fep) != 0) 13648257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou return -EINVAL; 13748257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou 13848257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou fep->ev_napi_rx = FCC_NAPI_RX_EVENT_MSK; 13948257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou fep->ev_rx = FCC_RX_EVENT; 14048257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou fep->ev_tx = FCC_TX_EVENT; 14148257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou fep->ev_err = FCC_ERR_EVENT_MSK; 14248257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou 14348257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou return 0; 14448257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou} 14548257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou 14648257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antonioustatic int allocate_bd(struct net_device *dev) 14748257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou{ 14848257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou struct fs_enet_private *fep = netdev_priv(dev); 14948257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou const struct fs_platform_info *fpi = fep->fpi; 15048257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou 15131a5bb04d59931eb4657826213a439d37d12d4a9Scott Wood fep->ring_base = (void __iomem __force *)dma_alloc_coherent(fep->dev, 15248257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou (fpi->tx_ring + fpi->rx_ring) * 15348257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou sizeof(cbd_t), &fep->ring_mem_addr, 15448257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou GFP_KERNEL); 15548257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou if (fep->ring_base == NULL) 15648257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou return -ENOMEM; 15748257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou 15848257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou return 0; 15948257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou} 16048257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou 16148257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antonioustatic void free_bd(struct net_device *dev) 16248257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou{ 16348257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou struct fs_enet_private *fep = netdev_priv(dev); 16448257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou const struct fs_platform_info *fpi = fep->fpi; 16548257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou 16648257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou if (fep->ring_base) 16748257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou dma_free_coherent(fep->dev, 16848257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou (fpi->tx_ring + fpi->rx_ring) * sizeof(cbd_t), 16931a5bb04d59931eb4657826213a439d37d12d4a9Scott Wood (void __force *)fep->ring_base, fep->ring_mem_addr); 17048257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou} 17148257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou 17248257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antonioustatic void cleanup_data(struct net_device *dev) 17348257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou{ 17448257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou /* nothing */ 17548257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou} 17648257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou 17748257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antonioustatic void set_promiscuous_mode(struct net_device *dev) 17848257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou{ 17948257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou struct fs_enet_private *fep = netdev_priv(dev); 18031a5bb04d59931eb4657826213a439d37d12d4a9Scott Wood fcc_t __iomem *fccp = fep->fcc.fccp; 18148257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou 18248257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou S32(fccp, fcc_fpsmr, FCC_PSMR_PRO); 18348257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou} 18448257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou 18548257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antonioustatic void set_multicast_start(struct net_device *dev) 18648257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou{ 18748257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou struct fs_enet_private *fep = netdev_priv(dev); 18831a5bb04d59931eb4657826213a439d37d12d4a9Scott Wood fcc_enet_t __iomem *ep = fep->fcc.ep; 18948257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou 19048257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou W32(ep, fen_gaddrh, 0); 19148257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou W32(ep, fen_gaddrl, 0); 19248257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou} 19348257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou 19448257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antonioustatic void set_multicast_one(struct net_device *dev, const u8 *mac) 19548257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou{ 19648257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou struct fs_enet_private *fep = netdev_priv(dev); 19731a5bb04d59931eb4657826213a439d37d12d4a9Scott Wood fcc_enet_t __iomem *ep = fep->fcc.ep; 19848257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou u16 taddrh, taddrm, taddrl; 19948257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou 20048257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou taddrh = ((u16)mac[5] << 8) | mac[4]; 20148257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou taddrm = ((u16)mac[3] << 8) | mac[2]; 20248257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou taddrl = ((u16)mac[1] << 8) | mac[0]; 20348257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou 20448257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou W16(ep, fen_taddrh, taddrh); 20548257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou W16(ep, fen_taddrm, taddrm); 20648257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou W16(ep, fen_taddrl, taddrl); 207976de6a8c304dcc43e38efcb8a0bace7866b6242Scott Wood fcc_cr_cmd(fep, CPM_CR_SET_GADDR); 20848257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou} 20948257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou 21048257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antonioustatic void set_multicast_finish(struct net_device *dev) 21148257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou{ 21248257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou struct fs_enet_private *fep = netdev_priv(dev); 21331a5bb04d59931eb4657826213a439d37d12d4a9Scott Wood fcc_t __iomem *fccp = fep->fcc.fccp; 21431a5bb04d59931eb4657826213a439d37d12d4a9Scott Wood fcc_enet_t __iomem *ep = fep->fcc.ep; 21548257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou 21648257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou /* clear promiscuous always */ 21748257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou C32(fccp, fcc_fpsmr, FCC_PSMR_PRO); 21848257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou 21948257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou /* if all multi or too many multicasts; just enable all */ 22048257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou if ((dev->flags & IFF_ALLMULTI) != 0 || 2214cd24eaf0c6ee7f0242e34ee77ec899f255e66b5Jiri Pirko netdev_mc_count(dev) > FCC_MAX_MULTICAST_ADDRS) { 22248257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou 22348257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou W32(ep, fen_gaddrh, 0xffffffff); 22448257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou W32(ep, fen_gaddrl, 0xffffffff); 22548257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou } 22648257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou 22748257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou /* read back */ 22848257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou fep->fcc.gaddrh = R32(ep, fen_gaddrh); 22948257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou fep->fcc.gaddrl = R32(ep, fen_gaddrl); 23048257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou} 23148257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou 23248257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antonioustatic void set_multicast_list(struct net_device *dev) 23348257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou{ 23422bedad3ce112d5ca1eaf043d4990fa2ed698c87Jiri Pirko struct netdev_hw_addr *ha; 23548257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou 23648257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou if ((dev->flags & IFF_PROMISC) == 0) { 23748257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou set_multicast_start(dev); 23822bedad3ce112d5ca1eaf043d4990fa2ed698c87Jiri Pirko netdev_for_each_mc_addr(ha, dev) 23922bedad3ce112d5ca1eaf043d4990fa2ed698c87Jiri Pirko set_multicast_one(dev, ha->addr); 24048257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou set_multicast_finish(dev); 24148257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou } else 24248257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou set_promiscuous_mode(dev); 24348257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou} 24448257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou 24548257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antonioustatic void restart(struct net_device *dev) 24648257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou{ 24748257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou struct fs_enet_private *fep = netdev_priv(dev); 24848257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou const struct fs_platform_info *fpi = fep->fpi; 24931a5bb04d59931eb4657826213a439d37d12d4a9Scott Wood fcc_t __iomem *fccp = fep->fcc.fccp; 25031a5bb04d59931eb4657826213a439d37d12d4a9Scott Wood fcc_c_t __iomem *fcccp = fep->fcc.fcccp; 25131a5bb04d59931eb4657826213a439d37d12d4a9Scott Wood fcc_enet_t __iomem *ep = fep->fcc.ep; 25248257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou dma_addr_t rx_bd_base_phys, tx_bd_base_phys; 25348257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou u16 paddrh, paddrm, paddrl; 25448257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou const unsigned char *mac; 25548257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou int i; 25648257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou 25748257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou C32(fccp, fcc_gfmr, FCC_GFMR_ENR | FCC_GFMR_ENT); 25848257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou 25948257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou /* clear everything (slow & steady does it) */ 26048257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou for (i = 0; i < sizeof(*ep); i++) 261976de6a8c304dcc43e38efcb8a0bace7866b6242Scott Wood out_8((u8 __iomem *)ep + i, 0); 26248257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou 26348257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou /* get physical address */ 26448257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou rx_bd_base_phys = fep->ring_mem_addr; 26548257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou tx_bd_base_phys = rx_bd_base_phys + sizeof(cbd_t) * fpi->rx_ring; 26648257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou 26748257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou /* point to bds */ 26848257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou W32(ep, fen_genfcc.fcc_rbase, rx_bd_base_phys); 26948257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou W32(ep, fen_genfcc.fcc_tbase, tx_bd_base_phys); 27048257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou 27148257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou /* Set maximum bytes per receive buffer. 27248257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou * It must be a multiple of 32. 27348257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou */ 27448257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou W16(ep, fen_genfcc.fcc_mrblr, PKT_MAXBLR_SIZE); 27548257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou 27648257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou W32(ep, fen_genfcc.fcc_rstate, (CPMFCR_GBL | CPMFCR_EB) << 24); 27748257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou W32(ep, fen_genfcc.fcc_tstate, (CPMFCR_GBL | CPMFCR_EB) << 24); 27848257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou 27948257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou /* Allocate space in the reserved FCC area of DPRAM for the 28048257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou * internal buffers. No one uses this space (yet), so we 28148257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou * can do this. Later, we will add resource management for 28248257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou * this area. 28348257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou */ 28448257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou 28531a5bb04d59931eb4657826213a439d37d12d4a9Scott Wood W16(ep, fen_genfcc.fcc_riptr, fpi->dpram_offset); 28631a5bb04d59931eb4657826213a439d37d12d4a9Scott Wood W16(ep, fen_genfcc.fcc_tiptr, fpi->dpram_offset + 32); 28731a5bb04d59931eb4657826213a439d37d12d4a9Scott Wood 28831a5bb04d59931eb4657826213a439d37d12d4a9Scott Wood W16(ep, fen_padptr, fpi->dpram_offset + 64); 28948257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou 29048257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou /* fill with special symbol... */ 29131a5bb04d59931eb4657826213a439d37d12d4a9Scott Wood memset_io(fep->fcc.mem + fpi->dpram_offset + 64, 0x88, 32); 29248257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou 29348257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou W32(ep, fen_genfcc.fcc_rbptr, 0); 29448257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou W32(ep, fen_genfcc.fcc_tbptr, 0); 29548257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou W32(ep, fen_genfcc.fcc_rcrc, 0); 29648257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou W32(ep, fen_genfcc.fcc_tcrc, 0); 29748257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou W16(ep, fen_genfcc.fcc_res1, 0); 29848257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou W32(ep, fen_genfcc.fcc_res2, 0); 29948257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou 30048257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou /* no CAM */ 30148257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou W32(ep, fen_camptr, 0); 30248257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou 30348257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou /* Set CRC preset and mask */ 30448257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou W32(ep, fen_cmask, 0xdebb20e3); 30548257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou W32(ep, fen_cpres, 0xffffffff); 30648257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou 30748257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou W32(ep, fen_crcec, 0); /* CRC Error counter */ 30848257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou W32(ep, fen_alec, 0); /* alignment error counter */ 30948257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou W32(ep, fen_disfc, 0); /* discard frame counter */ 31048257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou W16(ep, fen_retlim, 15); /* Retry limit threshold */ 31148257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou W16(ep, fen_pper, 0); /* Normal persistence */ 31248257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou 31348257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou /* set group address */ 31448257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou W32(ep, fen_gaddrh, fep->fcc.gaddrh); 31548257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou W32(ep, fen_gaddrl, fep->fcc.gaddrh); 31648257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou 31748257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou /* Clear hash filter tables */ 31848257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou W32(ep, fen_iaddrh, 0); 31948257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou W32(ep, fen_iaddrl, 0); 32048257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou 32148257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou /* Clear the Out-of-sequence TxBD */ 32248257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou W16(ep, fen_tfcstat, 0); 32348257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou W16(ep, fen_tfclen, 0); 32448257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou W32(ep, fen_tfcptr, 0); 32548257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou 32648257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou W16(ep, fen_mflr, PKT_MAXBUF_SIZE); /* maximum frame length register */ 32748257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou W16(ep, fen_minflr, PKT_MINBUF_SIZE); /* minimum frame length register */ 32848257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou 32948257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou /* set address */ 33048257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou mac = dev->dev_addr; 33148257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou paddrh = ((u16)mac[5] << 8) | mac[4]; 33248257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou paddrm = ((u16)mac[3] << 8) | mac[2]; 33348257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou paddrl = ((u16)mac[1] << 8) | mac[0]; 33448257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou 33548257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou W16(ep, fen_paddrh, paddrh); 33648257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou W16(ep, fen_paddrm, paddrm); 33748257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou W16(ep, fen_paddrl, paddrl); 33848257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou 33948257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou W16(ep, fen_taddrh, 0); 34048257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou W16(ep, fen_taddrm, 0); 34148257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou W16(ep, fen_taddrl, 0); 34248257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou 34348257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou W16(ep, fen_maxd1, 1520); /* maximum DMA1 length */ 34448257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou W16(ep, fen_maxd2, 1520); /* maximum DMA2 length */ 34548257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou 34648257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou /* Clear stat counters, in case we ever enable RMON */ 34748257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou W32(ep, fen_octc, 0); 34848257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou W32(ep, fen_colc, 0); 34948257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou W32(ep, fen_broc, 0); 35048257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou W32(ep, fen_mulc, 0); 35148257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou W32(ep, fen_uspc, 0); 35248257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou W32(ep, fen_frgc, 0); 35348257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou W32(ep, fen_ospc, 0); 35448257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou W32(ep, fen_jbrc, 0); 35548257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou W32(ep, fen_p64c, 0); 35648257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou W32(ep, fen_p65c, 0); 35748257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou W32(ep, fen_p128c, 0); 35848257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou W32(ep, fen_p256c, 0); 35948257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou W32(ep, fen_p512c, 0); 36048257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou W32(ep, fen_p1024c, 0); 36148257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou 36248257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou W16(ep, fen_rfthr, 0); /* Suggested by manual */ 36348257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou W16(ep, fen_rfcnt, 0); 36448257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou W16(ep, fen_cftype, 0); 36548257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou 36648257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou fs_init_bds(dev); 36748257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou 36848257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou /* adjust to speed (for RMII mode) */ 36948257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou if (fpi->use_rmii) { 3705b4b8454344a0391bb0f69fda0f4ec8e1f0d2fedVitaly Bordug if (fep->phydev->speed == 100) 37148257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou C8(fcccp, fcc_gfemr, 0x20); 37248257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou else 37348257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou S8(fcccp, fcc_gfemr, 0x20); 37448257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou } 37548257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou 376976de6a8c304dcc43e38efcb8a0bace7866b6242Scott Wood fcc_cr_cmd(fep, CPM_CR_INIT_TRX); 37748257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou 37848257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou /* clear events */ 37948257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou W16(fccp, fcc_fcce, 0xffff); 38048257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou 38148257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou /* Enable interrupts we wish to service */ 38248257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou W16(fccp, fcc_fccm, FCC_ENET_TXE | FCC_ENET_RXF | FCC_ENET_TXB); 38348257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou 38448257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou /* Set GFMR to enable Ethernet operating mode */ 38548257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou W32(fccp, fcc_gfmr, FCC_GFMR_TCI | FCC_GFMR_MODE_ENET); 38648257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou 38748257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou /* set sync/delimiters */ 38848257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou W16(fccp, fcc_fdsr, 0xd555); 38948257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou 39048257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou W32(fccp, fcc_fpsmr, FCC_PSMR_ENCRC); 39148257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou 39248257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou if (fpi->use_rmii) 39348257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou S32(fccp, fcc_fpsmr, FCC_PSMR_RMII); 39448257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou 39548257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou /* adjust to duplex mode */ 3965b4b8454344a0391bb0f69fda0f4ec8e1f0d2fedVitaly Bordug if (fep->phydev->duplex) 39748257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou S32(fccp, fcc_fpsmr, FCC_PSMR_FDE | FCC_PSMR_LPB); 39848257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou else 39948257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou C32(fccp, fcc_fpsmr, FCC_PSMR_FDE | FCC_PSMR_LPB); 40048257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou 401c5a78ac00c400df29645e59938700301efb371d0Laurent Pinchart /* Restore multicast and promiscuous settings */ 402c5a78ac00c400df29645e59938700301efb371d0Laurent Pinchart set_multicast_list(dev); 403c5a78ac00c400df29645e59938700301efb371d0Laurent Pinchart 40448257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou S32(fccp, fcc_gfmr, FCC_GFMR_ENR | FCC_GFMR_ENT); 40548257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou} 40648257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou 40748257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antonioustatic void stop(struct net_device *dev) 40848257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou{ 40948257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou struct fs_enet_private *fep = netdev_priv(dev); 41031a5bb04d59931eb4657826213a439d37d12d4a9Scott Wood fcc_t __iomem *fccp = fep->fcc.fccp; 41148257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou 41248257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou /* stop ethernet */ 41348257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou C32(fccp, fcc_gfmr, FCC_GFMR_ENR | FCC_GFMR_ENT); 41448257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou 41548257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou /* clear events */ 41648257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou W16(fccp, fcc_fcce, 0xffff); 41748257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou 41848257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou /* clear interrupt mask */ 41948257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou W16(fccp, fcc_fccm, 0); 42048257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou 42148257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou fs_cleanup_bds(dev); 42248257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou} 42348257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou 42448257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antonioustatic void napi_clear_rx_event(struct net_device *dev) 42548257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou{ 42648257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou struct fs_enet_private *fep = netdev_priv(dev); 42731a5bb04d59931eb4657826213a439d37d12d4a9Scott Wood fcc_t __iomem *fccp = fep->fcc.fccp; 42848257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou 42948257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou W16(fccp, fcc_fcce, FCC_NAPI_RX_EVENT_MSK); 43048257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou} 43148257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou 43248257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antonioustatic void napi_enable_rx(struct net_device *dev) 43348257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou{ 43448257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou struct fs_enet_private *fep = netdev_priv(dev); 43531a5bb04d59931eb4657826213a439d37d12d4a9Scott Wood fcc_t __iomem *fccp = fep->fcc.fccp; 43648257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou 43748257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou S16(fccp, fcc_fccm, FCC_NAPI_RX_EVENT_MSK); 43848257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou} 43948257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou 44048257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antonioustatic void napi_disable_rx(struct net_device *dev) 44148257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou{ 44248257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou struct fs_enet_private *fep = netdev_priv(dev); 44331a5bb04d59931eb4657826213a439d37d12d4a9Scott Wood fcc_t __iomem *fccp = fep->fcc.fccp; 44448257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou 44548257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou C16(fccp, fcc_fccm, FCC_NAPI_RX_EVENT_MSK); 44648257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou} 44748257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou 44848257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antonioustatic void rx_bd_done(struct net_device *dev) 44948257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou{ 45048257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou /* nothing */ 45148257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou} 45248257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou 45348257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antonioustatic void tx_kickstart(struct net_device *dev) 45448257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou{ 4555b4b8454344a0391bb0f69fda0f4ec8e1f0d2fedVitaly Bordug struct fs_enet_private *fep = netdev_priv(dev); 45631a5bb04d59931eb4657826213a439d37d12d4a9Scott Wood fcc_t __iomem *fccp = fep->fcc.fccp; 4575b4b8454344a0391bb0f69fda0f4ec8e1f0d2fedVitaly Bordug 458c6565331b7162a8348c70c37b4c33bedb6d4f02dScott Wood S16(fccp, fcc_ftodr, 0x8000); 45948257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou} 46048257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou 46148257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antonioustatic u32 get_int_events(struct net_device *dev) 46248257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou{ 46348257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou struct fs_enet_private *fep = netdev_priv(dev); 46431a5bb04d59931eb4657826213a439d37d12d4a9Scott Wood fcc_t __iomem *fccp = fep->fcc.fccp; 46548257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou 46648257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou return (u32)R16(fccp, fcc_fcce); 46748257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou} 46848257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou 46948257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antonioustatic void clear_int_events(struct net_device *dev, u32 int_events) 47048257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou{ 47148257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou struct fs_enet_private *fep = netdev_priv(dev); 47231a5bb04d59931eb4657826213a439d37d12d4a9Scott Wood fcc_t __iomem *fccp = fep->fcc.fccp; 47348257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou 47448257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou W16(fccp, fcc_fcce, int_events & 0xffff); 47548257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou} 47648257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou 47748257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antonioustatic void ev_error(struct net_device *dev, u32 int_events) 47848257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou{ 479fcb6a1c83e48c30ff99624e9c46ce301707ede05Anatolij Gustschin struct fs_enet_private *fep = netdev_priv(dev); 480fcb6a1c83e48c30ff99624e9c46ce301707ede05Anatolij Gustschin 481fcb6a1c83e48c30ff99624e9c46ce301707ede05Anatolij Gustschin dev_warn(fep->dev, "FS_ENET ERROR(s) 0x%x\n", int_events); 48248257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou} 48348257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou 48431a5bb04d59931eb4657826213a439d37d12d4a9Scott Woodstatic int get_regs(struct net_device *dev, void *p, int *sizep) 48548257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou{ 48648257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou struct fs_enet_private *fep = netdev_priv(dev); 48748257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou 488976de6a8c304dcc43e38efcb8a0bace7866b6242Scott Wood if (*sizep < sizeof(fcc_t) + sizeof(fcc_enet_t) + 1) 48948257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou return -EINVAL; 49048257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou 49148257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou memcpy_fromio(p, fep->fcc.fccp, sizeof(fcc_t)); 49248257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou p = (char *)p + sizeof(fcc_t); 49348257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou 49448257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou memcpy_fromio(p, fep->fcc.ep, sizeof(fcc_enet_t)); 495976de6a8c304dcc43e38efcb8a0bace7866b6242Scott Wood p = (char *)p + sizeof(fcc_enet_t); 49648257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou 497976de6a8c304dcc43e38efcb8a0bace7866b6242Scott Wood memcpy_fromio(p, fep->fcc.fcccp, 1); 49848257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou return 0; 49948257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou} 50048257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou 50131a5bb04d59931eb4657826213a439d37d12d4a9Scott Woodstatic int get_regs_len(struct net_device *dev) 50248257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou{ 503976de6a8c304dcc43e38efcb8a0bace7866b6242Scott Wood return sizeof(fcc_t) + sizeof(fcc_enet_t) + 1; 50448257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou} 50548257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou 50648257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou/* Some transmit errors cause the transmitter to shut 50732f6249ba7d63d5d86dae930d63ca70ec11d59afMark Ware * down. We now issue a restart transmit. 50832f6249ba7d63d5d86dae930d63ca70ec11d59afMark Ware * Also, to workaround 8260 device erratum CPM37, we must 50932f6249ba7d63d5d86dae930d63ca70ec11d59afMark Ware * disable and then re-enable the transmitterfollowing a 51032f6249ba7d63d5d86dae930d63ca70ec11d59afMark Ware * Late Collision, Underrun, or Retry Limit error. 51132f6249ba7d63d5d86dae930d63ca70ec11d59afMark Ware * In addition, tbptr may point beyond BDs beyond still marked 51232f6249ba7d63d5d86dae930d63ca70ec11d59afMark Ware * as ready due to internal pipelining, so we need to look back 51332f6249ba7d63d5d86dae930d63ca70ec11d59afMark Ware * through the BDs and adjust tbptr to point to the last BD 51432f6249ba7d63d5d86dae930d63ca70ec11d59afMark Ware * marked as ready. This may result in some buffers being 51532f6249ba7d63d5d86dae930d63ca70ec11d59afMark Ware * retransmitted. 51648257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou */ 51731a5bb04d59931eb4657826213a439d37d12d4a9Scott Woodstatic void tx_restart(struct net_device *dev) 51848257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou{ 51948257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou struct fs_enet_private *fep = netdev_priv(dev); 52031a5bb04d59931eb4657826213a439d37d12d4a9Scott Wood fcc_t __iomem *fccp = fep->fcc.fccp; 52132f6249ba7d63d5d86dae930d63ca70ec11d59afMark Ware const struct fs_platform_info *fpi = fep->fpi; 52232f6249ba7d63d5d86dae930d63ca70ec11d59afMark Ware fcc_enet_t __iomem *ep = fep->fcc.ep; 52332f6249ba7d63d5d86dae930d63ca70ec11d59afMark Ware cbd_t __iomem *curr_tbptr; 52432f6249ba7d63d5d86dae930d63ca70ec11d59afMark Ware cbd_t __iomem *recheck_bd; 52532f6249ba7d63d5d86dae930d63ca70ec11d59afMark Ware cbd_t __iomem *prev_bd; 52632f6249ba7d63d5d86dae930d63ca70ec11d59afMark Ware cbd_t __iomem *last_tx_bd; 52732f6249ba7d63d5d86dae930d63ca70ec11d59afMark Ware 52832f6249ba7d63d5d86dae930d63ca70ec11d59afMark Ware last_tx_bd = fep->tx_bd_base + (fpi->tx_ring * sizeof(cbd_t)); 52932f6249ba7d63d5d86dae930d63ca70ec11d59afMark Ware 53032f6249ba7d63d5d86dae930d63ca70ec11d59afMark Ware /* get the current bd held in TBPTR and scan back from this point */ 53132f6249ba7d63d5d86dae930d63ca70ec11d59afMark Ware recheck_bd = curr_tbptr = (cbd_t __iomem *) 53232f6249ba7d63d5d86dae930d63ca70ec11d59afMark Ware ((R32(ep, fen_genfcc.fcc_tbptr) - fep->ring_mem_addr) + 53332f6249ba7d63d5d86dae930d63ca70ec11d59afMark Ware fep->ring_base); 53432f6249ba7d63d5d86dae930d63ca70ec11d59afMark Ware 53532f6249ba7d63d5d86dae930d63ca70ec11d59afMark Ware prev_bd = (recheck_bd == fep->tx_bd_base) ? last_tx_bd : recheck_bd - 1; 53632f6249ba7d63d5d86dae930d63ca70ec11d59afMark Ware 53732f6249ba7d63d5d86dae930d63ca70ec11d59afMark Ware /* Move through the bds in reverse, look for the earliest buffer 53832f6249ba7d63d5d86dae930d63ca70ec11d59afMark Ware * that is not ready. Adjust TBPTR to the following buffer */ 53932f6249ba7d63d5d86dae930d63ca70ec11d59afMark Ware while ((CBDR_SC(prev_bd) & BD_ENET_TX_READY) != 0) { 54032f6249ba7d63d5d86dae930d63ca70ec11d59afMark Ware /* Go back one buffer */ 54132f6249ba7d63d5d86dae930d63ca70ec11d59afMark Ware recheck_bd = prev_bd; 54232f6249ba7d63d5d86dae930d63ca70ec11d59afMark Ware 54332f6249ba7d63d5d86dae930d63ca70ec11d59afMark Ware /* update the previous buffer */ 54432f6249ba7d63d5d86dae930d63ca70ec11d59afMark Ware prev_bd = (prev_bd == fep->tx_bd_base) ? last_tx_bd : prev_bd - 1; 54532f6249ba7d63d5d86dae930d63ca70ec11d59afMark Ware 54632f6249ba7d63d5d86dae930d63ca70ec11d59afMark Ware /* We should never see all bds marked as ready, check anyway */ 54732f6249ba7d63d5d86dae930d63ca70ec11d59afMark Ware if (recheck_bd == curr_tbptr) 54832f6249ba7d63d5d86dae930d63ca70ec11d59afMark Ware break; 54932f6249ba7d63d5d86dae930d63ca70ec11d59afMark Ware } 55032f6249ba7d63d5d86dae930d63ca70ec11d59afMark Ware /* Now update the TBPTR and dirty flag to the current buffer */ 55132f6249ba7d63d5d86dae930d63ca70ec11d59afMark Ware W32(ep, fen_genfcc.fcc_tbptr, 55232f6249ba7d63d5d86dae930d63ca70ec11d59afMark Ware (uint) (((void *)recheck_bd - fep->ring_base) + 55332f6249ba7d63d5d86dae930d63ca70ec11d59afMark Ware fep->ring_mem_addr)); 55432f6249ba7d63d5d86dae930d63ca70ec11d59afMark Ware fep->dirty_tx = recheck_bd; 55548257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou 55648257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou C32(fccp, fcc_gfmr, FCC_GFMR_ENT); 55748257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou udelay(10); 55848257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou S32(fccp, fcc_gfmr, FCC_GFMR_ENT); 55948257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou 560976de6a8c304dcc43e38efcb8a0bace7866b6242Scott Wood fcc_cr_cmd(fep, CPM_CR_RESTART_TX); 56148257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou} 56248257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou 56348257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou/*************************************************************************/ 56448257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou 56548257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniouconst struct fs_ops fs_fcc_ops = { 56648257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou .setup_data = setup_data, 56748257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou .cleanup_data = cleanup_data, 56848257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou .set_multicast_list = set_multicast_list, 56948257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou .restart = restart, 57048257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou .stop = stop, 57148257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou .napi_clear_rx_event = napi_clear_rx_event, 57248257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou .napi_enable_rx = napi_enable_rx, 57348257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou .napi_disable_rx = napi_disable_rx, 57448257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou .rx_bd_done = rx_bd_done, 57548257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou .tx_kickstart = tx_kickstart, 57648257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou .get_int_events = get_int_events, 57748257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou .clear_int_events = clear_int_events, 57848257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou .ev_error = ev_error, 57948257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou .get_regs = get_regs, 58048257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou .get_regs_len = get_regs_len, 58148257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou .tx_restart = tx_restart, 58248257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou .allocate_bd = allocate_bd, 58348257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou .free_bd = free_bd, 58448257c4f168e5d040394aeca4d37b59f68e0d36bPantelis Antoniou}; 585