diff options
Diffstat (limited to 'drivers/net/fec_8xx')
| -rw-r--r-- | drivers/net/fec_8xx/Kconfig | 20 | ||||
| -rw-r--r-- | drivers/net/fec_8xx/Makefile | 12 | ||||
| -rw-r--r-- | drivers/net/fec_8xx/fec_8xx-netta.c | 151 | ||||
| -rw-r--r-- | drivers/net/fec_8xx/fec_8xx.h | 220 | ||||
| -rw-r--r-- | drivers/net/fec_8xx/fec_main.c | 1264 | ||||
| -rw-r--r-- | drivers/net/fec_8xx/fec_mii.c | 418 |
6 files changed, 0 insertions, 2085 deletions
diff --git a/drivers/net/fec_8xx/Kconfig b/drivers/net/fec_8xx/Kconfig deleted file mode 100644 index afb34ded26e..00000000000 --- a/drivers/net/fec_8xx/Kconfig +++ /dev/null @@ -1,20 +0,0 @@ -config FEC_8XX - tristate "Motorola 8xx FEC driver" - depends on 8XX - select MII - -config FEC_8XX_GENERIC_PHY - bool "Support any generic PHY" - depends on FEC_8XX - default y - -config FEC_8XX_DM9161_PHY - bool "Support DM9161 PHY" - depends on FEC_8XX - default n - -config FEC_8XX_LXT971_PHY - bool "Support LXT971/LXT972 PHY" - depends on FEC_8XX - default n - diff --git a/drivers/net/fec_8xx/Makefile b/drivers/net/fec_8xx/Makefile deleted file mode 100644 index 70c54f8c48e..00000000000 --- a/drivers/net/fec_8xx/Makefile +++ /dev/null @@ -1,12 +0,0 @@ -# -# Makefile for the Motorola 8xx FEC ethernet controller -# - -obj-$(CONFIG_FEC_8XX) += fec_8xx.o - -fec_8xx-objs := fec_main.o fec_mii.o - -# the platform instantatiation objects -ifeq ($(CONFIG_NETTA),y) -fec_8xx-objs += fec_8xx-netta.o -endif diff --git a/drivers/net/fec_8xx/fec_8xx-netta.c b/drivers/net/fec_8xx/fec_8xx-netta.c deleted file mode 100644 index 79deee222e2..00000000000 --- a/drivers/net/fec_8xx/fec_8xx-netta.c +++ /dev/null @@ -1,151 +0,0 @@ -/* - * FEC instantatiation file for NETTA - */ - -#include <linux/kernel.h> -#include <linux/types.h> -#include <linux/string.h> -#include <linux/ptrace.h> -#include <linux/errno.h> -#include <linux/ioport.h> -#include <linux/slab.h> -#include <linux/interrupt.h> -#include <linux/pci.h> -#include <linux/init.h> -#include <linux/delay.h> -#include <linux/netdevice.h> -#include <linux/etherdevice.h> -#include <linux/skbuff.h> -#include <linux/spinlock.h> -#include <linux/mii.h> -#include <linux/ethtool.h> -#include <linux/bitops.h> - -#include <asm/8xx_immap.h> -#include <asm/pgtable.h> -#include <asm/mpc8xx.h> -#include <asm/irq.h> -#include <asm/uaccess.h> -#include <asm/cpm1.h> - -#include "fec_8xx.h" - -/*************************************************/ - -static struct fec_platform_info fec1_info = { - .fec_no = 0, - .use_mdio = 1, - .phy_addr = 8, - .fec_irq = SIU_LEVEL1, - .phy_irq = CPM_IRQ_OFFSET + CPMVEC_PIO_PC6, - .rx_ring = 128, - .tx_ring = 16, - .rx_copybreak = 240, - .use_napi = 1, - .napi_weight = 17, -}; - -static struct fec_platform_info fec2_info = { - .fec_no = 1, - .use_mdio = 1, - .phy_addr = 2, - .fec_irq = SIU_LEVEL3, - .phy_irq = CPM_IRQ_OFFSET + CPMVEC_PIO_PC7, - .rx_ring = 128, - .tx_ring = 16, - .rx_copybreak = 240, - .use_napi = 1, - .napi_weight = 17, -}; - -static struct net_device *fec1_dev; -static struct net_device *fec2_dev; - -/* XXX custom u-boot & Linux startup needed */ -extern const char *__fw_getenv(const char *var); - -/* access ports */ -#define setbits32(_addr, _v) __fec_out32(&(_addr), __fec_in32(&(_addr)) | (_v)) -#define clrbits32(_addr, _v) __fec_out32(&(_addr), __fec_in32(&(_addr)) & ~(_v)) - -#define setbits16(_addr, _v) __fec_out16(&(_addr), __fec_in16(&(_addr)) | (_v)) -#define clrbits16(_addr, _v) __fec_out16(&(_addr), __fec_in16(&(_addr)) & ~(_v)) - -int fec_8xx_platform_init(void) -{ - immap_t *immap = (immap_t *)IMAP_ADDR; - bd_t *bd = (bd_t *) __res; - const char *s; - char *e; - int i; - - /* use MDC for MII */ - setbits16(immap->im_ioport.iop_pdpar, 0x0080); - clrbits16(immap->im_ioport.iop_pddir, 0x0080); - - /* configure FEC1 pins */ - setbits16(immap->im_ioport.iop_papar, 0xe810); - setbits16(immap->im_ioport.iop_padir, 0x0810); - clrbits16(immap->im_ioport.iop_padir, 0xe000); - - setbits32(immap->im_cpm.cp_pbpar, 0x00000001); - clrbits32(immap->im_cpm.cp_pbdir, 0x00000001); - - setbits32(immap->im_cpm.cp_cptr, 0x00000100); - clrbits32(immap->im_cpm.cp_cptr, 0x00000050); - - clrbits16(immap->im_ioport.iop_pcpar, 0x0200); - clrbits16(immap->im_ioport.iop_pcdir, 0x0200); - clrbits16(immap->im_ioport.iop_pcso, 0x0200); - setbits16(immap->im_ioport.iop_pcint, 0x0200); - - /* configure FEC2 pins */ - setbits32(immap->im_cpm.cp_pepar, 0x00039620); - setbits32(immap->im_cpm.cp_pedir, 0x00039620); - setbits32(immap->im_cpm.cp_peso, 0x00031000); - clrbits32(immap->im_cpm.cp_peso, 0x00008620); - - setbits32(immap->im_cpm.cp_cptr, 0x00000080); - clrbits32(immap->im_cpm.cp_cptr, 0x00000028); - - clrbits16(immap->im_ioport.iop_pcpar, 0x0200); - clrbits16(immap->im_ioport.iop_pcdir, 0x0200); - clrbits16(immap->im_ioport.iop_pcso, 0x0200); - setbits16(immap->im_ioport.iop_pcint, 0x0200); - - /* fill up */ - fec1_info.sys_clk = bd->bi_intfreq; - fec2_info.sys_clk = bd->bi_intfreq; - - s = __fw_getenv("ethaddr"); - if (s != NULL) { - for (i = 0; i < 6; i++) { - fec1_info.macaddr[i] = simple_strtoul(s, &e, 16); - if (*e) - s = e + 1; - } - } - - s = __fw_getenv("eth1addr"); - if (s != NULL) { - for (i = 0; i < 6; i++) { - fec2_info.macaddr[i] = simple_strtoul(s, &e, 16); - if (*e) - s = e + 1; - } - } - - fec_8xx_init_one(&fec1_info, &fec1_dev); - fec_8xx_init_one(&fec2_info, &fec2_dev); - - return fec1_dev != NULL && fec2_dev != NULL ? 0 : -1; -} - -void fec_8xx_platform_cleanup(void) -{ - if (fec2_dev != NULL) - fec_8xx_cleanup_one(fec2_dev); - - if (fec1_dev != NULL) - fec_8xx_cleanup_one(fec1_dev); -} diff --git a/drivers/net/fec_8xx/fec_8xx.h b/drivers/net/fec_8xx/fec_8xx.h deleted file mode 100644 index f3b1c6fbba8..00000000000 --- a/drivers/net/fec_8xx/fec_8xx.h +++ /dev/null @@ -1,220 +0,0 @@ -#ifndef FEC_8XX_H -#define FEC_8XX_H - -#include <linux/mii.h> -#include <linux/netdevice.h> - -#include <linux/types.h> - -/* HW info */ - -/* CRC polynomium used by the FEC for the multicast group filtering */ -#define FEC_CRC_POLY 0x04C11DB7 - -#define MII_ADVERTISE_HALF (ADVERTISE_100HALF | \ - ADVERTISE_10HALF | ADVERTISE_CSMA) -#define MII_ADVERTISE_ALL (ADVERTISE_100FULL | \ - ADVERTISE_10FULL | MII_ADVERTISE_HALF) - -/* Interrupt events/masks. -*/ -#define FEC_ENET_HBERR 0x80000000U /* Heartbeat error */ -#define FEC_ENET_BABR 0x40000000U /* Babbling receiver */ -#define FEC_ENET_BABT 0x20000000U /* Babbling transmitter */ -#define FEC_ENET_GRA 0x10000000U /* Graceful stop complete */ -#define FEC_ENET_TXF 0x08000000U /* Full frame transmitted */ -#define FEC_ENET_TXB 0x04000000U /* A buffer was transmitted */ -#define FEC_ENET_RXF 0x02000000U /* Full frame received */ -#define FEC_ENET_RXB 0x01000000U /* A buffer was received */ -#define FEC_ENET_MII 0x00800000U /* MII interrupt */ -#define FEC_ENET_EBERR 0x00400000U /* SDMA bus error */ - -#define FEC_ECNTRL_PINMUX 0x00000004 -#define FEC_ECNTRL_ETHER_EN 0x00000002 -#define FEC_ECNTRL_RESET 0x00000001 - -#define FEC_RCNTRL_BC_REJ 0x00000010 -#define FEC_RCNTRL_PROM 0x00000008 -#define FEC_RCNTRL_MII_MODE 0x00000004 -#define FEC_RCNTRL_DRT 0x00000002 -#define FEC_RCNTRL_LOOP 0x00000001 - -#define FEC_TCNTRL_FDEN 0x00000004 -#define FEC_TCNTRL_HBC 0x00000002 -#define FEC_TCNTRL_GTS 0x00000001 - -/* values for MII phy_status */ - -#define PHY_CONF_ANE 0x0001 /* 1 auto-negotiation enabled */ -#define PHY_CONF_LOOP 0x0002 /* 1 loopback mode enabled */ -#define PHY_CONF_SPMASK 0x00f0 /* mask for speed */ -#define PHY_CONF_10HDX 0x0010 /* 10 Mbit half duplex supported */ -#define PHY_CONF_10FDX 0x0020 /* 10 Mbit full duplex supported */ -#define PHY_CONF_100HDX 0x0040 /* 100 Mbit half duplex supported */ -#define PHY_CONF_100FDX 0x0080 /* 100 Mbit full duplex supported */ - -#define PHY_STAT_LINK 0x0100 /* 1 up - 0 down */ -#define PHY_STAT_FAULT 0x0200 /* 1 remote fault */ -#define PHY_STAT_ANC 0x0400 /* 1 auto-negotiation complete */ -#define PHY_STAT_SPMASK 0xf000 /* mask for speed */ -#define PHY_STAT_10HDX 0x1000 /* 10 Mbit half duplex selected */ -#define PHY_STAT_10FDX 0x2000 /* 10 Mbit full duplex selected */ -#define PHY_STAT_100HDX 0x4000 /* 100 Mbit half duplex selected */ -#define PHY_STAT_100FDX 0x8000 /* 100 Mbit full duplex selected */ - -typedef struct phy_info { - unsigned int id; - const char *name; - void (*startup) (struct net_device * dev); - void (*shutdown) (struct net_device * dev); - void (*ack_int) (struct net_device * dev); -} phy_info_t; - -/* The FEC stores dest/src/type, data, and checksum for receive packets. - */ -#define MAX_MTU 1508 /* Allow fullsized pppoe packets over VLAN */ -#define MIN_MTU 46 /* this is data size */ -#define CRC_LEN 4 - -#define PKT_MAXBUF_SIZE (MAX_MTU+ETH_HLEN+CRC_LEN) -#define PKT_MINBUF_SIZE (MIN_MTU+ETH_HLEN+CRC_LEN) - -/* Must be a multiple of 4 */ -#define PKT_MAXBLR_SIZE ((PKT_MAXBUF_SIZE+3) & ~3) -/* This is needed so that invalidate_xxx wont invalidate too much */ -#define ENET_RX_FRSIZE L1_CACHE_ALIGN(PKT_MAXBUF_SIZE) - -/* platform interface */ - -struct fec_platform_info { - int fec_no; /* FEC index */ - int use_mdio; /* use external MII */ - int phy_addr; /* the phy address */ - int fec_irq, phy_irq; /* the irq for the controller */ - int rx_ring, tx_ring; /* number of buffers on rx */ - int sys_clk; /* system clock */ - __u8 macaddr[6]; /* mac address */ - int rx_copybreak; /* limit we copy small frames */ - int use_napi; /* use NAPI */ - int napi_weight; /* NAPI weight */ -}; - -/* forward declaration */ -struct fec; - -struct fec_enet_private { - spinlock_t lock; /* during all ops except TX pckt processing */ - spinlock_t tx_lock; /* during fec_start_xmit and fec_tx */ - struct net_device *dev; - struct napi_struct napi; - int fecno; - struct fec *fecp; - const struct fec_platform_info *fpi; - int rx_ring, tx_ring; - dma_addr_t ring_mem_addr; - void *ring_base; - struct sk_buff **rx_skbuff; - struct sk_buff **tx_skbuff; - cbd_t *rx_bd_base; /* Address of Rx and Tx buffers. */ - cbd_t *tx_bd_base; - cbd_t *dirty_tx; /* ring entries to be free()ed. */ - cbd_t *cur_rx; - cbd_t *cur_tx; - int tx_free; - struct net_device_stats stats; - struct timer_list phy_timer_list; - const struct phy_info *phy; - unsigned int fec_phy_speed; - __u32 msg_enable; - struct mii_if_info mii_if; -}; - -/***************************************************************************/ - -void fec_restart(struct net_device *dev, int duplex, int speed); -void fec_stop(struct net_device *dev); - -/***************************************************************************/ - -int fec_mii_read(struct net_device *dev, int phy_id, int location); -void fec_mii_write(struct net_device *dev, int phy_id, int location, int value); - -int fec_mii_phy_id_detect(struct net_device *dev); -void fec_mii_startup(struct net_device *dev); -void fec_mii_shutdown(struct net_device *dev); -void fec_mii_ack_int(struct net_device *dev); - -void fec_mii_link_status_change_check(struct net_device *dev, int init_media); - -/***************************************************************************/ - -#define FEC1_NO 0x00 -#define FEC2_NO 0x01 -#define FEC3_NO 0x02 - -int fec_8xx_init_one(const struct fec_platform_info *fpi, - struct net_device **devp); -int fec_8xx_cleanup_one(struct net_device *dev); - -/***************************************************************************/ - -#define DRV_MODULE_NAME "fec_8xx" -#define PFX DRV_MODULE_NAME ": " -#define DRV_MODULE_VERSION "0.1" -#define DRV_MODULE_RELDATE "May 6, 2004" - -/***************************************************************************/ - -int fec_8xx_platform_init(void); -void fec_8xx_platform_cleanup(void); - -/***************************************************************************/ - -/* FEC access macros */ -#if defined(CONFIG_8xx) -/* for a 8xx __raw_xxx's are sufficient */ -#define __fec_out32(addr, x) __raw_writel(x, addr) -#define __fec_out16(addr, x) __raw_writew(x, addr) -#define __fec_in32(addr) __raw_readl(addr) -#define __fec_in16(addr) __raw_readw(addr) -#else -/* for others play it safe */ -#define __fec_out32(addr, x) out_be32(addr, x) -#define __fec_out16(addr, x) out_be16(addr, x) -#define __fec_in32(addr) in_be32(addr) -#define __fec_in16(addr) in_be16(addr) -#endif - -/* write */ -#define FW(_fecp, _reg, _v) __fec_out32(&(_fecp)->fec_ ## _reg, (_v)) - -/* read */ -#define FR(_fecp, _reg) __fec_in32(&(_fecp)->fec_ ## _reg) - -/* set bits */ -#define FS(_fecp, _reg, _v) FW(_fecp, _reg, FR(_fecp, _reg) | (_v)) - -/* clear bits */ -#define FC(_fecp, _reg, _v) FW(_fecp, _reg, FR(_fecp, _reg) & ~(_v)) - -/* buffer descriptor access macros */ - -/* write */ -#define CBDW_SC(_cbd, _sc) __fec_out16(&(_cbd)->cbd_sc, (_sc)) -#define CBDW_DATLEN(_cbd, _datlen) __fec_out16(&(_cbd)->cbd_datlen, (_datlen)) -#define CBDW_BUFADDR(_cbd, _bufaddr) __fec_out32(&(_cbd)->cbd_bufaddr, (_bufaddr)) - -/* read */ -#define CBDR_SC(_cbd) __fec_in16(&(_cbd)->cbd_sc) -#define CBDR_DATLEN(_cbd) __fec_in16(&(_cbd)->cbd_datlen) -#define CBDR_BUFADDR(_cbd) __fec_in32(&(_cbd)->cbd_bufaddr) - -/* set bits */ -#define CBDS_SC(_cbd, _sc) CBDW_SC(_cbd, CBDR_SC(_cbd) | (_sc)) - -/* clear bits */ -#define CBDC_SC(_cbd, _sc) CBDW_SC(_cbd, CBDR_SC(_cbd) & ~(_sc)) - -/***************************************************************************/ - -#endif diff --git a/drivers/net/fec_8xx/fec_main.c b/drivers/net/fec_8xx/fec_main.c deleted file mode 100644 index ca8d2e83ab0..00000000000 --- a/drivers/net/fec_8xx/fec_main.c +++ /dev/null @@ -1,1264 +0,0 @@ -/* - * Fast Ethernet Controller (FEC) driver for Motorola MPC8xx. - * - * Copyright (c) 2003 Intracom S.A. - * by Pantelis Antoniou <panto@intracom.gr> - * - * Heavily based on original FEC driver by Dan Malek <dan@embeddededge.com> - * and modifications by Joakim Tjernlund <joakim.tjernlund@lumentis.se> - * - * Released under the GPL - */ - -#include <linux/module.h> -#include <linux/kernel.h> -#include <linux/types.h> -#include <linux/string.h> -#include <linux/ptrace.h> -#include <linux/errno.h> -#include <linux/ioport.h> -#include <linux/slab.h> -#include <linux/interrupt.h> -#include <linux/init.h> -#include <linux/delay.h> -#include <linux/netdevice.h> -#include <linux/etherdevice.h> -#include <linux/skbuff.h> -#include <linux/spinlock.h> -#include <linux/mii.h> -#include <linux/ethtool.h> -#include <linux/bitops.h> -#include <linux/dma-mapping.h> - -#include <asm/8xx_immap.h> -#include <asm/pgtable.h> -#include <asm/mpc8xx.h> -#include <asm/irq.h> -#include <asm/uaccess.h> -#include <asm/cpm1.h> - -#include "fec_8xx.h" - -/*************************************************/ - -#define FEC_MAX_MULTICAST_ADDRS 64 - -/*************************************************/ - -static char version[] __devinitdata = - DRV_MODULE_NAME ".c:v" DRV_MODULE_VERSION " (" DRV_MODULE_RELDATE ")" "\n"; - -MODULE_AUTHOR("Pantelis Antoniou <panto@intracom.gr>"); -MODULE_DESCRIPTION("Motorola 8xx FEC ethernet driver"); -MODULE_LICENSE("GPL"); - -int fec_8xx_debug = -1; /* -1 == use FEC_8XX_DEF_MSG_ENABLE as value */ -module_param(fec_8xx_debug, int, 0); -MODULE_PARM_DESC(fec_8xx_debug, - "FEC 8xx bitmapped debugging message enable value"); - - -/*************************************************/ - -/* - * Delay to wait for FEC reset command to complete (in us) - */ -#define FEC_RESET_DELAY 50 - -/*****************************************************************************************/ - -static void fec_whack_reset(fec_t * fecp) -{ - int i; - - /* - * Whack a reset. We should wait for this. - */ - FW(fecp, ecntrl, FEC_ECNTRL_PINMUX | FEC_ECNTRL_RESET); - for (i = 0; - (FR(fecp, ecntrl) & FEC_ECNTRL_RESET) != 0 && i < FEC_RESET_DELAY; - i++) - udelay(1); - - if (i == FEC_RESET_DELAY) - printk(KERN_WARNING "FEC Reset timeout!\n"); - -} - -/****************************************************************************/ - -/* - * Transmitter timeout. - */ -#define TX_TIMEOUT (2*HZ) - -/****************************************************************************/ - -/* - * Returns the CRC needed when filling in the hash table for - * multicast group filtering - * pAddr must point to a MAC address (6 bytes) - */ -static __u32 fec_mulicast_calc_crc(char *pAddr) -{ - u8 byte; - int byte_count; - int bit_count; - __u32 crc = 0xffffffff; - u8 msb; - - for (byte_count = 0; byte_count < 6; byte_count++) { - byte = pAddr[byte_count]; - for (bit_count = 0; bit_count < 8; bit_count++) { - msb = crc >> 31; - crc <<= 1; - if (msb ^ (byte & 0x1)) { - crc ^= FEC_CRC_POLY; - } - byte >>= 1; - } - } - return (crc); -} - -/* - * Set or clear the multicast filter for this adaptor. - * Skeleton taken from sunlance driver. - * The CPM Ethernet implementation allows Multicast as well as individual - * MAC address filtering. Some of the drivers check to make sure it is - * a group multicast address, and discard those that are not. I guess I - * will do the same for now, but just remove the test if you want - * individual filtering as well (do the upper net layers want or support - * this kind of feature?). - */ -static void fec_set_multicast_list(struct net_device *dev) -{ - struct fec_enet_private *fep = netdev_priv(dev); - fec_t *fecp = fep->fecp; - struct dev_mc_list *pmc; - __u32 crc; - int temp; - __u32 csrVal; - int hash_index; - __u32 hthi, htlo; - unsigned long flags; - - - if ((dev->flags & IFF_PROMISC) != 0) { - - spin_lock_irqsave(&fep->lock, flags); - FS(fecp, r_cntrl, FEC_RCNTRL_PROM); - spin_unlock_irqrestore(&fep->lock, flags); - - /* - * Log any net taps. - */ - printk(KERN_WARNING DRV_MODULE_NAME - ": %s: Promiscuous mode enabled.\n", dev->name); - return; - - } - - if ((dev->flags & IFF_ALLMULTI) != 0 || - dev->mc_count > FEC_MAX_MULTICAST_ADDRS) { - /* - * Catch all multicast addresses, set the filter to all 1's. - */ - hthi = 0xffffffffU; - htlo = 0xffffffffU; - } else { - hthi = 0; - htlo = 0; - - /* - * Now populate the hash table - */ - for (pmc = dev->mc_list; pmc != NULL; pmc = pmc->next) { - crc = fec_mulicast_calc_crc(pmc->dmi_addr); - temp = (crc & 0x3f) >> 1; - hash_index = ((temp & 0x01) << 4) | - ((temp & 0x02) << 2) | - ((temp & 0x04)) | - ((temp & 0x08) >> 2) | - ((temp & 0x10) >> 4); - csrVal = (1 << hash_index); - if (crc & 1) - hthi |= csrVal; - else - htlo |= csrVal; - } - } - - spin_lock_irqsave(&fep->lock, flags); - FC(fecp, r_cntrl, FEC_RCNTRL_PROM); - FW(fecp, hash_table_high, hthi); - FW(fecp, hash_table_low, htlo); - spin_unlock_irqrestore(&fep->lock, flags); -} - -static int fec_set_mac_address(struct net_device *dev, void *addr) -{ - struct sockaddr *mac = addr; - struct fec_enet_private *fep = netdev_priv(dev); - struct fec *fecp = fep->fecp; - int i; - __u32 addrhi, addrlo; - unsigned long flags; - - /* Get pointer to SCC area in parameter RAM. */ - for (i = 0; i < 6; i++) - dev->dev_addr[i] = mac->sa_data[i]; - - /* - * Set station address. - */ - addrhi = ((__u32) dev->dev_addr[0] << 24) | - ((__u32) dev->dev_addr[1] << 16) | - ((__u32) dev->dev_addr[2] << 8) | - (__u32) dev->dev_addr[3]; - addrlo = ((__u32) dev->dev_addr[4] << 24) | - ((__u32) dev->dev_addr[5] << 16); - - spin_lock_irqsave(&fep->lock, flags); - FW(fecp, addr_low, addrhi); - FW(fecp, addr_high, addrlo); - spin_unlock_irqrestore(&fep->lock, flags); - - return 0; -} - -/* - * This function is called to start or restart the FEC during a link - * change. This only happens when switching between half and full - * duplex. - */ -void fec_restart(struct net_device *dev, int duplex, int speed) -{ -#ifdef CONFIG_DUET - immap_t *immap = (immap_t *) IMAP_ADDR; - __u32 cptr; -#endif - struct fec_enet_private *fep = netdev_priv(dev); - struct fec *fecp = fep->fecp; - const struct fec_platform_info *fpi = fep->fpi; - cbd_t *bdp; - struct sk_buff *skb; - int i; - __u32 addrhi, addrlo; - - fec_whack_reset(fep->fecp); - - /* - * Set station address. - */ - addrhi = ((__u32) dev->dev_addr[0] << 24) | - ((__u32) dev->dev_addr[1] << 16) | - ((__u32) dev->dev_addr[2] << 8) | - (__u32) dev->dev_addr[3]; - addrlo = ((__u32) dev->dev_addr[4] << 24) | - ((__u32) dev->dev_addr[5] << 16); - FW(fecp, addr_low, addrhi); - FW(fecp, addr_high, addrlo); - - /* - * Reset all multicast. - */ - FW(fecp, hash_table_high, 0); - FW(fecp, hash_table_low, 0); - - /* - * Set maximum receive buffer size. - */ - FW(fecp, r_buff_size, PKT_MAXBLR_SIZE); - FW(fecp, r_hash, PKT_MAXBUF_SIZE); - - /* - * Set receive and transmit descriptor base. - */ - FW(fecp, r_des_start, iopa((__u32) (fep->rx_bd_base))); - FW(fecp, x_des_start, iopa((__u32) (fep->tx_bd_base))); - - fep->dirty_tx = fep->cur_tx = fep->tx_bd_base; - fep->tx_free = fep->tx_ring; - fep->cur_rx = fep->rx_bd_base; - - /* - * Reset SKB receive buffers - */ - for (i = 0; i < fep->rx_ring; i++) { - if ((skb = fep->rx_skbuff[i]) == NULL) - continue; - fep->rx_skbuff[i] = NULL; - dev_kfree_skb(skb); - } - - /* - * Initialize the receive buffer descriptors. - */ - for (i = 0, bdp = fep->rx_bd_base; i < fep->rx_ring; i++, bdp++) { - skb = dev_alloc_skb(ENET_RX_FRSIZE); - if (skb == NULL) { - printk(KERN_WARNING DRV_MODULE_NAME - ": %s Memory squeeze, unable to allocate skb\n", - dev->name); - fep->stats.rx_dropped++; - break; - } - fep->rx_skbuff[i] = skb; - skb->dev = dev; - CBDW_BUFADDR(bdp, dma_map_single(NULL, skb->data, - L1_CACHE_ALIGN(PKT_MAXBUF_SIZE), - DMA_FROM_DEVICE)); - CBDW_DATLEN(bdp, 0); /* zero */ - CBDW_SC(bdp, BD_ENET_RX_EMPTY | - ((i < fep->rx_ring - 1) ? 0 : BD_SC_WRAP)); - } - /* - * if we failed, fillup remainder - */ - for (; i < fep->rx_ring; i++, bdp++) { - fep->rx_skbuff[i] = NULL; - CBDW_SC(bdp, (i < fep->rx_ring - 1) ? 0 : BD_SC_WRAP); - } - - /* - * Reset SKB transmit buffers. - */ - for (i = 0; i < fep->tx_ring; i++) { - if ((skb = fep->tx_skbuff[i]) == NULL) - continue; - fep->tx_skbuff[i] = NULL; - dev_kfree_skb(skb); - } - - /* - * ...and the same for transmit. - */ - for (i = 0, bdp = fep->tx_bd_base; i < fep->tx_ring; i++, bdp++) { - fep->tx_skbuff[i] = NULL; - CBDW_BUFADDR(bdp, virt_to_bus(NULL)); - CBDW_DATLEN(bdp, 0); - CBDW_SC(bdp, (i < fep->tx_ring - 1) ? 0 : BD_SC_WRAP); - } - - /* - * Enable big endian and don't care about SDMA FC. - */ - FW(fecp, fun_code, 0x78000000); - - /* - * Set MII speed. - */ - FW(fecp, mii_speed, fep->fec_phy_speed); - - /* - * Clear any outstanding interrupt. - */ - FW(fecp, ievent, 0xffc0); - FW(fecp, ivec, (fpi->fec_irq / 2) << 29); - - /* - * adjust to speed (only for DUET & RMII) - */ -#ifdef CONFIG_DUET - cptr = in_be32(&immap->im_cpm.cp_cptr); - switch (fpi->fec_no) { - case 0: - /* - * check if in RMII mode - */ - if ((cptr & 0x100) == 0) - break; - - if (speed == 10) - cptr |= 0x0000010; - else if (speed == 100) - cptr &= ~0x0000010; - break; - case 1: - /* - * check if in RMII mode - */ - if ((cptr & 0x80) == 0) - break; - - if (speed == 10) - cptr |= 0x0000008; - else if (speed == 100) - cptr &= ~0x0000008; - break; - default: - break; - } - out_be32(&immap->im_cpm.cp_cptr, cptr); -#endif - - FW(fecp, r_cntrl, FEC_RCNTRL_MII_MODE); /* MII enable */ - /* - * adjust to duplex mode - */ - if (duplex) { - FC(fecp, r_cntrl, FEC_RCNTRL_DRT); - FS(fecp, x_cntrl, FEC_TCNTRL_FDEN); /* FD enable */ - } else { - FS(fecp, r_cntrl, FEC_RCNTRL_DRT); - FC(fecp, x_cntrl, FEC_TCNTRL_FDEN); /* FD disable */ - } - - /* - * Enable interrupts we wish to service. - */ - FW(fecp, imask, FEC_ENET_TXF | FEC_ENET_TXB | - FEC_ENET_RXF | FEC_ENET_RXB); - - /* - * And last, enable the transmit and receive processing. - */ - FW(fecp, ecntrl, FEC_ECNTRL_PINMUX | FEC_ECNTRL_ETHER_EN); - FW(fecp, r_des_active, 0x01000000); -} - -void fec_stop(struct net_device *dev) -{ - struct fec_enet_private *fep = netdev_priv(dev); - fec_t *fecp = fep->fecp; - struct sk_buff *skb; - int i; - - if ((FR(fecp, ecntrl) & FEC_ECNTRL_ETHER_EN) == 0) - return; /* already down */ - - FW(fecp, x_cntrl, 0x01); /* Graceful transmit stop */ - for (i = 0; ((FR(fecp, ievent) & 0x10000000) == 0) && - i < FEC_RESET_DELAY; i++) - udelay(1); - - if (i == FEC_RESET_DELAY) - printk(KERN_WARNING DRV_MODULE_NAME - ": %s FEC timeout on graceful transmit stop\n", - dev->name); - /* - * Disable FEC. Let only MII interrupts. - */ - FW(fecp, imask, 0); - FW(fecp, ecntrl, ~FEC_ECNTRL_ETHER_EN); - - /* - * Reset SKB transmit buffers. - */ - for (i = 0; i < fep->tx_ring; i++) { - if ((skb = fep->tx_skbuff[i]) == NULL) - continue; - fep->tx_skbuff[i] = NULL; - dev_kfree_skb(skb); - } - - /* - * Reset SKB receive buffers - */ - for (i = 0; i < fep->rx_ring; i++) { - if ((skb = fep->rx_skbuff[i]) == NULL) - continue; - fep->rx_skbuff[i] = NULL; - dev_kfree_skb(skb); - } -} - -/* common receive function */ -static int fec_enet_rx_common(struct fec_enet_private *ep, - struct net_device *dev, int budget) -{ - fec_t *fecp = fep->fecp; - const struct fec_platform_info *fpi = fep->fpi; - cbd_t *bdp; - struct sk_buff *skb, *skbn, *skbt; - int received = 0; - __u16 pkt_len, sc; - int curidx; - - /* - * First, grab all of the stats for the incoming packet. - * These get messed up if we get called due to a busy condition. - */ - bdp = fep->cur_rx; - - /* clear RX status bits for napi*/ - if (fpi->use_napi) - FW(fecp, ievent, FEC_ENET_RXF | FEC_ENET_RXB); - - while (((sc = CBDR_SC(bdp)) & BD_ENET_RX_EMPTY) == 0) { - - curidx = bdp - fep->rx_bd_base; - - /* - * Since we have allocated space to hold a complete frame, - * the last indicator should be set. - */ - if ((sc & BD_ENET_RX_LAST) == 0) - printk(KERN_WARNING DRV_MODULE_NAME - ": %s rcv is not +last\n", - dev->name); - - /* - * Check for errors. - */ - if (sc & (BD_ENET_RX_LG | BD_ENET_RX_SH | BD_ENET_RX_CL | - BD_ENET_RX_NO | BD_ENET_RX_CR | BD_ENET_RX_OV)) { - fep->stats.rx_errors++; - /* Frame too long or too short. */ - if (sc & (BD_ENET_RX_LG | BD_ENET_RX_SH)) - fep->stats.rx_length_errors++; - /* Frame alignment */ - if (sc & (BD_ENET_RX_NO | BD_ENET_RX_CL)) - fep->stats.rx_frame_errors++; - /* CRC Error */ - if (sc & BD_ENET_RX_CR) - fep->stats.rx_crc_errors++; - /* FIFO overrun */ - if (sc & BD_ENET_RX_OV) - fep->stats.rx_crc_errors++; - - skbn = fep->rx_skbuff[curidx]; - BUG_ON(skbn == NULL); - - } else { - skb = fep->rx_skbuff[curidx]; - BUG_ON(skb == NULL); - - /* - * Process the incoming frame. - */ - fep->stats.rx_packets++; - pkt_len = CBDR_DATLEN(bdp) - 4; /* remove CRC */ - fep->stats.rx_bytes += pkt_len + 4; - - if (pkt_len <= fpi->rx_copybreak) { - /* +2 to make IP header L1 cache aligned */ - skbn = dev_alloc_skb(pkt_len + 2); - if (skbn != NULL) { - skb_reserve(skbn, 2); /* align IP header */ - skb_copy_from_linear_data(skb, - skbn->data, - pkt_len); - /* swap */ - skbt = skb; - skb = skbn; - skbn = skbt; - } - } else - skbn = dev_alloc_skb(ENET_RX_FRSIZE); - - if (skbn != NULL) { - skb_put(skb, pkt_len); /* Make room */ - skb->protocol = eth_type_trans(skb, dev); - received++; - if (!fpi->use_napi) - netif_rx(skb); - else - netif_receive_skb(skb); - } else { - printk(KERN_WARNING DRV_MODULE_NAME - ": %s Memory squeeze, dropping packet.\n", - dev->name); - fep->stats.rx_dropped++; - skbn = skb; - } - } - - fep->rx_skbuff[curidx] = skbn; - CBDW_BUFADDR(bdp, dma_map_single(NULL, skbn->data, - L1_CACHE_ALIGN(PKT_MAXBUF_SIZE), - DMA_FROM_DEVICE)); - CBDW_DATLEN(bdp, 0); - CBDW_SC(bdp, (sc & ~BD_ENET_RX_STATS) | BD_ENET_RX_EMPTY); - - /* - * Update BD pointer to next entry. - */ - if ((sc & BD_ENET_RX_WRAP) == 0) - bdp++; - else - bdp = fep->rx_bd_base; - - /* - * Doing this here will keep the FEC running while we process - * incoming frames. On a heavily loaded network, we should be - * able to keep up at the expense of system resources. - */ - FW(fecp, r_des_active, 0x01000000); - - if (received >= budget) - break; - - } - - fep->cur_rx = bdp; - - if (fpi->use_napi) { - if (received < budget) { - netif_rx_complete(dev, &fep->napi); - - /* enable RX interrupt bits */ - FS(fecp, imask, FEC_ENET_RXF | FEC_ENET_RXB); - } - } - - return received; -} - -static void fec_enet_tx(struct net_device *dev) -{ - struct fec_enet_private *fep = netdev_priv(dev); - cbd_t *bdp; - struct sk_buff *skb; - int dirtyidx, do_wake; - __u16 sc; - - spin_lock(&fep->lock); - bdp = fep->dirty_tx; - - do_wake = 0; - while (((sc = CBDR_SC(bdp)) & BD_ENET_TX_READY) == 0) { - - dirtyidx = bdp - fep->tx_bd_base; - - if (fep->tx_free == fep->tx_ring) - break; - - skb = fep->tx_skbuff[dirtyidx]; - - /* - * Check for errors. - */ - if (sc & (BD_ENET_TX_HB | BD_ENET_TX_LC | - BD_ENET_TX_RL | BD_ENET_TX_UN | BD_ENET_TX_CSL)) { - fep->stats.tx_errors++; - if (sc & BD_ENET_TX_HB) /* No heartbeat */ - fep->stats.tx_heartbeat_errors++; - if (sc & BD_ENET_TX_LC) /* Late collision */ - fep->stats.tx_window_errors++; - if (sc & BD_ENET_TX_RL) /* Retrans limit */ - fep->stats.tx_aborted_errors++; - if (sc & BD_ENET_TX_UN) /* Underrun */ - fep->stats.tx_fifo_errors++; - if (sc & BD_ENET_TX_CSL) /* Carrier lost */ - fep->stats.tx_carrier_errors++; - } else - fep->stats.tx_packets++; - - if (sc & BD_ENET_TX_READY) - printk(KERN_WARNING DRV_MODULE_NAME - ": %s HEY! Enet xmit interrupt and TX_READY.\n", - dev->name); - - /* - * Deferred means some collisions occurred during transmit, - * but we eventually sent the packet OK. - */ - if (sc & BD_ENET_TX_DEF) - fep->stats.collisions++; - - /* - * Free the sk buffer associated with this last transmit. - */ - dev_kfree_skb_irq(skb); - fep->tx_skbuff[dirtyidx] = NULL; - - /* - * Update pointer to next buffer descriptor to be transmitted. - */ - if ((sc & BD_ENET_TX_WRAP) == 0) - bdp++; - else - bdp = fep->tx_bd_base; - - /* - * Since we have freed up a buffer, the ring is no longer - * full. - */ - if (!fep->tx_free++) - do_wake = 1; - } - - fep->dirty_tx = bdp; - - spin_unlock(&fep->lock); - - if (do_wake && netif_queue_stopped(dev)) - netif_wake_queue(dev); -} - -/* - * The interrupt handler. - * This is called from the MPC core interrupt. - */ -static irqreturn_t -fec_enet_interrupt(int irq, void *dev_id) -{ - struct net_device *dev = dev_id; - struct fec_enet_private *fep; - const struct fec_platform_info *fpi; - fec_t *fecp; - __u32 int_events; - __u32 int_events_napi; - - if (unlikely(dev == NULL)) - return IRQ_NONE; - - fep = netdev_priv(dev); - fecp = fep->fecp; - fpi = fep->fpi; - - /* - * Get the interrupt events that caused us to be here. - */ - while ((int_events = FR(fecp, ievent) & FR(fecp, imask)) != 0) { - - if (!fpi->use_napi) - FW(fecp, ievent, int_events); - else { - int_events_napi = int_events & ~(FEC_ENET_RXF | FEC_ENET_RXB); - FW(fecp, ievent, int_events_napi); - } - - if ((int_events & (FEC_ENET_HBERR | FEC_ENET_BABR | - FEC_ENET_BABT | FEC_ENET_EBERR)) != 0) - printk(KERN_WARNING DRV_MODULE_NAME - ": %s FEC ERROR(s) 0x%x\n", - dev->name, int_events); - - if ((int_events & FEC_ENET_RXF) != 0) { - if (!fpi->use_napi) - fec_enet_rx_common(fep, dev, ~0); - else { - if (netif_rx_schedule_prep(dev, &fep->napi)) { - /* disable rx interrupts */ - FC(fecp, imask, FEC_ENET_RXF | FEC_ENET_RXB); - __netif_rx_schedule(dev, &fep->napi); - } else { - printk(KERN_ERR DRV_MODULE_NAME - ": %s driver bug! interrupt while in poll!\n", - dev->name); - FC(fecp, imask, FEC_ENET_RXF | FEC_ENET_RXB); - } - } - } - - if ((int_events & FEC_ENET_TXF) != 0) - fec_enet_tx(dev); - } - - return IRQ_HANDLED; -} - -/* This interrupt occurs when the PHY detects a link change. */ -static irqreturn_t -fec_mii_link_interrupt(int irq, void *dev_id) -{ - struct net_device *dev = dev_id; - struct fec_enet_private *fep; - const struct fec_platform_info *fpi; - - if (unlikely(dev == NULL)) - return IRQ_NONE; - - fep = netdev_priv(dev); - fpi = fep->fpi; - - if (!fpi->use_mdio) - return IRQ_NONE; - - /* - * Acknowledge the interrupt if possible. If we have not - * found the PHY yet we can't process or acknowledge the - * interrupt now. Instead we ignore this interrupt for now, - * which we can do since it is edge triggered. It will be - * acknowledged later by fec_enet_open(). - */ - if (!fep->phy) - return IRQ_NONE; - - fec_mii_ack_int(dev); - fec_mii_link_status_change_check(dev, 0); - - return IRQ_HANDLED; -} - - -/**********************************************************************************/ - -static int fec_enet_start_xmit(struct sk_buff *skb, struct net_device *dev) -{ - struct fec_enet_private *fep = netdev_priv(dev); - fec_t *fecp = fep->fecp; - cbd_t *bdp; - int curidx; - unsigned long flags; - - spin_lock_irqsave(&fep->tx_lock, flags); - - /* - * Fill in a Tx ring entry - */ - bdp = fep->cur_tx; - - if (!fep->tx_free || (CBDR_SC(bdp) & BD_ENET_TX_READY)) { - netif_stop_queue(dev); - spin_unlock_irqrestore(&fep->tx_lock, flags); - - /* - * Ooops. All transmit buffers are full. Bail out. - * This should not happen, since the tx queue should be stopped. - */ - printk(KERN_WARNING DRV_MODULE_NAME - ": %s tx queue full!.\n", dev->name); - return 1; - } - - curidx = bdp - fep->tx_bd_base; - /* - * Clear all of the status flags. - */ - CBDC_SC(bdp, BD_ENET_TX_STATS); - - /* - * Save skb pointer. - */ - fep->tx_skbuff[curidx] = skb; - - fep->stats.tx_bytes += skb->len; - - /* - * Push the data cache so the CPM does not get stale memory data. - */ - CBDW_BUFADDR(bdp, dma_map_single(NULL, skb->data, - skb->len, DMA_TO_DEVICE)); - CBDW_DATLEN(bdp, skb->len); - - dev->trans_start = jiffies; - - /* - * If this was the last BD in the ring, start at the beginning again. - */ - if ((CBDR_SC(bdp) & BD_ENET_TX_WRAP) == 0) - fep->cur_tx++; - else - fep->cur_tx = fep->tx_bd_base; - - if (!--fep->tx_free) - netif_stop_queue(dev); - - /* - * Trigger transmission start - */ - CBDS_SC(bdp, BD_ENET_TX_READY | BD_ENET_TX_INTR | - BD_ENET_TX_LAST | BD_ENET_TX_TC); - FW(fecp, x_des_active, 0x01000000); - - spin_unlock_irqrestore(&fep->tx_lock, flags); - - return 0; -} - -static void fec_timeout(struct net_device *dev) -{ - struct fec_enet_private *fep = netdev_priv(dev); - - fep->stats.tx_errors++; - - if (fep->tx_free) - netif_wake_queue(dev); - - /* check link status again */ - fec_mii_link_status_change_check(dev, 0); -} - -static int fec_enet_open(struct net_device *dev) -{ - struct fec_enet_private *fep = netdev_priv(dev); - const struct fec_platform_info *fpi = fep->fpi; - unsigned long flags; - - napi_enable(&fep->napi); - - /* Install our interrupt handler. */ - if (request_irq(fpi->fec_irq, fec_enet_interrupt, 0, "fec", dev) != 0) { - printk(KERN_ERR DRV_MODULE_NAME - ": %s Could not allocate FEC IRQ!", dev->name); - napi_disable(&fep->napi); - return -EINVAL; - } - - /* Install our phy interrupt handler */ - if (fpi->phy_irq != -1 && - request_irq(fpi->phy_irq, fec_mii_link_interrupt, 0, "fec-phy", - dev) != 0) { - printk(KERN_ERR DRV_MODULE_NAME - ": %s Could not allocate PHY IRQ!", dev->name); - free_irq(fpi->fec_irq, dev); - napi_disable(&fep->napi); - return -EINVAL; - } - - if (fpi->use_mdio) { - fec_mii_startup(dev); - netif_carrier_off(dev); - fec_mii_link_status_change_check(dev, 1); - } else { - spin_lock_irqsave(&fep->lock, flags); - fec_restart(dev, 1, 100); /* XXX this sucks */ - spin_unlock_irqrestore(&fep->lock, flags); - - netif_carrier_on(dev); - netif_start_queue(dev); - } - return 0; -} - -static int fec_enet_close(struct net_device *dev) -{ - struct fec_enet_private *fep = netdev_priv(dev); - const struct fec_platform_info *fpi = fep->fpi; - unsigned long flags; - - netif_stop_queue(dev); - napi_disable(&fep->napi); - netif_carrier_off(dev); - - if (fpi->use_mdio) - fec_mii_shutdown(dev); - - spin_lock_irqsave(&fep->lock, flags); - fec_stop(dev); - spin_unlock_irqrestore(&fep->lock, flags); - - /* release any irqs */ - if (fpi->phy_irq != -1) - free_irq(fpi->phy_irq, dev); - free_irq(fpi->fec_irq, dev); - - return 0; -} - -static struct net_device_stats *fec_enet_get_stats(struct net_device *dev) -{ - struct fec_enet_private *fep = netdev_priv(dev); - return &fep->stats; -} - -static int fec_enet_poll(struct napi_struct *napi, int budget) -{ - struct fec_enet_private *fep = container_of(napi, struct fec_enet_private, napi); - struct net_device *dev = fep->dev; - - return fec_enet_rx_common(fep, dev, budget); -} - -/*************************************************************************/ - -static void fec_get_drvinfo(struct net_device *dev, - struct ethtool_drvinfo *info) -{ - strcpy(info->driver, DRV_MODULE_NAME); - strcpy(info->version, DRV_MODULE_VERSION); -} - -static int fec_get_regs_len(struct net_device *dev) -{ - return sizeof(fec_t); -} - -static void fec_get_regs(struct net_device *dev, struct ethtool_regs *regs, - void *p) -{ - struct fec_enet_private *fep = netdev_priv(dev); - unsigned long flags; - - if (regs->len < sizeof(fec_t)) - return; - - regs->version = 0; - spin_lock_irqsave(&fep->lock, flags); - memcpy_fromio(p, fep->fecp, sizeof(fec_t)); - spin_unlock_irqrestore(&fep->lock, flags); -} - -static int fec_get_settings(struct net_device *dev, struct ethtool_cmd *cmd) -{ - struct fec_enet_private *fep = netdev_priv(dev); - unsigned long flags; - int rc; - - spin_lock_irqsave(&fep->lock, flags); - rc = mii_ethtool_gset(&fep->mii_if, cmd); - spin_unlock_irqrestore(&fep->lock, flags); - - return rc; -} - -static int fec_set_settings(struct net_device *dev, struct ethtool_cmd *cmd) -{ - struct fec_enet_private *fep = netdev_priv(dev); - unsigned long flags; - int rc; - - spin_lock_irqsave(&fep->lock, flags); - rc = mii_ethtool_sset(&fep->mii_if, cmd); - spin_unlock_irqrestore(&fep->lock, flags); - - return rc; -} - -static int fec_nway_reset(struct net_device *dev) -{ - struct fec_enet_private *fep = netdev_priv(dev); - return mii_nway_restart(&fep->mii_if); -} - -static __u32 fec_get_msglevel(struct net_device *dev) -{ - struct fec_enet_private *fep = netdev_priv(dev); - return fep->msg_enable; -} - -static void fec_set_msglevel(struct net_device *dev, __u32 value) -{ - struct fec_enet_private *fep = netdev_priv(dev); - fep->msg_enable = value; -} - -static const struct ethtool_ops fec_ethtool_ops = { - .get_drvinfo = fec_get_drvinfo, - .get_regs_len = fec_get_regs_len, - .get_settings = fec_get_settings, - .set_settings = fec_set_settings, - .nway_reset = fec_nway_reset, - .get_link = ethtool_op_get_link, - .get_msglevel = fec_get_msglevel, - .set_msglevel = fec_set_msglevel, - .set_tx_csum = ethtool_op_set_tx_csum, /* local! */ - .set_sg = ethtool_op_set_sg, - .get_regs = fec_get_regs, -}; - -static int fec_ioctl(struct net_device *dev, struct ifreq *rq, int cmd) -{ - struct fec_enet_private *fep = netdev_priv(dev); - struct mii_ioctl_data *mii = (struct mii_ioctl_data *)&rq->ifr_data; - unsigned long flags; - int rc; - - if (!netif_running(dev)) - return -EINVAL; - - spin_lock_irqsave(&fep->lock, flags); - rc = generic_mii_ioctl(&fep->mii_if, mii, cmd, NULL); - spin_unlock_irqrestore(&fep->lock, flags); - return rc; -} - -int fec_8xx_init_one(const struct fec_platform_info *fpi, - struct net_device **devp) -{ - immap_t *immap = (immap_t *) IMAP_ADDR; - static int fec_8xx_version_printed = 0; - struct net_device *dev = NULL; - struct fec_enet_private *fep = NULL; - fec_t *fecp = NULL; - int i; - int err = 0; - int registered = 0; - __u32 siel; - - *devp = NULL; - - switch (fpi->fec_no) { - case 0: - fecp = &((immap_t *) IMAP_ADDR)->im_cpm.cp_fec; - break; -#ifdef CONFIG_DUET - case 1: - fecp = &((immap_t *) IMAP_ADDR)->im_cpm.cp_fec2; - break; -#endif - default: - return -EINVAL; - } - - if (fec_8xx_version_printed++ == 0) - printk(KERN_INFO "%s", version); - - i = sizeof(*fep) + (sizeof(struct sk_buff **) * - (fpi->rx_ring + fpi->tx_ring)); - - dev = alloc_etherdev(i); - if (!dev) { - err = -ENOMEM; - goto err; - } - - fep = netdev_priv(dev); - fep->dev = dev; - - /* partial reset of FEC */ - fec_whack_reset(fecp); - - /* point rx_skbuff, tx_skbuff */ - fep->rx_skbuff = (struct sk_buff **)&fep[1]; - fep->tx_skbuff = fep->rx_skbuff + fpi->rx_ring; - - fep->fecp = fecp; - fep->fpi = fpi; - - /* init locks */ - spin_lock_init(&fep->lock); - spin_lock_init(&fep->tx_lock); - - /* - * Set the Ethernet address. - */ - for (i = 0; i < 6; i++) - dev->dev_addr[i] = fpi->macaddr[i]; - - fep->ring_base = dma_alloc_coherent(NULL, - (fpi->tx_ring + fpi->rx_ring) * - sizeof(cbd_t), &fep->ring_mem_addr, - GFP_KERNEL); - if (fep->ring_base == NULL) { - printk(KERN_ERR DRV_MODULE_NAME - ": %s dma alloc failed.\n", dev->name); - err = -ENOMEM; - goto err; - } - - /* - * Set receive and transmit descriptor base. - */ - fep->rx_bd_base = fep->ring_base; - fep->tx_bd_base = fep->rx_bd_base + fpi->rx_ring; - - /* initialize ring size variables */ - fep->tx_ring = fpi->tx_ring; - fep->rx_ring = fpi->rx_ring; - - /* SIU interrupt */ - if (fpi->phy_irq != -1 && - (fpi->phy_irq >= SIU_IRQ0 && fpi->phy_irq < SIU_LEVEL7)) { - - siel = in_be32(&immap->im_siu_conf.sc_siel); - if ((fpi->phy_irq & 1) == 0) - siel |= (0x80000000 >> fpi->phy_irq); - else - siel &= ~(0x80000000 >> (fpi->phy_irq & ~1)); - out_be32(&immap->im_siu_conf.sc_siel, siel); - } - - /* - * The FEC Ethernet specific entries in the device structure. - */ - dev->open = fec_enet_open; - dev->hard_start_xmit = fec_enet_start_xmit; - dev->tx_timeout = fec_timeout; - dev->watchdog_timeo = TX_TIMEOUT; - dev->stop = fec_enet_close; - dev->get_stats = fec_enet_get_stats; - dev->set_multicast_list = fec_set_multicast_list; - dev->set_mac_address = fec_set_mac_address; - netif_napi_add(dev, &fec->napi, - fec_enet_poll, fpi->napi_weight); - - dev->ethtool_ops = &fec_ethtool_ops; - dev->do_ioctl = fec_ioctl; - - fep->fec_phy_speed = - ((((fpi->sys_clk + 4999999) / 2500000) / 2) & 0x3F) << 1; - - init_timer(&fep->phy_timer_list); - - /* partial reset of FEC so that only MII works */ - FW(fecp, mii_speed, fep->fec_phy_speed); - FW(fecp, ievent, 0xffc0); - FW(fecp, ivec, (fpi->fec_irq / 2) << 29); - FW(fecp, imask, 0); - FW(fecp, r_cntrl, FEC_RCNTRL_MII_MODE); /* MII enable */ - FW(fecp, ecntrl, FEC_ECNTRL_PINMUX | FEC_ECNTRL_ETHER_EN); - - netif_carrier_off(dev); - - err = register_netdev(dev); - if (err != 0) - goto err; - registered = 1; - - if (fpi->use_mdio) { - fep->mii_if.dev = dev; - fep->mii_if.mdio_read = fec_mii_read; - fep->mii_if.mdio_write = fec_mii_write; - fep->mii_if.phy_id_mask = 0x1f; - fep->mii_if.reg_num_mask = 0x1f; - fep->mii_if.phy_id = fec_mii_phy_id_detect(dev); - } - - *devp = dev; - - return 0; - - err: - if (dev != NULL) { - if (fecp != NULL) - fec_whack_reset(fecp); - - if (registered) - unregister_netdev(dev); - - if (fep != NULL) { - if (fep->ring_base) - dma_free_coherent(NULL, - (fpi->tx_ring + - fpi->rx_ring) * - sizeof(cbd_t), fep->ring_base, - fep->ring_mem_addr); - } - free_netdev(dev); - } - return err; -} - -int fec_8xx_cleanup_one(struct net_device *dev) -{ - struct fec_enet_private *fep = netdev_priv(dev); - fec_t *fecp = fep->fecp; - const struct fec_platform_info *fpi = fep->fpi; - - fec_whack_reset(fecp); - - unregister_netdev(dev); - - dma_free_coherent(NULL, (fpi->tx_ring + fpi->rx_ring) * sizeof(cbd_t), - fep->ring_base, fep->ring_mem_addr); - - free_netdev(dev); - - return 0; -} - -/**************************************************************************************/ -/**************************************************************************************/ -/**************************************************************************************/ - -static int __init fec_8xx_init(void) -{ - return fec_8xx_platform_init(); -} - -static void __exit fec_8xx_cleanup(void) -{ - fec_8xx_platform_cleanup(); -} - -/**************************************************************************************/ -/**************************************************************************************/ -/**************************************************************************************/ - -module_init(fec_8xx_init); -module_exit(fec_8xx_cleanup); diff --git a/drivers/net/fec_8xx/fec_mii.c b/drivers/net/fec_8xx/fec_mii.c deleted file mode 100644 index 3b6ca29d31f..00000000000 --- a/drivers/net/fec_8xx/fec_mii.c +++ /dev/null @@ -1,418 +0,0 @@ -/* - * Fast Ethernet Controller (FEC) driver for Motorola MPC8xx. - * - * Copyright (c) 2003 Intracom S.A. - * by Pantelis Antoniou <panto@intracom.gr> - * - * Heavily based on original FEC driver by Dan Malek <dan@embeddededge.com> - * and modifications by Joakim Tjernlund <joakim.tjernlund@lumentis.se> - * - * Released under the GPL - */ - -#include <linux/module.h> -#include <linux/types.h> -#include <linux/kernel.h> -#include <linux/string.h> -#include <linux/ptrace.h> -#include <linux/errno.h> -#include <linux/ioport.h> -#include <linux/slab.h> -#include <linux/interrupt.h> -#include <linux/init.h> -#include <linux/delay.h> -#include <linux/netdevice.h> -#include <linux/etherdevice.h> -#include <linux/skbuff.h> -#include <linux/spinlock.h> -#include <linux/mii.h> -#include <linux/ethtool.h> -#include <linux/bitops.h> - -#include <asm/8xx_immap.h> -#include <asm/pgtable.h> -#include <asm/mpc8xx.h> -#include <asm/irq.h> -#include <asm/uaccess.h> -#include <asm/cpm1.h> - -/*************************************************/ - -#include "fec_8xx.h" - -/*************************************************/ - -/* Make MII read/write commands for the FEC. -*/ -#define mk_mii_read(REG) (0x60020000 | ((REG & 0x1f) << 18)) -#define mk_mii_write(REG, VAL) (0x50020000 | ((REG & 0x1f) << 18) | (VAL & 0xffff)) -#define mk_mii_end 0 - -/*************************************************/ - -/* XXX both FECs use the MII interface of FEC1 */ -static DEFINE_SPINLOCK(fec_mii_lock); - -#define FEC_MII_LOOPS 10000 - -int fec_mii_read(struct net_device *dev, int phy_id, int location) -{ - struct fec_enet_private *fep = netdev_priv(dev); - fec_t *fecp; - int i, ret = -1; - unsigned long flags; - - /* XXX MII interface is only connected to FEC1 */ - fecp = &((immap_t *) IMAP_ADDR)->im_cpm.cp_fec; - - spin_lock_irqsave(&fec_mii_lock, flags); - - if ((FR(fecp, r_cntrl) & FEC_RCNTRL_MII_MODE) == 0) { - FS(fecp, r_cntrl, FEC_RCNTRL_MII_MODE); /* MII enable */ - FS(fecp, ecntrl, FEC_ECNTRL_PINMUX | FEC_ECNTRL_ETHER_EN); - FW(fecp, ievent, FEC_ENET_MII); - } - - /* Add PHY address to register command. */ - FW(fecp, mii_speed, fep->fec_phy_speed); - FW(fecp, mii_data, (phy_id << 23) | mk_mii_read(location)); - - for (i = 0; i < FEC_MII_LOOPS; i++) - if ((FR(fecp, ievent) & FEC_ENET_MII) != 0) - break; - - if (i < FEC_MII_LOOPS) { - FW(fecp, ievent, FEC_ENET_MII); - ret = FR(fecp, mii_data) & 0xffff; - } - - spin_unlock_irqrestore(&fec_mii_lock, flags); - - return ret; -} - -void fec_mii_write(struct net_device *dev, int phy_id, int location, int value) -{ - struct fec_enet_private *fep = netdev_priv(dev); - fec_t *fecp; - unsigned long flags; - int i; - - /* XXX MII interface is only connected to FEC1 */ - fecp = &((immap_t *) IMAP_ADDR)->im_cpm.cp_fec; - - spin_lock_irqsave(&fec_mii_lock, flags); - - if ((FR(fecp, r_cntrl) & FEC_RCNTRL_MII_MODE) == 0) { - FS(fecp, r_cntrl, FEC_RCNTRL_MII_MODE); /* MII enable */ - FS(fecp, ecntrl, FEC_ECNTRL_PINMUX | FEC_ECNTRL_ETHER_EN); - FW(fecp, ievent, FEC_ENET_MII); - } - - /* Add PHY address to register command. */ - FW(fecp, mii_speed, fep->fec_phy_speed); /* always adapt mii speed */ - FW(fecp, mii_data, (phy_id << 23) | mk_mii_write(location, value)); - - for (i = 0; i < FEC_MII_LOOPS; i++) - if ((FR(fecp, ievent) & FEC_ENET_MII) != 0) - break; - - if (i < FEC_MII_LOOPS) - FW(fecp, ievent, FEC_ENET_MII); - - spin_unlock_irqrestore(&fec_mii_lock, flags); -} - -/*************************************************/ - -#ifdef CONFIG_FEC_8XX_GENERIC_PHY - -/* - * Generic PHY support. - * Should work for all PHYs, but link change is detected by polling - */ - -static void generic_timer_callback(unsigned long data) -{ - struct net_device *dev = (struct net_device *)data; - struct fec_enet_private *fep = netdev_priv(dev); - - fep->phy_timer_list.expires = jiffies + HZ / 2; - - add_timer(&fep->phy_timer_list); - - fec_mii_link_status_change_check(dev, 0); -} - -static void generic_startup(struct net_device *dev) -{ - struct fec_enet_private *fep = netdev_priv(dev); - - fep->phy_timer_list.expires = jiffies + HZ / 2; /* every 500ms */ - fep->phy_timer_list.data = (unsigned long)dev; - fep->phy_timer_list.function = generic_timer_callback; - add_timer(&fep->phy_timer_list); -} - -static void generic_shutdown(struct net_device *dev) -{ - struct fec_enet_private *fep = netdev_priv(dev); - - del_timer_sync(&fep->phy_timer_list); -} - -#endif - -#ifdef CONFIG_FEC_8XX_DM9161_PHY - -/* ------------------------------------------------------------------------- */ -/* The Davicom DM9161 is used on the NETTA board */ - -/* register definitions */ - -#define MII_DM9161_ACR 16 /* Aux. Config Register */ -#define MII_DM9161_ACSR 17 /* Aux. Config/Status Register */ -#define MII_DM9161_10TCSR 18 /* 10BaseT Config/Status Reg. */ -#define MII_DM9161_INTR 21 /* Interrupt Register */ -#define MII_DM9161_RECR 22 /* Receive Error Counter Reg. */ -#define MII_DM9161_DISCR 23 /* Disconnect Counter Register */ - -static void dm9161_startup(struct net_device *dev) -{ - struct fec_enet_private *fep = netdev_priv(dev); - - fec_mii_write(dev, fep->mii_if.phy_id, MII_DM9161_INTR, 0x0000); -} - -static void dm9161_ack_int(struct net_device *dev) -{ - struct fec_enet_private *fep = netdev_priv(dev); - - fec_mii_read(dev, fep->mii_if.phy_id, MII_DM9161_INTR); -} - -static void dm9161_shutdown(struct net_device *dev) -{ - struct fec_enet_private *fep = netdev_priv(dev); - - fec_mii_write(dev, fep->mii_if.phy_id, MII_DM9161_INTR, 0x0f00); -} - -#endif - -#ifdef CONFIG_FEC_8XX_LXT971_PHY - -/* Support for LXT971/972 PHY */ - -#define MII_LXT971_PCR 16 /* Port Control Register */ -#define MII_LXT971_SR2 17 /* Status Register 2 */ -#define MII_LXT971_IER 18 /* Interrupt Enable Register */ -#define MII_LXT971_ISR 19 /* Interrupt Status Register */ -#define MII_LXT971_LCR 20 /* LED Control Register */ -#define MII_LXT971_TCR 30 /* Transmit Control Register */ - -static void lxt971_startup(struct net_device *dev) -{ - struct fec_enet_private *fep = netdev_priv(dev); - - fec_mii_write(dev, fep->mii_if.phy_id, MII_LXT971_IER, 0x00F2); -} - -static void lxt971_ack_int(struct net_device *dev) -{ - struct fec_enet_private *fep = netdev_priv(dev); - - fec_mii_read(dev, fep->mii_if.phy_id, MII_LXT971_ISR); -} - -static void lxt971_shutdown(struct net_device *dev) -{ - struct fec_enet_private *fep = netdev_priv(dev); - - fec_mii_write(dev, fep->mii_if.phy_id, MII_LXT971_IER, 0x0000); -} -#endif - -/**********************************************************************************/ - -static const struct phy_info phy_info[] = { -#ifdef CONFIG_FEC_8XX_DM9161_PHY - { - .id = 0x00181b88, - .name = "DM9161", - .startup = dm9161_startup, - .ack_int = dm9161_ack_int, - .shutdown = dm9161_shutdown, - }, -#endif -#ifdef CONFIG_FEC_8XX_LXT971_PHY - { - .id = 0x0001378e, - .name = "LXT971/972", - .startup = lxt971_startup, - .ack_int = lxt971_ack_int, - .shutdown = lxt971_shutdown, - }, -#endif -#ifdef CONFIG_FEC_8XX_GENERIC_PHY - { - .id = 0, - .name = "GENERIC", - .startup = generic_startup, - .shutdown = generic_shutdown, - }, -#endif -}; - -/**********************************************************************************/ - -int fec_mii_phy_id_detect(struct net_device *dev) -{ - struct fec_enet_private *fep = netdev_priv(dev); - const struct fec_platform_info *fpi = fep->fpi; - int i, r, start, end, phytype, physubtype; - const struct phy_info *phy; - int phy_hwid, phy_id; - - /* if no MDIO */ - if (fpi->use_mdio == 0) - return -1; - - phy_hwid = -1; - fep->phy = NULL; - - /* auto-detect? */ - if (fpi->phy_addr == -1) { - start = 0; - end = 32; - } else { /* direct */ - start = fpi->phy_addr; - end = start + 1; - } - - for (phy_id = start; phy_id < end; phy_id++) { - r = fec_mii_read(dev, phy_id, MII_PHYSID1); - if (r == -1 || (phytype = (r & 0xffff)) == 0xffff) - continue; - r = fec_mii_read(dev, phy_id, MII_PHYSID2); - if (r == -1 || (physubtype = (r & 0xffff)) == 0xffff) - continue; - phy_hwid = (phytype << 16) | physubtype; - if (phy_hwid != -1) - break; - } - - if (phy_hwid == -1) { - printk(KERN_ERR DRV_MODULE_NAME - ": %s No PHY detected!\n", dev->name); - return -1; - } - - for (i = 0, phy = phy_info; i < ARRAY_SIZE(phy_info); i++, phy++) - if (phy->id == (phy_hwid >> 4) || phy->id == 0) - break; - - if (i >= ARRAY_SIZE(phy_info)) { - printk(KERN_ERR DRV_MODULE_NAME - ": %s PHY id 0x%08x is not supported!\n", - dev->name, phy_hwid); - return -1; - } - - fep->phy = phy; - - printk(KERN_INFO DRV_MODULE_NAME - ": %s Phy @ 0x%x, type %s (0x%08x)\n", - dev->name, phy_id, fep->phy->name, phy_hwid); - - return phy_id; -} - -void fec_mii_startup(struct net_device *dev) -{ - struct fec_enet_private *fep = netdev_priv(dev); - const struct fec_platform_info *fpi = fep->fpi; - - if (!fpi->use_mdio || fep->phy == NULL) - return; - - if (fep->phy->startup == NULL) - return; - - (*fep->phy->startup) (dev); -} - -void fec_mii_shutdown(struct net_device *dev) -{ - struct fec_enet_private *fep = netdev_priv(dev); - const struct fec_platform_info *fpi = fep->fpi; - - if (!fpi->use_mdio || fep->phy == NULL) - return; - - if (fep->phy->shutdown == NULL) - return; - - (*fep->phy->shutdown) (dev); -} - -void fec_mii_ack_int(struct net_device *dev) -{ - struct fec_enet_private *fep = netdev_priv(dev); - const struct fec_platform_info *fpi = fep->fpi; - - if (!fpi->use_mdio || fep->phy == NULL) - return; - - if (fep->phy->ack_int == NULL) - return; - - (*fep->phy->ack_int) (dev); -} - -/* helper function */ -static int mii_negotiated(struct mii_if_info *mii) -{ - int advert, lpa, val; - - if (!mii_link_ok(mii)) - return 0; - - val = (*mii->mdio_read) (mii->dev, mii->phy_id, MII_BMSR); - if ((val & BMSR_ANEGCOMPLETE) == 0) - return 0; - - advert = (*mii->mdio_read) (mii->dev, mii->phy_id, MII_ADVERTISE); - lpa = (*mii->mdio_read) (mii->dev, mii->phy_id, MII_LPA); - - return mii_nway_result(advert & lpa); -} - -void fec_mii_link_status_change_check(struct net_device *dev, int init_media) -{ - struct fec_enet_private *fep = netdev_priv(dev); - unsigned int media; - unsigned long flags; - - if (mii_check_media(&fep->mii_if, netif_msg_link(fep), init_media) == 0) - return; - - media = mii_negotiated(&fep->mii_if); - - if (netif_carrier_ok(dev)) { - spin_lock_irqsave(&fep->lock, flags); - fec_restart(dev, !!(media & ADVERTISE_FULL), - (media & (ADVERTISE_100FULL | ADVERTISE_100HALF)) ? - 100 : 10); - spin_unlock_irqrestore(&fep->lock, flags); - - netif_start_queue(dev); - } else { - netif_stop_queue(dev); - - spin_lock_irqsave(&fep->lock, flags); - fec_stop(dev); - spin_unlock_irqrestore(&fep->lock, flags); - - } -} |