upstream u-boot with additional patches for our devices/boards:
https://lists.denx.de/pipermail/u-boot/2017-March/282789.html (AXP crashes) ;
Gbit ethernet patch for some LIME2 revisions ;
with SPI flash support
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
536 lines
16 KiB
536 lines
16 KiB
/*
|
|
* LiMon Monitor (LiMon) - Network.
|
|
*
|
|
* Copyright 1994 - 2000 Neil Russell.
|
|
* (See License)
|
|
*
|
|
*
|
|
* History
|
|
* 9/16/00 bor adapted to TQM823L/STK8xxL board, RARP/TFTP boot added
|
|
*/
|
|
|
|
#ifndef __NET_H__
|
|
#define __NET_H__
|
|
|
|
#if defined(CONFIG_8xx)
|
|
#include <commproc.h>
|
|
# if !defined(CONFIG_NET_MULTI)
|
|
# if defined(FEC_ENET) || defined(SCC_ENET)
|
|
# define CONFIG_NET_MULTI
|
|
# endif
|
|
# endif
|
|
#endif /* CONFIG_8xx */
|
|
|
|
#if defined(CONFIG_MPC5xxx)
|
|
# if !defined(CONFIG_NET_MULTI)
|
|
# if defined(CONFIG_MPC5xxx_FEC)
|
|
# define CONFIG_NET_MULTI
|
|
# endif
|
|
# endif
|
|
#endif /* CONFIG_MPC5xxx */
|
|
|
|
#if !defined(CONFIG_NET_MULTI) && defined(CONFIG_CPM2)
|
|
#include <config.h>
|
|
#if defined(CONFIG_ETHER_ON_FCC)
|
|
#if defined(CONFIG_ETHER_ON_SCC)
|
|
#error "Ethernet not correctly defined"
|
|
#endif /* CONFIG_ETHER_ON_SCC */
|
|
#define CONFIG_NET_MULTI
|
|
#if (CONFIG_ETHER_INDEX == 1)
|
|
#define CONFIG_ETHER_ON_FCC1
|
|
# define CONFIG_SYS_CMXFCR_MASK1 CONFIG_SYS_CMXFCR_MASK
|
|
# define CONFIG_SYS_CMXFCR_VALUE1 CONFIG_SYS_CMXFCR_VALUE
|
|
#elif (CONFIG_ETHER_INDEX == 2)
|
|
#define CONFIG_ETHER_ON_FCC2
|
|
# define CONFIG_SYS_CMXFCR_MASK2 CONFIG_SYS_CMXFCR_MASK
|
|
# define CONFIG_SYS_CMXFCR_VALUE2 CONFIG_SYS_CMXFCR_VALUE
|
|
#elif (CONFIG_ETHER_INDEX == 3)
|
|
#define CONFIG_ETHER_ON_FCC3
|
|
# define CONFIG_SYS_CMXFCR_MASK3 CONFIG_SYS_CMXFCR_MASK
|
|
# define CONFIG_SYS_CMXFCR_VALUE3 CONFIG_SYS_CMXFCR_VALUE
|
|
#endif /* CONFIG_ETHER_INDEX */
|
|
#endif /* CONFIG_ETHER_ON_FCC */
|
|
#endif /* !CONFIG_NET_MULTI && CONFIG_8260 */
|
|
|
|
#include <asm/byteorder.h> /* for nton* / ntoh* stuff */
|
|
|
|
|
|
/*
|
|
* The number of receive packet buffers, and the required packet buffer
|
|
* alignment in memory.
|
|
*
|
|
*/
|
|
|
|
#ifdef CONFIG_SYS_RX_ETH_BUFFER
|
|
# define PKTBUFSRX CONFIG_SYS_RX_ETH_BUFFER
|
|
#else
|
|
# define PKTBUFSRX 4
|
|
#endif
|
|
|
|
#define PKTALIGN 32
|
|
|
|
typedef ulong IPaddr_t;
|
|
|
|
|
|
/*
|
|
* The current receive packet handler. Called with a pointer to the
|
|
* application packet, and a protocol type (PORT_BOOTPC or PORT_TFTP).
|
|
* All other packets are dealt with without calling the handler.
|
|
*/
|
|
typedef void rxhand_f(uchar *, unsigned, unsigned, unsigned);
|
|
|
|
/*
|
|
* A timeout handler. Called after time interval has expired.
|
|
*/
|
|
typedef void thand_f(void);
|
|
|
|
#define NAMESIZE 16
|
|
|
|
enum eth_state_t {
|
|
ETH_STATE_INIT,
|
|
ETH_STATE_PASSIVE,
|
|
ETH_STATE_ACTIVE
|
|
};
|
|
|
|
struct eth_device {
|
|
char name[NAMESIZE];
|
|
unsigned char enetaddr[6];
|
|
int iobase;
|
|
int state;
|
|
|
|
int (*init) (struct eth_device*, bd_t*);
|
|
int (*send) (struct eth_device*, volatile void* packet, int length);
|
|
int (*recv) (struct eth_device*);
|
|
void (*halt) (struct eth_device*);
|
|
#ifdef CONFIG_MCAST_TFTP
|
|
int (*mcast) (struct eth_device*, u32 ip, u8 set);
|
|
#endif
|
|
int (*write_hwaddr) (struct eth_device*);
|
|
struct eth_device *next;
|
|
void *priv;
|
|
};
|
|
|
|
extern int eth_initialize(bd_t *bis); /* Initialize network subsystem */
|
|
extern int eth_register(struct eth_device* dev);/* Register network device */
|
|
extern void eth_try_another(int first_restart); /* Change the device */
|
|
#ifdef CONFIG_NET_MULTI
|
|
extern void eth_set_current(void); /* set nterface to ethcur var */
|
|
#endif
|
|
extern struct eth_device *eth_get_dev(void); /* get the current device MAC */
|
|
extern struct eth_device *eth_get_dev_by_name(const char *devname);
|
|
extern struct eth_device *eth_get_dev_by_index(int index); /* get dev @ index */
|
|
extern int eth_get_dev_index (void); /* get the device index */
|
|
extern void eth_parse_enetaddr(const char *addr, uchar *enetaddr);
|
|
extern int eth_getenv_enetaddr(char *name, uchar *enetaddr);
|
|
extern int eth_setenv_enetaddr(char *name, const uchar *enetaddr);
|
|
extern int eth_getenv_enetaddr_by_index(int index, uchar *enetaddr);
|
|
|
|
extern int usb_eth_initialize(bd_t *bi);
|
|
extern int eth_init(bd_t *bis); /* Initialize the device */
|
|
extern int eth_send(volatile void *packet, int length); /* Send a packet */
|
|
|
|
#ifdef CONFIG_API
|
|
extern int eth_receive(volatile void *packet, int length); /* Receive a packet*/
|
|
#endif
|
|
extern int eth_rx(void); /* Check for received packets */
|
|
extern void eth_halt(void); /* stop SCC */
|
|
extern char *eth_get_name(void); /* get name of current device */
|
|
|
|
#ifdef CONFIG_MCAST_TFTP
|
|
int eth_mcast_join( IPaddr_t mcast_addr, u8 join);
|
|
u32 ether_crc (size_t len, unsigned char const *p);
|
|
#endif
|
|
|
|
|
|
/**********************************************************************/
|
|
/*
|
|
* Protocol headers.
|
|
*/
|
|
|
|
/*
|
|
* Ethernet header
|
|
*/
|
|
typedef struct {
|
|
uchar et_dest[6]; /* Destination node */
|
|
uchar et_src[6]; /* Source node */
|
|
ushort et_protlen; /* Protocol or length */
|
|
uchar et_dsap; /* 802 DSAP */
|
|
uchar et_ssap; /* 802 SSAP */
|
|
uchar et_ctl; /* 802 control */
|
|
uchar et_snap1; /* SNAP */
|
|
uchar et_snap2;
|
|
uchar et_snap3;
|
|
ushort et_prot; /* 802 protocol */
|
|
} Ethernet_t;
|
|
|
|
#define ETHER_HDR_SIZE 14 /* Ethernet header size */
|
|
#define E802_HDR_SIZE 22 /* 802 ethernet header size */
|
|
|
|
/*
|
|
* Ethernet header
|
|
*/
|
|
typedef struct {
|
|
uchar vet_dest[6]; /* Destination node */
|
|
uchar vet_src[6]; /* Source node */
|
|
ushort vet_vlan_type; /* PROT_VLAN */
|
|
ushort vet_tag; /* TAG of VLAN */
|
|
ushort vet_type; /* protocol type */
|
|
} VLAN_Ethernet_t;
|
|
|
|
#define VLAN_ETHER_HDR_SIZE 18 /* VLAN Ethernet header size */
|
|
|
|
#define PROT_IP 0x0800 /* IP protocol */
|
|
#define PROT_ARP 0x0806 /* IP ARP protocol */
|
|
#define PROT_RARP 0x8035 /* IP ARP protocol */
|
|
#define PROT_VLAN 0x8100 /* IEEE 802.1q protocol */
|
|
|
|
#define IPPROTO_ICMP 1 /* Internet Control Message Protocol */
|
|
#define IPPROTO_UDP 17 /* User Datagram Protocol */
|
|
|
|
/*
|
|
* Internet Protocol (IP) header.
|
|
*/
|
|
typedef struct {
|
|
uchar ip_hl_v; /* header length and version */
|
|
uchar ip_tos; /* type of service */
|
|
ushort ip_len; /* total length */
|
|
ushort ip_id; /* identification */
|
|
ushort ip_off; /* fragment offset field */
|
|
uchar ip_ttl; /* time to live */
|
|
uchar ip_p; /* protocol */
|
|
ushort ip_sum; /* checksum */
|
|
IPaddr_t ip_src; /* Source IP address */
|
|
IPaddr_t ip_dst; /* Destination IP address */
|
|
ushort udp_src; /* UDP source port */
|
|
ushort udp_dst; /* UDP destination port */
|
|
ushort udp_len; /* Length of UDP packet */
|
|
ushort udp_xsum; /* Checksum */
|
|
} IP_t;
|
|
|
|
#define IP_OFFS 0x1fff /* ip offset *= 8 */
|
|
#define IP_FLAGS 0xe000 /* first 3 bits */
|
|
#define IP_FLAGS_RES 0x8000 /* reserved */
|
|
#define IP_FLAGS_DFRAG 0x4000 /* don't fragments */
|
|
#define IP_FLAGS_MFRAG 0x2000 /* more fragments */
|
|
|
|
#define IP_HDR_SIZE_NO_UDP (sizeof (IP_t) - 8)
|
|
#define IP_HDR_SIZE (sizeof (IP_t))
|
|
|
|
|
|
/*
|
|
* Address Resolution Protocol (ARP) header.
|
|
*/
|
|
typedef struct
|
|
{
|
|
ushort ar_hrd; /* Format of hardware address */
|
|
# define ARP_ETHER 1 /* Ethernet hardware address */
|
|
ushort ar_pro; /* Format of protocol address */
|
|
uchar ar_hln; /* Length of hardware address */
|
|
uchar ar_pln; /* Length of protocol address */
|
|
ushort ar_op; /* Operation */
|
|
# define ARPOP_REQUEST 1 /* Request to resolve address */
|
|
# define ARPOP_REPLY 2 /* Response to previous request */
|
|
|
|
# define RARPOP_REQUEST 3 /* Request to resolve address */
|
|
# define RARPOP_REPLY 4 /* Response to previous request */
|
|
|
|
/*
|
|
* The remaining fields are variable in size, according to
|
|
* the sizes above, and are defined as appropriate for
|
|
* specific hardware/protocol combinations.
|
|
*/
|
|
uchar ar_data[0];
|
|
#if 0
|
|
uchar ar_sha[]; /* Sender hardware address */
|
|
uchar ar_spa[]; /* Sender protocol address */
|
|
uchar ar_tha[]; /* Target hardware address */
|
|
uchar ar_tpa[]; /* Target protocol address */
|
|
#endif /* 0 */
|
|
} ARP_t;
|
|
|
|
#define ARP_HDR_SIZE (8+20) /* Size assuming ethernet */
|
|
|
|
/*
|
|
* ICMP stuff (just enough to handle (host) redirect messages)
|
|
*/
|
|
#define ICMP_ECHO_REPLY 0 /* Echo reply */
|
|
#define ICMP_REDIRECT 5 /* Redirect (change route) */
|
|
#define ICMP_ECHO_REQUEST 8 /* Echo request */
|
|
|
|
/* Codes for REDIRECT. */
|
|
#define ICMP_REDIR_NET 0 /* Redirect Net */
|
|
#define ICMP_REDIR_HOST 1 /* Redirect Host */
|
|
|
|
typedef struct icmphdr {
|
|
uchar type;
|
|
uchar code;
|
|
ushort checksum;
|
|
union {
|
|
struct {
|
|
ushort id;
|
|
ushort sequence;
|
|
} echo;
|
|
ulong gateway;
|
|
struct {
|
|
ushort __unused;
|
|
ushort mtu;
|
|
} frag;
|
|
} un;
|
|
} ICMP_t;
|
|
|
|
|
|
/*
|
|
* Maximum packet size; used to allocate packet storage.
|
|
* TFTP packets can be 524 bytes + IP header + ethernet header.
|
|
* Lets be conservative, and go for 38 * 16. (Must also be
|
|
* a multiple of 32 bytes).
|
|
*/
|
|
/*
|
|
* AS.HARNOIS : Better to set PKTSIZE to maximum size because
|
|
* traffic type is not always controlled
|
|
* maximum packet size = 1518
|
|
* maximum packet size and multiple of 32 bytes = 1536
|
|
*/
|
|
#define PKTSIZE 1518
|
|
#define PKTSIZE_ALIGN 1536
|
|
/*#define PKTSIZE 608*/
|
|
|
|
/*
|
|
* Maximum receive ring size; that is, the number of packets
|
|
* we can buffer before overflow happens. Basically, this just
|
|
* needs to be enough to prevent a packet being discarded while
|
|
* we are processing the previous one.
|
|
*/
|
|
#define RINGSZ 4
|
|
#define RINGSZ_LOG2 2
|
|
|
|
/**********************************************************************/
|
|
/*
|
|
* Globals.
|
|
*
|
|
* Note:
|
|
*
|
|
* All variables of type IPaddr_t are stored in NETWORK byte order
|
|
* (big endian).
|
|
*/
|
|
|
|
/* net.c */
|
|
/** BOOTP EXTENTIONS **/
|
|
extern IPaddr_t NetOurGatewayIP; /* Our gateway IP addresse */
|
|
extern IPaddr_t NetOurSubnetMask; /* Our subnet mask (0 = unknown)*/
|
|
extern IPaddr_t NetOurDNSIP; /* Our Domain Name Server (0 = unknown)*/
|
|
#if defined(CONFIG_BOOTP_DNS2)
|
|
extern IPaddr_t NetOurDNS2IP; /* Our 2nd Domain Name Server (0 = unknown)*/
|
|
#endif
|
|
extern char NetOurNISDomain[32]; /* Our NIS domain */
|
|
extern char NetOurHostName[32]; /* Our hostname */
|
|
extern char NetOurRootPath[64]; /* Our root path */
|
|
extern ushort NetBootFileSize; /* Our boot file size in blocks */
|
|
/** END OF BOOTP EXTENTIONS **/
|
|
extern ulong NetBootFileXferSize; /* size of bootfile in bytes */
|
|
extern uchar NetOurEther[6]; /* Our ethernet address */
|
|
extern uchar NetServerEther[6]; /* Boot server enet address */
|
|
extern IPaddr_t NetOurIP; /* Our IP addr (0 = unknown) */
|
|
extern IPaddr_t NetServerIP; /* Server IP addr (0 = unknown) */
|
|
extern volatile uchar * NetTxPacket; /* THE transmit packet */
|
|
extern volatile uchar * NetRxPackets[PKTBUFSRX];/* Receive packets */
|
|
extern volatile uchar * NetRxPacket; /* Current receive packet */
|
|
extern int NetRxPacketLen; /* Current rx packet length */
|
|
extern unsigned NetIPID; /* IP ID (counting) */
|
|
extern uchar NetBcastAddr[6]; /* Ethernet boardcast address */
|
|
extern uchar NetEtherNullAddr[6];
|
|
|
|
#define VLAN_NONE 4095 /* untagged */
|
|
#define VLAN_IDMASK 0x0fff /* mask of valid vlan id */
|
|
extern ushort NetOurVLAN; /* Our VLAN */
|
|
extern ushort NetOurNativeVLAN; /* Our Native VLAN */
|
|
|
|
extern uchar NetCDPAddr[6]; /* Ethernet CDP address */
|
|
extern ushort CDPNativeVLAN; /* CDP returned native VLAN */
|
|
extern ushort CDPApplianceVLAN; /* CDP returned appliance VLAN */
|
|
|
|
extern int NetState; /* Network loop state */
|
|
#define NETLOOP_CONTINUE 1
|
|
#define NETLOOP_RESTART 2
|
|
#define NETLOOP_SUCCESS 3
|
|
#define NETLOOP_FAIL 4
|
|
|
|
#ifdef CONFIG_NET_MULTI
|
|
extern int NetRestartWrap; /* Tried all network devices */
|
|
#endif
|
|
|
|
typedef enum { BOOTP, RARP, ARP, TFTP, DHCP, PING, DNS, NFS, CDP, NETCONS, SNTP } proto_t;
|
|
|
|
/* from net/net.c */
|
|
extern char BootFile[128]; /* Boot File name */
|
|
|
|
#if defined(CONFIG_CMD_DNS)
|
|
extern char *NetDNSResolve; /* The host to resolve */
|
|
extern char *NetDNSenvvar; /* the env var to put the ip into */
|
|
#endif
|
|
|
|
#if defined(CONFIG_CMD_PING)
|
|
extern IPaddr_t NetPingIP; /* the ip address to ping */
|
|
#endif
|
|
|
|
#if defined(CONFIG_CMD_CDP)
|
|
/* when CDP completes these hold the return values */
|
|
extern ushort CDPNativeVLAN;
|
|
extern ushort CDPApplianceVLAN;
|
|
#endif
|
|
|
|
#if defined(CONFIG_CMD_SNTP)
|
|
extern IPaddr_t NetNtpServerIP; /* the ip address to NTP */
|
|
extern int NetTimeOffset; /* offset time from UTC */
|
|
#endif
|
|
|
|
/* Initialize the network adapter */
|
|
extern int NetLoop(proto_t);
|
|
|
|
/* Shutdown adapters and cleanup */
|
|
extern void NetStop(void);
|
|
|
|
/* Load failed. Start again. */
|
|
extern void NetStartAgain(void);
|
|
|
|
/* Get size of the ethernet header when we send */
|
|
extern int NetEthHdrSize(void);
|
|
|
|
/* Set ethernet header; returns the size of the header */
|
|
extern int NetSetEther(volatile uchar *, uchar *, uint);
|
|
|
|
/* Set IP header */
|
|
extern void NetSetIP(volatile uchar *, IPaddr_t, int, int, int);
|
|
|
|
/* Checksum */
|
|
extern int NetCksumOk(uchar *, int); /* Return true if cksum OK */
|
|
extern uint NetCksum(uchar *, int); /* Calculate the checksum */
|
|
|
|
/* Set callbacks */
|
|
extern void NetSetHandler(rxhand_f *); /* Set RX packet handler */
|
|
extern void NetSetTimeout(ulong, thand_f *);/* Set timeout handler */
|
|
|
|
/* Transmit "NetTxPacket" */
|
|
extern void NetSendPacket(volatile uchar *, int);
|
|
|
|
/* Transmit UDP packet, performing ARP request if needed */
|
|
extern int NetSendUDPPacket(uchar *ether, IPaddr_t dest, int dport, int sport, int len);
|
|
|
|
/* Processes a received packet */
|
|
extern void NetReceive(volatile uchar *, int);
|
|
|
|
/*
|
|
* The following functions are a bit ugly, but necessary to deal with
|
|
* alignment restrictions on ARM.
|
|
*
|
|
* We're using inline functions, which had the smallest memory
|
|
* footprint in our tests.
|
|
*/
|
|
/* return IP *in network byteorder* */
|
|
static inline IPaddr_t NetReadIP(volatile void *from)
|
|
{
|
|
IPaddr_t ip;
|
|
memcpy((void*)&ip, (void*)from, sizeof(ip));
|
|
return ip;
|
|
}
|
|
|
|
/* return ulong *in network byteorder* */
|
|
static inline ulong NetReadLong(ulong *from)
|
|
{
|
|
ulong l;
|
|
memcpy((void*)&l, (void*)from, sizeof(l));
|
|
return l;
|
|
}
|
|
|
|
/* write IP *in network byteorder* */
|
|
static inline void NetWriteIP(void *to, IPaddr_t ip)
|
|
{
|
|
memcpy(to, (void*)&ip, sizeof(ip));
|
|
}
|
|
|
|
/* copy IP */
|
|
static inline void NetCopyIP(volatile void *to, void *from)
|
|
{
|
|
memcpy((void*)to, from, sizeof(IPaddr_t));
|
|
}
|
|
|
|
/* copy ulong */
|
|
static inline void NetCopyLong(ulong *to, ulong *from)
|
|
{
|
|
memcpy((void*)to, (void*)from, sizeof(ulong));
|
|
}
|
|
|
|
/**
|
|
* is_zero_ether_addr - Determine if give Ethernet address is all zeros.
|
|
* @addr: Pointer to a six-byte array containing the Ethernet address
|
|
*
|
|
* Return true if the address is all zeroes.
|
|
*/
|
|
static inline int is_zero_ether_addr(const u8 *addr)
|
|
{
|
|
return !(addr[0] | addr[1] | addr[2] | addr[3] | addr[4] | addr[5]);
|
|
}
|
|
|
|
/**
|
|
* is_multicast_ether_addr - Determine if the Ethernet address is a multicast.
|
|
* @addr: Pointer to a six-byte array containing the Ethernet address
|
|
*
|
|
* Return true if the address is a multicast address.
|
|
* By definition the broadcast address is also a multicast address.
|
|
*/
|
|
static inline int is_multicast_ether_addr(const u8 *addr)
|
|
{
|
|
return (0x01 & addr[0]);
|
|
}
|
|
|
|
/*
|
|
* is_broadcast_ether_addr - Determine if the Ethernet address is broadcast
|
|
* @addr: Pointer to a six-byte array containing the Ethernet address
|
|
*
|
|
* Return true if the address is the broadcast address.
|
|
*/
|
|
static inline int is_broadcast_ether_addr(const u8 *addr)
|
|
{
|
|
return (addr[0] & addr[1] & addr[2] & addr[3] & addr[4] & addr[5]) == 0xff;
|
|
}
|
|
|
|
/*
|
|
* is_valid_ether_addr - Determine if the given Ethernet address is valid
|
|
* @addr: Pointer to a six-byte array containing the Ethernet address
|
|
*
|
|
* Check that the Ethernet address (MAC) is not 00:00:00:00:00:00, is not
|
|
* a multicast address, and is not FF:FF:FF:FF:FF:FF.
|
|
*
|
|
* Return true if the address is valid.
|
|
*/
|
|
static inline int is_valid_ether_addr(const u8 *addr)
|
|
{
|
|
/* FF:FF:FF:FF:FF:FF is a multicast address so we don't need to
|
|
* explicitly check for it here. */
|
|
return !is_multicast_ether_addr(addr) && !is_zero_ether_addr(addr);
|
|
}
|
|
|
|
/* Convert an IP address to a string */
|
|
extern void ip_to_string (IPaddr_t x, char *s);
|
|
|
|
/* Convert a string to ip address */
|
|
extern IPaddr_t string_to_ip(char *s);
|
|
|
|
/* Convert a VLAN id to a string */
|
|
extern void VLAN_to_string (ushort x, char *s);
|
|
|
|
/* Convert a string to a vlan id */
|
|
extern ushort string_to_VLAN(char *s);
|
|
|
|
/* read a VLAN id from an environment variable */
|
|
extern ushort getenv_VLAN(char *);
|
|
|
|
/* copy a filename (allow for "..." notation, limit length) */
|
|
extern void copy_filename (char *dst, char *src, int size);
|
|
|
|
/* get a random source port */
|
|
extern unsigned int random_port(void);
|
|
|
|
/**********************************************************************/
|
|
|
|
#endif /* __NET_H__ */
|
|
|