[U-Boot-Users] [PATCH] Adding CONFIG_NET_MULTI support for PPC405 ethernet driver

5 Jun 2003


      Hello,
This patch makes ppc405 ethernet driver compatible with 
CONFIG_NET_MULTI option. In other words, it becomes 
possible to use other network adapters connected to a 
ppc405-based board to boot images, which sometimes
is a desirable feature.
It also cleans up a small bug in the send routine, 
that used to return an unpredictable value on
success.
All feedback is greatly appreciated.
Thanks,
Vladimir
Index: cpu/ppc4xx/405gp_enet.c
===================================================================
RCS file: /cvsroot/u-boot/u-boot/cpu/ppc4xx/405gp_enet.c,v
retrieving revision 1.2
diff -c -b -w -r1.2 405gp_enet.c
*** cpu/ppc4xx/405gp_enet.c	23 May 2003 11:20:59 -0000	1.2
--- cpu/ppc4xx/405gp_enet.c	4 Jun 2003 20:57:38 -0000
***************
*** 173,189 ****
  static int is_receiving = 0;	/* sync with eth interrupt */
  static int print_speed = 1;	/* print speed message upon start */
- static void enet_rcv (unsigned long malisr);
- 
  /*-----------------------------------------------------------------------------+
   * Prototypes and externals.
   *-----------------------------------------------------------------------------*/
! void mal_err (unsigned long isr, unsigned long uic, unsigned long mal_def,
          unsigned long mal_errr);
! void emac_err (unsigned long isr);
!
! void eth_halt (void)
  {
    mtdcr (malier, 0x00000000);	/* disable mal interrupts */
    out32 (EMAC_IER, 0x00000000);	/* disable emac interrupts */
--- 173,188 ----
  static int is_receiving = 0;	/* sync with eth interrupt */
  static int print_speed = 1;	/* print speed message upon start */
/*-----------------------------------------------------------------------------+
   * Prototypes and externals.
   *-----------------------------------------------------------------------------*/
! static void enet_rcv (unsigned long malisr);
! static int  enetInt(void);
! static void mal_err (unsigned long isr, unsigned long uic, unsigned long mal_def,
                       unsigned long mal_errr);
! static void emac_err (unsigned long isr);
! static void ppc_4xx_eth_halt (struct eth_device *dev)
  {
    mtdcr (malier, 0x00000000);	/* disable mal interrupts */
    out32 (EMAC_IER, 0x00000000);	/* disable emac interrupts */
***************
*** 202,208 ****
  }
! int eth_init (bd_t * bis)
  {
    int i;
    unsigned long reg;
--- 201,207 ----
  }
! static int ppc_4xx_eth_init (struct eth_device *dev, bd_t * bis)
  {
    int i;
    unsigned long reg;
***************
*** 478,488 ****
    bis_save = bis;
    first_init = 1;
! 	return (0);
  }
! int eth_send (volatile void *ptr, int len)
  {
    struct enet_frame *ef_ptr;
    ulong time_start, time_now;
--- 477,487 ----
    bis_save = bis;
    first_init = 1;
! 	return (1);
  }
! static int ppc_4xx_eth_send (struct eth_device *dev, volatile void *ptr, int len)
  {
    struct enet_frame *ef_ptr;
    ulong time_start, time_now;
***************
*** 539,545 ****
    			return (-1);
    		}
    	} else {
! 			return (0);
    	}
    }
  }
--- 538,544 ----
    			return (-1);
    		}
    	} else {
! 			return (len);
    	}
    }
  }
***************
*** 696,702 ****
  /*-----------------------------------------------------------------------------+
   *  MAL Error Routine
   *-----------------------------------------------------------------------------*/
! void mal_err (unsigned long isr, unsigned long uic, unsigned long maldef,
          unsigned long mal_errr)
  {
    mtdcr (malesr, isr);		/* clear interrupt */
--- 695,701 ----
  /*-----------------------------------------------------------------------------+
   *  MAL Error Routine
   *-----------------------------------------------------------------------------*/
! static void mal_err (unsigned long isr, unsigned long uic, unsigned long maldef,
          unsigned long mal_errr)
  {
    mtdcr (malesr, isr);		/* clear interrupt */
***************
*** 724,730 ****
  /*-----------------------------------------------------------------------------+
   *  EMAC Error Routine
   *-----------------------------------------------------------------------------*/
! void emac_err (unsigned long isr)
  {
    printf ("EMAC error occured.... ISR = %lx\n", isr);
    out32 (EMAC_ISR, isr);
--- 723,729 ----
  /*-----------------------------------------------------------------------------+
   *  EMAC Error Routine
   *-----------------------------------------------------------------------------*/
! static void emac_err (unsigned long isr)
  {
    printf ("EMAC error occured.... ISR = %lx\n", isr);
    out32 (EMAC_ISR, isr);
***************
*** 816,822 ****
  }
! int eth_rx (void)
  {
    int length;
    int user_index;
--- 815,821 ----
  }
! static int ppc_4xx_eth_rx (struct eth_device *dev)
  {
    int length;
    int user_index;
***************
*** 863,867 ****
--- 862,908 ----
return length;
  }
+ 
+ #if defined(CONFIG_NET_MULTI)
+ int ppc_4xx_eth_initialize(bd_t *bis)
+ {
+         struct eth_device *dev;
+         int                eth_num = 0;
+ 
+         dev = malloc (sizeof *dev);
+         if (dev == NULL) {
+                 printf(__FUNCTION__ ": Cannot allocate eth_device\n");
+                 return (-1);
+         }
+ 
+         sprintf(dev->name, "ppc_4xx_eth%d", eth_num);
+         dev->priv = (void *) eth_num;
+         dev->init = ppc_4xx_eth_init;
+         dev->halt = ppc_4xx_eth_halt;
+         dev->send = ppc_4xx_eth_send;
+         dev->recv = ppc_4xx_eth_rx;
+ 
+         eth_register (dev);
+ }
+ #else /* !defined(CONFIG_NET_MULTI) */
+ void eth_halt (void)
+ {
+         ppc_4xx_eth_halt(NULL);
+ }
+ 
+ int eth_init (bd_t *bis)
+ {
+         return (ppc_4xx_eth_init(NULL, bis));
+ }
+ int eth_send(volatile void *packet, int length)
+ {
+         return (ppc_4xx_eth_send(NULL, packet, length));
+ }
+ 
+ int eth_rx(void)
+ {
+         return (ppc_4xx_eth_rx(NULL));
+ }
+ #endif /* !defined(CONFIG_NET_MULTI) */
#endif	/* CONFIG_405GP */
Index: include/405gp_enet.h
===================================================================
RCS file: /cvsroot/u-boot/u-boot/include/405gp_enet.h,v
retrieving revision 1.1.1.1
diff -c -b -w -r1.1.1.1 405gp_enet.h
*** include/405gp_enet.h	16 Aug 2002 13:30:52 -0000	1.1.1.1
--- include/405gp_enet.h	4 Jun 2003 20:57:39 -0000
***************
*** 241,246 ****
  /*-----------------------------------------------------------------------------+
  | Function prototypes for device table.
  +-----------------------------------------------------------------------------*/
- int enetInt(void);
- 
  #endif /* _enetLib_h_ */
--- 241,244 ----
Index: net/eth.c
===================================================================
RCS file: /cvsroot/u-boot/u-boot/net/eth.c,v
retrieving revision 1.7
diff -c -b -w -r1.7 eth.c
*** net/eth.c	3 Jun 2003 23:54:43 -0000	1.7
--- net/eth.c	4 Jun 2003 20:57:40 -0000
***************
*** 41,46 ****
--- 41,47 ----
  extern int fec_initialize(bd_t*);
  extern int scc_initialize(bd_t*);
  extern int inca_switch_initialize(bd_t*);
+ extern int ppc_4xx_eth_initialize(bd_t *);
  extern int plb2800_eth_initialize(bd_t*);
static struct eth_device *eth_devices, *eth_current;
***************
*** 98,103 ****
--- 99,107 ----
    eth_devices = NULL;
    eth_current = NULL;
+ #if (defined(CONFIG_405GP) || defined(CONFIG_440)|| defined(CONFIG_405EP)
+         ppc_4xx_eth_initialize(bis);
+ #endif
  #ifdef CONFIG_INCA_IP_SWITCH
    inca_switch_initialize(bis);
  #endif

[U-Boot-Users] [PATCH] Adding CONFIG_NET_MULTI support for PPC405 ethernet driver

Vladimir Gurevich