drivers/net/fec_8xx/fec_8xx-netta.c

   1 /*
   2  * FEC instantatiation file for NETTA
   3  */
   4
   5 #include <linux/config.h>
   6 #include <linux/kernel.h>
   7 #include <linux/types.h>
   8 #include <linux/sched.h>
   9 #include <linux/string.h>
  10 #include <linux/ptrace.h>
  11 #include <linux/errno.h>
  12 #include <linux/ioport.h>
  13 #include <linux/slab.h>
  14 #include <linux/interrupt.h>
  15 #include <linux/pci.h>
  16 #include <linux/init.h>
  17 #include <linux/delay.h>
  18 #include <linux/netdevice.h>
  19 #include <linux/etherdevice.h>
  20 #include <linux/skbuff.h>
  21 #include <linux/spinlock.h>
  22 #include <linux/mii.h>
  23 #include <linux/ethtool.h>
  24 #include <linux/bitops.h>
  25
  26 #include <asm/8xx_immap.h>
  27 #include <asm/pgtable.h>
  28 #include <asm/mpc8xx.h>
  29 #include <asm/irq.h>
  30 #include <asm/uaccess.h>
  31 #include <asm/commproc.h>
  32
  33 #include "fec_8xx.h"
  34
  35 /*************************************************/
  36
  37 static struct fec_platform_info fec1_info = {
  38         .fec_no = 0,
  39         .use_mdio = 1,
  40         .phy_addr = 8,
  41         .fec_irq = SIU_LEVEL1,
  42         .phy_irq = CPM_IRQ_OFFSET + CPMVEC_PIO_PC6,
  43         .rx_ring = 128,
  44         .tx_ring = 16,
  45         .rx_copybreak = 240,
  46         .use_napi = 1,
  47         .napi_weight = 17,
  48 };
  49
  50 static struct fec_platform_info fec2_info = {
  51         .fec_no = 1,
  52         .use_mdio = 1,
  53         .phy_addr = 2,
  54         .fec_irq = SIU_LEVEL3,
  55         .phy_irq = CPM_IRQ_OFFSET + CPMVEC_PIO_PC7,
  56         .rx_ring = 128,
  57         .tx_ring = 16,
  58         .rx_copybreak = 240,
  59         .use_napi = 1,
  60         .napi_weight = 17,
  61 };
  62
  63 static struct net_device *fec1_dev;
  64 static struct net_device *fec2_dev;
  65
  66 /* XXX custom u-boot & Linux startup needed */
  67 extern const char *__fw_getenv(const char *var);
  68
  69 /* access ports */
  70 #define setbits32(_addr, _v) __fec_out32(&(_addr), __fec_in32(&(_addr)) |  (_v))
  71 #define clrbits32(_addr, _v) __fec_out32(&(_addr), __fec_in32(&(_addr)) & ~(_v))
  72
  73 #define setbits16(_addr, _v) __fec_out16(&(_addr), __fec_in16(&(_addr)) |  (_v))
  74 #define clrbits16(_addr, _v) __fec_out16(&(_addr), __fec_in16(&(_addr)) & ~(_v))
  75
  76 int fec_8xx_platform_init(void)
  77 {
  78         immap_t *immap = (immap_t *)IMAP_ADDR;
  79         bd_t *bd = (bd_t *) __res;
  80         const char *s;
  81         char *e;
  82         int i;
  83
  84         /* use MDC for MII */
  85         setbits16(immap->im_ioport.iop_pdpar, 0x0080);
  86         clrbits16(immap->im_ioport.iop_pddir, 0x0080);
  87
  88         /* configure FEC1 pins */
  89         setbits16(immap->im_ioport.iop_papar, 0xe810);
  90         setbits16(immap->im_ioport.iop_padir, 0x0810);
  91         clrbits16(immap->im_ioport.iop_padir, 0xe000);
  92
  93         setbits32(immap->im_cpm.cp_pbpar, 0x00000001);
  94         clrbits32(immap->im_cpm.cp_pbdir, 0x00000001);
  95
  96         setbits32(immap->im_cpm.cp_cptr, 0x00000100);
  97         clrbits32(immap->im_cpm.cp_cptr, 0x00000050);
  98
  99         clrbits16(immap->im_ioport.iop_pcpar, 0x0200);
 100         clrbits16(immap->im_ioport.iop_pcdir, 0x0200);
 101         clrbits16(immap->im_ioport.iop_pcso, 0x0200);
 102         setbits16(immap->im_ioport.iop_pcint, 0x0200);
 103
 104         /* configure FEC2 pins */
 105         setbits32(immap->im_cpm.cp_pepar, 0x00039620);
 106         setbits32(immap->im_cpm.cp_pedir, 0x00039620);
 107         setbits32(immap->im_cpm.cp_peso, 0x00031000);
 108         clrbits32(immap->im_cpm.cp_peso, 0x00008620);
 109
 110         setbits32(immap->im_cpm.cp_cptr, 0x00000080);
 111         clrbits32(immap->im_cpm.cp_cptr, 0x00000028);
 112
 113         clrbits16(immap->im_ioport.iop_pcpar, 0x0200);
 114         clrbits16(immap->im_ioport.iop_pcdir, 0x0200);
 115         clrbits16(immap->im_ioport.iop_pcso, 0x0200);
 116         setbits16(immap->im_ioport.iop_pcint, 0x0200);
 117
 118         /* fill up */
 119         fec1_info.sys_clk = bd->bi_intfreq;
 120         fec2_info.sys_clk = bd->bi_intfreq;
 121
 122         s = __fw_getenv("ethaddr");
 123         if (s != NULL) {
 124                 for (i = 0; i < 6; i++) {
 125                         fec1_info.macaddr[i] = simple_strtoul(s, &e, 16);
 126                         if (*e)
 127                                 s = e + 1;
 128                 }
 129         }
 130
 131         s = __fw_getenv("eth1addr");
 132         if (s != NULL) {
 133                 for (i = 0; i < 6; i++) {
 134                         fec2_info.macaddr[i] = simple_strtoul(s, &e, 16);
 135                         if (*e)
 136                                 s = e + 1;
 137                 }
 138         }
 139
 140         fec_8xx_init_one(&fec1_info, &fec1_dev);
 141         fec_8xx_init_one(&fec2_info, &fec2_dev);
 142
 143         return fec1_dev != NULL && fec2_dev != NULL ? 0 : -1;
 144 }
 145
 146 void fec_8xx_platform_cleanup(void)
 147 {
 148         if (fec2_dev != NULL)
 149                 fec_8xx_cleanup_one(fec2_dev);
 150
 151         if (fec1_dev != NULL)
 152                 fec_8xx_cleanup_one(fec1_dev);
 153 }