drivers/net/fec_8xx/fec_8xx-netta.c

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