drivers/net/fm/b4860.c

   1 /*
   2  * Copyright 2012 Freescale Semiconductor, Inc.
   3  *      Roy Zang <[email protected]>
   4  *
   5  * SPDX-License-Identifier:     GPL-2.0+
   6  */
   7 #include <common.h>
   8 #include <phy.h>
   9 #include <fm_eth.h>
  10 #include <asm/io.h>
  11 #include <asm/immap_85xx.h>
  12 #include <asm/fsl_serdes.h>
  13 #include <hwconfig.h>
  14
  15 u32 port_to_devdisr[] = {
  16         [FM1_DTSEC1] = FSL_CORENET_DEVDISR2_DTSEC1_1,
  17         [FM1_DTSEC2] = FSL_CORENET_DEVDISR2_DTSEC1_2,
  18         [FM1_DTSEC3] = FSL_CORENET_DEVDISR2_DTSEC1_3,
  19         [FM1_DTSEC4] = FSL_CORENET_DEVDISR2_DTSEC1_4,
  20         [FM1_DTSEC5] = FSL_CORENET_DEVDISR2_DTSEC1_5,
  21         [FM1_DTSEC6] = FSL_CORENET_DEVDISR2_DTSEC1_6,
  22         [FM1_10GEC1] = FSL_CORENET_DEVDISR2_10GEC1_1,
  23         [FM1_10GEC2] = FSL_CORENET_DEVDISR2_10GEC1_2,
  24 };
  25
  26 static int is_device_disabled(enum fm_port port)
  27 {
  28         ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
  29         u32 devdisr2 = in_be32(&gur->devdisr2);
  30
  31         return port_to_devdisr[port] & devdisr2;
  32 }
  33
  34 void fman_disable_port(enum fm_port port)
  35 {
  36         ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
  37
  38         setbits_be32(&gur->devdisr2, port_to_devdisr[port]);
  39 }
  40
  41 void fman_enable_port(enum fm_port port)
  42 {
  43         ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
  44
  45         clrbits_be32(&gur->devdisr2, port_to_devdisr[port]);
  46 }
  47
  48 phy_interface_t fman_port_enet_if(enum fm_port port)
  49 {
  50 #if defined(CONFIG_TARGET_B4860QDS) || defined(CONFIG_TARGET_B4420QDS)
  51         u32 serdes2_prtcl;
  52         char buffer[HWCONFIG_BUFFER_SIZE];
  53         char *buf = NULL;
  54         ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
  55 #endif
  56
  57         if (is_device_disabled(port))
  58                 return PHY_INTERFACE_MODE_NONE;
  59
  60         /*B4860 has two 10Gig Mac*/
  61         if ((port == FM1_10GEC1 || port == FM1_10GEC2)  &&
  62             ((is_serdes_configured(XAUI_FM1_MAC9))      ||
  63              #if (!defined(CONFIG_TARGET_B4860QDS) && \
  64                   !defined(CONFIG_TARGET_B4R420QDS))
  65              (is_serdes_configured(XFI_FM1_MAC9))       ||
  66              (is_serdes_configured(XFI_FM1_MAC10))      ||
  67              #endif
  68              (is_serdes_configured(XAUI_FM1_MAC10))
  69              ))
  70                 return PHY_INTERFACE_MODE_XGMII;
  71
  72 #if defined(CONFIG_TARGET_B4860QDS) || defined(CONFIG_TARGET_B4420QDS)
  73         serdes2_prtcl = in_be32(&gur->rcwsr[4]) &
  74                         FSL_CORENET2_RCWSR4_SRDS2_PRTCL;
  75
  76         if (serdes2_prtcl) {
  77                 serdes2_prtcl >>= FSL_CORENET2_RCWSR4_SRDS2_PRTCL_SHIFT;
  78                 switch (serdes2_prtcl) {
  79                 case 0x80:
  80                 case 0x81:
  81                 case 0x82:
  82                 case 0x83:
  83                 case 0x84:
  84                 case 0x85:
  85                 case 0x86:
  86                 case 0x87:
  87                 case 0x88:
  88                 case 0x89:
  89                 case 0x8a:
  90                 case 0x8b:
  91                 case 0x8c:
  92                 case 0x8d:
  93                 case 0x8e:
  94                 case 0xb1:
  95                 case 0xb2:
  96                         /*
  97                          * Extract hwconfig from environment since environment
  98                          * is not setup yet
  99                          */
 100                         getenv_f("hwconfig", buffer, sizeof(buffer));
 101                         buf = buffer;
 102
 103                         /* check if XFI interface enable in hwconfig for 10g */
 104                         if (hwconfig_subarg_cmp_f("fsl_b4860_serdes2",
 105                                                   "sfp_amc", "sfp", buf)) {
 106                                 if ((port == FM1_10GEC1 ||
 107                                      port == FM1_10GEC2) &&
 108                                     ((is_serdes_configured(XFI_FM1_MAC9)) ||
 109                                     (is_serdes_configured(XFI_FM1_MAC10))))
 110                                         return PHY_INTERFACE_MODE_XGMII;
 111                                 else if ((port == FM1_DTSEC1) ||
 112                                          (port == FM1_DTSEC2) ||
 113                                          (port == FM1_DTSEC3) ||
 114                                          (port == FM1_DTSEC4))
 115                                         return PHY_INTERFACE_MODE_NONE;
 116                         }
 117                 }
 118         }
 119 #endif
 120
 121         /* Fix me need to handle RGMII here first */
 122
 123         switch (port) {
 124         case FM1_DTSEC1:
 125         case FM1_DTSEC2:
 126         case FM1_DTSEC3:
 127         case FM1_DTSEC4:
 128         case FM1_DTSEC5:
 129         case FM1_DTSEC6:
 130                 if (is_serdes_configured(SGMII_FM1_DTSEC1 + port - FM1_DTSEC1))
 131                         return PHY_INTERFACE_MODE_SGMII;
 132                 break;
 133         default:
 134                 return PHY_INTERFACE_MODE_NONE;
 135         }
 136
 137         return PHY_INTERFACE_MODE_NONE;
 138 }