drivers/net/fm/p5040.c

   1 /*
   2  * Copyright 2011 Freescale Semiconductor, Inc.
   3  *
   4  * SPDX-License-Identifier:     GPL-2.0+
   5  */
   6 #include <common.h>
   7 #include <phy.h>
   8 #include <fm_eth.h>
   9 #include <asm/io.h>
  10 #include <asm/immap_85xx.h>
  11 #include <asm/fsl_serdes.h>
  12
  13 u32 port_to_devdisr[] = {
  14         [FM1_DTSEC1] = FSL_CORENET_DEVDISR2_DTSEC1_1,
  15         [FM1_DTSEC2] = FSL_CORENET_DEVDISR2_DTSEC1_2,
  16         [FM1_DTSEC3] = FSL_CORENET_DEVDISR2_DTSEC1_3,
  17         [FM1_DTSEC4] = FSL_CORENET_DEVDISR2_DTSEC1_4,
  18         [FM1_DTSEC5] = FSL_CORENET_DEVDISR2_DTSEC1_5,
  19         [FM1_10GEC1] = FSL_CORENET_DEVDISR2_10GEC1,
  20         [FM2_DTSEC1] = FSL_CORENET_DEVDISR2_DTSEC2_1,
  21         [FM2_DTSEC2] = FSL_CORENET_DEVDISR2_DTSEC2_2,
  22         [FM2_DTSEC3] = FSL_CORENET_DEVDISR2_DTSEC2_3,
  23         [FM2_DTSEC4] = FSL_CORENET_DEVDISR2_DTSEC2_4,
  24         [FM2_DTSEC5] = FSL_CORENET_DEVDISR2_DTSEC2_5,
  25         [FM2_10GEC1] = FSL_CORENET_DEVDISR2_10GEC2,
  26 };
  27
  28 static int is_device_disabled(enum fm_port port)
  29 {
  30         ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
  31         u32 devdisr2 = in_be32(&gur->devdisr2);
  32
  33         return port_to_devdisr[port] & devdisr2;
  34 }
  35
  36 void fman_disable_port(enum fm_port port)
  37 {
  38         ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
  39
  40         /* don't allow disabling of DTSEC1 as its needed for MDIO */
  41         if (port == FM1_DTSEC1)
  42                 return;
  43
  44         setbits_be32(&gur->devdisr2, port_to_devdisr[port]);
  45 }
  46
  47 void fman_enable_port(enum fm_port port)
  48 {
  49         ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
  50
  51         clrbits_be32(&gur->devdisr2, port_to_devdisr[port]);
  52 }
  53
  54 phy_interface_t fman_port_enet_if(enum fm_port port)
  55 {
  56         ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
  57         u32 rcwsr11 = in_be32(&gur->rcwsr[11]);
  58
  59         if (is_device_disabled(port))
  60                 return PHY_INTERFACE_MODE_NONE;
  61
  62         if ((port == FM1_10GEC1) && (is_serdes_configured(XAUI_FM1)))
  63                 return PHY_INTERFACE_MODE_XGMII;
  64
  65         if ((port == FM2_10GEC1) && (is_serdes_configured(XAUI_FM2)))
  66                 return PHY_INTERFACE_MODE_XGMII;
  67
  68         /* handle RGMII first */
  69         if ((port == FM1_DTSEC5) && ((rcwsr11 & FSL_CORENET_RCWSR11_EC1) ==
  70                 FSL_CORENET_RCWSR11_EC1_FM1_DTSEC5_RGMII))
  71                 return PHY_INTERFACE_MODE_RGMII;
  72
  73         if ((port == FM1_DTSEC5) && ((rcwsr11 & FSL_CORENET_RCWSR11_EC1) ==
  74                 FSL_CORENET_RCWSR11_EC1_FM1_DTSEC5_MII))
  75                 return PHY_INTERFACE_MODE_MII;
  76
  77         if ((port == FM2_DTSEC5) && ((rcwsr11 & FSL_CORENET_RCWSR11_EC2) ==
  78                 FSL_CORENET_RCWSR11_EC2_FM2_DTSEC5_RGMII))
  79                 return PHY_INTERFACE_MODE_RGMII;
  80
  81         if ((port == FM2_DTSEC5) && ((rcwsr11 & FSL_CORENET_RCWSR11_EC2) ==
  82                 FSL_CORENET_RCWSR11_EC2_FM2_DTSEC5_MII))
  83                 return PHY_INTERFACE_MODE_MII;
  84
  85         switch (port) {
  86         case FM1_DTSEC1:
  87         case FM1_DTSEC2:
  88         case FM1_DTSEC3:
  89         case FM1_DTSEC4:
  90         case FM1_DTSEC5:
  91                 if (is_serdes_configured(SGMII_FM1_DTSEC1 + port - FM1_DTSEC1))
  92                         return PHY_INTERFACE_MODE_SGMII;
  93                 break;
  94         case FM2_DTSEC1:
  95         case FM2_DTSEC2:
  96         case FM2_DTSEC3:
  97         case FM2_DTSEC4:
  98         case FM2_DTSEC5:
  99                 if (is_serdes_configured(SGMII_FM2_DTSEC1 + port - FM2_DTSEC1))
 100                         return PHY_INTERFACE_MODE_SGMII;
 101                 break;
 102         default:
 103                 return PHY_INTERFACE_MODE_NONE;
 104         }
 105
 106         return PHY_INTERFACE_MODE_NONE;
 107 }