drivers/net/fm/t4240.c

   1 /*
   2  * Copyright 2012 Freescale Semiconductor, Inc.
   3  *      Roy Zang <tie-fei.zang@freescale.com>
   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
  14 u32 port_to_devdisr[] = {
  15         [FM1_DTSEC1] = FSL_CORENET_DEVDISR2_DTSEC1_1,
  16         [FM1_DTSEC2] = FSL_CORENET_DEVDISR2_DTSEC1_2,
  17         [FM1_DTSEC3] = FSL_CORENET_DEVDISR2_DTSEC1_3,
  18         [FM1_DTSEC4] = FSL_CORENET_DEVDISR2_DTSEC1_4,
  19         [FM1_DTSEC5] = FSL_CORENET_DEVDISR2_DTSEC1_5,
  20         [FM1_DTSEC6] = FSL_CORENET_DEVDISR2_DTSEC1_6,
  21         [FM1_DTSEC9] = FSL_CORENET_DEVDISR2_DTSEC1_9,
  22         [FM1_DTSEC10] = FSL_CORENET_DEVDISR2_DTSEC1_10,
  23         [FM1_10GEC1] = FSL_CORENET_DEVDISR2_10GEC1_1,
  24         [FM1_10GEC2] = FSL_CORENET_DEVDISR2_10GEC1_2,
  25         [FM2_DTSEC1] = FSL_CORENET_DEVDISR2_DTSEC2_1,
  26         [FM2_DTSEC2] = FSL_CORENET_DEVDISR2_DTSEC2_2,
  27         [FM2_DTSEC3] = FSL_CORENET_DEVDISR2_DTSEC2_3,
  28         [FM2_DTSEC4] = FSL_CORENET_DEVDISR2_DTSEC2_4,
  29         [FM2_DTSEC5] = FSL_CORENET_DEVDISR2_DTSEC2_5,
  30         [FM2_DTSEC6] = FSL_CORENET_DEVDISR2_DTSEC2_6,
  31         [FM2_DTSEC9] = FSL_CORENET_DEVDISR2_DTSEC2_9,
  32         [FM2_DTSEC10] = FSL_CORENET_DEVDISR2_DTSEC2_10,
  33         [FM2_10GEC1] = FSL_CORENET_DEVDISR2_10GEC2_1,
  34         [FM2_10GEC2] = FSL_CORENET_DEVDISR2_10GEC2_2,
  35 };
  36
  37 static int is_device_disabled(enum fm_port port)
  38 {
  39         ccsr_gur_t *gur = (void __iomem *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
  40         u32 devdisr2 = in_be32(&gur->devdisr2);
  41
  42         return port_to_devdisr[port] & devdisr2;
  43 }
  44
  45 void fman_disable_port(enum fm_port port)
  46 {
  47         ccsr_gur_t *gur = (void __iomem *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
  48
  49         setbits_be32(&gur->devdisr2, port_to_devdisr[port]);
  50 }
  51
  52 void fman_enable_port(enum fm_port port)
  53 {
  54         ccsr_gur_t *gur = (void __iomem *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
  55
  56         clrbits_be32(&gur->devdisr2, port_to_devdisr[port]);
  57 }
  58
  59 phy_interface_t fman_port_enet_if(enum fm_port port)
  60 {
  61         ccsr_gur_t *gur = (void __iomem *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
  62         u32 rcwsr13 = in_be32(&gur->rcwsr[13]);
  63
  64         if (is_device_disabled(port))
  65                 return PHY_INTERFACE_MODE_NONE;
  66
  67         if ((port == FM1_10GEC1 || port == FM1_10GEC2) &&
  68             ((is_serdes_configured(XAUI_FM1_MAC9))      ||
  69              (is_serdes_configured(XAUI_FM1_MAC10))     ||
  70              (is_serdes_configured(XFI_FM1_MAC9))       ||
  71              (is_serdes_configured(XFI_FM1_MAC10))))
  72                 return PHY_INTERFACE_MODE_XGMII;
  73
  74         if ((port == FM1_DTSEC9 || port == FM1_DTSEC10) &&
  75             ((is_serdes_configured(XFI_FM1_MAC9)) ||
  76              (is_serdes_configured(XFI_FM1_MAC10))))
  77                 return PHY_INTERFACE_MODE_NONE;
  78
  79         if ((port == FM2_10GEC1 || port == FM2_10GEC2) &&
  80             ((is_serdes_configured(XAUI_FM2_MAC9))      ||
  81              (is_serdes_configured(XAUI_FM2_MAC10))     ||
  82              (is_serdes_configured(XFI_FM2_MAC9))       ||
  83              (is_serdes_configured(XFI_FM2_MAC10))))
  84                 return PHY_INTERFACE_MODE_XGMII;
  85
  86 #define FSL_CORENET_RCWSR13_EC1                 0x60000000 /* bits 417..418 */
  87 #define FSL_CORENET_RCWSR13_EC1_FM2_DTSEC5_RGMII        0x00000000
  88 #define FSL_CORENET_RCWSR13_EC1_FM2_GPIO                0x40000000
  89 #define FSL_CORENET_RCWSR13_EC2                 0x18000000 /* bits 419..420 */
  90 #define FSL_CORENET_RCWSR13_EC2_FM1_DTSEC5_RGMII        0x00000000
  91 #define FSL_CORENET_RCWSR13_EC2_FM2_DTSEC6_RGMII        0x08000000
  92 #define FSL_CORENET_RCWSR13_EC2_FM1_GPIO                0x10000000
  93         /* handle RGMII first */
  94         if ((port == FM2_DTSEC5) && ((rcwsr13 & FSL_CORENET_RCWSR13_EC1) ==
  95                 FSL_CORENET_RCWSR13_EC1_FM2_DTSEC5_RGMII))
  96                 return PHY_INTERFACE_MODE_RGMII;
  97
  98         if ((port == FM1_DTSEC5) && ((rcwsr13 & FSL_CORENET_RCWSR13_EC2) ==
  99                 FSL_CORENET_RCWSR13_EC2_FM1_DTSEC5_RGMII))
 100                 return PHY_INTERFACE_MODE_RGMII;
 101
 102         if ((port == FM2_DTSEC6) && ((rcwsr13 & FSL_CORENET_RCWSR13_EC2) ==
 103                 FSL_CORENET_RCWSR13_EC2_FM2_DTSEC6_RGMII))
 104                 return PHY_INTERFACE_MODE_RGMII;
 105         switch (port) {
 106         case FM1_DTSEC1:
 107         case FM1_DTSEC2:
 108         case FM1_DTSEC3:
 109         case FM1_DTSEC4:
 110         case FM1_DTSEC5:
 111         case FM1_DTSEC6:
 112         case FM1_DTSEC9:
 113         case FM1_DTSEC10:
 114                 if (is_serdes_configured(SGMII_FM1_DTSEC1 + port - FM1_DTSEC1))
 115                         return PHY_INTERFACE_MODE_SGMII;
 116                 break;
 117         case FM2_DTSEC1:
 118         case FM2_DTSEC2:
 119         case FM2_DTSEC3:
 120         case FM2_DTSEC4:
 121         case FM2_DTSEC5:
 122         case FM2_DTSEC6:
 123         case FM2_DTSEC9:
 124         case FM2_DTSEC10:
 125                 if (is_serdes_configured(SGMII_FM2_DTSEC1 + port - FM2_DTSEC1))
 126                         return PHY_INTERFACE_MODE_SGMII;
 127                 break;
 128         default:
 129                 break;
 130         }
 131
 132         /* handle QSGMII */
 133         switch (port) {
 134         case FM1_DTSEC1:
 135         case FM1_DTSEC2:
 136         case FM1_DTSEC3:
 137         case FM1_DTSEC4:
 138                 /* check lane G on SerDes1 */
 139                 if (is_serdes_configured(QSGMII_FM1_A))
 140                         return PHY_INTERFACE_MODE_QSGMII;
 141                 break;
 142         case FM1_DTSEC5:
 143         case FM1_DTSEC6:
 144         case FM1_DTSEC9:
 145         case FM1_DTSEC10:
 146                 /* check lane C on SerDes1 */
 147                 if (is_serdes_configured(QSGMII_FM1_B))
 148                         return PHY_INTERFACE_MODE_QSGMII;
 149                 break;
 150         case FM2_DTSEC1:
 151         case FM2_DTSEC2:
 152         case FM2_DTSEC3:
 153         case FM2_DTSEC4:
 154                 /* check lane G on SerDes2 */
 155                 if (is_serdes_configured(QSGMII_FM2_A))
 156                         return PHY_INTERFACE_MODE_QSGMII;
 157                 break;
 158         case FM2_DTSEC5:
 159         case FM2_DTSEC6:
 160         case FM2_DTSEC9:
 161         case FM2_DTSEC10:
 162                 /* check lane C on SerDes2 */
 163                 if (is_serdes_configured(QSGMII_FM2_B))
 164                         return PHY_INTERFACE_MODE_QSGMII;
 165                 break;
 166         default:
 167                 break;
 168         }
 169
 170         return PHY_INTERFACE_MODE_NONE;
 171 }