drivers/net/fm/ls1043.c

   1 /*
   2  * Copyright 2015 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/arch/fsl_serdes.h>
  11
  12 #define FSL_CHASSIS2_RCWSR13_EC1                0xe0000000 /* bits 416..418 */
  13 #define FSL_CHASSIS2_RCWSR13_EC1_DTSEC3_RGMII   0x00000000
  14 #define FSL_CHASSIS2_RCWSR13_EC1_GPIO           0x20000000
  15 #define FSL_CHASSIS2_RCWSR13_EC1_FTM            0xa0000000
  16 #define FSL_CHASSIS2_RCWSR13_EC2                0x1c000000 /* bits 419..421 */
  17 #define FSL_CHASSIS2_RCWSR13_EC2_DTSEC4_RGMII   0x00000000
  18 #define FSL_CHASSIS2_RCWSR13_EC2_GPIO           0x04000000
  19 #define FSL_CHASSIS2_RCWSR13_EC2_1588           0x08000000
  20 #define FSL_CHASSIS2_RCWSR13_EC2_FTM            0x14000000
  21
  22 u32 port_to_devdisr[] = {
  23         [FM1_DTSEC1] = FSL_CHASSIS2_DEVDISR2_DTSEC1_1,
  24         [FM1_DTSEC2] = FSL_CHASSIS2_DEVDISR2_DTSEC1_2,
  25         [FM1_DTSEC3] = FSL_CHASSIS2_DEVDISR2_DTSEC1_3,
  26         [FM1_DTSEC4] = FSL_CHASSIS2_DEVDISR2_DTSEC1_4,
  27         [FM1_DTSEC5] = FSL_CHASSIS2_DEVDISR2_DTSEC1_5,
  28         [FM1_DTSEC6] = FSL_CHASSIS2_DEVDISR2_DTSEC1_6,
  29         [FM1_DTSEC9] = FSL_CHASSIS2_DEVDISR2_DTSEC1_9,
  30         [FM1_DTSEC10] = FSL_CHASSIS2_DEVDISR2_DTSEC1_10,
  31         [FM1_10GEC1] = FSL_CHASSIS2_DEVDISR2_10GEC1_1,
  32         [FM1_10GEC2] = FSL_CHASSIS2_DEVDISR2_10GEC1_2,
  33         [FM1_10GEC3] = FSL_CHASSIS2_DEVDISR2_10GEC1_3,
  34         [FM1_10GEC4] = FSL_CHASSIS2_DEVDISR2_10GEC1_4,
  35 };
  36
  37 static int is_device_disabled(enum fm_port port)
  38 {
  39         struct ccsr_gur *gur = (void *)(CONFIG_SYS_FSL_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         struct ccsr_gur *gur = (void *)(CONFIG_SYS_FSL_GUTS_ADDR);
  48
  49         setbits_be32(&gur->devdisr2, port_to_devdisr[port]);
  50 }
  51
  52 phy_interface_t fman_port_enet_if(enum fm_port port)
  53 {
  54         struct ccsr_gur *gur = (void *)(CONFIG_SYS_FSL_GUTS_ADDR);
  55         u32 rcwsr13 = in_be32(&gur->rcwsr[13]);
  56
  57         if (is_device_disabled(port)) {
  58                 printf("%s:%d: port(%d) is disabled\n", __func__,
  59                        __LINE__, port);
  60                 return PHY_INTERFACE_MODE_NONE;
  61         }
  62
  63         if ((port == FM1_10GEC1) && (is_serdes_configured(XFI_FM1_MAC9)))
  64                 return PHY_INTERFACE_MODE_XGMII;
  65
  66         if ((port == FM1_DTSEC9) && (is_serdes_configured(XFI_FM1_MAC9)))
  67                 return PHY_INTERFACE_MODE_NONE;
  68
  69         if (port == FM1_DTSEC3)
  70                 if ((rcwsr13 & FSL_CHASSIS2_RCWSR13_EC1) ==
  71                                 FSL_CHASSIS2_RCWSR13_EC1_DTSEC3_RGMII) {
  72                         printf("%s:%d: port(FM1_DTSEC3) is OK\n",
  73                                __func__, __LINE__);
  74                         return PHY_INTERFACE_MODE_RGMII;
  75                 }
  76         if (port == FM1_DTSEC4)
  77                 if ((rcwsr13 & FSL_CHASSIS2_RCWSR13_EC2) ==
  78                                 FSL_CHASSIS2_RCWSR13_EC2_DTSEC4_RGMII) {
  79                         printf("%s:%d: port(FM1_DTSEC4) is OK\n",
  80                                __func__, __LINE__);
  81                         return PHY_INTERFACE_MODE_RGMII;
  82                 }
  83
  84         /* handle SGMII */
  85         switch (port) {
  86         case FM1_DTSEC1:
  87         case FM1_DTSEC2:
  88                 if ((port == FM1_DTSEC2) &&
  89                     is_serdes_configured(SGMII_2500_FM1_DTSEC2))
  90                         return PHY_INTERFACE_MODE_SGMII_2500;
  91         case FM1_DTSEC5:
  92         case FM1_DTSEC6:
  93         case FM1_DTSEC9:
  94                 if (is_serdes_configured(SGMII_FM1_DTSEC1 + port - FM1_DTSEC1))
  95                         return PHY_INTERFACE_MODE_SGMII;
  96                 else if ((port == FM1_DTSEC9) &&
  97                          is_serdes_configured(SGMII_2500_FM1_DTSEC9))
  98                         return PHY_INTERFACE_MODE_SGMII_2500;
  99                 break;
 100         default:
 101                 break;
 102         }
 103
 104         /* handle QSGMII */
 105         switch (port) {
 106         case FM1_DTSEC1:
 107         case FM1_DTSEC2:
 108         case FM1_DTSEC5:
 109         case FM1_DTSEC6:
 110                 /* only MAC 1,2,5,6 available for QSGMII */
 111                 if (is_serdes_configured(QSGMII_FM1_A))
 112                         return PHY_INTERFACE_MODE_QSGMII;
 113                 break;
 114         default:
 115                 break;
 116         }
 117
 118         return PHY_INTERFACE_MODE_NONE;
 119 }