src/southbridge/nvidia/ck804/ck804_nic.c

   1 /*
   2  * Copyright 2004 Tyan Computer
   3  *  by yhlu@tyan.com
   4  */
   5
   6 #include <console/console.h>
   7 #include <device/device.h>
   8 #include <device/smbus.h>
   9 #include <device/pci.h>
  10 #include <device/pci_ids.h>
  11 #include <device/pci_ops.h>
  12 #include <arch/io.h>
  13 #include "ck804.h"
  14
  15 static void nic_init(struct device *dev)
  16 {
  17         uint32_t dword, old, mac_h, mac_l;
  18         int eeprom_valid = 0;
  19         struct southbridge_nvidia_ck804_config *conf;
  20         static uint32_t nic_index = 0;
  21         unsigned long base;
  22         struct resource *res;
  23
  24         res = find_resource(dev, 0x10);
  25         base = (unsigned long)res->base;
  26
  27 #define NvRegPhyInterface  0xC0
  28 #define PHY_RGMII          0x10000000
  29
  30         write32(base + NvRegPhyInterface, PHY_RGMII);
  31
  32         old = dword = pci_read_config32(dev, 0x30);
  33         dword &= ~(0xf);
  34         dword |= 0xf;
  35         if (old != dword)
  36                 pci_write_config32(dev, 0x30, dword);
  37
  38         conf = dev->chip_info;
  39
  40         if (conf->mac_eeprom_smbus != 0) {
  41                 /* Read MAC address from EEPROM at first. */
  42                 struct device *dev_eeprom;
  43                 dev_eeprom = dev_find_slot_on_smbus(conf->mac_eeprom_smbus,
  44                                            conf->mac_eeprom_addr);
  45
  46                 if (dev_eeprom) {
  47                         /* If that is valid we will use that. */
  48                         unsigned char dat[6];
  49                         int i, status;
  50                         for (i = 0; i < 6; i++) {
  51                                 status = smbus_read_byte(dev_eeprom, i);
  52                                 if (status < 0)
  53                                         break;
  54                                 dat[i] = status & 0xff;
  55                         }
  56                         if (status >= 0) {
  57                                 mac_l = 0;
  58                                 for (i = 3; i >= 0; i--) {
  59                                         mac_l <<= 8;
  60                                         mac_l += dat[i];
  61                                 }
  62                                 if (mac_l != 0xffffffff) {
  63                                         mac_l += nic_index;
  64                                         mac_h = 0;
  65                                         for (i = 5; i >= 4; i--) {
  66                                                 mac_h <<= 8;
  67                                                 mac_h += dat[i];
  68                                         }
  69                                         eeprom_valid = 1;
  70                                 }
  71                         }
  72                 }
  73         }
  74
  75         /* If that is invalid we will read that from romstrap. */
  76         if (!eeprom_valid) {
  77                 unsigned long mac_pos;
  78                 mac_pos = 0xffffffd0; /* See romstrap.inc and romstrap.lds. */
  79                 mac_l = read32(mac_pos) + nic_index;
  80                 mac_h = read32(mac_pos + 4);
  81         }
  82 #if 1
  83         /* Set that into NIC MMIO. */
  84 #define NvRegMacAddrA  0xA8
  85 #define NvRegMacAddrB  0xAC
  86         write32(base + NvRegMacAddrA, mac_l);
  87         write32(base + NvRegMacAddrB, mac_h);
  88 #else
  89         /* Set that into NIC. */
  90         pci_write_config32(dev, 0xa8, mac_l);
  91         pci_write_config32(dev, 0xac, mac_h);
  92 #endif
  93
  94         nic_index++;
  95
  96 #if CONFIG_PCI_ROM_RUN == 1
  97         pci_dev_init(dev);      /* It will init Option ROM. */
  98 #endif
  99 }
 100
 101 static void lpci_set_subsystem(device_t dev, unsigned vendor, unsigned device)
 102 {
 103         pci_write_config32(dev, 0x40,
 104                            ((device & 0xffff) << 16) | (vendor & 0xffff));
 105 }
 106
 107 static struct pci_operations lops_pci = {
 108         .set_subsystem = lpci_set_subsystem,
 109 };
 110
 111 static struct device_operations nic_ops = {
 112         .read_resources   = pci_dev_read_resources,
 113         .set_resources    = pci_dev_set_resources,
 114         .enable_resources = pci_dev_enable_resources,
 115         .init             = nic_init,
 116         .scan_bus         = 0,
 117         // .enable        = ck804_enable,
 118         .ops_pci          = &lops_pci,
 119 };
 120
 121 static const struct pci_driver nic_driver __pci_driver = {
 122         .ops    = &nic_ops,
 123         .vendor = PCI_VENDOR_ID_NVIDIA,
 124         .device = PCI_DEVICE_ID_NVIDIA_CK804_NIC,
 125 };
 126
 127 static const struct pci_driver nic_bridge_driver __pci_driver = {
 128         .ops    = &nic_ops,
 129         .vendor = PCI_VENDOR_ID_NVIDIA,
 130         .device = PCI_DEVICE_ID_NVIDIA_CK804_NIC_BRIDGE,
 131 };