LXR uboot/board/xes/common/fsl_8xxx

   1/*
   2 * Copyright 2008 Extreme Engineering Solutions, Inc.
   3 * Copyright 2007-2008 Freescale Semiconductor, Inc.
   4 *
   5 * SPDX-License-Identifier:     GPL-2.0+
   6 */
   7
   8#include <common.h>
   9#include <pci.h>
  10#include <asm/fsl_pci.h>
  11#include <asm/fsl_serdes.h>
  12#include <asm/io.h>
  13#include <linux/compiler.h>
  14#include <libfdt.h>
  15#include <fdt_support.h>
  16
  17
  18#ifdef CONFIG_PCI1
  19static struct pci_controller pci1_hose;
  20#endif
  21
  22void pci_init_board(void)
  23{
  24        int first_free_busno = 0;
  25
  26#ifdef CONFIG_PCI1
  27        int pcie_ep;
  28        struct fsl_pci_info pci_info;
  29        volatile ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
  30        u32 devdisr = in_be32(&gur->devdisr);
  31        uint pci_spd_norm = in_be32(&gur->pordevsr) & MPC85xx_PORDEVSR_PCI1_SPD;
  32        uint pci_32 = in_be32(&gur->pordevsr) & MPC85xx_PORDEVSR_PCI1_PCI32;
  33        uint pci_arb = in_be32(&gur->pordevsr) & MPC85xx_PORDEVSR_PCI1_ARB;
  34        uint pcix = in_be32(&gur->pordevsr) & MPC85xx_PORDEVSR_PCI1;
  35        uint freq = CONFIG_SYS_CLK_FREQ / 1000 / 1000;
  36
  37        if (!(devdisr & MPC85xx_DEVDISR_PCI1)) {
  38                SET_STD_PCI_INFO(pci_info, 1);
  39                set_next_law(pci_info.mem_phys,
  40                        law_size_bits(pci_info.mem_size), pci_info.law);
  41                set_next_law(pci_info.io_phys,
  42                        law_size_bits(pci_info.io_size), pci_info.law);
  43
  44                pcie_ep = fsl_setup_hose(&pci1_hose, pci_info.regs);
  45                printf("PCI1: %d bit %s, %s %d MHz, %s, %s\n",
  46                        pci_32 ? 32 : 64,
  47                        pcix ? "PCIX" : "PCI",
  48                        pci_spd_norm ? ">=" : "<=",
  49                        pcix ? freq * 2 : freq,
  50                        pcie_ep ? "agent" : "host",
  51                        pci_arb ? "arbiter" : "external-arbiter");
  52
  53                first_free_busno = fsl_pci_init_port(&pci_info,
  54                                        &pci1_hose, first_free_busno);
  55        } else {
  56                printf("PCI1: disabled\n");
  57        }
  58#elif defined CONFIG_MPC8548
  59        volatile ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
  60        /* PCI1 not present on MPC8572 */
  61        setbits_be32(&gur->devdisr, MPC85xx_DEVDISR_PCI1);
  62#endif
  63
  64        fsl_pcie_init_board(first_free_busno);
  65}
  66
  67#if defined(CONFIG_OF_BOARD_SETUP)
  68void ft_board_pci_setup(void *blob, bd_t *bd)
  69{
  70        FT_FSL_PCI_SETUP;
  71}
  72#endif /* CONFIG_OF_BOARD_SETUP */
  73