LXR uboot/drivers/pci/pcie_fsl

   1// SPDX-License-Identifier: GPL-2.0+ OR X11
   2/*
   3 * Copyright 2019 NXP
   4 *
   5 * PCIe Kernel DT fixup of DM U-Boot driver for Freescale PowerPC SoCs
   6 * Author: Hou Zhiqiang <Zhiqiang.Hou@nxp.com>
   7 */
   8
   9#include <common.h>
  10#ifdef CONFIG_OF_BOARD_SETUP
  11#include <dm.h>
  12#include <fdt_support.h>
  13#include <asm/fsl_pci.h>
  14#include <linux/libfdt.h>
  15#include "pcie_fsl.h"
  16
  17static void ft_fsl_pcie_setup(void *blob, struct fsl_pcie *pcie)
  18{
  19        struct pci_controller *hose = dev_get_uclass_priv(pcie->bus);
  20        fdt_addr_t regs_addr;
  21        int off;
  22
  23        regs_addr = dev_read_addr(pcie->bus);
  24        off = fdt_node_offset_by_compat_reg(blob, FSL_PCIE_COMPAT, regs_addr);
  25        if (off < 0) {
  26                printf("%s: Fail to find PCIe node@0x%pa\n",
  27                       FSL_PCIE_COMPAT, &regs_addr);
  28                return;
  29        }
  30
  31        if (!hose || !pcie->enabled)
  32                fdt_del_node(blob, off);
  33        else
  34                fdt_pci_dma_ranges(blob, off, hose);
  35}
  36
  37/* Fixup Kernel DT for PCIe */
  38void pci_of_setup(void *blob, bd_t *bd)
  39{
  40        struct fsl_pcie *pcie;
  41
  42        list_for_each_entry(pcie, &fsl_pcie_list, list)
  43                ft_fsl_pcie_setup(blob, pcie);
  44}
  45
  46#else
  47void pci_of_setup(void *blob, bd_t *bd)
  48{
  49}
  50#endif
  51