pcie_fsl_fixup.c
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// SPDX-License-Identifier: GPL-2.0+ OR X11
/*
* Copyright 2019 NXP
*
* PCIe Kernel DT fixup of DM U-Boot driver for Freescale PowerPC SoCs
* Author: Hou Zhiqiang <Zhiqiang.Hou@nxp.com>
*/
#include <common.h>
#ifdef CONFIG_OF_BOARD_SETUP
#include <dm.h>
#include <fdt_support.h>
#include <asm/fsl_pci.h>
#include <linux/libfdt.h>
#include "pcie_fsl.h"
static void ft_fsl_pcie_setup(void *blob, struct fsl_pcie *pcie)
{
struct pci_controller *hose = dev_get_uclass_priv(pcie->bus);
fdt_addr_t regs_addr;
int off;
regs_addr = dev_read_addr(pcie->bus);
off = fdt_node_offset_by_compat_reg(blob, FSL_PCIE_COMPAT, regs_addr);
if (off < 0) {
printf("%s: Fail to find PCIe node@0x%pa\n",
FSL_PCIE_COMPAT, ®s_addr);
return;
}
if (!hose || !pcie->enabled)
fdt_del_node(blob, off);
else
fdt_pci_dma_ranges(blob, off, hose);
}
/* Fixup Kernel DT for PCIe */
void pci_of_setup(void *blob, bd_t *bd)
{
struct fsl_pcie *pcie;
list_for_each_entry(pcie, &fsl_pcie_list, list)
ft_fsl_pcie_setup(blob, pcie);
}
#else
void pci_of_setup(void *blob, bd_t *bd)
{
}
#endif