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
ft_fsl_pcie_setup(void * blob,struct fsl_pcie * pcie)17 static 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, ®s_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 */
pci_of_setup(void * blob,struct bd_info * bd)38 void pci_of_setup(void *blob, struct bd_info *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
pci_of_setup(void * blob,struct bd_info * bd)47 void pci_of_setup(void *blob, struct bd_info *bd)
48 {
49 }
50 #endif
51