common: Drop init.h from common header
[pandora-u-boot.git] / board / renesas / rcar-common / common.c
1 // SPDX-License-Identifier: GPL-2.0
2 /*
3  * board/renesas/rcar-common/common.c
4  *
5  * Copyright (C) 2013 Renesas Electronics Corporation
6  * Copyright (C) 2013 Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
7  * Copyright (C) 2015 Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
8  */
9
10 #include <common.h>
11 #include <dm.h>
12 #include <init.h>
13 #include <dm/uclass-internal.h>
14 #include <asm/arch/rmobile.h>
15 #include <linux/libfdt.h>
16
17 #ifdef CONFIG_RCAR_GEN3
18
19 DECLARE_GLOBAL_DATA_PTR;
20
21 /* If the firmware passed a device tree use it for U-Boot DRAM setup. */
22 extern u64 rcar_atf_boot_args[];
23
24 int dram_init(void)
25 {
26         const void *atf_fdt_blob = (const void *)(rcar_atf_boot_args[1]);
27         const void *blob;
28
29         /* Check if ATF passed us DTB. If not, fall back to builtin DTB. */
30         if (fdt_magic(atf_fdt_blob) == FDT_MAGIC)
31                 blob = atf_fdt_blob;
32         else
33                 blob = gd->fdt_blob;
34
35         return fdtdec_setup_mem_size_base_fdt(blob);
36 }
37
38 int dram_init_banksize(void)
39 {
40         const void *atf_fdt_blob = (const void *)(rcar_atf_boot_args[1]);
41         const void *blob;
42
43         /* Check if ATF passed us DTB. If not, fall back to builtin DTB. */
44         if (fdt_magic(atf_fdt_blob) == FDT_MAGIC)
45                 blob = atf_fdt_blob;
46         else
47                 blob = gd->fdt_blob;
48
49         fdtdec_setup_memory_banksize_fdt(blob);
50
51         return 0;
52 }
53
54 #if CONFIG_IS_ENABLED(OF_BOARD_SETUP) && CONFIG_IS_ENABLED(PCI)
55 int ft_board_setup(void *blob, bd_t *bd)
56 {
57         struct udevice *dev;
58         struct uclass *uc;
59         fdt_addr_t regs_addr;
60         int i, off, ret;
61
62         ret = uclass_get(UCLASS_PCI, &uc);
63         if (ret)
64                 return ret;
65
66         uclass_foreach_dev(dev, uc) {
67                 struct pci_controller hose = { 0 };
68
69                 for (i = 0; i < CONFIG_NR_DRAM_BANKS; i++) {
70                         if (hose.region_count == MAX_PCI_REGIONS) {
71                                 printf("maximum number of regions parsed, aborting\n");
72                                 break;
73                         }
74
75                         if (bd->bi_dram[i].size) {
76                                 pci_set_region(&hose.regions[hose.region_count++],
77                                                bd->bi_dram[i].start,
78                                                bd->bi_dram[i].start,
79                                                bd->bi_dram[i].size,
80                                                PCI_REGION_MEM |
81                                                PCI_REGION_PREFETCH |
82                                                PCI_REGION_SYS_MEMORY);
83                         }
84                 }
85
86                 regs_addr = devfdt_get_addr_index(dev, 0);
87                 off = fdt_node_offset_by_compat_reg(blob,
88                                 "renesas,pcie-rcar-gen3", regs_addr);
89                 if (off < 0) {
90                         printf("Failed to find PCIe node@%llx\n", regs_addr);
91                         return off;
92                 }
93
94                 fdt_pci_dma_ranges(blob, off, &hose);
95         }
96
97         return 0;
98 }
99 #endif
100 #endif