1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
|
// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright 2019-2020 NXP
*
* PCIe DT fixup for NXP Layerscape SoCs
* Author: Wasim Khan <wasim.khan@nxp.com>
*
*/
#include <common.h>
#include <init.h>
#include <asm/arch/clock.h>
#include <asm/arch/soc.h>
#include <linux/libfdt.h>
#include <fdt_support.h>
#include "pcie_layerscape_fixup_common.h"
void ft_pci_setup(void *blob, struct bd_info *bd)
{
#if defined(CONFIG_PCIE_LAYERSCAPE_GEN4)
uint svr;
svr = SVR_SOC_VER(get_svr());
if (svr == SVR_LX2160A && IS_SVR_REV(get_svr(), 1, 0))
ft_pci_setup_ls_gen4(blob, bd);
else
#endif /* CONFIG_PCIE_LAYERSCAPE_GEN4 */
ft_pci_setup_ls(blob, bd);
}
#if defined(CONFIG_FSL_LAYERSCAPE)
static int lx2_board_fix_fdt(void *fdt)
{
char *reg_name, *old_str, *new_str;
const char *reg_names;
int names_len, old_str_len, new_str_len, remaining_str_len;
struct str_map {
char *old_str;
char *new_str;
} reg_names_map[] = {
{ "csr_axi_slave", "regs" },
{ "config_axi_slave", "config" }
};
int off = -1, i;
const fdt32_t *prop;
u32 ob_wins, ib_wins;
off = fdt_node_offset_by_compatible(fdt, -1, "fsl,lx2160a-pcie");
while (off != -FDT_ERR_NOTFOUND) {
fdt_setprop(fdt, off, "compatible", "fsl,ls2088a-pcie",
strlen("fsl,ls2088a-pcie") + 1);
reg_names = fdt_getprop(fdt, off, "reg-names", &names_len);
if (!reg_names)
continue;
reg_name = (char *)reg_names;
remaining_str_len = names_len - (reg_name - reg_names);
i = 0;
while ((i < ARRAY_SIZE(reg_names_map)) && remaining_str_len) {
old_str = reg_names_map[i].old_str;
new_str = reg_names_map[i].new_str;
old_str_len = strlen(old_str);
new_str_len = strlen(new_str);
if (memcmp(reg_name, old_str, old_str_len) == 0) {
/* first only leave required bytes for new_str
* and copy rest of the string after it
*/
memcpy(reg_name + new_str_len,
reg_name + old_str_len,
remaining_str_len - old_str_len);
/* Now copy new_str */
memcpy(reg_name, new_str, new_str_len);
names_len -= old_str_len;
names_len += new_str_len;
i++;
}
reg_name = memchr(reg_name, '\0', remaining_str_len);
if (!reg_name)
break;
reg_name += 1;
remaining_str_len = names_len - (reg_name - reg_names);
}
fdt_setprop(fdt, off, "reg-names", reg_names, names_len);
fdt_delprop(fdt, off, "apio-wins");
fdt_delprop(fdt, off, "ppio-wins");
off = fdt_node_offset_by_compatible(fdt, off,
"fsl,lx2160a-pcie");
}
/* Fixup PCIe EP nodes */
off = -1;
off = fdt_node_offset_by_compatible(fdt, off, "fsl,lx2160a-pcie-ep");
while (off != -FDT_ERR_NOTFOUND) {
fdt_setprop_string(fdt, off, "compatible",
"fsl,lx2160ar2-pcie-ep");
prop = fdt_getprop(fdt, off, "apio-wins", NULL);
if (!prop) {
printf("%s: Failed to fixup PCIe EP node @0x%x\n",
__func__, off);
off = fdt_node_offset_by_compatible(fdt, off,
"fsl,lx2160a-pcie-ep");
continue;
}
ob_wins = fdt32_to_cpu(*prop);
ib_wins = (ob_wins == 256) ? 24 : 8;
fdt_setprop_u32(fdt, off, "num-ib-windows", ib_wins);
fdt_setprop_u32(fdt, off, "num-ob-windows", ob_wins);
fdt_delprop(fdt, off, "apio-wins");
off = fdt_node_offset_by_compatible(fdt, off,
"fsl,lx2160a-pcie-ep");
}
return 0;
}
int pcie_board_fix_fdt(void *fdt)
{
uint svr;
svr = SVR_SOC_VER(get_svr());
if ((svr == SVR_LX2160A || svr == SVR_LX2162A ||
svr == SVR_LX2120A || svr == SVR_LX2080A ||
svr == SVR_LX2122A || svr == SVR_LX2082A) &&
IS_SVR_REV(get_svr(), 2, 0))
return lx2_board_fix_fdt(fdt);
return 0;
}
#if defined(CONFIG_ARCH_LX2160A) || defined(CONFIG_ARCH_LX2162A)
/* returns the next available streamid for pcie, -errno if failed */
int pcie_next_streamid(int currentid, int idx)
{
if (currentid > FSL_PEX_STREAM_ID_END)
return -EINVAL;
return currentid | ((idx + 1) << 11);
}
#else
/* returns the next available streamid for pcie, -errno if failed */
int pcie_next_streamid(int currentid, int idx)
{
static int next_stream_id = FSL_PEX_STREAM_ID_START;
if (next_stream_id > FSL_PEX_STREAM_ID_END)
return -EINVAL;
return next_stream_id++;
}
#endif
#endif /* CONFIG_FSL_LAYERSCAPE */
|
