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git01.mediatek.com / filogic / atf / e0f9063cc5f5916251277d19df06899064670f5e / . / plat / socionext / uniphier / uniphier_boot_device.c
blob: 462c0859cec85d0eb60175f1d7da242a896da91c [file] [log] [blame]
Masahiro Yamada574388c2016-09-03 11:37:40 +0900[diff] [blame]1/*
2 * Copyright (c) 2017, ARM Limited and Contributors. All rights reserved.
3 *
4 * SPDX-License-Identifier: BSD-3-Clause
5 */
6
7#include <assert.h>
Masahiro Yamada574388c2016-09-03 11:37:40 +0900[diff] [blame]8#include <stdbool.h>
9#include <stddef.h>
Antonio Nino Diaze0f90632018-12-14 00:18:21 +0000[diff] [blame^]10
11#include <lib/mmio.h>
12#include <lib/utils_def.h>
Masahiro Yamada574388c2016-09-03 11:37:40 +0900[diff] [blame]13
14#include "uniphier.h"
15
16#define UNIPHIER_PINMON0 0x5f900100
17#define UNIPHIER_PINMON2 0x5f900108
18
19static int uniphier_ld11_is_usb_boot(uint32_t pinmon)
20{
21 return !!(~pinmon & 0x00000080);
22}
23
24static int uniphier_ld20_is_usb_boot(uint32_t pinmon)
25{
26 return !!(~pinmon & 0x00000780);
27}
28
29static int uniphier_pxs3_is_usb_boot(uint32_t pinmon)
30{
31 uint32_t pinmon2 = mmio_read_32(UNIPHIER_PINMON2);
32
33 return !!(pinmon2 & BIT(31));
34}
35
36static const unsigned int uniphier_ld11_boot_device_table[] = {
37 UNIPHIER_BOOT_DEVICE_NAND,
38 UNIPHIER_BOOT_DEVICE_NAND,
39 UNIPHIER_BOOT_DEVICE_NAND,
40 UNIPHIER_BOOT_DEVICE_NAND,
41 UNIPHIER_BOOT_DEVICE_NAND,
42 UNIPHIER_BOOT_DEVICE_NAND,
43 UNIPHIER_BOOT_DEVICE_NAND,
44 UNIPHIER_BOOT_DEVICE_NAND,
45 UNIPHIER_BOOT_DEVICE_NAND,
46 UNIPHIER_BOOT_DEVICE_NAND,
47 UNIPHIER_BOOT_DEVICE_NAND,
48 UNIPHIER_BOOT_DEVICE_NAND,
49 UNIPHIER_BOOT_DEVICE_NAND,
50 UNIPHIER_BOOT_DEVICE_NAND,
51 UNIPHIER_BOOT_DEVICE_NAND,
52 UNIPHIER_BOOT_DEVICE_NAND,
53 UNIPHIER_BOOT_DEVICE_NAND,
54 UNIPHIER_BOOT_DEVICE_NAND,
55 UNIPHIER_BOOT_DEVICE_NAND,
56 UNIPHIER_BOOT_DEVICE_NAND,
57 UNIPHIER_BOOT_DEVICE_NAND,
58 UNIPHIER_BOOT_DEVICE_NAND,
59 UNIPHIER_BOOT_DEVICE_NAND,
60 UNIPHIER_BOOT_DEVICE_NAND,
61 UNIPHIER_BOOT_DEVICE_EMMC,
62 UNIPHIER_BOOT_DEVICE_EMMC,
63 UNIPHIER_BOOT_DEVICE_EMMC,
64 UNIPHIER_BOOT_DEVICE_EMMC,
65 UNIPHIER_BOOT_DEVICE_EMMC,
66 UNIPHIER_BOOT_DEVICE_EMMC,
67 UNIPHIER_BOOT_DEVICE_EMMC,
68 UNIPHIER_BOOT_DEVICE_NOR,
69};
70
71static unsigned int uniphier_ld11_get_boot_device(uint32_t pinmon)
72{
73 unsigned int boot_sel = (pinmon >> 1) & 0x1f;
74
75 assert(boot_sel < ARRAY_SIZE(uniphier_ld11_boot_device_table));
76
77 return uniphier_ld11_boot_device_table[boot_sel];
78}
79
80static const unsigned int uniphier_pxs3_boot_device_table[] = {
81 UNIPHIER_BOOT_DEVICE_NAND,
82 UNIPHIER_BOOT_DEVICE_NAND,
83 UNIPHIER_BOOT_DEVICE_NAND,
84 UNIPHIER_BOOT_DEVICE_NAND,
85 UNIPHIER_BOOT_DEVICE_NAND,
86 UNIPHIER_BOOT_DEVICE_NAND,
87 UNIPHIER_BOOT_DEVICE_NAND,
88 UNIPHIER_BOOT_DEVICE_NAND,
89 UNIPHIER_BOOT_DEVICE_EMMC,
90 UNIPHIER_BOOT_DEVICE_EMMC,
91 UNIPHIER_BOOT_DEVICE_EMMC,
92 UNIPHIER_BOOT_DEVICE_EMMC,
93 UNIPHIER_BOOT_DEVICE_EMMC,
94 UNIPHIER_BOOT_DEVICE_EMMC,
95 UNIPHIER_BOOT_DEVICE_NAND,
96 UNIPHIER_BOOT_DEVICE_NAND,
97};
98
99static unsigned int uniphier_pxs3_get_boot_device(uint32_t pinmon)
100{
101 unsigned int boot_sel = (pinmon >> 1) & 0xf;
102
103 assert(boot_sel < ARRAY_SIZE(uniphier_pxs3_boot_device_table));
104
105 return uniphier_pxs3_boot_device_table[boot_sel];
106}
107
108struct uniphier_boot_device_info {
109 int (*is_usb_boot)(uint32_t pinmon);
110 unsigned int (*get_boot_device)(uint32_t pinmon);
111};
112
113static const struct uniphier_boot_device_info uniphier_boot_device_info[] = {
114 [UNIPHIER_SOC_LD11] = {
115 .is_usb_boot = uniphier_ld11_is_usb_boot,
116 .get_boot_device = uniphier_ld11_get_boot_device,
117 },
118 [UNIPHIER_SOC_LD20] = {
119 .is_usb_boot = uniphier_ld20_is_usb_boot,
120 .get_boot_device = uniphier_ld11_get_boot_device,
121 },
122 [UNIPHIER_SOC_PXS3] = {
123 .is_usb_boot = uniphier_pxs3_is_usb_boot,
124 .get_boot_device = uniphier_pxs3_get_boot_device,
125 },
126};
127
128unsigned int uniphier_get_boot_device(unsigned int soc)
129{
130 const struct uniphier_boot_device_info *info;
131 uint32_t pinmon;
132
133 assert(soc < ARRAY_SIZE(uniphier_boot_device_info));
134 info = &uniphier_boot_device_info[soc];
135
136 pinmon = mmio_read_32(UNIPHIER_PINMON0);
137
138 if (!(pinmon & BIT(29)))
139 return UNIPHIER_BOOT_DEVICE_NOR;
140
141 if (info->is_usb_boot(pinmon))
142 return UNIPHIER_BOOT_DEVICE_USB;
143
144 return info->get_boot_device(pinmon);
145}
146
147static const bool uniphier_have_onchip_scp[] = {
148 [UNIPHIER_SOC_LD11] = true,
149 [UNIPHIER_SOC_LD20] = true,
150 [UNIPHIER_SOC_PXS3] = false,
151};
152
153unsigned int uniphier_get_boot_master(unsigned int soc)
154{
155 assert(soc < ARRAY_SIZE(uniphier_have_onchip_scp));
156
157 if (uniphier_have_onchip_scp[soc]) {
158 if (mmio_read_32(UNIPHIER_PINMON0) & BIT(27))
159 return UNIPHIER_BOOT_MASTER_THIS;
160 else
161 return UNIPHIER_BOOT_MASTER_SCP;
162 } else {
163 return UNIPHIER_BOOT_MASTER_EXT;
164 }
165}