1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3 * arch/arm/mach-spear3xx/spear300.c
4 *
5 * SPEAr300 machine source file
6 *
7 * Copyright (C) 2009-2012 ST Microelectronics
8 * Viresh Kumar <vireshk@kernel.org>
9 */
10
11 #define pr_fmt(fmt) "SPEAr300: " fmt
12
13 #include <linux/amba/pl08x.h>
14 #include <linux/of_platform.h>
15 #include <asm/mach/arch.h>
16 #include "generic.h"
17 #include "spear.h"
18
19 /* DMAC platform data's slave info */
20 struct pl08x_channel_data spear300_dma_info[] = {
21 {
22 .bus_id = "uart0_rx",
23 .min_signal = 2,
24 .max_signal = 2,
25 .muxval = 0,
26 .periph_buses = PL08X_AHB1,
27 }, {
28 .bus_id = "uart0_tx",
29 .min_signal = 3,
30 .max_signal = 3,
31 .muxval = 0,
32 .periph_buses = PL08X_AHB1,
33 }, {
34 .bus_id = "ssp0_rx",
35 .min_signal = 8,
36 .max_signal = 8,
37 .muxval = 0,
38 .periph_buses = PL08X_AHB1,
39 }, {
40 .bus_id = "ssp0_tx",
41 .min_signal = 9,
42 .max_signal = 9,
43 .muxval = 0,
44 .periph_buses = PL08X_AHB1,
45 }, {
46 .bus_id = "i2c_rx",
47 .min_signal = 10,
48 .max_signal = 10,
49 .muxval = 0,
50 .periph_buses = PL08X_AHB1,
51 }, {
52 .bus_id = "i2c_tx",
53 .min_signal = 11,
54 .max_signal = 11,
55 .muxval = 0,
56 .periph_buses = PL08X_AHB1,
57 }, {
58 .bus_id = "irda",
59 .min_signal = 12,
60 .max_signal = 12,
61 .muxval = 0,
62 .periph_buses = PL08X_AHB1,
63 }, {
64 .bus_id = "adc",
65 .min_signal = 13,
66 .max_signal = 13,
67 .muxval = 0,
68 .periph_buses = PL08X_AHB1,
69 }, {
70 .bus_id = "to_jpeg",
71 .min_signal = 14,
72 .max_signal = 14,
73 .muxval = 0,
74 .periph_buses = PL08X_AHB1,
75 }, {
76 .bus_id = "from_jpeg",
77 .min_signal = 15,
78 .max_signal = 15,
79 .muxval = 0,
80 .periph_buses = PL08X_AHB1,
81 }, {
82 .bus_id = "ras0_rx",
83 .min_signal = 0,
84 .max_signal = 0,
85 .muxval = 1,
86 .periph_buses = PL08X_AHB1,
87 }, {
88 .bus_id = "ras0_tx",
89 .min_signal = 1,
90 .max_signal = 1,
91 .muxval = 1,
92 .periph_buses = PL08X_AHB1,
93 }, {
94 .bus_id = "ras1_rx",
95 .min_signal = 2,
96 .max_signal = 2,
97 .muxval = 1,
98 .periph_buses = PL08X_AHB1,
99 }, {
100 .bus_id = "ras1_tx",
101 .min_signal = 3,
102 .max_signal = 3,
103 .muxval = 1,
104 .periph_buses = PL08X_AHB1,
105 }, {
106 .bus_id = "ras2_rx",
107 .min_signal = 4,
108 .max_signal = 4,
109 .muxval = 1,
110 .periph_buses = PL08X_AHB1,
111 }, {
112 .bus_id = "ras2_tx",
113 .min_signal = 5,
114 .max_signal = 5,
115 .muxval = 1,
116 .periph_buses = PL08X_AHB1,
117 }, {
118 .bus_id = "ras3_rx",
119 .min_signal = 6,
120 .max_signal = 6,
121 .muxval = 1,
122 .periph_buses = PL08X_AHB1,
123 }, {
124 .bus_id = "ras3_tx",
125 .min_signal = 7,
126 .max_signal = 7,
127 .muxval = 1,
128 .periph_buses = PL08X_AHB1,
129 }, {
130 .bus_id = "ras4_rx",
131 .min_signal = 8,
132 .max_signal = 8,
133 .muxval = 1,
134 .periph_buses = PL08X_AHB1,
135 }, {
136 .bus_id = "ras4_tx",
137 .min_signal = 9,
138 .max_signal = 9,
139 .muxval = 1,
140 .periph_buses = PL08X_AHB1,
141 }, {
142 .bus_id = "ras5_rx",
143 .min_signal = 10,
144 .max_signal = 10,
145 .muxval = 1,
146 .periph_buses = PL08X_AHB1,
147 }, {
148 .bus_id = "ras5_tx",
149 .min_signal = 11,
150 .max_signal = 11,
151 .muxval = 1,
152 .periph_buses = PL08X_AHB1,
153 }, {
154 .bus_id = "ras6_rx",
155 .min_signal = 12,
156 .max_signal = 12,
157 .muxval = 1,
158 .periph_buses = PL08X_AHB1,
159 }, {
160 .bus_id = "ras6_tx",
161 .min_signal = 13,
162 .max_signal = 13,
163 .muxval = 1,
164 .periph_buses = PL08X_AHB1,
165 }, {
166 .bus_id = "ras7_rx",
167 .min_signal = 14,
168 .max_signal = 14,
169 .muxval = 1,
170 .periph_buses = PL08X_AHB1,
171 }, {
172 .bus_id = "ras7_tx",
173 .min_signal = 15,
174 .max_signal = 15,
175 .muxval = 1,
176 .periph_buses = PL08X_AHB1,
177 },
178 };
179
180 /* Add SPEAr300 auxdata to pass platform data */
181 static struct of_dev_auxdata spear300_auxdata_lookup[] __initdata = {
182 OF_DEV_AUXDATA("arm,pl022", SPEAR3XX_ICM1_SSP_BASE, NULL,
183 &pl022_plat_data),
184 OF_DEV_AUXDATA("arm,pl080", SPEAR_ICM3_DMA_BASE, NULL,
185 &pl080_plat_data),
186 {}
187 };
188
189 static void __init spear300_dt_init(void)
190 {
191 pl080_plat_data.slave_channels = spear300_dma_info;
192 pl080_plat_data.num_slave_channels = ARRAY_SIZE(spear300_dma_info);
193
194 of_platform_default_populate(NULL, spear300_auxdata_lookup, NULL);
195 }
196
197 static const char * const spear300_dt_board_compat[] = {
198 "st,spear300",
199 "st,spear300-evb",
200 NULL,
201 };
202
203 static void __init spear300_map_io(void)
204 {
205 spear3xx_map_io();
206 }
207
208 DT_MACHINE_START(SPEAR300_DT, "ST SPEAr300 SoC with Flattened Device Tree")
209 .map_io = spear300_map_io,
210 .init_time = spear3xx_timer_init,
211 .init_machine = spear300_dt_init,
212 .restart = spear_restart,
213 .dt_compat = spear300_dt_board_compat,
214 MACHINE_END
215
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