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, lookup: 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 | |