1 | // SPDX-License-Identifier: GPL-2.0-or-later |
2 | /* |
3 | * Setup code for SAMA5 |
4 | * |
5 | * Copyright (C) 2013 Atmel, |
6 | * 2013 Ludovic Desroches <ludovic.desroches@atmel.com> |
7 | */ |
8 | |
9 | #include <linux/of.h> |
10 | #include <linux/of_platform.h> |
11 | |
12 | #include <asm/hardware/cache-l2x0.h> |
13 | #include <asm/mach/arch.h> |
14 | #include <asm/mach/map.h> |
15 | #include <asm/outercache.h> |
16 | #include <asm/system_misc.h> |
17 | |
18 | #include "generic.h" |
19 | #include "sam_secure.h" |
20 | |
21 | static void sama5_l2c310_write_sec(unsigned long val, unsigned reg) |
22 | { |
23 | /* OP-TEE configures the L2 cache and does not allow modifying it yet */ |
24 | } |
25 | |
26 | static void __init sama5_secure_cache_init(void) |
27 | { |
28 | sam_secure_init(); |
29 | if (IS_ENABLED(CONFIG_OUTER_CACHE) && sam_linux_is_optee_available()) |
30 | outer_cache.write_sec = sama5_l2c310_write_sec; |
31 | } |
32 | |
33 | static void __init sama5_dt_device_init(void) |
34 | { |
35 | of_platform_default_populate(NULL, NULL, NULL); |
36 | sama5_pm_init(); |
37 | } |
38 | |
39 | static const char *const sama5_dt_board_compat[] __initconst = { |
40 | "atmel,sama5" , |
41 | NULL |
42 | }; |
43 | |
44 | DT_MACHINE_START(sama5_dt, "Atmel SAMA5" ) |
45 | /* Maintainer: Atmel */ |
46 | .init_machine = sama5_dt_device_init, |
47 | .dt_compat = sama5_dt_board_compat, |
48 | MACHINE_END |
49 | |
50 | static const char *const sama5_alt_dt_board_compat[] __initconst = { |
51 | "atmel,sama5d4" , |
52 | NULL |
53 | }; |
54 | |
55 | DT_MACHINE_START(sama5_alt_dt, "Atmel SAMA5" ) |
56 | /* Maintainer: Atmel */ |
57 | .init_machine = sama5_dt_device_init, |
58 | .dt_compat = sama5_alt_dt_board_compat, |
59 | .l2c_aux_mask = ~0UL, |
60 | MACHINE_END |
61 | |
62 | static void __init sama5d2_init(void) |
63 | { |
64 | of_platform_default_populate(NULL, NULL, NULL); |
65 | sama5d2_pm_init(); |
66 | } |
67 | |
68 | static const char *const sama5d2_compat[] __initconst = { |
69 | "atmel,sama5d2" , |
70 | NULL |
71 | }; |
72 | |
73 | DT_MACHINE_START(sama5d2, "Atmel SAMA5" ) |
74 | /* Maintainer: Atmel */ |
75 | .init_machine = sama5d2_init, |
76 | .init_early = sama5_secure_cache_init, |
77 | .dt_compat = sama5d2_compat, |
78 | .l2c_aux_mask = ~0UL, |
79 | MACHINE_END |
80 | |