diff options
Diffstat (limited to 'arch/arm/mach-bcm/board_bcm281xx.c')
-rw-r--r-- | arch/arm/mach-bcm/board_bcm281xx.c | 75 |
1 files changed, 75 insertions, 0 deletions
diff --git a/arch/arm/mach-bcm/board_bcm281xx.c b/arch/arm/mach-bcm/board_bcm281xx.c new file mode 100644 index 000000000000..8d9f931164bb --- /dev/null +++ b/arch/arm/mach-bcm/board_bcm281xx.c | |||
@@ -0,0 +1,75 @@ | |||
1 | /* | ||
2 | * Copyright (C) 2012-2013 Broadcom Corporation | ||
3 | * | ||
4 | * This program is free software; you can redistribute it and/or | ||
5 | * modify it under the terms of the GNU General Public License as | ||
6 | * published by the Free Software Foundation version 2. | ||
7 | * | ||
8 | * This program is distributed "as is" WITHOUT ANY WARRANTY of any | ||
9 | * kind, whether express or implied; without even the implied warranty | ||
10 | * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
11 | * GNU General Public License for more details. | ||
12 | */ | ||
13 | |||
14 | #include <linux/of_platform.h> | ||
15 | #include <linux/init.h> | ||
16 | #include <linux/device.h> | ||
17 | #include <linux/platform_device.h> | ||
18 | #include <linux/clocksource.h> | ||
19 | |||
20 | #include <asm/mach/arch.h> | ||
21 | #include <asm/mach/time.h> | ||
22 | #include <asm/hardware/cache-l2x0.h> | ||
23 | |||
24 | #include "bcm_kona_smc.h" | ||
25 | #include "kona.h" | ||
26 | |||
27 | static int __init kona_l2_cache_init(void) | ||
28 | { | ||
29 | if (!IS_ENABLED(CONFIG_CACHE_L2X0)) | ||
30 | return 0; | ||
31 | |||
32 | if (bcm_kona_smc_init() < 0) { | ||
33 | pr_info("Kona secure API not available. Skipping L2 init\n"); | ||
34 | return 0; | ||
35 | } | ||
36 | |||
37 | bcm_kona_smc(SSAPI_ENABLE_L2_CACHE, 0, 0, 0, 0); | ||
38 | |||
39 | /* | ||
40 | * The aux_val and aux_mask have no effect since L2 cache is already | ||
41 | * enabled. Pass 0s for aux_val and 1s for aux_mask for default value. | ||
42 | */ | ||
43 | return l2x0_of_init(0, ~0); | ||
44 | } | ||
45 | |||
46 | static void bcm_board_setup_restart(void) | ||
47 | { | ||
48 | struct device_node *np; | ||
49 | |||
50 | np = of_find_compatible_node(NULL, NULL, "brcm,bcm11351"); | ||
51 | if (np) { | ||
52 | if (of_device_is_available(np)) | ||
53 | bcm_kona_setup_restart(); | ||
54 | of_node_put(np); | ||
55 | } | ||
56 | /* Restart setup for other boards goes here */ | ||
57 | } | ||
58 | |||
59 | static void __init board_init(void) | ||
60 | { | ||
61 | of_platform_populate(NULL, of_default_bus_match_table, NULL, | ||
62 | &platform_bus); | ||
63 | |||
64 | bcm_board_setup_restart(); | ||
65 | kona_l2_cache_init(); | ||
66 | } | ||
67 | |||
68 | static const char * const bcm11351_dt_compat[] = { "brcm,bcm11351", NULL, }; | ||
69 | |||
70 | DT_MACHINE_START(BCM11351_DT, "Broadcom Application Processor") | ||
71 | .init_time = clocksource_of_init, | ||
72 | .init_machine = board_init, | ||
73 | .restart = bcm_kona_restart, | ||
74 | .dt_compat = bcm11351_dt_compat, | ||
75 | MACHINE_END | ||