1 | // SPDX-License-Identifier: GPL-2.0-or-later |
2 | /* |
3 | * Framebuffer device registration for TI OMAP platforms |
4 | * |
5 | * Copyright (C) 2006 Nokia Corporation |
6 | * Author: Imre Deak <imre.deak@nokia.com> |
7 | */ |
8 | |
9 | #include <linux/module.h> |
10 | #include <linux/kernel.h> |
11 | #include <linux/mm.h> |
12 | #include <linux/init.h> |
13 | #include <linux/platform_device.h> |
14 | #include <linux/memblock.h> |
15 | #include <linux/io.h> |
16 | #include <linux/omapfb.h> |
17 | #include <linux/dma-mapping.h> |
18 | |
19 | #include <asm/mach/map.h> |
20 | |
21 | #include "soc.h" |
22 | #include "display.h" |
23 | |
24 | #ifdef CONFIG_OMAP2_VRFB |
25 | |
26 | /* |
27 | * The first memory resource is the register region for VRFB, |
28 | * the rest are VRFB virtual memory areas for each VRFB context. |
29 | */ |
30 | |
31 | static const struct resource omap2_vrfb_resources[] = { |
32 | DEFINE_RES_MEM_NAMED(0x68008000u, 0x40, "vrfb-regs" ), |
33 | DEFINE_RES_MEM_NAMED(0x70000000u, 0x4000000, "vrfb-area-0" ), |
34 | DEFINE_RES_MEM_NAMED(0x74000000u, 0x4000000, "vrfb-area-1" ), |
35 | DEFINE_RES_MEM_NAMED(0x78000000u, 0x4000000, "vrfb-area-2" ), |
36 | DEFINE_RES_MEM_NAMED(0x7c000000u, 0x4000000, "vrfb-area-3" ), |
37 | }; |
38 | |
39 | static const struct resource omap3_vrfb_resources[] = { |
40 | DEFINE_RES_MEM_NAMED(0x6C000180u, 0xc0, "vrfb-regs" ), |
41 | DEFINE_RES_MEM_NAMED(0x70000000u, 0x4000000, "vrfb-area-0" ), |
42 | DEFINE_RES_MEM_NAMED(0x74000000u, 0x4000000, "vrfb-area-1" ), |
43 | DEFINE_RES_MEM_NAMED(0x78000000u, 0x4000000, "vrfb-area-2" ), |
44 | DEFINE_RES_MEM_NAMED(0x7c000000u, 0x4000000, "vrfb-area-3" ), |
45 | DEFINE_RES_MEM_NAMED(0xe0000000u, 0x4000000, "vrfb-area-4" ), |
46 | DEFINE_RES_MEM_NAMED(0xe4000000u, 0x4000000, "vrfb-area-5" ), |
47 | DEFINE_RES_MEM_NAMED(0xe8000000u, 0x4000000, "vrfb-area-6" ), |
48 | DEFINE_RES_MEM_NAMED(0xec000000u, 0x4000000, "vrfb-area-7" ), |
49 | DEFINE_RES_MEM_NAMED(0xf0000000u, 0x4000000, "vrfb-area-8" ), |
50 | DEFINE_RES_MEM_NAMED(0xf4000000u, 0x4000000, "vrfb-area-9" ), |
51 | DEFINE_RES_MEM_NAMED(0xf8000000u, 0x4000000, "vrfb-area-10" ), |
52 | DEFINE_RES_MEM_NAMED(0xfc000000u, 0x4000000, "vrfb-area-11" ), |
53 | }; |
54 | |
55 | int __init omap_init_vrfb(void) |
56 | { |
57 | struct platform_device *pdev; |
58 | const struct resource *res; |
59 | unsigned int num_res; |
60 | |
61 | if (cpu_is_omap24xx()) { |
62 | res = omap2_vrfb_resources; |
63 | num_res = ARRAY_SIZE(omap2_vrfb_resources); |
64 | } else if (cpu_is_omap34xx()) { |
65 | res = omap3_vrfb_resources; |
66 | num_res = ARRAY_SIZE(omap3_vrfb_resources); |
67 | } else { |
68 | return 0; |
69 | } |
70 | |
71 | pdev = platform_device_register_resndata(NULL, "omapvrfb" , -1, |
72 | res, num_res, NULL, 0); |
73 | |
74 | return PTR_ERR_OR_ZERO(pdev); |
75 | } |
76 | #else |
77 | int __init omap_init_vrfb(void) { return 0; } |
78 | #endif |
79 | |
80 | #if IS_ENABLED(CONFIG_FB_OMAP2) |
81 | |
82 | static u64 omap_fb_dma_mask = ~(u32)0; |
83 | static struct omapfb_platform_data omapfb_config; |
84 | |
85 | static struct platform_device omap_fb_device = { |
86 | .name = "omapfb" , |
87 | .id = -1, |
88 | .dev = { |
89 | .dma_mask = &omap_fb_dma_mask, |
90 | .coherent_dma_mask = DMA_BIT_MASK(32), |
91 | .platform_data = &omapfb_config, |
92 | }, |
93 | .num_resources = 0, |
94 | }; |
95 | |
96 | int __init omap_init_fb(void) |
97 | { |
98 | return platform_device_register(&omap_fb_device); |
99 | } |
100 | #else |
101 | int __init omap_init_fb(void) { return 0; } |
102 | #endif |
103 | |