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
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TOMOYO® is a registered trademark of NTT DATA CORPORATION.