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
31static 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
39static 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
55int __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
77int __init omap_init_vrfb(void) { return 0; }
78#endif
79
80#if IS_ENABLED(CONFIG_FB_OMAP2)
81
82static u64 omap_fb_dma_mask = ~(u32)0;
83static struct omapfb_platform_data omapfb_config;
84
85static 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
96int __init omap_init_fb(void)
97{
98	return platform_device_register(&omap_fb_device);
99}
100#else
101int __init omap_init_fb(void) { return 0; }
102#endif
103