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