| David Brazdil | 0f672f6 | 2019-12-10 10:32:29 +0000 | [diff] [blame^] | 1 | // SPDX-License-Identifier: GPL-2.0-or-later |
| Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 2 | /* |
| 3 | * Framebuffer device registration for TI OMAP platforms |
| 4 | * |
| 5 | * Copyright (C) 2006 Nokia Corporation |
| 6 | * Author: Imre Deak <imre.deak@nokia.com> |
| Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 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 |