projects / J-u-boot.git / blame
| Commit | Line | Data |
|---|---|---|
| 83d290c5 | 1 | // SPDX-License-Identifier: GPL-2.0+ |
| 6be3c9fc SW |
2 | /* |
| 3 | * (C) Copyright 2012 Stephen Warren | |
| 6be3c9fc SW |
4 | */ |
| 5 | ||
| 6 | #include <common.h> | |
| ea843b6d SG |
7 | #include <dm.h> |
| 8 | #include <video.h> | |
| 6be3c9fc | 9 | #include <asm/arch/mbox.h> |
| 2e4170b6 | 10 | #include <asm/arch/msg.h> |
| 6be3c9fc | 11 | |
| ea843b6d | 12 | static int bcm2835_video_probe(struct udevice *dev) |
| 6be3c9fc | 13 | { |
| ea843b6d SG |
14 | struct video_uc_platdata *plat = dev_get_uclass_platdata(dev); |
| 15 | struct video_priv *uc_priv = dev_get_uclass_priv(dev); | |
| 6be3c9fc | 16 | int ret; |
| ea843b6d | 17 | int w, h, pitch; |
| 7cac2fce | 18 | ulong fb_base, fb_size, fb_start, fb_end; |
| 6be3c9fc SW |
19 | |
| 20 | debug("bcm2835: Query resolution...\n"); | |
| 2e4170b6 | 21 | ret = bcm2835_get_video_size(&w, &h); |
| ea843b6d SG |
22 | if (ret) |
| 23 | return -EIO; | |
| 6be3c9fc | 24 | |
| 6be3c9fc | 25 | debug("bcm2835: Setting up display for %d x %d\n", w, h); |
| 7cac2fce SG |
26 | ret = bcm2835_set_video_params(&w, &h, 32, BCM2835_MBOX_PIXEL_ORDER_RGB, |
| 27 | BCM2835_MBOX_ALPHA_MODE_IGNORED, | |
| ea843b6d | 28 | &fb_base, &fb_size, &pitch); |
| 6be3c9fc SW |
29 | |
| 30 | debug("bcm2835: Final resolution is %d x %d\n", w, h); | |
| 31 | ||
| 99de254e | 32 | /* Enable dcache for the frame buffer */ |
| 7cac2fce SG |
33 | fb_start = fb_base & ~(MMU_SECTION_SIZE - 1); |
| 34 | fb_end = fb_base + fb_size; | |
| 99de254e AG |
35 | fb_end = ALIGN(fb_end, 1 << MMU_SECTION_SHIFT); |
| 36 | mmu_set_region_dcache_behaviour(fb_start, fb_end - fb_start, | |
| 7cac2fce | 37 | DCACHE_WRITEBACK); |
| ea843b6d | 38 | video_set_flush_dcache(dev, true); |
| 6be3c9fc | 39 | |
| ea843b6d SG |
40 | uc_priv->xsize = w; |
| 41 | uc_priv->ysize = h; | |
| 42 | uc_priv->bpix = VIDEO_BPP32; | |
| 43 | plat->base = fb_base; | |
| 44 | plat->size = fb_size; | |
| 44376eff | 45 | |
| ea843b6d | 46 | return 0; |
| 44376eff | 47 | } |
| ea843b6d SG |
48 | |
| 49 | static const struct udevice_id bcm2835_video_ids[] = { | |
| 50 | { .compatible = "brcm,bcm2835-hdmi" }, | |
| 51 | { } | |
| 52 | }; | |
| 53 | ||
| 54 | U_BOOT_DRIVER(bcm2835_video) = { | |
| 55 | .name = "bcm2835_video", | |
| 56 | .id = UCLASS_VIDEO, | |
| 57 | .of_match = bcm2835_video_ids, | |
| 58 | .probe = bcm2835_video_probe, | |
| 59 | }; |