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https://github.com/smaeul/u-boot.git
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d678a59d2d
When bringing in the series 'arm: dts: am62-beagleplay: Fix Beagleplay Ethernet"' I failed to notice that b4 noticed it was based on next and so took that as the base commit and merged that part of next to master. This reverts commit c8ffd1356d42223cbb8c86280a083cc3c93e6426, reversing changes made to 2ee6f3a5f7550de3599faef9704e166e5dcace35. Reported-by: Jonas Karlman <jonas@kwiboo.se> Signed-off-by: Tom Rini <trini@konsulko.com>
83 lines
1.9 KiB
C
83 lines
1.9 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* (C) Copyright 2012 Stephen Warren
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*/
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#include <common.h>
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#include <dm.h>
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#include <log.h>
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#include <video.h>
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#include <asm/arch/mbox.h>
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#include <asm/arch/msg.h>
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#include <asm/cache.h>
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static int bcm2835_video_probe(struct udevice *dev)
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{
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struct video_uc_plat *plat = dev_get_uclass_plat(dev);
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struct video_priv *uc_priv = dev_get_uclass_priv(dev);
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int ret;
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int w, h, pitch, bpp;
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ulong fb_base, fb_size, fb_start, fb_end;
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debug("bcm2835: Query resolution...\n");
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ret = bcm2835_get_video_size(&w, &h);
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if (ret || w == 0 || h == 0)
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return -EIO;
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debug("bcm2835: Setting up display for %d x %d\n", w, h);
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ret = bcm2835_set_video_params(&w, &h, 32, BCM2835_MBOX_PIXEL_ORDER_RGB,
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BCM2835_MBOX_ALPHA_MODE_IGNORED,
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&fb_base, &fb_size, &pitch);
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if (ret)
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return -EIO;
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debug("bcm2835: Final resolution is %d x %d\n", w, h);
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/* Enable dcache for the frame buffer */
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fb_start = fb_base & ~(MMU_SECTION_SIZE - 1);
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fb_end = fb_base + fb_size;
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fb_end = ALIGN(fb_end, 1 << MMU_SECTION_SHIFT);
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mmu_set_region_dcache_behaviour(fb_start, fb_end - fb_start,
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DCACHE_WRITEBACK);
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video_set_flush_dcache(dev, true);
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bpp = pitch / w;
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switch (bpp) {
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case 2:
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uc_priv->bpix = VIDEO_BPP16;
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break;
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case 4:
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uc_priv->bpix = VIDEO_BPP32;
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break;
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default:
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printf("bcm2835: unexpected bpp %d, pitch %d, width %d\n",
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bpp, pitch, w);
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uc_priv->bpix = VIDEO_BPP32;
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break;
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}
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uc_priv->xsize = w;
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uc_priv->ysize = h;
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plat->base = fb_base;
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plat->size = fb_size;
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return 0;
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}
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static const struct udevice_id bcm2835_video_ids[] = {
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{ .compatible = "brcm,bcm2835-hdmi" },
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{ .compatible = "brcm,bcm2711-hdmi0" },
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{ .compatible = "brcm,bcm2708-fb" },
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#if !IS_ENABLED(CONFIG_VIDEO_DT_SIMPLEFB)
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{ .compatible = "simple-framebuffer" },
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#endif
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{ }
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};
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U_BOOT_DRIVER(bcm2835_video) = {
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.name = "bcm2835_video",
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.id = UCLASS_VIDEO,
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.of_match = bcm2835_video_ids,
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.probe = bcm2835_video_probe,
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};
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