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https://github.com/brain-hackers/u-boot-brain
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caa4daa2ae
We use 'priv' for private data but often use 'platdata' for platform data. We can't really use 'pdata' since that is ambiguous (it could mean private or platform data). Rename some of the latter variables to end with 'plat' for consistency. Signed-off-by: Simon Glass <sjg@chromium.org>
65 lines
1.6 KiB
C
65 lines
1.6 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_platdata *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;
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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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uc_priv->xsize = w;
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uc_priv->ysize = h;
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uc_priv->bpix = VIDEO_BPP32;
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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,bcm2708-fb" },
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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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