u-boot/drivers/video/bcm2835.c
Simon Glass ea843b6dab dm: video: arm: rpi: Convert to use driver model for video
Adjust the video driver to work with driver model and move over existing
baords. There is no need to keep the old code.

We can also drop setting of CONFIG_FB_ADDR since driver model doesn't have
this problem.

Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Anatolij Gustschin <agust@denx.de>
2017-05-09 20:27:17 -04:00

60 lines
1.5 KiB
C

/*
* (C) Copyright 2012 Stephen Warren
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <dm.h>
#include <video.h>
#include <asm/arch/mbox.h>
#include <asm/arch/msg.h>
static int bcm2835_video_probe(struct udevice *dev)
{
struct video_uc_platdata *plat = dev_get_uclass_platdata(dev);
struct video_priv *uc_priv = dev_get_uclass_priv(dev);
int ret;
int w, h, pitch;
ulong fb_base, fb_size, fb_start, fb_end;
debug("bcm2835: Query resolution...\n");
ret = bcm2835_get_video_size(&w, &h);
if (ret)
return -EIO;
debug("bcm2835: Setting up display for %d x %d\n", w, h);
ret = bcm2835_set_video_params(&w, &h, 32, BCM2835_MBOX_PIXEL_ORDER_RGB,
BCM2835_MBOX_ALPHA_MODE_IGNORED,
&fb_base, &fb_size, &pitch);
debug("bcm2835: Final resolution is %d x %d\n", w, h);
/* Enable dcache for the frame buffer */
fb_start = fb_base & ~(MMU_SECTION_SIZE - 1);
fb_end = fb_base + fb_size;
fb_end = ALIGN(fb_end, 1 << MMU_SECTION_SHIFT);
mmu_set_region_dcache_behaviour(fb_start, fb_end - fb_start,
DCACHE_WRITEBACK);
video_set_flush_dcache(dev, true);
uc_priv->xsize = w;
uc_priv->ysize = h;
uc_priv->bpix = VIDEO_BPP32;
plat->base = fb_base;
plat->size = fb_size;
return 0;
}
static const struct udevice_id bcm2835_video_ids[] = {
{ .compatible = "brcm,bcm2835-hdmi" },
{ }
};
U_BOOT_DRIVER(bcm2835_video) = {
.name = "bcm2835_video",
.id = UCLASS_VIDEO,
.of_match = bcm2835_video_ids,
.probe = bcm2835_video_probe,
};