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video: fsl_dcu_fb: add DM_VIDEO support

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Extend the driver to build with DM_VIDEO enabled. DTS files
must additionally include 'u-boot,dm-pre-reloc' property in
soc and child nodes to enable driver binding to fsl_dcu_fb device.

Currently display timings aren't obtained from DT.

Signed-off-by: Igor Opaniuk <igor.opaniuk@toradex.com>
Reviewed-by: Oleksandr Suvorov <oleksandr.suvorov@toradex.com>
This commit is contained in:
Igor Opaniuk 2019-06-10 14:47:50 +03:00 committed by Anatolij Gustschin
parent a6eedb670d
commit be3f1a56bf
3 changed files with 100 additions and 24 deletions
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4
board/toradex/colibri_vf/colibri_vf.c
View file

@ -430,7 +430,9 @@ int checkboard(void)
#if defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP)
int ft_board_setup(void *blob, bd_t *bd)
{
#ifndef CONFIG_DM_VIDEO
int ret = 0;
#endif
#ifdef CONFIG_FDT_FIXUP_PARTITIONS
static const struct node_info nodes[] = {
{ "fsl,vf610-nfc", MTD_DEV_TYPE_NAND, }, /* NAND flash */
@ -440,7 +442,7 @@ int ft_board_setup(void *blob, bd_t *bd)
puts(" Updating MTD partitions...\n");
fdt_fixup_mtdparts(blob, nodes, ARRAY_SIZE(nodes));
#endif
#ifdef CONFIG_VIDEO_FSL_DCU_FB
#if defined(CONFIG_VIDEO_FSL_DCU_FB) && !defined(CONFIG_DM_VIDEO)
ret = fsl_dcu_fixedfb_setup(blob);
if (ret)
return ret;

2
drivers/video/Kconfig
View file

@ -484,7 +484,7 @@ config VIDEO_IVYBRIDGE_IGD
config VIDEO_FSL_DCU_FB
bool "Enable Freescale Display Control Unit"
depends on VIDEO
depends on VIDEO || DM_VIDEO
help
This enables support for Freescale Display Control Unit (DCU4)
module found on Freescale Vybrid and QorIQ family of SoCs.

118
drivers/video/fsl_dcu_fb.c
View file

@ -8,10 +8,12 @@
#include <asm/io.h>
#include <common.h>
#include <dm.h>
#include <fdt_support.h>
#include <fsl_dcu_fb.h>
#include <linux/fb.h>
#include <malloc.h>
#include <video.h>
#include <video_fb.h>
#include "videomodes.h"
@ -219,8 +221,6 @@ struct dcu_reg {
u32 ctrldescl[DCU_LAYER_MAX_NUM][16];
};
static struct fb_info info;
static void reset_total_layers(void)
{
struct dcu_reg *regs = (struct dcu_reg *)CONFIG_SYS_DCU_ADDR;
@ -302,7 +302,11 @@ int fsl_dcu_init(struct fb_info *fbinfo, unsigned int xres,
{
struct dcu_reg *regs = (struct dcu_reg *)CONFIG_SYS_DCU_ADDR;
unsigned int div, mode;
/*
* When DM_VIDEO is enabled reservation of framebuffer is done
* in advance during bind() call.
*/
#if !CONFIG_IS_ENABLED(DM_VIDEO)
fbinfo->screen_size = fbinfo->var.xres * fbinfo->var.yres *
(fbinfo->var.bits_per_pixel / 8);
@ -310,13 +314,13 @@ int fsl_dcu_init(struct fb_info *fbinfo, unsigned int xres,
fbinfo->screen_size = 0;
return -ENOMEM;
}
/* Reserve framebuffer at the end of memory */
gd->fb_base = gd->bd->bi_dram[0].start +
gd->bd->bi_dram[0].size - fbinfo->screen_size;
fbinfo->screen_base = (char *)gd->fb_base;
memset(fbinfo->screen_base, 0, fbinfo->screen_size);
#endif
reset_total_layers();
@ -429,24 +433,8 @@ int fsl_probe_common(struct fb_info *fbinfo, unsigned int *win_x,
options + 8, fsl_dcu_mode_db);
}
void *video_hw_init(void)
{
static GraphicDevice ctfb;
if (fsl_probe_common(&info, &ctfb.winSizeX, &ctfb.winSizeY) < 0)
return NULL;
ctfb.frameAdrs = (unsigned int)info.screen_base;
ctfb.plnSizeX = ctfb.winSizeX;
ctfb.plnSizeY = ctfb.winSizeY;
ctfb.gdfBytesPP = 4;
ctfb.gdfIndex = GDF_32BIT_X888RGB;
ctfb.memSize = info.screen_size;
return &ctfb;
}
#ifndef CONFIG_DM_VIDEO
static struct fb_info info;
#if defined(CONFIG_OF_BOARD_SETUP)
int fsl_dcu_fixedfb_setup(void *blob)
@ -470,3 +458,89 @@ int fsl_dcu_fixedfb_setup(void *blob)
return 0;
}
#endif
void *video_hw_init(void)
{
static GraphicDevice ctfb;
if (fsl_probe_common(&info, &ctfb.winSizeX, &ctfb.winSizeY) < 0)
return NULL;
ctfb.frameAdrs = (unsigned int)info.screen_base;
ctfb.plnSizeX = ctfb.winSizeX;
ctfb.plnSizeY = ctfb.winSizeY;
ctfb.gdfBytesPP = 4;
ctfb.gdfIndex = GDF_32BIT_X888RGB;
ctfb.memSize = info.screen_size;
return &ctfb;
}
#else /* ifndef CONFIG_DM_VIDEO */
static int fsl_dcu_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);
struct fb_info fbinfo = { 0 };
unsigned int win_x;
unsigned int win_y;
u32 fb_start, fb_end;
int ret = 0;
fb_start = plat->base & ~(MMU_SECTION_SIZE - 1);
fb_end = plat->base + plat->size;
fb_end = ALIGN(fb_end, 1 << MMU_SECTION_SHIFT);
fbinfo.screen_base = (char *)fb_start;
fbinfo.screen_size = plat->size;
ret = fsl_probe_common(&fbinfo, &win_x, &win_y);
if (ret < 0)
return ret;
uc_priv->bpix = VIDEO_BPP32;
uc_priv->xsize = win_x;
uc_priv->ysize = win_y;
/* Enable dcache for the frame buffer */
mmu_set_region_dcache_behaviour(fb_start, fb_end - fb_start,
DCACHE_WRITEBACK);
video_set_flush_dcache(dev, true);
return ret;
}
static int fsl_dcu_video_bind(struct udevice *dev)
{
struct video_uc_platdata *plat = dev_get_uclass_platdata(dev);
unsigned int win_x;
unsigned int win_y;
unsigned int depth = 0, freq = 0;
const char *options;
int ret = 0;
ret = video_get_video_mode(&win_x, &win_y, &depth, &freq, &options);
if (ret < 0)
return ret;
plat->size = win_x * win_y * 32;
return 0;
}
static const struct udevice_id fsl_dcu_video_ids[] = {
{ .compatible = "fsl,vf610-dcu" },
{ /* sentinel */ }
};
U_BOOT_DRIVER(fsl_dcu_video) = {
.name = "fsl_dcu_video",
.id = UCLASS_VIDEO,
.of_match = fsl_dcu_video_ids,
.bind = fsl_dcu_video_bind,
.probe = fsl_dcu_video_probe,
.flags = DM_FLAG_PRE_RELOC,
};
#endif /* ifndef CONFIG_DM_VIDEO */