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boot: fdt_simplefb: Enumerate framebuffer info from video handoff

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Enable and update simple-framebuffer node using the video handoff
bloblist if video was enabled at SPL stage and corresponding video
bloblist was received at u-boot proper with necessary parameters.

Signed-off-by: Devarsh Thakkar <devarsht@ti.com>
Reviewed-by: Nikhil M Jain <n-jain1@ti.com>
This commit is contained in:
Devarsh Thakkar 2024-02-22 18:38:08 +05:30 • committed by Anatolij Gustschin
parent 91e9687b49
commit 86281e4705
1 changed files with 25 additions and 9 deletions
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34
boot/fdt_simplefb.c
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@ -12,6 +12,8 @@
#include <asm/global_data.h>
#include <linux/libfdt.h>
#include <video.h>
#include <spl.h>
#include <bloblist.h>
DECLARE_GLOBAL_DATA_PTR;
@ -26,15 +28,29 @@ static int fdt_simplefb_configure_node(void *blob, int off)
struct udevice *dev;
int ret;
ret = uclass_first_device_err(UCLASS_VIDEO, &dev);
if (ret)
return ret;
uc_priv = dev_get_uclass_priv(dev);
plat = dev_get_uclass_plat(dev);
xsize = uc_priv->xsize;
ysize = uc_priv->ysize;
bpix = uc_priv->bpix;
fb_base = plat->base;
if (IS_ENABLED(CONFIG_SPL_VIDEO_HANDOFF) && spl_phase() > PHASE_SPL) {
struct video_handoff *ho;
ho = bloblist_find(BLOBLISTT_U_BOOT_VIDEO, sizeof(*ho));
if (!ho)
return log_msg_ret("Missing video bloblist", -ENOENT);
xsize = ho->xsize;
ysize = ho->ysize;
bpix = ho->bpix;
fb_base = ho->fb;
} else {
ret = uclass_first_device_err(UCLASS_VIDEO, &dev);
if (ret)
return ret;
uc_priv = dev_get_uclass_priv(dev);
plat = dev_get_uclass_plat(dev);
xsize = uc_priv->xsize;
ysize = uc_priv->ysize;
bpix = uc_priv->bpix;
fb_base = plat->base;
}
switch (bpix) {
case 4: /* VIDEO_BPP16 */
name = "r5g6b5";