]>
git.ipfire.org Git - people/ms/u-boot.git/blob - common/lcd_simplefb.c
2 * Simplefb device tree support
5 * Stephen Warren <swarren@wwwdotorg.org>
7 * SPDX-License-Identifier: GPL-2.0+
12 #include <fdt_support.h>
15 DECLARE_GLOBAL_DATA_PTR
;
17 static int lcd_dt_simplefb_configure_node(void *blob
, int off
)
19 int vl_col
= lcd_get_pixel_width();
20 int vl_row
= lcd_get_pixel_height();
21 #if LCD_BPP == LCD_COLOR16
22 return fdt_setup_simplefb_node(blob
, off
, gd
->fb_base
, vl_col
, vl_row
,
23 vl_col
* 2, "r5g6b5");
24 #elif LCD_BPP == LCD_COLOR32
25 return fdt_setup_simplefb_node(blob
, off
, gd
->fb_base
, vl_col
, vl_row
,
26 vl_col
* 4, "a8r8g8b8");
32 int lcd_dt_simplefb_add_node(void *blob
)
34 static const char compat
[] = "simple-framebuffer";
35 static const char disabled
[] = "disabled";
38 off
= fdt_add_subnode(blob
, 0, "framebuffer");
42 ret
= fdt_setprop(blob
, off
, "status", disabled
, sizeof(disabled
));
46 ret
= fdt_setprop(blob
, off
, "compatible", compat
, sizeof(compat
));
50 return lcd_dt_simplefb_configure_node(blob
, off
);
53 int lcd_dt_simplefb_enable_existing_node(void *blob
)
57 off
= fdt_node_offset_by_compatible(blob
, -1, "simple-framebuffer");
61 return lcd_dt_simplefb_configure_node(blob
, off
);