2 * Copyright (c) 2013 Google, Inc
4 * SPDX-License-Identifier: GPL-2.0+
12 #include <asm/u-boot-sandbox.h>
14 DECLARE_GLOBAL_DATA_PTR;
17 /* Maximum LCD size we support */
20 LCD_MAX_LOG2_BPP = 4, /* 2^4 = 16 bpp */
25 void lcd_setcolreg(ushort regno, ushort red, ushort green, ushort blue)
29 void lcd_ctrl_init(void *lcdbase)
32 * Allocate memory to keep BMP color conversion map. This is required
33 * for 8 bit BMPs only (hence 256 colors). If malloc fails - keep
34 * going, it is not even clear if displyaing the bitmap will be
35 * required on the way up.
37 panel_info.cmap = malloc(256 * NBITS(panel_info.vl_bpix) / 8);
42 if (sandbox_sdl_init_display(panel_info.vl_col, panel_info.vl_row,
44 puts("LCD init failed\n");
47 int sandbox_lcd_sdl_early_init(void)
49 const void *blob = gd->fdt_blob;
50 int xres = LCD_MAX_WIDTH, yres = LCD_MAX_HEIGHT;
55 * The code in common/lcd.c does not cope with not being able to
56 * set up a frame buffer. It will just happily keep writing to
57 * invalid memory. So here we make sure that at least some buffer
58 * is available even if it actually won't be displayed.
60 node = fdtdec_next_compatible(blob, 0, COMPAT_SANDBOX_LCD_SDL);
62 xres = fdtdec_get_int(blob, node, "xres", LCD_MAX_WIDTH);
63 yres = fdtdec_get_int(blob, node, "yres", LCD_MAX_HEIGHT);
64 if (xres < 0 || xres > LCD_MAX_WIDTH) {
68 if (yres < 0 || yres > LCD_MAX_HEIGHT) {
69 yres = LCD_MAX_HEIGHT;
74 panel_info.vl_col = xres;
75 panel_info.vl_row = yres;
76 panel_info.vl_bpix = LCD_COLOR16;