X-Git-Url: https://git.kernelconcepts.de/?a=blobdiff_plain;f=common%2Flcd.c;h=56bf067fb5e13dcc8c769044b844836d01ad92e2;hb=2475e634758577baad4a54f4585c7fa9a638ae73;hp=4c83a8bf0355d2912840e06046b7f0c2a4aaed80;hpb=05a860c228fe6c8f2e7aced8cc8ef88bc1038363;p=karo-tx-uboot.git diff --git a/common/lcd.c b/common/lcd.c index 4c83a8bf03..56bf067fb5 100644 --- a/common/lcd.c +++ b/common/lcd.c @@ -4,23 +4,7 @@ * (C) Copyright 2001-2002 * Wolfgang Denk, DENX Software Engineering -- wd@denx.de * - * See file CREDITS for list of people who contributed to this - * project. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation; either version 2 of - * the License, or (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, - * MA 02111-1307 USA + * SPDX-License-Identifier: GPL-2.0+ */ /************************************************************************/ @@ -33,6 +17,8 @@ #include #include #include +#include +#include #include #include #if defined(CONFIG_POST) @@ -41,6 +27,8 @@ #include #include +#include + #if defined(CONFIG_CPU_PXA25X) || defined(CONFIG_CPU_PXA27X) || \ defined(CONFIG_CPU_MONAHANS) #define CONFIG_CPU_PXA @@ -55,11 +43,14 @@ #include #endif +#if defined(CONFIG_LCD_DT_SIMPLEFB) +#include +#endif + /************************************************************************/ /* ** FONT DATA */ /************************************************************************/ #include /* Get font data, width and height */ -#include /************************************************************************/ /* ** LOGO DATA */ @@ -72,9 +63,44 @@ # endif #endif -DECLARE_GLOBAL_DATA_PTR; +#ifndef CONFIG_LCD_ALIGNMENT +#define CONFIG_LCD_ALIGNMENT PAGE_SIZE +#endif -ulong lcd_setmem (ulong addr); +/* By default we scroll by a single line */ +#ifndef CONFIG_CONSOLE_SCROLL_LINES +#define CONFIG_CONSOLE_SCROLL_LINES 1 +#endif + +/************************************************************************/ +/* ** CONSOLE DEFINITIONS & FUNCTIONS */ +/************************************************************************/ +#if defined(CONFIG_LCD_LOGO) && !defined(CONFIG_LCD_INFO_BELOW_LOGO) +# define CONSOLE_ROWS ((panel_info.vl_row-BMP_LOGO_HEIGHT) \ + / VIDEO_FONT_HEIGHT) +#else +# define CONSOLE_ROWS (panel_info.vl_row / VIDEO_FONT_HEIGHT) +#endif + +#define CONSOLE_COLS (panel_info.vl_col / VIDEO_FONT_WIDTH) +#define CONSOLE_ROW_SIZE (VIDEO_FONT_HEIGHT * lcd_line_length) +#define CONSOLE_ROW_FIRST lcd_console_address +#define CONSOLE_ROW_SECOND (lcd_console_address + CONSOLE_ROW_SIZE) +#define CONSOLE_ROW_LAST (lcd_console_address + CONSOLE_SIZE \ + - CONSOLE_ROW_SIZE) +#define CONSOLE_SIZE (CONSOLE_ROW_SIZE * CONSOLE_ROWS) +#define CONSOLE_SCROLL_SIZE (CONSOLE_SIZE - CONSOLE_ROW_SIZE) + +#if LCD_BPP == LCD_MONOCHROME +# define COLOR_MASK(c) ((c) | (c) << 1 | (c) << 2 | (c) << 3 | \ + (c) << 4 | (c) << 5 | (c) << 6 | (c) << 7) +#elif (LCD_BPP == LCD_COLOR8) || (LCD_BPP == LCD_COLOR16) +# define COLOR_MASK(c) (c) +#else +# error Unsupported LCD BPP. +#endif + +DECLARE_GLOBAL_DATA_PTR; static void lcd_drawchars(ushort x, ushort y, uchar *str, int count); static inline void lcd_puts_xy(ushort x, ushort y, uchar *s); @@ -82,31 +108,68 @@ static inline void lcd_putc_xy(ushort x, ushort y, uchar c); static int lcd_init(void *lcdbase); -static void *lcd_logo (void); +static void *lcd_logo(void); static int lcd_getbgcolor(void); static void lcd_setfgcolor(int color); static void lcd_setbgcolor(int color); +static int lcd_color_fg; +static int lcd_color_bg; +int lcd_line_length; + char lcd_is_enabled = 0; -#ifdef NOT_USED_SO_FAR -static void lcd_getcolreg(ushort regno, - ushort *red, ushort *green, ushort *blue); -static int lcd_getfgcolor(void); -#endif /* NOT_USED_SO_FAR */ +static short console_col; +static short console_row; + +static void *lcd_console_address; +static void *lcd_base; /* Start of framebuffer memory */ + +static char lcd_flush_dcache; /* 1 to flush dcache after each lcd update */ /************************************************************************/ +/* Flush LCD activity to the caches */ +void lcd_sync(void) +{ + /* + * flush_dcache_range() is declared in common.h but it seems that some + * architectures do not actually implement it. Is there a way to find + * out whether it exists? For now, ARM is safe. + */ +#if defined(CONFIG_ARM) && !defined(CONFIG_SYS_DCACHE_OFF) + int line_length; + + if (lcd_flush_dcache) + flush_dcache_range((u32)lcd_base, + (u32)(lcd_base + lcd_get_size(&line_length))); +#endif +} + +void lcd_set_flush_dcache(int flush) +{ + lcd_flush_dcache = (flush != 0); +} + /*----------------------------------------------------------------------*/ static void console_scrollup(void) { - /* Copy up rows ignoring the first one */ - memcpy(CONSOLE_ROW_FIRST, CONSOLE_ROW_SECOND, CONSOLE_SCROLL_SIZE); + const int rows = CONFIG_CONSOLE_SCROLL_LINES; + + /* Copy up rows ignoring those that will be overwritten */ + memcpy(CONSOLE_ROW_FIRST, + lcd_console_address + CONSOLE_ROW_SIZE * rows, + CONSOLE_SIZE - CONSOLE_ROW_SIZE * rows); + + /* Clear the last rows */ + memset(lcd_console_address + CONSOLE_SIZE - CONSOLE_ROW_SIZE * rows, + COLOR_MASK(lcd_color_bg), + CONSOLE_ROW_SIZE * rows); - /* Clear the last one */ - memset(CONSOLE_ROW_LAST, COLOR_MASK(lcd_color_bg), CONSOLE_ROW_SIZE); + lcd_sync(); + console_row -= rows; } /*----------------------------------------------------------------------*/ @@ -115,9 +178,8 @@ static inline void console_back(void) { if (--console_col < 0) { console_col = CONSOLE_COLS-1 ; - if (--console_row < 0) { + if (--console_row < 0) console_row = 0; - } } lcd_putc_xy(console_col * VIDEO_FONT_WIDTH, @@ -128,15 +190,13 @@ static inline void console_back(void) static inline void console_newline(void) { - ++console_row; console_col = 0; /* Check if we need to scroll the terminal */ - if (console_row >= CONSOLE_ROWS) { - /* Scroll everything up */ + if (++console_row >= CONSOLE_ROWS) console_scrollup(); - --console_row; - } + else + lcd_sync(); } /*----------------------------------------------------------------------*/ @@ -188,9 +248,10 @@ void lcd_puts(const char *s) return; } - while (*s) { + while (*s) lcd_putc(*s++); - } + + lcd_sync(); } /*----------------------------------------------------------------------*/ @@ -236,7 +297,7 @@ static void lcd_drawchars(ushort x, ushort y, uchar *str, int count) #endif #if LCD_BPP == LCD_MONOCHROME - uchar rest = *d & -(1 << (8-off)); + uchar rest = *d & -(1 << (8 - off)); uchar sym; #endif for (i = 0; i < count; ++i) { @@ -266,7 +327,7 @@ static void lcd_drawchars(ushort x, ushort y, uchar *str, int count) #endif } #if LCD_BPP == LCD_MONOCHROME - *d = rest | (*d & ((1 << (8-off)) - 1)); + *d = rest | (*d & ((1 << (8 - off)) - 1)); #endif } } @@ -293,7 +354,7 @@ static inline void lcd_putc_xy(ushort x, ushort y, uchar c) #define N_BLK_VERT 2 #define N_BLK_HOR 3 -static int test_colors[N_BLK_HOR*N_BLK_VERT] = { +static int test_colors[N_BLK_HOR * N_BLK_VERT] = { CONSOLE_COLOR_RED, CONSOLE_COLOR_GREEN, CONSOLE_COLOR_YELLOW, CONSOLE_COLOR_BLUE, CONSOLE_COLOR_MAGENTA, CONSOLE_COLOR_CYAN, }; @@ -314,7 +375,7 @@ static void test_pattern(void) for (v = 0; v < v_max; ++v) { uchar iy = v / v_step; for (h = 0; h < h_max; ++h) { - uchar ix = N_BLK_HOR * iy + (h/h_step); + uchar ix = N_BLK_HOR * iy + h / h_step; *pix++ = test_colors[ix]; } } @@ -325,15 +386,24 @@ static void test_pattern(void) /************************************************************************/ /* ** GENERIC Initialization Routines */ /************************************************************************/ +/* + * With most lcd drivers the line length is set up + * by calculating it from panel_info parameters. Some + * drivers need to calculate the line length differently, + * so make the function weak to allow overriding it. + */ +__weak int lcd_get_size(int *line_length) +{ + *line_length = (panel_info.vl_col * NBITS(panel_info.vl_bpix)) / 8; + return *line_length * panel_info.vl_row; +} -int drv_lcd_init (void) +int drv_lcd_init(void) { struct stdio_dev lcddev; int rc; - lcd_base = (void *)(gd->fb_base); - - lcd_line_length = (panel_info.vl_col * NBITS (panel_info.vl_bpix)) / 8; + lcd_base = (void *) gd->fb_base; lcd_init(lcd_base); /* LCD initialization */ @@ -346,19 +416,12 @@ int drv_lcd_init (void) lcddev.putc = lcd_putc; /* 'putc' function */ lcddev.puts = lcd_puts; /* 'puts' function */ - rc = stdio_register (&lcddev); + rc = stdio_register(&lcddev); return (rc == 0) ? 1 : rc; } /*----------------------------------------------------------------------*/ -static -int do_lcd_clear(cmd_tbl_t *cmdtp, int flag, int argc, char *const argv[]) -{ - lcd_clear(); - return 0; -} - void lcd_clear(void) { #if LCD_BPP == LCD_MONOCHROME @@ -392,14 +455,22 @@ void lcd_clear(void) /* set framebuffer to background color */ memset((char *)lcd_base, COLOR_MASK(lcd_getbgcolor()), - lcd_line_length*panel_info.vl_row); + lcd_line_length * panel_info.vl_row); #endif /* Paint the logo and retrieve LCD base address */ debug("[LCD] Drawing the logo...\n"); - lcd_console_address = lcd_logo (); + lcd_console_address = lcd_logo(); console_col = 0; console_row = 0; + lcd_sync(); +} + +static int do_lcd_clear(cmd_tbl_t *cmdtp, int flag, int argc, + char *const argv[]) +{ + lcd_clear(); + return 0; } U_BOOT_CMD( @@ -416,9 +487,22 @@ static int lcd_init(void *lcdbase) debug("[LCD] Initializing LCD frambuffer at %p\n", lcdbase); lcd_ctrl_init(lcdbase); + + /* + * lcd_ctrl_init() of some drivers (i.e. bcm2835 on rpi_b) ignores + * the 'lcdbase' argument and uses custom lcd base address + * by setting up gd->fb_base. Check for this condition and fixup + * 'lcd_base' address. + */ + if ((unsigned long)lcdbase != gd->fb_base) + lcd_base = (void *)gd->fb_base; + + debug("[LCD] Using LCD frambuffer at %p\n", lcd_base); + + lcd_get_size(&lcd_line_length); lcd_is_enabled = 1; lcd_clear(); - lcd_enable (); + lcd_enable(); /* Initialize the console */ console_col = 0; @@ -445,20 +529,22 @@ static int lcd_init(void *lcdbase) ulong lcd_setmem(ulong addr) { ulong size; - int line_length = (panel_info.vl_col * NBITS(panel_info.vl_bpix)) / 8; + int line_length; debug("LCD panel info: %d x %d, %d bit/pix\n", panel_info.vl_col, panel_info.vl_row, NBITS(panel_info.vl_bpix)); - size = line_length * panel_info.vl_row; + size = lcd_get_size(&line_length); - /* Round up to nearest full page */ - size = (size + (PAGE_SIZE - 1)) & ~(PAGE_SIZE - 1); + /* Round up to nearest full page, or MMU section if defined */ + size = ALIGN(size, CONFIG_LCD_ALIGNMENT); + addr = ALIGN(addr - CONFIG_LCD_ALIGNMENT + 1, CONFIG_LCD_ALIGNMENT); /* Allocate pages for the frame buffer. */ addr -= size; - debug("Reserving %ldk for LCD Framebuffer at: %08lx\n", size>>10, addr); + debug("Reserving %ldk for LCD Framebuffer at: %08lx\n", + size >> 10, addr); return addr; } @@ -479,12 +565,10 @@ static void lcd_setbgcolor(int color) /*----------------------------------------------------------------------*/ -#ifdef NOT_USED_SO_FAR -static int lcd_getfgcolor(void) +int lcd_getfgcolor(void) { return lcd_color_fg; } -#endif /* NOT_USED_SO_FAR */ /*----------------------------------------------------------------------*/ @@ -493,8 +577,6 @@ static int lcd_getbgcolor(void) return lcd_color_bg; } -/*----------------------------------------------------------------------*/ - /************************************************************************/ /* ** Chipset depending Bitmap / Logo stuff... */ /************************************************************************/ @@ -511,13 +593,11 @@ static inline ushort *configuration_get_cmap(void) return (ushort *)(panel_info.mmio + ATMEL_LCDC_LUT(0)); #elif !defined(CONFIG_ATMEL_HLCD) && !defined(CONFIG_EXYNOS_FB) return panel_info.cmap; -#else -#if defined(CONFIG_LCD_LOGO) +#elif defined(CONFIG_LCD_LOGO) return bmp_logo_palette; #else return NULL; #endif -#endif } #ifdef CONFIG_LCD_LOGO @@ -536,15 +616,16 @@ void bitmap_plot(int x, int y) immap_t *immr = (immap_t *) CONFIG_SYS_IMMR; cpm8xx_t *cp = &(immr->im_cpm); #endif + unsigned bpix = NBITS(panel_info.vl_bpix); debug("Logo: width %d height %d colors %d cmap %d\n", BMP_LOGO_WIDTH, BMP_LOGO_HEIGHT, BMP_LOGO_COLORS, ARRAY_SIZE(bmp_logo_palette)); bmap = &bmp_logo_bitmap[0]; - fb = (uchar *)(lcd_base + y * lcd_line_length + x); + fb = (uchar *)(lcd_base + y * lcd_line_length + x * bpix / 8); - if (NBITS(panel_info.vl_bpix) < 12) { + if (bpix < 12) { /* Leave room for default color map * default case: generic system with no cmap (most likely 16bpp) * cmap was set to the source palette, so no change is done. @@ -590,12 +671,12 @@ void bitmap_plot(int x, int y) for (i = 0; i < BMP_LOGO_HEIGHT; ++i) { memcpy(fb, bmap, BMP_LOGO_WIDTH); bmap += BMP_LOGO_WIDTH; - fb += panel_info.vl_col; + fb += panel_info.vl_col; } } else { /* true color mode */ u16 col16; - fb16 = (ushort *)(lcd_base + y * lcd_line_length + x); + fb16 = (ushort *)fb; for (i = 0; i < BMP_LOGO_HEIGHT; ++i) { for (j = 0; j < BMP_LOGO_WIDTH; j++) { col16 = bmp_logo_palette[(bmap[j]-16)]; @@ -610,6 +691,7 @@ void bitmap_plot(int x, int y) } WATCHDOG_RESET(); + lcd_sync(); } #else static inline void bitmap_plot(int x, int y) {} @@ -680,12 +762,11 @@ static void draw_encoded_bitmap(ushort **fbp, ushort c, int cnt) *fb++ = c; cnt--; } - (*fbp) = fb; + *fbp = fb; } /* - * Do not call this function directly, must be called from - * lcd_display_bitmap. + * Do not call this function directly, must be called from lcd_display_bitmap. */ static void lcd_display_rle8_bitmap(bmp_image_t *bmp, ushort *cmap, uchar *fb, int x_off, int y_off) @@ -812,8 +893,8 @@ int lcd_display_bitmap(ulong bmp_image, int x, int y) unsigned long pwidth = panel_info.vl_col; unsigned colors, bpix, bmp_bpix; - if (!bmp || !((bmp->header.signature[0] == 'B') && - (bmp->header.signature[1] == 'M'))) { + if (!bmp || !(bmp->header.signature[0] == 'B' && + bmp->header.signature[1] == 'M')) { printf("Error: no valid bmp image at %lx\n", bmp_image); return 1; @@ -826,7 +907,7 @@ int lcd_display_bitmap(ulong bmp_image, int x, int y) bpix = NBITS(panel_info.vl_bpix); - if ((bpix != 1) && (bpix != 8) && (bpix != 16) && (bpix != 32)) { + if (bpix != 1 && bpix != 8 && bpix != 16 && bpix != 32) { printf ("Error: %d bit/pixel mode, but BMP has %d bit/pixel\n", bpix, bmp_bpix); @@ -834,7 +915,7 @@ int lcd_display_bitmap(ulong bmp_image, int x, int y) } /* We support displaying 8bpp BMPs on 16bpp LCDs */ - if (bpix != bmp_bpix && (bmp_bpix != 8 || bpix != 16 || bpix != 32)) { + if (bpix != bmp_bpix && !(bmp_bpix == 8 && bpix == 16)) { printf ("Error: %d bit/pixel mode, but BMP has %d bit/pixel\n", bpix, le16_to_cpu(bmp->header.bit_count)); @@ -894,7 +975,7 @@ int lcd_display_bitmap(ulong bmp_image, int x, int y) } #endif - padded_width = (width&0x3) ? ((width&~0x3)+4) : (width); + padded_width = (width & 0x3 ? (width & ~0x3) + 4 : width); #ifdef CONFIG_SPLASH_SCREEN_ALIGN splash_align_axis(&x, pwidth, width); @@ -906,7 +987,7 @@ int lcd_display_bitmap(ulong bmp_image, int x, int y) if ((y + height) > panel_info.vl_row) height = panel_info.vl_row - y; - bmap = (uchar *)bmp + le32_to_cpu(bmp->header.data_offset); + bmap = (uchar *) bmp + le32_to_cpu(bmp->header.data_offset); fb = (uchar *) (lcd_base + (y + height - 1) * lcd_line_length + x * bpix / 8); @@ -941,7 +1022,7 @@ int lcd_display_bitmap(ulong bmp_image, int x, int y) } } bmap += (padded_width - width); - fb -= (byte_width + lcd_line_length); + fb -= byte_width + lcd_line_length; } break; @@ -953,7 +1034,7 @@ int lcd_display_bitmap(ulong bmp_image, int x, int y) fb_put_word(&fb, &bmap); bmap += (padded_width - width) * 2; - fb -= (width * 2 + lcd_line_length); + fb -= width * 2 + lcd_line_length; } break; #endif /* CONFIG_BMP_16BPP */ @@ -967,7 +1048,7 @@ int lcd_display_bitmap(ulong bmp_image, int x, int y) *(fb++) = *(bmap++); *(fb++) = *(bmap++); } - fb -= (lcd_line_length + width * (bpix / 8)); + fb -= lcd_line_length + width * (bpix / 8); } break; #endif /* CONFIG_BMP_32BPP */ @@ -975,6 +1056,7 @@ int lcd_display_bitmap(ulong bmp_image, int x, int y) break; }; + lcd_sync(); return 0; } #endif @@ -990,24 +1072,12 @@ static void *lcd_logo(void) int x = 0, y = 0; do_splash = 0; + if (splash_screen_prepare()) + return (void *)lcd_base; + addr = simple_strtoul (s, NULL, 16); -#ifdef CONFIG_SPLASH_SCREEN_ALIGN - s = getenv("splashpos"); - if (s != NULL) { - if (s[0] == 'm') - x = BMP_ALIGN_CENTER; - else - x = simple_strtol(s, NULL, 0); - - s = strchr(s + 1, ','); - if (s != NULL) { - if (s[1] == 'm') - y = BMP_ALIGN_CENTER; - else - y = simple_strtol (s + 1, NULL, 0); - } - } -#endif /* CONFIG_SPLASH_SCREEN_ALIGN */ + + splash_get_pos(&x, &y); if (bmp_display(addr, x, y) == 0) return (void *)lcd_base; @@ -1026,9 +1096,33 @@ static void *lcd_logo(void) return (void *)((ulong)lcd_base + BMP_LOGO_HEIGHT * lcd_line_length); #else return (void *)lcd_base; -#endif /* CONFIG_LCD_LOGO && !CONFIG_LCD_INFO_BELOW_LOGO */ +#endif /* CONFIG_LCD_LOGO && !defined(CONFIG_LCD_INFO_BELOW_LOGO) */ +} + +#ifdef CONFIG_SPLASHIMAGE_GUARD +static int on_splashimage(const char *name, const char *value, enum env_op op, + int flags) +{ + ulong addr; + int aligned; + + if (op == env_op_delete) + return 0; + + addr = simple_strtoul(value, NULL, 16); + /* See README.displaying-bmps */ + aligned = (addr % 4 == 2); + if (!aligned) { + printf("Invalid splashimage value. Value must be 16 bit aligned, but not 32 bit aligned\n"); + return -1; + } + + return 0; } +U_BOOT_ENV_CALLBACK(splashimage, on_splashimage); +#endif + void lcd_position_cursor(unsigned col, unsigned row) { console_col = min(col, CONSOLE_COLS - 1); @@ -1055,5 +1149,85 @@ int lcd_get_screen_columns(void) return CONSOLE_COLS; } -/************************************************************************/ -/************************************************************************/ +#if defined(CONFIG_LCD_DT_SIMPLEFB) +static int lcd_dt_simplefb_configure_node(void *blob, int off) +{ + u32 stride; + fdt32_t cells[2]; + int ret; + static const char format[] = +#if LCD_BPP == LCD_COLOR16 + "r5g6b5"; +#else + ""; +#endif + + if (!format[0]) + return -1; + + stride = panel_info.vl_col * 2; + + cells[0] = cpu_to_fdt32(gd->fb_base); + cells[1] = cpu_to_fdt32(stride * panel_info.vl_row); + ret = fdt_setprop(blob, off, "reg", cells, sizeof(cells[0]) * 2); + if (ret < 0) + return -1; + + cells[0] = cpu_to_fdt32(panel_info.vl_col); + ret = fdt_setprop(blob, off, "width", cells, sizeof(cells[0])); + if (ret < 0) + return -1; + + cells[0] = cpu_to_fdt32(panel_info.vl_row); + ret = fdt_setprop(blob, off, "height", cells, sizeof(cells[0])); + if (ret < 0) + return -1; + + cells[0] = cpu_to_fdt32(stride); + ret = fdt_setprop(blob, off, "stride", cells, sizeof(cells[0])); + if (ret < 0) + return -1; + + ret = fdt_setprop(blob, off, "format", format, strlen(format) + 1); + if (ret < 0) + return -1; + + ret = fdt_delprop(blob, off, "status"); + if (ret < 0) + return -1; + + return 0; +} + +int lcd_dt_simplefb_add_node(void *blob) +{ + static const char compat[] = "simple-framebuffer"; + static const char disabled[] = "disabled"; + int off, ret; + + off = fdt_add_subnode(blob, 0, "framebuffer"); + if (off < 0) + return -1; + + ret = fdt_setprop(blob, off, "status", disabled, sizeof(disabled)); + if (ret < 0) + return -1; + + ret = fdt_setprop(blob, off, "compatible", compat, sizeof(compat)); + if (ret < 0) + return -1; + + return lcd_dt_simplefb_configure_node(blob, off); +} + +int lcd_dt_simplefb_enable_existing_node(void *blob) +{ + int off; + + off = fdt_node_offset_by_compatible(blob, -1, "simple-framebuffer"); + if (off < 0) + return -1; + + return lcd_dt_simplefb_configure_node(blob, off); +} +#endif