1 // SPDX-License-Identifier: GPL-2.0
8  * Copyright (C) 2003-2004 Linux Networx
10  * Copyright (C) 2003-2006 Ronald G. Minnich <rminnich@gmail.com>
11  * Copyright (C) 2004-2005 Li-Ta Lo <ollie@lanl.gov>
12  * Copyright (C) 2005-2006 Tyan
14  * Copyright (C) 2005-2009 coresystems GmbH
19  * Copyright 1993 -- 1997 Drew Eckhardt, Frederic Potter,
20  * David Mosberger-Tang
22  * Copyright 1997 -- 1999 Martin Mares <mj@atrey.karlin.mff.cuni.cz>
45 	if (gd->arch.prev_sleep_state == ACPI_S3) {  in board_should_run_oprom()
77 	vendev = pplat->vendor << 16 | pplat->device;  in pci_rom_probe()
89 		return -ENOENT;  in pci_rom_probe()
92 	/* Enable expansion ROM address decoding. */  in pci_rom_probe()
96 	debug("Option ROM address %x\n", rom_address);  in pci_rom_probe()
99 	debug("PCI expansion ROM, signature %#04x, INIT size %#04x, data ptr %#04x\n",  in pci_rom_probe()
100 	      le16_to_cpu(rom_header->signature),  in pci_rom_probe()
101 	      rom_header->size * 512, le16_to_cpu(rom_header->data));  in pci_rom_probe()
103 	if (le16_to_cpu(rom_header->signature) != PCI_ROM_HDR) {  in pci_rom_probe()
104 		printf("Incorrect expansion ROM header signature %04x\n",  in pci_rom_probe()
105 		       le16_to_cpu(rom_header->signature));  in pci_rom_probe()
107 		/* Disable expansion ROM address decoding */  in pci_rom_probe()
110 		return -EINVAL;  in pci_rom_probe()
113 	rom_data = (((void *)rom_header) + le16_to_cpu(rom_header->data));  in pci_rom_probe()
114 	rom_vendor = le16_to_cpu(rom_data->vendor);  in pci_rom_probe()
115 	rom_device = le16_to_cpu(rom_data->device);  in pci_rom_probe()
117 	debug("PCI ROM image, vendor ID %04x, device ID %04x,\n",  in pci_rom_probe()
121 	if ((pplat->vendor != rom_vendor || pplat->device != rom_device) &&  in pci_rom_probe()
128 	rom_class = (le16_to_cpu(rom_data->class_hi) << 8) | rom_data->class_lo;  in pci_rom_probe()
129 	debug("PCI ROM image, Class Code %06x, Code Type %02x\n",  in pci_rom_probe()
130 	      rom_class, rom_data->type);  in pci_rom_probe()
132 	if (pplat->class != rom_class) {  in pci_rom_probe()
133 		debug("Class Code mismatch ROM %06x, dev %06x\n",  in pci_rom_probe()
134 		      rom_class, pplat->class);  in pci_rom_probe()
142  * pci_rom_load() - Load a ROM image and return a pointer to it
144  * @rom_header:		Pointer to ROM image
148  * @return 0 if OK, -ve on error. Note that @allocedp is set up regardless of
167 				le16_to_cpu(rom_header->data));  in pci_rom_load()
169 		image_size = le16_to_cpu(rom_data->ilen) * 512;  in pci_rom_load()
170 	} while ((rom_data->type != 0) && (rom_data->indicator == 0));  in pci_rom_load()
172 	if (rom_data->type != 0)  in pci_rom_load()
173 		return -EACCES;  in pci_rom_load()
175 	rom_size = rom_header->size * 512;  in pci_rom_load()
182 		return -ENOMEM;  in pci_rom_load()
188 		debug("Copying VGA ROM Image from %p to %p, 0x%x bytes\n",  in pci_rom_load()
192 			printf("VGA ROM copy failed\n");  in pci_rom_load()
193 			return -EFAULT;  in pci_rom_load()
209 	if (!vesa->x_resolution || !vesa->y_resolution)  in setup_video()
212 	screen_info->orig_video_isVGA = VIDEO_TYPE_VLFB;  in setup_video()
214 	screen_info->lfb_width = vesa->x_resolution;  in setup_video()
215 	screen_info->lfb_height = vesa->y_resolution;  in setup_video()
216 	screen_info->lfb_depth = vesa->bits_per_pixel;  in setup_video()
217 	screen_info->lfb_linelength = vesa->bytes_per_scanline;  in setup_video()
218 	screen_info->lfb_base = vesa->phys_base_ptr;  in setup_video()
219 	screen_info->lfb_size =  in setup_video()
220 		ALIGN(screen_info->lfb_linelength * screen_info->lfb_height,  in setup_video()
222 	screen_info->lfb_size >>= 16;  in setup_video()
223 	screen_info->red_size = vesa->red_mask_size;  in setup_video()
224 	screen_info->red_pos = vesa->red_mask_pos;  in setup_video()
225 	screen_info->green_size = vesa->green_mask_size;  in setup_video()
226 	screen_info->green_pos = vesa->green_mask_pos;  in setup_video()
227 	screen_info->blue_size = vesa->blue_mask_size;  in setup_video()
228 	screen_info->blue_pos = vesa->blue_mask_pos;  in setup_video()
229 	screen_info->rsvd_size = vesa->reserved_mask_size;  in setup_video()
230 	screen_info->rsvd_pos = vesa->reserved_mask_pos;  in setup_video()
237 	struct pci_rom_header *rom = NULL, *ram = NULL;  in dm_pci_run_vga_bios()  local
238 	int vesa_mode = -1;  in dm_pci_run_vga_bios()
243 	if (((pplat->class >> 8) ^ PCI_CLASS_DISPLAY_VGA) & 0xff00) {  in dm_pci_run_vga_bios()
244 		debug("%s: Class %#x, should be %#x\n", __func__, pplat->class,  in dm_pci_run_vga_bios()
246 		return -ENODEV;  in dm_pci_run_vga_bios()
250 		return log_msg_ret("Should not load OPROM", -ENXIO);  in dm_pci_run_vga_bios()
252 	ret = pci_rom_probe(dev, &rom);  in dm_pci_run_vga_bios()
256 	ret = pci_rom_load(rom, &ram, &alloced);  in dm_pci_run_vga_bios()
261 		ret = -ENXIO;  in dm_pci_run_vga_bios()
277 			ret = -ENOSYS;  in dm_pci_run_vga_bios()
287 			printf("BIOS emulation not available - see CONFIG_BIOSEMU\n");  in dm_pci_run_vga_bios()
288 			ret = -ENOSYS;  in dm_pci_run_vga_bios()
330 	if (!vesa->x_resolution)  in vbe_setup_video_priv()
331 		return log_msg_ret("No x resolution", -ENXIO);  in vbe_setup_video_priv()
332 	uc_priv->xsize = vesa->x_resolution;  in vbe_setup_video_priv()
333 	uc_priv->ysize = vesa->y_resolution;  in vbe_setup_video_priv()
334 	uc_priv->line_length = vesa->bytes_per_scanline;  in vbe_setup_video_priv()
335 	switch (vesa->bits_per_pixel) {  in vbe_setup_video_priv()
338 		uc_priv->bpix = VIDEO_BPP32;  in vbe_setup_video_priv()
341 		uc_priv->bpix = VIDEO_BPP16;  in vbe_setup_video_priv()
344 		return -EPROTONOSUPPORT;  in vbe_setup_video_priv()
346 	plat->base = vesa->phys_base_ptr;  in vbe_setup_video_priv()
347 	plat->size = vesa->bytes_per_scanline * vesa->y_resolution;  in vbe_setup_video_priv()
361 		return -EPERM;  in vbe_setup_video()
378 	printf("Video: %dx%dx%d\n", uc_priv->xsize, uc_priv->ysize,  in vbe_setup_video()