14  * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
70 	struct device_node *np = dev->dev->of_node;  in ast_detect_config_mode()
72 	struct pci_dev *pdev = to_pci_dev(dev->dev);  in ast_detect_config_mode()
76 	ast->config_mode = ast_use_defaults;  in ast_detect_config_mode()
79 	/* Check if we have device-tree properties */  in ast_detect_config_mode()
80 	if (np && !of_property_read_u32(np, "aspeed,scu-revision-id",  in ast_detect_config_mode()
83 		ast->config_mode = ast_use_dt;  in ast_detect_config_mode()
84 		drm_info(dev, "Using device-tree for configuration\n");  in ast_detect_config_mode()
89 	if (pdev->device != PCI_CHIP_AST2000)  in ast_detect_config_mode()
93 	 * The BMC will set SCU 0x40 D[12] to 1 if the P2 bridge  in ast_detect_config_mode()
101 		if (((pdev->revision & 0xF0) == 0x40)  in ast_detect_config_mode()
109 			ast->config_mode = ast_use_p2a;  in ast_detect_config_mode()
128 	struct pci_dev *pdev = to_pci_dev(dev->dev);  in ast_detect_chip()
135 	 * (Assumption: VGA not enabled -> need to POST)  in ast_detect_chip()
149 	/* Find out whether P2A works or whether to use device-tree */  in ast_detect_chip()
153 	if (pdev->revision >= 0x50) {  in ast_detect_chip()
154 		ast->chip = AST2600;  in ast_detect_chip()
156 	} else if (pdev->revision >= 0x40) {  in ast_detect_chip()
157 		ast->chip = AST2500;  in ast_detect_chip()
159 	} else if (pdev->revision >= 0x30) {  in ast_detect_chip()
160 		ast->chip = AST2400;  in ast_detect_chip()
162 	} else if (pdev->revision >= 0x20) {  in ast_detect_chip()
163 		ast->chip = AST2300;  in ast_detect_chip()
165 	} else if (pdev->revision >= 0x10) {  in ast_detect_chip()
168 			ast->chip = AST1100;  in ast_detect_chip()
172 			ast->chip = AST2200;  in ast_detect_chip()
176 			ast->chip = AST2150;  in ast_detect_chip()
180 			ast->chip = AST2100;  in ast_detect_chip()
184 		ast->vga2_clone = false;  in ast_detect_chip()
186 		ast->chip = AST2000;  in ast_detect_chip()
191 	switch (ast->chip) {  in ast_detect_chip()
193 		ast->support_wide_screen = false;  in ast_detect_chip()
198 			ast->support_wide_screen = true;  in ast_detect_chip()
200 			ast->support_wide_screen = true;  in ast_detect_chip()
202 			ast->support_wide_screen = false;  in ast_detect_chip()
203 			if (ast->chip == AST2300 &&  in ast_detect_chip()
205 				ast->support_wide_screen = true;  in ast_detect_chip()
206 			if (ast->chip == AST2400 &&  in ast_detect_chip()
208 				ast->support_wide_screen = true;  in ast_detect_chip()
209 			if (ast->chip == AST2500 &&  in ast_detect_chip()
211 				ast->support_wide_screen = true;  in ast_detect_chip()
212 			if (ast->chip == AST2600)		/* ast2600 */  in ast_detect_chip()
213 				ast->support_wide_screen = true;  in ast_detect_chip()
219 	ast->tx_chip_types |= AST_TX_NONE_BIT;  in ast_detect_chip()
226 	 * is at power-on reset, otherwise we'll incorrectly "detect" a  in ast_detect_chip()
232 			ast->tx_chip_types = AST_TX_SIL164_BIT;  in ast_detect_chip()
235 	if ((ast->chip == AST2300) || (ast->chip == AST2400) || (ast->chip == AST2500)) {  in ast_detect_chip()
244 			ast->tx_chip_types = AST_TX_SIL164_BIT;  in ast_detect_chip()
247 			ast->dp501_fw_addr = drmm_kzalloc(dev, 32*1024, GFP_KERNEL);  in ast_detect_chip()
248 			if (ast->dp501_fw_addr) {  in ast_detect_chip()
250 				if (ast_backup_fw(dev, ast->dp501_fw_addr, 32*1024)) {  in ast_detect_chip()
251 					drmm_kfree(dev, ast->dp501_fw_addr);  in ast_detect_chip()
252 					ast->dp501_fw_addr = NULL;  in ast_detect_chip()
257 			ast->tx_chip_types = AST_TX_DP501_BIT;  in ast_detect_chip()
259 	} else if (ast->chip == AST2600)  in ast_detect_chip()
260 		ast_dp_launch(&ast->base, 0);  in ast_detect_chip()
263 	if (ast->tx_chip_types & AST_TX_NONE_BIT)  in ast_detect_chip()
265 	if (ast->tx_chip_types & AST_TX_SIL164_BIT)  in ast_detect_chip()
267 	if (ast->tx_chip_types & AST_TX_DP501_BIT)  in ast_detect_chip()
275 	struct device_node *np = dev->dev->of_node;  in ast_get_dram_info()
280 	switch (ast->config_mode) {  in ast_get_dram_info()
286 		if (of_property_read_u32(np, "aspeed,mcr-configuration",  in ast_get_dram_info()
289 		if (of_property_read_u32(np, "aspeed,mcr-scu-mpll",  in ast_get_dram_info()
292 		if (of_property_read_u32(np, "aspeed,mcr-scu-strap",  in ast_get_dram_info()
305 		ast->dram_bus_width = 16;  in ast_get_dram_info()
306 		ast->dram_type = AST_DRAM_1Gx16;  in ast_get_dram_info()
307 		if (ast->chip == AST2500)  in ast_get_dram_info()
308 			ast->mclk = 800;  in ast_get_dram_info()
310 			ast->mclk = 396;  in ast_get_dram_info()
315 		ast->dram_bus_width = 16;  in ast_get_dram_info()
317 		ast->dram_bus_width = 32;  in ast_get_dram_info()
319 	if (ast->chip == AST2500) {  in ast_get_dram_info()
322 			ast->dram_type = AST_DRAM_1Gx16;  in ast_get_dram_info()
326 			ast->dram_type = AST_DRAM_2Gx16;  in ast_get_dram_info()
329 			ast->dram_type = AST_DRAM_4Gx16;  in ast_get_dram_info()
332 			ast->dram_type = AST_DRAM_8Gx16;  in ast_get_dram_info()
335 	} else if (ast->chip == AST2300 || ast->chip == AST2400) {  in ast_get_dram_info()
338 			ast->dram_type = AST_DRAM_512Mx16;  in ast_get_dram_info()
342 			ast->dram_type = AST_DRAM_1Gx16;  in ast_get_dram_info()
345 			ast->dram_type = AST_DRAM_2Gx16;  in ast_get_dram_info()
348 			ast->dram_type = AST_DRAM_4Gx16;  in ast_get_dram_info()
355 			ast->dram_type = AST_DRAM_512Mx16;  in ast_get_dram_info()
359 				ast->dram_type = AST_DRAM_1Gx16;  in ast_get_dram_info()
361 				ast->dram_type = AST_DRAM_512Mx32;  in ast_get_dram_info()
364 			ast->dram_type = AST_DRAM_1Gx32;  in ast_get_dram_info()
389 	ast->mclk = ref_pll * (num + 2) / ((denum + 2) * (div * 1000));  in ast_get_dram_info()
414 	ast = devm_drm_dev_alloc(&pdev->dev, drv, struct ast_private, base);  in ast_device_create()
417 	dev = &ast->base;  in ast_device_create()
421 	ret = drmm_mutex_init(dev, &ast->ioregs_lock);  in ast_device_create()
425 	ast->regs = pcim_iomap(pdev, 1, 0);  in ast_device_create()
426 	if (!ast->regs)  in ast_device_create()
427 		return ERR_PTR(-EIO);  in ast_device_create()
436 		ast->ioregs = ast->regs + AST_IO_MM_OFFSET;  in ast_device_create()
440 	if (!ast->ioregs) {  in ast_device_create()
441 		ast->ioregs = pcim_iomap(pdev, 2, 0);  in ast_device_create()
442 		if (!ast->ioregs)  in ast_device_create()
443 			return ERR_PTR(-EIO);  in ast_device_create()
453 		 ast->mclk, ast->dram_type, ast->dram_bus_width);  in ast_device_create()
463 	ast->dp501_fw_buf = NULL;  in ast_device_create()
464 	if (dev->vram_mm->vram_size < pci_resource_len(pdev, 0)) {  in ast_device_create()
465 		ast->dp501_fw_buf = pci_iomap_range(pdev, 0, dev->vram_mm->vram_size, 0);  in ast_device_create()
466 		if (!ast->dp501_fw_buf)  in ast_device_create()
474 	ret = devm_add_action_or_reset(dev->dev, ast_device_release, ast);  in ast_device_create()