14  * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
70 	struct drm_device *dev = &ast->base;  in ast_enable_mmio()
74 	return devm_add_action_or_reset(dev->dev, ast_enable_mmio_release, ast);  in ast_enable_mmio()
84 	struct drm_device *dev = &ast->base;  in ast_device_config_init()
85 	struct pci_dev *pdev = to_pci_dev(dev->dev);  in ast_device_config_init()
86 	struct device_node *np = dev->dev->of_node;  in ast_device_config_init()
92 	 * Find configuration mode and read SCU revision  in ast_device_config_init()
95 	ast->config_mode = ast_use_defaults;  in ast_device_config_init()
97 	/* Check if we have device-tree properties */  in ast_device_config_init()
98 	if (np && !of_property_read_u32(np, "aspeed,scu-revision-id", &data)) {  in ast_device_config_init()
100 		ast->config_mode = ast_use_dt;  in ast_device_config_init()
102 	} else if (pdev->device == PCI_CHIP_AST2000) { // Not all families have a P2A bridge  in ast_device_config_init()
104 		 * The BMC will set SCU 0x40 D[12] to 1 if the P2 bridge  in ast_device_config_init()
117 			if ((pdev->revision & 0xf0) == 0x40) {  in ast_device_config_init()
125 				ast->config_mode = ast_use_p2a;  in ast_device_config_init()
135 	switch (ast->config_mode) {  in ast_device_config_init()
140 		drm_info(dev, "Using device-tree for configuration\n");  in ast_device_config_init()
151 	if (pdev->revision >= 0x50) {  in ast_device_config_init()
152 		ast->chip = AST2600;  in ast_device_config_init()
154 	} else if (pdev->revision >= 0x40) {  in ast_device_config_init()
157 			ast->chip = AST2510;  in ast_device_config_init()
161 			ast->chip = AST2500;  in ast_device_config_init()
164 	} else if (pdev->revision >= 0x30) {  in ast_device_config_init()
167 			ast->chip = AST1400;  in ast_device_config_init()
171 			ast->chip = AST2400;  in ast_device_config_init()
174 	} else if (pdev->revision >= 0x20) {  in ast_device_config_init()
177 			ast->chip = AST1300;  in ast_device_config_init()
181 			ast->chip = AST2300;  in ast_device_config_init()
185 	} else if (pdev->revision >= 0x10) {  in ast_device_config_init()
188 			ast->chip = AST1100;  in ast_device_config_init()
192 			ast->chip = AST2200;  in ast_device_config_init()
196 			ast->chip = AST2150;  in ast_device_config_init()
200 			ast->chip = AST2100;  in ast_device_config_init()
205 		ast->chip = AST2000;  in ast_device_config_init()
219 		ast->support_wide_screen = false;  in ast_detect_widescreen()
224 			ast->support_wide_screen = true;  in ast_detect_widescreen()
226 			ast->support_wide_screen = true;  in ast_detect_widescreen()
228 			ast->support_wide_screen = false;  in ast_detect_widescreen()
229 			if (ast->chip == AST1300)  in ast_detect_widescreen()
230 				ast->support_wide_screen = true;  in ast_detect_widescreen()
231 			if (ast->chip == AST1400)  in ast_detect_widescreen()
232 				ast->support_wide_screen = true;  in ast_detect_widescreen()
233 			if (ast->chip == AST2510)  in ast_detect_widescreen()
234 				ast->support_wide_screen = true;  in ast_detect_widescreen()
236 				ast->support_wide_screen = true;  in ast_detect_widescreen()
244 	struct drm_device *dev = &ast->base;  in ast_detect_tx_chip()
248 	ast->tx_chip_types |= AST_TX_NONE_BIT;  in ast_detect_tx_chip()
255 	 * is at power-on reset, otherwise we'll incorrectly "detect" a  in ast_detect_tx_chip()
261 			ast->tx_chip_types = AST_TX_SIL164_BIT;  in ast_detect_tx_chip()
273 			ast->tx_chip_types = AST_TX_SIL164_BIT;  in ast_detect_tx_chip()
276 			ast->dp501_fw_addr = drmm_kzalloc(dev, 32*1024, GFP_KERNEL);  in ast_detect_tx_chip()
277 			if (ast->dp501_fw_addr) {  in ast_detect_tx_chip()
279 				if (ast_backup_fw(dev, ast->dp501_fw_addr, 32*1024)) {  in ast_detect_tx_chip()
280 					drmm_kfree(dev, ast->dp501_fw_addr);  in ast_detect_tx_chip()
281 					ast->dp501_fw_addr = NULL;  in ast_detect_tx_chip()
286 			ast->tx_chip_types = AST_TX_DP501_BIT;  in ast_detect_tx_chip()
291 			ast->tx_chip_types = AST_TX_ASTDP_BIT;  in ast_detect_tx_chip()
292 			ast_dp_launch(&ast->base);  in ast_detect_tx_chip()
297 	if (ast->tx_chip_types & AST_TX_NONE_BIT)  in ast_detect_tx_chip()
299 	if (ast->tx_chip_types & AST_TX_SIL164_BIT)  in ast_detect_tx_chip()
301 	if (ast->tx_chip_types & AST_TX_DP501_BIT)  in ast_detect_tx_chip()
303 	if (ast->tx_chip_types & AST_TX_ASTDP_BIT)  in ast_detect_tx_chip()
309 	struct device_node *np = dev->dev->of_node;  in ast_get_dram_info()
314 	switch (ast->config_mode) {  in ast_get_dram_info()
320 		if (of_property_read_u32(np, "aspeed,mcr-configuration",  in ast_get_dram_info()
323 		if (of_property_read_u32(np, "aspeed,mcr-scu-mpll",  in ast_get_dram_info()
326 		if (of_property_read_u32(np, "aspeed,mcr-scu-strap",  in ast_get_dram_info()
339 		ast->dram_bus_width = 16;  in ast_get_dram_info()
340 		ast->dram_type = AST_DRAM_1Gx16;  in ast_get_dram_info()
342 			ast->mclk = 800;  in ast_get_dram_info()
344 			ast->mclk = 396;  in ast_get_dram_info()
349 		ast->dram_bus_width = 16;  in ast_get_dram_info()
351 		ast->dram_bus_width = 32;  in ast_get_dram_info()
356 			ast->dram_type = AST_DRAM_1Gx16;  in ast_get_dram_info()
360 			ast->dram_type = AST_DRAM_2Gx16;  in ast_get_dram_info()
363 			ast->dram_type = AST_DRAM_4Gx16;  in ast_get_dram_info()
366 			ast->dram_type = AST_DRAM_8Gx16;  in ast_get_dram_info()
372 			ast->dram_type = AST_DRAM_512Mx16;  in ast_get_dram_info()
376 			ast->dram_type = AST_DRAM_1Gx16;  in ast_get_dram_info()
379 			ast->dram_type = AST_DRAM_2Gx16;  in ast_get_dram_info()
382 			ast->dram_type = AST_DRAM_4Gx16;  in ast_get_dram_info()
389 			ast->dram_type = AST_DRAM_512Mx16;  in ast_get_dram_info()
393 				ast->dram_type = AST_DRAM_1Gx16;  in ast_get_dram_info()
395 				ast->dram_type = AST_DRAM_512Mx32;  in ast_get_dram_info()
398 			ast->dram_type = AST_DRAM_1Gx32;  in ast_get_dram_info()
423 	ast->mclk = ref_pll * (num + 2) / ((denum + 2) * (div * 1000));  in ast_get_dram_info()
436 	ast = devm_drm_dev_alloc(&pdev->dev, drv, struct ast_device, base);  in ast_device_create()
439 	dev = &ast->base;  in ast_device_create()
443 	ret = drmm_mutex_init(dev, &ast->ioregs_lock);  in ast_device_create()
447 	ast->regs = pcim_iomap(pdev, 1, 0);  in ast_device_create()
448 	if (!ast->regs)  in ast_device_create()
449 		return ERR_PTR(-EIO);  in ast_device_create()
455 	if (pdev->revision >= 0x40) {  in ast_device_create()
456 		ast->ioregs = ast->regs + AST_IO_MM_OFFSET;  in ast_device_create()
459 		ast->ioregs = ast->regs + AST_IO_MM_OFFSET;  in ast_device_create()
463 	if (!ast->ioregs) {  in ast_device_create()
464 		ast->ioregs = pcim_iomap(pdev, 2, 0);  in ast_device_create()
465 		if (!ast->ioregs)  in ast_device_create()
466 			return ERR_PTR(-EIO);  in ast_device_create()
499 		 ast->mclk, ast->dram_type, ast->dram_bus_width);  in ast_device_create()
509 	ast->dp501_fw_buf = NULL;  in ast_device_create()
510 	if (ast->vram_size < pci_resource_len(pdev, 0)) {  in ast_device_create()
511 		ast->dp501_fw_buf = pci_iomap_range(pdev, 0, ast->vram_size, 0);  in ast_device_create()
512 		if (!ast->dp501_fw_buf)  in ast_device_create()