drm/ast/ast_main.c

38 static void ast_detect_widescreen(struct ast_device *ast)
43 	switch (AST_GEN(ast)) {
45 		ast->support_wide_screen = false;
48 		jreg = ast_get_index_reg_mask(ast, AST_IO_VGACRI, 0xd0, 0xff);
50 			ast->support_wide_screen = true;
52 			ast->support_wide_screen = true;
54 			ast->support_wide_screen = false;
55 			if (ast->chip == AST1300)
56 				ast->support_wide_screen = true;
57 			if (ast->chip == AST1400)
58 				ast->support_wide_screen = true;
59 			if (ast->chip == AST2510)
60 				ast->support_wide_screen = true;
61 			if (IS_AST_GEN7(ast))
62 				ast->support_wide_screen = true;
68 static void ast_detect_tx_chip(struct ast_device *ast, bool need_post)
70 	struct drm_device *dev = &ast->base;
74 	ast->tx_chip_types |= AST_TX_NONE_BIT;
85 		jreg = ast_get_index_reg_mask(ast, AST_IO_VGACRI, 0xa3, 0xff);
87 			ast->tx_chip_types = AST_TX_SIL164_BIT;
90 	if (IS_AST_GEN4(ast) || IS_AST_GEN5(ast) || IS_AST_GEN6(ast)) {
96 		jreg = ast_get_index_reg_mask(ast, AST_IO_VGACRI, 0xd1, 0xff);
99 			ast->tx_chip_types = AST_TX_SIL164_BIT;
102 			ast->dp501_fw_addr = drmm_kzalloc(dev, 32*1024, GFP_KERNEL);
103 			if (ast->dp501_fw_addr) {
105 				if (ast_backup_fw(dev, ast->dp501_fw_addr, 32*1024)) {
106 					drmm_kfree(dev, ast->dp501_fw_addr);
107 					ast->dp501_fw_addr = NULL;
112 			ast->tx_chip_types = AST_TX_DP501_BIT;
114 	} else if (IS_AST_GEN7(ast)) {
115 		if (ast_get_index_reg_mask(ast, AST_IO_VGACRI, 0xD1, TX_TYPE_MASK) ==
117 			ast->tx_chip_types = AST_TX_ASTDP_BIT;
118 			ast_dp_launch(&ast->base);
123 	if (ast->tx_chip_types & AST_TX_NONE_BIT)
125 	if (ast->tx_chip_types & AST_TX_SIL164_BIT)
127 	if (ast->tx_chip_types & AST_TX_DP501_BIT)
129 	if (ast->tx_chip_types & AST_TX_ASTDP_BIT)
136 	struct ast_device *ast = to_ast_device(dev);
140 	switch (ast->config_mode) {
157 		ast_write32(ast, 0xf004, 0x1e6e0000);
158 		ast_write32(ast, 0xf000, 0x1);
159 		mcr_cfg = ast_read32(ast, 0x10004);
160 		mcr_scu_mpll = ast_read32(ast, 0x10120);
161 		mcr_scu_strap = ast_read32(ast, 0x10170);
165 		ast->dram_bus_width = 16;
166 		ast->dram_type = AST_DRAM_1Gx16;
167 		if (IS_AST_GEN6(ast))
168 			ast->mclk = 800;
170 			ast->mclk = 396;
175 		ast->dram_bus_width = 16;
177 		ast->dram_bus_width = 32;
179 	if (IS_AST_GEN6(ast)) {
182 			ast->dram_type = AST_DRAM_1Gx16;
186 			ast->dram_type = AST_DRAM_2Gx16;
189 			ast->dram_type = AST_DRAM_4Gx16;
192 			ast->dram_type = AST_DRAM_8Gx16;
195 	} else if (IS_AST_GEN4(ast) || IS_AST_GEN5(ast)) {
198 			ast->dram_type = AST_DRAM_512Mx16;
202 			ast->dram_type = AST_DRAM_1Gx16;
205 			ast->dram_type = AST_DRAM_2Gx16;
208 			ast->dram_type = AST_DRAM_4Gx16;
215 			ast->dram_type = AST_DRAM_512Mx16;
219 				ast->dram_type = AST_DRAM_1Gx16;
221 				ast->dram_type = AST_DRAM_512Mx32;
224 			ast->dram_type = AST_DRAM_1Gx32;
249 	ast->mclk = ref_pll * (num + 2) / ((denum + 2) * (div * 1000));
262 	struct ast_device *ast;
265 	ast = devm_drm_dev_alloc(&pdev->dev, drv, struct ast_device, base);
266 	if (IS_ERR(ast))
267 		return ERR_CAST(ast);
268 	dev = &ast->base;
270 	ast->chip = chip;
271 	ast->config_mode = config_mode;
272 	ast->regs = regs;
273 	ast->ioregs = ioregs;
275 	ast_detect_widescreen(ast);
276 	ast_detect_tx_chip(ast, need_post);
283 		 ast->mclk, ast->dram_type, ast->dram_bus_width);
288 	ret = ast_mm_init(ast);
293 	ast->dp501_fw_buf = NULL;
294 	if (ast->vram_size < pci_resource_len(pdev, 0)) {
295 		ast->dp501_fw_buf = pci_iomap_range(pdev, 0, ast->vram_size, 0);
296 		if (!ast->dp501_fw_buf)
300 	ret = ast_mode_config_init(ast);