23 /* System Bus Controller registers */
52 	dev_dbg(priv->dev,  in uniphier_system_bus_add_bank()
56 	if (bank >= ARRAY_SIZE(priv->bank)) {  in uniphier_system_bus_add_bank()
57 		dev_err(priv->dev, "unsupported bank number %d\n", bank);  in uniphier_system_bus_add_bank()
58 		return -EINVAL;  in uniphier_system_bus_add_bank()
61 	if (priv->bank[bank].base || priv->bank[bank].end) {  in uniphier_system_bus_add_bank()
62 		dev_err(priv->dev,  in uniphier_system_bus_add_bank()
64 		return -EINVAL;  in uniphier_system_bus_add_bank()
68 		dev_err(priv->dev, "base address %llx is too high\n", paddr);  in uniphier_system_bus_add_bank()
69 		return -EINVAL;  in uniphier_system_bus_add_bank()
75 		dev_err(priv->dev,  in uniphier_system_bus_add_bank()
78 		return -EINVAL;  in uniphier_system_bus_add_bank()
80 	paddr -= addr;  in uniphier_system_bus_add_bank()
86 		dev_err(priv->dev, "end address %08llx is too high\n", end);  in uniphier_system_bus_add_bank()
87 		return -EINVAL;  in uniphier_system_bus_add_bank()
89 	mask = paddr ^ (end - 1);  in uniphier_system_bus_add_bank()
95 	priv->bank[bank].base = paddr;  in uniphier_system_bus_add_bank()
96 	priv->bank[bank].end = end;  in uniphier_system_bus_add_bank()
98 	dev_dbg(priv->dev, "range added: bank = %d, addr = %08x, end = %08x\n",  in uniphier_system_bus_add_bank()
99 		bank, priv->bank[bank].base, priv->bank[bank].end);  in uniphier_system_bus_add_bank()
109 	for (i = 0; i < ARRAY_SIZE(priv->bank); i++) {  in uniphier_system_bus_check_overlap()
110 		for (j = i + 1; j < ARRAY_SIZE(priv->bank); j++) {  in uniphier_system_bus_check_overlap()
111 			if (priv->bank[i].end > priv->bank[j].base &&  in uniphier_system_bus_check_overlap()
112 			    priv->bank[i].base < priv->bank[j].end) {  in uniphier_system_bus_check_overlap()
113 				dev_err(priv->dev,  in uniphier_system_bus_check_overlap()
116 				return -EINVAL;  in uniphier_system_bus_check_overlap()
127 	void __iomem *base_reg = priv->membase + UNIPHIER_SBC_BASE;  in uniphier_system_bus_check_boot_swap()
132 	dev_dbg(priv->dev, "Boot Swap: %s\n", is_swapped ? "on" : "off");  in uniphier_system_bus_check_boot_swap()
135 	 * If BOOT_SWAP was asserted on power-on-reset, the CS0 and CS1 are  in uniphier_system_bus_check_boot_swap()
139 		swap(priv->bank[0], priv->bank[1]);  in uniphier_system_bus_check_boot_swap()
145 	void __iomem *base_reg = priv->membase + UNIPHIER_SBC_BASE;  in uniphier_system_bus_set_reg()
149 	for (i = 0; i < ARRAY_SIZE(priv->bank); i++) {  in uniphier_system_bus_set_reg()
150 		base = priv->bank[i].base;  in uniphier_system_bus_set_reg()
151 		end = priv->bank[i].end;  in uniphier_system_bus_set_reg()
156 			 * to anywhere in the system bus space is routed to  in uniphier_system_bus_set_reg()
172 			mask = base ^ (end - 1);  in uniphier_system_bus_set_reg()
178 		dev_dbg(priv->dev, "SBC_BASE[%d] = 0x%08x\n", i, val);  in uniphier_system_bus_set_reg()
186 	struct device *dev = &pdev->dev;  in uniphier_system_bus_probe()
196 		return -ENOMEM;  in uniphier_system_bus_probe()
199 	priv->membase = devm_ioremap_resource(dev, regs);  in uniphier_system_bus_probe()
200 	if (IS_ERR(priv->membase))  in uniphier_system_bus_probe()
201 		return PTR_ERR(priv->membase);  in uniphier_system_bus_probe()
203 	priv->dev = dev;  in uniphier_system_bus_probe()
205 	pna = of_n_addr_cells(dev->of_node);  in uniphier_system_bus_probe()
207 	ret = of_property_read_u32(dev->of_node, "#address-cells", &cells);  in uniphier_system_bus_probe()
209 		dev_err(dev, "failed to get #address-cells\n");  in uniphier_system_bus_probe()
213 		dev_err(dev, "#address-cells must be 2\n");  in uniphier_system_bus_probe()
214 		return -EINVAL;  in uniphier_system_bus_probe()
217 	ret = of_property_read_u32(dev->of_node, "#size-cells", &cells);  in uniphier_system_bus_probe()
219 		dev_err(dev, "failed to get #size-cells\n");  in uniphier_system_bus_probe()
223 		dev_err(dev, "#size-cells must be 1\n");  in uniphier_system_bus_probe()
224 		return -EINVAL;  in uniphier_system_bus_probe()
227 	ranges = of_get_property(dev->of_node, "ranges", &rlen);  in uniphier_system_bus_probe()
230 		return -ENOENT;  in uniphier_system_bus_probe()
236 	for (; rlen >= rone; rlen -= rone) {  in uniphier_system_bus_probe()
239 		paddr = of_translate_address(dev->of_node, ranges);  in uniphier_system_bus_probe()
241 			return -EINVAL;  in uniphier_system_bus_probe()
261 	/* Now, the bus is configured.  Populate platform_devices below it */  in uniphier_system_bus_probe()
262 	return of_platform_default_populate(dev->of_node, NULL, dev);  in uniphier_system_bus_probe()
277 	{ .compatible = "socionext,uniphier-system-bus" },
285 		.name	= "uniphier-system-bus",
293 MODULE_DESCRIPTION("UniPhier System Bus driver");