soc/loongson/loongson2_guts.c

1 // SPDX-License-Identifier: GPL-2.0+
4  * Copyright (C) 2022-2023 Loongson Technology Corporation Limited
36 	u8      res2[0x3ff8 - 0x18];
51 /* SoC die attribute definition for Loongson-2 platform */
55 	 * LoongArch-based SoCs Loongson-2 Series
69 	while (matches->svr) {  in loongson2_soc_die_match()
70 		if (matches->svr == (svr & matches->mask))  in loongson2_soc_die_match()
82 	if (!guts || !guts->regs)  in loongson2_guts_get_svr()
85 	if (guts->little_endian)  in loongson2_guts_get_svr()
86 		svr = ioread32(&guts->regs->svr);  in loongson2_guts_get_svr()
88 		svr = ioread32be(&guts->regs->svr);  in loongson2_guts_get_svr()
95 	struct device_node *root, *np = pdev->dev.of_node;  in loongson2_guts_probe()
96 	struct device *dev = &pdev->dev;  in loongson2_guts_probe()
104 		return -ENOMEM;  in loongson2_guts_probe()
106 	guts->little_endian = of_property_read_bool(np, "little-endian");  in loongson2_guts_probe()
108 	guts->regs = devm_platform_ioremap_resource(pdev, 0);  in loongson2_guts_probe()
109 	if (IS_ERR(guts->regs))  in loongson2_guts_probe()
110 		return PTR_ERR(guts->regs);  in loongson2_guts_probe()
124 						     "Loongson %s", soc_die->die);  in loongson2_guts_probe()
129 		return -ENOMEM;  in loongson2_guts_probe()
133 		return -ENOMEM;  in loongson2_guts_probe()
137 		return -ENOMEM;  in loongson2_guts_probe()
158  * guts node, for Loongson-2 SoCs.
161 	{ .compatible = "loongson,ls2k-chipid", },
168 		.name = "loongson2-guts",