xref: /openbmc/u-boot/drivers/qe/fdt.c (revision 57efeb04)
1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3  * Copyright 2008 Freescale Semiconductor, Inc.
4  *
5  * (C) Copyright 2000
6  * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
7  */
8 
9 #include <common.h>
10 #include <linux/libfdt.h>
11 #include <fdt_support.h>
12 #include <fsl_qe.h>
13 
14 #ifdef CONFIG_QE
15 DECLARE_GLOBAL_DATA_PTR;
16 
17 /*
18  * If a QE firmware has been uploaded, then add the 'firmware' node under
19  * the 'qe' node.
20  */
21 void fdt_fixup_qe_firmware(void *blob)
22 {
23 	struct qe_firmware_info *qe_fw_info;
24 	int node, ret;
25 
26 	qe_fw_info = qe_get_firmware_info();
27 	if (!qe_fw_info)
28 		return;
29 
30 	node = fdt_path_offset(blob, "/qe");
31 	if (node < 0)
32 		return;
33 
34 	/* We assume the node doesn't exist yet */
35 	node = fdt_add_subnode(blob, node, "firmware");
36 	if (node < 0)
37 		return;
38 
39 	ret = fdt_setprop(blob, node, "extended-modes",
40 		&qe_fw_info->extended_modes, sizeof(u64));
41 	if (ret < 0)
42 		goto error;
43 
44 	ret = fdt_setprop_string(blob, node, "id", qe_fw_info->id);
45 	if (ret < 0)
46 		goto error;
47 
48 	ret = fdt_setprop(blob, node, "virtual-traps", qe_fw_info->vtraps,
49 		sizeof(qe_fw_info->vtraps));
50 	if (ret < 0)
51 		goto error;
52 
53 	return;
54 
55 error:
56 	fdt_del_node(blob, node);
57 }
58 
59 void ft_qe_setup(void *blob)
60 {
61 	do_fixup_by_prop_u32(blob, "device_type", "qe", 4,
62 		"bus-frequency", gd->arch.qe_clk, 1);
63 	do_fixup_by_prop_u32(blob, "device_type", "qe", 4,
64 		"brg-frequency", gd->arch.brg_clk, 1);
65 	do_fixup_by_compat_u32(blob, "fsl,qe",
66 		"clock-frequency", gd->arch.qe_clk, 1);
67 	do_fixup_by_compat_u32(blob, "fsl,qe",
68 		"bus-frequency", gd->arch.qe_clk, 1);
69 	do_fixup_by_compat_u32(blob, "fsl,qe",
70 		"brg-frequency", gd->arch.brg_clk, 1);
71 	do_fixup_by_compat_u32(blob, "fsl,qe-gtm",
72 		"clock-frequency", gd->arch.qe_clk / 2, 1);
73 	fdt_fixup_qe_firmware(blob);
74 }
75 #endif
76