xref: /openbmc/u-boot/drivers/qe/fdt.c (revision 7fb46430)
1 /*
2  * Copyright 2008 Freescale Semiconductor, Inc.
3  *
4  * (C) Copyright 2000
5  * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
6  *
7  * SPDX-License-Identifier:	GPL-2.0+
8  */
9 
10 #include <common.h>
11 #include <libfdt.h>
12 #include <fdt_support.h>
13 #include <fsl_qe.h>
14 
15 #ifdef CONFIG_QE
16 DECLARE_GLOBAL_DATA_PTR;
17 
18 /*
19  * If a QE firmware has been uploaded, then add the 'firmware' node under
20  * the 'qe' node.
21  */
22 void fdt_fixup_qe_firmware(void *blob)
23 {
24 	struct qe_firmware_info *qe_fw_info;
25 	int node, ret;
26 
27 	qe_fw_info = qe_get_firmware_info();
28 	if (!qe_fw_info)
29 		return;
30 
31 	node = fdt_path_offset(blob, "/qe");
32 	if (node < 0)
33 		return;
34 
35 	/* We assume the node doesn't exist yet */
36 	node = fdt_add_subnode(blob, node, "firmware");
37 	if (node < 0)
38 		return;
39 
40 	ret = fdt_setprop(blob, node, "extended-modes",
41 		&qe_fw_info->extended_modes, sizeof(u64));
42 	if (ret < 0)
43 		goto error;
44 
45 	ret = fdt_setprop_string(blob, node, "id", qe_fw_info->id);
46 	if (ret < 0)
47 		goto error;
48 
49 	ret = fdt_setprop(blob, node, "virtual-traps", qe_fw_info->vtraps,
50 		sizeof(qe_fw_info->vtraps));
51 	if (ret < 0)
52 		goto error;
53 
54 	return;
55 
56 error:
57 	fdt_del_node(blob, node);
58 }
59 
60 void ft_qe_setup(void *blob)
61 {
62 	do_fixup_by_prop_u32(blob, "device_type", "qe", 4,
63 		"bus-frequency", gd->arch.qe_clk, 1);
64 	do_fixup_by_prop_u32(blob, "device_type", "qe", 4,
65 		"brg-frequency", gd->arch.brg_clk, 1);
66 	do_fixup_by_compat_u32(blob, "fsl,qe",
67 		"clock-frequency", gd->arch.qe_clk, 1);
68 	do_fixup_by_compat_u32(blob, "fsl,qe",
69 		"bus-frequency", gd->arch.qe_clk, 1);
70 	do_fixup_by_compat_u32(blob, "fsl,qe",
71 		"brg-frequency", gd->arch.brg_clk, 1);
72 	do_fixup_by_compat_u32(blob, "fsl,qe-gtm",
73 		"clock-frequency", gd->arch.qe_clk / 2, 1);
74 	fdt_fixup_qe_firmware(blob);
75 }
76 #endif
77