xref: /openbmc/u-boot/drivers/qe/fdt.c (revision bfc93fb4)
1 /*
2  * Copyright 2008 Freescale Semiconductor, Inc.
3  *
4  * (C) Copyright 2000
5  * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
6  *
7  * See file CREDITS for list of people who contributed to this
8  * project.
9  *
10  * This program is free software; you can redistribute it and/or
11  * modify it under the terms of the GNU General Public License as
12  * published by the Free Software Foundation; either version 2 of
13  * the License, or (at your option) any later version.
14  *
15  * This program is distributed in the hope that it will be useful,
16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
18  * GNU General Public License for more details.
19  *
20  * You should have received a copy of the GNU General Public License
21  * along with this program; if not, write to the Free Software
22  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
23  * MA 02111-1307 USA
24  */
25 
26 #include <common.h>
27 #include <libfdt.h>
28 #include <fdt_support.h>
29 #include "qe.h"
30 
31 DECLARE_GLOBAL_DATA_PTR;
32 
33 /*
34  * If a QE firmware has been uploaded, then add the 'firmware' node under
35  * the 'qe' node.
36  */
37 void fdt_fixup_qe_firmware(void *blob)
38 {
39 	struct qe_firmware_info *qe_fw_info;
40 	int node, ret;
41 
42 	qe_fw_info = qe_get_firmware_info();
43 	if (!qe_fw_info)
44 		return;
45 
46 	node = fdt_path_offset(blob, "/qe");
47 	if (node < 0)
48 		return;
49 
50 	/* We assume the node doesn't exist yet */
51 	node = fdt_add_subnode(blob, node, "firmware");
52 	if (node < 0)
53 		return;
54 
55 	ret = fdt_setprop(blob, node, "extended-modes",
56 		&qe_fw_info->extended_modes, sizeof(u64));
57 	if (ret < 0)
58 		goto error;
59 
60 	ret = fdt_setprop_string(blob, node, "id", qe_fw_info->id);
61 	if (ret < 0)
62 		goto error;
63 
64 	ret = fdt_setprop(blob, node, "virtual-traps", qe_fw_info->vtraps,
65 		sizeof(qe_fw_info->vtraps));
66 	if (ret < 0)
67 		goto error;
68 
69 	return;
70 
71 error:
72 	fdt_del_node(blob, node);
73 }
74 
75 void ft_qe_setup(void *blob)
76 {
77 	do_fixup_by_prop_u32(blob, "device_type", "qe", 4,
78 		"bus-frequency", gd->qe_clk, 1);
79 	do_fixup_by_prop_u32(blob, "device_type", "qe", 4,
80 		"brg-frequency", gd->brg_clk, 1);
81 	do_fixup_by_compat_u32(blob, "fsl,qe",
82 		"clock-frequency", gd->qe_clk, 1);
83 	do_fixup_by_compat_u32(blob, "fsl,qe",
84 		"bus-frequency", gd->qe_clk, 1);
85 	do_fixup_by_compat_u32(blob, "fsl,qe",
86 		"brg-frequency", gd->brg_clk, 1);
87 	do_fixup_by_compat_u32(blob, "fsl,qe-gtm",
88 		"clock-frequency", gd->qe_clk / 2, 1);
89 	fdt_fixup_qe_firmware(blob);
90 }
91