historical/m0-applesillicon.git/xnu-qemu-arm64-5.1.0/roms/u-boot-sam460ex/drivers/qe/fdt.c
2024-01-16 11:20:27 -06:00

92 lines
2.4 KiB
C

/*
* Copyright 2008 Freescale Semiconductor, Inc.
*
* (C) Copyright 2000
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
*
* See file CREDITS for list of people who contributed to this
* project.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
#include <common.h>
#include <libfdt.h>
#include <fdt_support.h>
#include "qe.h"
DECLARE_GLOBAL_DATA_PTR;
/*
* If a QE firmware has been uploaded, then add the 'firmware' node under
* the 'qe' node.
*/
void fdt_fixup_qe_firmware(void *blob)
{
struct qe_firmware_info *qe_fw_info;
int node, ret;
qe_fw_info = qe_get_firmware_info();
if (!qe_fw_info)
return;
node = fdt_path_offset(blob, "/qe");
if (node < 0)
return;
/* We assume the node doesn't exist yet */
node = fdt_add_subnode(blob, node, "firmware");
if (node < 0)
return;
ret = fdt_setprop(blob, node, "extended-modes",
&qe_fw_info->extended_modes, sizeof(u64));
if (ret < 0)
goto error;
ret = fdt_setprop_string(blob, node, "id", qe_fw_info->id);
if (ret < 0)
goto error;
ret = fdt_setprop(blob, node, "virtual-traps", qe_fw_info->vtraps,
sizeof(qe_fw_info->vtraps));
if (ret < 0)
goto error;
return;
error:
fdt_del_node(blob, node);
}
void ft_qe_setup(void *blob)
{
#ifdef CONFIG_QE
do_fixup_by_prop_u32(blob, "device_type", "qe", 4,
"bus-frequency", gd->qe_clk, 1);
do_fixup_by_prop_u32(blob, "device_type", "qe", 4,
"brg-frequency", gd->brg_clk, 1);
do_fixup_by_compat_u32(blob, "fsl,qe",
"clock-frequency", gd->qe_clk, 1);
do_fixup_by_compat_u32(blob, "fsl,qe",
"bus-frequency", gd->qe_clk, 1);
do_fixup_by_compat_u32(blob, "fsl,qe",
"brg-frequency", gd->brg_clk, 1);
do_fixup_by_compat_u32(blob, "fsl,qe-gtm",
"clock-frequency", gd->qe_clk / 2, 1);
fdt_fixup_qe_firmware(blob);
#endif
}