LXR uboot/drivers/qe/fdt.c

   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 <asm/global_data.h>
  11#include <linux/libfdt.h>
  12#include <fdt_support.h>
  13#include <fsl_qe.h>
  14
  15#ifdef CONFIG_QE
  16DECLARE_GLOBAL_DATA_PTR;
  17
  18/*
  19 * If a QE firmware has been uploaded, then add the 'firmware' node under
  20 * the 'qe' node.
  21 */
  22void 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
  56error:
  57        fdt_del_node(blob, node);
  58}
  59
  60void 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