util.c
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// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (c) 2013 Google, Inc
*/
#include <common.h>
#include <dm/device.h>
#include <dm/ofnode.h>
#include <dm/read.h>
#include <dm/util.h>
#include <linux/libfdt.h>
#include <vsprintf.h>
#ifdef CONFIG_DM_WARN
void dm_warn(const char *fmt, ...)
{
va_list args;
va_start(args, fmt);
vprintf(fmt, args);
va_end(args);
}
#endif
int list_count_items(struct list_head *head)
{
struct list_head *node;
int count = 0;
list_for_each(node, head)
count++;
return count;
}
#if CONFIG_IS_ENABLED(OF_CONTROL) && !CONFIG_IS_ENABLED(OF_PLATDATA)
bool dm_ofnode_pre_reloc(ofnode node)
{
#if defined(CONFIG_SPL_BUILD) || defined(CONFIG_TPL_BUILD)
/* for SPL and TPL the remaining nodes after the fdtgrep 1st pass
* had property dm-pre-reloc or u-boot,dm-spl/tpl.
* They are removed in final dtb (fdtgrep 2nd pass)
*/
return true;
#else
if (ofnode_read_bool(node, "u-boot,dm-pre-reloc"))
return true;
if (ofnode_read_bool(node, "u-boot,dm-pre-proper"))
return true;
/*
* In regular builds individual spl and tpl handling both
* count as handled pre-relocation for later second init.
*/
if (ofnode_read_bool(node, "u-boot,dm-spl") ||
ofnode_read_bool(node, "u-boot,dm-tpl"))
return true;
return false;
#endif
}
#endif
#if !CONFIG_IS_ENABLED(OF_PLATDATA)
int pci_get_devfn(struct udevice *dev)
{
struct fdt_pci_addr addr;
int ret;
/* Extract the devfn from fdt_pci_addr */
ret = ofnode_read_pci_addr(dev_ofnode(dev), FDT_PCI_SPACE_CONFIG,
"reg", &addr);
if (ret) {
if (ret != -ENOENT)
return -EINVAL;
}
return addr.phys_hi & 0xff00;
}
#endif