mirror of
https://source.denx.de/u-boot/u-boot.git
synced 2025-08-11 09:47:00 +02:00
d678a59d2d
When bringing in the series 'arm: dts: am62-beagleplay: Fix Beagleplay Ethernet"' I failed to notice that b4 noticed it was based on next and so took that as the base commit and merged that part of next to master. This reverts commitc8ffd1356d, reversing changes made to2ee6f3a5f7. Reported-by: Jonas Karlman <jonas@kwiboo.se> Signed-off-by: Tom Rini <trini@konsulko.com>
63 lines
1.6 KiB
C
63 lines
1.6 KiB
C
// SPDX-License-Identifier: GPL-2.0+
|
|
/*
|
|
* Copyright (C) 2016 Socionext Inc.
|
|
* Author: Masahiro Yamada <yamada.masahiro@socionext.com>
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <linux/libfdt.h>
|
|
#include <asm/spin_table.h>
|
|
|
|
int spin_table_update_dt(void *fdt)
|
|
{
|
|
int cpus_offset, offset;
|
|
const char *prop;
|
|
int ret;
|
|
unsigned long rsv_addr = (unsigned long)&spin_table_reserve_begin;
|
|
unsigned long rsv_size = &spin_table_reserve_end -
|
|
&spin_table_reserve_begin;
|
|
|
|
cpus_offset = fdt_path_offset(fdt, "/cpus");
|
|
if (cpus_offset < 0)
|
|
return -ENODEV;
|
|
|
|
for (offset = fdt_first_subnode(fdt, cpus_offset);
|
|
offset >= 0;
|
|
offset = fdt_next_subnode(fdt, offset)) {
|
|
prop = fdt_getprop(fdt, offset, "device_type", NULL);
|
|
if (!prop || strcmp(prop, "cpu"))
|
|
continue;
|
|
|
|
/*
|
|
* In the first loop, we check if every CPU node specifies
|
|
* spin-table. Otherwise, just return successfully to not
|
|
* disturb other methods, like psci.
|
|
*/
|
|
prop = fdt_getprop(fdt, offset, "enable-method", NULL);
|
|
if (!prop || strcmp(prop, "spin-table"))
|
|
return 0;
|
|
}
|
|
|
|
for (offset = fdt_first_subnode(fdt, cpus_offset);
|
|
offset >= 0;
|
|
offset = fdt_next_subnode(fdt, offset)) {
|
|
prop = fdt_getprop(fdt, offset, "device_type", NULL);
|
|
if (!prop || strcmp(prop, "cpu"))
|
|
continue;
|
|
|
|
ret = fdt_setprop_u64(fdt, offset, "cpu-release-addr",
|
|
(unsigned long)&spin_table_cpu_release_addr);
|
|
if (ret)
|
|
return -ENOSPC;
|
|
}
|
|
|
|
ret = fdt_add_mem_rsv(fdt, rsv_addr, rsv_size);
|
|
if (ret)
|
|
return -ENOSPC;
|
|
|
|
printf(" Reserved memory region for spin-table: addr=%lx size=%lx\n",
|
|
rsv_addr, rsv_size);
|
|
|
|
return 0;
|
|
}
|