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![Tom Rini](/assets/img/avatar_default.png)
When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. 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+
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/*
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* Copyright (C) 2016 Socionext Inc.
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* Author: Masahiro Yamada <yamada.masahiro@socionext.com>
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*/
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#include <common.h>
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#include <linux/libfdt.h>
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#include <asm/spin_table.h>
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int spin_table_update_dt(void *fdt)
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{
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int cpus_offset, offset;
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const char *prop;
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int ret;
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unsigned long rsv_addr = (unsigned long)&spin_table_reserve_begin;
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unsigned long rsv_size = &spin_table_reserve_end -
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&spin_table_reserve_begin;
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cpus_offset = fdt_path_offset(fdt, "/cpus");
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if (cpus_offset < 0)
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return -ENODEV;
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for (offset = fdt_first_subnode(fdt, cpus_offset);
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offset >= 0;
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offset = fdt_next_subnode(fdt, offset)) {
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prop = fdt_getprop(fdt, offset, "device_type", NULL);
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if (!prop || strcmp(prop, "cpu"))
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continue;
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/*
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* In the first loop, we check if every CPU node specifies
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* spin-table. Otherwise, just return successfully to not
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* disturb other methods, like psci.
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*/
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prop = fdt_getprop(fdt, offset, "enable-method", NULL);
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if (!prop || strcmp(prop, "spin-table"))
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return 0;
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}
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for (offset = fdt_first_subnode(fdt, cpus_offset);
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offset >= 0;
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offset = fdt_next_subnode(fdt, offset)) {
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prop = fdt_getprop(fdt, offset, "device_type", NULL);
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if (!prop || strcmp(prop, "cpu"))
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continue;
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ret = fdt_setprop_u64(fdt, offset, "cpu-release-addr",
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(unsigned long)&spin_table_cpu_release_addr);
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if (ret)
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return -ENOSPC;
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}
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ret = fdt_add_mem_rsv(fdt, rsv_addr, rsv_size);
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if (ret)
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return -ENOSPC;
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printf(" Reserved memory region for spin-table: addr=%lx size=%lx\n",
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rsv_addr, rsv_size);
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return 0;
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}
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