69 lines
1.6 KiB
C
69 lines
1.6 KiB
C
/*
|
|
* Copyright 2014 Freescale Semiconductor, Inc.
|
|
*
|
|
* SPDX-License-Identifier: GPL-2.0+
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <libfdt.h>
|
|
#include <fdt_support.h>
|
|
#include "mp.h"
|
|
|
|
#ifdef CONFIG_MP
|
|
void ft_fixup_cpu(void *blob)
|
|
{
|
|
int off;
|
|
__maybe_unused u64 spin_tbl_addr = (u64)get_spin_tbl_addr();
|
|
fdt32_t *reg;
|
|
int addr_cells;
|
|
u64 val, core_id;
|
|
size_t *boot_code_size = &(__secondary_boot_code_size);
|
|
|
|
off = fdt_path_offset(blob, "/cpus");
|
|
if (off < 0) {
|
|
puts("couldn't find /cpus node\n");
|
|
return;
|
|
}
|
|
of_bus_default_count_cells(blob, off, &addr_cells, NULL);
|
|
|
|
off = fdt_node_offset_by_prop_value(blob, -1, "device_type", "cpu", 4);
|
|
while (off != -FDT_ERR_NOTFOUND) {
|
|
reg = (fdt32_t *)fdt_getprop(blob, off, "reg", 0);
|
|
core_id = of_read_number(reg, addr_cells);
|
|
if (reg) {
|
|
if (core_id == 0 || (is_core_online(core_id))) {
|
|
val = spin_tbl_addr;
|
|
val += id_to_core(core_id) *
|
|
SPIN_TABLE_ELEM_SIZE;
|
|
val = cpu_to_fdt64(val);
|
|
fdt_setprop_string(blob, off, "enable-method",
|
|
"spin-table");
|
|
fdt_setprop(blob, off, "cpu-release-addr",
|
|
&val, sizeof(val));
|
|
} else {
|
|
debug("skipping offline core\n");
|
|
}
|
|
} else {
|
|
puts("Warning: found cpu node without reg property\n");
|
|
}
|
|
off = fdt_node_offset_by_prop_value(blob, off, "device_type",
|
|
"cpu", 4);
|
|
}
|
|
|
|
fdt_add_mem_rsv(blob, (uintptr_t)&secondary_boot_code,
|
|
*boot_code_size);
|
|
}
|
|
#endif
|
|
|
|
void ft_cpu_setup(void *blob, bd_t *bd)
|
|
{
|
|
#ifdef CONFIG_MP
|
|
ft_fixup_cpu(blob);
|
|
#endif
|
|
|
|
#ifdef CONFIG_SYS_NS16550
|
|
do_fixup_by_compat_u32(blob, "ns16550",
|
|
"clock-frequency", CONFIG_SYS_NS16550_CLK, 1);
|
|
#endif
|
|
}
|