xref: /openbmc/u-boot/arch/powerpc/cpu/mpc86xx/fdt.c (revision e2901ab8)
1 /*
2  * Copyright 2008, 2011 Freescale Semiconductor, Inc.
3  *
4  * SPDX-License-Identifier:	GPL-2.0
5  */
6 
7 #include <common.h>
8 #include <libfdt.h>
9 #include <fdt_support.h>
10 #include <asm/mp.h>
11 
12 DECLARE_GLOBAL_DATA_PTR;
13 
14 extern void ft_fixup_num_cores(void *blob);
15 extern void ft_srio_setup(void *blob);
16 
17 void ft_cpu_setup(void *blob, bd_t *bd)
18 {
19 #ifdef CONFIG_MP
20 	int off;
21 	u32 bootpg = determine_mp_bootpg(NULL);
22 #endif
23 
24 	do_fixup_by_prop_u32(blob, "device_type", "cpu", 4,
25 			     "timebase-frequency", bd->bi_busfreq / 4, 1);
26 	do_fixup_by_prop_u32(blob, "device_type", "cpu", 4,
27 			     "bus-frequency", bd->bi_busfreq, 1);
28 	do_fixup_by_prop_u32(blob, "device_type", "cpu", 4,
29 			     "clock-frequency", bd->bi_intfreq, 1);
30 	do_fixup_by_prop_u32(blob, "device_type", "soc", 4,
31 			     "bus-frequency", bd->bi_busfreq, 1);
32 
33 	fdt_fixup_memory(blob, (u64)bd->bi_memstart, (u64)bd->bi_memsize);
34 
35 #ifdef CONFIG_SYS_NS16550
36 	do_fixup_by_compat_u32(blob, "ns16550",
37 			       "clock-frequency", CONFIG_SYS_NS16550_CLK, 1);
38 #endif
39 
40 #ifdef CONFIG_MP
41 	/* Reserve the boot page so OSes dont use it */
42 	off = fdt_add_mem_rsv(blob, bootpg, (u64)4096);
43 	if (off < 0)
44 		printf("%s: %s\n", __FUNCTION__, fdt_strerror(off));
45 
46 	ft_fixup_num_cores(blob);
47 #endif
48 
49 #ifdef CONFIG_SYS_SRIO
50 	ft_srio_setup(blob);
51 #endif
52 }
53