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c978b524 CZ |
1 | /* |
2 | * (C) Copyright 2008 - 2013 Tensilica Inc. | |
3 | * (C) Copyright 2014 - 2016 Cadence Design Systems Inc. | |
4 | * | |
5 | * SPDX-License-Identifier: GPL-2.0+ | |
6 | */ | |
7 | ||
8 | /* | |
9 | * CPU specific code | |
10 | */ | |
11 | ||
12 | #include <common.h> | |
13 | #include <command.h> | |
14 | #include <linux/stringify.h> | |
15 | #include <asm/global_data.h> | |
16 | #include <asm/cache.h> | |
17 | #include <asm/string.h> | |
18 | #include <asm/misc.h> | |
19 | ||
20 | DECLARE_GLOBAL_DATA_PTR; | |
21 | ||
22 | gd_t *gd __attribute__((section(".data"))); | |
23 | ||
24 | #if defined(CONFIG_DISPLAY_CPUINFO) | |
25 | /* | |
26 | * Print information about the CPU. | |
27 | */ | |
28 | ||
29 | int print_cpuinfo(void) | |
30 | { | |
31 | char buf[120], mhz[8]; | |
32 | uint32_t id0, id1; | |
33 | ||
34 | asm volatile ("rsr %0, 176\n" | |
35 | "rsr %1, 208\n" | |
36 | : "=r"(id0), "=r"(id1)); | |
37 | ||
38 | sprintf(buf, "CPU: Xtensa %s (id: %08x:%08x) at %s MHz\n", | |
39 | XCHAL_CORE_ID, id0, id1, strmhz(mhz, gd->cpu_clk)); | |
40 | puts(buf); | |
41 | return 0; | |
42 | } | |
43 | #endif | |
44 | ||
45 | int arch_cpu_init(void) | |
46 | { | |
47 | gd->ram_size = CONFIG_SYS_SDRAM_SIZE; | |
48 | return 0; | |
49 | } | |
f1683aa7 SG |
50 | |
51 | int dram_init(void) | |
52 | { | |
53 | return 0; | |
54 | } |