// SPDX-License-Identifier: GPL-2.0+ | |
/* | |
* (C) Copyright 2008 - 2013 Tensilica Inc. | |
* (C) Copyright 2014 - 2016 Cadence Design Systems Inc. | |
*/ | |
/* | |
* CPU specific code | |
*/ | |
#include <common.h> | |
#include <command.h> | |
#include <init.h> | |
#include <vsprintf.h> | |
#include <linux/stringify.h> | |
#include <asm/global_data.h> | |
#include <asm/cache.h> | |
#include <asm/string.h> | |
#include <asm/misc.h> | |
DECLARE_GLOBAL_DATA_PTR; | |
gd_t *gd __section(".data"); | |
#if defined(CONFIG_DISPLAY_CPUINFO) | |
/* | |
* Print information about the CPU. | |
*/ | |
int print_cpuinfo(void) | |
{ | |
char buf[120], mhz[8]; | |
uint32_t id0, id1; | |
asm volatile ("rsr %0, 176\n" | |
"rsr %1, 208\n" | |
: "=r"(id0), "=r"(id1)); | |
sprintf(buf, "CPU: Xtensa %s (id: %08x:%08x) at %s MHz\n", | |
XCHAL_CORE_ID, id0, id1, strmhz(mhz, gd->cpu_clk)); | |
puts(buf); | |
return 0; | |
} | |
#endif | |
int arch_cpu_init(void) | |
{ | |
gd->ram_size = CFG_SYS_SDRAM_SIZE; | |
return 0; | |
} | |
int dram_init(void) | |
{ | |
return 0; | |
} |