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// SPDX-License-Identifier: GPL-2.0+
/*
* (C) Copyright 2014-2016, Freescale Semiconductor, Inc.
*/
#include <common.h>
#include <cpu_func.h>
#include <init.h>
#include <asm/cache.h>
#include <asm/io.h>
#include <asm/system.h>
#include <asm/armv8/mmu.h>
#include <asm/io.h>
#include <asm/arch/mc_me_regs.h>
#include <linux/bitops.h>
#include "cpu.h"
u32 cpu_mask(void)
{
return readl(MC_ME_CS);
}
#if !CONFIG_IS_ENABLED(SYS_DCACHE_OFF)
#define S32V234_IRAM_BASE 0x3e800000UL
#define S32V234_IRAM_SIZE 0x800000UL
#define S32V234_DRAM_BASE1 0x80000000UL
#define S32V234_DRAM_SIZE1 0x40000000UL
#define S32V234_DRAM_BASE2 0xC0000000UL
#define S32V234_DRAM_SIZE2 0x20000000UL
#define S32V234_PERIPH_BASE 0x40000000UL
#define S32V234_PERIPH_SIZE 0x40000000UL
static struct mm_region s32v234_mem_map[] = {
{
.virt = S32V234_IRAM_BASE,
.phys = S32V234_IRAM_BASE,
.size = S32V234_IRAM_SIZE,
.attrs = PTE_BLOCK_MEMTYPE(MT_NORMAL) |
PTE_BLOCK_OUTER_SHARE
}, {
.virt = S32V234_DRAM_BASE1,
.phys = S32V234_DRAM_BASE1,
.size = S32V234_DRAM_SIZE1,
.attrs = PTE_BLOCK_MEMTYPE(MT_NORMAL) |
PTE_BLOCK_OUTER_SHARE
}, {
.virt = S32V234_PERIPH_BASE,
.phys = S32V234_PERIPH_BASE,
.size = S32V234_PERIPH_SIZE,
.attrs = PTE_BLOCK_MEMTYPE(MT_DEVICE_NGNRNE) |
PTE_BLOCK_NON_SHARE
/* TODO: Do we need these? */
/* | PTE_BLOCK_PXN | PTE_BLOCK_UXN */
}, {
.virt = S32V234_DRAM_BASE2,
.phys = S32V234_DRAM_BASE2,
.size = S32V234_DRAM_SIZE2,
.attrs = PTE_BLOCK_MEMTYPE(MT_NORMAL_NC) |
PTE_BLOCK_OUTER_SHARE
}, {
/* List terminator */
0,
}
};
struct mm_region *mem_map = s32v234_mem_map;
#endif
/*
* Return the number of cores on this SOC.
*/
int cpu_numcores(void)
{
int numcores;
u32 mask;
mask = cpu_mask();
numcores = hweight32(cpu_mask());
/* Verify if M4 is deactivated */
if (mask & 0x1)
numcores--;
return numcores;
}
#if defined(CONFIG_ARCH_EARLY_INIT_R)
int arch_early_init_r(void)
{
int rv;
asm volatile ("dsb sy");
rv = fsl_s32v234_wake_seconday_cores();
if (rv)
printf("Did not wake secondary cores\n");
asm volatile ("sev");
return 0;
}
#endif /* CONFIG_ARCH_EARLY_INIT_R */
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