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https://github.com/AsahiLinux/u-boot
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d024236e5a
We have a large number of places where while we historically referenced gd in the code we no longer do, as well as cases where the code added that line "just in case" during development and never dropped it. Signed-off-by: Tom Rini <trini@konsulko.com>
99 lines
2.1 KiB
C
99 lines
2.1 KiB
C
/*
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* (C) Copyright 2014-2016, Freescale Semiconductor, Inc.
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#include <common.h>
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#include <asm/io.h>
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#include <asm/system.h>
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#include <asm/armv8/mmu.h>
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#include <asm/io.h>
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#include <asm/arch/mc_me_regs.h>
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#include "cpu.h"
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u32 cpu_mask(void)
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{
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return readl(MC_ME_CS);
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}
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#ifndef CONFIG_SYS_DCACHE_OFF
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#define S32V234_IRAM_BASE 0x3e800000UL
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#define S32V234_IRAM_SIZE 0x800000UL
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#define S32V234_DRAM_BASE1 0x80000000UL
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#define S32V234_DRAM_SIZE1 0x40000000UL
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#define S32V234_DRAM_BASE2 0xC0000000UL
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#define S32V234_DRAM_SIZE2 0x20000000UL
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#define S32V234_PERIPH_BASE 0x40000000UL
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#define S32V234_PERIPH_SIZE 0x40000000UL
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static struct mm_region s32v234_mem_map[] = {
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{
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.virt = S32V234_IRAM_BASE,
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.phys = S32V234_IRAM_BASE,
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.size = S32V234_IRAM_SIZE,
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.attrs = PTE_BLOCK_MEMTYPE(MT_NORMAL) |
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PTE_BLOCK_OUTER_SHARE
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}, {
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.virt = S32V234_DRAM_BASE1,
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.phys = S32V234_DRAM_BASE1,
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.size = S32V234_DRAM_SIZE1,
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.attrs = PTE_BLOCK_MEMTYPE(MT_NORMAL) |
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PTE_BLOCK_OUTER_SHARE
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}, {
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.virt = S32V234_PERIPH_BASE,
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.phys = S32V234_PERIPH_BASE,
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.size = S32V234_PERIPH_SIZE,
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.attrs = PTE_BLOCK_MEMTYPE(MT_DEVICE_NGNRNE) |
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PTE_BLOCK_NON_SHARE
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/* TODO: Do we need these? */
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/* | PTE_BLOCK_PXN | PTE_BLOCK_UXN */
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}, {
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.virt = S32V234_DRAM_BASE2,
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.phys = S32V234_DRAM_BASE2,
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.size = S32V234_DRAM_SIZE2,
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.attrs = PTE_BLOCK_MEMTYPE(MT_NORMAL_NC) |
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PTE_BLOCK_OUTER_SHARE
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}, {
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/* List terminator */
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0,
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}
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};
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struct mm_region *mem_map = s32v234_mem_map;
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#endif
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/*
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* Return the number of cores on this SOC.
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*/
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int cpu_numcores(void)
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{
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int numcores;
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u32 mask;
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mask = cpu_mask();
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numcores = hweight32(cpu_mask());
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/* Verify if M4 is deactivated */
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if (mask & 0x1)
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numcores--;
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return numcores;
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}
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#if defined(CONFIG_ARCH_EARLY_INIT_R)
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int arch_early_init_r(void)
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{
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int rv;
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asm volatile ("dsb sy");
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rv = fsl_s32v234_wake_seconday_cores();
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if (rv)
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printf("Did not wake secondary cores\n");
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asm volatile ("sev");
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return 0;
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}
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#endif /* CONFIG_ARCH_EARLY_INIT_R */
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