diff options
Diffstat (limited to 'src/soc/imgtec/pistachio/bootblock.c')
-rw-r--r-- | src/soc/imgtec/pistachio/bootblock.c | 62 |
1 files changed, 0 insertions, 62 deletions
diff --git a/src/soc/imgtec/pistachio/bootblock.c b/src/soc/imgtec/pistachio/bootblock.c deleted file mode 100644 index ac4a74070c..0000000000 --- a/src/soc/imgtec/pistachio/bootblock.c +++ /dev/null @@ -1,62 +0,0 @@ -/* - * This file is part of the coreboot project. - * - * Copyright (C) 2014 Imagination Technologies - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation; version 2 of - * the License. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - */ - -#include <arch/cpu.h> -#include <arch/mmu.h> -#include <assert.h> -#include <stdint.h> -#include <symbols.h> - -static void bootblock_cpu_init(void) -{ - uint32_t cause; - - /* - * Make sure the count register is counting by clearing the "Disable - * Counter" bit, in case it is set. - */ - cause = read_c0_cause(); - if (cause & C0_CAUSE_DC) - write_c0_cause(cause & ~(C0_CAUSE_DC)); - - /* And make sure that it starts from zero. */ - write_c0_count(0); -} - -static void bootblock_mmu_init(void) -{ - uint32_t null_guard_size = 1 * MiB; - uint32_t dram_base, dram_size; - - write_c0_wired(0); - - dram_base = (uint32_t)_dram; - dram_size = CONFIG_DRAM_SIZE_MB * MiB; - - /* - * To be able to catch NULL pointer dereference attempts, lets not map - * memory close to zero. - */ - if (dram_base < null_guard_size) { - dram_base += null_guard_size; - dram_size -= null_guard_size; - } - assert(!identity_map((uint32_t)_sram, REGION_SIZE(sram), - C0_ENTRYLO_COHERENCY_WB)); - assert(!identity_map(dram_base, dram_size, C0_ENTRYLO_COHERENCY_WB)); - assert(!identity_map((uint32_t)_soc_registers, - REGION_SIZE(soc_registers), C0_ENTRYLO_COHERENCY_UC)); -} |