diff options
Diffstat (limited to 'plat/hikey/plat_security.c')
| -rw-r--r-- | plat/hikey/plat_security.c | 137 |
1 files changed, 0 insertions, 137 deletions
diff --git a/plat/hikey/plat_security.c b/plat/hikey/plat_security.c deleted file mode 100644 index dc439c7b..00000000 --- a/plat/hikey/plat_security.c +++ /dev/null @@ -1,137 +0,0 @@ -/* - * Copyright (c) 2015, Linaro Ltd and Contributors. All rights reserved. - * Copyright (c) 2015, Hisilicon Ltd and Contributors. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are met: - * - * Redistributions of source code must retain the above copyright notice, this - * list of conditions and the following disclaimer. - * - * Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * - * Neither the name of ARM nor the names of its contributors may be used - * to endorse or promote products derived from this software without specific - * prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" - * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE - * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR - * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF - * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) - * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGE. - */ - -#include <debug.h> -#include <stdint.h> -#include <strings.h> -#include <platform_def.h> - -#define PORTNUM_MAX 5 - -#define MDDRC_SECURITY_BASE 0xF7121000 - -struct int_en_reg { - unsigned in_en:1; - unsigned reserved:31; -}; - -struct rgn_map_reg { - unsigned rgn_base_addr:24; - unsigned rgn_size:6; - unsigned reserved:1; - unsigned rgn_en:1; -}; - -struct rgn_attr_reg { - unsigned sp:4; - unsigned security_inv:1; - unsigned reserved_0:3; - unsigned mid_en:1; - unsigned mid_inv:1; - unsigned reserved_1:6; - unsigned rgn_en:1; - unsigned subrgn_disable:16; -}; - -static volatile struct int_en_reg *get_int_en_reg(uint32_t base) -{ - uint64_t addr = base + 0x20; - return (struct int_en_reg *)addr; -} - -static volatile struct rgn_map_reg *get_rgn_map_reg(uint32_t base, int region, int port) -{ - uint64_t addr = base + 0x100 + 0x10 * region + 0x400 * port; - return (struct rgn_map_reg *)addr; -} - -static volatile struct rgn_attr_reg *get_rgn_attr_reg(uint32_t base, int region, - int port) -{ - uint64_t addr = base + 0x104 + 0x10 * region + 0x400 * port; - return (struct rgn_attr_reg *)addr; -} - -static int is_power_of_two(uint32_t x) -{ - return ((x != 0) && !(x & (x - 1))); -} - -/* - * Configure secure memory region - * region_size must be a power of 2 and at least 64KB - * region_base must be region_size aligned - */ -static void sec_protect(uint32_t region_base, uint32_t region_size, - int region) -{ - volatile struct int_en_reg *int_en_reg ; - volatile struct rgn_map_reg *rgn_map_reg; - volatile struct rgn_attr_reg *rgn_attr_reg; - uint32_t i = 0; - - if (region < 1 || region > 15) { - ERROR("Secure region number is invalid\n"); - } - if (!is_power_of_two(region_size) || region_size < 0x10000) { - ERROR("Secure region size is not a power of 2 >= 64KB\n"); - return; - } - if (region_base & (region_size - 1)) { - ERROR("Secure region address is not aligned to region size\n"); - return; - } - - INFO("BL2: TrustZone: protecting %u bytes of memory at 0x%x\n", region_size, - region_base); - - int_en_reg = get_int_en_reg(MDDRC_SECURITY_BASE); - int_en_reg->in_en = 0x1; - - for (i = 0; i < PORTNUM_MAX; i++) { - rgn_map_reg = get_rgn_map_reg(MDDRC_SECURITY_BASE, region, i); - rgn_attr_reg = get_rgn_attr_reg(MDDRC_SECURITY_BASE, region, i); - rgn_map_reg->rgn_base_addr = region_base >> 16; - rgn_attr_reg->subrgn_disable = 0x0; - rgn_attr_reg->sp = (i == 3) ? 0xC : 0x0; - rgn_map_reg->rgn_size = __builtin_ffs(region_size) - 2; - rgn_map_reg->rgn_en = 0x1; - } -} - -/******************************************************************************* - * Initialize the secure environment. - ******************************************************************************/ -void plat_security_setup(void) -{ - sec_protect(DRAM_SEC_BASE, DRAM_SEC_SIZE, 1); - sec_protect(DRAM_SDP_BASE, DRAM_SDP_SIZE, 2); -} |