diff options
Diffstat (limited to 'arch/arm/cpu/armv7/omap5/sec-fxns.c')
-rw-r--r-- | arch/arm/cpu/armv7/omap5/sec-fxns.c | 126 |
1 files changed, 0 insertions, 126 deletions
diff --git a/arch/arm/cpu/armv7/omap5/sec-fxns.c b/arch/arm/cpu/armv7/omap5/sec-fxns.c deleted file mode 100644 index 33d4ea4..0000000 --- a/arch/arm/cpu/armv7/omap5/sec-fxns.c +++ /dev/null @@ -1,126 +0,0 @@ -/* - * - * Security related functions for OMAP5 class devices - * - * (C) Copyright 2016 - * Texas Instruments, <www.ti.com> - * - * Daniel Allred <d-allred@ti.com> - * Harinarayan Bhatta <harinarayan@ti.com> - * - * SPDX-License-Identifier: GPL-2.0+ - */ - -#include <common.h> -#include <stdarg.h> - -#include <asm/arch/sys_proto.h> -#include <asm/omap_common.h> -#include <asm/omap_sec_common.h> -#include <asm/spl.h> -#include <spl.h> - -/* Index for signature PPA-based TI HAL APIs */ -#define PPA_HAL_SERVICES_START_INDEX (0x200) -#define PPA_SERV_HAL_SETUP_SEC_RESVD_REGION (PPA_HAL_SERVICES_START_INDEX + 25) -#define PPA_SERV_HAL_SETUP_EMIF_FW_REGION (PPA_HAL_SERVICES_START_INDEX + 26) -#define PPA_SERV_HAL_LOCK_EMIF_FW (PPA_HAL_SERVICES_START_INDEX + 27) - -static u32 get_sec_mem_start(void) -{ - u32 sec_mem_start = CONFIG_TI_SECURE_EMIF_REGION_START; - u32 sec_mem_size = CONFIG_TI_SECURE_EMIF_TOTAL_REGION_SIZE; - /* - * Total reserved region is all contiguous with protected - * region coming first, followed by the non-secure region. - * If 0x0 start address is given, we simply put the reserved - * region at the end of the external DRAM. - */ - if (sec_mem_start == 0) - sec_mem_start = - (CONFIG_SYS_SDRAM_BASE + - (omap_sdram_size() - sec_mem_size)); - return sec_mem_start; -} - -int secure_emif_firewall_setup(uint8_t region_num, uint32_t start_addr, - uint32_t size, uint32_t access_perm, - uint32_t initiator_perm) -{ - int result = 1; - - /* - * Call PPA HAL API to do any other general firewall - * configuration for regions 1-6 of the EMIF firewall. - */ - debug("%s: regionNum = %x, startAddr = %x, size = %x", __func__, - region_num, start_addr, size); - - result = secure_rom_call( - PPA_SERV_HAL_SETUP_EMIF_FW_REGION, 0, 0, 4, - (start_addr & 0xFFFFFFF0) | (region_num & 0x0F), - size, access_perm, initiator_perm); - - if (result != 0) { - puts("Secure EMIF Firewall Setup failed!\n"); - debug("Return Value = %x\n", result); - } - - return result; -} - -#if (CONFIG_TI_SECURE_EMIF_TOTAL_REGION_SIZE < \ - CONFIG_TI_SECURE_EMIF_PROTECTED_REGION_SIZE) -#error "TI Secure EMIF: Protected size cannot be larger than total size." -#endif -int secure_emif_reserve(void) -{ - int result = 1; - u32 sec_mem_start = get_sec_mem_start(); - u32 sec_prot_size = CONFIG_TI_SECURE_EMIF_PROTECTED_REGION_SIZE; - - /* If there is no protected region, there is no reservation to make */ - if (sec_prot_size == 0) - return 0; - - /* - * Call PPA HAL API to reserve a chunk of EMIF SDRAM - * for secure world use. This region should be carved out - * from use by any public code. EMIF firewall region 7 - * will be used to protect this block of memory. - */ - result = secure_rom_call( - PPA_SERV_HAL_SETUP_SEC_RESVD_REGION, - 0, 0, 2, sec_mem_start, sec_prot_size); - - if (result != 0) { - puts("SDRAM Firewall: Secure memory reservation failed!\n"); - debug("Return Value = %x\n", result); - } - - return result; -} - -int secure_emif_firewall_lock(void) -{ - int result = 1; - - /* - * Call PPA HAL API to lock the EMIF firewall configurations. - * After this API is called, none of the PPA HAL APIs for - * configuring the EMIF firewalls will be usable again (that - * is, calls to those APIs will return failure and have no - * effect). - */ - - result = secure_rom_call( - PPA_SERV_HAL_LOCK_EMIF_FW, - 0, 0, 0); - - if (result != 0) { - puts("Secure EMIF Firewall Lock failed!\n"); - debug("Return Value = %x\n", result); - } - - return result; -} |