diff options
Diffstat (limited to 'arch/arm/mach-omap2/omap5')
| -rw-r--r-- | arch/arm/mach-omap2/omap5/Kconfig | 26 | ||||
| -rw-r--r-- | arch/arm/mach-omap2/omap5/Makefile | 1 | ||||
| -rw-r--r-- | arch/arm/mach-omap2/omap5/sec-fxns.c | 234 |
3 files changed, 0 insertions, 261 deletions
diff --git a/arch/arm/mach-omap2/omap5/Kconfig b/arch/arm/mach-omap2/omap5/Kconfig index 08f45bc868..30a9ff9c7b 100644 --- a/arch/arm/mach-omap2/omap5/Kconfig +++ b/arch/arm/mach-omap2/omap5/Kconfig @@ -39,32 +39,6 @@ endchoice config SYS_SOC default "omap5" -config TI_SECURE_EMIF_REGION_START - hex "Reserved EMIF region start address" - depends on TI_SECURE_DEVICE - default 0x0 - help - Reserved EMIF region start address. Set to "0" to auto-select - to be at the end of the external memory region. - -config TI_SECURE_EMIF_TOTAL_REGION_SIZE - hex "Reserved EMIF region size" - depends on TI_SECURE_DEVICE - default 0x0 - help - Total reserved EMIF region size. Default is 0, which means no reserved EMIF - region on secure devices. - -config TI_SECURE_EMIF_PROTECTED_REGION_SIZE - hex "Size of protected region within reserved EMIF region" - depends on TI_SECURE_DEVICE - default 0x0 - help - This config option is used to specify the size of the portion of the total - reserved EMIF region set aside for secure OS needs that will be protected - using hardware memory firewalls. This value must be smaller than the - TI_SECURE_EMIF_TOTAL_REGION_SIZE value. - config OMAP_PLATFORM_RESET_TIME_MAX_USEC int "Something" range 0 31219 diff --git a/arch/arm/mach-omap2/omap5/Makefile b/arch/arm/mach-omap2/omap5/Makefile index af17a3deab..a6a5d17ff6 100644 --- a/arch/arm/mach-omap2/omap5/Makefile +++ b/arch/arm/mach-omap2/omap5/Makefile @@ -14,5 +14,4 @@ obj-y += hw_data.o obj-y += abb.o obj-y += fdt.o obj-$(CONFIG_IODELAY_RECALIBRATION) += dra7xx_iodelay.o -obj-$(CONFIG_TI_SECURE_DEVICE) += sec-fxns.o obj-$(CONFIG_DRA7XX) += sec_entry_cpu1.o diff --git a/arch/arm/mach-omap2/omap5/sec-fxns.c b/arch/arm/mach-omap2/omap5/sec-fxns.c deleted file mode 100644 index 7fab57592e..0000000000 --- a/arch/arm/mach-omap2/omap5/sec-fxns.c +++ /dev/null @@ -1,234 +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> -#include <asm/cache.h> -#include <mapmem.h> -#include <tee/optee.h> - -/* Index for signature PPA-based TI HAL APIs */ -#define PPA_HAL_SERVICES_START_INDEX (0x200) -#define PPA_SERV_HAL_TEE_LOAD_MASTER (PPA_HAL_SERVICES_START_INDEX + 23) -#define PPA_SERV_HAL_TEE_LOAD_SLAVE (PPA_HAL_SERVICES_START_INDEX + 24) -#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) - -int tee_loaded = 0; - -/* Argument for PPA_SERV_HAL_TEE_LOAD_MASTER */ -struct ppa_tee_load_info { - u32 tee_sec_mem_start; /* Physical start address reserved for TEE */ - u32 tee_sec_mem_size; /* Size of the memory reserved for TEE */ - u32 tee_cert_start; /* Address where signed TEE binary is loaded */ - u32 tee_cert_size; /* Size of TEE certificate (signed binary) */ - u32 tee_jump_addr; /* Address to jump to start TEE execution */ - u32 tee_arg0; /* argument to TEE jump function, in r0 */ -}; - -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; -} - -static struct ppa_tee_load_info tee_info __aligned(ARCH_DMA_MINALIGN); - -int secure_tee_install(u32 addr) -{ - struct optee_header *hdr; - void *loadptr; - u32 tee_file_size; - u32 sec_mem_start = get_sec_mem_start(); - const u32 size = CONFIG_TI_SECURE_EMIF_PROTECTED_REGION_SIZE; - u32 *smc_cpu1_params; - u32 ret; - - /* If there is no protected region, there is no place to put the TEE */ - if (size == 0) { - printf("Error loading TEE, no protected memory region available\n"); - return -ENOBUFS; - } - - hdr = (struct optee_header *)map_sysmem(addr, sizeof(struct optee_header)); - /* 280 bytes = size of signature */ - tee_file_size = hdr->init_size + hdr->paged_size + - sizeof(struct optee_header) + 280; - - if ((hdr->magic != OPTEE_MAGIC) || - (hdr->version != OPTEE_VERSION) || - (hdr->init_load_addr_hi != 0) || - (hdr->init_load_addr_lo < (sec_mem_start + sizeof(struct optee_header))) || - (tee_file_size > size) || - ((hdr->init_load_addr_lo + tee_file_size - 1) > - (sec_mem_start + size - 1))) { - printf("Error in TEE header. Check load address and sizes\n"); - unmap_sysmem(hdr); - return CMD_RET_FAILURE; - } - - tee_info.tee_sec_mem_start = sec_mem_start; - tee_info.tee_sec_mem_size = size; - tee_info.tee_jump_addr = hdr->init_load_addr_lo; - tee_info.tee_cert_start = addr; - tee_info.tee_cert_size = tee_file_size; - tee_info.tee_arg0 = hdr->init_size + tee_info.tee_jump_addr; - unmap_sysmem(hdr); - loadptr = map_sysmem(addr, tee_file_size); - - debug("tee_info.tee_sec_mem_start= %08X\n", tee_info.tee_sec_mem_start); - debug("tee_info.tee_sec_mem_size = %08X\n", tee_info.tee_sec_mem_size); - debug("tee_info.tee_jump_addr = %08X\n", tee_info.tee_jump_addr); - debug("tee_info.tee_cert_start = %08X\n", tee_info.tee_cert_start); - debug("tee_info.tee_cert_size = %08X\n", tee_info.tee_cert_size); - debug("tee_info.tee_arg0 = %08X\n", tee_info.tee_arg0); - debug("tee_file_size = %d\n", tee_file_size); - -#if !defined(CONFIG_SYS_DCACHE_OFF) - flush_dcache_range( - rounddown((u32)loadptr, ARCH_DMA_MINALIGN), - roundup((u32)loadptr + tee_file_size, ARCH_DMA_MINALIGN)); - - flush_dcache_range((u32)&tee_info, (u32)&tee_info + - roundup(sizeof(tee_info), ARCH_DMA_MINALIGN)); -#endif - unmap_sysmem(loadptr); - - ret = secure_rom_call(PPA_SERV_HAL_TEE_LOAD_MASTER, 0, 0, 1, &tee_info); - if (ret) { - printf("TEE_LOAD_MASTER Failed\n"); - return ret; - } - printf("TEE_LOAD_MASTER Done\n"); - - if (!is_dra72x()) { - /* Reuse the tee_info buffer for SMC params */ - smc_cpu1_params = (u32 *)&tee_info; - smc_cpu1_params[0] = 0; -#if !defined(CONFIG_SYS_DCACHE_OFF) - flush_dcache_range((u32)smc_cpu1_params, (u32)smc_cpu1_params + - roundup(sizeof(u32), ARCH_DMA_MINALIGN)); -#endif - ret = omap_smc_sec_cpu1(PPA_SERV_HAL_TEE_LOAD_SLAVE, 0, 0, - smc_cpu1_params); - if (ret) { - printf("TEE_LOAD_SLAVE Failed\n"); - return ret; - } - printf("TEE_LOAD_SLAVE Done\n"); - } - - tee_loaded = 1; - - return 0; -} |