1 // SPDX-License-Identifier: GPL-2.0-or-later 2 /* 3 * Setup code for SAMA5 4 * 5 * Copyright (C) 2013 Atmel, 6 * 2013 Ludovic Desroches <ludovic.desroches@atmel.com> 7 */ 8 9 #include <linux/of.h> 10 #include <linux/of_platform.h> 11 12 #include <asm/hardware/cache-l2x0.h> 13 #include <asm/mach/arch.h> 14 #include <asm/mach/map.h> 15 #include <asm/outercache.h> 16 #include <asm/system_misc.h> 17 18 #include "generic.h" 19 #include "sam_secure.h" 20 21 static void sama5_l2c310_write_sec(unsigned long val, unsigned reg) 22 { 23 /* OP-TEE configures the L2 cache and does not allow modifying it yet */ 24 } 25 26 static void __init sama5_secure_cache_init(void) 27 { 28 sam_secure_init(); 29 if (IS_ENABLED(CONFIG_OUTER_CACHE) && sam_linux_is_optee_available()) 30 outer_cache.write_sec = sama5_l2c310_write_sec; 31 } 32 33 static void __init sama5_dt_device_init(void) 34 { 35 of_platform_default_populate(NULL, NULL, NULL); 36 sama5_pm_init(); 37 } 38 39 static const char *const sama5_dt_board_compat[] __initconst = { 40 "atmel,sama5", 41 NULL 42 }; 43 44 DT_MACHINE_START(sama5_dt, "Atmel SAMA5") 45 /* Maintainer: Atmel */ 46 .init_machine = sama5_dt_device_init, 47 .dt_compat = sama5_dt_board_compat, 48 MACHINE_END 49 50 static const char *const sama5_alt_dt_board_compat[] __initconst = { 51 "atmel,sama5d4", 52 NULL 53 }; 54 55 DT_MACHINE_START(sama5_alt_dt, "Atmel SAMA5") 56 /* Maintainer: Atmel */ 57 .init_machine = sama5_dt_device_init, 58 .dt_compat = sama5_alt_dt_board_compat, 59 .l2c_aux_mask = ~0UL, 60 MACHINE_END 61 62 static void __init sama5d2_init(void) 63 { 64 of_platform_default_populate(NULL, NULL, NULL); 65 sama5d2_pm_init(); 66 } 67 68 static const char *const sama5d2_compat[] __initconst = { 69 "atmel,sama5d2", 70 NULL 71 }; 72 73 DT_MACHINE_START(sama5d2, "Atmel SAMA5") 74 /* Maintainer: Atmel */ 75 .init_machine = sama5d2_init, 76 .init_early = sama5_secure_cache_init, 77 .dt_compat = sama5d2_compat, 78 .l2c_aux_mask = ~0UL, 79 MACHINE_END 80