1 /* 2 * Copyright (c) 2013-2016, ARM Limited and Contributors. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions are met: 6 * 7 * Redistributions of source code must retain the above copyright notice, this 8 * list of conditions and the following disclaimer. 9 * 10 * Redistributions in binary form must reproduce the above copyright notice, 11 * this list of conditions and the following disclaimer in the documentation 12 * and/or other materials provided with the distribution. 13 * 14 * Neither the name of ARM nor the names of its contributors may be used 15 * to endorse or promote products derived from this software without specific 16 * prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 19 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 21 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE 22 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 23 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 24 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 25 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 26 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 27 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 28 * POSSIBILITY OF SUCH DAMAGE. 29 */ 30 31 #include <arch_helpers.h> 32 #include <arm_gic.h> 33 #include <bl_common.h> 34 #include <cci.h> 35 #include <debug.h> 36 #include <string.h> 37 #include <xlat_tables.h> 38 #include <platform_def.h> 39 #include <plat_private.h> 40 41 #ifdef PLAT_RK_CCI_BASE 42 static const int cci_map[] = { 43 PLAT_RK_CCI_CLUSTER0_SL_IFACE_IX, 44 PLAT_RK_CCI_CLUSTER1_SL_IFACE_IX 45 }; 46 #endif 47 48 /****************************************************************************** 49 * Macro generating the code for the function setting up the pagetables as per 50 * the platform memory map & initialize the mmu, for the given exception level 51 ******************************************************************************/ 52 #define DEFINE_CONFIGURE_MMU_EL(_el) \ 53 void plat_configure_mmu_el ## _el(unsigned long total_base, \ 54 unsigned long total_size, \ 55 unsigned long ro_start, \ 56 unsigned long ro_limit, \ 57 unsigned long coh_start, \ 58 unsigned long coh_limit) \ 59 { \ 60 mmap_add_region(total_base, total_base, \ 61 total_size, \ 62 MT_MEMORY | MT_RW | MT_SECURE); \ 63 mmap_add_region(ro_start, ro_start, \ 64 ro_limit - ro_start, \ 65 MT_MEMORY | MT_RO | MT_SECURE); \ 66 mmap_add_region(coh_start, coh_start, \ 67 coh_limit - coh_start, \ 68 MT_DEVICE | MT_RW | MT_SECURE); \ 69 mmap_add(plat_rk_mmap); \ 70 init_xlat_tables(); \ 71 \ 72 enable_mmu_el ## _el(0); \ 73 } 74 75 /* Define EL3 variants of the function initialising the MMU */ 76 DEFINE_CONFIGURE_MMU_EL(3) 77 78 unsigned int plat_get_syscnt_freq2(void) 79 { 80 return SYS_COUNTER_FREQ_IN_TICKS; 81 } 82 83 void plat_cci_init(void) 84 { 85 #ifdef PLAT_RK_CCI_BASE 86 /* Initialize CCI driver */ 87 cci_init(PLAT_RK_CCI_BASE, cci_map, ARRAY_SIZE(cci_map)); 88 #endif 89 } 90 91 void plat_cci_enable(void) 92 { 93 /* 94 * Enable CCI coherency for this cluster. 95 * No need for locks as no other cpu is active at the moment. 96 */ 97 #ifdef PLAT_RK_CCI_BASE 98 cci_enable_snoop_dvm_reqs(MPIDR_AFFLVL1_VAL(read_mpidr())); 99 #endif 100 } 101 102 void plat_cci_disable(void) 103 { 104 #ifdef PLAT_RK_CCI_BASE 105 cci_disable_snoop_dvm_reqs(MPIDR_AFFLVL1_VAL(read_mpidr())); 106 #endif 107 } 108