1 /* 2 * Copyright (c) 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 <bl_common.h> 32 #include <gicv2.h> 33 #include <platform_def.h> 34 #include <utils.h> 35 36 /****************************************************************************** 37 * The following functions are defined as weak to allow a platform to override 38 * the way the GICv2 driver is initialised and used. 39 *****************************************************************************/ 40 #pragma weak plat_rockchip_gic_driver_init 41 #pragma weak plat_rockchip_gic_init 42 #pragma weak plat_rockchip_gic_cpuif_enable 43 #pragma weak plat_rockchip_gic_cpuif_disable 44 #pragma weak plat_rockchip_gic_pcpu_init 45 46 /****************************************************************************** 47 * On a GICv2 system, the Group 1 secure interrupts are treated as Group 0 48 * interrupts. 49 *****************************************************************************/ 50 const unsigned int g0_interrupt_array[] = { 51 PLAT_RK_G1S_IRQS, 52 }; 53 54 /* 55 * Ideally `rockchip_gic_data` structure definition should be a `const` but it 56 * is kept as modifiable for overwriting with different GICD and GICC base when 57 * running on FVP with VE memory map. 58 */ 59 gicv2_driver_data_t rockchip_gic_data = { 60 .gicd_base = PLAT_RK_GICD_BASE, 61 .gicc_base = PLAT_RK_GICC_BASE, 62 .g0_interrupt_num = ARRAY_SIZE(g0_interrupt_array), 63 .g0_interrupt_array = g0_interrupt_array, 64 }; 65 66 /****************************************************************************** 67 * RockChip common helper to initialize the GICv2 only driver. 68 *****************************************************************************/ 69 void plat_rockchip_gic_driver_init(void) 70 { 71 gicv2_driver_init(&rockchip_gic_data); 72 } 73 74 void plat_rockchip_gic_init(void) 75 { 76 gicv2_distif_init(); 77 gicv2_pcpu_distif_init(); 78 gicv2_cpuif_enable(); 79 } 80 81 /****************************************************************************** 82 * RockChip common helper to enable the GICv2 CPU interface 83 *****************************************************************************/ 84 void plat_rockchip_gic_cpuif_enable(void) 85 { 86 gicv2_cpuif_enable(); 87 } 88 89 /****************************************************************************** 90 * RockChip common helper to disable the GICv2 CPU interface 91 *****************************************************************************/ 92 void plat_rockchip_gic_cpuif_disable(void) 93 { 94 gicv2_cpuif_disable(); 95 } 96 97 /****************************************************************************** 98 * RockChip common helper to initialize the per cpu distributor interface 99 * in GICv2 100 *****************************************************************************/ 101 void plat_rockchip_gic_pcpu_init(void) 102 { 103 gicv2_pcpu_distif_init(); 104 } 105