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