1 /* 2 * Copyright (c) 2018, ARM Limited and Contributors. All rights reserved. 3 * 4 * SPDX-License-Identifier: BSD-3-Clause 5 */ 6 7 #include <common/debug.h> 8 #include <drivers/generic_delay_timer.h> 9 #include <lib/mmio.h> 10 #include <lib/xlat_tables/xlat_tables.h> 11 #include <plat/common/platform.h> 12 13 #include "../versal_def.h" 14 #include "../versal_private.h" 15 16 /* 17 * Table of regions to map using the MMU. 18 * This doesn't include TZRAM as the 'mem_layout' argument passed to 19 * configure_mmu_elx() will give the available subset of that, 20 */ 21 const mmap_region_t plat_versal_mmap[] = { 22 MAP_REGION_FLAT(DEVICE0_BASE, DEVICE0_SIZE, MT_DEVICE | MT_RW | MT_SECURE), 23 MAP_REGION_FLAT(DEVICE1_BASE, DEVICE1_SIZE, MT_DEVICE | MT_RW | MT_SECURE), 24 MAP_REGION_FLAT(CRF_BASE, CRF_SIZE, MT_DEVICE | MT_RW | MT_SECURE), 25 { 0 } 26 }; 27 28 const mmap_region_t *plat_versal_get_mmap(void) 29 { 30 return plat_versal_mmap; 31 } 32 33 static void versal_print_platform_name(void) 34 { 35 NOTICE("ATF running on Xilinx %s\n", PLATFORM_NAME); 36 } 37 38 void versal_config_setup(void) 39 { 40 uint32_t val; 41 42 versal_print_platform_name(); 43 44 mmio_write_32(VERSAL_CRL_IOU_SWITCH_CTRL, 45 VERSAL_IOU_SWITCH_CTRL_CLKACT_BIT | 46 (0x20 << VERSAL_IOU_SWITCH_CTRL_DIVISOR0_SHIFT)); 47 48 /* Global timer init - Program time stamp reference clk */ 49 val = mmio_read_32(VERSAL_CRL_TIMESTAMP_REF_CTRL); 50 val |= VERSAL_CRL_APB_TIMESTAMP_REF_CTRL_CLKACT_BIT; 51 mmio_write_32(VERSAL_CRL_TIMESTAMP_REF_CTRL, val); 52 53 /* Clear reset of timestamp reg */ 54 mmio_write_32(VERSAL_CRL_RST_TIMESTAMP_OFFSET, 0x0); 55 56 /* Program freq register in System counter and enable system counter. */ 57 mmio_write_32(VERSAL_IOU_SCNTRS_BASE_FREQ, VERSAL_CPU_CLOCK); 58 mmio_write_32(VERSAL_IOU_SCNTRS_COUNTER_CONTROL_REG, 59 VERSAL_IOU_SCNTRS_CONTROL_EN); 60 61 generic_delay_timer_init(); 62 } 63 64 unsigned int plat_get_syscnt_freq2(void) 65 { 66 return VERSAL_CPU_CLOCK; 67 } 68 69 uintptr_t plat_get_ns_image_entrypoint(void) 70 { 71 #ifdef PRELOADED_BL33_BASE 72 return PRELOADED_BL33_BASE; 73 #else 74 return PLAT_VERSAL_NS_IMAGE_OFFSET; 75 #endif 76 } 77