/* * Copyright (C) 2012 Michal Simek * Copyright (C) 2012 Xilinx, Inc. All rights reserved. * * SPDX-License-Identifier: GPL-2.0+ */ #include #include #include #include void lowlevel_init(void) { zynq_slcr_unlock(); /* remap DDR to zero, FILTERSTART */ writel(0, &scu_base->filter_start); /* Device config APB, unlock the PCAP */ writel(0x757BDF0D, &devcfg_base->unlock); writel(0xFFFFFFFF, &devcfg_base->rom_shadow); /* OCM_CFG, Mask out the ROM, map ram into upper addresses */ writel(0x1F, &slcr_base->ocm_cfg); /* FPGA_RST_CTRL, clear resets on AXI fabric ports */ writel(0x0, &slcr_base->fpga_rst_ctrl); /* TZ_DDR_RAM, Set DDR trust zone non-secure */ writel(0xFFFFFFFF, &slcr_base->trust_zone); /* Set urgent bits with register */ writel(0x0, &slcr_base->ddr_urgent_sel); /* Urgent write, ports S2/S3 */ writel(0xC, &slcr_base->ddr_urgent); zynq_slcr_lock(); } void reset_cpu(ulong addr) { zynq_slcr_cpu_reset(); while (1) ; }