1b4315306SDan Handley /* 2fd116b9fSRoberto Vargas * Copyright (c) 2015-2018, ARM Limited and Contributors. All rights reserved. 3b4315306SDan Handley * 482cb2c1aSdp-arm * SPDX-License-Identifier: BSD-3-Clause 5b4315306SDan Handley */ 6b4315306SDan Handley 7b4315306SDan Handley #include <board_css_def.h> 8b4315306SDan Handley #include <mmio.h> 9883852caSVikram Kanigiri #include <nic_400.h> 10b4315306SDan Handley #include <platform_def.h> 11fd116b9fSRoberto Vargas #include <soc_css.h> 12b4315306SDan Handley #include <soc_css_def.h> 13b4315306SDan Handley 14b4315306SDan Handley void soc_css_init_nic400(void) 15b4315306SDan Handley { 16b4315306SDan Handley /* 17b4315306SDan Handley * NIC-400 Access Control Initialization 18b4315306SDan Handley * 19b4315306SDan Handley * Define access privileges by setting each corresponding bit to: 20b4315306SDan Handley * 0 = Secure access only 21b4315306SDan Handley * 1 = Non-secure access allowed 22b4315306SDan Handley */ 23b4315306SDan Handley 24b4315306SDan Handley /* 25b4315306SDan Handley * Allow non-secure access to some SOC regions, excluding UART1, which 26*2431d00fSAlexei Fedorov * remains secure (unless CSS_NON_SECURE_UART is set). 27b4315306SDan Handley * Note: This is the NIC-400 device on the SOC 28b4315306SDan Handley */ 29b4315306SDan Handley mmio_write_32(SOC_CSS_NIC400_BASE + 30b4315306SDan Handley NIC400_ADDR_CTRL_SECURITY_REG(SOC_CSS_NIC400_USB_EHCI), ~0); 31b4315306SDan Handley mmio_write_32(SOC_CSS_NIC400_BASE + 32b4315306SDan Handley NIC400_ADDR_CTRL_SECURITY_REG(SOC_CSS_NIC400_TLX_MASTER), ~0); 33b4315306SDan Handley mmio_write_32(SOC_CSS_NIC400_BASE + 34b4315306SDan Handley NIC400_ADDR_CTRL_SECURITY_REG(SOC_CSS_NIC400_USB_OHCI), ~0); 35b4315306SDan Handley mmio_write_32(SOC_CSS_NIC400_BASE + 36b4315306SDan Handley NIC400_ADDR_CTRL_SECURITY_REG(SOC_CSS_NIC400_PL354_SMC), ~0); 37b4315306SDan Handley mmio_write_32(SOC_CSS_NIC400_BASE + 38b4315306SDan Handley NIC400_ADDR_CTRL_SECURITY_REG(SOC_CSS_NIC400_APB4_BRIDGE), ~0); 39*2431d00fSAlexei Fedorov #if CSS_NON_SECURE_UART 40*2431d00fSAlexei Fedorov /* Configure UART for non-secure access */ 41*2431d00fSAlexei Fedorov mmio_write_32(SOC_CSS_NIC400_BASE + 42*2431d00fSAlexei Fedorov NIC400_ADDR_CTRL_SECURITY_REG(SOC_CSS_NIC400_BOOTSEC_BRIDGE), ~0); 43*2431d00fSAlexei Fedorov #else 44b4315306SDan Handley mmio_write_32(SOC_CSS_NIC400_BASE + 45b4315306SDan Handley NIC400_ADDR_CTRL_SECURITY_REG(SOC_CSS_NIC400_BOOTSEC_BRIDGE), 46b4315306SDan Handley ~SOC_CSS_NIC400_BOOTSEC_BRIDGE_UART1); 47*2431d00fSAlexei Fedorov #endif /* CSS_NON_SECURE_UART */ 48b4315306SDan Handley 49b4315306SDan Handley } 50b4315306SDan Handley 51b4315306SDan Handley 52b4315306SDan Handley #define PCIE_SECURE_REG 0x3000 53b4315306SDan Handley /* Mask uses REG and MEM access bits */ 54b4315306SDan Handley #define PCIE_SEC_ACCESS_MASK ((1 << 0) | (1 << 1)) 55b4315306SDan Handley 56b4315306SDan Handley void soc_css_init_pcie(void) 57b4315306SDan Handley { 58b4315306SDan Handley #if !PLAT_juno 59b4315306SDan Handley /* 60b4315306SDan Handley * Do not initialize PCIe in emulator environment. 61b4315306SDan Handley * Platform ID register not supported on Juno 62b4315306SDan Handley */ 63b4315306SDan Handley if (BOARD_CSS_GET_PLAT_TYPE(BOARD_CSS_PLAT_ID_REG_ADDR) == 64b4315306SDan Handley BOARD_CSS_PLAT_TYPE_EMULATOR) 65b4315306SDan Handley return; 66b4315306SDan Handley #endif /* PLAT_juno */ 67b4315306SDan Handley 68b4315306SDan Handley /* 69b4315306SDan Handley * PCIE Root Complex Security settings to enable non-secure 70b4315306SDan Handley * access to config registers. 71b4315306SDan Handley */ 72b4315306SDan Handley mmio_write_32(SOC_CSS_PCIE_CONTROL_BASE + PCIE_SECURE_REG, 73b4315306SDan Handley PCIE_SEC_ACCESS_MASK); 74b4315306SDan Handley } 75