1 /* 2 * Copyright 2014 Freescale Semiconductor 3 * 4 * SPDX-License-Identifier: GPL-2.0+ 5 */ 6 7 #include <common.h> 8 #include <asm/io.h> 9 #include <fsl_csu.h> 10 #include <asm/arch/ns_access.h> 11 #include <asm/arch/fsl_serdes.h> 12 13 void set_devices_ns_access(struct csu_ns_dev *ns_dev, u16 val) 14 { 15 u32 *base = (u32 *)CONFIG_SYS_FSL_CSU_ADDR; 16 u32 *reg; 17 uint32_t tmp; 18 19 reg = base + ns_dev->ind / 2; 20 tmp = in_be32(reg); 21 if (ns_dev->ind % 2 == 0) { 22 tmp &= 0x0000ffff; 23 tmp |= val << 16; 24 } else { 25 tmp &= 0xffff0000; 26 tmp |= val; 27 } 28 29 out_be32(reg, tmp); 30 } 31 32 static void enable_devices_ns_access(struct csu_ns_dev *ns_dev, uint32_t num) 33 { 34 int i; 35 36 for (i = 0; i < num; i++) 37 set_devices_ns_access(ns_dev + i, ns_dev[i].val); 38 } 39 40 void enable_layerscape_ns_access(void) 41 { 42 #ifdef CONFIG_ARM64 43 if (current_el() == 3) 44 #endif 45 enable_devices_ns_access(ns_dev, ARRAY_SIZE(ns_dev)); 46 } 47 48 void set_pcie_ns_access(int pcie, u16 val) 49 { 50 switch (pcie) { 51 #ifdef CONFIG_PCIE1 52 case PCIE1: 53 set_devices_ns_access(&ns_dev[CSU_CSLX_PCIE1], val); 54 set_devices_ns_access(&ns_dev[CSU_CSLX_PCIE1_IO], val); 55 return; 56 #endif 57 #ifdef CONFIG_PCIE2 58 case PCIE2: 59 set_devices_ns_access(&ns_dev[CSU_CSLX_PCIE2], val); 60 set_devices_ns_access(&ns_dev[CSU_CSLX_PCIE2_IO], val); 61 return; 62 #endif 63 #ifdef CONFIG_PCIE3 64 case PCIE3: 65 set_devices_ns_access(&ns_dev[CSU_CSLX_PCIE3], val); 66 set_devices_ns_access(&ns_dev[CSU_CSLX_PCIE3_IO], val); 67 return; 68 #endif 69 default: 70 debug("The PCIE%d doesn't exist!\n", pcie); 71 return; 72 } 73 } 74