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