1 /* 2 * Copyright 2008 Extreme Engineering Solutions, Inc. 3 * Copyright 2007-2008 Freescale Semiconductor, Inc. 4 * 5 * SPDX-License-Identifier: GPL-2.0+ 6 */ 7 8 #include <common.h> 9 #include <pci.h> 10 #include <asm/fsl_pci.h> 11 #include <asm/fsl_serdes.h> 12 #include <asm/io.h> 13 #include <linux/compiler.h> 14 #include <libfdt.h> 15 #include <fdt_support.h> 16 17 18 #ifdef CONFIG_PCI1 19 static struct pci_controller pci1_hose; 20 #endif 21 22 void pci_init_board(void) 23 { 24 int first_free_busno = 0; 25 26 #ifdef CONFIG_PCI1 27 int pcie_ep; 28 struct fsl_pci_info pci_info; 29 volatile ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR); 30 u32 devdisr = in_be32(&gur->devdisr); 31 uint pci_spd_norm = in_be32(&gur->pordevsr) & MPC85xx_PORDEVSR_PCI1_SPD; 32 uint pci_32 = in_be32(&gur->pordevsr) & MPC85xx_PORDEVSR_PCI1_PCI32; 33 uint pci_arb = in_be32(&gur->pordevsr) & MPC85xx_PORDEVSR_PCI1_ARB; 34 uint pcix = in_be32(&gur->pordevsr) & MPC85xx_PORDEVSR_PCI1; 35 uint freq = CONFIG_SYS_CLK_FREQ / 1000 / 1000; 36 37 if (!(devdisr & MPC85xx_DEVDISR_PCI1)) { 38 SET_STD_PCI_INFO(pci_info, 1); 39 set_next_law(pci_info.mem_phys, 40 law_size_bits(pci_info.mem_size), pci_info.law); 41 set_next_law(pci_info.io_phys, 42 law_size_bits(pci_info.io_size), pci_info.law); 43 44 pcie_ep = fsl_setup_hose(&pci1_hose, pci_info.regs); 45 printf("PCI1: %d bit %s, %s %d MHz, %s, %s\n", 46 pci_32 ? 32 : 64, 47 pcix ? "PCIX" : "PCI", 48 pci_spd_norm ? ">=" : "<=", 49 pcix ? freq * 2 : freq, 50 pcie_ep ? "agent" : "host", 51 pci_arb ? "arbiter" : "external-arbiter"); 52 53 first_free_busno = fsl_pci_init_port(&pci_info, 54 &pci1_hose, first_free_busno); 55 } else { 56 printf("PCI1: disabled\n"); 57 } 58 #elif defined CONFIG_ARCH_MPC8548 59 volatile ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR); 60 /* PCI1 not present on MPC8572 */ 61 setbits_be32(&gur->devdisr, MPC85xx_DEVDISR_PCI1); 62 #endif 63 64 fsl_pcie_init_board(first_free_busno); 65 } 66 67 #if defined(CONFIG_OF_BOARD_SETUP) 68 void ft_board_pci_setup(void *blob, bd_t *bd) 69 { 70 FT_FSL_PCI_SETUP; 71 } 72 #endif /* CONFIG_OF_BOARD_SETUP */ 73