1 // SPDX-License-Identifier: GPL-2.0-or-later 2 /* 3 * Copyright (c) 2008 Emcraft Systems 4 * Sergei Poselenov <sposelenov@emcraft.com> 5 * 6 * Based on MPC8560 ADS and arch/ppc tqm85xx ports 7 * 8 * Maintained by Kumar Gala (see MAINTAINERS for contact information) 9 * 10 * Copyright 2008 Freescale Semiconductor Inc. 11 * 12 * Copyright (c) 2005-2006 DENX Software Engineering 13 * Stefan Roese <sr@denx.de> 14 * 15 * Based on original work by 16 * Kumar Gala <kumar.gala@freescale.com> 17 * Copyright 2004 Freescale Semiconductor Inc. 18 */ 19 20 #include <linux/stddef.h> 21 #include <linux/kernel.h> 22 #include <linux/pci.h> 23 #include <linux/kdev_t.h> 24 #include <linux/delay.h> 25 #include <linux/seq_file.h> 26 #include <linux/of_platform.h> 27 28 #include <asm/time.h> 29 #include <asm/machdep.h> 30 #include <asm/pci-bridge.h> 31 #include <asm/mpic.h> 32 #include <mm/mmu_decl.h> 33 #include <asm/udbg.h> 34 35 #include <sysdev/fsl_soc.h> 36 #include <sysdev/fsl_pci.h> 37 38 #include "mpc85xx.h" 39 #include "socrates_fpga_pic.h" 40 41 static void __init socrates_pic_init(void) 42 { 43 struct device_node *np; 44 45 struct mpic *mpic = mpic_alloc(NULL, 0, MPIC_BIG_ENDIAN, 46 0, 256, " OpenPIC "); 47 BUG_ON(mpic == NULL); 48 mpic_init(mpic); 49 50 np = of_find_compatible_node(NULL, NULL, "abb,socrates-fpga-pic"); 51 if (!np) { 52 printk(KERN_ERR "Could not find socrates-fpga-pic node\n"); 53 return; 54 } 55 socrates_fpga_pic_init(np); 56 of_node_put(np); 57 } 58 59 /* 60 * Setup the architecture 61 */ 62 static void __init socrates_setup_arch(void) 63 { 64 if (ppc_md.progress) 65 ppc_md.progress("socrates_setup_arch()", 0); 66 67 fsl_pci_assign_primary(); 68 } 69 70 machine_arch_initcall(socrates, mpc85xx_common_publish_devices); 71 72 /* 73 * Called very early, device-tree isn't unflattened 74 */ 75 static int __init socrates_probe(void) 76 { 77 if (of_machine_is_compatible("abb,socrates")) 78 return 1; 79 80 return 0; 81 } 82 83 define_machine(socrates) { 84 .name = "Socrates", 85 .probe = socrates_probe, 86 .setup_arch = socrates_setup_arch, 87 .init_IRQ = socrates_pic_init, 88 .get_irq = mpic_get_irq, 89 .calibrate_decr = generic_calibrate_decr, 90 .progress = udbg_progress, 91 }; 92