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 <asm/prom.h> 33 #include <mm/mmu_decl.h> 34 #include <asm/udbg.h> 35 36 #include <sysdev/fsl_soc.h> 37 #include <sysdev/fsl_pci.h> 38 39 #include "mpc85xx.h" 40 #include "socrates_fpga_pic.h" 41 42 static void __init socrates_pic_init(void) 43 { 44 struct device_node *np; 45 46 struct mpic *mpic = mpic_alloc(NULL, 0, MPIC_BIG_ENDIAN, 47 0, 256, " OpenPIC "); 48 BUG_ON(mpic == NULL); 49 mpic_init(mpic); 50 51 np = of_find_compatible_node(NULL, NULL, "abb,socrates-fpga-pic"); 52 if (!np) { 53 printk(KERN_ERR "Could not find socrates-fpga-pic node\n"); 54 return; 55 } 56 socrates_fpga_pic_init(np); 57 of_node_put(np); 58 } 59 60 /* 61 * Setup the architecture 62 */ 63 static void __init socrates_setup_arch(void) 64 { 65 if (ppc_md.progress) 66 ppc_md.progress("socrates_setup_arch()", 0); 67 68 fsl_pci_assign_primary(); 69 } 70 71 machine_arch_initcall(socrates, mpc85xx_common_publish_devices); 72 73 /* 74 * Called very early, device-tree isn't unflattened 75 */ 76 static int __init socrates_probe(void) 77 { 78 if (of_machine_is_compatible("abb,socrates")) 79 return 1; 80 81 return 0; 82 } 83 84 define_machine(socrates) { 85 .name = "Socrates", 86 .probe = socrates_probe, 87 .setup_arch = socrates_setup_arch, 88 .init_IRQ = socrates_pic_init, 89 .get_irq = mpic_get_irq, 90 .calibrate_decr = generic_calibrate_decr, 91 .progress = udbg_progress, 92 }; 93