1 /* 2 * Based on MPC8560 ADS and arch/ppc stx_gp3 ports 3 * 4 * Maintained by Kumar Gala (see MAINTAINERS for contact information) 5 * 6 * Copyright 2008 Freescale Semiconductor Inc. 7 * 8 * Dan Malek <dan@embeddededge.com> 9 * Copyright 2004 Embedded Edge, LLC 10 * 11 * Copied from mpc8560_ads.c 12 * Copyright 2002, 2003 Motorola Inc. 13 * 14 * Ported to 2.6, Matt Porter <mporter@kernel.crashing.org> 15 * Copyright 2004-2005 MontaVista Software, Inc. 16 * 17 * This program is free software; you can redistribute it and/or modify it 18 * under the terms of the GNU General Public License as published by the 19 * Free Software Foundation; either version 2 of the License, or (at your 20 * option) any later version. 21 */ 22 23 #include <linux/stddef.h> 24 #include <linux/kernel.h> 25 #include <linux/pci.h> 26 #include <linux/kdev_t.h> 27 #include <linux/delay.h> 28 #include <linux/seq_file.h> 29 #include <linux/of_platform.h> 30 31 #include <asm/system.h> 32 #include <asm/time.h> 33 #include <asm/machdep.h> 34 #include <asm/pci-bridge.h> 35 #include <asm/mpic.h> 36 #include <asm/prom.h> 37 #include <mm/mmu_decl.h> 38 #include <asm/udbg.h> 39 40 #include <sysdev/fsl_soc.h> 41 #include <sysdev/fsl_pci.h> 42 43 #include "mpc85xx.h" 44 45 #ifdef CONFIG_CPM2 46 #include <asm/cpm2.h> 47 #endif /* CONFIG_CPM2 */ 48 49 static void __init stx_gp3_pic_init(void) 50 { 51 struct mpic *mpic = mpic_alloc(NULL, 0, 52 MPIC_WANTS_RESET | MPIC_BIG_ENDIAN, 53 0, 256, " OpenPIC "); 54 BUG_ON(mpic == NULL); 55 mpic_init(mpic); 56 57 mpc85xx_cpm2_pic_init(); 58 } 59 60 /* 61 * Setup the architecture 62 */ 63 static void __init stx_gp3_setup_arch(void) 64 { 65 #ifdef CONFIG_PCI 66 struct device_node *np; 67 #endif 68 69 if (ppc_md.progress) 70 ppc_md.progress("stx_gp3_setup_arch()", 0); 71 72 #ifdef CONFIG_CPM2 73 cpm2_reset(); 74 #endif 75 76 #ifdef CONFIG_PCI 77 for_each_compatible_node(np, "pci", "fsl,mpc8540-pci") 78 fsl_add_bridge(np, 1); 79 #endif 80 } 81 82 static void stx_gp3_show_cpuinfo(struct seq_file *m) 83 { 84 uint pvid, svid, phid1; 85 86 pvid = mfspr(SPRN_PVR); 87 svid = mfspr(SPRN_SVR); 88 89 seq_printf(m, "Vendor\t\t: RPC Electronics STx\n"); 90 seq_printf(m, "PVR\t\t: 0x%x\n", pvid); 91 seq_printf(m, "SVR\t\t: 0x%x\n", svid); 92 93 /* Display cpu Pll setting */ 94 phid1 = mfspr(SPRN_HID1); 95 seq_printf(m, "PLL setting\t: 0x%x\n", ((phid1 >> 24) & 0x3f)); 96 } 97 98 machine_device_initcall(stx_gp3, mpc85xx_common_publish_devices); 99 100 /* 101 * Called very early, device-tree isn't unflattened 102 */ 103 static int __init stx_gp3_probe(void) 104 { 105 unsigned long root = of_get_flat_dt_root(); 106 107 return of_flat_dt_is_compatible(root, "stx,gp3-8560"); 108 } 109 110 define_machine(stx_gp3) { 111 .name = "STX GP3", 112 .probe = stx_gp3_probe, 113 .setup_arch = stx_gp3_setup_arch, 114 .init_IRQ = stx_gp3_pic_init, 115 .show_cpuinfo = stx_gp3_show_cpuinfo, 116 .get_irq = mpic_get_irq, 117 .restart = fsl_rstcr_restart, 118 .calibrate_decr = generic_calibrate_decr, 119 .progress = udbg_progress, 120 }; 121