1 // SPDX-License-Identifier: GPL-2.0-or-later 2 /* 3 * Based on MPC8560 ADS and arch/ppc stx_gp3 ports 4 * 5 * Maintained by Kumar Gala (see MAINTAINERS for contact information) 6 * 7 * Copyright 2008 Freescale Semiconductor Inc. 8 * 9 * Dan Malek <dan@embeddededge.com> 10 * Copyright 2004 Embedded Edge, LLC 11 * 12 * Copied from mpc8560_ads.c 13 * Copyright 2002, 2003 Motorola Inc. 14 * 15 * Ported to 2.6, Matt Porter <mporter@kernel.crashing.org> 16 * Copyright 2004-2005 MontaVista Software, Inc. 17 */ 18 19 #include <linux/stddef.h> 20 #include <linux/kernel.h> 21 #include <linux/pci.h> 22 #include <linux/kdev_t.h> 23 #include <linux/delay.h> 24 #include <linux/seq_file.h> 25 #include <linux/of_platform.h> 26 27 #include <asm/time.h> 28 #include <asm/machdep.h> 29 #include <asm/pci-bridge.h> 30 #include <asm/mpic.h> 31 #include <asm/prom.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 40 #ifdef CONFIG_CPM2 41 #include <asm/cpm2.h> 42 #endif /* CONFIG_CPM2 */ 43 44 static void __init stx_gp3_pic_init(void) 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 mpc85xx_cpm2_pic_init(); 52 } 53 54 /* 55 * Setup the architecture 56 */ 57 static void __init stx_gp3_setup_arch(void) 58 { 59 if (ppc_md.progress) 60 ppc_md.progress("stx_gp3_setup_arch()", 0); 61 62 fsl_pci_assign_primary(); 63 64 #ifdef CONFIG_CPM2 65 cpm2_reset(); 66 #endif 67 } 68 69 static void stx_gp3_show_cpuinfo(struct seq_file *m) 70 { 71 uint pvid, svid, phid1; 72 73 pvid = mfspr(SPRN_PVR); 74 svid = mfspr(SPRN_SVR); 75 76 seq_printf(m, "Vendor\t\t: RPC Electronics STx\n"); 77 seq_printf(m, "PVR\t\t: 0x%x\n", pvid); 78 seq_printf(m, "SVR\t\t: 0x%x\n", svid); 79 80 /* Display cpu Pll setting */ 81 phid1 = mfspr(SPRN_HID1); 82 seq_printf(m, "PLL setting\t: 0x%x\n", ((phid1 >> 24) & 0x3f)); 83 } 84 85 machine_arch_initcall(stx_gp3, mpc85xx_common_publish_devices); 86 87 /* 88 * Called very early, device-tree isn't unflattened 89 */ 90 static int __init stx_gp3_probe(void) 91 { 92 return of_machine_is_compatible("stx,gp3-8560"); 93 } 94 95 define_machine(stx_gp3) { 96 .name = "STX GP3", 97 .probe = stx_gp3_probe, 98 .setup_arch = stx_gp3_setup_arch, 99 .init_IRQ = stx_gp3_pic_init, 100 .show_cpuinfo = stx_gp3_show_cpuinfo, 101 .get_irq = mpic_get_irq, 102 .calibrate_decr = generic_calibrate_decr, 103 .progress = udbg_progress, 104 }; 105