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Linux/arch/powerpc/platforms/85xx/stx_gp3.c

  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/time.h>
 32 #include <asm/machdep.h>
 33 #include <asm/pci-bridge.h>
 34 #include <asm/mpic.h>
 35 #include <asm/prom.h>
 36 #include <mm/mmu_decl.h>
 37 #include <asm/udbg.h>
 38 
 39 #include <sysdev/fsl_soc.h>
 40 #include <sysdev/fsl_pci.h>
 41 
 42 #include "mpc85xx.h"
 43 
 44 #ifdef CONFIG_CPM2
 45 #include <asm/cpm2.h>
 46 #endif /* CONFIG_CPM2 */
 47 
 48 static void __init stx_gp3_pic_init(void)
 49 {
 50         struct mpic *mpic = mpic_alloc(NULL, 0, MPIC_BIG_ENDIAN,
 51                         0, 256, " OpenPIC  ");
 52         BUG_ON(mpic == NULL);
 53         mpic_init(mpic);
 54 
 55         mpc85xx_cpm2_pic_init();
 56 }
 57 
 58 /*
 59  * Setup the architecture
 60  */
 61 static void __init stx_gp3_setup_arch(void)
 62 {
 63         if (ppc_md.progress)
 64                 ppc_md.progress("stx_gp3_setup_arch()", 0);
 65 
 66         fsl_pci_assign_primary();
 67 
 68 #ifdef CONFIG_CPM2
 69         cpm2_reset();
 70 #endif
 71 }
 72 
 73 static void stx_gp3_show_cpuinfo(struct seq_file *m)
 74 {
 75         uint pvid, svid, phid1;
 76 
 77         pvid = mfspr(SPRN_PVR);
 78         svid = mfspr(SPRN_SVR);
 79 
 80         seq_printf(m, "Vendor\t\t: RPC Electronics STx\n");
 81         seq_printf(m, "PVR\t\t: 0x%x\n", pvid);
 82         seq_printf(m, "SVR\t\t: 0x%x\n", svid);
 83 
 84         /* Display cpu Pll setting */
 85         phid1 = mfspr(SPRN_HID1);
 86         seq_printf(m, "PLL setting\t: 0x%x\n", ((phid1 >> 24) & 0x3f));
 87 }
 88 
 89 machine_arch_initcall(stx_gp3, mpc85xx_common_publish_devices);
 90 
 91 /*
 92  * Called very early, device-tree isn't unflattened
 93  */
 94 static int __init stx_gp3_probe(void)
 95 {
 96         unsigned long root = of_get_flat_dt_root();
 97 
 98         return of_flat_dt_is_compatible(root, "stx,gp3-8560");
 99 }
100 
101 define_machine(stx_gp3) {
102         .name                   = "STX GP3",
103         .probe                  = stx_gp3_probe,
104         .setup_arch             = stx_gp3_setup_arch,
105         .init_IRQ               = stx_gp3_pic_init,
106         .show_cpuinfo           = stx_gp3_show_cpuinfo,
107         .get_irq                = mpic_get_irq,
108         .restart                = fsl_rstcr_restart,
109         .calibrate_decr         = generic_calibrate_decr,
110         .progress               = udbg_progress,
111 };
112 

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