arch/powerpc/platforms/85xx/mpc85xx_rdb.c

   1 /*
   2  * MPC85xx RDB Board Setup
   3  *
   4  * Copyright 2009,2012-2013 Freescale Semiconductor Inc.
   5  *
   6  * This program is free software; you can redistribute  it and/or modify it
   7  * under  the terms of  the GNU General  Public License as published by the
   8  * Free Software Foundation;  either version 2 of the  License, or (at your
   9  * option) any later version.
  10  */
  11
  12 #include <linux/stddef.h>
  13 #include <linux/kernel.h>
  14 #include <linux/pci.h>
  15 #include <linux/kdev_t.h>
  16 #include <linux/delay.h>
  17 #include <linux/seq_file.h>
  18 #include <linux/interrupt.h>
  19 #include <linux/of_platform.h>
  20 #include <linux/fsl/guts.h>
  21
  22 #include <asm/time.h>
  23 #include <asm/machdep.h>
  24 #include <asm/pci-bridge.h>
  25 #include <mm/mmu_decl.h>
  26 #include <asm/prom.h>
  27 #include <asm/udbg.h>
  28 #include <asm/mpic.h>
  29 #include <soc/fsl/qe/qe.h>
  30 #include <soc/fsl/qe/qe_ic.h>
  31
  32 #include <sysdev/fsl_soc.h>
  33 #include <sysdev/fsl_pci.h>
  34 #include "smp.h"
  35
  36 #include "mpc85xx.h"
  37
  38 #undef DEBUG
  39
  40 #ifdef DEBUG
  41 #define DBG(fmt, args...) printk(KERN_ERR "%s: " fmt, __func__, ## args)
  42 #else
  43 #define DBG(fmt, args...)
  44 #endif
  45
  46
  47 void __init mpc85xx_rdb_pic_init(void)
  48 {
  49         struct mpic *mpic;
  50
  51 #ifdef CONFIG_QUICC_ENGINE
  52         struct device_node *np;
  53 #endif
  54
  55         if (of_machine_is_compatible("fsl,MPC85XXRDB-CAMP")) {
  56                 mpic = mpic_alloc(NULL, 0, MPIC_NO_RESET |
  57                         MPIC_BIG_ENDIAN |
  58                         MPIC_SINGLE_DEST_CPU,
  59                         0, 256, " OpenPIC  ");
  60         } else {
  61                 mpic = mpic_alloc(NULL, 0,
  62                   MPIC_BIG_ENDIAN |
  63                   MPIC_SINGLE_DEST_CPU,
  64                   0, 256, " OpenPIC  ");
  65         }
  66
  67         BUG_ON(mpic == NULL);
  68         mpic_init(mpic);
  69
  70 #ifdef CONFIG_QUICC_ENGINE
  71         np = of_find_compatible_node(NULL, NULL, "fsl,qe-ic");
  72         if (np) {
  73                 qe_ic_init(np, 0, qe_ic_cascade_low_mpic,
  74                                 qe_ic_cascade_high_mpic);
  75                 of_node_put(np);
  76
  77         } else
  78                 pr_err("%s: Could not find qe-ic node\n", __func__);
  79 #endif
  80
  81 }
  82
  83 /*
  84  * Setup the architecture
  85  */
  86 static void __init mpc85xx_rdb_setup_arch(void)
  87 {
  88         if (ppc_md.progress)
  89                 ppc_md.progress("mpc85xx_rdb_setup_arch()", 0);
  90
  91         mpc85xx_smp_init();
  92
  93         fsl_pci_assign_primary();
  94
  95 #ifdef CONFIG_QUICC_ENGINE
  96         mpc85xx_qe_init();
  97         mpc85xx_qe_par_io_init();
  98 #if defined(CONFIG_UCC_GETH) || defined(CONFIG_SERIAL_QE)
  99         if (machine_is(p1025_rdb)) {
 100                 struct device_node *np;
 101
 102                 struct ccsr_guts __iomem *guts;
 103
 104                 np = of_find_node_by_name(NULL, "global-utilities");
 105                 if (np) {
 106                         guts = of_iomap(np, 0);
 107                         if (!guts) {
 108
 109                                 pr_err("mpc85xx-rdb: could not map global utilities register\n");
 110
 111                         } else {
 112                         /* P1025 has pins muxed for QE and other functions. To
 113                         * enable QE UEC mode, we need to set bit QE0 for UCC1
 114                         * in Eth mode, QE0 and QE3 for UCC5 in Eth mode, QE9
 115                         * and QE12 for QE MII management singals in PMUXCR
 116                         * register.
 117                         */
 118                                 setbits32(&guts->pmuxcr, MPC85xx_PMUXCR_QE(0) |
 119                                                 MPC85xx_PMUXCR_QE(3) |
 120                                                 MPC85xx_PMUXCR_QE(9) |
 121                                                 MPC85xx_PMUXCR_QE(12));
 122                                 iounmap(guts);
 123                         }
 124                         of_node_put(np);
 125                 }
 126
 127         }
 128 #endif
 129 #endif  /* CONFIG_QUICC_ENGINE */
 130
 131         printk(KERN_INFO "MPC85xx RDB board from Freescale Semiconductor\n");
 132 }
 133
 134 machine_arch_initcall(p2020_rdb, mpc85xx_common_publish_devices);
 135 machine_arch_initcall(p2020_rdb_pc, mpc85xx_common_publish_devices);
 136 machine_arch_initcall(p1020_mbg_pc, mpc85xx_common_publish_devices);
 137 machine_arch_initcall(p1020_rdb, mpc85xx_common_publish_devices);
 138 machine_arch_initcall(p1020_rdb_pc, mpc85xx_common_publish_devices);
 139 machine_arch_initcall(p1020_rdb_pd, mpc85xx_common_publish_devices);
 140 machine_arch_initcall(p1020_utm_pc, mpc85xx_common_publish_devices);
 141 machine_arch_initcall(p1021_rdb_pc, mpc85xx_common_publish_devices);
 142 machine_arch_initcall(p1025_rdb, mpc85xx_common_publish_devices);
 143 machine_arch_initcall(p1024_rdb, mpc85xx_common_publish_devices);
 144
 145 /*
 146  * Called very early, device-tree isn't unflattened
 147  */
 148 static int __init p2020_rdb_probe(void)
 149 {
 150         if (of_machine_is_compatible("fsl,P2020RDB"))
 151                 return 1;
 152         return 0;
 153 }
 154
 155 static int __init p1020_rdb_probe(void)
 156 {
 157         if (of_machine_is_compatible("fsl,P1020RDB"))
 158                 return 1;
 159         return 0;
 160 }
 161
 162 static int __init p1020_rdb_pc_probe(void)
 163 {
 164         return of_machine_is_compatible("fsl,P1020RDB-PC");
 165 }
 166
 167 static int __init p1020_rdb_pd_probe(void)
 168 {
 169         return of_machine_is_compatible("fsl,P1020RDB-PD");
 170 }
 171
 172 static int __init p1021_rdb_pc_probe(void)
 173 {
 174         if (of_machine_is_compatible("fsl,P1021RDB-PC"))
 175                 return 1;
 176         return 0;
 177 }
 178
 179 static int __init p2020_rdb_pc_probe(void)
 180 {
 181         if (of_machine_is_compatible("fsl,P2020RDB-PC"))
 182                 return 1;
 183         return 0;
 184 }
 185
 186 static int __init p1025_rdb_probe(void)
 187 {
 188         return of_machine_is_compatible("fsl,P1025RDB");
 189 }
 190
 191 static int __init p1020_mbg_pc_probe(void)
 192 {
 193         return of_machine_is_compatible("fsl,P1020MBG-PC");
 194 }
 195
 196 static int __init p1020_utm_pc_probe(void)
 197 {
 198         return of_machine_is_compatible("fsl,P1020UTM-PC");
 199 }
 200
 201 static int __init p1024_rdb_probe(void)
 202 {
 203         return of_machine_is_compatible("fsl,P1024RDB");
 204 }
 205
 206 define_machine(p2020_rdb) {
 207         .name                   = "P2020 RDB",
 208         .probe                  = p2020_rdb_probe,
 209         .setup_arch             = mpc85xx_rdb_setup_arch,
 210         .init_IRQ               = mpc85xx_rdb_pic_init,
 211 #ifdef CONFIG_PCI
 212         .pcibios_fixup_bus      = fsl_pcibios_fixup_bus,
 213         .pcibios_fixup_phb      = fsl_pcibios_fixup_phb,
 214 #endif
 215         .get_irq                = mpic_get_irq,
 216         .calibrate_decr         = generic_calibrate_decr,
 217         .progress               = udbg_progress,
 218 };
 219
 220 define_machine(p1020_rdb) {
 221         .name                   = "P1020 RDB",
 222         .probe                  = p1020_rdb_probe,
 223         .setup_arch             = mpc85xx_rdb_setup_arch,
 224         .init_IRQ               = mpc85xx_rdb_pic_init,
 225 #ifdef CONFIG_PCI
 226         .pcibios_fixup_bus      = fsl_pcibios_fixup_bus,
 227         .pcibios_fixup_phb      = fsl_pcibios_fixup_phb,
 228 #endif
 229         .get_irq                = mpic_get_irq,
 230         .calibrate_decr         = generic_calibrate_decr,
 231         .progress               = udbg_progress,
 232 };
 233
 234 define_machine(p1021_rdb_pc) {
 235         .name                   = "P1021 RDB-PC",
 236         .probe                  = p1021_rdb_pc_probe,
 237         .setup_arch             = mpc85xx_rdb_setup_arch,
 238         .init_IRQ               = mpc85xx_rdb_pic_init,
 239 #ifdef CONFIG_PCI
 240         .pcibios_fixup_bus      = fsl_pcibios_fixup_bus,
 241         .pcibios_fixup_phb      = fsl_pcibios_fixup_phb,
 242 #endif
 243         .get_irq                = mpic_get_irq,
 244         .calibrate_decr         = generic_calibrate_decr,
 245         .progress               = udbg_progress,
 246 };
 247
 248 define_machine(p2020_rdb_pc) {
 249         .name                   = "P2020RDB-PC",
 250         .probe                  = p2020_rdb_pc_probe,
 251         .setup_arch             = mpc85xx_rdb_setup_arch,
 252         .init_IRQ               = mpc85xx_rdb_pic_init,
 253 #ifdef CONFIG_PCI
 254         .pcibios_fixup_bus      = fsl_pcibios_fixup_bus,
 255         .pcibios_fixup_phb      = fsl_pcibios_fixup_phb,
 256 #endif
 257         .get_irq                = mpic_get_irq,
 258         .calibrate_decr         = generic_calibrate_decr,
 259         .progress               = udbg_progress,
 260 };
 261
 262 define_machine(p1025_rdb) {
 263         .name                   = "P1025 RDB",
 264         .probe                  = p1025_rdb_probe,
 265         .setup_arch             = mpc85xx_rdb_setup_arch,
 266         .init_IRQ               = mpc85xx_rdb_pic_init,
 267 #ifdef CONFIG_PCI
 268         .pcibios_fixup_bus      = fsl_pcibios_fixup_bus,
 269         .pcibios_fixup_phb      = fsl_pcibios_fixup_phb,
 270 #endif
 271         .get_irq                = mpic_get_irq,
 272         .calibrate_decr         = generic_calibrate_decr,
 273         .progress               = udbg_progress,
 274 };
 275
 276 define_machine(p1020_mbg_pc) {
 277         .name                   = "P1020 MBG-PC",
 278         .probe                  = p1020_mbg_pc_probe,
 279         .setup_arch             = mpc85xx_rdb_setup_arch,
 280         .init_IRQ               = mpc85xx_rdb_pic_init,
 281 #ifdef CONFIG_PCI
 282         .pcibios_fixup_bus      = fsl_pcibios_fixup_bus,
 283         .pcibios_fixup_phb      = fsl_pcibios_fixup_phb,
 284 #endif
 285         .get_irq                = mpic_get_irq,
 286         .calibrate_decr         = generic_calibrate_decr,
 287         .progress               = udbg_progress,
 288 };
 289
 290 define_machine(p1020_utm_pc) {
 291         .name                   = "P1020 UTM-PC",
 292         .probe                  = p1020_utm_pc_probe,
 293         .setup_arch             = mpc85xx_rdb_setup_arch,
 294         .init_IRQ               = mpc85xx_rdb_pic_init,
 295 #ifdef CONFIG_PCI
 296         .pcibios_fixup_bus      = fsl_pcibios_fixup_bus,
 297         .pcibios_fixup_phb      = fsl_pcibios_fixup_phb,
 298 #endif
 299         .get_irq                = mpic_get_irq,
 300         .calibrate_decr         = generic_calibrate_decr,
 301         .progress               = udbg_progress,
 302 };
 303
 304 define_machine(p1020_rdb_pc) {
 305         .name                   = "P1020RDB-PC",
 306         .probe                  = p1020_rdb_pc_probe,
 307         .setup_arch             = mpc85xx_rdb_setup_arch,
 308         .init_IRQ               = mpc85xx_rdb_pic_init,
 309 #ifdef CONFIG_PCI
 310         .pcibios_fixup_bus      = fsl_pcibios_fixup_bus,
 311         .pcibios_fixup_phb      = fsl_pcibios_fixup_phb,
 312 #endif
 313         .get_irq                = mpic_get_irq,
 314         .calibrate_decr         = generic_calibrate_decr,
 315         .progress               = udbg_progress,
 316 };
 317
 318 define_machine(p1020_rdb_pd) {
 319         .name                   = "P1020RDB-PD",
 320         .probe                  = p1020_rdb_pd_probe,
 321         .setup_arch             = mpc85xx_rdb_setup_arch,
 322         .init_IRQ               = mpc85xx_rdb_pic_init,
 323 #ifdef CONFIG_PCI
 324         .pcibios_fixup_bus      = fsl_pcibios_fixup_bus,
 325         .pcibios_fixup_phb      = fsl_pcibios_fixup_phb,
 326 #endif
 327         .get_irq                = mpic_get_irq,
 328         .calibrate_decr         = generic_calibrate_decr,
 329         .progress               = udbg_progress,
 330 };
 331
 332 define_machine(p1024_rdb) {
 333         .name                   = "P1024 RDB",
 334         .probe                  = p1024_rdb_probe,
 335         .setup_arch             = mpc85xx_rdb_setup_arch,
 336         .init_IRQ               = mpc85xx_rdb_pic_init,
 337 #ifdef CONFIG_PCI
 338         .pcibios_fixup_bus      = fsl_pcibios_fixup_bus,
 339         .pcibios_fixup_phb      = fsl_pcibios_fixup_phb,
 340 #endif
 341         .get_irq                = mpic_get_irq,
 342         .calibrate_decr         = generic_calibrate_decr,
 343         .progress               = udbg_progress,
 344 };