LXR uboot/arch/powerpc/cpu/mpc8xxx/cpu.c

   1/*
   2 * Copyright 2009-2012 Freescale Semiconductor, Inc.
   3 *
   4 * This file is derived from arch/powerpc/cpu/mpc85xx/cpu.c and
   5 * arch/powerpc/cpu/mpc86xx/cpu.c. Basically this file contains
   6 * cpu specific common code for 85xx/86xx processors.
   7 * SPDX-License-Identifier:     GPL-2.0+
   8 */
   9
  10#include <config.h>
  11#include <common.h>
  12#include <command.h>
  13#include <tsec.h>
  14#include <fm_eth.h>
  15#include <netdev.h>
  16#include <asm/cache.h>
  17#include <asm/io.h>
  18#include <vsc9953.h>
  19
  20DECLARE_GLOBAL_DATA_PTR;
  21
  22static struct cpu_type cpu_type_list[] = {
  23#if defined(CONFIG_MPC85xx)
  24        CPU_TYPE_ENTRY(8533, 8533, 1),
  25        CPU_TYPE_ENTRY(8535, 8535, 1),
  26        CPU_TYPE_ENTRY(8536, 8536, 1),
  27        CPU_TYPE_ENTRY(8540, 8540, 1),
  28        CPU_TYPE_ENTRY(8541, 8541, 1),
  29        CPU_TYPE_ENTRY(8543, 8543, 1),
  30        CPU_TYPE_ENTRY(8544, 8544, 1),
  31        CPU_TYPE_ENTRY(8545, 8545, 1),
  32        CPU_TYPE_ENTRY(8547, 8547, 1),
  33        CPU_TYPE_ENTRY(8548, 8548, 1),
  34        CPU_TYPE_ENTRY(8555, 8555, 1),
  35        CPU_TYPE_ENTRY(8560, 8560, 1),
  36        CPU_TYPE_ENTRY(8567, 8567, 1),
  37        CPU_TYPE_ENTRY(8568, 8568, 1),
  38        CPU_TYPE_ENTRY(8569, 8569, 1),
  39        CPU_TYPE_ENTRY(8572, 8572, 2),
  40        CPU_TYPE_ENTRY(P1010, P1010, 1),
  41        CPU_TYPE_ENTRY(P1011, P1011, 1),
  42        CPU_TYPE_ENTRY(P1012, P1012, 1),
  43        CPU_TYPE_ENTRY(P1013, P1013, 1),
  44        CPU_TYPE_ENTRY(P1014, P1014, 1),
  45        CPU_TYPE_ENTRY(P1017, P1017, 1),
  46        CPU_TYPE_ENTRY(P1020, P1020, 2),
  47        CPU_TYPE_ENTRY(P1021, P1021, 2),
  48        CPU_TYPE_ENTRY(P1022, P1022, 2),
  49        CPU_TYPE_ENTRY(P1023, P1023, 2),
  50        CPU_TYPE_ENTRY(P1024, P1024, 2),
  51        CPU_TYPE_ENTRY(P1025, P1025, 2),
  52        CPU_TYPE_ENTRY(P2010, P2010, 1),
  53        CPU_TYPE_ENTRY(P2020, P2020, 2),
  54        CPU_TYPE_ENTRY(P2040, P2040, 4),
  55        CPU_TYPE_ENTRY(P2041, P2041, 4),
  56        CPU_TYPE_ENTRY(P3041, P3041, 4),
  57        CPU_TYPE_ENTRY(P4040, P4040, 4),
  58        CPU_TYPE_ENTRY(P4080, P4080, 8),
  59        CPU_TYPE_ENTRY(P5010, P5010, 1),
  60        CPU_TYPE_ENTRY(P5020, P5020, 2),
  61        CPU_TYPE_ENTRY(P5021, P5021, 2),
  62        CPU_TYPE_ENTRY(P5040, P5040, 4),
  63        CPU_TYPE_ENTRY(T4240, T4240, 0),
  64        CPU_TYPE_ENTRY(T4120, T4120, 0),
  65        CPU_TYPE_ENTRY(T4160, T4160, 0),
  66        CPU_TYPE_ENTRY(T4080, T4080, 4),
  67        CPU_TYPE_ENTRY(B4860, B4860, 0),
  68        CPU_TYPE_ENTRY(G4860, G4860, 0),
  69        CPU_TYPE_ENTRY(B4440, B4440, 0),
  70        CPU_TYPE_ENTRY(B4460, B4460, 0),
  71        CPU_TYPE_ENTRY(G4440, G4440, 0),
  72        CPU_TYPE_ENTRY(B4420, B4420, 0),
  73        CPU_TYPE_ENTRY(B4220, B4220, 0),
  74        CPU_TYPE_ENTRY(T1040, T1040, 0),
  75        CPU_TYPE_ENTRY(T1041, T1041, 0),
  76        CPU_TYPE_ENTRY(T1042, T1042, 0),
  77        CPU_TYPE_ENTRY(T1020, T1020, 0),
  78        CPU_TYPE_ENTRY(T1021, T1021, 0),
  79        CPU_TYPE_ENTRY(T1022, T1022, 0),
  80        CPU_TYPE_ENTRY(T1024, T1024, 0),
  81        CPU_TYPE_ENTRY(T1023, T1023, 0),
  82        CPU_TYPE_ENTRY(T1014, T1014, 0),
  83        CPU_TYPE_ENTRY(T1013, T1013, 0),
  84        CPU_TYPE_ENTRY(T2080, T2080, 0),
  85        CPU_TYPE_ENTRY(T2081, T2081, 0),
  86        CPU_TYPE_ENTRY(BSC9130, 9130, 1),
  87        CPU_TYPE_ENTRY(BSC9131, 9131, 1),
  88        CPU_TYPE_ENTRY(BSC9132, 9132, 2),
  89        CPU_TYPE_ENTRY(BSC9232, 9232, 2),
  90        CPU_TYPE_ENTRY(C291, C291, 1),
  91        CPU_TYPE_ENTRY(C292, C292, 1),
  92        CPU_TYPE_ENTRY(C293, C293, 1),
  93#elif defined(CONFIG_MPC86xx)
  94        CPU_TYPE_ENTRY(8610, 8610, 1),
  95        CPU_TYPE_ENTRY(8641, 8641, 2),
  96        CPU_TYPE_ENTRY(8641D, 8641D, 2),
  97#endif
  98};
  99
 100#ifdef CONFIG_SYS_FSL_QORIQ_CHASSIS2
 101static inline u32 init_type(u32 cluster, int init_id)
 102{
 103        ccsr_gur_t *gur = (void __iomem *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
 104        u32 idx = (cluster >> (init_id * 8)) & TP_CLUSTER_INIT_MASK;
 105        u32 type = in_be32(&gur->tp_ityp[idx]);
 106
 107        if (type & TP_ITYP_AV)
 108                return type;
 109
 110        return 0;
 111}
 112
 113u32 compute_ppc_cpumask(void)
 114{
 115        ccsr_gur_t *gur = (void __iomem *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
 116        int i = 0, count = 0;
 117        u32 cluster, type, mask = 0;
 118
 119        do {
 120                int j;
 121                cluster = in_be32(&gur->tp_cluster[i].lower);
 122                for (j = 0; j < TP_INIT_PER_CLUSTER; j++) {
 123                        type = init_type(cluster, j);
 124                        if (type) {
 125                                if (TP_ITYP_TYPE(type) == TP_ITYP_TYPE_PPC)
 126                                        mask |= 1 << count;
 127                                count++;
 128                        }
 129                }
 130                i++;
 131        } while ((cluster & TP_CLUSTER_EOC) != TP_CLUSTER_EOC);
 132
 133        return mask;
 134}
 135
 136#ifdef CONFIG_HETROGENOUS_CLUSTERS
 137u32 compute_dsp_cpumask(void)
 138{
 139        ccsr_gur_t *gur = (void __iomem *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
 140        int i = CONFIG_DSP_CLUSTER_START, count = 0;
 141        u32 cluster, type, dsp_mask = 0;
 142
 143        do {
 144                int j;
 145                cluster = in_be32(&gur->tp_cluster[i].lower);
 146                for (j = 0; j < TP_INIT_PER_CLUSTER; j++) {
 147                        type = init_type(cluster, j);
 148                        if (type) {
 149                                if (TP_ITYP_TYPE(type) == TP_ITYP_TYPE_SC)
 150                                        dsp_mask |= 1 << count;
 151                                count++;
 152                        }
 153                }
 154                i++;
 155        } while ((cluster & TP_CLUSTER_EOC) != TP_CLUSTER_EOC);
 156
 157        return dsp_mask;
 158}
 159
 160int fsl_qoriq_dsp_core_to_cluster(unsigned int core)
 161{
 162        ccsr_gur_t *gur = (void __iomem *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
 163        int count = 0, i = CONFIG_DSP_CLUSTER_START;
 164        u32 cluster;
 165
 166        do {
 167                int j;
 168                cluster = in_be32(&gur->tp_cluster[i].lower);
 169                for (j = 0; j < TP_INIT_PER_CLUSTER; j++) {
 170                        if (init_type(cluster, j)) {
 171                                if (count == core)
 172                                        return i;
 173                                count++;
 174                        }
 175                }
 176                i++;
 177        } while ((cluster & TP_CLUSTER_EOC) != TP_CLUSTER_EOC);
 178
 179        return -1;      /* cannot identify the cluster */
 180}
 181#endif
 182
 183int fsl_qoriq_core_to_cluster(unsigned int core)
 184{
 185        ccsr_gur_t *gur = (void __iomem *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
 186        int i = 0, count = 0;
 187        u32 cluster;
 188
 189        do {
 190                int j;
 191                cluster = in_be32(&gur->tp_cluster[i].lower);
 192                for (j = 0; j < TP_INIT_PER_CLUSTER; j++) {
 193                        if (init_type(cluster, j)) {
 194                                if (count == core)
 195                                        return i;
 196                                count++;
 197                        }
 198                }
 199                i++;
 200        } while ((cluster & TP_CLUSTER_EOC) != TP_CLUSTER_EOC);
 201
 202        return -1;      /* cannot identify the cluster */
 203}
 204
 205#else /* CONFIG_SYS_FSL_QORIQ_CHASSIS2 */
 206/*
 207 * Before chassis genenration 2, the cpumask should be hard-coded.
 208 * In case of cpu type unknown or cpumask unset, use 1 as fail save.
 209 */
 210#define compute_ppc_cpumask()   1
 211#define fsl_qoriq_core_to_cluster(x) x
 212#endif /* CONFIG_SYS_FSL_QORIQ_CHASSIS2 */
 213
 214static struct cpu_type cpu_type_unknown = CPU_TYPE_ENTRY(Unknown, Unknown, 0);
 215
 216struct cpu_type *identify_cpu(u32 ver)
 217{
 218        int i;
 219        for (i = 0; i < ARRAY_SIZE(cpu_type_list); i++) {
 220                if (cpu_type_list[i].soc_ver == ver)
 221                        return &cpu_type_list[i];
 222        }
 223        return &cpu_type_unknown;
 224}
 225
 226#define MPC8xxx_PICFRR_NCPU_MASK  0x00001f00
 227#define MPC8xxx_PICFRR_NCPU_SHIFT 8
 228
 229/*
 230 * Return a 32-bit mask indicating which cores are present on this SOC.
 231 */
 232__weak u32 cpu_mask(void)
 233{
 234        ccsr_pic_t __iomem *pic = (void *)CONFIG_SYS_MPC8xxx_PIC_ADDR;
 235        struct cpu_type *cpu = gd->arch.cpu;
 236
 237        /* better to query feature reporting register than just assume 1 */
 238        if (cpu == &cpu_type_unknown)
 239        return ((in_be32(&pic->frr) & MPC8xxx_PICFRR_NCPU_MASK) >>
 240                        MPC8xxx_PICFRR_NCPU_SHIFT) + 1;
 241
 242        if (cpu->num_cores == 0)
 243                return compute_ppc_cpumask();
 244
 245        return cpu->mask;
 246}
 247
 248#ifdef CONFIG_HETROGENOUS_CLUSTERS
 249__weak u32 cpu_dsp_mask(void)
 250{
 251        ccsr_pic_t __iomem *pic = (void *)CONFIG_SYS_MPC8xxx_PIC_ADDR;
 252        struct cpu_type *cpu = gd->arch.cpu;
 253
 254        /* better to query feature reporting register than just assume 1 */
 255        if (cpu == &cpu_type_unknown)
 256                return ((in_be32(&pic->frr) & MPC8xxx_PICFRR_NCPU_MASK) >>
 257                         MPC8xxx_PICFRR_NCPU_SHIFT) + 1;
 258
 259        if (cpu->dsp_num_cores == 0)
 260                return compute_dsp_cpumask();
 261
 262        return cpu->dsp_mask;
 263}
 264
 265/*
 266 * Return the number of SC/DSP cores on this SOC.
 267 */
 268__weak int cpu_num_dspcores(void)
 269{
 270        struct cpu_type *cpu = gd->arch.cpu;
 271
 272        /*
 273         * Report # of cores in terms of the cpu_mask if we haven't
 274         * figured out how many there are yet
 275         */
 276        if (cpu->dsp_num_cores == 0)
 277                return hweight32(cpu_dsp_mask());
 278
 279        return cpu->dsp_num_cores;
 280}
 281#endif
 282
 283/*
 284 * Return the number of PPC cores on this SOC.
 285 */
 286__weak int cpu_numcores(void)
 287{
 288        struct cpu_type *cpu = gd->arch.cpu;
 289
 290        /*
 291         * Report # of cores in terms of the cpu_mask if we haven't
 292         * figured out how many there are yet
 293         */
 294        if (cpu->num_cores == 0)
 295                return hweight32(cpu_mask());
 296
 297        return cpu->num_cores;
 298}
 299
 300
 301/*
 302 * Check if the given core ID is valid
 303 *
 304 * Returns zero if it isn't, 1 if it is.
 305 */
 306int is_core_valid(unsigned int core)
 307{
 308        return !!((1 << core) & cpu_mask());
 309}
 310
 311int probecpu (void)
 312{
 313        uint svr;
 314        uint ver;
 315
 316        svr = get_svr();
 317        ver = SVR_SOC_VER(svr);
 318
 319        gd->arch.cpu = identify_cpu(ver);
 320
 321        return 0;
 322}
 323
 324/* Once in memory, compute mask & # cores once and save them off */
 325int fixup_cpu(void)
 326{
 327        struct cpu_type *cpu = gd->arch.cpu;
 328
 329        if (cpu->num_cores == 0) {
 330                cpu->mask = cpu_mask();
 331                cpu->num_cores = cpu_numcores();
 332        }
 333
 334#ifdef CONFIG_HETROGENOUS_CLUSTERS
 335        if (cpu->dsp_num_cores == 0) {
 336                cpu->dsp_mask = cpu_dsp_mask();
 337                cpu->dsp_num_cores = cpu_num_dspcores();
 338        }
 339#endif
 340        return 0;
 341}
 342
 343/*
 344 * Initializes on-chip ethernet controllers.
 345 * to override, implement board_eth_init()
 346 */
 347int cpu_eth_init(bd_t *bis)
 348{
 349#if defined(CONFIG_ETHER_ON_FCC)
 350        fec_initialize(bis);
 351#endif
 352
 353#if defined(CONFIG_UEC_ETH)
 354        uec_standard_init(bis);
 355#endif
 356
 357#if defined(CONFIG_TSEC_ENET) || defined(CONFIG_MPC85XX_FEC)
 358        tsec_standard_init(bis);
 359#endif
 360
 361#ifdef CONFIG_FMAN_ENET
 362        fm_standard_init(bis);
 363#endif
 364
 365#ifdef CONFIG_VSC9953
 366        vsc9953_init(bis);
 367#endif
 368        return 0;
 369}
 370