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 * See file CREDITS for list of people who contributed to this 8 * project. 9 * 10 * This program is free software; you can redistribute it and/or 11 * modify it under the terms of the GNU General Public License as 12 * published by the Free Software Foundation; either version 2 of 13 * the License, or (at your option) any later version. 14 * 15 * This program is distributed in the hope that it will be useful, 16 * but WITHOUT ANY WARRANTY; without even the implied warranty of 17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 18 * GNU General Public License for more details. 19 * 20 * You should have received a copy of the GNU General Public License 21 * along with this program; if not, write to the Free Software 22 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, 23 * MA 02111-1307 USA 24 */ 25 26 #include <config.h> 27 #include <common.h> 28 #include <command.h> 29 #include <tsec.h> 30 #include <fm_eth.h> 31 #include <netdev.h> 32 #include <asm/cache.h> 33 #include <asm/io.h> 34 35 DECLARE_GLOBAL_DATA_PTR; 36 37 struct cpu_type cpu_type_list [] = { 38 #if defined(CONFIG_MPC85xx) 39 CPU_TYPE_ENTRY(8533, 8533, 1), 40 CPU_TYPE_ENTRY(8535, 8535, 1), 41 CPU_TYPE_ENTRY(8536, 8536, 1), 42 CPU_TYPE_ENTRY(8540, 8540, 1), 43 CPU_TYPE_ENTRY(8541, 8541, 1), 44 CPU_TYPE_ENTRY(8543, 8543, 1), 45 CPU_TYPE_ENTRY(8544, 8544, 1), 46 CPU_TYPE_ENTRY(8545, 8545, 1), 47 CPU_TYPE_ENTRY(8547, 8547, 1), 48 CPU_TYPE_ENTRY(8548, 8548, 1), 49 CPU_TYPE_ENTRY(8555, 8555, 1), 50 CPU_TYPE_ENTRY(8560, 8560, 1), 51 CPU_TYPE_ENTRY(8567, 8567, 1), 52 CPU_TYPE_ENTRY(8568, 8568, 1), 53 CPU_TYPE_ENTRY(8569, 8569, 1), 54 CPU_TYPE_ENTRY(8572, 8572, 2), 55 CPU_TYPE_ENTRY(P1010, P1010, 1), 56 CPU_TYPE_ENTRY(P1011, P1011, 1), 57 CPU_TYPE_ENTRY(P1012, P1012, 1), 58 CPU_TYPE_ENTRY(P1013, P1013, 1), 59 CPU_TYPE_ENTRY(P1014, P1014, 1), 60 CPU_TYPE_ENTRY(P1017, P1017, 1), 61 CPU_TYPE_ENTRY(P1020, P1020, 2), 62 CPU_TYPE_ENTRY(P1021, P1021, 2), 63 CPU_TYPE_ENTRY(P1022, P1022, 2), 64 CPU_TYPE_ENTRY(P1023, P1023, 2), 65 CPU_TYPE_ENTRY(P1024, P1024, 2), 66 CPU_TYPE_ENTRY(P1025, P1025, 2), 67 CPU_TYPE_ENTRY(P2010, P2010, 1), 68 CPU_TYPE_ENTRY(P2020, P2020, 2), 69 CPU_TYPE_ENTRY(P2040, P2040, 4), 70 CPU_TYPE_ENTRY(P2041, P2041, 4), 71 CPU_TYPE_ENTRY(P3041, P3041, 4), 72 CPU_TYPE_ENTRY(P4040, P4040, 4), 73 CPU_TYPE_ENTRY(P4080, P4080, 8), 74 CPU_TYPE_ENTRY(P5010, P5010, 1), 75 CPU_TYPE_ENTRY(P5020, P5020, 2), 76 CPU_TYPE_ENTRY(BSC9130, 9130, 1), 77 CPU_TYPE_ENTRY(BSC9131, 9131, 1), 78 #elif defined(CONFIG_MPC86xx) 79 CPU_TYPE_ENTRY(8610, 8610, 1), 80 CPU_TYPE_ENTRY(8641, 8641, 2), 81 CPU_TYPE_ENTRY(8641D, 8641D, 2), 82 #endif 83 }; 84 85 #ifdef CONFIG_SYS_FSL_QORIQ_CHASSIS2 86 u32 compute_ppc_cpumask(void) 87 { 88 ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR); 89 int i = 0, count = 0; 90 u32 cluster, mask = 0; 91 92 do { 93 int j; 94 cluster = in_be32(&gur->tp_cluster[i++].lower); 95 for (j = 0; j < 4; j++) { 96 u32 idx = (cluster >> (j*8)) & TP_CLUSTER_INIT_MASK; 97 u32 type = in_be32(&gur->tp_ityp[idx]); 98 99 if (type & TP_ITYP_AV) { 100 if (TP_ITYP_TYPE(type) == TP_ITYP_TYPE_PPC) 101 mask |= 1 << count; 102 } 103 count++; 104 } 105 } while ((cluster & TP_CLUSTER_EOC) != TP_CLUSTER_EOC); 106 107 return mask; 108 } 109 #else /* CONFIG_SYS_FSL_QORIQ_CHASSIS2 */ 110 /* 111 * Before chassis genenration 2, the cpumask should be hard-coded. 112 * In case of cpu type unknown or cpumask unset, use 1 as fail save. 113 */ 114 #define compute_ppc_cpumask() 1 115 #endif /* CONFIG_SYS_FSL_QORIQ_CHASSIS2 */ 116 117 struct cpu_type cpu_type_unknown = CPU_TYPE_ENTRY(Unknown, Unknown, 0); 118 119 struct cpu_type *identify_cpu(u32 ver) 120 { 121 int i; 122 for (i = 0; i < ARRAY_SIZE(cpu_type_list); i++) { 123 if (cpu_type_list[i].soc_ver == ver) 124 return &cpu_type_list[i]; 125 } 126 return &cpu_type_unknown; 127 } 128 129 #define MPC8xxx_PICFRR_NCPU_MASK 0x00001f00 130 #define MPC8xxx_PICFRR_NCPU_SHIFT 8 131 132 /* 133 * Return a 32-bit mask indicating which cores are present on this SOC. 134 */ 135 u32 cpu_mask() 136 { 137 ccsr_pic_t __iomem *pic = (void *)CONFIG_SYS_MPC8xxx_PIC_ADDR; 138 struct cpu_type *cpu = gd->cpu; 139 140 /* better to query feature reporting register than just assume 1 */ 141 if (cpu == &cpu_type_unknown) 142 return ((in_be32(&pic->frr) & MPC8xxx_PICFRR_NCPU_MASK) >> 143 MPC8xxx_PICFRR_NCPU_SHIFT) + 1; 144 145 if (cpu->num_cores == 0) 146 return compute_ppc_cpumask(); 147 148 return cpu->mask; 149 } 150 151 /* 152 * Return the number of cores on this SOC. 153 */ 154 int cpu_numcores() { 155 struct cpu_type *cpu = gd->cpu; 156 157 /* 158 * Report # of cores in terms of the cpu_mask if we haven't 159 * figured out how many there are yet 160 */ 161 if (cpu->num_cores == 0) 162 return hweight32(cpu_mask()); 163 164 return cpu->num_cores; 165 } 166 167 /* 168 * Check if the given core ID is valid 169 * 170 * Returns zero if it isn't, 1 if it is. 171 */ 172 int is_core_valid(unsigned int core) 173 { 174 return !!((1 << core) & cpu_mask()); 175 } 176 177 int probecpu (void) 178 { 179 uint svr; 180 uint ver; 181 182 svr = get_svr(); 183 ver = SVR_SOC_VER(svr); 184 185 gd->cpu = identify_cpu(ver); 186 187 return 0; 188 } 189 190 /* Once in memory, compute mask & # cores once and save them off */ 191 int fixup_cpu(void) 192 { 193 struct cpu_type *cpu = gd->cpu; 194 195 if (cpu->num_cores == 0) { 196 cpu->mask = cpu_mask(); 197 cpu->num_cores = cpu_numcores(); 198 } 199 200 return 0; 201 } 202 203 /* 204 * Initializes on-chip ethernet controllers. 205 * to override, implement board_eth_init() 206 */ 207 int cpu_eth_init(bd_t *bis) 208 { 209 #if defined(CONFIG_ETHER_ON_FCC) 210 fec_initialize(bis); 211 #endif 212 213 #if defined(CONFIG_UEC_ETH) 214 uec_standard_init(bis); 215 #endif 216 217 #if defined(CONFIG_TSEC_ENET) || defined(CONFIG_MPC85XX_FEC) 218 tsec_standard_init(bis); 219 #endif 220 221 #ifdef CONFIG_FMAN_ENET 222 fm_standard_init(bis); 223 #endif 224 return 0; 225 } 226