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 <common.h> 27 #include <libfdt.h> 28 #include <fdt_support.h> 29 #include <asm/mp.h> 30 #include <asm/fsl_serdes.h> 31 #include <phy.h> 32 #include <hwconfig.h> 33 34 #define FSL_MAX_NUM_USB_CTRLS 2 35 36 #if defined(CONFIG_MP) && (defined(CONFIG_MPC85xx) || defined(CONFIG_MPC86xx)) 37 static int ft_del_cpuhandle(void *blob, int cpuhandle) 38 { 39 int off, ret = -FDT_ERR_NOTFOUND; 40 41 /* if we find a match, we'll delete at it which point the offsets are 42 * invalid so we start over from the beginning 43 */ 44 off = fdt_node_offset_by_prop_value(blob, -1, "cpu-handle", 45 &cpuhandle, 4); 46 while (off != -FDT_ERR_NOTFOUND) { 47 fdt_delprop(blob, off, "cpu-handle"); 48 ret = 1; 49 off = fdt_node_offset_by_prop_value(blob, -1, "cpu-handle", 50 &cpuhandle, 4); 51 } 52 53 return ret; 54 } 55 56 void ft_fixup_num_cores(void *blob) { 57 int off, num_cores, del_cores; 58 59 del_cores = 0; 60 num_cores = cpu_numcores(); 61 62 off = fdt_node_offset_by_prop_value(blob, -1, "device_type", "cpu", 4); 63 while (off != -FDT_ERR_NOTFOUND) { 64 u32 *reg = (u32 *)fdt_getprop(blob, off, "reg", 0); 65 66 if (!is_core_valid(*reg) || is_core_disabled(*reg)) { 67 int ph = fdt_get_phandle(blob, off); 68 69 /* Delete the cpu node once there are no cpu handles */ 70 if (-FDT_ERR_NOTFOUND == ft_del_cpuhandle(blob, ph)) { 71 fdt_del_node(blob, off); 72 del_cores++; 73 } 74 /* either we deleted some cpu handles or the cpu node 75 * so we reset the offset back to the start since we 76 * can't trust the offsets anymore 77 */ 78 off = -1; 79 } 80 off = fdt_node_offset_by_prop_value(blob, off, 81 "device_type", "cpu", 4); 82 } 83 debug ("%x core system found\n", num_cores); 84 debug ("deleted %d extra core entry entries from device tree\n", 85 del_cores); 86 } 87 #endif /* defined(CONFIG_MPC85xx) || defined(CONFIG_MPC86xx) */ 88 89 #if defined(CONFIG_HAS_FSL_DR_USB) || defined(CONFIG_HAS_FSL_MPH_USB) 90 static int fdt_fixup_usb_mode_phy_type(void *blob, const char *mode, 91 const char *phy_type, int start_offset) 92 { 93 const char *compat_dr = "fsl-usb2-dr"; 94 const char *compat_mph = "fsl-usb2-mph"; 95 const char *prop_mode = "dr_mode"; 96 const char *prop_type = "phy_type"; 97 const char *node_type = NULL; 98 int node_offset; 99 int err; 100 101 node_offset = fdt_node_offset_by_compatible(blob, 102 start_offset, compat_mph); 103 if (node_offset < 0) { 104 node_offset = fdt_node_offset_by_compatible(blob, 105 start_offset, compat_dr); 106 if (node_offset < 0) { 107 printf("WARNING: could not find compatible" 108 " node %s or %s: %s.\n", compat_mph, 109 compat_dr, fdt_strerror(node_offset)); 110 return -1; 111 } else 112 node_type = compat_dr; 113 } else 114 node_type = compat_mph; 115 116 if (mode) { 117 err = fdt_setprop(blob, node_offset, prop_mode, mode, 118 strlen(mode) + 1); 119 if (err < 0) 120 printf("WARNING: could not set %s for %s: %s.\n", 121 prop_mode, node_type, fdt_strerror(err)); 122 } 123 124 if (phy_type) { 125 err = fdt_setprop(blob, node_offset, prop_type, phy_type, 126 strlen(phy_type) + 1); 127 if (err < 0) 128 printf("WARNING: could not set %s for %s: %s.\n", 129 prop_type, node_type, fdt_strerror(err)); 130 } 131 132 return node_offset; 133 } 134 135 void fdt_fixup_dr_usb(void *blob, bd_t *bd) 136 { 137 const char *modes[] = { "host", "peripheral", "otg" }; 138 const char *phys[] = { "ulpi", "utmi" }; 139 const char *mode = NULL; 140 const char *phy_type = NULL; 141 char usb1_defined = 0; 142 int usb_mode_off = -1; 143 int usb_phy_off = -1; 144 char str[5]; 145 int i, j; 146 147 for (i = 1; i <= FSL_MAX_NUM_USB_CTRLS; i++) { 148 int mode_idx = -1, phy_idx = -1; 149 snprintf(str, 5, "%s%d", "usb", i); 150 if (hwconfig(str)) { 151 for (j = 0; j < ARRAY_SIZE(modes); j++) { 152 if (hwconfig_subarg_cmp(str, "dr_mode", 153 modes[j])) { 154 mode_idx = j; 155 break; 156 } 157 } 158 for (j = 0; j < ARRAY_SIZE(phys); j++) { 159 if (hwconfig_subarg_cmp(str, "phy_type", 160 phys[j])) { 161 phy_idx = j; 162 break; 163 } 164 } 165 if (mode_idx >= 0) { 166 usb_mode_off = fdt_fixup_usb_mode_phy_type(blob, 167 modes[mode_idx], NULL, usb_mode_off); 168 if (usb_mode_off < 0) 169 return; 170 } 171 if (phy_idx >= 0) { 172 usb_phy_off = fdt_fixup_usb_mode_phy_type(blob, 173 NULL, phys[phy_idx], usb_phy_off); 174 if (usb_phy_off < 0) 175 return; 176 } 177 if (!strcmp(str, "usb1")) 178 usb1_defined = 1; 179 if (mode_idx < 0 && phy_idx < 0) 180 printf("WARNING: invalid phy or mode\n"); 181 } 182 } 183 if (!usb1_defined) { 184 int usb_off = -1; 185 mode = getenv("usb_dr_mode"); 186 phy_type = getenv("usb_phy_type"); 187 if (!mode && !phy_type) 188 return; 189 fdt_fixup_usb_mode_phy_type(blob, mode, phy_type, usb_off); 190 } 191 } 192 #endif /* defined(CONFIG_HAS_FSL_DR_USB) || defined(CONFIG_HAS_FSL_MPH_USB) */ 193 194 /* 195 * update crypto node properties to a specified revision of the SEC 196 * called with sec_rev == 0 if not on an E processor 197 */ 198 #if CONFIG_SYS_FSL_SEC_COMPAT == 2 /* SEC 2.x/3.x */ 199 void fdt_fixup_crypto_node(void *blob, int sec_rev) 200 { 201 const struct sec_rev_prop { 202 u32 sec_rev; 203 u32 num_channels; 204 u32 channel_fifo_len; 205 u32 exec_units_mask; 206 u32 descriptor_types_mask; 207 } sec_rev_prop_list [] = { 208 { 0x0200, 4, 24, 0x07e, 0x01010ebf }, /* SEC 2.0 */ 209 { 0x0201, 4, 24, 0x0fe, 0x012b0ebf }, /* SEC 2.1 */ 210 { 0x0202, 1, 24, 0x04c, 0x0122003f }, /* SEC 2.2 */ 211 { 0x0204, 4, 24, 0x07e, 0x012b0ebf }, /* SEC 2.4 */ 212 { 0x0300, 4, 24, 0x9fe, 0x03ab0ebf }, /* SEC 3.0 */ 213 { 0x0301, 4, 24, 0xbfe, 0x03ab0ebf }, /* SEC 3.1 */ 214 { 0x0303, 4, 24, 0x97c, 0x03a30abf }, /* SEC 3.3 */ 215 }; 216 char compat_strlist[ARRAY_SIZE(sec_rev_prop_list) * 217 sizeof("fsl,secX.Y")]; 218 int crypto_node, sec_idx, err; 219 char *p; 220 u32 val; 221 222 /* locate crypto node based on lowest common compatible */ 223 crypto_node = fdt_node_offset_by_compatible(blob, -1, "fsl,sec2.0"); 224 if (crypto_node == -FDT_ERR_NOTFOUND) 225 return; 226 227 /* delete it if not on an E-processor */ 228 if (crypto_node > 0 && !sec_rev) { 229 fdt_del_node(blob, crypto_node); 230 return; 231 } 232 233 /* else we got called for possible uprev */ 234 for (sec_idx = 0; sec_idx < ARRAY_SIZE(sec_rev_prop_list); sec_idx++) 235 if (sec_rev_prop_list[sec_idx].sec_rev == sec_rev) 236 break; 237 238 if (sec_idx == ARRAY_SIZE(sec_rev_prop_list)) { 239 puts("warning: unknown SEC revision number\n"); 240 return; 241 } 242 243 val = cpu_to_fdt32(sec_rev_prop_list[sec_idx].num_channels); 244 err = fdt_setprop(blob, crypto_node, "fsl,num-channels", &val, 4); 245 if (err < 0) 246 printf("WARNING: could not set crypto property: %s\n", 247 fdt_strerror(err)); 248 249 val = cpu_to_fdt32(sec_rev_prop_list[sec_idx].descriptor_types_mask); 250 err = fdt_setprop(blob, crypto_node, "fsl,descriptor-types-mask", &val, 4); 251 if (err < 0) 252 printf("WARNING: could not set crypto property: %s\n", 253 fdt_strerror(err)); 254 255 val = cpu_to_fdt32(sec_rev_prop_list[sec_idx].exec_units_mask); 256 err = fdt_setprop(blob, crypto_node, "fsl,exec-units-mask", &val, 4); 257 if (err < 0) 258 printf("WARNING: could not set crypto property: %s\n", 259 fdt_strerror(err)); 260 261 val = cpu_to_fdt32(sec_rev_prop_list[sec_idx].channel_fifo_len); 262 err = fdt_setprop(blob, crypto_node, "fsl,channel-fifo-len", &val, 4); 263 if (err < 0) 264 printf("WARNING: could not set crypto property: %s\n", 265 fdt_strerror(err)); 266 267 val = 0; 268 while (sec_idx >= 0) { 269 p = compat_strlist + val; 270 val += sprintf(p, "fsl,sec%d.%d", 271 (sec_rev_prop_list[sec_idx].sec_rev & 0xff00) >> 8, 272 sec_rev_prop_list[sec_idx].sec_rev & 0x00ff) + 1; 273 sec_idx--; 274 } 275 err = fdt_setprop(blob, crypto_node, "compatible", &compat_strlist, val); 276 if (err < 0) 277 printf("WARNING: could not set crypto property: %s\n", 278 fdt_strerror(err)); 279 } 280 #elif CONFIG_SYS_FSL_SEC_COMPAT >= 4 /* SEC4 */ 281 void fdt_fixup_crypto_node(void *blob, int sec_rev) 282 { 283 if (!sec_rev) 284 fdt_del_node_and_alias(blob, "crypto"); 285 } 286 #endif 287 288 int fdt_fixup_phy_connection(void *blob, int offset, phy_interface_t phyc) 289 { 290 return fdt_setprop_string(blob, offset, "phy-connection-type", 291 phy_string_for_interface(phyc)); 292 } 293 294 #ifdef CONFIG_SYS_SRIO 295 static inline void ft_disable_srio_port(void *blob, int srio_off, int port) 296 { 297 int off = fdt_node_offset_by_prop_value(blob, srio_off, 298 "cell-index", &port, 4); 299 if (off >= 0) { 300 off = fdt_setprop_string(blob, off, "status", "disabled"); 301 if (off > 0) 302 printf("WARNING unable to set status for fsl,srio " 303 "port %d: %s\n", port, fdt_strerror(off)); 304 } 305 } 306 307 static inline void ft_disable_rman(void *blob) 308 { 309 int off = fdt_node_offset_by_compatible(blob, -1, "fsl,rman"); 310 if (off >= 0) { 311 off = fdt_setprop_string(blob, off, "status", "disabled"); 312 if (off > 0) 313 printf("WARNING unable to set status for fsl,rman %s\n", 314 fdt_strerror(off)); 315 } 316 } 317 318 static inline void ft_disable_rmu(void *blob) 319 { 320 int off = fdt_node_offset_by_compatible(blob, -1, "fsl,srio-rmu"); 321 if (off >= 0) { 322 off = fdt_setprop_string(blob, off, "status", "disabled"); 323 if (off > 0) 324 printf("WARNING unable to set status for " 325 "fsl,srio-rmu %s\n", fdt_strerror(off)); 326 } 327 } 328 329 void ft_srio_setup(void *blob) 330 { 331 int srio1_used = 0, srio2_used = 0; 332 int srio_off; 333 334 /* search for srio node, if doesn't exist just return - nothing todo */ 335 srio_off = fdt_node_offset_by_compatible(blob, -1, "fsl,srio"); 336 if (srio_off < 0) 337 return ; 338 339 #ifdef CONFIG_SRIO1 340 if (is_serdes_configured(SRIO1)) 341 srio1_used = 1; 342 #endif 343 #ifdef CONFIG_SRIO2 344 if (is_serdes_configured(SRIO2)) 345 srio2_used = 1; 346 #endif 347 348 /* mark port1 disabled */ 349 if (!srio1_used) 350 ft_disable_srio_port(blob, srio_off, 1); 351 352 /* mark port2 disabled */ 353 if (!srio2_used) 354 ft_disable_srio_port(blob, srio_off, 2); 355 356 /* if both ports not used, disable controller, rmu and rman */ 357 if (!srio1_used && !srio2_used) { 358 fdt_setprop_string(blob, srio_off, "status", "disabled"); 359 360 ft_disable_rman(blob); 361 ft_disable_rmu(blob); 362 } 363 } 364 #endif 365