1 /* 2 * Copyright 2009-2011 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 #ifdef CONFIG_HAS_FSL_DR_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 = "fsl-usb2-dr"; 94 const char *prop_mode = "dr_mode"; 95 const char *prop_type = "phy_type"; 96 int node_offset; 97 int err; 98 99 node_offset = fdt_node_offset_by_compatible(blob, 100 start_offset, compat); 101 if (node_offset < 0) { 102 printf("WARNING: could not find compatible node %s: %s.\n", 103 compat, fdt_strerror(node_offset)); 104 return -1; 105 } 106 107 if (mode) { 108 err = fdt_setprop(blob, node_offset, prop_mode, mode, 109 strlen(mode) + 1); 110 if (err < 0) 111 printf("WARNING: could not set %s for %s: %s.\n", 112 prop_mode, compat, fdt_strerror(err)); 113 } 114 115 if (phy_type) { 116 err = fdt_setprop(blob, node_offset, prop_type, phy_type, 117 strlen(phy_type) + 1); 118 if (err < 0) 119 printf("WARNING: could not set %s for %s: %s.\n", 120 prop_type, compat, fdt_strerror(err)); 121 } 122 123 return node_offset; 124 } 125 126 void fdt_fixup_dr_usb(void *blob, bd_t *bd) 127 { 128 const char *modes[] = { "host", "peripheral", "otg" }; 129 const char *phys[] = { "ulpi", "utmi" }; 130 const char *mode = NULL; 131 const char *phy_type = NULL; 132 char usb1_defined = 0; 133 int usb_mode_off = -1; 134 int usb_phy_off = -1; 135 char str[5]; 136 int i, j; 137 138 for (i = 1; i <= FSL_MAX_NUM_USB_CTRLS; i++) { 139 int mode_idx = -1, phy_idx = -1; 140 sprintf(str, "%s%d", "usb", i); 141 if (hwconfig(str)) { 142 for (j = 0; j < sizeof(modes); j++) { 143 if (hwconfig_subarg_cmp(str, "dr_mode", 144 modes[j])) { 145 mode_idx = j; 146 break; 147 } 148 } 149 for (j = 0; j < sizeof(phys); j++) { 150 if (hwconfig_subarg_cmp(str, "phy_type", 151 phys[j])) { 152 phy_idx = j; 153 break; 154 } 155 } 156 if (mode_idx >= 0) 157 usb_mode_off = fdt_fixup_usb_mode_phy_type(blob, 158 modes[mode_idx], NULL, usb_mode_off); 159 if (phy_idx >= 0) 160 usb_phy_off = fdt_fixup_usb_mode_phy_type(blob, 161 NULL, phys[phy_idx], usb_phy_off); 162 if (!strcmp(str, "usb1")) 163 usb1_defined = 1; 164 if (mode_idx < 0 && phy_idx < 0) 165 printf("WARNING: invalid phy or mode\n"); 166 } 167 } 168 if (!usb1_defined) { 169 int usb_off = -1; 170 mode = getenv("usb_dr_mode"); 171 phy_type = getenv("usb_phy_type"); 172 if (!mode && !phy_type) 173 return; 174 fdt_fixup_usb_mode_phy_type(blob, mode, phy_type, usb_off); 175 } 176 } 177 #endif /* CONFIG_HAS_FSL_DR_USB */ 178 179 /* 180 * update crypto node properties to a specified revision of the SEC 181 * called with sec_rev == 0 if not on an E processor 182 */ 183 #if CONFIG_SYS_FSL_SEC_COMPAT == 2 /* SEC 2.x/3.x */ 184 void fdt_fixup_crypto_node(void *blob, int sec_rev) 185 { 186 const struct sec_rev_prop { 187 u32 sec_rev; 188 u32 num_channels; 189 u32 channel_fifo_len; 190 u32 exec_units_mask; 191 u32 descriptor_types_mask; 192 } sec_rev_prop_list [] = { 193 { 0x0200, 4, 24, 0x07e, 0x01010ebf }, /* SEC 2.0 */ 194 { 0x0201, 4, 24, 0x0fe, 0x012b0ebf }, /* SEC 2.1 */ 195 { 0x0202, 1, 24, 0x04c, 0x0122003f }, /* SEC 2.2 */ 196 { 0x0204, 4, 24, 0x07e, 0x012b0ebf }, /* SEC 2.4 */ 197 { 0x0300, 4, 24, 0x9fe, 0x03ab0ebf }, /* SEC 3.0 */ 198 { 0x0301, 4, 24, 0xbfe, 0x03ab0ebf }, /* SEC 3.1 */ 199 { 0x0303, 4, 24, 0x97c, 0x03a30abf }, /* SEC 3.3 */ 200 }; 201 char compat_strlist[ARRAY_SIZE(sec_rev_prop_list) * 202 sizeof("fsl,secX.Y")]; 203 int crypto_node, sec_idx, err; 204 char *p; 205 u32 val; 206 207 /* locate crypto node based on lowest common compatible */ 208 crypto_node = fdt_node_offset_by_compatible(blob, -1, "fsl,sec2.0"); 209 if (crypto_node == -FDT_ERR_NOTFOUND) 210 return; 211 212 /* delete it if not on an E-processor */ 213 if (crypto_node > 0 && !sec_rev) { 214 fdt_del_node(blob, crypto_node); 215 return; 216 } 217 218 /* else we got called for possible uprev */ 219 for (sec_idx = 0; sec_idx < ARRAY_SIZE(sec_rev_prop_list); sec_idx++) 220 if (sec_rev_prop_list[sec_idx].sec_rev == sec_rev) 221 break; 222 223 if (sec_idx == ARRAY_SIZE(sec_rev_prop_list)) { 224 puts("warning: unknown SEC revision number\n"); 225 return; 226 } 227 228 val = cpu_to_fdt32(sec_rev_prop_list[sec_idx].num_channels); 229 err = fdt_setprop(blob, crypto_node, "fsl,num-channels", &val, 4); 230 if (err < 0) 231 printf("WARNING: could not set crypto property: %s\n", 232 fdt_strerror(err)); 233 234 val = cpu_to_fdt32(sec_rev_prop_list[sec_idx].descriptor_types_mask); 235 err = fdt_setprop(blob, crypto_node, "fsl,descriptor-types-mask", &val, 4); 236 if (err < 0) 237 printf("WARNING: could not set crypto property: %s\n", 238 fdt_strerror(err)); 239 240 val = cpu_to_fdt32(sec_rev_prop_list[sec_idx].exec_units_mask); 241 err = fdt_setprop(blob, crypto_node, "fsl,exec-units-mask", &val, 4); 242 if (err < 0) 243 printf("WARNING: could not set crypto property: %s\n", 244 fdt_strerror(err)); 245 246 val = cpu_to_fdt32(sec_rev_prop_list[sec_idx].channel_fifo_len); 247 err = fdt_setprop(blob, crypto_node, "fsl,channel-fifo-len", &val, 4); 248 if (err < 0) 249 printf("WARNING: could not set crypto property: %s\n", 250 fdt_strerror(err)); 251 252 val = 0; 253 while (sec_idx >= 0) { 254 p = compat_strlist + val; 255 val += sprintf(p, "fsl,sec%d.%d", 256 (sec_rev_prop_list[sec_idx].sec_rev & 0xff00) >> 8, 257 sec_rev_prop_list[sec_idx].sec_rev & 0x00ff) + 1; 258 sec_idx--; 259 } 260 err = fdt_setprop(blob, crypto_node, "compatible", &compat_strlist, val); 261 if (err < 0) 262 printf("WARNING: could not set crypto property: %s\n", 263 fdt_strerror(err)); 264 } 265 #elif CONFIG_SYS_FSL_SEC_COMPAT >= 4 /* SEC4 */ 266 void fdt_fixup_crypto_node(void *blob, int sec_rev) 267 { 268 if (!sec_rev) 269 fdt_del_node_and_alias(blob, "crypto"); 270 } 271 #endif 272 273 int fdt_fixup_phy_connection(void *blob, int offset, phy_interface_t phyc) 274 { 275 return fdt_setprop_string(blob, offset, "phy-connection-type", 276 phy_string_for_interface(phyc)); 277 } 278 279 #ifdef CONFIG_SYS_SRIO 280 static inline void ft_disable_srio_port(void *blob, int srio_off, int port) 281 { 282 int off = fdt_node_offset_by_prop_value(blob, srio_off, 283 "cell-index", &port, 4); 284 if (off >= 0) { 285 off = fdt_setprop_string(blob, off, "status", "disabled"); 286 if (off > 0) 287 printf("WARNING unable to set status for fsl,srio " 288 "port %d: %s\n", port, fdt_strerror(off)); 289 } 290 } 291 292 static inline void ft_disable_rman(void *blob) 293 { 294 int off = fdt_node_offset_by_compatible(blob, -1, "fsl,rman"); 295 if (off >= 0) { 296 off = fdt_setprop_string(blob, off, "status", "disabled"); 297 if (off > 0) 298 printf("WARNING unable to set status for fsl,rman %s\n", 299 fdt_strerror(off)); 300 } 301 } 302 303 static inline void ft_disable_rmu(void *blob) 304 { 305 int off = fdt_node_offset_by_compatible(blob, -1, "fsl,srio-rmu"); 306 if (off >= 0) { 307 off = fdt_setprop_string(blob, off, "status", "disabled"); 308 if (off > 0) 309 printf("WARNING unable to set status for " 310 "fsl,srio-rmu %s\n", fdt_strerror(off)); 311 } 312 } 313 314 void ft_srio_setup(void *blob) 315 { 316 int srio1_used = 0, srio2_used = 0; 317 int srio_off; 318 319 /* search for srio node, if doesn't exist just return - nothing todo */ 320 srio_off = fdt_node_offset_by_compatible(blob, -1, "fsl,srio"); 321 if (srio_off < 0) 322 return ; 323 324 #ifdef CONFIG_SRIO1 325 if (is_serdes_configured(SRIO1)) 326 srio1_used = 1; 327 #endif 328 #ifdef CONFIG_SRIO2 329 if (is_serdes_configured(SRIO2)) 330 srio2_used = 1; 331 #endif 332 333 /* mark port1 disabled */ 334 if (!srio1_used) 335 ft_disable_srio_port(blob, srio_off, 1); 336 337 /* mark port2 disabled */ 338 if (!srio2_used) 339 ft_disable_srio_port(blob, srio_off, 2); 340 341 /* if both ports not used, disable controller, rmu and rman */ 342 if (!srio1_used && !srio2_used) { 343 fdt_setprop_string(blob, srio_off, "status", "disabled"); 344 345 ft_disable_rman(blob); 346 ft_disable_rmu(blob); 347 } 348 } 349 #endif 350