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 #ifdef CONFIG_HAS_FSL_DR_USB 34 #include <usb.h> 35 #endif 36 37 #if defined(CONFIG_MP) && (defined(CONFIG_MPC85xx) || defined(CONFIG_MPC86xx)) 38 static int ft_del_cpuhandle(void *blob, int cpuhandle) 39 { 40 int off, ret = -FDT_ERR_NOTFOUND; 41 42 /* if we find a match, we'll delete at it which point the offsets are 43 * invalid so we start over from the beginning 44 */ 45 off = fdt_node_offset_by_prop_value(blob, -1, "cpu-handle", 46 &cpuhandle, 4); 47 while (off != -FDT_ERR_NOTFOUND) { 48 fdt_delprop(blob, off, "cpu-handle"); 49 ret = 1; 50 off = fdt_node_offset_by_prop_value(blob, -1, "cpu-handle", 51 &cpuhandle, 4); 52 } 53 54 return ret; 55 } 56 57 void ft_fixup_num_cores(void *blob) { 58 int off, num_cores, del_cores; 59 60 del_cores = 0; 61 num_cores = cpu_numcores(); 62 63 off = fdt_node_offset_by_prop_value(blob, -1, "device_type", "cpu", 4); 64 while (off != -FDT_ERR_NOTFOUND) { 65 u32 *reg = (u32 *)fdt_getprop(blob, off, "reg", 0); 66 67 if ((*reg > num_cores-1) || (is_core_disabled(*reg))) { 68 int ph = fdt_get_phandle(blob, off); 69 70 /* Delete the cpu node once there are no cpu handles */ 71 if (-FDT_ERR_NOTFOUND == ft_del_cpuhandle(blob, ph)) { 72 fdt_del_node(blob, off); 73 del_cores++; 74 } 75 /* either we deleted some cpu handles or the cpu node 76 * so we reset the offset back to the start since we 77 * can't trust the offsets anymore 78 */ 79 off = -1; 80 } 81 off = fdt_node_offset_by_prop_value(blob, off, 82 "device_type", "cpu", 4); 83 } 84 debug ("%x core system found\n", num_cores); 85 debug ("deleted %d extra core entry entries from device tree\n", 86 del_cores); 87 } 88 #endif /* defined(CONFIG_MPC85xx) || defined(CONFIG_MPC86xx) */ 89 90 #ifdef CONFIG_HAS_FSL_DR_USB 91 static void fdt_fixup_usb_mode_phy_type(void *blob, const char *mode, 92 const char *phy_type) 93 { 94 const char *compat = "fsl-usb2-dr"; 95 const char *prop_mode = "dr_mode"; 96 const char *prop_type = "phy_type"; 97 static int start_offset = -1; 98 int node_offset; 99 int err; 100 101 node_offset = fdt_node_offset_by_compatible(blob, 102 start_offset, compat); 103 if (node_offset < 0) { 104 printf("WARNING: could not find compatible node %s: %s.\n", 105 compat, fdt_strerror(node_offset)); 106 return; 107 } 108 109 if (mode) { 110 err = fdt_setprop(blob, node_offset, prop_mode, mode, 111 strlen(mode) + 1); 112 if (err < 0) 113 printf("WARNING: could not set %s for %s: %s.\n", 114 prop_mode, compat, fdt_strerror(err)); 115 } 116 117 if (phy_type) { 118 err = fdt_setprop(blob, node_offset, prop_type, phy_type, 119 strlen(phy_type) + 1); 120 if (err < 0) 121 printf("WARNING: could not set %s for %s: %s.\n", 122 prop_type, compat, fdt_strerror(err)); 123 } 124 125 start_offset = node_offset; 126 } 127 128 void fdt_fixup_dr_usb(void *blob, bd_t *bd) 129 { 130 const char *modes[] = { "host", "peripheral", "otg" }; 131 const char *phys[] = { "ulpi", "umti" }; 132 const char *mode = NULL; 133 const char *phy_type = NULL; 134 char usb1_defined = 0; 135 char str[5]; 136 int i, j; 137 138 for (i = 1; i <= USB_MAX_DEVICE; 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 fdt_fixup_usb_mode_phy_type(blob, 158 modes[mode_idx], NULL); 159 if (phy_idx >= 0) 160 fdt_fixup_usb_mode_phy_type(blob, 161 NULL, phys[phy_idx]); 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 } else { 167 break; 168 } 169 } 170 if (!usb1_defined) { 171 mode = getenv("usb_dr_mode"); 172 phy_type = getenv("usb_phy_type"); 173 if (!mode && !phy_type) 174 return; 175 fdt_fixup_usb_mode_phy_type(blob, mode, phy_type); 176 } 177 } 178 #endif /* CONFIG_HAS_FSL_DR_USB */ 179 180 /* 181 * update crypto node properties to a specified revision of the SEC 182 * called with sec_rev == 0 if not on an E processor 183 */ 184 #if CONFIG_SYS_FSL_SEC_COMPAT == 2 /* SEC 2.x/3.x */ 185 void fdt_fixup_crypto_node(void *blob, int sec_rev) 186 { 187 const struct sec_rev_prop { 188 u32 sec_rev; 189 u32 num_channels; 190 u32 channel_fifo_len; 191 u32 exec_units_mask; 192 u32 descriptor_types_mask; 193 } sec_rev_prop_list [] = { 194 { 0x0200, 4, 24, 0x07e, 0x01010ebf }, /* SEC 2.0 */ 195 { 0x0201, 4, 24, 0x0fe, 0x012b0ebf }, /* SEC 2.1 */ 196 { 0x0202, 1, 24, 0x04c, 0x0122003f }, /* SEC 2.2 */ 197 { 0x0204, 4, 24, 0x07e, 0x012b0ebf }, /* SEC 2.4 */ 198 { 0x0300, 4, 24, 0x9fe, 0x03ab0ebf }, /* SEC 3.0 */ 199 { 0x0301, 4, 24, 0xbfe, 0x03ab0ebf }, /* SEC 3.1 */ 200 { 0x0303, 4, 24, 0x97c, 0x03a30abf }, /* SEC 3.3 */ 201 }; 202 char compat_strlist[ARRAY_SIZE(sec_rev_prop_list) * 203 sizeof("fsl,secX.Y")]; 204 int crypto_node, sec_idx, err; 205 char *p; 206 u32 val; 207 208 /* locate crypto node based on lowest common compatible */ 209 crypto_node = fdt_node_offset_by_compatible(blob, -1, "fsl,sec2.0"); 210 if (crypto_node == -FDT_ERR_NOTFOUND) 211 return; 212 213 /* delete it if not on an E-processor */ 214 if (crypto_node > 0 && !sec_rev) { 215 fdt_del_node(blob, crypto_node); 216 return; 217 } 218 219 /* else we got called for possible uprev */ 220 for (sec_idx = 0; sec_idx < ARRAY_SIZE(sec_rev_prop_list); sec_idx++) 221 if (sec_rev_prop_list[sec_idx].sec_rev == sec_rev) 222 break; 223 224 if (sec_idx == ARRAY_SIZE(sec_rev_prop_list)) { 225 puts("warning: unknown SEC revision number\n"); 226 return; 227 } 228 229 val = cpu_to_fdt32(sec_rev_prop_list[sec_idx].num_channels); 230 err = fdt_setprop(blob, crypto_node, "fsl,num-channels", &val, 4); 231 if (err < 0) 232 printf("WARNING: could not set crypto property: %s\n", 233 fdt_strerror(err)); 234 235 val = cpu_to_fdt32(sec_rev_prop_list[sec_idx].descriptor_types_mask); 236 err = fdt_setprop(blob, crypto_node, "fsl,descriptor-types-mask", &val, 4); 237 if (err < 0) 238 printf("WARNING: could not set crypto property: %s\n", 239 fdt_strerror(err)); 240 241 val = cpu_to_fdt32(sec_rev_prop_list[sec_idx].exec_units_mask); 242 err = fdt_setprop(blob, crypto_node, "fsl,exec-units-mask", &val, 4); 243 if (err < 0) 244 printf("WARNING: could not set crypto property: %s\n", 245 fdt_strerror(err)); 246 247 val = cpu_to_fdt32(sec_rev_prop_list[sec_idx].channel_fifo_len); 248 err = fdt_setprop(blob, crypto_node, "fsl,channel-fifo-len", &val, 4); 249 if (err < 0) 250 printf("WARNING: could not set crypto property: %s\n", 251 fdt_strerror(err)); 252 253 val = 0; 254 while (sec_idx >= 0) { 255 p = compat_strlist + val; 256 val += sprintf(p, "fsl,sec%d.%d", 257 (sec_rev_prop_list[sec_idx].sec_rev & 0xff00) >> 8, 258 sec_rev_prop_list[sec_idx].sec_rev & 0x00ff) + 1; 259 sec_idx--; 260 } 261 err = fdt_setprop(blob, crypto_node, "compatible", &compat_strlist, val); 262 if (err < 0) 263 printf("WARNING: could not set crypto property: %s\n", 264 fdt_strerror(err)); 265 } 266 #elif CONFIG_SYS_FSL_SEC_COMPAT >= 4 /* SEC4 */ 267 void fdt_fixup_crypto_node(void *blob, int sec_rev) 268 { 269 if (!sec_rev) 270 fdt_del_node_and_alias(blob, "crypto"); 271 } 272 #endif 273 274 int fdt_fixup_phy_connection(void *blob, int offset, phy_interface_t phyc) 275 { 276 return fdt_setprop_string(blob, offset, "phy-connection-type", 277 phy_string_for_interface(phyc)); 278 } 279 280 #ifdef CONFIG_SYS_SRIO 281 void ft_srio_setup(void *blob) 282 { 283 #ifdef CONFIG_SRIO1 284 if (!is_serdes_configured(SRIO1)) { 285 fdt_del_node_and_alias(blob, "rio0"); 286 } 287 #else 288 fdt_del_node_and_alias(blob, "rio0"); 289 #endif 290 #ifdef CONFIG_SRIO2 291 if (!is_serdes_configured(SRIO2)) { 292 fdt_del_node_and_alias(blob, "rio1"); 293 } 294 #else 295 fdt_del_node_and_alias(blob, "rio1"); 296 #endif 297 } 298 #endif 299