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 ((*reg > num_cores-1) || (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 void fdt_fixup_usb_mode_phy_type(void *blob, const char *mode, 91 const char *phy_type) 92 { 93 const char *compat = "fsl-usb2-dr"; 94 const char *prop_mode = "dr_mode"; 95 const char *prop_type = "phy_type"; 96 static int start_offset = -1; 97 int node_offset; 98 int err; 99 100 node_offset = fdt_node_offset_by_compatible(blob, 101 start_offset, compat); 102 if (node_offset < 0) { 103 printf("WARNING: could not find compatible node %s: %s.\n", 104 compat, fdt_strerror(node_offset)); 105 return; 106 } 107 108 if (mode) { 109 err = fdt_setprop(blob, node_offset, prop_mode, mode, 110 strlen(mode) + 1); 111 if (err < 0) 112 printf("WARNING: could not set %s for %s: %s.\n", 113 prop_mode, compat, fdt_strerror(err)); 114 } 115 116 if (phy_type) { 117 err = fdt_setprop(blob, node_offset, prop_type, phy_type, 118 strlen(phy_type) + 1); 119 if (err < 0) 120 printf("WARNING: could not set %s for %s: %s.\n", 121 prop_type, compat, fdt_strerror(err)); 122 } 123 124 start_offset = node_offset; 125 } 126 127 void fdt_fixup_dr_usb(void *blob, bd_t *bd) 128 { 129 const char *modes[] = { "host", "peripheral", "otg" }; 130 const char *phys[] = { "ulpi", "umti" }; 131 const char *mode = NULL; 132 const char *phy_type = NULL; 133 char usb1_defined = 0; 134 char str[5]; 135 int i, j; 136 137 for (i = 1; i <= FSL_MAX_NUM_USB_CTRLS; i++) { 138 int mode_idx = -1, phy_idx = -1; 139 sprintf(str, "%s%d", "usb", i); 140 if (hwconfig(str)) { 141 for (j = 0; j < sizeof(modes); j++) { 142 if (hwconfig_subarg_cmp(str, "dr_mode", 143 modes[j])) { 144 mode_idx = j; 145 break; 146 } 147 } 148 for (j = 0; j < sizeof(phys); j++) { 149 if (hwconfig_subarg_cmp(str, "phy_type", 150 phys[j])) { 151 phy_idx = j; 152 break; 153 } 154 } 155 if (mode_idx >= 0) 156 fdt_fixup_usb_mode_phy_type(blob, 157 modes[mode_idx], NULL); 158 if (phy_idx >= 0) 159 fdt_fixup_usb_mode_phy_type(blob, 160 NULL, phys[phy_idx]); 161 if (!strcmp(str, "usb1")) 162 usb1_defined = 1; 163 if (mode_idx < 0 && phy_idx < 0) 164 printf("WARNING: invalid phy or mode\n"); 165 } 166 } 167 if (!usb1_defined) { 168 mode = getenv("usb_dr_mode"); 169 phy_type = getenv("usb_phy_type"); 170 if (!mode && !phy_type) 171 return; 172 fdt_fixup_usb_mode_phy_type(blob, mode, phy_type); 173 } 174 } 175 #endif /* CONFIG_HAS_FSL_DR_USB */ 176 177 /* 178 * update crypto node properties to a specified revision of the SEC 179 * called with sec_rev == 0 if not on an E processor 180 */ 181 #if CONFIG_SYS_FSL_SEC_COMPAT == 2 /* SEC 2.x/3.x */ 182 void fdt_fixup_crypto_node(void *blob, int sec_rev) 183 { 184 const struct sec_rev_prop { 185 u32 sec_rev; 186 u32 num_channels; 187 u32 channel_fifo_len; 188 u32 exec_units_mask; 189 u32 descriptor_types_mask; 190 } sec_rev_prop_list [] = { 191 { 0x0200, 4, 24, 0x07e, 0x01010ebf }, /* SEC 2.0 */ 192 { 0x0201, 4, 24, 0x0fe, 0x012b0ebf }, /* SEC 2.1 */ 193 { 0x0202, 1, 24, 0x04c, 0x0122003f }, /* SEC 2.2 */ 194 { 0x0204, 4, 24, 0x07e, 0x012b0ebf }, /* SEC 2.4 */ 195 { 0x0300, 4, 24, 0x9fe, 0x03ab0ebf }, /* SEC 3.0 */ 196 { 0x0301, 4, 24, 0xbfe, 0x03ab0ebf }, /* SEC 3.1 */ 197 { 0x0303, 4, 24, 0x97c, 0x03a30abf }, /* SEC 3.3 */ 198 }; 199 char compat_strlist[ARRAY_SIZE(sec_rev_prop_list) * 200 sizeof("fsl,secX.Y")]; 201 int crypto_node, sec_idx, err; 202 char *p; 203 u32 val; 204 205 /* locate crypto node based on lowest common compatible */ 206 crypto_node = fdt_node_offset_by_compatible(blob, -1, "fsl,sec2.0"); 207 if (crypto_node == -FDT_ERR_NOTFOUND) 208 return; 209 210 /* delete it if not on an E-processor */ 211 if (crypto_node > 0 && !sec_rev) { 212 fdt_del_node(blob, crypto_node); 213 return; 214 } 215 216 /* else we got called for possible uprev */ 217 for (sec_idx = 0; sec_idx < ARRAY_SIZE(sec_rev_prop_list); sec_idx++) 218 if (sec_rev_prop_list[sec_idx].sec_rev == sec_rev) 219 break; 220 221 if (sec_idx == ARRAY_SIZE(sec_rev_prop_list)) { 222 puts("warning: unknown SEC revision number\n"); 223 return; 224 } 225 226 val = cpu_to_fdt32(sec_rev_prop_list[sec_idx].num_channels); 227 err = fdt_setprop(blob, crypto_node, "fsl,num-channels", &val, 4); 228 if (err < 0) 229 printf("WARNING: could not set crypto property: %s\n", 230 fdt_strerror(err)); 231 232 val = cpu_to_fdt32(sec_rev_prop_list[sec_idx].descriptor_types_mask); 233 err = fdt_setprop(blob, crypto_node, "fsl,descriptor-types-mask", &val, 4); 234 if (err < 0) 235 printf("WARNING: could not set crypto property: %s\n", 236 fdt_strerror(err)); 237 238 val = cpu_to_fdt32(sec_rev_prop_list[sec_idx].exec_units_mask); 239 err = fdt_setprop(blob, crypto_node, "fsl,exec-units-mask", &val, 4); 240 if (err < 0) 241 printf("WARNING: could not set crypto property: %s\n", 242 fdt_strerror(err)); 243 244 val = cpu_to_fdt32(sec_rev_prop_list[sec_idx].channel_fifo_len); 245 err = fdt_setprop(blob, crypto_node, "fsl,channel-fifo-len", &val, 4); 246 if (err < 0) 247 printf("WARNING: could not set crypto property: %s\n", 248 fdt_strerror(err)); 249 250 val = 0; 251 while (sec_idx >= 0) { 252 p = compat_strlist + val; 253 val += sprintf(p, "fsl,sec%d.%d", 254 (sec_rev_prop_list[sec_idx].sec_rev & 0xff00) >> 8, 255 sec_rev_prop_list[sec_idx].sec_rev & 0x00ff) + 1; 256 sec_idx--; 257 } 258 err = fdt_setprop(blob, crypto_node, "compatible", &compat_strlist, val); 259 if (err < 0) 260 printf("WARNING: could not set crypto property: %s\n", 261 fdt_strerror(err)); 262 } 263 #elif CONFIG_SYS_FSL_SEC_COMPAT >= 4 /* SEC4 */ 264 void fdt_fixup_crypto_node(void *blob, int sec_rev) 265 { 266 if (!sec_rev) 267 fdt_del_node_and_alias(blob, "crypto"); 268 } 269 #endif 270 271 int fdt_fixup_phy_connection(void *blob, int offset, phy_interface_t phyc) 272 { 273 return fdt_setprop_string(blob, offset, "phy-connection-type", 274 phy_string_for_interface(phyc)); 275 } 276 277 #ifdef CONFIG_SYS_SRIO 278 void ft_srio_setup(void *blob) 279 { 280 #ifdef CONFIG_SRIO1 281 if (!is_serdes_configured(SRIO1)) { 282 fdt_del_node_and_alias(blob, "rio0"); 283 } 284 #else 285 fdt_del_node_and_alias(blob, "rio0"); 286 #endif 287 #ifdef CONFIG_SRIO2 288 if (!is_serdes_configured(SRIO2)) { 289 fdt_del_node_and_alias(blob, "rio1"); 290 } 291 #else 292 fdt_del_node_and_alias(blob, "rio1"); 293 #endif 294 } 295 #endif 296