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_enet.h> 31 #include <asm/fsl_serdes.h> 32 33 #if defined(CONFIG_MP) && (defined(CONFIG_MPC85xx) || defined(CONFIG_MPC86xx)) 34 static int ft_del_cpuhandle(void *blob, int cpuhandle) 35 { 36 int off, ret = -FDT_ERR_NOTFOUND; 37 38 /* if we find a match, we'll delete at it which point the offsets are 39 * invalid so we start over from the beginning 40 */ 41 off = fdt_node_offset_by_prop_value(blob, -1, "cpu-handle", 42 &cpuhandle, 4); 43 while (off != -FDT_ERR_NOTFOUND) { 44 fdt_delprop(blob, off, "cpu-handle"); 45 ret = 1; 46 off = fdt_node_offset_by_prop_value(blob, -1, "cpu-handle", 47 &cpuhandle, 4); 48 } 49 50 return ret; 51 } 52 53 void ft_fixup_num_cores(void *blob) { 54 int off, num_cores, del_cores; 55 56 del_cores = 0; 57 num_cores = cpu_numcores(); 58 59 off = fdt_node_offset_by_prop_value(blob, -1, "device_type", "cpu", 4); 60 while (off != -FDT_ERR_NOTFOUND) { 61 u32 *reg = (u32 *)fdt_getprop(blob, off, "reg", 0); 62 63 if ((*reg > num_cores-1) || (is_core_disabled(*reg))) { 64 int ph = fdt_get_phandle(blob, off); 65 66 /* Delete the cpu node once there are no cpu handles */ 67 if (-FDT_ERR_NOTFOUND == ft_del_cpuhandle(blob, ph)) { 68 fdt_del_node(blob, off); 69 del_cores++; 70 } 71 /* either we deleted some cpu handles or the cpu node 72 * so we reset the offset back to the start since we 73 * can't trust the offsets anymore 74 */ 75 off = -1; 76 } 77 off = fdt_node_offset_by_prop_value(blob, off, 78 "device_type", "cpu", 4); 79 } 80 debug ("%x core system found\n", num_cores); 81 debug ("deleted %d extra core entry entries from device tree\n", 82 del_cores); 83 } 84 #endif /* defined(CONFIG_MPC85xx) || defined(CONFIG_MPC86xx) */ 85 86 #ifdef CONFIG_HAS_FSL_DR_USB 87 void fdt_fixup_dr_usb(void *blob, bd_t *bd) 88 { 89 char *mode; 90 char *type; 91 const char *compat = "fsl-usb2-dr"; 92 const char *prop_mode = "dr_mode"; 93 const char *prop_type = "phy_type"; 94 int node_offset; 95 int err; 96 97 mode = getenv("usb_dr_mode"); 98 type = getenv("usb_phy_type"); 99 if (!mode && !type) 100 return; 101 102 node_offset = fdt_node_offset_by_compatible(blob, 0, 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 (type) { 118 err = fdt_setprop(blob, node_offset, prop_type, type, 119 strlen(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 #endif /* CONFIG_HAS_FSL_DR_USB */ 126 127 /* 128 * update crypto node properties to a specified revision of the SEC 129 * called with sec_rev == 0 if not on an E processor 130 */ 131 #if CONFIG_SYS_FSL_SEC_COMPAT == 2 /* SEC 2.x/3.x */ 132 void fdt_fixup_crypto_node(void *blob, int sec_rev) 133 { 134 const struct sec_rev_prop { 135 u32 sec_rev; 136 u32 num_channels; 137 u32 channel_fifo_len; 138 u32 exec_units_mask; 139 u32 descriptor_types_mask; 140 } sec_rev_prop_list [] = { 141 { 0x0200, 4, 24, 0x07e, 0x01010ebf }, /* SEC 2.0 */ 142 { 0x0201, 4, 24, 0x0fe, 0x012b0ebf }, /* SEC 2.1 */ 143 { 0x0202, 1, 24, 0x04c, 0x0122003f }, /* SEC 2.2 */ 144 { 0x0204, 4, 24, 0x07e, 0x012b0ebf }, /* SEC 2.4 */ 145 { 0x0300, 4, 24, 0x9fe, 0x03ab0ebf }, /* SEC 3.0 */ 146 { 0x0301, 4, 24, 0xbfe, 0x03ab0ebf }, /* SEC 3.1 */ 147 { 0x0303, 4, 24, 0x97c, 0x03a30abf }, /* SEC 3.3 */ 148 }; 149 char compat_strlist[ARRAY_SIZE(sec_rev_prop_list) * 150 sizeof("fsl,secX.Y")]; 151 int crypto_node, sec_idx, err; 152 char *p; 153 u32 val; 154 155 /* locate crypto node based on lowest common compatible */ 156 crypto_node = fdt_node_offset_by_compatible(blob, -1, "fsl,sec2.0"); 157 if (crypto_node == -FDT_ERR_NOTFOUND) 158 return; 159 160 /* delete it if not on an E-processor */ 161 if (crypto_node > 0 && !sec_rev) { 162 fdt_del_node(blob, crypto_node); 163 return; 164 } 165 166 /* else we got called for possible uprev */ 167 for (sec_idx = 0; sec_idx < ARRAY_SIZE(sec_rev_prop_list); sec_idx++) 168 if (sec_rev_prop_list[sec_idx].sec_rev == sec_rev) 169 break; 170 171 if (sec_idx == ARRAY_SIZE(sec_rev_prop_list)) { 172 puts("warning: unknown SEC revision number\n"); 173 return; 174 } 175 176 val = cpu_to_fdt32(sec_rev_prop_list[sec_idx].num_channels); 177 err = fdt_setprop(blob, crypto_node, "fsl,num-channels", &val, 4); 178 if (err < 0) 179 printf("WARNING: could not set crypto property: %s\n", 180 fdt_strerror(err)); 181 182 val = cpu_to_fdt32(sec_rev_prop_list[sec_idx].descriptor_types_mask); 183 err = fdt_setprop(blob, crypto_node, "fsl,descriptor-types-mask", &val, 4); 184 if (err < 0) 185 printf("WARNING: could not set crypto property: %s\n", 186 fdt_strerror(err)); 187 188 val = cpu_to_fdt32(sec_rev_prop_list[sec_idx].exec_units_mask); 189 err = fdt_setprop(blob, crypto_node, "fsl,exec-units-mask", &val, 4); 190 if (err < 0) 191 printf("WARNING: could not set crypto property: %s\n", 192 fdt_strerror(err)); 193 194 val = cpu_to_fdt32(sec_rev_prop_list[sec_idx].channel_fifo_len); 195 err = fdt_setprop(blob, crypto_node, "fsl,channel-fifo-len", &val, 4); 196 if (err < 0) 197 printf("WARNING: could not set crypto property: %s\n", 198 fdt_strerror(err)); 199 200 val = 0; 201 while (sec_idx >= 0) { 202 p = compat_strlist + val; 203 val += sprintf(p, "fsl,sec%d.%d", 204 (sec_rev_prop_list[sec_idx].sec_rev & 0xff00) >> 8, 205 sec_rev_prop_list[sec_idx].sec_rev & 0x00ff) + 1; 206 sec_idx--; 207 } 208 err = fdt_setprop(blob, crypto_node, "compatible", &compat_strlist, val); 209 if (err < 0) 210 printf("WARNING: could not set crypto property: %s\n", 211 fdt_strerror(err)); 212 } 213 #elif CONFIG_SYS_FSL_SEC_COMPAT >= 4 /* SEC4 */ 214 void fdt_fixup_crypto_node(void *blob, int sec_rev) 215 { 216 if (!sec_rev) 217 fdt_del_node_and_alias(blob, "crypto"); 218 } 219 #endif 220 221 int fdt_fixup_phy_connection(void *blob, int offset, enum fsl_phy_enet_if phyc) 222 { 223 static const char *fsl_phy_enet_if_str[] = { 224 [MII] = "mii", 225 [RMII] = "rmii", 226 [GMII] = "gmii", 227 [RGMII] = "rgmii", 228 [RGMII_ID] = "rgmii-id", 229 [RGMII_RXID] = "rgmii-rxid", 230 [SGMII] = "sgmii", 231 [TBI] = "tbi", 232 [RTBI] = "rtbi", 233 [XAUI] = "xgmii", 234 [FSL_ETH_IF_NONE] = "", 235 }; 236 237 if (phyc > ARRAY_SIZE(fsl_phy_enet_if_str)) 238 return fdt_setprop_string(blob, offset, "phy-connection-type", ""); 239 240 return fdt_setprop_string(blob, offset, "phy-connection-type", 241 fsl_phy_enet_if_str[phyc]); 242 } 243 244 #ifdef CONFIG_SYS_SRIO 245 void ft_srio_setup(void *blob) 246 { 247 #ifdef CONFIG_SRIO1 248 if (!is_serdes_configured(SRIO1)) { 249 fdt_del_node_and_alias(blob, "rio0"); 250 } 251 #else 252 fdt_del_node_and_alias(blob, "rio0"); 253 #endif 254 #ifdef CONFIG_SRIO2 255 if (!is_serdes_configured(SRIO2)) { 256 fdt_del_node_and_alias(blob, "rio1"); 257 } 258 #else 259 fdt_del_node_and_alias(blob, "rio1"); 260 #endif 261 } 262 #endif 263