1 /* 2 * Copyright 2009-2010 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 32 #if defined(CONFIG_MP) && (defined(CONFIG_MPC85xx) || defined(CONFIG_MPC86xx)) 33 static int ft_del_cpuhandle(void *blob, int cpuhandle) 34 { 35 int off, ret = -FDT_ERR_NOTFOUND; 36 37 /* if we find a match, we'll delete at it which point the offsets are 38 * invalid so we start over from the beginning 39 */ 40 off = fdt_node_offset_by_prop_value(blob, -1, "cpu-handle", 41 &cpuhandle, 4); 42 while (off != -FDT_ERR_NOTFOUND) { 43 fdt_delprop(blob, off, "cpu-handle"); 44 ret = 1; 45 off = fdt_node_offset_by_prop_value(blob, -1, "cpu-handle", 46 &cpuhandle, 4); 47 } 48 49 return ret; 50 } 51 52 void ft_fixup_num_cores(void *blob) { 53 int off, num_cores, del_cores; 54 55 del_cores = 0; 56 num_cores = cpu_numcores(); 57 58 off = fdt_node_offset_by_prop_value(blob, -1, "device_type", "cpu", 4); 59 while (off != -FDT_ERR_NOTFOUND) { 60 u32 *reg = (u32 *)fdt_getprop(blob, off, "reg", 0); 61 62 if ((*reg > num_cores-1) || (is_core_disabled(*reg))) { 63 int ph = fdt_get_phandle(blob, off); 64 65 /* Delete the cpu node once there are no cpu handles */ 66 if (-FDT_ERR_NOTFOUND == ft_del_cpuhandle(blob, ph)) { 67 fdt_del_node(blob, off); 68 del_cores++; 69 } 70 /* either we deleted some cpu handles or the cpu node 71 * so we reset the offset back to the start since we 72 * can't trust the offsets anymore 73 */ 74 off = -1; 75 } 76 off = fdt_node_offset_by_prop_value(blob, off, 77 "device_type", "cpu", 4); 78 } 79 debug ("%x core system found\n", num_cores); 80 debug ("deleted %d extra core entry entries from device tree\n", 81 del_cores); 82 } 83 #endif /* defined(CONFIG_MPC85xx) || defined(CONFIG_MPC86xx) */ 84 85 #ifdef CONFIG_HAS_FSL_DR_USB 86 void fdt_fixup_dr_usb(void *blob, bd_t *bd) 87 { 88 char *mode; 89 char *type; 90 const char *compat = "fsl-usb2-dr"; 91 const char *prop_mode = "dr_mode"; 92 const char *prop_type = "phy_type"; 93 int node_offset; 94 int err; 95 96 mode = getenv("usb_dr_mode"); 97 type = getenv("usb_phy_type"); 98 if (!mode && !type) 99 return; 100 101 node_offset = fdt_node_offset_by_compatible(blob, 0, 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 (type) { 117 err = fdt_setprop(blob, node_offset, prop_type, type, 118 strlen(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 #endif /* CONFIG_HAS_FSL_DR_USB */ 125 126 /* 127 * update crypto node properties to a specified revision of the SEC 128 * called with sec_rev == 0 if not on an E processor 129 */ 130 #if CONFIG_SYS_FSL_SEC_COMPAT == 2 /* SEC 2.x/3.x */ 131 void fdt_fixup_crypto_node(void *blob, int sec_rev) 132 { 133 const struct sec_rev_prop { 134 u32 sec_rev; 135 u32 num_channels; 136 u32 channel_fifo_len; 137 u32 exec_units_mask; 138 u32 descriptor_types_mask; 139 } sec_rev_prop_list [] = { 140 { 0x0200, 4, 24, 0x07e, 0x01010ebf }, /* SEC 2.0 */ 141 { 0x0201, 4, 24, 0x0fe, 0x012b0ebf }, /* SEC 2.1 */ 142 { 0x0202, 1, 24, 0x04c, 0x0122003f }, /* SEC 2.2 */ 143 { 0x0204, 4, 24, 0x07e, 0x012b0ebf }, /* SEC 2.4 */ 144 { 0x0300, 4, 24, 0x9fe, 0x03ab0ebf }, /* SEC 3.0 */ 145 { 0x0301, 4, 24, 0xbfe, 0x03ab0ebf }, /* SEC 3.1 */ 146 { 0x0303, 4, 24, 0x97c, 0x03a30abf }, /* SEC 3.3 */ 147 }; 148 char compat_strlist[ARRAY_SIZE(sec_rev_prop_list) * 149 sizeof("fsl,secX.Y")]; 150 int crypto_node, sec_idx, err; 151 char *p; 152 u32 val; 153 154 /* locate crypto node based on lowest common compatible */ 155 crypto_node = fdt_node_offset_by_compatible(blob, -1, "fsl,sec2.0"); 156 if (crypto_node == -FDT_ERR_NOTFOUND) 157 return; 158 159 /* delete it if not on an E-processor */ 160 if (crypto_node > 0 && !sec_rev) { 161 fdt_del_node(blob, crypto_node); 162 return; 163 } 164 165 /* else we got called for possible uprev */ 166 for (sec_idx = 0; sec_idx < ARRAY_SIZE(sec_rev_prop_list); sec_idx++) 167 if (sec_rev_prop_list[sec_idx].sec_rev == sec_rev) 168 break; 169 170 if (sec_idx == ARRAY_SIZE(sec_rev_prop_list)) { 171 puts("warning: unknown SEC revision number\n"); 172 return; 173 } 174 175 val = cpu_to_fdt32(sec_rev_prop_list[sec_idx].num_channels); 176 err = fdt_setprop(blob, crypto_node, "fsl,num-channels", &val, 4); 177 if (err < 0) 178 printf("WARNING: could not set crypto property: %s\n", 179 fdt_strerror(err)); 180 181 val = cpu_to_fdt32(sec_rev_prop_list[sec_idx].descriptor_types_mask); 182 err = fdt_setprop(blob, crypto_node, "fsl,descriptor-types-mask", &val, 4); 183 if (err < 0) 184 printf("WARNING: could not set crypto property: %s\n", 185 fdt_strerror(err)); 186 187 val = cpu_to_fdt32(sec_rev_prop_list[sec_idx].exec_units_mask); 188 err = fdt_setprop(blob, crypto_node, "fsl,exec-units-mask", &val, 4); 189 if (err < 0) 190 printf("WARNING: could not set crypto property: %s\n", 191 fdt_strerror(err)); 192 193 val = cpu_to_fdt32(sec_rev_prop_list[sec_idx].channel_fifo_len); 194 err = fdt_setprop(blob, crypto_node, "fsl,channel-fifo-len", &val, 4); 195 if (err < 0) 196 printf("WARNING: could not set crypto property: %s\n", 197 fdt_strerror(err)); 198 199 val = 0; 200 while (sec_idx >= 0) { 201 p = compat_strlist + val; 202 val += sprintf(p, "fsl,sec%d.%d", 203 (sec_rev_prop_list[sec_idx].sec_rev & 0xff00) >> 8, 204 sec_rev_prop_list[sec_idx].sec_rev & 0x00ff) + 1; 205 sec_idx--; 206 } 207 err = fdt_setprop(blob, crypto_node, "compatible", &compat_strlist, val); 208 if (err < 0) 209 printf("WARNING: could not set crypto property: %s\n", 210 fdt_strerror(err)); 211 } 212 #elif CONFIG_SYS_FSL_SEC_COMPAT >= 4 /* SEC4 */ 213 void fdt_fixup_crypto_node(void *blob, int sec_rev) 214 { 215 if (!sec_rev) 216 fdt_del_node_and_alias(blob, "crypto"); 217 } 218 #endif 219 220 int fdt_fixup_phy_connection(void *blob, int offset, enum fsl_phy_enet_if phyc) 221 { 222 static const char *fsl_phy_enet_if_str[] = { 223 [MII] = "mii", 224 [RMII] = "rmii", 225 [GMII] = "gmii", 226 [RGMII] = "rgmii", 227 [RGMII_ID] = "rgmii-id", 228 [RGMII_RXID] = "rgmii-rxid", 229 [SGMII] = "sgmii", 230 [TBI] = "tbi", 231 [RTBI] = "rtbi", 232 [XAUI] = "xgmii", 233 [FSL_ETH_IF_NONE] = "", 234 }; 235 236 if (phyc > ARRAY_SIZE(fsl_phy_enet_if_str)) 237 return fdt_setprop_string(blob, offset, "phy-connection-type", ""); 238 239 return fdt_setprop_string(blob, offset, "phy-connection-type", 240 fsl_phy_enet_if_str[phyc]); 241 } 242