1 /* 2 * Commands to deal with Synology specifics. 3 * 4 * Copyright (C) 2015 Phil Sutter <phil@nwl.cc> 5 * 6 * SPDX-License-Identifier: GPL-2.0+ 7 */ 8 9 #include <common.h> 10 #include <div64.h> 11 #include <spi.h> 12 #include <spi_flash.h> 13 #include <linux/mtd/mtd.h> 14 15 #include <asm/io.h> 16 #include "../drivers/ddr/marvell/axp/ddr3_init.h" 17 18 #define ETH_ALEN 6 19 #define ETHADDR_MAX 4 20 #define SYNO_SN_TAG "SN=" 21 #define SYNO_CHKSUM_TAG "CHK=" 22 23 24 static int do_syno_populate(int argc, char * const argv[]) 25 { 26 unsigned int bus = CONFIG_SF_DEFAULT_BUS; 27 unsigned int cs = CONFIG_SF_DEFAULT_CS; 28 unsigned int speed = CONFIG_SF_DEFAULT_SPEED; 29 unsigned int mode = CONFIG_SF_DEFAULT_MODE; 30 struct spi_flash *flash; 31 unsigned long addr = 0x80000; /* XXX: parameterize this? */ 32 loff_t offset = 0x007d0000; 33 loff_t len = 0x00010000; 34 char *buf, *bufp; 35 char var[128]; 36 char val[128]; 37 int ret, n; 38 39 /* XXX: arg parsing to select flash here? */ 40 41 flash = spi_flash_probe(bus, cs, speed, mode); 42 if (!flash) { 43 printf("Failed to initialize SPI flash at %u:%u\n", bus, cs); 44 return 1; 45 } 46 47 buf = map_physmem(addr, len, MAP_WRBACK); 48 if (!buf) { 49 puts("Failed to map physical memory\n"); 50 return 1; 51 } 52 53 ret = spi_flash_read(flash, offset, len, buf); 54 if (ret) { 55 puts("Failed to read from SPI flash\n"); 56 goto out_unmap; 57 } 58 59 for (n = 0; n < ETHADDR_MAX; n++) { 60 char ethaddr[ETH_ALEN]; 61 int i, sum = 0; 62 unsigned char csum = 0; 63 64 for (i = 0, bufp = buf + n * 7; i < ETH_ALEN; i++) { 65 sum += bufp[i]; 66 csum += bufp[i]; 67 ethaddr[i] = bufp[i]; 68 } 69 if (!sum) /* MAC address empty */ 70 continue; 71 if (csum != bufp[i]) { /* seventh byte is checksum value */ 72 printf("Invalid MAC address for interface %d!\n", n); 73 continue; 74 } 75 if (n == 0) 76 sprintf(var, "ethaddr"); 77 else 78 sprintf(var, "eth%daddr", n); 79 snprintf(val, sizeof(val) - 1, 80 "%02x:%02x:%02x:%02x:%02x:%02x", 81 ethaddr[0], ethaddr[1], ethaddr[2], 82 ethaddr[3], ethaddr[4], ethaddr[5]); 83 printf("parsed %s = %s\n", var, val); 84 env_set(var, val); 85 } 86 if (!strncmp(buf + 32, SYNO_SN_TAG, strlen(SYNO_SN_TAG))) { 87 char *snp, *csump; 88 int csum = 0; 89 unsigned long c; 90 91 snp = bufp = buf + 32 + strlen(SYNO_SN_TAG); 92 for (n = 0; bufp[n] && bufp[n] != ','; n++) 93 csum += bufp[n]; 94 bufp[n] = '\0'; 95 96 /* should come right after, but you never know */ 97 bufp = strstr(bufp + n + 1, SYNO_CHKSUM_TAG); 98 if (!bufp) { 99 printf("Serial number checksum tag missing!\n"); 100 goto out_unmap; 101 } 102 103 csump = bufp += strlen(SYNO_CHKSUM_TAG); 104 for (n = 0; bufp[n] && bufp[n] != ','; n++) 105 ; 106 bufp[n] = '\0'; 107 108 if (strict_strtoul(csump, 10, &c) || c != csum) { 109 puts("Invalid serial number found!\n"); 110 ret = 1; 111 goto out_unmap; 112 } 113 printf("parsed SN = %s\n", snp); 114 env_set("SN", snp); 115 } else { /* old style format */ 116 unsigned char csum = 0; 117 118 for (n = 0, bufp = buf + 32; n < 10; n++) 119 csum += bufp[n]; 120 121 if (csum != bufp[n]) { 122 puts("Invalid serial number found!\n"); 123 ret = 1; 124 goto out_unmap; 125 } 126 bufp[n] = '\0'; 127 printf("parsed SN = %s\n", buf + 32); 128 env_set("SN", buf + 32); 129 } 130 out_unmap: 131 unmap_physmem(buf, len); 132 return ret; 133 } 134 135 /* map bit position to function in POWER_MNG_CTRL_REG */ 136 static const char * const pwr_mng_bit_func[] = { 137 "audio", 138 "ge3", "ge2", "ge1", "ge0", 139 "pcie00", "pcie01", "pcie02", "pcie03", 140 "pcie10", "pcie11", "pcie12", "pcie13", 141 "bp", 142 "sata0_link", "sata0_core", 143 "lcd", 144 "sdio", 145 "usb0", "usb1", "usb2", 146 "idma", "xor0", "crypto", 147 NULL, 148 "tdm", 149 "pcie20", "pcie30", 150 "xor1", 151 "sata1_link", "sata1_core", 152 NULL, 153 }; 154 155 static int do_syno_clk_gate(int argc, char * const argv[]) 156 { 157 u32 pwr_mng_ctrl_reg = reg_read(POWER_MNG_CTRL_REG); 158 const char *func, *state; 159 int i, val; 160 161 if (argc < 2) 162 return -1; 163 164 if (!strcmp(argv[1], "get")) { 165 puts("Clock Gating:\n"); 166 for (i = 0; i < 32; i++) { 167 func = pwr_mng_bit_func[i]; 168 if (!func) 169 continue; 170 state = pwr_mng_ctrl_reg & (1 << i) ? "ON" : "OFF"; 171 printf("%s:\t\t%s\n", func, state); 172 } 173 return 0; 174 } 175 if (argc < 4) 176 return -1; 177 if (!strcmp(argv[1], "set")) { 178 func = argv[2]; 179 state = argv[3]; 180 for (i = 0; i < 32; i++) { 181 if (!pwr_mng_bit_func[i]) 182 continue; 183 if (!strcmp(func, pwr_mng_bit_func[i])) 184 break; 185 } 186 if (i == 32) { 187 printf("Error: name '%s' not known\n", func); 188 return -1; 189 } 190 val = state[0] != '0'; 191 pwr_mng_ctrl_reg |= (val << i); 192 pwr_mng_ctrl_reg &= ~(!val << i); 193 reg_write(POWER_MNG_CTRL_REG, pwr_mng_ctrl_reg); 194 } 195 return 0; 196 } 197 198 static int do_syno(cmd_tbl_t *cmdtp, int flag, 199 int argc, char * const argv[]) 200 { 201 const char *cmd; 202 int ret = 0; 203 204 if (argc < 2) 205 goto usage; 206 207 cmd = argv[1]; 208 --argc; 209 ++argv; 210 211 if (!strcmp(cmd, "populate_env")) 212 ret = do_syno_populate(argc, argv); 213 else if (!strcmp(cmd, "clk_gate")) 214 ret = do_syno_clk_gate(argc, argv); 215 216 if (ret != -1) 217 return ret; 218 usage: 219 return CMD_RET_USAGE; 220 } 221 222 U_BOOT_CMD( 223 syno, 5, 1, do_syno, 224 "Synology specific commands", 225 "populate_env - Read vendor data from SPI flash into environment\n" 226 "clk_gate (get|set name 1|0) - Manage clock gating\n" 227 ); 228