diff options
Diffstat (limited to 'board/keymile/common/common.c')
| -rw-r--r-- | board/keymile/common/common.c | 156 |
1 files changed, 156 insertions, 0 deletions
diff --git a/board/keymile/common/common.c b/board/keymile/common/common.c index 9adfefaf6..9be4c728b 100644 --- a/board/keymile/common/common.c +++ b/board/keymile/common/common.c @@ -32,6 +32,7 @@ #include <net.h> #include <netdev.h> #include <asm/io.h> +#include <linux/ctype.h> #if defined(CONFIG_OF_BOARD_SETUP) && defined(CONFIG_OF_LIBFDT) #include <libfdt.h> @@ -716,3 +717,158 @@ static int do_setboardid(cmd_tbl_t *cmdtp, int flag, int argc, U_BOOT_CMD(km_setboardid, 1, 0, do_setboardid, "setboardid", "read out bid and " "hwkey from IVM and set in environment"); + +/* + * command km_checkbidhwk + * if "boardid" and "hwkey" are not already set in the environment, do: + * if a "boardIdListHex" exists in the environment: + * - read ivm data for boardid and hwkey + * - compare each entry of the boardIdListHex with the + * IVM data: + * if match: + * set environment variables boardid, boardId, + * hwkey, hwKey to the found values + * both (boardid and boardId) are set because + * they might be used differently in the + * application and in the init scripts (?) + * return 0 in case of match, 1 if not match or error + */ +int do_checkboardidhwk(cmd_tbl_t *cmdtp, int flag, int argc, + char *const argv[]) +{ + unsigned long ivmbid = 0, ivmhwkey = 0; + unsigned long envbid = 0, envhwkey = 0; + char *p; + int verbose = argc > 1 && *argv[1] == 'v'; + int rc = 0; + + /* + * first read out the real inventory values, these values are + * already stored in the local hush variables + */ + p = get_local_var("IVM_BoardId"); + if (p == NULL) { + printf("can't get the IVM_Boardid\n"); + return 1; + } + rc = strict_strtoul(p, 16, &ivmbid); + + p = get_local_var("IVM_HWKey"); + if (p == NULL) { + printf("can't get the IVM_HWKey\n"); + return 1; + } + rc = strict_strtoul(p, 16, &ivmhwkey); + + if (!ivmbid || !ivmhwkey) { + printf("Error: IVM_BoardId and/or IVM_HWKey not set!\n"); + return rc; + } + + /* now try to read values from environment if available */ + p = getenv("boardid"); + if (p != NULL) + rc = strict_strtoul(p, 16, &envbid); + p = getenv("hwkey"); + if (p != NULL) + rc = strict_strtoul(p, 16, &envhwkey); + + if (rc != 0) { + printf("strict_strtoul returns error: %d", rc); + return rc; + } + + if (!envbid || !envhwkey) { + /* + * BoardId/HWkey not available in the environment, so try the + * environment variable for BoardId/HWkey list + */ + char *bidhwklist = getenv("boardIdListHex"); + + if (bidhwklist) { + int found = 0; + char *rest = bidhwklist; + char *endp; + + if (verbose) { + printf("IVM_BoardId: %ld, IVM_HWKey=%ld\n", + ivmbid, ivmhwkey); + printf("boardIdHwKeyList: %s\n", + bidhwklist); + } + while (!found) { + /* loop over each bid/hwkey pair in the list */ + unsigned long bid = 0; + unsigned long hwkey = 0; + + while (*rest && !isxdigit(*rest)) + rest++; + /* + * use simple_strtoul because we need &end and + * we know we got non numeric char at the end + */ + bid = simple_strtoul(rest, &endp, 16); + /* BoardId and HWkey are separated with a "_" */ + if (*endp == '_') { + rest = endp + 1; + /* + * use simple_strtoul because we need + * &end + */ + hwkey = simple_strtoul(rest, &endp, 16); + rest = endp; + while (*rest && !isxdigit(*rest)) + rest++; + } + if ((!bid) || (!hwkey)) { + /* end of list */ + break; + } + if (verbose) { + printf("trying bid=0x%lX, hwkey=%ld\n", + bid, hwkey); + } + /* + * Compare the values of the found entry in the + * list with the valid values which are stored + * in the inventory eeprom. If they are equal + * store the values in environment variables + * and save the environment. + * This can only happen once for the lifetime + * of a board, because once saved the function + * will never reach the while loop. + */ + if ((bid == ivmbid) && (hwkey == ivmhwkey)) { + char buf[10]; + + found = 1; + envbid = bid; + envhwkey = hwkey; + sprintf(buf, "%lx", bid); + setenv("boardid", buf); + sprintf(buf, "%lx", hwkey); + setenv("hwkey", buf); + saveenv(); + } + } /* end while( ! found ) */ + } + } + + /* compare now the values */ + if ((ivmbid == envbid) && (ivmhwkey == envhwkey)) { + printf("boardid=0x%3lX, hwkey=%ld\n", envbid, envhwkey); + rc = 0; /* match */ + } else { + printf("Error: env bId=0x%3lX, hwKey=%ld\n", envbid, envhwkey); + printf(" IVM bId=0x%3lX, hwKey=%ld\n", ivmbid, ivmhwkey); + rc = 1; /* don't match */ + } + return rc; +} + +U_BOOT_CMD(km_checkbidhwk, 2, 0, do_checkboardidhwk, + "check boardid and hwkey", + "[v]\n - check environment parameter "\ + "\"boardIdListHex\" against stored boardid and hwkey "\ + "from the IVM\n v: verbose output" +); |