From 4326b454744b47777f6575d62e84622d941da5ea Mon Sep 17 00:00:00 2001 From: Masahiro Yamada Date: Fri, 14 Apr 2017 10:54:59 +0900 Subject: cmd: remove Blackfin specific commands These commands have no user since commit ea3310e8aafa ("Blackfin: Remove"). Signed-off-by: Masahiro Yamada Reviewed-by: Simon Glass --- cmd/otp.c | 228 -------------------------------------------------------------- 1 file changed, 228 deletions(-) delete mode 100644 cmd/otp.c (limited to 'cmd/otp.c') diff --git a/cmd/otp.c b/cmd/otp.c deleted file mode 100644 index 10c1475c5a..0000000000 --- a/cmd/otp.c +++ /dev/null @@ -1,228 +0,0 @@ -/* - * cmd_otp.c - interface to Blackfin on-chip One-Time-Programmable memory - * - * Copyright (c) 2007-2008 Analog Devices Inc. - * - * Licensed under the GPL-2 or later. - */ - -/* There are 512 128-bit "pages" (0x000 through 0x1FF). - * The pages are accessable as 64-bit "halfpages" (an upper and lower half). - * The pages are not part of the memory map. There is an OTP controller which - * handles scanning in/out of bits. While access is done through OTP MMRs, - * the bootrom provides C-callable helper functions to handle the interaction. - */ - -#include -#include -#include -#include - -#include -#include -#include - -static const char *otp_strerror(uint32_t err) -{ - switch (err) { - case 0: return "no error"; - case OTP_WRITE_ERROR: return "OTP fuse write error"; - case OTP_READ_ERROR: return "OTP fuse read error"; - case OTP_ACC_VIO_ERROR: return "invalid OTP address"; - case OTP_DATA_MULT_ERROR: return "multiple bad bits detected"; - case OTP_ECC_MULT_ERROR: return "error in ECC bits"; - case OTP_PREV_WR_ERROR: return "space already written"; - case OTP_DATA_SB_WARN: return "single bad bit in half page"; - case OTP_ECC_SB_WARN: return "single bad bit in ECC"; - default: return "unknown error"; - } -} - -#define lowup(x) ((x) % 2 ? "upper" : "lower") - -static int check_voltage(void) -{ - /* Make sure voltage limits are within datasheet spec */ - uint16_t vr_ctl = bfin_read_VR_CTL(); - -#ifdef __ADSPBF54x__ - /* 0.9V <= VDDINT <= 1.1V */ - if ((vr_ctl & 0xc) && (vr_ctl & 0xc0) == 0xc0) - return 1; -#else - /* for the parts w/out qualification yet */ - (void)vr_ctl; -#endif - - return 0; -} - -static void set_otp_timing(bool write) -{ - static uint32_t timing; - if (!timing) { - uint32_t tp1, tp2, tp3; - /* OTP_TP1 = 1000 / sclk_period (in nanoseconds) - * OTP_TP1 = 1000 / (1 / get_sclk() * 10^9) - * OTP_TP1 = (1000 * get_sclk()) / 10^9 - * OTP_TP1 = get_sclk() / 10^6 - */ - tp1 = get_sclk() / 1000000; - /* OTP_TP2 = 400 / (2 * sclk_period) - * OTP_TP2 = 400 / (2 * 1 / get_sclk() * 10^9) - * OTP_TP2 = (400 * get_sclk()) / (2 * 10^9) - * OTP_TP2 = (2 * get_sclk()) / 10^7 - */ - tp2 = (2 * get_sclk() / 10000000) << 8; - /* OTP_TP3 = magic constant */ - tp3 = (0x1401) << 15; - timing = tp1 | tp2 | tp3; - } - - bfrom_OtpCommand(OTP_INIT, write ? timing : timing & ~(-1 << 15)); -} - -int do_otp(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) -{ - char *cmd; - uint32_t ret, base_flags; - bool prompt_user, force_read; - uint32_t (*otp_func)(uint32_t page, uint32_t flags, uint64_t *page_content); - - if (argc < 4) { - usage: - return CMD_RET_USAGE; - } - - prompt_user = false; - base_flags = 0; - cmd = argv[1]; - if (!strcmp(cmd, "read")) - otp_func = bfrom_OtpRead; - else if (!strcmp(cmd, "dump")) { - otp_func = bfrom_OtpRead; - force_read = true; - } else if (!strcmp(cmd, "write")) { - otp_func = bfrom_OtpWrite; - base_flags = OTP_CHECK_FOR_PREV_WRITE; - if (!strcmp(argv[2], "--force")) { - argv++; - --argc; - } else - prompt_user = false; - } else if (!strcmp(cmd, "lock")) { - if (argc != 4) - goto usage; - otp_func = bfrom_OtpWrite; - base_flags = OTP_LOCK; - } else - goto usage; - - uint64_t *addr = (uint64_t *)simple_strtoul(argv[2], NULL, 16); - uint32_t page = simple_strtoul(argv[3], NULL, 16); - uint32_t flags; - size_t i, count; - ulong half; - - if (argc > 4) - count = simple_strtoul(argv[4], NULL, 16); - else - count = 2; - - if (argc > 5) { - half = simple_strtoul(argv[5], NULL, 16); - if (half != 0 && half != 1) { - puts("Error: 'half' can only be '0' or '1'\n"); - goto usage; - } - } else - half = 0; - - /* "otp lock" has slightly different semantics */ - if (base_flags & OTP_LOCK) { - count = page; - page = (uint32_t)addr; - addr = NULL; - } - - /* do to the nature of OTP, make sure users are sure */ - if (prompt_user) { - printf( - "Writing one time programmable memory\n" - "Make sure your operating voltages and temperature are within spec\n" - " source address: 0x%p\n" - " OTP destination: %s page 0x%03X - %s page 0x%03lX\n" - " number to write: %lu halfpages\n" - " type \"YES\" (no quotes) to confirm: ", - addr, - lowup(half), page, - lowup(half + count - 1), page + (half + count - 1) / 2, - half + count - ); - if (!confirm_yesno()) { - printf(" Aborting\n"); - return 1; - } - } - - printf("OTP memory %s: addr 0x%p page 0x%03X count %zu ... ", - cmd, addr, page, count); - - set_otp_timing(otp_func == bfrom_OtpWrite); - if (otp_func == bfrom_OtpWrite && check_voltage()) { - puts("ERROR: VDDINT voltage is out of spec for writing\n"); - return -1; - } - - /* Do the actual reading/writing stuff */ - ret = 0; - for (i = half; i < count + half; ++i) { - flags = base_flags | (i % 2 ? OTP_UPPER_HALF : OTP_LOWER_HALF); - try_again: - ret = otp_func(page, flags, addr); - if (ret & OTP_MASTER_ERROR) { - if (force_read) { - if (flags & OTP_NO_ECC) - break; - else - flags |= OTP_NO_ECC; - puts("E"); - goto try_again; - } else - break; - } else if (ret) - puts("W"); - else - puts("."); - if (!(base_flags & OTP_LOCK)) { - ++addr; - if (i % 2) - ++page; - } else - ++page; - } - if (ret & 0x1) - printf("\nERROR at page 0x%03X (%s-halfpage): 0x%03X: %s\n", - page, lowup(i), ret, otp_strerror(ret)); - else - puts(" done\n"); - - /* Make sure we disable writing */ - set_otp_timing(false); - bfrom_OtpCommand(OTP_CLOSE, 0); - - return ret; -} - -U_BOOT_CMD( - otp, 7, 0, do_otp, - "One-Time-Programmable sub-system", - "read [count] [half]\n" - " - read 'count' half-pages starting at 'page' (offset 'half') to 'addr'\n" - "otp dump [count] [half]\n" - " - like 'otp read', but skip read errors\n" - "otp write [--force] [count] [half]\n" - " - write 'count' half-pages starting at 'page' (offset 'half') from 'addr'\n" - "otp lock \n" - " - lock 'count' pages starting at 'page'" -); -- cgit