Message ID | 08614aa294ea987f343231801f83f7094f2063f5.1645609051.git.jan.kiszka@siemens.com |
---|---|
State | Superseded |
Delegated to: | Jagannadha Sutradharudu Teki |
Headers | show
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Series |
sf: Check protection before writing/erasing flash
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expand
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diff --git a/cmd/sf.c b/cmd/sf.c index 8bdebd9fd8f..ef2df0085ea 100644 --- a/cmd/sf.c +++ b/cmd/sf.c @@ -287,6 +287,12 @@ static int do_spi_flash_read_write(int argc, char *const argv[]) return 1; } + if (strncmp(argv[0], "read", 4) != 0 && flash->flash_is_unlocked && + flash->flash_is_unlocked(flash, offset, len)) { + printf("ERROR: flash area is locked\n"); + return 1; + } + buf = map_physmem(addr, len, MAP_WRBACK); if (!buf && addr) { puts("Failed to map physical memory\n"); @@ -343,6 +349,12 @@ static int do_spi_flash_erase(int argc, char *const argv[]) return 1; } + if (flash->flash_is_unlocked && + flash->flash_is_unlocked(flash, offset, len)) { + printf("ERROR: flash area is locked\n"); + return 1; + } + ret = spi_flash_erase(flash, offset, size); printf("SF: %zu bytes @ %#x Erased: ", (size_t)size, (u32)offset); if (ret)