diff options
Diffstat (limited to 'src/systemcmds/mtd/mtd.c')
| -rw-r--r-- | src/systemcmds/mtd/mtd.c | 31 |
1 files changed, 30 insertions, 1 deletions
diff --git a/src/systemcmds/mtd/mtd.c b/src/systemcmds/mtd/mtd.c index c9a9ea97a..590c1fb30 100644 --- a/src/systemcmds/mtd/mtd.c +++ b/src/systemcmds/mtd/mtd.c @@ -77,6 +77,7 @@ int mtd_main(int argc, char *argv[]) static void mtd_attach(void); static void mtd_start(char *partition_names[], unsigned n_partitions); static void mtd_test(void); +static void mtd_erase(char *partition_names[], unsigned n_partitions); static bool attached = false; static bool started = false; @@ -102,9 +103,16 @@ int mtd_main(int argc, char *argv[]) if (!strcmp(argv[1], "test")) mtd_test(); + + if (!strcmp(argv[1], "erase")) { + if (argc < 3) { + errx(1, "usage: mtd erase <PARTITION_PATH..>"); + } + mtd_erase(argv + 2, argc - 2); + } } - errx(1, "expected a command, try 'start' or 'test'"); + errx(1, "expected a command, try 'start', 'erase' or 'test'"); } struct mtd_dev_s *ramtron_initialize(FAR struct spi_dev_s *dev); @@ -247,4 +255,25 @@ mtd_test(void) exit(1); } +static void +mtd_erase(char *partition_names[], unsigned n_partitions) +{ + uint8_t v[64]; + memset(v, 0xFF, sizeof(v)); + for (uint8_t i = 0; i < n_partitions; i++) { + uint32_t count = 0; + printf("Erasing %s\n", partition_names[i]); + int fd = open(partition_names[i], O_WRONLY); + if (fd == -1) { + errx(1, "Failed to open partition"); + } + while (write(fd, &v, sizeof(v)) == sizeof(v)) { + count += sizeof(v); + } + printf("Erased %lu bytes\n", (unsigned long)count); + close(fd); + } + exit(0); +} + #endif |