diff options
Diffstat (limited to 'src/systemcmds/mtd/mtd.c')
| -rw-r--r-- | src/systemcmds/mtd/mtd.c | 54 |
1 files changed, 47 insertions, 7 deletions
diff --git a/src/systemcmds/mtd/mtd.c b/src/systemcmds/mtd/mtd.c index baef9dccc..e89b6e5aa 100644 --- a/src/systemcmds/mtd/mtd.c +++ b/src/systemcmds/mtd/mtd.c @@ -64,17 +64,20 @@ __EXPORT int mtd_main(int argc, char *argv[]); -#ifndef CONFIG_MTD_RAMTRON +#ifndef CONFIG_MTD /* create a fake command with decent warnx to not confuse users */ int mtd_main(int argc, char *argv[]) { - errx(1, "RAMTRON not enabled, skipping."); + errx(1, "MTD not enabled, skipping."); } #else -static void mtd_attach(void); +#ifdef CONFIG_MTD_RAMTRON +static void ramtron_attach(void); +#endif +static void at24xxx_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); @@ -119,8 +122,9 @@ struct mtd_dev_s *ramtron_initialize(FAR struct spi_dev_s *dev); struct mtd_dev_s *mtd_partition(FAR struct mtd_dev_s *mtd, off_t firstblock, off_t nblocks); +#ifdef CONFIG_MTD_RAMTRON static void -mtd_attach(void) +ramtron_attach(void) { /* find the right spi */ struct spi_dev_s *spi = up_spiinitialize(2); @@ -133,7 +137,7 @@ mtd_attach(void) if (spi == NULL) errx(1, "failed to locate spi bus"); - /* start the MTD driver, attempt 5 times */ + /* start the RAMTRON driver, attempt 5 times */ for (int i = 0; i < 5; i++) { mtd_dev = ramtron_initialize(spi); @@ -153,6 +157,37 @@ mtd_attach(void) attached = true; } +#endif + +static void +at24xxx_attach(void) +{ + /* find the right I2C */ + struct i2c_dev_s *i2c = up_i2cinitialize(PX4_I2C_BUS_ONBOARD); + /* this resets the I2C bus, set correct bus speed again */ + I2C_SETFREQUENCY(i2c, 400000); + + if (i2c == NULL) + errx(1, "failed to locate I2C bus"); + + /* start the MTD driver, attempt 5 times */ + for (int i = 0; i < 5; i++) { + mtd_dev = at24c_initialize(i2c); + if (mtd_dev) { + /* abort on first valid result */ + if (i > 0) { + warnx("warning: EEPROM needed %d attempts to attach", i+1); + } + break; + } + } + + /* if last attempt is still unsuccessful, abort */ + if (mtd_dev == NULL) + errx(1, "failed to initialize EEPROM driver"); + + attached = true; +} static void mtd_start(char *partition_names[], unsigned n_partitions) @@ -162,8 +197,13 @@ mtd_start(char *partition_names[], unsigned n_partitions) if (started) errx(1, "mtd already mounted"); - if (!attached) - mtd_attach(); + if (!attached) { + #ifdef CONFIG_ARCH_BOARD_PX4FMU_V1 + at24xxx_attach(); + #else + ramtron_attach(); + #endif + } if (!mtd_dev) { warnx("ERROR: Failed to create RAMTRON FRAM MTD instance"); |