diff options
Diffstat (limited to 'mmc_cmds.c')
| -rw-r--r-- | mmc_cmds.c | 26 |
1 files changed, 24 insertions, 2 deletions
@@ -917,10 +917,32 @@ int do_read_extcsd(int nargs, char **argv) /* A441]: reserved [170] */ printf("FW configuration [FW_CONFIG]: 0x%02x\n", ext_csd[169]); printf("RPMB Size [RPMB_SIZE_MULT]: 0x%02x\n", ext_csd[168]); + + reg = ext_csd[EXT_CSD_WR_REL_SET]; + const char * const fast = "existing data is at risk if a power " + "failure occurs during a write operation"; + const char * const reliable = "the device protects existing " + "data if a power failure occurs during a write " + "operation"; printf("Write reliability setting register" - " [WR_REL_SET]: 0x%02x\n", ext_csd[167]); + " [WR_REL_SET]: 0x%02x\n", reg); + + printf(" user area: %s\n", reg & (1<<0) ? reliable : fast); + int i; + for (i = 1; i <= 4; i++) { + printf(" partition %d: %s\n", i, + reg & (1<<i) ? reliable : fast); + } + + reg = ext_csd[EXT_CSD_WR_REL_PARAM]; printf("Write reliability parameter register" - " [WR_REL_PARAM]: 0x%02x\n", ext_csd[166]); + " [WR_REL_PARAM]: 0x%02x\n", reg); + if (reg & 0x01) + printf(" Device supports writing EXT_CSD_WR_REL_SET\n"); + if (reg & 0x04) + printf(" Device supports the enhanced def. of reliable " + "write\n"); + /* sanitize_start ext_csd[165]]: not readable * bkops_start ext_csd[164]]: only writable */ printf("Enable background operations handshake" |