diff options
Diffstat (limited to 'drivers/fsi/fsi-scom.c')
| -rw-r--r-- | drivers/fsi/fsi-scom.c | 19 |
1 files changed, 18 insertions, 1 deletions
diff --git a/drivers/fsi/fsi-scom.c b/drivers/fsi/fsi-scom.c index 6ddfb6021420..e98573ecdae1 100644 --- a/drivers/fsi/fsi-scom.c +++ b/drivers/fsi/fsi-scom.c @@ -30,8 +30,25 @@ #define SCOM_DATA0_REG 0x00 #define SCOM_DATA1_REG 0x04 #define SCOM_CMD_REG 0x08 +#define SCOM_FSI2PIB_RESET_REG 0x18 +#define SCOM_STATUS_REG 0x1C /* Read */ +#define SCOM_PIB_RESET_REG 0x1C /* Write */ +/* Command register */ #define SCOM_WRITE_CMD 0x80000000 +#define SCOM_READ_CMD 0x00000000 + +/* Status register bits */ +#define SCOM_STATUS_ERR_SUMMARY 0x80000000 +#define SCOM_STATUS_PROTECTION 0x01000000 +#define SCOM_STATUS_PIB_ABORT 0x00100000 +#define SCOM_STATUS_PIB_RESP_MASK 0x00007000 +#define SCOM_STATUS_PIB_RESP_SHIFT 12 + +#define SCOM_STATUS_ANY_ERR (SCOM_STATUS_ERR_SUMMARY | \ + SCOM_STATUS_PROTECTION | \ + SCOM_STATUS_PIB_ABORT | \ + SCOM_STATUS_PIB_RESP_MASK) struct scom_device { struct list_head link; @@ -85,7 +102,7 @@ static int get_scom(struct scom_device *scom_dev, uint64_t *value, mutex_lock(&scom_dev->lock); *value = 0ULL; - data = cpu_to_be32(addr); + data = cpu_to_be32(SCOM_READ_CMD | addr); rc = fsi_device_write(scom_dev->fsi_dev, SCOM_CMD_REG, &data, sizeof(uint32_t)); if (rc) |