diff options
Diffstat (limited to 'drivers/bus')
| -rw-r--r-- | drivers/bus/fsl-mc/dprc.c | 38 | ||||
| -rw-r--r-- | drivers/bus/fsl-mc/fsl-mc-private.h | 3 |
2 files changed, 27 insertions, 14 deletions
diff --git a/drivers/bus/fsl-mc/dprc.c b/drivers/bus/fsl-mc/dprc.c index 650808799a29..57b097caf255 100644 --- a/drivers/bus/fsl-mc/dprc.c +++ b/drivers/bus/fsl-mc/dprc.c @@ -536,20 +536,30 @@ int dprc_get_obj_region(struct fsl_mc_io *mc_io, return err; } - /** - * MC API version 6.3 introduced a new field to the region - * descriptor: base_address. If the older API is in use then the base - * address is set to zero to indicate it needs to be obtained elsewhere - * (typically the device tree). - */ - if (dprc_major_ver > 6 || (dprc_major_ver == 6 && dprc_minor_ver >= 3)) - cmd.header = - mc_encode_cmd_header(DPRC_CMDID_GET_OBJ_REG_V2, - cmd_flags, token); - else - cmd.header = - mc_encode_cmd_header(DPRC_CMDID_GET_OBJ_REG, - cmd_flags, token); + if (dprc_major_ver > 6 || (dprc_major_ver == 6 && dprc_minor_ver >= 6)) { + /* + * MC API version 6.6 changed the size of the MC portals and software + * portals to 64K (as implemented by hardware). If older API is in use the + * size reported is less (64 bytes for mc portals and 4K for software + * portals). + */ + + cmd.header = mc_encode_cmd_header(DPRC_CMDID_GET_OBJ_REG_V3, + cmd_flags, token); + + } else if (dprc_major_ver == 6 && dprc_minor_ver >= 3) { + /* + * MC API version 6.3 introduced a new field to the region + * descriptor: base_address. If the older API is in use then the base + * address is set to zero to indicate it needs to be obtained elsewhere + * (typically the device tree). + */ + cmd.header = mc_encode_cmd_header(DPRC_CMDID_GET_OBJ_REG_V2, + cmd_flags, token); + } else { + cmd.header = mc_encode_cmd_header(DPRC_CMDID_GET_OBJ_REG, + cmd_flags, token); + } cmd_params = (struct dprc_cmd_get_obj_region *)cmd.params; cmd_params->obj_id = cpu_to_le32(obj_id); diff --git a/drivers/bus/fsl-mc/fsl-mc-private.h b/drivers/bus/fsl-mc/fsl-mc-private.h index 3e9f9c778631..85ca5fdee581 100644 --- a/drivers/bus/fsl-mc/fsl-mc-private.h +++ b/drivers/bus/fsl-mc/fsl-mc-private.h @@ -80,10 +80,12 @@ int dpmcp_reset(struct fsl_mc_io *mc_io, /* DPRC command versioning */ #define DPRC_CMD_BASE_VERSION 1 #define DPRC_CMD_2ND_VERSION 2 +#define DPRC_CMD_3RD_VERSION 3 #define DPRC_CMD_ID_OFFSET 4 #define DPRC_CMD(id) (((id) << DPRC_CMD_ID_OFFSET) | DPRC_CMD_BASE_VERSION) #define DPRC_CMD_V2(id) (((id) << DPRC_CMD_ID_OFFSET) | DPRC_CMD_2ND_VERSION) +#define DPRC_CMD_V3(id) (((id) << DPRC_CMD_ID_OFFSET) | DPRC_CMD_3RD_VERSION) /* DPRC command IDs */ #define DPRC_CMDID_CLOSE DPRC_CMD(0x800) @@ -105,6 +107,7 @@ int dpmcp_reset(struct fsl_mc_io *mc_io, #define DPRC_CMDID_GET_OBJ DPRC_CMD(0x15A) #define DPRC_CMDID_GET_OBJ_REG DPRC_CMD(0x15E) #define DPRC_CMDID_GET_OBJ_REG_V2 DPRC_CMD_V2(0x15E) +#define DPRC_CMDID_GET_OBJ_REG_V3 DPRC_CMD_V3(0x15E) #define DPRC_CMDID_SET_OBJ_IRQ DPRC_CMD(0x15F) #define DPRC_CMDID_GET_CONNECTION DPRC_CMD(0x16C) |