diff options
| author | Victor Shih <victor.shih@genesyslogic.com.tw> | 2024-10-18 18:53:18 +0800 |
|---|---|---|
| committer | Ulf Hansson <ulf.hansson@linaro.org> | 2024-10-24 14:22:24 +0200 |
| commit | 9a9f7e13952b2638bc57bc9b34e6bdd106509836 (patch) | |
| tree | 467adc5b9dd8597b5f0fb9458fcc164f6ac74c30 /include/linux/mmc/core.h | |
| parent | 328bda09cc91b3d93bc64f4a4dadc44313dd8140 (diff) | |
mmc: core: Support UHS-II card control and access
Embed UHS-II access/control functionality into the MMC request
processing flow.
Signed-off-by: Jason Lai <jason.lai@genesyslogic.com.tw>
Signed-off-by: Victor Shih <victor.shih@genesyslogic.com.tw>
Message-ID: <20241018105333.4569-2-victorshihgli@gmail.com>
[Ulf: A couple of cleanups and fixed sd_uhs2_power_off()]
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Diffstat (limited to 'include/linux/mmc/core.h')
| -rw-r--r-- | include/linux/mmc/core.h | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/include/linux/mmc/core.h b/include/linux/mmc/core.h index a890a71288ef..56972bd78462 100644 --- a/include/linux/mmc/core.h +++ b/include/linux/mmc/core.h @@ -11,6 +11,20 @@ struct mmc_data; struct mmc_request; +#define UHS2_MAX_PAYLOAD_LEN 2 +#define UHS2_MAX_RESP_LEN 20 + +struct uhs2_command { + u16 header; + u16 arg; + __be32 payload[UHS2_MAX_PAYLOAD_LEN]; + u8 payload_len; + u8 packet_len; + u8 tmode_half_duplex; + u8 uhs2_resp[UHS2_MAX_RESP_LEN]; /* UHS2 native cmd resp */ + u8 uhs2_resp_len; /* UHS2 native cmd resp len */ +}; + struct mmc_command { u32 opcode; u32 arg; @@ -97,6 +111,8 @@ struct mmc_command { struct mmc_data *data; /* data segment associated with cmd */ struct mmc_request *mrq; /* associated request */ + struct uhs2_command *uhs2_cmd; /* UHS2 command */ + /* for SDUC */ bool has_ext_addr; u8 ext_addr; @@ -158,6 +174,7 @@ struct mmc_request { const struct bio_crypt_ctx *crypto_ctx; int crypto_key_slot; #endif + struct uhs2_command uhs2_cmd; }; struct mmc_card; |