From 8ca51e51c182699ebc64b10660db3e03cb43cb54 Mon Sep 17 00:00:00 2001 From: Simon Glass Date: Sun, 12 Jun 2016 23:30:22 -0600 Subject: dm: mmc: Add a way to use driver model for MMC operations The driver model conversion for MMC has moved in small steps. The first step was to have an MMC device (CONFIG_DM_MMC). The second was to use a child block device (CONFIG_BLK). The final one is to use driver model for MMC operations (CONFIG_DM_MMC_OP). Add support for this. The immediate priority is to make all boards that use DM_MMC also use those other two options. This will allow them to be removed. Signed-off-by: Simon Glass --- include/mmc.h | 66 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++- 1 file changed, 65 insertions(+), 1 deletion(-) (limited to 'include/mmc.h') diff --git a/include/mmc.h b/include/mmc.h index f383925..8f309f1 100644 --- a/include/mmc.h +++ b/include/mmc.h @@ -323,6 +323,58 @@ struct mmc_data { /* forward decl. */ struct mmc; +#ifdef CONFIG_DM_MMC_OPS +struct dm_mmc_ops { + /** + * send_cmd() - Send a command to the MMC device + * + * @dev: Device to receive the command + * @cmd: Command to send + * @data: Additional data to send/receive + * @return 0 if OK, -ve on error + */ + int (*send_cmd)(struct udevice *dev, struct mmc_cmd *cmd, + struct mmc_data *data); + + /** + * set_ios() - Set the I/O speed/width for an MMC device + * + * @dev: Device to update + * @return 0 if OK, -ve on error + */ + int (*set_ios)(struct udevice *dev); + + /** + * get_cd() - See whether a card is present + * + * @dev: Device to check + * @return 0 if not present, 1 if present, -ve on error + */ + int (*get_cd)(struct udevice *dev); + + /** + * get_wp() - See whether a card has write-protect enabled + * + * @dev: Device to check + * @return 0 if write-enabled, 1 if write-protected, -ve on error + */ + int (*get_wp)(struct udevice *dev); +}; + +#define mmc_get_ops(dev) ((struct dm_mmc_ops *)(dev)->driver->ops) + +int dm_mmc_send_cmd(struct udevice *dev, struct mmc_cmd *cmd, + struct mmc_data *data); +int dm_mmc_set_ios(struct udevice *dev); +int dm_mmc_get_cd(struct udevice *dev); +int dm_mmc_get_wp(struct udevice *dev); + +/* Transition functions for compatibility */ +int mmc_set_ios(struct mmc *mmc); +int mmc_getcd(struct mmc *mmc); +int mmc_getwp(struct mmc *mmc); + +#else struct mmc_ops { int (*send_cmd)(struct mmc *mmc, struct mmc_cmd *cmd, struct mmc_data *data); @@ -331,10 +383,13 @@ struct mmc_ops { int (*getcd)(struct mmc *mmc); int (*getwp)(struct mmc *mmc); }; +#endif struct mmc_config { const char *name; +#ifndef CONFIG_DM_MMC_OPS const struct mmc_ops *ops; +#endif uint host_caps; uint voltages; uint f_min; @@ -343,7 +398,12 @@ struct mmc_config { unsigned char part_type; }; -/* TODO struct mmc should be in mmc_private but it's hard to fix right now */ +/* + * With CONFIG_DM_MMC enabled, struct mmc can be accessed from the MMC device + * with mmc_get_mmc_dev(). + * + * TODO struct mmc should be in mmc_private but it's hard to fix right now + */ struct mmc { #ifndef CONFIG_BLK struct list_head link; @@ -446,10 +506,14 @@ void print_mmc_devices(char separator); int get_mmc_num(void); int mmc_hwpart_config(struct mmc *mmc, const struct mmc_hwpart_conf *conf, enum mmc_hwpart_conf_mode mode); + +#ifndef CONFIG_DM_MMC_OPS int mmc_getcd(struct mmc *mmc); int board_mmc_getcd(struct mmc *mmc); int mmc_getwp(struct mmc *mmc); int board_mmc_getwp(struct mmc *mmc); +#endif + int mmc_set_dsr(struct mmc *mmc, u16 val); /* Function to change the size of boot partition and rpmb partitions */ int mmc_boot_partition_size_change(struct mmc *mmc, unsigned long bootsize, -- cgit v1.1