diff options
| author | Adrian Hunter <adrian.hunter@intel.com> | 2011-09-23 12:48:21 +0300 |
|---|---|---|
| committer | Chris Ball <cjb@laptop.org> | 2011-10-26 16:32:15 -0400 |
| commit | f7c56ef2af5ae7e4c24c3c79427b38d18ba1d294 (patch) | |
| tree | 5590da07839d9a07b7811a8fe0104aaa596e03dc /include | |
| parent | 0d7d85ca6e5dc7bd426d1d5989a44e93e8c7a0d3 (diff) | |
| download | lwn-f7c56ef2af5ae7e4c24c3c79427b38d18ba1d294.tar.gz lwn-f7c56ef2af5ae7e4c24c3c79427b38d18ba1d294.zip | |
mmc: block: support no access to boot partitions
Intel Medfield platform blocks access to eMMC boot partitions which
results in switch errors. Since there is no access, mmcboot0/1
devices should not be created. Add a host capability to reflect that.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/mmc/host.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/include/linux/mmc/host.h b/include/linux/mmc/host.h index b2aefea97048..aed5bc7245f7 100644 --- a/include/linux/mmc/host.h +++ b/include/linux/mmc/host.h @@ -236,6 +236,10 @@ struct mmc_host { #define MMC_CAP_CMD23 (1 << 30) /* CMD23 supported. */ #define MMC_CAP_HW_RESET (1 << 31) /* Hardware reset */ + unsigned int caps2; /* More host capabilities */ + +#define MMC_CAP2_BOOTPART_NOACC (1 << 0) /* Boot partition no access */ + mmc_pm_flag_t pm_caps; /* supported pm features */ #ifdef CONFIG_MMC_CLKGATE @@ -404,4 +408,10 @@ static inline int mmc_host_cmd23(struct mmc_host *host) { return host->caps & MMC_CAP_CMD23; } + +static inline int mmc_boot_partition_access(struct mmc_host *host) +{ + return !(host->caps2 & MMC_CAP2_BOOTPART_NOACC); +} + #endif /* LINUX_MMC_HOST_H */ |