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mmc: make UHS and HS200 optional

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Supporting USH and HS200 increases the code size as it brings in IO voltage
control, tuning and fatter data structures.
Use Kconfig configuration to select which of those features should be
built in.

Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com>
This commit is contained in:
Jean-Jacques Hiblot
2017-11-30 17:44:01 +01:00
committed by Jaehoon Chung
parent d8e3d42089
commit f99c2efe56
4 changed files with 135 additions and 5 deletions
Download Patch File Download Diff File Expand all files Collapse all files

27
include/mmc.h
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@@ -15,6 +15,13 @@
#include <linux/compiler.h>
#include <part.h>
#if CONFIG_IS_ENABLED(MMC_HS200_SUPPORT)
#define MMC_SUPPORTS_TUNING
#endif
#if CONFIG_IS_ENABLED(MMC_UHS_SUPPORT)
#define MMC_SUPPORTS_TUNING
#endif
/* SD/MMC version bits; 8 flags, 8 major, 8 minor, 8 change */
#define SD_VERSION_SD (1U << 31)
#define MMC_VERSION_MMC (1U << 30)
@@ -425,6 +432,7 @@ struct dm_mmc_ops {
*/
int (*get_wp)(struct udevice *dev);
#ifdef MMC_SUPPORTS_TUNING
/**
* execute_tuning() - Start the tuning process
*
@@ -433,7 +441,9 @@ struct dm_mmc_ops {
* @return 0 if OK, -ve on error
*/
int (*execute_tuning)(struct udevice *dev, uint opcode);
#endif
#if CONFIG_IS_ENABLED(MMC_UHS_SUPPORT)
/**
* wait_dat0() - wait until dat0 is in the target state
* (CLK must be running during the wait)
@@ -444,6 +454,7 @@ struct dm_mmc_ops {
* @return 0 if dat0 is in the target state, -ve on error
*/
int (*wait_dat0)(struct udevice *dev, int state, int timeout);
#endif
};
#define mmc_get_ops(dev) ((struct dm_mmc_ops *)(dev)->driver->ops)
@@ -500,13 +511,13 @@ enum bus_mode {
SD_LEGACY,
MMC_HS,
SD_HS,
MMC_HS_52,
MMC_DDR_52,
UHS_SDR12,
UHS_SDR25,
UHS_SDR50,
UHS_SDR104,
UHS_DDR50,
MMC_HS_52,
MMC_DDR_52,
UHS_SDR104,
MMC_HS_200,
MMC_MODES_END
};
@@ -516,8 +527,12 @@ void mmc_dump_capabilities(const char *text, uint caps);
static inline bool mmc_is_mode_ddr(enum bus_mode mode)
{
if ((mode == MMC_DDR_52) || (mode == UHS_DDR50))
if (mode == MMC_DDR_52)
return true;
#if CONFIG_IS_ENABLED(MMC_UHS_SUPPORT)
else if (mode == UHS_DDR50)
return true;
#endif
else
return false;
}
@@ -528,7 +543,11 @@ static inline bool mmc_is_mode_ddr(enum bus_mode mode)
static inline bool supports_uhs(uint caps)
{
#if CONFIG_IS_ENABLED(MMC_UHS_SUPPORT)
return (caps & UHS_CAPS) ? true : false;
#else
return false;
#endif
}
/*