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mmcsd: Allow setting ID mode frequency vi Kconfig

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Signed-off-by: Brennan Ashton <bashton@brennanashton.com>
This commit is contained in:
Brennan Ashton 2020-09-15 16:39:30 -07:00 committed by David Sidrane
parent 5eefe8609c
commit 26395a6908
2 changed files with 11 additions and 20 deletions
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8
drivers/mmcsd/Kconfig
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@ -92,6 +92,14 @@ config MMCSD_SPIMODE
---help---
Should be mode 0. However, sometimes this is useful for experimenting.
config MMCSD_IDMODE_CLOCK
int "MMC/SD ID Mode SPI clock"
default 400000
depends on MMCSD_SPI
---help---
SPI clock identify MMC/SD card.
Should be 400KHz or less.
endif
config SDIO_DMA

23
drivers/mmcsd/mmcsd_spi.c
View file

@ -54,29 +54,12 @@
/* Configuration ************************************************************/
#ifndef CONFIG_MMCSD_NSLOTS
# ifdef CONFIG_CPP_HAVE_WARNING
# warning "CONFIG_MMCSD_NSLOTS not defined"
# endif
# define CONFIG_MMCSD_NSLOTS 1
#endif
#define MMCSD_IDMODE_CLOCK (400000)
#if !defined(CONFIG_MMCSD_READONLY)
# define MMCSD_MODE 0666
#else
# define MMCSD_MODE 0444
#endif
#ifndef CONFIG_MMCSD_SPICLOCK
# define CONFIG_MMCSD_SPICLOCK 20000000
#endif
#ifndef CONFIG_MMCSD_SPIMODE
# define CONFIG_MMCSD_SPIMODE SPIDEV_MODE0
#endif
#ifndef CONFIG_MMCSD_SECTOR512
# define CONFIG_MMCSD_SECTOR512 /* Force 512 byte sectors on all cards */
#endif
@ -1656,8 +1639,8 @@ static int mmcsd_mediainitialize(FAR struct mmcsd_slot_s *slot)
/* Clock Freq. Identification Mode < 400kHz */
slot->spispeed = MMCSD_IDMODE_CLOCK;
SPI_SETFREQUENCY(spi, MMCSD_IDMODE_CLOCK);
slot->spispeed = CONFIG_MMCSD_IDMODE_CLOCK;
SPI_SETFREQUENCY(spi, CONFIG_MMCSD_IDMODE_CLOCK);
/* Set the maximum access time out */
@ -2034,7 +2017,7 @@ int mmcsd_spislotinitialize(int minor, int slotno, FAR struct spi_dev_s *spi)
/* Bind the SPI port to the slot */
slot->spi = spi;
slot->spispeed = MMCSD_IDMODE_CLOCK;
slot->spispeed = CONFIG_MMCSD_IDMODE_CLOCK;
/* Get exclusive access to the SPI bus and make sure that SPI is properly
* configured for the MMC/SD card