upstream u-boot with additional patches for our devices/boards: https://lists.denx.de/pipermail/u-boot/2017-March/282789.html (AXP crashes) ; Gbit ethernet patch for some LIME2 revisions ; with SPI flash support
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u-boot/board/atmel/at91rm9200dk/mux.c

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923 B

#include <config.h>
#include <common.h>
#include <asm/hardware.h>
#include <dataflash.h>
int AT91F_GetMuxStatus(void) {
AT91C_BASE_PIOB->PIO_PER = CONFIG_SYS_DATAFLASH_MMC_PIO; /* Set in PIO mode */
AT91C_BASE_PIOB->PIO_OER = CONFIG_SYS_DATAFLASH_MMC_PIO; /* Configure in output */
if(AT91C_BASE_PIOB->PIO_ODSR & CONFIG_SYS_DATAFLASH_MMC_PIO)
return 1;
return 0;
}
void AT91F_SelectMMC(void) {
AT91C_BASE_PIOB->PIO_PER = CONFIG_SYS_DATAFLASH_MMC_PIO; /* Set in PIO mode */
AT91C_BASE_PIOB->PIO_OER = CONFIG_SYS_DATAFLASH_MMC_PIO; /* Configure in output */
/* Set Output */
AT91C_BASE_PIOB->PIO_SODR = CONFIG_SYS_DATAFLASH_MMC_PIO;
}
void AT91F_SelectSPI(void) {
AT91C_BASE_PIOB->PIO_PER = CONFIG_SYS_DATAFLASH_MMC_PIO; /* Set in PIO mode */
AT91C_BASE_PIOB->PIO_OER = CONFIG_SYS_DATAFLASH_MMC_PIO; /* Configure in output */
/* Clear Output */
AT91C_BASE_PIOB->PIO_CODR = CONFIG_SYS_DATAFLASH_MMC_PIO;
}