When MPC85xx_PMUXCR_SDHC_WP is set then SDHC controller automatically makes inserted SD card readonly if GPIO[9] is active.
In some design GPIO[9] pin does not have to be connected to SD card write-protect pin and can be used as GPIO. So do not set MPC85xx_PMUXCR_SDHC_WP bit when GPIO[9] is not used for SDHC_WP functionality. Signed-off-by: Pali Rohár <[email protected]> --- board/freescale/p1_p2_rdb_pc/p1_p2_rdb_pc.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/board/freescale/p1_p2_rdb_pc/p1_p2_rdb_pc.c b/board/freescale/p1_p2_rdb_pc/p1_p2_rdb_pc.c index 766a82386079..fc581bdb2a40 100644 --- a/board/freescale/p1_p2_rdb_pc/p1_p2_rdb_pc.c +++ b/board/freescale/p1_p2_rdb_pc/p1_p2_rdb_pc.c @@ -147,8 +147,10 @@ int board_early_init_f(void) { ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR); - setbits_be32(&gur->pmuxcr, - (MPC85xx_PMUXCR_SDHC_CD | MPC85xx_PMUXCR_SDHC_WP)); + setbits_be32(&gur->pmuxcr, MPC85xx_PMUXCR_SDHC_CD); +#ifndef SDHC_WP_IS_GPIO + setbits_be32(&gur->pmuxcr, MPC85xx_PMUXCR_SDHC_WP); +#endif clrbits_be32(&gur->sdhcdcr, SDHCDCR_CD_INV); clrbits_be32(&gur->pmuxcr, MPC85xx_PMUXCR_SD_DATA); -- 2.20.1
