GPIO PI6 can be used to obtain the write-protect status of an SD card
inserted into the SD slot.
Signed-off-by: Thierry Reding <thierry.red...@avionic-design.de>
---
Changes in v2:
- new patch
board/avionic-design/common/tamonten.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/board/avionic-design/common/tamonten.c
b/board/avionic-design/common/tamonten.c
index 2b19d1e..7c92158 100644
--- a/board/avionic-design/common/tamonten.c
+++ b/board/avionic-design/common/tamonten.c
@@ -66,6 +66,8 @@ void gpio_early_init(void)
static void pin_mux_mmc(void)
{
funcmux_select(PERIPH_ID_SDMMC4, FUNCMUX_SDMMC4_ATB_GMA_GME_8_BIT);
+ /* for write-protect GPIO PI6 */
+ pinmux_tristate_disable(PINGRP_ATA);
/* for CD GPIO PH2 */
pinmux_tristate_disable(PINGRP_ATD);
}
@@ -77,7 +79,7 @@ int board_mmc_init(bd_t *bd)
pin_mux_mmc();
/* init dev 0, SD slot, with 4-bit bus */
- tegra2_mmc_init(0, 4, -1, GPIO_PH2);
+ tegra2_mmc_init(0, 4, GPIO_PI6, GPIO_PH2);
return 0;
}
--
1.7.10.2
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