[U-Boot] [PATCH v5 1/7] mx23: Fix pad voltage selection bit

Fabio Estevam
2013-05-03T14:37:07Z

On mx23 the pad voltage selection bit needs to be always '0', since '1' is a
reserved value.

For example:

Pin 108, EMI_A06 pin voltage selection:
0= 1.8V (mDDR) or 2.5V (DDR1);
1= reserved.

Fix the pad voltage definitions for the mx23 case.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Acked-by: Marek Vasut <marex@denx.de>
---
Changes since v4:
- Enclose CONFIG_MX28 with parenthesis
Changes since v3:
- Add Marek's ack
Changes since v2:
- Only place PAD_3V3 inside the if/else block
Changes since v1:
- Newly introduced

arch/arm/include/asm/arch-mxs/iomux.h | 4 ++++
1 file changed, 4 insertions(+)

diff --git a/arch/arm/include/asm/arch-mxs/iomux.h b/arch/arm/include/asm/arch-mxs/iomux.h
index 4288715..f46895e 100644
--- a/arch/arm/include/asm/arch-mxs/iomux.h
+++ b/arch/arm/include/asm/arch-mxs/iomux.h
@@ -71,7 +71,11 @@ typedef u32 iomux_cfg_t;
#define PAD_16MA 3

#define PAD_1V8 0
+#if defined(CONFIG_MX28)
#define PAD_3V3 1
+#else
+#define PAD_3V3 0
+#endif

#define PAD_NOPULL 0
#define PAD_PULLUP 1
--
1.7.9.5