[U-Boot] [PATCH v3 1/7] mx23: Fix pad voltage selection bit
Fabio Estevam
festevam at gmail.com
Fri May 3 00:44:15 CEST 2013
From: Fabio Estevam <fabio.estevam at freescale.com>
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 at freescale.com>
---
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
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