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

Message ID 1367591833-17484-2-git-send-email-festevam@gmail.com
State Awaiting Upstream
Delegated to: Stefano Babic
Headers show

Commit Message

Fabio Estevam May 3, 2013, 2:37 p.m. UTC 
From: Fabio Estevam <fabio.estevam@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@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(+)
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Patch

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