arm: vf610: Add IOMUX support for Vybrid VF610

This patch adds the IOMUX support for Vybrid VF610 platform.

There is a little difference for IOMUXC module between VF610 and i.MX
platform, the muxmode and pad configuration share one 32bit register on
VF610, but they are two independent registers on I.MX platform. A
CONFIG_IOMUX_SHARE_CONFIG_REG was introduced to fit this difference.

Signed-off-by: Alison Wang <b18965@freescale.com>
Acked-by: Stefano Babic <sbabic@denx.de>
Reviewed-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com>

diff --git a/arch/arm/imx-common/Makefile b/arch/arm/imx-common/Makefile
index 8bba8a57bf4ac870c88b1095efef846c47547e4b..949232661500f517d25d131486a1b58d28fe43f1 100644 (file)
--- a/arch/arm/imx-common/Makefile
+++ b/arch/arm/imx-common/Makefile
@@ -27,7 +27,7 @@ include $(TOPDIR)/config.mk
 
 LIB     = $(obj)libimx-common.o
 
-ifeq ($(SOC),$(filter $(SOC),mx25 mx35 mx5 mx6))
+ifeq ($(SOC),$(filter $(SOC),mx25 mx35 mx5 mx6 vf610))
 COBJS-y        = iomux-v3.o
 endif
 ifeq ($(SOC),$(filter $(SOC),mx5 mx6))

diff --git a/arch/arm/imx-common/iomux-v3.c b/arch/arm/imx-common/iomux-v3.c
index 7fe5ce7ce554e487e5cdfa720957579b144b0912..35880c7a7ceb6d7219e28757c53299fd459b736d 100644 (file)
--- a/arch/arm/imx-common/iomux-v3.c
+++ b/arch/arm/imx-common/iomux-v3.c
@@ -48,8 +48,14 @@ void imx_iomux_v3_setup_pad(iomux_v3_cfg_t pad)
        if (sel_input_ofs)
                __raw_writel(sel_input, base + sel_input_ofs);
 
+#ifdef CONFIG_IOMUX_SHARE_CONF_REG
+       if (!(pad_ctrl & NO_PAD_CTRL))
+               __raw_writel((mux_mode << PAD_MUX_MODE_SHIFT) | pad_ctrl,
+                       base + pad_ctrl_ofs);
+#else
        if (!(pad_ctrl & NO_PAD_CTRL) && pad_ctrl_ofs)
                __raw_writel(pad_ctrl, base + pad_ctrl_ofs);
+#endif
 }
 
 void imx_iomux_v3_setup_multiple_pads(iomux_v3_cfg_t const *pad_list,

diff --git a/arch/arm/include/asm/imx-common/iomux-v3.h b/arch/arm/include/asm/imx-common/iomux-v3.h
index 0b4e76333e456159599f656afed7c1c91c36b2d3..ebf54cf187a9dec38df0dc3058ddaed28968f2fe 100644 (file)
--- a/arch/arm/include/asm/imx-common/iomux-v3.h
+++ b/arch/arm/include/asm/imx-common/iomux-v3.h
@@ -121,6 +121,24 @@ typedef u64 iomux_v3_cfg_t;
 #define PAD_CTL_DSE_40ohm      (6 << 3)
 #define PAD_CTL_DSE_34ohm      (7 << 3)
 
+#elif defined(CONFIG_VF610)
+
+#define PAD_MUX_MODE_SHIFT     20
+
+#define PAD_CTL_SPEED_MED      (1 << 12)
+#define PAD_CTL_SPEED_HIGH     (3 << 12)
+
+#define PAD_CTL_DSE_50ohm      (3 << 6)
+#define PAD_CTL_DSE_25ohm      (6 << 6)
+#define PAD_CTL_DSE_20ohm      (7 << 6)
+
+#define PAD_CTL_PUS_47K_UP     (1 << 4 | PAD_CTL_PUE)
+#define PAD_CTL_PUS_100K_UP    (2 << 4 | PAD_CTL_PUE)
+#define PAD_CTL_PKE            (1 << 3)
+#define PAD_CTL_PUE            (1 << 2 | PAD_CTL_PKE)
+
+#define PAD_CTL_OBE_IBE_ENABLE (3 << 0)
+
 #else
 
 #define PAD_CTL_DVS            (1 << 13)