diff mbox

[U-Boot,13/22] omap4: separate mux settings into essential and non essential parts

Message ID 1298893591-17636-14-git-send-email-aneesh@ti.com
State Superseded
Delegated to: Sandeep Paulraj
Headers show

Commit Message

Aneesh V Feb. 28, 2011, 11:46 a.m. UTC 
Do the essential part from SPL and non-essential part from U-Boot
- Essential part is what is essential for u-boot to function
- Essential part is also largely board independent(at least
  as of now)
- So essential part is moved out to SoC directory instead of
  keeping in board directory. This helps in having single SPL
  that works for Panda and SDP.
- Non-essential part is what is set by u-boot for kernel to
  function correctly
- Ideally non-essential part should be phased out eventually

Signed-off-by: Aneesh V <aneesh@ti.com>
---
 arch/arm/cpu/armv7/omap4/board.c               |   53 ++++++++++++++++-
 arch/arm/cpu/armv7/omap4/omap4_mux_data.h      |   76 ++++++++++++++++++++++++
 arch/arm/include/asm/arch-omap4/sys_proto.h    |    4 +-
 board/ti/panda/panda.c                         |   25 ++------
 board/ti/panda/{panda.h => panda_mux_data.h}   |   45 ++------------
 board/ti/sdp4430/sdp.c                         |   25 ++------
 board/ti/sdp4430/{sdp.h => sdp4430_mux_data.h} |   47 ++-------------
 7 files changed, 151 insertions(+), 124 deletions(-)
 create mode 100644 arch/arm/cpu/armv7/omap4/omap4_mux_data.h
 rename board/ti/panda/{panda.h => panda_mux_data.h} (83%)
 rename board/ti/sdp4430/{sdp.h => sdp4430_mux_data.h} (83%)
diff mbox

Patch

diff --git a/arch/arm/cpu/armv7/omap4/board.c b/arch/arm/cpu/armv7/omap4/board.c
index da79669..95b6a96 100644
--- a/arch/arm/cpu/armv7/omap4/board.c
+++ b/arch/arm/cpu/armv7/omap4/board.c
@@ -32,9 +32,30 @@ 
 #include <asm/arch/cpu.h>
 #include <asm/arch/sys_proto.h>
 #include <asm/sizes.h>
+#include "omap4_mux_data.h"
 
 DECLARE_GLOBAL_DATA_PTR;
 
+void do_set_mux(u32 base, struct pad_conf_entry const *array, int size)
+{
+	int i;
+	struct pad_conf_entry *pad = (struct pad_conf_entry *) array;
+
+	for (i = 0; i < size; i++, pad++)
+		writew(pad->val, base + pad->offset);
+}
+
+static void set_muxconf_regs_essential(void)
+{
+	do_set_mux(CONTROL_PADCONF_CORE, core_padconf_array_essential,
+		   sizeof(core_padconf_array_essential) /
+		   sizeof(struct pad_conf_entry));
+
+	do_set_mux(CONTROL_PADCONF_WKUP, wkup_padconf_array_essential,
+		   sizeof(wkup_padconf_array_essential) /
+		   sizeof(struct pad_conf_entry));
+}
+
 #ifdef CONFIG_PRELOADER
 u32 omap4_boot_device = BOOT_DEVICE_MMC1;
 u32 omap4_boot_mode = MMCSD_MODE_FAT;
@@ -49,14 +70,41 @@  u32 omap_boot_mode(void)
 }
 #endif
 
+static void set_mux_conf_regs(void)
+{
+	switch (omap4_hw_init_context()) {
+	case OMAP_INIT_CONTEXT_SPL:
+		set_muxconf_regs_essential();
+		break;
+	case OMAP_INIT_CONTEXT_UBOOT_LOADED_BY_SPL:
+		set_muxconf_regs_non_essential();
+		break;
+	case OMAP_INIT_CONTEXT_XIP_UBOOT:
+	case OMAP_INIT_CONTEXT_UBOOT_LOADED_BY_CH:
+		set_muxconf_regs_essential();
+		set_muxconf_regs_non_essential();
+		break;
+	}
+}
+
 /*
  * Routine: s_init
- * Description: Does early system init of muxing and clocks.
- *              - Called path is with SRAM stack.
+ * Description: Does early system init of watchdog, muxing, clocks, and
+ * sdram. Watchdog disable is done always. For the rest what gets done
+ * depends on the boot mode in which this function is executed
+ *   1. s_init of SPL running from SRAM
+ *   2. s_init of U-Boot running from FLASH
+ *   3. s_init of U-Boot loaded to SDRAM by SPL
+ *   4. s_init of U-Boot loaded to SDRAM by ROM code using the Configuration
+ *	Header feature
+ * Please have a look at the respective functions to see what gets done in
+ * each of these cases
+ * This function is called with SRAM stack.
  */
 void s_init(void)
 {
 	watchdog_init();
+	set_mux_conf_regs();
 #ifdef CONFIG_PRELOADER
 	preloader_console_init();
 #endif
@@ -142,7 +190,6 @@  int checkboard(void)
 */
 int arch_cpu_init(void)
 {
-	set_muxconf_regs();
 	return 0;
 }
 
diff --git a/arch/arm/cpu/armv7/omap4/omap4_mux_data.h b/arch/arm/cpu/armv7/omap4/omap4_mux_data.h
new file mode 100644
index 0000000..00c52f8
--- /dev/null
+++ b/arch/arm/cpu/armv7/omap4/omap4_mux_data.h
@@ -0,0 +1,76 @@ 
+ /*
+ * (C) Copyright 2010
+ * Texas Instruments Incorporated, <www.ti.com>
+ *
+ *	Balaji Krishnamoorthy	<balajitk@ti.com>
+ *	Aneesh V		<aneesh@ti.com>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+#ifndef _OMAP4_MUX_DATA_H_
+#define _OMAP4_MUX_DATA_H_
+
+#include <asm/arch/mux_omap4.h>
+
+const struct pad_conf_entry core_padconf_array_essential[] = {
+
+{GPMC_AD0, (PTU | IEN | OFF_EN | OFF_PD | OFF_IN | M1)}, /* sdmmc2_dat0 */
+{GPMC_AD1, (PTU | IEN | OFF_EN | OFF_PD | OFF_IN | M1)}, /* sdmmc2_dat1 */
+{GPMC_AD2, (PTU | IEN | OFF_EN | OFF_PD | OFF_IN | M1)}, /* sdmmc2_dat2 */
+{GPMC_AD3, (PTU | IEN | OFF_EN | OFF_PD | OFF_IN | M1)}, /* sdmmc2_dat3 */
+{GPMC_AD4, (PTU | IEN | OFF_EN | OFF_PD | OFF_IN | M1)}, /* sdmmc2_dat4 */
+{GPMC_AD5, (PTU | IEN | OFF_EN | OFF_PD | OFF_IN | M1)}, /* sdmmc2_dat5 */
+{GPMC_AD6, (PTU | IEN | OFF_EN | OFF_PD | OFF_IN | M1)}, /* sdmmc2_dat6 */
+{GPMC_AD7, (PTU | IEN | OFF_EN | OFF_PD | OFF_IN | M1)}, /* sdmmc2_dat7 */
+{GPMC_NOE, (PTU | IEN | OFF_EN | OFF_OUT_PTD | M1)},	 /* sdmmc2_clk */
+{GPMC_NWE, (PTU | IEN | OFF_EN | OFF_PD | OFF_IN | M1)}, /* sdmmc2_cmd */
+{SDMMC1_CLK, (PTU | OFF_EN | OFF_OUT_PTD | M0)},	 /* sdmmc1_clk */
+{SDMMC1_CMD, (PTU | IEN | OFF_EN | OFF_PD | OFF_IN | M0)}, /* sdmmc1_cmd */
+{SDMMC1_DAT0, (PTU | IEN | OFF_EN | OFF_PD | OFF_IN | M0)}, /* sdmmc1_dat0 */
+{SDMMC1_DAT1, (PTU | IEN | OFF_EN | OFF_PD | OFF_IN | M0)}, /* sdmmc1_dat1 */
+{SDMMC1_DAT2, (PTU | IEN | OFF_EN | OFF_PD | OFF_IN | M0)}, /* sdmmc1_dat2 */
+{SDMMC1_DAT3, (PTU | IEN | OFF_EN | OFF_PD | OFF_IN | M0)}, /* sdmmc1_dat3 */
+{SDMMC1_DAT4, (PTU | IEN | OFF_EN | OFF_PD | OFF_IN | M0)}, /* sdmmc1_dat4 */
+{SDMMC1_DAT5, (PTU | IEN | OFF_EN | OFF_PD | OFF_IN | M0)}, /* sdmmc1_dat5 */
+{SDMMC1_DAT6, (PTU | IEN | OFF_EN | OFF_PD | OFF_IN | M0)}, /* sdmmc1_dat6 */
+{SDMMC1_DAT7, (PTU | IEN | OFF_EN | OFF_PD | OFF_IN | M0)}, /* sdmmc1_dat7 */
+{I2C1_SCL, (PTU | IEN | M0)},				/* i2c1_scl */
+{I2C1_SDA, (PTU | IEN | M0)},				/* i2c1_sda */
+{I2C2_SCL, (PTU | IEN | M0)},				/* i2c2_scl */
+{I2C2_SDA, (PTU | IEN | M0)},				/* i2c2_sda */
+{I2C3_SCL, (PTU | IEN | M0)},				/* i2c3_scl */
+{I2C3_SDA, (PTU | IEN | M0)},				/* i2c3_sda */
+{I2C4_SCL, (PTU | IEN | M0)},				/* i2c4_scl */
+{I2C4_SDA, (PTU | IEN | M0)},				/* i2c4_sda */
+{UART3_CTS_RCTX, (PTU | IEN | M0)},			/* uart3_tx */
+{UART3_RTS_SD, (M0)},					/* uart3_rts_sd */
+{UART3_RX_IRRX, (IEN | M0)},				/* uart3_rx */
+{UART3_TX_IRTX, (M0)}					/* uart3_tx */
+
+};
+
+const struct pad_conf_entry wkup_padconf_array_essential[] = {
+
+{PAD1_SR_SCL, (PTU | IEN | M0)}, /* sr_scl */
+{PAD0_SR_SDA, (PTU | IEN | M0)}, /* sr_sda */
+{PAD1_SYS_32K, (IEN | M0)}	 /* sys_32k */
+
+};
+
+#endif  /* _OMAP4_MUX_DATA_H_ */
diff --git a/arch/arm/include/asm/arch-omap4/sys_proto.h b/arch/arm/include/asm/arch-omap4/sys_proto.h
index 19da2e1..33a1666 100644
--- a/arch/arm/include/asm/arch-omap4/sys_proto.h
+++ b/arch/arm/include/asm/arch-omap4/sys_proto.h
@@ -24,6 +24,7 @@ 
 #include <asm/arch/omap4.h>
 #include <asm/io.h>
 #include <asm/omap_common.h>
+#include <asm/arch/mux_omap4.h>
 
 struct omap_sysinfo {
 	char *board_string;
@@ -33,7 +34,8 @@  void gpmc_init(void);
 void watchdog_init(void);
 u32 get_device_type(void);
 void invalidate_dcache(u32);
-void set_muxconf_regs(void);
+void do_set_mux(u32 base, struct pad_conf_entry const *array, int size);
+void set_muxconf_regs_non_essential(void);
 void sr32(void *, u32, u32, u32);
 u32 wait_on_value(u32, u32, void *, u32);
 void sdelay(unsigned long);
diff --git a/board/ti/panda/panda.c b/board/ti/panda/panda.c
index 78e1910..9afed80 100644
--- a/board/ti/panda/panda.c
+++ b/board/ti/panda/panda.c
@@ -25,7 +25,7 @@ 
 #include <asm/arch/sys_proto.h>
 #include <asm/arch/mmc_host_def.h>
 
-#include "panda.h"
+#include "panda_mux_data.h"
 
 DECLARE_GLOBAL_DATA_PTR;
 
@@ -65,27 +65,14 @@  int misc_init_r(void)
 	return 0;
 }
 
-void do_set_mux(u32 base, struct pad_conf_entry const *array, int size)
+void set_muxconf_regs_non_essential(void)
 {
-	int i;
-	struct pad_conf_entry *pad = (struct pad_conf_entry *) array;
-
-	for (i = 0; i < size; i++, pad++)
-		writew(pad->val, base + pad->offset);
-}
-
-/**
- * @brief set_muxconf_regs Setting up the configuration Mux registers
- * specific to the board.
- */
-void set_muxconf_regs(void)
-{
-	do_set_mux(CONTROL_PADCONF_CORE, core_padconf_array,
-		   sizeof(core_padconf_array) /
+	do_set_mux(CONTROL_PADCONF_CORE, core_padconf_array_non_essential,
+		   sizeof(core_padconf_array_non_essential) /
 		   sizeof(struct pad_conf_entry));
 
-	do_set_mux(CONTROL_PADCONF_WKUP, wkup_padconf_array,
-		   sizeof(wkup_padconf_array) /
+	do_set_mux(CONTROL_PADCONF_WKUP, wkup_padconf_array_non_essential,
+		   sizeof(wkup_padconf_array_non_essential) /
 		   sizeof(struct pad_conf_entry));
 }
 
diff --git a/board/ti/panda/panda.h b/board/ti/panda/panda_mux_data.h
similarity index 83%
rename from board/ti/panda/panda.h
rename to board/ti/panda/panda_mux_data.h
index e3d090e..8bb7fe5 100644
--- a/board/ti/panda/panda.h
+++ b/board/ti/panda/panda_mux_data.h
@@ -24,21 +24,13 @@ 
  * MA 02111-1307 USA
  */
 
-#ifndef _PANDA_H_
-#define _PANDA_H_
+#ifndef _PANDA_MUX_DATA_H_
+#define _PANDA_MUX_DATA_H_
 
 #include <asm/io.h>
 #include <asm/arch/mux_omap4.h>
 
-const struct pad_conf_entry core_padconf_array[] = {
-	{GPMC_AD0, (PTU | IEN | OFF_EN | OFF_PD | OFF_IN | M1)},	/* sdmmc2_dat0 */
-	{GPMC_AD1, (PTU | IEN | OFF_EN | OFF_PD | OFF_IN | M1)}, 	/* sdmmc2_dat1 */
-	{GPMC_AD2, (PTU | IEN | OFF_EN | OFF_PD | OFF_IN | M1)},	/* sdmmc2_dat2 */
-	{GPMC_AD3, (PTU | IEN | OFF_EN | OFF_PD | OFF_IN | M1)},	/* sdmmc2_dat3 */
-	{GPMC_AD4, (PTU | IEN | OFF_EN | OFF_PD | OFF_IN | M1)},	/* sdmmc2_dat4 */
-	{GPMC_AD5, (PTU | IEN | OFF_EN | OFF_PD | OFF_IN | M1)},	/* sdmmc2_dat5 */
-	{GPMC_AD6, (PTU | IEN | OFF_EN | OFF_PD | OFF_IN | M1)},	/* sdmmc2_dat6 */
-	{GPMC_AD7, (PTU | IEN | OFF_EN | OFF_PD | OFF_IN | M1)},	/* sdmmc2_dat7 */
+const struct pad_conf_entry core_padconf_array_non_essential[] = {
 	{GPMC_AD8, (PTU | IEN | OFF_EN | OFF_PD | OFF_IN | M3)},	/* gpio_32 */
 	{GPMC_AD9, (PTU | IEN | M3)},					/* gpio_33 */
 	{GPMC_AD10, (PTU | IEN | M3)},					/* gpio_34 */
@@ -64,8 +56,6 @@  const struct pad_conf_entry core_padconf_array[] = {
 	{GPMC_NWP, (M3)},						/* gpio_54 */
 	{GPMC_CLK, (PTD | M3)},						/* gpio_55 */
 	{GPMC_NADV_ALE, (M3)},						/* gpio_56 */
-	{GPMC_NOE, (PTU | IEN | OFF_EN | OFF_OUT_PTD | M1)},		/* sdmmc2_clk */
-	{GPMC_NWE, (PTU | IEN | OFF_EN | OFF_PD | OFF_IN | M1)},	/* sdmmc2_cmd */
 	{GPMC_NBE0_CLE, (M3)},						/* gpio_59 */
 	{GPMC_NBE1, (PTD | M3)},					/* gpio_60 */
 	{GPMC_WAIT0, (PTU | IEN | M3)},					/* gpio_61 */
@@ -112,16 +102,6 @@  const struct pad_conf_entry core_padconf_array[] = {
 	{USBB1_HSIC_STROBE, (IEN | OFF_EN | OFF_PD | OFF_IN | M0)},	/* usbb1_hsic_strobe */
 	{USBC1_ICUSB_DP, (IEN | M0)},					/* usbc1_icusb_dp */
 	{USBC1_ICUSB_DM, (IEN | M0)},					/* usbc1_icusb_dm */
-	{SDMMC1_CLK, (PTU | OFF_EN | OFF_OUT_PTD | M0)},		/* sdmmc1_clk */
-	{SDMMC1_CMD, (PTU | IEN | OFF_EN | OFF_PD | OFF_IN | M0)},	/* sdmmc1_cmd */
-	{SDMMC1_DAT0, (PTU | IEN | OFF_EN | OFF_PD | OFF_IN | M0)},	/* sdmmc1_dat0 */
-	{SDMMC1_DAT1, (PTU | IEN | OFF_EN | OFF_PD | OFF_IN | M0)},	/* sdmmc1_dat1 */
-	{SDMMC1_DAT2, (PTU | IEN | OFF_EN | OFF_PD | OFF_IN | M0)},	/* sdmmc1_dat2 */
-	{SDMMC1_DAT3, (PTU | IEN | OFF_EN | OFF_PD | OFF_IN | M0)},	/* sdmmc1_dat3 */
-	{SDMMC1_DAT4, (PTU | IEN | OFF_EN | OFF_PD | OFF_IN | M0)},	/* sdmmc1_dat4 */
-	{SDMMC1_DAT5, (PTU | IEN | OFF_EN | OFF_PD | OFF_IN | M0)},	/* sdmmc1_dat5 */
-	{SDMMC1_DAT6, (PTU | IEN | OFF_EN | OFF_PD | OFF_IN | M0)},	/* sdmmc1_dat6 */
-	{SDMMC1_DAT7, (PTU | IEN | OFF_EN | OFF_PD | OFF_IN | M0)},	/* sdmmc1_dat7 */
 	{ABE_MCBSP2_CLKX, (IEN | OFF_EN | OFF_PD | OFF_IN | M0)},	/* abe_mcbsp2_clkx */
 	{ABE_MCBSP2_DR, (IEN | OFF_EN | OFF_OUT_PTD | M0)},		/* abe_mcbsp2_dr */
 	{ABE_MCBSP2_DX, (OFF_EN | OFF_OUT_PTD | M0)},			/* abe_mcbsp2_dx */
@@ -144,14 +124,6 @@  const struct pad_conf_entry core_padconf_array[] = {
 	{UART2_RX, (PTU | IEN | M0)},					/* uart2_rx */
 	{UART2_TX, (M0)},						/* uart2_tx */
 	{HDQ_SIO, (M3)},						/* gpio_127 */
-	{I2C1_SCL, (PTU | IEN | M0)},					/* i2c1_scl */
-	{I2C1_SDA, (PTU | IEN | M0)},					/* i2c1_sda */
-	{I2C2_SCL, (PTU | IEN | M0)},					/* i2c2_scl */
-	{I2C2_SDA, (PTU | IEN | M0)},					/* i2c2_sda */
-	{I2C3_SCL, (PTU | IEN | M0)},					/* i2c3_scl */
-	{I2C3_SDA, (PTU | IEN | M0)},					/* i2c3_sda */
-	{I2C4_SCL, (PTU | IEN | M0)},					/* i2c4_scl */
-	{I2C4_SDA, (PTU | IEN | M0)},					/* i2c4_sda */
 	{MCSPI1_CLK, (IEN | OFF_EN | OFF_PD | OFF_IN | M0)},		/* mcspi1_clk */
 	{MCSPI1_SOMI, (IEN | OFF_EN | OFF_PD | OFF_IN | M0)},		/* mcspi1_somi */
 	{MCSPI1_SIMO, (IEN | OFF_EN | OFF_PD | OFF_IN | M0)},		/* mcspi1_simo */
@@ -159,10 +131,6 @@  const struct pad_conf_entry core_padconf_array[] = {
 	{MCSPI1_CS1, (PTD | IEN | OFF_EN | OFF_PD | OFF_IN | M3)},	/* mcspi1_cs1 */
 	{MCSPI1_CS2, (PTU | OFF_EN | OFF_OUT_PTU | M3)},		/* gpio_139 */
 	{MCSPI1_CS3, (PTU | IEN | M3)},					/* gpio_140 */
-	{UART3_CTS_RCTX, (PTU | IEN | M0)},				/* uart3_tx */
-	{UART3_RTS_SD, (M0)},						/* uart3_rts_sd */
-	{UART3_RX_IRRX, (IEN | M0)},					/* uart3_rx */
-	{UART3_TX_IRTX, (M0)},						/* uart3_tx */
 	{SDMMC5_CLK, (PTU | IEN | OFF_EN | OFF_OUT_PTD | M0)},		/* sdmmc5_clk */
 	{SDMMC5_CMD, (PTU | IEN | OFF_EN | OFF_PD | OFF_IN | M0)},	/* sdmmc5_cmd */
 	{SDMMC5_DAT0, (PTU | IEN | OFF_EN | OFF_PD | OFF_IN | M0)},	/* sdmmc5_dat0 */
@@ -236,14 +204,12 @@  const struct pad_conf_entry core_padconf_array[] = {
 	{DPM_EMU19, (IEN | M5)},					/* dispc2_data0 */
 };
 
-const struct pad_conf_entry wkup_padconf_array[] = {
+const struct pad_conf_entry wkup_padconf_array_non_essential[] = {
 	{PAD0_SIM_IO, (IEN | M0)},					/* sim_io */
 	{PAD1_SIM_CLK, (M0)},						/* sim_clk */
 	{PAD0_SIM_RESET, (M0)},						/* sim_reset */
 	{PAD1_SIM_CD, (PTU | IEN | M0)},				/* sim_cd */
 	{PAD0_SIM_PWRCTRL, (M0)},					/* sim_pwrctrl */
-	{PAD1_SR_SCL, (PTU | IEN | M0)},				/* sr_scl */
-	{PAD0_SR_SDA, (PTU | IEN | M0)},				/* sr_sda */
 	{PAD1_FREF_XTAL_IN, (M0)},					/* # */
 	{PAD0_FREF_SLICER_IN, (M0)},					/* fref_slicer_in */
 	{PAD1_FREF_CLK_IOREQ, (M0)},					/* fref_clk_ioreq */
@@ -252,7 +218,6 @@  const struct pad_conf_entry wkup_padconf_array[] = {
 	{PAD0_FREF_CLK3_OUT, (M0)},					/* fref_clk3_out */
 	{PAD1_FREF_CLK4_REQ, (PTU | OFF_EN | OFF_OUT_PTU | M3)},	/* led status_1 */
 	{PAD0_FREF_CLK4_OUT, (PTU | OFF_EN | OFF_OUT_PTU | M3)},	/* led status_2 */
-	{PAD1_SYS_32K, (IEN | M0)},					/* sys_32k */
 	{PAD0_SYS_NRESPWRON, (M0)},					/* sys_nrespwron */
 	{PAD1_SYS_NRESWARM, (M0)},					/* sys_nreswarm */
 	{PAD0_SYS_PWR_REQ, (PTU | M0)},					/* sys_pwr_req */
@@ -261,4 +226,4 @@  const struct pad_conf_entry wkup_padconf_array[] = {
 	{PAD1_SYS_BOOT7, (IEN | M3)},					/* gpio_wk10 */
 };
 
-#endif
+#endif /* _PANDA_MUX_DATA_H_ */
diff --git a/board/ti/sdp4430/sdp.c b/board/ti/sdp4430/sdp.c
index b13c4c5..a5ea682 100644
--- a/board/ti/sdp4430/sdp.c
+++ b/board/ti/sdp4430/sdp.c
@@ -27,7 +27,7 @@ 
 #include <asm/arch/sys_proto.h>
 #include <asm/arch/mmc_host_def.h>
 
-#include "sdp.h"
+#include "sdp4430_mux_data.h"
 
 DECLARE_GLOBAL_DATA_PTR;
 
@@ -70,27 +70,14 @@  int misc_init_r(void)
 	return 0;
 }
 
-void do_set_mux(u32 base, struct pad_conf_entry const *array, int size)
+void set_muxconf_regs_non_essential(void)
 {
-	int i;
-	struct pad_conf_entry *pad = (struct pad_conf_entry *) array;
-
-	for (i = 0; i < size; i++, pad++)
-		writew(pad->val, base + pad->offset);
-}
-
-/**
- * @brief set_muxconf_regs Setting up the configuration Mux registers
- * specific to the board.
- */
-void set_muxconf_regs(void)
-{
-	do_set_mux(CONTROL_PADCONF_CORE, core_padconf_array,
-		   sizeof(core_padconf_array) /
+	do_set_mux(CONTROL_PADCONF_CORE, core_padconf_array_non_essential,
+		   sizeof(core_padconf_array_non_essential) /
 		   sizeof(struct pad_conf_entry));
 
-	do_set_mux(CONTROL_PADCONF_WKUP, wkup_padconf_array,
-		   sizeof(wkup_padconf_array) /
+	do_set_mux(CONTROL_PADCONF_WKUP, wkup_padconf_array_non_essential,
+		   sizeof(wkup_padconf_array_non_essential) /
 		   sizeof(struct pad_conf_entry));
 }
 
diff --git a/board/ti/sdp4430/sdp.h b/board/ti/sdp4430/sdp4430_mux_data.h
similarity index 83%
rename from board/ti/sdp4430/sdp.h
rename to board/ti/sdp4430/sdp4430_mux_data.h
index bf41067..e6081dc 100644
--- a/board/ti/sdp4430/sdp.h
+++ b/board/ti/sdp4430/sdp4430_mux_data.h
@@ -23,22 +23,12 @@ 
  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  * MA 02111-1307 USA
  */
+#ifndef _SDP4430_MUX_DATA_H
+#define _SDP4430_MUX_DATA_H
 
-#ifndef _SDP_H_
-#define _SDP_H_
-
-#include <asm/io.h>
 #include <asm/arch/mux_omap4.h>
 
-const struct pad_conf_entry core_padconf_array[] = {
-	{GPMC_AD0, (PTU | IEN | OFF_EN | OFF_PD | OFF_IN | M1)},	/* sdmmc2_dat0 */
-	{GPMC_AD1, (PTU | IEN | OFF_EN | OFF_PD | OFF_IN | M1)}, 	/* sdmmc2_dat1 */
-	{GPMC_AD2, (PTU | IEN | OFF_EN | OFF_PD | OFF_IN | M1)},	/* sdmmc2_dat2 */
-	{GPMC_AD3, (PTU | IEN | OFF_EN | OFF_PD | OFF_IN | M1)},	/* sdmmc2_dat3 */
-	{GPMC_AD4, (PTU | IEN | OFF_EN | OFF_PD | OFF_IN | M1)},	/* sdmmc2_dat4 */
-	{GPMC_AD5, (PTU | IEN | OFF_EN | OFF_PD | OFF_IN | M1)},	/* sdmmc2_dat5 */
-	{GPMC_AD6, (PTU | IEN | OFF_EN | OFF_PD | OFF_IN | M1)},	/* sdmmc2_dat6 */
-	{GPMC_AD7, (PTU | IEN | OFF_EN | OFF_PD | OFF_IN | M1)},	/* sdmmc2_dat7 */
+const struct pad_conf_entry core_padconf_array_non_essential[] = {
 	{GPMC_AD8, (PTU | IEN | OFF_EN | OFF_PD | OFF_IN | M3)},	/* gpio_32 */
 	{GPMC_AD9, (PTU | IEN | M3)},					/* gpio_33 */
 	{GPMC_AD10, (PTU | IEN | M3)},					/* gpio_34 */
@@ -64,8 +54,6 @@  const struct pad_conf_entry core_padconf_array[] = {
 	{GPMC_NWP, (M3)},						/* gpio_54 */
 	{GPMC_CLK, (PTD | M3)},						/* gpio_55 */
 	{GPMC_NADV_ALE, (M3)},						/* gpio_56 */
-	{GPMC_NOE, (PTU | IEN | OFF_EN | OFF_OUT_PTD | M1)},		/* sdmmc2_clk */
-	{GPMC_NWE, (PTU | IEN | OFF_EN | OFF_PD | OFF_IN | M1)},	/* sdmmc2_cmd */
 	{GPMC_NBE0_CLE, (M3)},						/* gpio_59 */
 	{GPMC_NBE1, (PTD | M3)},					/* gpio_60 */
 	{GPMC_WAIT0, (PTU | IEN | M3)},					/* gpio_61 */
@@ -112,16 +100,6 @@  const struct pad_conf_entry core_padconf_array[] = {
 	{USBB1_HSIC_STROBE, (IEN | OFF_EN | OFF_PD | OFF_IN | M0)},	/* usbb1_hsic_strobe */
 	{USBC1_ICUSB_DP, (IEN | M0)},					/* usbc1_icusb_dp */
 	{USBC1_ICUSB_DM, (IEN | M0)},					/* usbc1_icusb_dm */
-	{SDMMC1_CLK, (PTU | OFF_EN | OFF_OUT_PTD | M0)},		/* sdmmc1_clk */
-	{SDMMC1_CMD, (PTU | IEN | OFF_EN | OFF_PD | OFF_IN | M0)},	/* sdmmc1_cmd */
-	{SDMMC1_DAT0, (PTU | IEN | OFF_EN | OFF_PD | OFF_IN | M0)},	/* sdmmc1_dat0 */
-	{SDMMC1_DAT1, (PTU | IEN | OFF_EN | OFF_PD | OFF_IN | M0)},	/* sdmmc1_dat1 */
-	{SDMMC1_DAT2, (PTU | IEN | OFF_EN | OFF_PD | OFF_IN | M0)},	/* sdmmc1_dat2 */
-	{SDMMC1_DAT3, (PTU | IEN | OFF_EN | OFF_PD | OFF_IN | M0)},	/* sdmmc1_dat3 */
-	{SDMMC1_DAT4, (PTU | IEN | OFF_EN | OFF_PD | OFF_IN | M0)},	/* sdmmc1_dat4 */
-	{SDMMC1_DAT5, (PTU | IEN | OFF_EN | OFF_PD | OFF_IN | M0)},	/* sdmmc1_dat5 */
-	{SDMMC1_DAT6, (PTU | IEN | OFF_EN | OFF_PD | OFF_IN | M0)},	/* sdmmc1_dat6 */
-	{SDMMC1_DAT7, (PTU | IEN | OFF_EN | OFF_PD | OFF_IN | M0)},	/* sdmmc1_dat7 */
 	{ABE_MCBSP2_CLKX, (IEN | OFF_EN | OFF_PD | OFF_IN | M0)},	/* abe_mcbsp2_clkx */
 	{ABE_MCBSP2_DR, (IEN | OFF_EN | OFF_OUT_PTD | M0)},		/* abe_mcbsp2_dr */
 	{ABE_MCBSP2_DX, (OFF_EN | OFF_OUT_PTD | M0)},			/* abe_mcbsp2_dx */
@@ -144,14 +122,6 @@  const struct pad_conf_entry core_padconf_array[] = {
 	{UART2_RX, (PTU | IEN | M0)},					/* uart2_rx */
 	{UART2_TX, (M0)},						/* uart2_tx */
 	{HDQ_SIO, (M3)},						/* gpio_127 */
-	{I2C1_SCL, (PTU | IEN | M0)},					/* i2c1_scl */
-	{I2C1_SDA, (PTU | IEN | M0)},					/* i2c1_sda */
-	{I2C2_SCL, (PTU | IEN | M0)},					/* i2c2_scl */
-	{I2C2_SDA, (PTU | IEN | M0)},					/* i2c2_sda */
-	{I2C3_SCL, (PTU | IEN | M0)},					/* i2c3_scl */
-	{I2C3_SDA, (PTU | IEN | M0)},					/* i2c3_sda */
-	{I2C4_SCL, (PTU | IEN | M0)},					/* i2c4_scl */
-	{I2C4_SDA, (PTU | IEN | M0)},					/* i2c4_sda */
 	{MCSPI1_CLK, (IEN | OFF_EN | OFF_PD | OFF_IN | M0)},		/* mcspi1_clk */
 	{MCSPI1_SOMI, (IEN | OFF_EN | OFF_PD | OFF_IN | M0)},		/* mcspi1_somi */
 	{MCSPI1_SIMO, (IEN | OFF_EN | OFF_PD | OFF_IN | M0)},		/* mcspi1_simo */
@@ -159,10 +129,6 @@  const struct pad_conf_entry core_padconf_array[] = {
 	{MCSPI1_CS1, (PTD | IEN | OFF_EN | OFF_PD | OFF_IN | M3)},	/* mcspi1_cs1 */
 	{MCSPI1_CS2, (PTU | OFF_EN | OFF_OUT_PTU | M3)},		/* gpio_139 */
 	{MCSPI1_CS3, (PTU | IEN | M3)},					/* gpio_140 */
-	{UART3_CTS_RCTX, (PTU | IEN | M0)},				/* uart3_tx */
-	{UART3_RTS_SD, (M0)},						/* uart3_rts_sd */
-	{UART3_RX_IRRX, (IEN | M0)},					/* uart3_rx */
-	{UART3_TX_IRTX, (M0)},						/* uart3_tx */
 	{SDMMC5_CLK, (PTU | IEN | OFF_EN | OFF_OUT_PTD | M0)},		/* sdmmc5_clk */
 	{SDMMC5_CMD, (PTU | IEN | OFF_EN | OFF_PD | OFF_IN | M0)},	/* sdmmc5_cmd */
 	{SDMMC5_DAT0, (PTU | IEN | OFF_EN | OFF_PD | OFF_IN | M0)},	/* sdmmc5_dat0 */
@@ -236,14 +202,12 @@  const struct pad_conf_entry core_padconf_array[] = {
 	{DPM_EMU19, (IEN | M5)},					/* dispc2_data0 */
 };
 
-const struct pad_conf_entry wkup_padconf_array[] = {
+const struct pad_conf_entry wkup_padconf_array_non_essential[] = {
 	{PAD0_SIM_IO, (IEN | M0)},		/* sim_io */
 	{PAD1_SIM_CLK, (M0)},			/* sim_clk */
 	{PAD0_SIM_RESET, (M0)},			/* sim_reset */
 	{PAD1_SIM_CD, (PTU | IEN | M0)},	/* sim_cd */
 	{PAD0_SIM_PWRCTRL, (M0)},		/* sim_pwrctrl */
-	{PAD1_SR_SCL, (PTU | IEN | M0)},	/* sr_scl */
-	{PAD0_SR_SDA, (PTU | IEN | M0)},	/* sr_sda */
 	{PAD1_FREF_XTAL_IN, (M0)},		/* # */
 	{PAD0_FREF_SLICER_IN, (M0)},		/* fref_slicer_in */
 	{PAD1_FREF_CLK_IOREQ, (M0)},		/* fref_clk_ioreq */
@@ -252,7 +216,6 @@  const struct pad_conf_entry wkup_padconf_array[] = {
 	{PAD0_FREF_CLK3_OUT, (M0)},		/* fref_clk3_out */
 	{PAD1_FREF_CLK4_REQ, (PTU | IEN | M0)},	/* # */
 	{PAD0_FREF_CLK4_OUT, (M0)},		/* # */
-	{PAD1_SYS_32K, (IEN | M0)},		/* sys_32k */
 	{PAD0_SYS_NRESPWRON, (M0)},		/* sys_nrespwron */
 	{PAD1_SYS_NRESWARM, (M0)},		/* sys_nreswarm */
 	{PAD0_SYS_PWR_REQ, (PTU | M0)},		/* sys_pwr_req */
@@ -261,4 +224,4 @@  const struct pad_conf_entry wkup_padconf_array[] = {
 	{PAD1_SYS_BOOT7, (IEN | M3)},		/* gpio_wk10 */
 };
 
-#endif
+#endif /* _SDP4430_MUX_DATA_H */