ARMV7: Add pad mux support for OMAP4

Add functional multiplexing support for OMAP4 pads.
Configure all the pads for the OMAP4430 SDP
and OMAP4 Panda boards

Signed-off-by: Steve Sakoman <steve@sakoman.com>
Signed-off-by: Aneesh V <aneesh@ti.com>
Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>

4 files changed, 358 insertions, 0 deletions

diff --git a/arch/arm/cpu/armv7/omap4/board.c b/arch/arm/cpu/armv7/omap4/board.c
index 5bf7173..2e80d1f 100644
--- a/arch/arm/cpu/armv7/omap4/board.c
+++ b/arch/arm/cpu/armv7/omap4/board.c
@@ -88,3 +88,14 @@ int checkboard(void)
 	return 0;
 }
 
+/*
+* This function is called by start_armboot. You can reliably use static
+* data. Any boot-time function that require static data should be
+* called from here
+*/
+int arch_cpu_init(void)
+{
+	set_muxconf_regs();
+	return 0;
+}
+
diff --git a/arch/arm/include/asm/arch-omap4/mux_omap4.h b/arch/arm/include/asm/arch-omap4/mux_omap4.h
new file mode 100644
index 0000000..019574b
--- /dev/null
+++ b/arch/arm/include/asm/arch-omap4/mux_omap4.h
@@ -0,0 +1,344 @@
+/*
+ * (C) Copyright 2004-2009
+ * Texas Instruments Incorporated
+ * Richard Woodruff		<r-woodruff2@ti.com>
+ * Aneesh V			<aneesh@ti.com>
+ * Balaji Krishnamoorthy	<balajitk@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 _MUX_OMAP4_H_
+#define _MUX_OMAP4_H_
+
+#include <asm/types.h>
+
+struct pad_conf_entry {
+
+	u16 offset;
+
+	u16 val;
+
+} __attribute__ ((packed));
+
+#ifdef CONFIG_OFF_PADCONF
+#define OFF_PD          (1 << 12)
+#define OFF_PU          (3 << 12)
+#define OFF_OUT_PTD     (0 << 10)
+#define OFF_OUT_PTU     (2 << 10)
+#define OFF_IN          (1 << 10)
+#define OFF_OUT         (0 << 10)
+#define OFF_EN          (1 << 9)
+#else
+#define OFF_PD          (0 << 12)
+#define OFF_PU          (0 << 12)
+#define OFF_OUT_PTD     (0 << 10)
+#define OFF_OUT_PTU     (0 << 10)
+#define OFF_IN          (0 << 10)
+#define OFF_OUT         (0 << 10)
+#define OFF_EN          (0 << 9)
+#endif
+
+#define IEN             (1 << 8)
+#define IDIS            (0 << 8)
+#define PTU             (3 << 3)
+#define PTD             (1 << 3)
+#define EN              (1 << 3)
+#define DIS             (0 << 3)
+
+#define M0              0
+#define M1              1
+#define M2              2
+#define M3              3
+#define M4              4
+#define M5              5
+#define M6              6
+#define M7              7
+
+#define SAFE_MODE	M7
+
+#ifdef CONFIG_OFF_PADCONF
+#define OFF_IN_PD       (OFF_PD | OFF_IN | OFF_EN)
+#define OFF_IN_PU       (OFF_PU | OFF_IN | OFF_EN)
+#define OFF_OUT_PD      (OFF_OUT_PTD | OFF_OUT | OFF_EN)
+#define OFF_OUT_PU      (OFF_OUT_PTU | OFF_OUT | OFF_EN)
+#else
+#define OFF_IN_PD       0
+#define OFF_IN_PU       0
+#define OFF_OUT_PD      0
+#define OFF_OUT_PU      0
+#endif
+
+#define CORE_REVISION		0x0000
+#define CORE_HWINFO		0x0004
+#define CORE_SYSCONFIG		0x0010
+#define GPMC_AD0		0x0040
+#define GPMC_AD1		0x0042
+#define GPMC_AD2		0x0044
+#define GPMC_AD3		0x0046
+#define GPMC_AD4		0x0048
+#define GPMC_AD5		0x004A
+#define GPMC_AD6		0x004C
+#define GPMC_AD7		0x004E
+#define GPMC_AD8		0x0050
+#define GPMC_AD9		0x0052
+#define GPMC_AD10		0x0054
+#define GPMC_AD11		0x0056
+#define GPMC_AD12		0x0058
+#define GPMC_AD13		0x005A
+#define GPMC_AD14		0x005C
+#define GPMC_AD15		0x005E
+#define GPMC_A16		0x0060
+#define GPMC_A17		0x0062
+#define GPMC_A18		0x0064
+#define GPMC_A19		0x0066
+#define GPMC_A20		0x0068
+#define GPMC_A21		0x006A
+#define GPMC_A22		0x006C
+#define GPMC_A23		0x006E
+#define GPMC_A24		0x0070
+#define GPMC_A25		0x0072
+#define GPMC_NCS0		0x0074
+#define GPMC_NCS1		0x0076
+#define GPMC_NCS2		0x0078
+#define GPMC_NCS3		0x007A
+#define GPMC_NWP		0x007C
+#define GPMC_CLK		0x007E
+#define GPMC_NADV_ALE		0x0080
+#define GPMC_NOE		0x0082
+#define GPMC_NWE		0x0084
+#define GPMC_NBE0_CLE		0x0086
+#define GPMC_NBE1		0x0088
+#define GPMC_WAIT0		0x008A
+#define GPMC_WAIT1		0x008C
+#define C2C_DATA11		0x008E
+#define C2C_DATA12		0x0090
+#define C2C_DATA13		0x0092
+#define C2C_DATA14		0x0094
+#define C2C_DATA15		0x0096
+#define HDMI_HPD		0x0098
+#define HDMI_CEC		0x009A
+#define HDMI_DDC_SCL		0x009C
+#define HDMI_DDC_SDA		0x009E
+#define CSI21_DX0		0x00A0
+#define CSI21_DY0		0x00A2
+#define CSI21_DX1		0x00A4
+#define CSI21_DY1		0x00A6
+#define CSI21_DX2		0x00A8
+#define CSI21_DY2		0x00AA
+#define CSI21_DX3		0x00AC
+#define CSI21_DY3		0x00AE
+#define CSI21_DX4		0x00B0
+#define CSI21_DY4		0x00B2
+#define CSI22_DX0		0x00B4
+#define CSI22_DY0		0x00B6
+#define CSI22_DX1		0x00B8
+#define CSI22_DY1		0x00BA
+#define CAM_SHUTTER		0x00BC
+#define CAM_STROBE		0x00BE
+#define CAM_GLOBALRESET		0x00C0
+#define USBB1_ULPITLL_CLK	0x00C2
+#define USBB1_ULPITLL_STP	0x00C4
+#define USBB1_ULPITLL_DIR	0x00C6
+#define USBB1_ULPITLL_NXT	0x00C8
+#define USBB1_ULPITLL_DAT0	0x00CA
+#define USBB1_ULPITLL_DAT1	0x00CC
+#define USBB1_ULPITLL_DAT2	0x00CE
+#define USBB1_ULPITLL_DAT3	0x00D0
+#define USBB1_ULPITLL_DAT4	0x00D2
+#define USBB1_ULPITLL_DAT5	0x00D4
+#define USBB1_ULPITLL_DAT6	0x00D6
+#define USBB1_ULPITLL_DAT7	0x00D8
+#define USBB1_HSIC_DATA		0x00DA
+#define USBB1_HSIC_STROBE	0x00DC
+#define USBC1_ICUSB_DP		0x00DE
+#define USBC1_ICUSB_DM		0x00E0
+#define SDMMC1_CLK		0x00E2
+#define SDMMC1_CMD		0x00E4
+#define SDMMC1_DAT0		0x00E6
+#define SDMMC1_DAT1		0x00E8
+#define SDMMC1_DAT2		0x00EA
+#define SDMMC1_DAT3		0x00EC
+#define SDMMC1_DAT4		0x00EE
+#define SDMMC1_DAT5		0x00F0
+#define SDMMC1_DAT6		0x00F2
+#define SDMMC1_DAT7		0x00F4
+#define ABE_MCBSP2_CLKX		0x00F6
+#define ABE_MCBSP2_DR		0x00F8
+#define ABE_MCBSP2_DX		0x00FA
+#define ABE_MCBSP2_FSX		0x00FC
+#define ABE_MCBSP1_CLKX		0x00FE
+#define ABE_MCBSP1_DR		0x0100
+#define ABE_MCBSP1_DX		0x0102
+#define ABE_MCBSP1_FSX		0x0104
+#define ABE_PDM_UL_DATA		0x0106
+#define ABE_PDM_DL_DATA		0x0108
+#define ABE_PDM_FRAME		0x010A
+#define ABE_PDM_LB_CLK		0x010C
+#define ABE_CLKS		0x010E
+#define ABE_DMIC_CLK1		0x0110
+#define ABE_DMIC_DIN1		0x0112
+#define ABE_DMIC_DIN2		0x0114
+#define ABE_DMIC_DIN3		0x0116
+#define UART2_CTS		0x0118
+#define UART2_RTS		0x011A
+#define UART2_RX		0x011C
+#define UART2_TX		0x011E
+#define HDQ_SIO			0x0120
+#define I2C1_SCL		0x0122
+#define I2C1_SDA		0x0124
+#define I2C2_SCL		0x0126
+#define I2C2_SDA		0x0128
+#define I2C3_SCL		0x012A
+#define I2C3_SDA		0x012C
+#define I2C4_SCL		0x012E
+#define I2C4_SDA		0x0130
+#define MCSPI1_CLK		0x0132
+#define MCSPI1_SOMI		0x0134
+#define MCSPI1_SIMO		0x0136
+#define MCSPI1_CS0		0x0138
+#define MCSPI1_CS1		0x013A
+#define MCSPI1_CS2		0x013C
+#define MCSPI1_CS3		0x013E
+#define UART3_CTS_RCTX		0x0140
+#define UART3_RTS_SD		0x0142
+#define UART3_RX_IRRX		0x0144
+#define UART3_TX_IRTX		0x0146
+#define SDMMC5_CLK		0x0148
+#define SDMMC5_CMD		0x014A
+#define SDMMC5_DAT0		0x014C
+#define SDMMC5_DAT1		0x014E
+#define SDMMC5_DAT2		0x0150
+#define SDMMC5_DAT3		0x0152
+#define MCSPI4_CLK		0x0154
+#define MCSPI4_SIMO		0x0156
+#define MCSPI4_SOMI		0x0158
+#define MCSPI4_CS0		0x015A
+#define UART4_RX		0x015C
+#define UART4_TX		0x015E
+#define USBB2_ULPITLL_CLK	0x0160
+#define USBB2_ULPITLL_STP	0x0162
+#define USBB2_ULPITLL_DIR	0x0164
+#define USBB2_ULPITLL_NXT	0x0166
+#define USBB2_ULPITLL_DAT0	0x0168
+#define USBB2_ULPITLL_DAT1	0x016A
+#define USBB2_ULPITLL_DAT2	0x016C
+#define USBB2_ULPITLL_DAT3	0x016E
+#define USBB2_ULPITLL_DAT4	0x0170
+#define USBB2_ULPITLL_DAT5	0x0172
+#define USBB2_ULPITLL_DAT6	0x0174
+#define USBB2_ULPITLL_DAT7	0x0176
+#define USBB2_HSIC_DATA		0x0178
+#define USBB2_HSIC_STROBE	0x017A
+#define UNIPRO_TX0		0x017C
+#define UNIPRO_TY0		0x017E
+#define UNIPRO_TX1		0x0180
+#define UNIPRO_TY1		0x0182
+#define UNIPRO_TX2		0x0184
+#define UNIPRO_TY2		0x0186
+#define UNIPRO_RX0		0x0188
+#define UNIPRO_RY0		0x018A
+#define UNIPRO_RX1		0x018C
+#define UNIPRO_RY1		0x018E
+#define UNIPRO_RX2		0x0190
+#define UNIPRO_RY2		0x0192
+#define USBA0_OTG_CE		0x0194
+#define USBA0_OTG_DP		0x0196
+#define USBA0_OTG_DM		0x0198
+#define FREF_CLK1_OUT		0x019A
+#define FREF_CLK2_OUT		0x019C
+#define SYS_NIRQ1		0x019E
+#define SYS_NIRQ2		0x01A0
+#define SYS_BOOT0		0x01A2
+#define SYS_BOOT1		0x01A4
+#define SYS_BOOT2		0x01A6
+#define SYS_BOOT3		0x01A8
+#define SYS_BOOT4		0x01AA
+#define SYS_BOOT5		0x01AC
+#define DPM_EMU0		0x01AE
+#define DPM_EMU1		0x01B0
+#define DPM_EMU2		0x01B2
+#define DPM_EMU3		0x01B4
+#define DPM_EMU4		0x01B6
+#define DPM_EMU5		0x01B8
+#define DPM_EMU6		0x01BA
+#define DPM_EMU7		0x01BC
+#define DPM_EMU8		0x01BE
+#define DPM_EMU9		0x01C0
+#define DPM_EMU10		0x01C2
+#define DPM_EMU11		0x01C4
+#define DPM_EMU12		0x01C6
+#define DPM_EMU13		0x01C8
+#define DPM_EMU14		0x01CA
+#define DPM_EMU15		0x01CC
+#define DPM_EMU16		0x01CE
+#define DPM_EMU17		0x01D0
+#define DPM_EMU18		0x01D2
+#define DPM_EMU19		0x01D4
+#define WAKEUPEVENT_0		0x01D8
+#define WAKEUPEVENT_1		0x01DC
+#define WAKEUPEVENT_2		0x01E0
+#define WAKEUPEVENT_3		0x01E4
+#define WAKEUPEVENT_4		0x01E8
+#define WAKEUPEVENT_5		0x01EC
+#define WAKEUPEVENT_6		0x01F0
+
+#define WKUP_REVISION		0x0000
+#define WKUP_HWINFO		0x0004
+#define WKUP_SYSCONFIG		0x0010
+#define PAD0_SIM_IO		0x0040
+#define PAD1_SIM_CLK		0x0042
+#define PAD0_SIM_RESET		0x0044
+#define PAD1_SIM_CD		0x0046
+#define PAD0_SIM_PWRCTRL		0x0048
+#define PAD1_SR_SCL		0x004A
+#define PAD0_SR_SDA		0x004C
+#define PAD1_FREF_XTAL_IN		0x004E
+#define PAD0_FREF_SLICER_IN	0x0050
+#define PAD1_FREF_CLK_IOREQ	0x0052
+#define PAD0_FREF_CLK0_OUT		0x0054
+#define PAD1_FREF_CLK3_REQ		0x0056
+#define PAD0_FREF_CLK3_OUT		0x0058
+#define PAD1_FREF_CLK4_REQ		0x005A
+#define PAD0_FREF_CLK4_OUT		0x005C
+#define PAD1_SYS_32K		0x005E
+#define PAD0_SYS_NRESPWRON		0x0060
+#define PAD1_SYS_NRESWARM		0x0062
+#define PAD0_SYS_PWR_REQ		0x0064
+#define PAD1_SYS_PWRON_RESET	0x0066
+#define PAD0_SYS_BOOT6		0x0068
+#define PAD1_SYS_BOOT7		0x006A
+#define PAD0_JTAG_NTRST		0x006C
+#define PAD1_JTAG_TCK		0x006D
+#define PAD0_JTAG_RTCK		0x0070
+#define PAD1_JTAG_TMS_TMSC		0x0072
+#define PAD0_JTAG_TDI		0x0074
+#define PAD1_JTAG_TDO		0x0076
+#define PADCONF_WAKEUPEVENT_0	0x007C
+#define CONTROL_SMART1NOPMIO_PADCONF_0		0x05A0
+#define CONTROL_SMART1NOPMIO_PADCONF_1		0x05A4
+#define PADCONF_MODE		0x05A8
+#define CONTROL_XTAL_OSCILLATOR			0x05AC
+#define CONTROL_CONTROL_I2C_2			0x0604
+#define CONTROL_CONTROL_JTAG			0x0608
+#define CONTROL_CONTROL_SYS			0x060C
+#define CONTROL_SPARE_RW		0x0614
+#define CONTROL_SPARE_R		0x0618
+#define CONTROL_SPARE_R_C0		0x061C
+
+#endif /* _MUX_OMAP4_H_ */
diff --git a/arch/arm/include/asm/arch-omap4/omap4.h b/arch/arm/include/asm/arch-omap4/omap4.h
index 5243ea8..79ff22c 100644
--- a/arch/arm/include/asm/arch-omap4/omap4.h
+++ b/arch/arm/include/asm/arch-omap4/omap4.h
@@ -44,6 +44,8 @@
 
 /* CONTROL */
 #define CTRL_BASE		(OMAP44XX_L4_CORE_BASE + 0x2000)
+#define CONTROL_PADCONF_CORE	(OMAP44XX_L4_CORE_BASE + 0x100000)
+#define CONTROL_PADCONF_WKUP	(OMAP44XX_L4_CORE_BASE + 0x31E000)
 
 /* UART */
 #define UART1_BASE		(OMAP44XX_L4_PER_BASE + 0x6a000)
diff --git a/arch/arm/include/asm/arch-omap4/sys_proto.h b/arch/arm/include/asm/arch-omap4/sys_proto.h
index c6fab00..ad0c640 100644
--- a/arch/arm/include/asm/arch-omap4/sys_proto.h
+++ b/arch/arm/include/asm/arch-omap4/sys_proto.h
@@ -32,6 +32,7 @@ void gpmc_init(void);
 void watchdog_init(void);
 u32 get_device_type(void);
 void invalidate_dcache(u32);
+void set_muxconf_regs(void);
 
 extern const struct omap_sysinfo sysinfo;