davinci: update pin-multiplexing support

Update MUX support to be more general and useful across multiple
SoCs in the DaVinci family.

Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>

1 files changed, 174 insertions, 46 deletions

diff --git a/arch/arm/mach-davinci/include/mach/mux.h b/arch/arm/mach-davinci/include/mach/mux.h
index c24b6782804..bae22cb3e27 100644
--- a/arch/arm/mach-davinci/include/mach/mux.h
+++ b/arch/arm/mach-davinci/include/mach/mux.h
@@ -1,55 +1,183 @@
 /*
- * DaVinci pin multiplexing defines
+ * Table of the DAVINCI register configurations for the PINMUX combinations
  *
  * Author: Vladimir Barinov, MontaVista Software, Inc. <source@mvista.com>
  *
+ * Based on linux/include/asm-arm/arch-omap/mux.h:
+ * Copyright (C) 2003 - 2005 Nokia Corporation
+ *
+ * Written by Tony Lindgren
+ *
  * 2007 (c) MontaVista Software, Inc. This file is licensed under
  * the terms of the GNU General Public License version 2. This program
  * is licensed "as is" without any warranty of any kind, whether express
  * or implied.
+ *
+ * Copyright (C) 2008 Texas Instruments.
  */
-#ifndef __ASM_ARCH_MUX_H
-#define __ASM_ARCH_MUX_H
-
-#define DAVINCI_MUX_AEAW0	0
-#define DAVINCI_MUX_AEAW1	1
-#define DAVINCI_MUX_AEAW2	2
-#define DAVINCI_MUX_AEAW3	3
-#define DAVINCI_MUX_AEAW4	4
-#define DAVINCI_MUX_AECS4	10
-#define DAVINCI_MUX_AECS5	11
-#define DAVINCI_MUX_VLYNQWD0	12
-#define DAVINCI_MUX_VLYNQWD1	13
-#define DAVINCI_MUX_VLSCREN	14
-#define DAVINCI_MUX_VLYNQEN	15
-#define DAVINCI_MUX_HDIREN	16
-#define DAVINCI_MUX_ATAEN	17
-#define DAVINCI_MUX_RGB666	22
-#define DAVINCI_MUX_RGB888	23
-#define DAVINCI_MUX_LOEEN	24
-#define DAVINCI_MUX_LFLDEN	25
-#define DAVINCI_MUX_CWEN	26
-#define DAVINCI_MUX_CFLDEN	27
-#define DAVINCI_MUX_HPIEN	29
-#define DAVINCI_MUX_1394EN	30
-#define DAVINCI_MUX_EMACEN	31
-
-#define DAVINCI_MUX_LEVEL2	32
-#define DAVINCI_MUX_UART0	(DAVINCI_MUX_LEVEL2 + 0)
-#define DAVINCI_MUX_UART1	(DAVINCI_MUX_LEVEL2 + 1)
-#define DAVINCI_MUX_UART2	(DAVINCI_MUX_LEVEL2 + 2)
-#define DAVINCI_MUX_U2FLO	(DAVINCI_MUX_LEVEL2 + 3)
-#define DAVINCI_MUX_PWM0	(DAVINCI_MUX_LEVEL2 + 4)
-#define DAVINCI_MUX_PWM1	(DAVINCI_MUX_LEVEL2 + 5)
-#define DAVINCI_MUX_PWM2	(DAVINCI_MUX_LEVEL2 + 6)
-#define DAVINCI_MUX_I2C		(DAVINCI_MUX_LEVEL2 + 7)
-#define DAVINCI_MUX_SPI		(DAVINCI_MUX_LEVEL2 + 8)
-#define DAVINCI_MUX_MSTK	(DAVINCI_MUX_LEVEL2 + 9)
-#define DAVINCI_MUX_ASP		(DAVINCI_MUX_LEVEL2 + 10)
-#define DAVINCI_MUX_CLK0	(DAVINCI_MUX_LEVEL2 + 16)
-#define DAVINCI_MUX_CLK1	(DAVINCI_MUX_LEVEL2 + 17)
-#define DAVINCI_MUX_TIMIN	(DAVINCI_MUX_LEVEL2 + 18)
-
-extern void davinci_mux_peripheral(unsigned int mux, unsigned int enable);
-
-#endif /* __ASM_ARCH_MUX_H */
+
+#ifndef __INC_MACH_MUX_H
+#define __INC_MACH_MUX_H
+
+/* System module registers */
+#define PINMUX0			0x00
+#define PINMUX1			0x04
+/* dm355 only */
+#define PINMUX2			0x08
+#define PINMUX3			0x0c
+#define PINMUX4			0x10
+#define INTMUX			0x18
+#define EVTMUX			0x1c
+
+struct mux_config {
+	const char *name;
+	const char *mux_reg_name;
+	const unsigned char mux_reg;
+	const unsigned char mask_offset;
+	const unsigned char mask;
+	const unsigned char mode;
+	bool debug;
+};
+
+enum davinci_dm644x_index {
+	/* ATA and HDDIR functions */
+	DM644X_HDIREN,
+	DM644X_ATAEN,
+	DM644X_ATAEN_DISABLE,
+
+	/* HPI functions */
+	DM644X_HPIEN_DISABLE,
+
+	/* AEAW functions */
+	DM644X_AEAW,
+
+	/* Memory Stick */
+	DM644X_MSTK,
+
+	/* I2C */
+	DM644X_I2C,
+
+	/* ASP function */
+	DM644X_MCBSP,
+
+	/* UART1 */
+	DM644X_UART1,
+
+	/* UART2 */
+	DM644X_UART2,
+
+	/* PWM0 */
+	DM644X_PWM0,
+
+	/* PWM1 */
+	DM644X_PWM1,
+
+	/* PWM2 */
+	DM644X_PWM2,
+
+	/* VLYNQ function */
+	DM644X_VLYNQEN,
+	DM644X_VLSCREN,
+	DM644X_VLYNQWD,
+
+	/* EMAC and MDIO function */
+	DM644X_EMACEN,
+
+	/* GPIO3V[0:16] pins */
+	DM644X_GPIO3V,
+
+	/* GPIO pins */
+	DM644X_GPIO0,
+	DM644X_GPIO3,
+	DM644X_GPIO43_44,
+	DM644X_GPIO46_47,
+
+	/* VPBE */
+	DM644X_RGB666,
+
+	/* LCD */
+	DM644X_LOEEN,
+	DM644X_LFLDEN,
+};
+
+enum davinci_dm646x_index {
+	/* ATA function */
+	DM646X_ATAEN,
+
+	/* AUDIO Clock */
+	DM646X_AUDCK1,
+	DM646X_AUDCK0,
+
+	/* CRGEN Control */
+	DM646X_CRGMUX,
+
+	/* VPIF Control */
+	DM646X_STSOMUX_DISABLE,
+	DM646X_STSIMUX_DISABLE,
+	DM646X_PTSOMUX_DISABLE,
+	DM646X_PTSIMUX_DISABLE,
+
+	/* TSIF Control */
+	DM646X_STSOMUX,
+	DM646X_STSIMUX,
+	DM646X_PTSOMUX_PARALLEL,
+	DM646X_PTSIMUX_PARALLEL,
+	DM646X_PTSOMUX_SERIAL,
+	DM646X_PTSIMUX_SERIAL,
+};
+
+enum davinci_dm355_index {
+	/* MMC/SD 0 */
+	DM355_MMCSD0,
+
+	/* MMC/SD 1 */
+	DM355_SD1_CLK,
+	DM355_SD1_CMD,
+	DM355_SD1_DATA3,
+	DM355_SD1_DATA2,
+	DM355_SD1_DATA1,
+	DM355_SD1_DATA0,
+
+	/* I2C */
+	DM355_I2C_SDA,
+	DM355_I2C_SCL,
+
+	/* ASP0 function */
+	DM355_MCBSP0_BDX,
+	DM355_MCBSP0_X,
+	DM355_MCBSP0_BFSX,
+	DM355_MCBSP0_BDR,
+	DM355_MCBSP0_R,
+	DM355_MCBSP0_BFSR,
+
+	/* SPI0 */
+	DM355_SPI0_SDI,
+	DM355_SPI0_SDENA0,
+	DM355_SPI0_SDENA1,
+
+	/* IRQ muxing */
+	DM355_INT_EDMA_CC,
+	DM355_INT_EDMA_TC0_ERR,
+	DM355_INT_EDMA_TC1_ERR,
+
+	/* EDMA event muxing */
+	DM355_EVT8_ASP1_TX,
+	DM355_EVT9_ASP1_RX,
+	DM355_EVT26_MMC0_RX,
+};
+
+#ifdef CONFIG_DAVINCI_MUX
+/* setup pin muxing */
+extern void davinci_mux_init(void);
+extern int davinci_mux_register(const struct mux_config *pins,
+				unsigned long size);
+extern int davinci_cfg_reg(unsigned long reg_cfg);
+#else
+/* boot loader does it all (no warnings from CONFIG_DAVINCI_MUX_WARNINGS) */
+static inline void davinci_mux_init(void) {}
+static inline int davinci_mux_register(const struct mux_config *pins,
+				       unsigned long size) { return 0; }
+static inline int davinci_cfg_reg(unsigned long reg_cfg) { return 0; }
+#endif
+
+#endif /* __INC_MACH_MUX_H */