1 files changed, 144 insertions, 0 deletions
diff --git a/arch/arm/mach-omap1/mux.h b/arch/arm/mach-omap1/mux.h
new file mode 100644
index 000000000000..3e7ed3348a55
--- /dev/null
+++ b/arch/arm/mach-omap1/mux.h
@@ -0,0 +1,144 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * Table of the Omap register configurations for the FUNC_MUX and
+ * PULL_DWN combinations.
+ *
+ * Copyright (C) 2004 - 2008 Texas Instruments Inc.
+ * Copyright (C) 2003 - 2008 Nokia Corporation
+ *
+ * Written by Tony Lindgren
+ *
+ * NOTE: Please use the following naming style for new pin entries.
+ *	 For example, W8_1610_MMC2_DAT0, where:
+ *	 - W8	     = ball
+ *	 - 1610	     = 1510 or 1610, none if common for both 1510 and 1610
+ *	 - MMC2_DAT0 = function
+ */
+
+#ifndef __ASM_ARCH_MUX_H
+#define __ASM_ARCH_MUX_H
+
+#include <linux/soc/ti/omap1-mux.h>
+
+#define PU_PD_SEL_NA		0	/* No pu_pd reg available */
+#define PULL_DWN_CTRL_NA	0	/* No pull-down control needed */
+
+#ifdef	CONFIG_OMAP_MUX_DEBUG
+#define MUX_REG(reg, mode_offset, mode) .mux_reg_name = "FUNC_MUX_CTRL_"#reg, \
+					.mux_reg = FUNC_MUX_CTRL_##reg, \
+					.mask_offset = mode_offset, \
+					.mask = mode,
+
+#define PULL_REG(reg, bit, status)	.pull_name = "PULL_DWN_CTRL_"#reg, \
+					.pull_reg = PULL_DWN_CTRL_##reg, \
+					.pull_bit = bit, \
+					.pull_val = status,
+
+#define PU_PD_REG(reg, status)		.pu_pd_name = "PU_PD_SEL_"#reg, \
+					.pu_pd_reg = PU_PD_SEL_##reg, \
+					.pu_pd_val = status,
+
+#define MUX_REG_7XX(reg, mode_offset, mode) .mux_reg_name = "OMAP7XX_IO_CONF_"#reg, \
+					.mux_reg = OMAP7XX_IO_CONF_##reg, \
+					.mask_offset = mode_offset, \
+					.mask = mode,
+
+#define PULL_REG_7XX(reg, bit, status)	.pull_name = "OMAP7XX_IO_CONF_"#reg, \
+					.pull_reg = OMAP7XX_IO_CONF_##reg, \
+					.pull_bit = bit, \
+					.pull_val = status,
+
+#else
+
+#define MUX_REG(reg, mode_offset, mode) .mux_reg = FUNC_MUX_CTRL_##reg, \
+					.mask_offset = mode_offset, \
+					.mask = mode,
+
+#define PULL_REG(reg, bit, status)	.pull_reg = PULL_DWN_CTRL_##reg, \
+					.pull_bit = bit, \
+					.pull_val = status,
+
+#define PU_PD_REG(reg, status)		.pu_pd_reg = PU_PD_SEL_##reg, \
+					.pu_pd_val = status,
+
+#define MUX_REG_7XX(reg, mode_offset, mode) \
+					.mux_reg = OMAP7XX_IO_CONF_##reg, \
+					.mask_offset = mode_offset, \
+					.mask = mode,
+
+#define PULL_REG_7XX(reg, bit, status)	.pull_reg = OMAP7XX_IO_CONF_##reg, \
+					.pull_bit = bit, \
+					.pull_val = status,
+
+#endif /* CONFIG_OMAP_MUX_DEBUG */
+
+#define MUX_CFG(desc, mux_reg, mode_offset, mode,	\
+		pull_reg, pull_bit, pull_status,	\
+		pu_pd_reg, pu_pd_status, debug_status)	\
+{							\
+	.name =	 desc,					\
+	.debug = debug_status,				\
+	MUX_REG(mux_reg, mode_offset, mode)		\
+	PULL_REG(pull_reg, pull_bit, pull_status)	\
+	PU_PD_REG(pu_pd_reg, pu_pd_status)		\
+},
+
+
+/*
+ * OMAP730/850 has a slightly different config for the pin mux.
+ * - config regs are the OMAP7XX_IO_CONF_x regs (see omap7xx.h) regs and
+ *   not the FUNC_MUX_CTRL_x regs from hardware.h
+ * - for pull-up/down, only has one enable bit which is in the same register
+ *   as mux config
+ */
+#define MUX_CFG_7XX(desc, mux_reg, mode_offset, mode,	\
+		   pull_bit, pull_status, debug_status)\
+{							\
+	.name =	 desc,					\
+	.debug = debug_status,				\
+	MUX_REG_7XX(mux_reg, mode_offset, mode)		\
+	PULL_REG_7XX(mux_reg, pull_bit, pull_status)	\
+	PU_PD_REG(NA, 0)		\
+},
+
+struct pin_config {
+	char 			*name;
+	const unsigned int 	mux_reg;
+	unsigned char		debug;
+
+	const unsigned char mask_offset;
+	const unsigned char mask;
+
+	const char *pull_name;
+	const unsigned int pull_reg;
+	const unsigned char pull_val;
+	const unsigned char pull_bit;
+
+	const char *pu_pd_name;
+	const unsigned int pu_pd_reg;
+	const unsigned char pu_pd_val;
+
+#if	defined(CONFIG_OMAP_MUX_DEBUG) || defined(CONFIG_OMAP_MUX_WARNINGS)
+	const char *mux_reg_name;
+#endif
+
+};
+
+struct omap_mux_cfg {
+	struct pin_config	*pins;
+	unsigned long		size;
+	int			(*cfg_reg)(const struct pin_config *cfg);
+};
+
+#ifdef	CONFIG_OMAP_MUX
+/* setup pin muxing in Linux */
+extern int omap1_mux_init(void);
+extern int omap_mux_register(struct omap_mux_cfg *);
+#else
+/* boot loader does it all (no warnings from CONFIG_OMAP_MUX_WARNINGS) */
+static inline int omap1_mux_init(void) { return 0; }
+#endif
+
+extern int omap2_mux_init(void);
+
+#endif