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