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- /* 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
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