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Diffstat (limited to 'arch/arm/mach-omap1/mux.h')
| -rw-r--r-- | arch/arm/mach-omap1/mux.h | 144 |
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 |