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Diffstat (limited to 'arch/arm/include/asm/arch-tegra20/pinmux.h')
| -rw-r--r-- | arch/arm/include/asm/arch-tegra20/pinmux.h | 354 |
1 files changed, 354 insertions, 0 deletions
diff --git a/arch/arm/include/asm/arch-tegra20/pinmux.h b/arch/arm/include/asm/arch-tegra20/pinmux.h new file mode 100644 index 0000000000..03fa7ca643 --- /dev/null +++ b/arch/arm/include/asm/arch-tegra20/pinmux.h @@ -0,0 +1,354 @@ +/* + * (C) Copyright 2010,2011 + * NVIDIA Corporation <www.nvidia.com> + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#ifndef _PINMUX_H_ +#define _PINMUX_H_ + +/* + * Pin groups which we adjust. There are three basic attributes of each pin + * group which use this enum: + * + * - function + * - pullup / pulldown + * - tristate or normal + */ +enum pmux_pingrp { + /* APB_MISC_PP_TRISTATE_REG_A_0 */ + PINGRP_ATA, + PINGRP_ATB, + PINGRP_ATC, + PINGRP_ATD, + PINGRP_CDEV1, + PINGRP_CDEV2, + PINGRP_CSUS, + PINGRP_DAP1, + + PINGRP_DAP2, + PINGRP_DAP3, + PINGRP_DAP4, + PINGRP_DTA, + PINGRP_DTB, + PINGRP_DTC, + PINGRP_DTD, + PINGRP_DTE, + + PINGRP_GPU, + PINGRP_GPV, + PINGRP_I2CP, + PINGRP_IRTX, + PINGRP_IRRX, + PINGRP_KBCB, + PINGRP_KBCA, + PINGRP_PMC, + + PINGRP_PTA, + PINGRP_RM, + PINGRP_KBCE, + PINGRP_KBCF, + PINGRP_GMA, + PINGRP_GMC, + PINGRP_SDIO1, + PINGRP_OWC, + + /* 32: APB_MISC_PP_TRISTATE_REG_B_0 */ + PINGRP_GME, + PINGRP_SDC, + PINGRP_SDD, + PINGRP_RESERVED0, + PINGRP_SLXA, + PINGRP_SLXC, + PINGRP_SLXD, + PINGRP_SLXK, + + PINGRP_SPDI, + PINGRP_SPDO, + PINGRP_SPIA, + PINGRP_SPIB, + PINGRP_SPIC, + PINGRP_SPID, + PINGRP_SPIE, + PINGRP_SPIF, + + PINGRP_SPIG, + PINGRP_SPIH, + PINGRP_UAA, + PINGRP_UAB, + PINGRP_UAC, + PINGRP_UAD, + PINGRP_UCA, + PINGRP_UCB, + + PINGRP_RESERVED1, + PINGRP_ATE, + PINGRP_KBCC, + PINGRP_RESERVED2, + PINGRP_RESERVED3, + PINGRP_GMB, + PINGRP_GMD, + PINGRP_DDC, + + /* 64: APB_MISC_PP_TRISTATE_REG_C_0 */ + PINGRP_LD0, + PINGRP_LD1, + PINGRP_LD2, + PINGRP_LD3, + PINGRP_LD4, + PINGRP_LD5, + PINGRP_LD6, + PINGRP_LD7, + + PINGRP_LD8, + PINGRP_LD9, + PINGRP_LD10, + PINGRP_LD11, + PINGRP_LD12, + PINGRP_LD13, + PINGRP_LD14, + PINGRP_LD15, + + PINGRP_LD16, + PINGRP_LD17, + PINGRP_LHP0, + PINGRP_LHP1, + PINGRP_LHP2, + PINGRP_LVP0, + PINGRP_LVP1, + PINGRP_HDINT, + + PINGRP_LM0, + PINGRP_LM1, + PINGRP_LVS, + PINGRP_LSC0, + PINGRP_LSC1, + PINGRP_LSCK, + PINGRP_LDC, + PINGRP_LCSN, + + /* 96: APB_MISC_PP_TRISTATE_REG_D_0 */ + PINGRP_LSPI, + PINGRP_LSDA, + PINGRP_LSDI, + PINGRP_LPW0, + PINGRP_LPW1, + PINGRP_LPW2, + PINGRP_LDI, + PINGRP_LHS, + + PINGRP_LPP, + PINGRP_RESERVED4, + PINGRP_KBCD, + PINGRP_GPU7, + PINGRP_DTF, + PINGRP_UDA, + PINGRP_CRTP, + PINGRP_SDB, + + /* these pin groups only have pullup and pull down control */ + PINGRP_FIRST_NO_MUX, + PINGRP_CK32 = PINGRP_FIRST_NO_MUX, + PINGRP_DDRC, + PINGRP_PMCA, + PINGRP_PMCB, + PINGRP_PMCC, + PINGRP_PMCD, + PINGRP_PMCE, + PINGRP_XM2C, + PINGRP_XM2D, + + PINGRP_COUNT, +}; + +/* + * Functions which can be assigned to each of the pin groups. The values here + * bear no relation to the values programmed into pinmux registers and are + * purely a convenience. The translation is done through a table search. + */ +enum pmux_func { + PMUX_FUNC_AHB_CLK, + PMUX_FUNC_APB_CLK, + PMUX_FUNC_AUDIO_SYNC, + PMUX_FUNC_CRT, + PMUX_FUNC_DAP1, + PMUX_FUNC_DAP2, + PMUX_FUNC_DAP3, + PMUX_FUNC_DAP4, + PMUX_FUNC_DAP5, + PMUX_FUNC_DISPA, + PMUX_FUNC_DISPB, + PMUX_FUNC_EMC_TEST0_DLL, + PMUX_FUNC_EMC_TEST1_DLL, + PMUX_FUNC_GMI, + PMUX_FUNC_GMI_INT, + PMUX_FUNC_HDMI, + PMUX_FUNC_I2C, + PMUX_FUNC_I2C2, + PMUX_FUNC_I2C3, + PMUX_FUNC_IDE, + PMUX_FUNC_IRDA, + PMUX_FUNC_KBC, + PMUX_FUNC_MIO, + PMUX_FUNC_MIPI_HS, + PMUX_FUNC_NAND, + PMUX_FUNC_OSC, + PMUX_FUNC_OWR, + PMUX_FUNC_PCIE, + PMUX_FUNC_PLLA_OUT, + PMUX_FUNC_PLLC_OUT1, + PMUX_FUNC_PLLM_OUT1, + PMUX_FUNC_PLLP_OUT2, + PMUX_FUNC_PLLP_OUT3, + PMUX_FUNC_PLLP_OUT4, + PMUX_FUNC_PWM, + PMUX_FUNC_PWR_INTR, + PMUX_FUNC_PWR_ON, + PMUX_FUNC_RTCK, + PMUX_FUNC_SDIO1, + PMUX_FUNC_SDIO2, + PMUX_FUNC_SDIO3, + PMUX_FUNC_SDIO4, + PMUX_FUNC_SFLASH, + PMUX_FUNC_SPDIF, + PMUX_FUNC_SPI1, + PMUX_FUNC_SPI2, + PMUX_FUNC_SPI2_ALT, + PMUX_FUNC_SPI3, + PMUX_FUNC_SPI4, + PMUX_FUNC_TRACE, + PMUX_FUNC_TWC, + PMUX_FUNC_UARTA, + PMUX_FUNC_UARTB, + PMUX_FUNC_UARTC, + PMUX_FUNC_UARTD, + PMUX_FUNC_UARTE, + PMUX_FUNC_ULPI, + PMUX_FUNC_VI, + PMUX_FUNC_VI_SENSOR_CLK, + PMUX_FUNC_XIO, + PMUX_FUNC_SAFE, + + /* These don't have a name, but can be used in the table */ + PMUX_FUNC_RSVD1, + PMUX_FUNC_RSVD2, + PMUX_FUNC_RSVD3, + PMUX_FUNC_RSVD4, + PMUX_FUNC_RSVD, /* Not valid and should not be used */ + + PMUX_FUNC_COUNT, + + PMUX_FUNC_NONE = -1, +}; + +/* return 1 if a pmux_func is in range */ +#define pmux_func_isvalid(func) ((func) >= 0 && (func) < PMUX_FUNC_COUNT && \ + (func) != PMUX_FUNC_RSVD) + +/* The pullup/pulldown state of a pin group */ +enum pmux_pull { + PMUX_PULL_NORMAL = 0, + PMUX_PULL_DOWN, + PMUX_PULL_UP, +}; + +/* Defines whether a pin group is tristated or in normal operation */ +enum pmux_tristate { + PMUX_TRI_NORMAL = 0, + PMUX_TRI_TRISTATE = 1, +}; + +/* Available power domains used by pin groups */ +enum pmux_vddio { + PMUX_VDDIO_BB = 0, + PMUX_VDDIO_LCD, + PMUX_VDDIO_VI, + PMUX_VDDIO_UART, + PMUX_VDDIO_DDR, + PMUX_VDDIO_NAND, + PMUX_VDDIO_SYS, + PMUX_VDDIO_AUDIO, + PMUX_VDDIO_SD, + + PMUX_VDDIO_NONE +}; + +enum { + PMUX_TRISTATE_REGS = 4, + PMUX_MUX_REGS = 7, + PMUX_PULL_REGS = 5, +}; + +/* APB MISC Pin Mux and Tristate (APB_MISC_PP_) registers */ +struct pmux_tri_ctlr { + uint pmt_reserved0; /* ABP_MISC_PP_ reserved offset 00 */ + uint pmt_reserved1; /* ABP_MISC_PP_ reserved offset 04 */ + uint pmt_strap_opt_a; /* _STRAPPING_OPT_A_0, offset 08 */ + uint pmt_reserved2; /* ABP_MISC_PP_ reserved offset 0C */ + uint pmt_reserved3; /* ABP_MISC_PP_ reserved offset 10 */ + uint pmt_tri[PMUX_TRISTATE_REGS];/* _TRI_STATE_REG_A/B/C/D_0 14-20 */ + uint pmt_cfg_ctl; /* _CONFIG_CTL_0, offset 24 */ + + uint pmt_reserved[22]; /* ABP_MISC_PP_ reserved offs 28-7C */ + + uint pmt_ctl[PMUX_MUX_REGS]; /* _PIN_MUX_CTL_A-G_0, offset 80 */ + uint pmt_reserved4; /* ABP_MISC_PP_ reserved offset 9c */ + uint pmt_pull[PMUX_PULL_REGS]; /* APB_MISC_PP_PULLUPDOWN_REG_A-E */ +}; + +/* + * This defines the configuration for a pin, including the function assigned, + * pull up/down settings and tristate settings. Having set up one of these + * you can call pinmux_config_pingroup() to configure a pin in one step. Also + * available is pinmux_config_table() to configure a list of pins. + */ +struct pingroup_config { + enum pmux_pingrp pingroup; /* pin group PINGRP_... */ + enum pmux_func func; /* function to assign FUNC_... */ + enum pmux_pull pull; /* pull up/down/normal PMUX_PULL_...*/ + enum pmux_tristate tristate; /* tristate or normal PMUX_TRI_... */ +}; + +/* Set a pin group to tristate */ +void pinmux_tristate_enable(enum pmux_pingrp pin); + +/* Set a pin group to normal (non tristate) */ +void pinmux_tristate_disable(enum pmux_pingrp pin); + +/* Set the pull up/down feature for a pin group */ +void pinmux_set_pullupdown(enum pmux_pingrp pin, enum pmux_pull pupd); + +/* Set the mux function for a pin group */ +void pinmux_set_func(enum pmux_pingrp pin, enum pmux_func func); + +/* Set the complete configuration for a pin group */ +void pinmux_config_pingroup(struct pingroup_config *config); + +void pinmux_set_tristate(enum pmux_pingrp pin, int enable); + +/** + * Configuure a list of pin groups + * + * @param config List of config items + * @param len Number of config items in list + */ +void pinmux_config_table(struct pingroup_config *config, int len); + +#endif /* PINMUX_H */ |