c5f04b8d10
- the reset values for some pin groups in the tegra pin mux can result in functional errors due to conflicting with actively-configured pin groups muxing from the same controller. this change adds a known safe, non- conflicting mux for every pin group, which can be used on platforms where the pin group is not routed to any peripheral - also add each pin group's I/O voltage rail, to enable platform code to map from the pin groups used by each interface to the regulators used for dynamic voltage control - add routines to individually configure the tristate, pin mux and pull- ups for a pingroup_config array, so that it is possible to program individual values at run-time without modifying other values. this allows driver power-management code to reprogram individual interfaces into lower power states during idle / suspend, or to reprogram the pin mux to support multiple physical busses per internal controller (e.g., sharing a single I2C or SPI controller across multiple pin groups) - move chip-specific data like pingroups and drive-pingroups out of the common code and into chip-specific code - fix debug output for group with no pullups - add a TEGRA_MUX_SAFE function. Setting a pingroup to TEGRA_MUX_SAFE will automatically select a mux setting that is guaranteed not to conflict with any of the hardware blocks. Signed-off-by: Gary King <gking@nvidia.com>
260 lines
17 KiB
C
260 lines
17 KiB
C
/*
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* linux/arch/arm/mach-tegra/pinmux-t2-tables.c
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*
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* Common pinmux configurations for Tegra 2 SoCs
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*
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* Copyright (C) 2010 NVIDIA Corporation
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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#include <linux/kernel.h>
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#include <linux/errno.h>
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#include <linux/spinlock.h>
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#include <linux/io.h>
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#include <linux/init.h>
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#include <linux/string.h>
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#include <mach/iomap.h>
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#include <mach/pinmux.h>
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#define DRIVE_PINGROUP(pg_name, r) \
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[TEGRA_DRIVE_PINGROUP_ ## pg_name] = { \
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.name = #pg_name, \
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.reg = r \
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}
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const struct tegra_drive_pingroup_desc tegra_soc_drive_pingroups[TEGRA_MAX_DRIVE_PINGROUP] = {
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DRIVE_PINGROUP(AO1, 0x868),
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DRIVE_PINGROUP(AO2, 0x86c),
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DRIVE_PINGROUP(AT1, 0x870),
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DRIVE_PINGROUP(AT2, 0x874),
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DRIVE_PINGROUP(CDEV1, 0x878),
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DRIVE_PINGROUP(CDEV2, 0x87c),
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DRIVE_PINGROUP(CSUS, 0x880),
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DRIVE_PINGROUP(DAP1, 0x884),
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DRIVE_PINGROUP(DAP2, 0x888),
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DRIVE_PINGROUP(DAP3, 0x88c),
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DRIVE_PINGROUP(DAP4, 0x890),
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DRIVE_PINGROUP(DBG, 0x894),
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DRIVE_PINGROUP(LCD1, 0x898),
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DRIVE_PINGROUP(LCD2, 0x89c),
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DRIVE_PINGROUP(SDMMC2, 0x8a0),
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DRIVE_PINGROUP(SDMMC3, 0x8a4),
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DRIVE_PINGROUP(SPI, 0x8a8),
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DRIVE_PINGROUP(UAA, 0x8ac),
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DRIVE_PINGROUP(UAB, 0x8b0),
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DRIVE_PINGROUP(UART2, 0x8b4),
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DRIVE_PINGROUP(UART3, 0x8b8),
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DRIVE_PINGROUP(VI1, 0x8bc),
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DRIVE_PINGROUP(VI2, 0x8c0),
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DRIVE_PINGROUP(XM2A, 0x8c4),
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DRIVE_PINGROUP(XM2C, 0x8c8),
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DRIVE_PINGROUP(XM2D, 0x8cc),
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DRIVE_PINGROUP(XM2CLK, 0x8d0),
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DRIVE_PINGROUP(MEMCOMP, 0x8d4),
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};
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#define PINGROUP(pg_name, vdd, f0, f1, f2, f3, f_safe, \
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tri_r, tri_b, mux_r, mux_b, pupd_r, pupd_b) \
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[TEGRA_PINGROUP_ ## pg_name] = { \
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.name = #pg_name, \
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.vddio = TEGRA_VDDIO_ ## vdd, \
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.funcs = { \
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TEGRA_MUX_ ## f0, \
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TEGRA_MUX_ ## f1, \
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TEGRA_MUX_ ## f2, \
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TEGRA_MUX_ ## f3, \
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}, \
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.func_safe = TEGRA_MUX_ ## f_safe, \
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.tri_reg = tri_r, \
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.tri_bit = tri_b, \
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.mux_reg = mux_r, \
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.mux_bit = mux_b, \
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.pupd_reg = pupd_r, \
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.pupd_bit = pupd_b, \
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}
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const struct tegra_pingroup_desc tegra_soc_pingroups[TEGRA_MAX_PINGROUP] = {
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PINGROUP(ATA, NAND, IDE, NAND, GMI, RSVD, IDE, 0x14, 0, 0x80, 24, 0xA0, 0),
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PINGROUP(ATB, NAND, IDE, NAND, GMI, SDIO4, IDE, 0x14, 1, 0x80, 16, 0xA0, 2),
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PINGROUP(ATC, NAND, IDE, NAND, GMI, SDIO4, IDE, 0x14, 2, 0x80, 22, 0xA0, 4),
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PINGROUP(ATD, NAND, IDE, NAND, GMI, SDIO4, IDE, 0x14, 3, 0x80, 20, 0xA0, 6),
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PINGROUP(ATE, NAND, IDE, NAND, GMI, RSVD, IDE, 0x18, 25, 0x80, 12, 0xA0, 8),
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PINGROUP(CDEV1, AUDIO, OSC, PLLA_OUT, PLLM_OUT1, AUDIO_SYNC, OSC, 0x14, 4, 0x88, 2, 0xA8, 0),
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PINGROUP(CDEV2, AUDIO, OSC, AHB_CLK, APB_CLK, PLLP_OUT4, OSC, 0x14, 5, 0x88, 4, 0xA8, 2),
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PINGROUP(CRTP, LCD, CRT, RSVD, RSVD, RSVD, RSVD, 0x20, 14, 0x98, 20, 0xA4, 24),
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PINGROUP(CSUS, VI, PLLC_OUT1, PLLP_OUT2, PLLP_OUT3, VI_SENSOR_CLK, PLLC_OUT1, 0x14, 6, 0x88, 6, 0xAC, 24),
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PINGROUP(DAP1, AUDIO, DAP1, RSVD, GMI, SDIO2, DAP1, 0x14, 7, 0x88, 20, 0xA0, 10),
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PINGROUP(DAP2, AUDIO, DAP2, TWC, RSVD, GMI, DAP2, 0x14, 8, 0x88, 22, 0xA0, 12),
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PINGROUP(DAP3, BB, DAP3, RSVD, RSVD, RSVD, DAP3, 0x14, 9, 0x88, 24, 0xA0, 14),
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PINGROUP(DAP4, UART, DAP4, RSVD, GMI, RSVD, DAP4, 0x14, 10, 0x88, 26, 0xA0, 16),
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PINGROUP(DDC, LCD, I2C2, RSVD, RSVD, RSVD, RSVD4, 0x18, 31, 0x88, 0, 0xB0, 28),
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PINGROUP(DTA, VI, RSVD, SDIO2, VI, RSVD, RSVD4, 0x14, 11, 0x84, 20, 0xA0, 18),
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PINGROUP(DTB, VI, RSVD, RSVD, VI, SPI1, RSVD1, 0x14, 12, 0x84, 22, 0xA0, 20),
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PINGROUP(DTC, VI, RSVD, RSVD, VI, RSVD, RSVD1, 0x14, 13, 0x84, 26, 0xA0, 22),
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PINGROUP(DTD, VI, RSVD, SDIO2, VI, RSVD, RSVD1, 0x14, 14, 0x84, 28, 0xA0, 24),
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PINGROUP(DTE, VI, RSVD, RSVD, VI, SPI1, RSVD1, 0x14, 15, 0x84, 30, 0xA0, 26),
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PINGROUP(DTF, VI, I2C3, RSVD, VI, RSVD, RSVD4, 0x20, 12, 0x98, 30, 0xA0, 28),
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PINGROUP(GMA, NAND, UARTE, SPI3, GMI, SDIO4, SPI3, 0x14, 28, 0x84, 0, 0xB0, 20),
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PINGROUP(GMB, NAND, IDE, NAND, GMI, GMI_INT, GMI, 0x18, 29, 0x88, 28, 0xB0, 22),
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PINGROUP(GMC, NAND, UARTD, SPI4, GMI, SFLASH, SPI4, 0x14, 29, 0x84, 2, 0xB0, 24),
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PINGROUP(GMD, NAND, RSVD, NAND, GMI, SFLASH, GMI, 0x18, 30, 0x88, 30, 0xB0, 26),
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PINGROUP(GME, NAND, RSVD, DAP5, GMI, SDIO4, GMI, 0x18, 0, 0x8C, 0, 0xA8, 24),
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PINGROUP(GPU, UART, PWM, UARTA, GMI, RSVD, RSVD4, 0x14, 16, 0x8C, 4, 0xA4, 20),
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PINGROUP(GPU7, SYS, RTCK, RSVD, RSVD, RSVD, RTCK, 0x20, 11, 0x98, 28, 0xA4, 6),
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PINGROUP(GPV, SD, PCIE, RSVD, RSVD, RSVD, PCIE, 0x14, 17, 0x8C, 2, 0xA0, 30),
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PINGROUP(HDINT, LCD, HDMI, RSVD, RSVD, RSVD, HDMI, 0x1C, 23, 0x84, 4, 0xAC, 22),
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PINGROUP(I2CP, SYS, I2C, RSVD, RSVD, RSVD, RSVD4, 0x14, 18, 0x88, 8, 0xA4, 2),
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PINGROUP(IRRX, UART, UARTA, UARTB, GMI, SPI4, UARTB, 0x14, 20, 0x88, 18, 0xA8, 22),
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PINGROUP(IRTX, UART, UARTA, UARTB, GMI, SPI4, UARTB, 0x14, 19, 0x88, 16, 0xA8, 20),
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PINGROUP(KBCA, SYS, KBC, NAND, SDIO2, EMC_TEST0_DLL, KBC, 0x14, 22, 0x88, 10, 0xA4, 8),
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PINGROUP(KBCB, SYS, KBC, NAND, SDIO2, MIO, KBC, 0x14, 21, 0x88, 12, 0xA4, 10),
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PINGROUP(KBCC, SYS, KBC, NAND, TRACE, EMC_TEST1_DLL, KBC, 0x18, 26, 0x88, 14, 0xA4, 12),
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PINGROUP(KBCD, SYS, KBC, NAND, SDIO2, MIO, KBC, 0x20, 10, 0x98, 26, 0xA4, 14),
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PINGROUP(KBCE, SYS, KBC, NAND, OWR, RSVD, KBC, 0x14, 26, 0x80, 28, 0xB0, 2),
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PINGROUP(KBCF, SYS, KBC, NAND, TRACE, MIO, KBC, 0x14, 27, 0x80, 26, 0xB0, 0),
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PINGROUP(LCSN, LCD, DISPLAYA, DISPLAYB, SPI3, RSVD, RSVD4, 0x1C, 31, 0x90, 12, 0xAC, 20),
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PINGROUP(LD0, LCD, DISPLAYA, DISPLAYB, XIO, RSVD, RSVD4, 0x1C, 0, 0x94, 0, 0xAC, 12),
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PINGROUP(LD1, LCD, DISPLAYA, DISPLAYB, XIO, RSVD, RSVD4, 0x1C, 1, 0x94, 2, 0xAC, 12),
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PINGROUP(LD10, LCD, DISPLAYA, DISPLAYB, XIO, RSVD, RSVD4, 0x1C, 10, 0x94, 20, 0xAC, 12),
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PINGROUP(LD11, LCD, DISPLAYA, DISPLAYB, XIO, RSVD, RSVD4, 0x1C, 11, 0x94, 22, 0xAC, 12),
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PINGROUP(LD12, LCD, DISPLAYA, DISPLAYB, XIO, RSVD, RSVD4, 0x1C, 12, 0x94, 24, 0xAC, 12),
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PINGROUP(LD13, LCD, DISPLAYA, DISPLAYB, XIO, RSVD, RSVD4, 0x1C, 13, 0x94, 26, 0xAC, 12),
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PINGROUP(LD14, LCD, DISPLAYA, DISPLAYB, XIO, RSVD, RSVD4, 0x1C, 14, 0x94, 28, 0xAC, 12),
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PINGROUP(LD15, LCD, DISPLAYA, DISPLAYB, XIO, RSVD, RSVD4, 0x1C, 15, 0x94, 30, 0xAC, 12),
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PINGROUP(LD16, LCD, DISPLAYA, DISPLAYB, XIO, RSVD, RSVD4, 0x1C, 16, 0x98, 0, 0xAC, 12),
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PINGROUP(LD17, LCD, DISPLAYA, DISPLAYB, RSVD, RSVD, RSVD4, 0x1C, 17, 0x98, 2, 0xAC, 12),
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PINGROUP(LD2, LCD, DISPLAYA, DISPLAYB, XIO, RSVD, RSVD4, 0x1C, 2, 0x94, 4, 0xAC, 12),
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PINGROUP(LD3, LCD, DISPLAYA, DISPLAYB, XIO, RSVD, RSVD4, 0x1C, 3, 0x94, 6, 0xAC, 12),
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PINGROUP(LD4, LCD, DISPLAYA, DISPLAYB, XIO, RSVD, RSVD4, 0x1C, 4, 0x94, 8, 0xAC, 12),
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PINGROUP(LD5, LCD, DISPLAYA, DISPLAYB, XIO, RSVD, RSVD4, 0x1C, 5, 0x94, 10, 0xAC, 12),
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PINGROUP(LD6, LCD, DISPLAYA, DISPLAYB, XIO, RSVD, RSVD4, 0x1C, 6, 0x94, 12, 0xAC, 12),
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PINGROUP(LD7, LCD, DISPLAYA, DISPLAYB, XIO, RSVD, RSVD4, 0x1C, 7, 0x94, 14, 0xAC, 12),
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PINGROUP(LD8, LCD, DISPLAYA, DISPLAYB, XIO, RSVD, RSVD4, 0x1C, 8, 0x94, 16, 0xAC, 12),
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PINGROUP(LD9, LCD, DISPLAYA, DISPLAYB, XIO, RSVD, RSVD4, 0x1C, 9, 0x94, 18, 0xAC, 12),
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PINGROUP(LDC, LCD, DISPLAYA, DISPLAYB, RSVD, RSVD, RSVD4, 0x1C, 30, 0x90, 14, 0xAC, 20),
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PINGROUP(LDI, LCD, DISPLAYA, DISPLAYB, RSVD, RSVD, RSVD4, 0x20, 6, 0x98, 16, 0xAC, 18),
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PINGROUP(LHP0, LCD, DISPLAYA, DISPLAYB, RSVD, RSVD, RSVD4, 0x1C, 18, 0x98, 10, 0xAC, 16),
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PINGROUP(LHP1, LCD, DISPLAYA, DISPLAYB, RSVD, RSVD, RSVD4, 0x1C, 19, 0x98, 4, 0xAC, 14),
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PINGROUP(LHP2, LCD, DISPLAYA, DISPLAYB, RSVD, RSVD, RSVD4, 0x1C, 20, 0x98, 6, 0xAC, 14),
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PINGROUP(LHS, LCD, DISPLAYA, DISPLAYB, XIO, RSVD, RSVD4, 0x20, 7, 0x90, 22, 0xAC, 22),
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PINGROUP(LM0, LCD, DISPLAYA, DISPLAYB, SPI3, RSVD, RSVD4, 0x1C, 24, 0x90, 26, 0xAC, 22),
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PINGROUP(LM1, LCD, DISPLAYA, DISPLAYB, RSVD, CRT, RSVD3, 0x1C, 25, 0x90, 28, 0xAC, 22),
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PINGROUP(LPP, LCD, DISPLAYA, DISPLAYB, RSVD, RSVD, RSVD4, 0x20, 8, 0x98, 14, 0xAC, 18),
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PINGROUP(LPW0, LCD, DISPLAYA, DISPLAYB, SPI3, HDMI, DISPLAYA, 0x20, 3, 0x90, 0, 0xAC, 20),
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PINGROUP(LPW1, LCD, DISPLAYA, DISPLAYB, RSVD, RSVD, RSVD4, 0x20, 4, 0x90, 2, 0xAC, 20),
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PINGROUP(LPW2, LCD, DISPLAYA, DISPLAYB, SPI3, HDMI, DISPLAYA, 0x20, 5, 0x90, 4, 0xAC, 20),
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PINGROUP(LSC0, LCD, DISPLAYA, DISPLAYB, XIO, RSVD, RSVD4, 0x1C, 27, 0x90, 18, 0xAC, 22),
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PINGROUP(LSC1, LCD, DISPLAYA, DISPLAYB, SPI3, HDMI, DISPLAYA, 0x1C, 28, 0x90, 20, 0xAC, 20),
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PINGROUP(LSCK, LCD, DISPLAYA, DISPLAYB, SPI3, HDMI, DISPLAYA, 0x1C, 29, 0x90, 16, 0xAC, 20),
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PINGROUP(LSDA, LCD, DISPLAYA, DISPLAYB, SPI3, HDMI, DISPLAYA, 0x20, 1, 0x90, 8, 0xAC, 20),
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PINGROUP(LSDI, LCD, DISPLAYA, DISPLAYB, SPI3, RSVD, DISPLAYA, 0x20, 2, 0x90, 6, 0xAC, 20),
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PINGROUP(LSPI, LCD, DISPLAYA, DISPLAYB, XIO, HDMI, DISPLAYA, 0x20, 0, 0x90, 10, 0xAC, 22),
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PINGROUP(LVP0, LCD, DISPLAYA, DISPLAYB, RSVD, RSVD, RSVD4, 0x1C, 21, 0x90, 30, 0xAC, 22),
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PINGROUP(LVP1, LCD, DISPLAYA, DISPLAYB, RSVD, RSVD, RSVD4, 0x1C, 22, 0x98, 8, 0xAC, 16),
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PINGROUP(LVS, LCD, DISPLAYA, DISPLAYB, XIO, RSVD, RSVD4, 0x1C, 26, 0x90, 24, 0xAC, 22),
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PINGROUP(OWC, SYS, OWR, RSVD, RSVD, RSVD, OWR, 0x14, 31, 0x84, 8, 0xB0, 30),
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PINGROUP(PMC, SYS, PWR_ON, PWR_INTR, RSVD, RSVD, PWR_ON, 0x14, 23, 0x98, 18, -1, -1),
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PINGROUP(PTA, NAND, I2C2, HDMI, GMI, RSVD, RSVD4, 0x14, 24, 0x98, 22, 0xA4, 4),
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PINGROUP(RM, UART, I2C, RSVD, RSVD, RSVD, RSVD4, 0x14, 25, 0x80, 14, 0xA4, 0),
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PINGROUP(SDB, SD, UARTA, PWM, SDIO3, SPI2, PWM, 0x20, 15, 0x8C, 10, -1, -1),
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PINGROUP(SDC, SD, PWM, TWC, SDIO3, SPI3, TWC, 0x18, 1, 0x8C, 12, 0xAC, 28),
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PINGROUP(SDD, SD, UARTA, PWM, SDIO3, SPI3, PWM, 0x18, 2, 0x8C, 14, 0xAC, 30),
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PINGROUP(SDIO1, BB, SDIO1, RSVD, UARTE, UARTA, RSVD2, 0x14, 30, 0x80, 30, 0xB0, 18),
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PINGROUP(SLXA, SD, PCIE, SPI4, SDIO3, SPI2, PCIE, 0x18, 3, 0x84, 6, 0xA4, 22),
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PINGROUP(SLXC, SD, SPDIF, SPI4, SDIO3, SPI2, SPI4, 0x18, 5, 0x84, 10, 0xA4, 26),
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PINGROUP(SLXD, SD, SPDIF, SPI4, SDIO3, SPI2, SPI4, 0x18, 6, 0x84, 12, 0xA4, 28),
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PINGROUP(SLXK, SD, PCIE, SPI4, SDIO3, SPI2, PCIE, 0x18, 7, 0x84, 14, 0xA4, 30),
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PINGROUP(SPDI, AUDIO, SPDIF, RSVD, I2C, SDIO2, RSVD2, 0x18, 8, 0x8C, 8, 0xA4, 16),
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PINGROUP(SPDO, AUDIO, SPDIF, RSVD, I2C, SDIO2, RSVD2, 0x18, 9, 0x8C, 6, 0xA4, 18),
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PINGROUP(SPIA, AUDIO, SPI1, SPI2, SPI3, GMI, GMI, 0x18, 10, 0x8C, 30, 0xA8, 4),
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PINGROUP(SPIB, AUDIO, SPI1, SPI2, SPI3, GMI, GMI, 0x18, 11, 0x8C, 28, 0xA8, 6),
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PINGROUP(SPIC, AUDIO, SPI1, SPI2, SPI3, GMI, GMI, 0x18, 12, 0x8C, 26, 0xA8, 8),
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PINGROUP(SPID, AUDIO, SPI2, SPI1, SPI2_ALT, GMI, GMI, 0x18, 13, 0x8C, 24, 0xA8, 10),
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PINGROUP(SPIE, AUDIO, SPI2, SPI1, SPI2_ALT, GMI, GMI, 0x18, 14, 0x8C, 22, 0xA8, 12),
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PINGROUP(SPIF, AUDIO, SPI3, SPI1, SPI2, RSVD, RSVD4, 0x18, 15, 0x8C, 20, 0xA8, 14),
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PINGROUP(SPIG, AUDIO, SPI3, SPI2, SPI2_ALT, I2C, SPI2_ALT, 0x18, 16, 0x8C, 18, 0xA8, 16),
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PINGROUP(SPIH, AUDIO, SPI3, SPI2, SPI2_ALT, I2C, SPI2_ALT, 0x18, 17, 0x8C, 16, 0xA8, 18),
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PINGROUP(UAA, BB, SPI3, MIPI_HS, UARTA, ULPI, MIPI_HS, 0x18, 18, 0x80, 0, 0xAC, 0),
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PINGROUP(UAB, BB, SPI2, MIPI_HS, UARTA, ULPI, MIPI_HS, 0x18, 19, 0x80, 2, 0xAC, 2),
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PINGROUP(UAC, BB, OWR, RSVD, RSVD, RSVD, RSVD4, 0x18, 20, 0x80, 4, 0xAC, 4),
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PINGROUP(UAD, UART, IRDA, SPDIF, UARTA, SPI4, SPDIF, 0x18, 21, 0x80, 6, 0xAC, 6),
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PINGROUP(UCA, UART, UARTC, RSVD, GMI, RSVD, RSVD4, 0x18, 22, 0x84, 16, 0xAC, 8),
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PINGROUP(UCB, UART, UARTC, PWM, GMI, RSVD, RSVD4, 0x18, 23, 0x84, 18, 0xAC, 10),
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PINGROUP(UDA, BB, SPI1, RSVD, UARTD, ULPI, RSVD2, 0x20, 13, 0x80, 8, 0xB0, 16),
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/* these pin groups only have pullup and pull down control */
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PINGROUP(CK32, SYS, RSVD, RSVD, RSVD, RSVD, RSVD, -1, -1, -1, -1, 0xB0, 14),
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PINGROUP(DDRC, DDR, RSVD, RSVD, RSVD, RSVD, RSVD, -1, -1, -1, -1, 0xAC, 26),
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PINGROUP(PMCA, SYS, RSVD, RSVD, RSVD, RSVD, RSVD, -1, -1, -1, -1, 0xB0, 4),
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PINGROUP(PMCB, SYS, RSVD, RSVD, RSVD, RSVD, RSVD, -1, -1, -1, -1, 0xB0, 6),
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PINGROUP(PMCC, SYS, RSVD, RSVD, RSVD, RSVD, RSVD, -1, -1, -1, -1, 0xB0, 8),
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PINGROUP(PMCD, SYS, RSVD, RSVD, RSVD, RSVD, RSVD, -1, -1, -1, -1, 0xB0, 10),
|
|
PINGROUP(PMCE, SYS, RSVD, RSVD, RSVD, RSVD, RSVD, -1, -1, -1, -1, 0xB0, 12),
|
|
PINGROUP(XM2C, DDR, RSVD, RSVD, RSVD, RSVD, RSVD, -1, -1, -1, -1, 0xA8, 30),
|
|
PINGROUP(XM2D, DDR, RSVD, RSVD, RSVD, RSVD, RSVD, -1, -1, -1, -1, 0xA8, 28),
|
|
};
|
|
|
|
#ifdef CONFIG_PM
|
|
#define TRISTATE_REG_A 0x14
|
|
#define TRISTATE_REG_NUM 4
|
|
#define PIN_MUX_CTL_REG_A 0x80
|
|
#define PIN_MUX_CTL_REG_NUM 8
|
|
#define PULLUPDOWN_REG_A 0xa0
|
|
#define PULLUPDOWN_REG_NUM 5
|
|
|
|
static u32 pinmux_reg[TRISTATE_REG_NUM + PIN_MUX_CTL_REG_NUM +
|
|
PULLUPDOWN_REG_NUM];
|
|
|
|
static inline unsigned long pg_readl(unsigned long offset)
|
|
{
|
|
return readl(IO_TO_VIRT(TEGRA_APB_MISC_BASE + offset));
|
|
}
|
|
|
|
static inline void pg_writel(unsigned long value, unsigned long offset)
|
|
{
|
|
writel(value, IO_TO_VIRT(TEGRA_APB_MISC_BASE + offset));
|
|
}
|
|
|
|
void tegra_pinmux_suspend(void)
|
|
{
|
|
unsigned int i;
|
|
u32 *ctx = pinmux_reg;
|
|
|
|
for (i = 0; i < TRISTATE_REG_NUM; i++)
|
|
*ctx++ = pg_readl(TRISTATE_REG_A + i*4);
|
|
|
|
for (i = 0; i < PIN_MUX_CTL_REG_NUM; i++)
|
|
*ctx++ = pg_readl(PIN_MUX_CTL_REG_A + i*4);
|
|
|
|
for (i = 0; i < PULLUPDOWN_REG_NUM; i++)
|
|
*ctx++ = pg_readl(PULLUPDOWN_REG_A + i*4);
|
|
}
|
|
|
|
void tegra_pinmux_resume(void)
|
|
{
|
|
unsigned int i;
|
|
u32 *ctx = pinmux_reg;
|
|
|
|
for (i = 0; i < PIN_MUX_CTL_REG_NUM; i++)
|
|
pg_writel(*ctx++, PIN_MUX_CTL_REG_A + i*4);
|
|
|
|
for (i = 0; i < PULLUPDOWN_REG_NUM; i++)
|
|
pg_writel(*ctx++, PULLUPDOWN_REG_A + i*4);
|
|
|
|
for (i = 0; i < TRISTATE_REG_NUM; i++)
|
|
pg_writel(*ctx++, TRISTATE_REG_A + i*4);
|
|
}
|
|
#endif
|