NetBSD/sys/arch/arm/nvidia/tegra_mpio.c
2015-12-13 17:39:19 +00:00

630 lines
26 KiB
C

/* $NetBSD: tegra_mpio.c,v 1.3 2015/12/13 17:39:19 jmcneill Exp $ */
/*-
* Copyright (c) 2015 Jared D. McNeill <jmcneill@invisible.ca>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include "locators.h"
#include "opt_ddb.h"
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: tegra_mpio.c,v 1.3 2015/12/13 17:39:19 jmcneill Exp $");
#include <sys/param.h>
#include <sys/types.h>
#include <sys/bus.h>
#include <sys/device.h>
#include <sys/intr.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/kmem.h>
#include <sys/gpio.h>
#include <arm/nvidia/tegra_reg.h>
#include <arm/nvidia/tegra_mpioreg.h>
#include <arm/nvidia/tegra_var.h>
#include <dev/fdt/fdtvar.h>
static int tegra_mpio_match(device_t, cfdata_t, void *);
static void tegra_mpio_attach(device_t, device_t, void *);
struct tegra_mpio_padgrp {
u_int pg_reg;
uint32_t pg_preemp;
uint32_t pg_hsm;
uint32_t pg_schmt;
uint32_t pg_drv_type;
uint32_t pg_drvdn;
uint32_t pg_drvup;
uint32_t pg_slwr;
uint32_t pg_slwf;
};
#define PADGRP(_n, _p, _dt, _dd, _du, _slwf) \
{ \
.pg_reg = PADGRP_ ## _n ## _REG,\
.pg_preemp = (_p), \
.pg_hsm = __BIT(2), \
.pg_schmt = __BIT(3), \
.pg_drv_type = (_dt), \
.pg_drvdn = (_dd), \
.pg_drvup = (_du), \
.pg_slwr = __BITS(29,28), \
.pg_slwf = (_slwf) \
}
static const struct tegra_mpio_padgrp tegra_mpio_padgrp[] = {
PADGRP(GMACFG, __BIT(0), __BITS(7,6), __BITS(18,14), __BITS(24,20), __BITS(31,30)),
PADGRP(SDIO1CFG, 0, 0, __BITS(18,12), __BITS(26,20), __BITS(31,30)),
PADGRP(SDIO3CFG, 0, 0, __BITS(18,12), __BITS(26,20), __BITS(31,30)),
PADGRP(SDIO4CFG, 0, 0, __BITS(16,12), __BITS(24,20), __BITS(31,30)),
PADGRP(AOCFG0, 0, 0, __BITS(16,12), __BITS(24,20), __BITS(31,30)),
PADGRP(AOCFG1, 0, 0, __BITS(16,12), __BITS(24,20), __BITS(31,30)),
PADGRP(AOCFG2, 0, 0, __BITS(16,12), __BITS(24,20), __BITS(31,30)),
PADGRP(AOCFG3, 0, 0, __BITS(16,12), 0, 0),
PADGRP(AOCFG4, 0, __BITS(7,6), __BITS(18,12), __BITS(26,20), __BITS(31,30)),
PADGRP(CDEV1CFG, 0, 0, __BITS(16,12), __BITS(24,20), __BITS(31,30)),
PADGRP(CDEV2CFG, 0, 0, __BITS(16,12), __BITS(24,20), __BITS(31,30)),
PADGRP(CECCFG, 0, 0, __BITS(16,12), __BITS(24,20), __BITS(31,30)),
PADGRP(DAP1CFG, 0, 0, __BITS(16,12), __BITS(24,20), __BITS(31,30)),
PADGRP(DAP2CFG, 0, 0, __BITS(16,12), __BITS(24,20), __BITS(31,30)),
PADGRP(DAP3CFG, 0, 0, __BITS(16,12), __BITS(24,20), __BITS(31,30)),
PADGRP(DAP4CFG, 0, 0, __BITS(16,12), __BITS(24,20), __BITS(31,30)),
PADGRP(DAP5CFG, 0, 0, __BITS(16,12), __BITS(24,20), __BITS(31,30)),
PADGRP(DBGCFG, 0, 0, __BITS(16,12), __BITS(24,20), __BITS(31,30)),
PADGRP(DDCCFG, 0, 0, __BITS(16,12), __BITS(24,20), __BITS(31,30)),
PADGRP(DEV3CFG, 0, 0, __BITS(16,12), __BITS(24,20), __BITS(31,30)),
PADGRP(OWRCFG, 0, 0, __BITS(16,12), __BITS(24,20), __BITS(31,30)),
PADGRP(SPICFG, 0, 0, __BITS(16,12), __BITS(24,20), __BITS(31,30)),
PADGRP(UAACFG, 0, 0, __BITS(16,12), __BITS(24,20), __BITS(31,30)),
PADGRP(UABCFG, 0, 0, __BITS(16,12), __BITS(24,20), __BITS(31,30)),
PADGRP(UART2CFG, 0, 0, __BITS(16,12), __BITS(24,20), __BITS(31,30)),
PADGRP(UART3CFG, 0, 0, __BITS(16,12), __BITS(24,20), __BITS(31,30)),
PADGRP(UDACFG, 0, 0, __BITS(16,12), __BITS(24,20), __BITS(31,30)),
PADGRP(ATCFG1, 0, __BITS(7,6), __BITS(18,12), __BITS(26,20), __BITS(31,30)),
PADGRP(ATCFG2, 0, __BITS(7,6), __BITS(18,12), __BITS(26,20), __BITS(31,30)),
PADGRP(ATCFG3, 0, __BITS(7,6), __BITS(18,12), __BITS(26,20), __BITS(31,30)),
PADGRP(ATCFG4, 0, __BITS(7,6), __BITS(18,12), __BITS(26,20), __BITS(31,30)),
PADGRP(ATCFG5, 0, 0, __BITS(18,14), __BITS(23,19), __BITS(31,30)),
PADGRP(ATCFG6, 0, __BITS(7,6), __BITS(18,12), __BITS(26,20), __BITS(31,30)),
PADGRP(GMECFG, 0, 0, __BITS(18,14), __BITS(23,19), __BITS(31,30)),
PADGRP(GMFCFG, 0, 0, __BITS(18,14), __BITS(23,19), __BITS(31,30)),
PADGRP(GMGCFG, 0, 0, __BITS(18,14), __BITS(23,19), __BITS(31,30)),
PADGRP(GMHCFG, 0, 0, __BITS(18,14), __BITS(23,19), __BITS(31,30)),
PADGRP(HVCFG0, 0, 0, __BITS(16,12), 0, 0),
PADGRP(GPVCFG, 0, 0, __BITS(16,12), __BITS(24,20), __BITS(31,30)),
PADGRP(USB_VBUS_EN_CFG, 0, 0, __BITS(16,12), __BITS(24,20), __BITS(31,30)),
};
struct tegra_mpio_pinmux {
u_int pm_reg;
const char * pm_func[4];
int pm_flags;
#define MPIOF_OD 0x1
#define MPIOF_IO_RESET 0x2
#define MPIOF_RCV_SEL 0x4
};
static const struct tegra_mpio_pinmux tegra_mpio_pinmux[] = {
{ PINMUX_AUX_ULPI_DATA0_REG, { "spi3", "hsi", "uarta", "ulpi" }, 0 },
{ PINMUX_AUX_ULPI_DATA1_REG, { "spi3", "hsi", "uarta", "ulpi" }, 0 },
{ PINMUX_AUX_ULPI_DATA2_REG, { "spi3", "hsi", "uarta", "ulpi" }, 0 },
{ PINMUX_AUX_ULPI_DATA3_REG, { "spi3", "hsi", "uarta", "ulpi" }, 0 },
{ PINMUX_AUX_ULPI_DATA4_REG, { "spi3", "hsi", "uarta", "ulpi" }, 0 },
{ PINMUX_AUX_ULPI_DATA5_REG, { "spi3", "hsi", "uarta", "ulpi" }, 0 },
{ PINMUX_AUX_ULPI_DATA6_REG, { "spi3", "hsi", "uarta", "ulpi" }, 0 },
{ PINMUX_AUX_ULPI_DATA7_REG, { "spi3", "hsi", "uarta", "ulpi" }, 0 },
{ PINMUX_AUX_ULPI_CLK_REG, { "spi1", "spi5", "uartd", "ulpi" }, 0 },
{ PINMUX_AUX_ULPI_DIR_REG, { "spi1", "spi5", "uartd", "ulpi" }, 0 },
{ PINMUX_AUX_ULPI_NXT_REG, { "spi1", "spi5", "uartd", "ulpi" }, 0 },
{ PINMUX_AUX_ULPI_STP_REG, { "spi1", "spi5", "uartd", "ulpi" }, 0 },
{ PINMUX_AUX_DAP3_FS_REG, { "i2s2", "spi5", "displaya", "displayb" }, 0 },
{ PINMUX_AUX_DAP3_DIN_REG, { "i2s2", "spi5", "displaya", "displayb" }, 0 },
{ PINMUX_AUX_DAP3_DOUT_REG, { "i2s2", "spi5", "displaya", NULL }, 0 },
{ PINMUX_AUX_DAP3_SCLK_REG, { "i2s2", "spi5", NULL, "displayb" }, 0 },
{ PINMUX_AUX_GPIO_PV0_REG, { NULL, NULL, NULL, NULL }, 0 },
{ PINMUX_AUX_GPIO_PV1_REG, { NULL, NULL, NULL, NULL }, 0 },
{ PINMUX_AUX_SDMMC1_CLK_REG, { "sdmmc1", "clk12", NULL, NULL }, 0 },
{ PINMUX_AUX_SDMMC1_CMD_REG, { "sdmmc1", "spdif", "spi4", "uarta" }, 0 },
{ PINMUX_AUX_SDMMC1_DAT3_REG, { "sdmmc1", "spdif", "spi4", "uarta" }, 0 },
{ PINMUX_AUX_SDMMC1_DAT2_REG, { "sdmmc1", "pwm0", "spi4", "uarta" }, 0 },
{ PINMUX_AUX_SDMMC1_DAT1_REG, { "sdmmc1", "pwm1", "spi4", "uarta" }, 0 },
{ PINMUX_AUX_SDMMC1_DAT0_REG, { "sdmmc1", NULL, "spi4", "uarta" }, 0 },
{ PINMUX_AUX_CLK2_OUT_REG, { "extperiph2", NULL, NULL, NULL }, 0 },
{ PINMUX_AUX_CLK2_REQ_REG, { "dap", NULL, NULL, NULL }, 0 },
{ PINMUX_AUX_HDMI_INT_REG, { NULL, NULL, NULL, NULL }, MPIOF_RCV_SEL },
{ PINMUX_AUX_DDC_SCL_REG, { "i2c4", NULL, NULL, NULL }, MPIOF_RCV_SEL },
{ PINMUX_AUX_DDC_SDA_REG, { "i2c4", NULL, NULL, NULL }, MPIOF_RCV_SEL },
{ PINMUX_AUX_UART2_RXD_REG, { "irda", "spdif", "uarta", "spi4" }, 0 },
{ PINMUX_AUX_UART2_TXD_REG, { "irda", "spdif", "uarta", "spi4" }, 0 },
{ PINMUX_AUX_UART2_RTS_N_REG, { "uarta", "uartb", "gmi", "spi4" }, 0 },
{ PINMUX_AUX_UART2_CTS_N_REG, { "uarta", "uartb", "gmi", "spi4" }, 0 },
{ PINMUX_AUX_UART3_TXD_REG, { "uartc", NULL, "gmi", "spi4" }, 0 },
{ PINMUX_AUX_UART3_RXD_REG, { "uartc", NULL, "gmi", "spi4" }, 0 },
{ PINMUX_AUX_UART3_CTS_N_REG, { "uartc", "sdmmc1", "dtv", "gmi" }, 0 },
{ PINMUX_AUX_UART3_RTS_N_REG, { "uartc", "pwm0", "dtv", "gmi" }, 0 },
{ PINMUX_AUX_GPIO_PU0_REG, { "owr", "uarta", "gmi", NULL }, 0 },
{ PINMUX_AUX_GPIO_PU1_REG, { NULL, "uarta", "gmi", NULL }, 0 },
{ PINMUX_AUX_GPIO_PU2_REG, { NULL, "uarta", "gmi", NULL }, 0 },
{ PINMUX_AUX_GPIO_PU3_REG, { "pwm0", "uarta", "gmi", "displayb" }, 0 },
{ PINMUX_AUX_GPIO_PU4_REG, { "pwm1", "uarta", "gmi", "displayb" }, 0 },
{ PINMUX_AUX_GPIO_PU5_REG, { "pwm2", "uarta", "gmi", "displayb" }, 0 },
{ PINMUX_AUX_GPIO_PU6_REG, { "pwm3", "uarta", NULL, "gmi" }, 0 },
{ PINMUX_AUX_GEN1_I2C_SDA_REG, { "i2c1", NULL, NULL, NULL }, MPIOF_OD },
{ PINMUX_AUX_GEN1_I2C_SCL_REG, { "i2c1", NULL, NULL, NULL }, MPIOF_OD },
{ PINMUX_AUX_DAP4_FS_REG, { "i2s3", "gmi", "dtv", NULL }, 0 },
{ PINMUX_AUX_DAP4_DIN_REG, { "i2s3", "gmi", NULL, NULL }, 0 },
{ PINMUX_AUX_DAP4_DOUT_REG, { "i2s3", "gmi", "dtv", NULL }, 0 },
{ PINMUX_AUX_DAP4_SCLK_REG, { "i2s3", "gmi", NULL, NULL }, 0 },
{ PINMUX_AUX_CLK3_OUT_REG, { "extperiph3", NULL, NULL, NULL }, 0 },
{ PINMUX_AUX_CLK3_REQ_REG, { "dev3", NULL, NULL, NULL }, 0 },
{ PINMUX_AUX_GPIO_PC7_REG, { NULL, NULL, "gmi", "gmi_alt" }, 0 },
{ PINMUX_AUX_GPIO_PI5_REG, { "sdmmc2a", NULL, "gmi", NULL }, 0 },
{ PINMUX_AUX_GPIO_PI7_REG, { NULL, "trace", "gmi", "dtv" }, 0 },
{ PINMUX_AUX_GPIO_PK0_REG, { NULL, "sdmmc3", "gmi", "soc" }, 0 },
{ PINMUX_AUX_GPIO_PK1_REG, { "sdmmc2a", "trace", "gmi", NULL }, 0 },
{ PINMUX_AUX_GPIO_PJ0_REG, { NULL, NULL, "gmi", "usb" }, 0 },
{ PINMUX_AUX_GPIO_PJ2_REG, { NULL, NULL, "gmi", "soc" }, 0 },
{ PINMUX_AUX_GPIO_PK3_REG, { "sdmmc2a", "trace", "gmi", "ccla" }, 0 },
{ PINMUX_AUX_GPIO_PK4_REG, { "sdmmc2a", NULL, "gmi", "gmi_alt" }, 0 },
{ PINMUX_AUX_GPIO_PK2_REG, { NULL, NULL, "gmi", NULL }, 0 },
{ PINMUX_AUX_GPIO_PI3_REG, { NULL, NULL, "gmi", "spi4" }, 0 },
{ PINMUX_AUX_GPIO_PI6_REG, { NULL, NULL, "gmi", "sdmmc2a" }, 0 },
{ PINMUX_AUX_GPIO_PG0_REG, { NULL, NULL, "gmi", NULL }, 0 },
{ PINMUX_AUX_GPIO_PG1_REG, { NULL, NULL, "gmi", NULL }, 0 },
{ PINMUX_AUX_GPIO_PG2_REG, { NULL, "trace", "gmi", NULL }, 0 },
{ PINMUX_AUX_GPIO_PG3_REG, { NULL, "trace", "gmi", NULL }, 0 },
{ PINMUX_AUX_GPIO_PG4_REG, { NULL, "tmds", "gmi", "spi4" }, 0 },
{ PINMUX_AUX_GPIO_PG5_REG, { NULL, NULL, "gmi", "spi4" }, 0 },
{ PINMUX_AUX_GPIO_PG6_REG, { NULL, NULL, "gmi", "spi4" }, 0 },
{ PINMUX_AUX_GPIO_PG7_REG, { NULL, NULL, "gmi", "spi4" }, 0 },
{ PINMUX_AUX_GPIO_PH0_REG, { "pwm0", "trace", "gmi", "dtv" }, 0 },
{ PINMUX_AUX_GPIO_PH1_REG, { "pwm1", "tmds", "gmi", "displaya" }, 0 },
{ PINMUX_AUX_GPIO_PH2_REG, { "pwm2", "tmds", "gmi", "cldvfs" }, 0 },
{ PINMUX_AUX_GPIO_PH3_REG, { "pwm3", "spi4", "gmi", "cldvfs" }, 0 },
{ PINMUX_AUX_GPIO_PH4_REG, { "sdmmc2a", NULL, "gmi", NULL }, 0 },
{ PINMUX_AUX_GPIO_PH5_REG, { "sdmmc2a", NULL, "gmi", NULL }, 0 },
{ PINMUX_AUX_GPIO_PH6_REG, { "sdmmc2a", "trace", "gmi", "dtv" }, 0 },
{ PINMUX_AUX_GPIO_PH7_REG, { "sdmmc2a", "trace", "gmi", "dtv" }, 0 },
{ PINMUX_AUX_GPIO_PJ7_REG, { "uartd", NULL, "gmi", "gmi_alt" }, 0 },
{ PINMUX_AUX_GPIO_PB0_REG, { "uartd", NULL, "gmi", NULL }, 0 },
{ PINMUX_AUX_GPIO_PB1_REG, { "uartd", NULL, "gmi", NULL }, 0 },
{ PINMUX_AUX_GPIO_PK7_REG, { "uartd", NULL, "gmi", NULL }, 0 },
{ PINMUX_AUX_GPIO_PI0_REG, { NULL, NULL, "gmi", NULL }, 0 },
{ PINMUX_AUX_GPIO_PI1_REG, { NULL, NULL, "gmi", NULL }, 0 },
{ PINMUX_AUX_GPIO_PI2_REG, { "sdmmc2a", "trace", "gmi", NULL }, 0 },
{ PINMUX_AUX_GPIO_PI4_REG, { "spi4", "trace", "gmi", "displaya" }, 0 },
{ PINMUX_AUX_GEN2_I2C_SCL_REG, { "i2c2", NULL, "gmi", NULL }, MPIOF_OD },
{ PINMUX_AUX_GEN2_I2C_SDA_REG, { "i2c2", NULL, "gmi", NULL }, MPIOF_OD },
{ PINMUX_AUX_SDMMC4_CLK_REG, { "sdmmc4", NULL, "gmi", NULL }, MPIOF_IO_RESET },
{ PINMUX_AUX_SDMMC4_CMD_REG, { "sdmmc4", NULL, "gmi", NULL }, MPIOF_IO_RESET },
{ PINMUX_AUX_SDMMC4_DAT0_REG, { "sdmmc4", "spi3", "gmi", NULL }, MPIOF_IO_RESET },
{ PINMUX_AUX_SDMMC4_DAT1_REG, { "sdmmc4", "spi3", "gmi", NULL }, MPIOF_IO_RESET },
{ PINMUX_AUX_SDMMC4_DAT2_REG, { "sdmmc4", "spi3", "gmi", NULL }, MPIOF_IO_RESET },
{ PINMUX_AUX_SDMMC4_DAT3_REG, { "sdmmc4", "spi3", "gmi", NULL }, MPIOF_IO_RESET },
{ PINMUX_AUX_SDMMC4_DAT4_REG, { "sdmmc4", "spi3", "gmi", NULL }, MPIOF_IO_RESET },
{ PINMUX_AUX_SDMMC4_DAT5_REG, { "sdmmc4", "spi3", NULL, NULL }, MPIOF_IO_RESET },
{ PINMUX_AUX_SDMMC4_DAT6_REG, { "sdmmc4", "spi3", "gmi", NULL }, MPIOF_IO_RESET },
{ PINMUX_AUX_SDMMC4_DAT7_REG, { "sdmmc4", NULL, "gmi", NULL }, MPIOF_IO_RESET },
{ PINMUX_AUX_CAM_MCLK_REG, { "vi", "vi_alt1", "vi_alt3", "sdmmc2b" }, 0 },
{ PINMUX_AUX_GPIO_PCC1_REG, { "i2s4", NULL, NULL, "sdmmc2b" }, 0 },
{ PINMUX_AUX_GPIO_PBB0_REG, { "vgp6", "vimclk2", "sdmmc2b", "vimclk2_alt" }, 0 },
{ PINMUX_AUX_CAM_I2C_SCL_REG, { "vgp1", "i2c3", NULL, "sdmmc2b" }, MPIOF_OD },
{ PINMUX_AUX_CAM_I2C_SDA_REG, { "vgp2", "i2c3", NULL, "sdmmc2b" }, MPIOF_OD },
{ PINMUX_AUX_GPIO_PBB3_REG, { "vgp3", "displaya", "displayb", "sdmmc2b" }, 0 },
{ PINMUX_AUX_GPIO_PBB4_REG, { "vgp4", "displaya", "displayb", "sdmmc2b" }, 0 },
{ PINMUX_AUX_GPIO_PBB5_REG, { "vgp5", "displaya", NULL, "sdmmc2b" }, 0 },
{ PINMUX_AUX_GPIO_PBB6_REG, { "i2s4", NULL, "displayb", "sdmmc2b" }, 0 },
{ PINMUX_AUX_GPIO_PBB7_REG, { "i2s4", NULL, NULL, "sdmmc2b" }, 0 },
{ PINMUX_AUX_GPIO_PCC2_REG, { "i2s4", NULL, "sdmmc3", "sdmmc2b" }, 0 },
{ PINMUX_AUX_JTAG_RTCK_REG, { "rtck", NULL, NULL, NULL }, 0 },
{ PINMUX_AUX_PWR_I2C_SCL_REG, { "i2cpwr", NULL, NULL, NULL }, MPIOF_OD },
{ PINMUX_AUX_PWR_I2C_SDA_REG, { "i2cpwr", NULL, NULL, NULL }, MPIOF_OD },
{ PINMUX_AUX_KB_ROW0_REG, { "kbc", NULL, NULL, NULL }, 0 },
{ PINMUX_AUX_KB_ROW1_REG, { "kbc", NULL, NULL, NULL }, 0 },
{ PINMUX_AUX_KB_ROW2_REG, { "kbc", NULL, NULL, NULL }, 0 },
{ PINMUX_AUX_KB_ROW3_REG, { "kbc", "displaya", "sys", "displayb" }, 0 },
{ PINMUX_AUX_KB_ROW4_REG, { "kbc", "displaya", NULL, "displayb" }, 0 },
{ PINMUX_AUX_KB_ROW5_REG, { "kbc", "displaya", NULL, "displayb" }, 0 },
{ PINMUX_AUX_KB_ROW6_REG, { "kbc", "displaya", "displaya_alt", "displayb" }, 0 },
{ PINMUX_AUX_KB_ROW7_REG, { "kbc", NULL, "cldvfs", "uarta" }, 0 },
{ PINMUX_AUX_KB_ROW8_REG, { "kbc", NULL, "cldvfs", "uarta" }, 0 },
{ PINMUX_AUX_KB_ROW9_REG, { "kbc", NULL, NULL, "uarta" }, 0 },
{ PINMUX_AUX_KB_ROW10_REG, { "kbc", NULL, NULL, "uarta" }, 0 },
{ PINMUX_AUX_KB_ROW11_REG, { "kbc", NULL, NULL, "irda" }, 0 },
{ PINMUX_AUX_KB_ROW12_REG, { "kbc", NULL, NULL, "irda" }, 0 },
{ PINMUX_AUX_KB_ROW13_REG, { "kbc", NULL, "spi2", NULL }, 0 },
{ PINMUX_AUX_KB_ROW14_REG, { "kbc", NULL, "spi2", NULL }, 0 },
{ PINMUX_AUX_KB_ROW15_REG, { "kbc", "soc", NULL, NULL }, 0 },
{ PINMUX_AUX_KB_COL0_REG, { "kbc", NULL, "spi2", NULL }, 0 },
{ PINMUX_AUX_KB_COL1_REG, { "kbc", NULL, "spi2", NULL }, 0 },
{ PINMUX_AUX_KB_COL2_REG, { "kbc", NULL, "spi2", NULL }, 0 },
{ PINMUX_AUX_KB_COL3_REG, { "kbc", "displaya", "pwm2", "uarta" }, 0 },
{ PINMUX_AUX_KB_COL4_REG, { "kbc", "owr", "sdmmc3", "uarta" }, 0 },
{ PINMUX_AUX_KB_COL5_REG, { "kbc", NULL, "sdmmc3", NULL }, 0 },
{ PINMUX_AUX_KB_COL6_REG, { "kbc", NULL, "spi2", "uartd" }, 0 },
{ PINMUX_AUX_KB_COL7_REG, { "kbc", NULL, "spi2", "uartd" }, 0 },
{ PINMUX_AUX_CLK_32K_OUT_REG, { "blink", "soc", NULL, NULL }, 0 },
{ PINMUX_AUX_CORE_PWR_REQ_REG, { "pwron", NULL, NULL, NULL }, 0 },
{ PINMUX_AUX_CPU_PWR_REQ_REG, { "cpu", NULL, NULL, NULL }, 0 },
{ PINMUX_AUX_PWR_INT_N_REG, { "pmi", NULL, NULL, NULL }, 0 },
{ PINMUX_AUX_CLK_32K_IN_REG, { "clk", NULL, NULL, NULL }, 0 },
{ PINMUX_AUX_OWR_REG, { "owr", NULL, NULL, NULL }, MPIOF_RCV_SEL },
{ PINMUX_AUX_DAP1_FS_REG, { "i2s0", "hda", "gmi", NULL }, 0 },
{ PINMUX_AUX_DAP1_DIN_REG, { "i2s0", "hda", "gmi", NULL }, 0 },
{ PINMUX_AUX_DAP1_DOUT_REG, { "i2s0", "hda", "gmi", "sata" }, 0 },
{ PINMUX_AUX_DAP1_SCLK_REG, { "i2s0", "hda", "gmi", NULL }, 0 },
{ PINMUX_AUX_DAP_MCLK1_REQ_REG, { "dap", "dap1", "sata", NULL }, 0 },
{ PINMUX_AUX_DAP_MCLK1_REG, { "extperiph1", "dap2", NULL, NULL }, 0 },
{ PINMUX_AUX_SPDIF_IN_REG, { "spdif", NULL, NULL, "i2c3" }, 0 },
{ PINMUX_AUX_SPDIF_OUT_REG, { "spdif", NULL, NULL, "i2c3" }, 0 },
{ PINMUX_AUX_DAP2_FS_REG, { "i2s1", "hda", "gmi", NULL }, 0 },
{ PINMUX_AUX_DAP2_DIN_REG, { "i2s1", "hda", "gmi", NULL }, 0 },
{ PINMUX_AUX_DAP2_DOUT_REG, { "i2s1", "hda", "gmi", NULL }, 0 },
{ PINMUX_AUX_DAP2_SCLK_REG, { "i2s1", "hda", "gmi", NULL }, 0 },
{ PINMUX_AUX_DVFS_PWM_REG, { "spi6", "cldvfs", "gmi", NULL }, 0 },
{ PINMUX_AUX_GPIO_X1_AUD_REG, { "spi6", NULL, "gmi", NULL }, 0 },
{ PINMUX_AUX_GPIO_X3_AUD_REG, { "spi6", "spi1", "gmi", NULL }, 0 },
{ PINMUX_AUX_DVFS_CLK_REG, { "spi6", "cldvfs", "gmi", NULL }, 0 },
{ PINMUX_AUX_GPIO_X4_AUD_REG, { "gmi", "spi1", "spi2", "dap2" }, 0 },
{ PINMUX_AUX_GPIO_X5_AUD_REG, { "gmi", "spi1", "spi2", NULL }, 0 },
{ PINMUX_AUX_GPIO_X6_AUD_REG, { "spi6", "spi1", "spi2", "gmi" }, 0 },
{ PINMUX_AUX_GPIO_X7_AUD_REG, { NULL, "spi1", "spi2", NULL }, 0 },
{ PINMUX_AUX_SDMMC3_CLK_REG, { "sdmmc3", NULL, NULL, "spi3" }, 0 },
{ PINMUX_AUX_SDMMC3_CMD_REG, { "sdmmc3", "pwm3", "uarta", "spi3" }, 0 },
{ PINMUX_AUX_SDMMC3_DAT0_REG, { "sdmmc3", NULL, NULL, "spi3" }, 0 },
{ PINMUX_AUX_SDMMC3_DAT1_REG, { "sdmmc3", "pwm2", "uarta", "spi3" }, 0 },
{ PINMUX_AUX_SDMMC3_DAT2_REG, { "sdmmc3", "pwm1", "displaya", "spi3" }, 0 },
{ PINMUX_AUX_SDMMC3_DAT3_REG, { "sdmmc3", "pwm0", "dipslayb", "spi3" }, 0 },
{ PINMUX_AUX_PEX_L0_RST_N_REG, { "pe0", NULL, NULL, NULL }, 0 },
{ PINMUX_AUX_PEX_L0_CLKREQ_N_REG, { "pe0", NULL, NULL, NULL }, 0 },
{ PINMUX_AUX_PEX_WAKE_N_REG, { "pe", NULL, NULL, NULL }, 0 },
{ PINMUX_AUX_PEX_L1_RST_N_REG, { "pe1", NULL, NULL, NULL }, 0 },
{ PINMUX_AUX_PEX_L1_CLKREQ_N_REG, { "pe1", NULL, NULL, NULL }, 0 },
{ PINMUX_AUX_HDMI_CEC_REG, { "cec", NULL, NULL, NULL }, MPIOF_OD },
{ PINMUX_AUX_SDMMC1_WP_N_REG, { "sdmmc1", "clk12", "spi4", "uarta" }, 0 },
{ PINMUX_AUX_SDMMC3_CD_N_REG, { "sdmmc3", "owr", NULL, NULL }, 0 },
{ PINMUX_AUX_GPIO_W2_AUD_REG, { "spi6", NULL, "spi2", "i2c1" }, 0 },
{ PINMUX_AUX_GPIO_W3_AUD_REG, { "spi6", "spi1", "spi2", "i2c1" }, 0 },
{ PINMUX_AUX_USB_VBUS_EN0_REG, { "usb", NULL, NULL, NULL }, MPIOF_OD },
{ PINMUX_AUX_USB_VBUS_EN1_REG, { "usb", NULL, NULL, NULL }, MPIOF_OD },
{ PINMUX_AUX_SDMMC3_CLK_LB_IN_REG, { "sdmmc3", NULL, NULL, NULL }, 0 },
{ PINMUX_AUX_SDMMC3_CLK_LB_OUT_REG, { "sdmmc3", NULL, NULL, NULL }, 0 },
{ PINMUX_AUX_GMI_CLK_LB_REG, { "sdmmc2a", NULL, "gmi", NULL }, 0 },
{ PINMUX_AUX_RESET_OUT_N_REG, { NULL, NULL, NULL, "reset_out_n" }, 0 },
{ PINMUX_AUX_KB_ROW16_REG, { "kbc", NULL, NULL, "uartc" }, 0 },
{ PINMUX_AUX_KB_ROW17_REG, { "kbc", NULL, NULL, "uartc" }, 0 },
{ PINMUX_AUX_USB_VBUS_EN2_REG, { "usb", NULL, NULL, NULL }, MPIOF_OD },
{ PINMUX_AUX_GPIO_PFF2_REG, { "sata", NULL, NULL, NULL }, MPIOF_OD },
{ PINMUX_AUX_DP_HPD_REG, { "dp", NULL, NULL, NULL }, 0 },
};
struct tegra_mpio_softc {
device_t sc_dev;
bus_space_tag_t sc_bst;
bus_space_handle_t sc_bsh;
};
CFATTACH_DECL_NEW(tegra_mpio, sizeof(struct tegra_mpio_softc),
tegra_mpio_match, tegra_mpio_attach, NULL, NULL);
#define MPIO_WRITE(sc, reg, val) \
bus_space_write_4((sc)->sc_bst, (sc)->sc_bsh, (reg), (val))
#define MPIO_READ(sc, reg) \
bus_space_read_4((sc)->sc_bst, (sc)->sc_bsh, (reg))
static int
tegra_mpio_match(device_t parent, cfdata_t cf, void *aux)
{
const char * const compatible[] = { "nvidia,tegra124-pinmux", NULL };
struct fdt_attach_args * const faa = aux;
return of_match_compatible(faa->faa_phandle, compatible);
}
static void
tegra_mpio_attach(device_t parent, device_t self, void *aux)
{
struct tegra_mpio_softc * const sc = device_private(self);
struct fdt_attach_args * const faa = aux;
bus_addr_t addr;
bus_size_t size;
int error;
if (fdtbus_get_reg(faa->faa_phandle, 0, &addr, &size) != 0) {
aprint_error(": couldn't get registers\n");
return;
}
sc->sc_dev = self;
sc->sc_bst = faa->faa_bst;
error = bus_space_map(sc->sc_bst, addr, size, 0, &sc->sc_bsh);
if (error) {
aprint_error(": couldn't map %#llx: %d", (uint64_t)addr, error);
return;
}
aprint_naive("\n");
aprint_normal(": MPIO\n");
}
static struct tegra_mpio_softc *
tegra_mpio_lookup_softc(void)
{
device_t dev = device_find_by_driver_unit("tegrampio", 0);
KASSERT(dev != NULL);
return device_private(dev);
}
static const struct tegra_mpio_padgrp *
tegra_mpio_lookup_padgrp(u_int reg)
{
u_int n;
for (n = 0; n < __arraycount(tegra_mpio_padgrp); n++) {
if (tegra_mpio_padgrp[n].pg_reg == reg) {
return &tegra_mpio_padgrp[n];
}
}
return NULL;
}
static const struct tegra_mpio_pinmux *
tegra_mpio_lookup_pinmux(u_int reg)
{
u_int n;
for (n = 0; n < __arraycount(tegra_mpio_pinmux); n++) {
if (tegra_mpio_pinmux[n].pm_reg == reg) {
return &tegra_mpio_pinmux[n];
}
}
return NULL;
}
void
tegra_mpio_padctlgrp_read(u_int reg, struct tegra_mpio_padctlgrp *ctl)
{
struct tegra_mpio_softc * const sc = tegra_mpio_lookup_softc();
const struct tegra_mpio_padgrp *pg;
pg = tegra_mpio_lookup_padgrp(reg);
KASSERT(pg != NULL);
const uint32_t val = MPIO_READ(sc, reg);
ctl->preemp = pg->pg_preemp ? __SHIFTOUT(val, pg->pg_preemp) : -1;
ctl->hsm = __SHIFTOUT(val, pg->pg_hsm);
ctl->schmt = __SHIFTOUT(val, pg->pg_schmt);
ctl->drv_type = pg->pg_drv_type ? __SHIFTOUT(val, pg->pg_drv_type) : -1;
ctl->drvdn = __SHIFTOUT(val, pg->pg_drvdn);
ctl->drvup = pg->pg_drvup ? __SHIFTOUT(val, pg->pg_drvup) : -1;
ctl->slwr = __SHIFTOUT(val, pg->pg_slwr);
ctl->slwf = pg->pg_slwf ? __SHIFTOUT(val, pg->pg_slwf) : -1;
}
void
tegra_mpio_padctlgrp_write(u_int reg, const struct tegra_mpio_padctlgrp *ctl)
{
struct tegra_mpio_softc * const sc = tegra_mpio_lookup_softc();
const struct tegra_mpio_padgrp *pg;
uint32_t val;
val = 0;
pg = tegra_mpio_lookup_padgrp(reg);
KASSERT(pg != NULL);
val |= pg->pg_preemp ? __SHIFTIN(ctl->preemp, pg->pg_preemp) : 0;
val |= __SHIFTIN(ctl->hsm, pg->pg_hsm);
val |= __SHIFTIN(ctl->schmt, pg->pg_schmt);
val |= pg->pg_drv_type ? __SHIFTIN(ctl->drv_type, pg->pg_drv_type) : 0;
val |= __SHIFTIN(ctl->drvdn, pg->pg_drvdn);
val |= pg->pg_drvup ? __SHIFTIN(ctl->drvup, pg->pg_drvup) : 0;
val |= __SHIFTIN(ctl->slwr, pg->pg_slwr);
val |= pg->pg_slwf ? __SHIFTIN(ctl->slwf, pg->pg_slwf) : 0;
MPIO_WRITE(sc, reg, val);
}
void
tegra_mpio_pinmux_set_config(u_int reg, int flags, const char *func)
{
struct tegra_mpio_softc * const sc = tegra_mpio_lookup_softc();
const struct tegra_mpio_pinmux *pm;
uint32_t val;
int funcno, n;
pm = tegra_mpio_lookup_pinmux(reg);
KASSERT(pm != NULL);
for (n = 0, funcno = -1; n < __arraycount(pm->pm_func); n++) {
if (strcmp(pm->pm_func[n], func) == 0) {
funcno = n;
break;
}
}
KASSERT(funcno != -1);
val = MPIO_READ(sc, reg);
if (flags & GPIO_PIN_INPUT) {
val |= PINMUX_AUX_E_INPUT;
} else if (flags & GPIO_PIN_OUTPUT) {
val &= ~PINMUX_AUX_E_INPUT;
}
if (flags & GPIO_PIN_TRISTATE) {
val |= PINMUX_AUX_TRISTATE;
} else {
val &= ~PINMUX_AUX_TRISTATE;
}
val &= ~PINMUX_AUX_PUPD;
if (flags & GPIO_PIN_PULLUP) {
val |= __SHIFTIN(PINMUX_AUX_PUPD_PULL_UP,
PINMUX_AUX_PUPD);
} else if (flags & GPIO_PIN_PULLDOWN) {
val |= __SHIFTIN(PINMUX_AUX_PUPD_PULL_DOWN,
PINMUX_AUX_PUPD);
} else {
val |= __SHIFTIN(PINMUX_AUX_PUPD_NORMAL,
PINMUX_AUX_PUPD);
}
if (flags & GPIO_PIN_OPENDRAIN) {
val |= PINMUX_AUX_OD;
} else {
val &= ~PINMUX_AUX_OD;
}
val &= ~PINMUX_AUX_PM;
val |= __SHIFTIN(funcno, PINMUX_AUX_PM);
MPIO_WRITE(sc, reg, val);
}
void
tegra_mpio_pinmux_set_io_reset(u_int reg, bool set)
{
struct tegra_mpio_softc * const sc = tegra_mpio_lookup_softc();
uint32_t val;
val = MPIO_READ(sc, reg);
if (set) {
val |= PINMUX_AUX_IO_RESET;
} else {
val &= ~PINMUX_AUX_IO_RESET;
}
MPIO_WRITE(sc, reg, val);
}
void
tegra_mpio_pinmux_set_rcv_sel(u_int reg, bool set)
{
struct tegra_mpio_softc * const sc = tegra_mpio_lookup_softc();
uint32_t val;
val = MPIO_READ(sc, reg);
if (set) {
val |= PINMUX_AUX_RCV_SEL;
} else {
val &= ~PINMUX_AUX_RCV_SEL;
}
MPIO_WRITE(sc, reg, val);
}
void
tegra_mpio_pinmux_get_config(u_int reg, int *flags, const char **func)
{
struct tegra_mpio_softc * const sc = tegra_mpio_lookup_softc();
const struct tegra_mpio_pinmux *pm;
pm = tegra_mpio_lookup_pinmux(reg);
KASSERT(pm != NULL);
const uint32_t val = MPIO_READ(sc, reg);
*flags = 0;
if (func) {
*func = pm->pm_func[__SHIFTOUT(val, PINMUX_AUX_PM)];
}
switch (__SHIFTOUT(val, PINMUX_AUX_PUPD)) {
case PINMUX_AUX_PUPD_PULL_DOWN:
*flags |= GPIO_PIN_PULLDOWN;
break;
case PINMUX_AUX_PUPD_PULL_UP:
*flags |= GPIO_PIN_PULLUP;
break;
}
if (val & PINMUX_AUX_TRISTATE) {
*flags |= GPIO_PIN_TRISTATE;
}
if (val & PINMUX_AUX_E_INPUT) {
*flags |= GPIO_PIN_INPUT;
} else {
*flags |= GPIO_PIN_OUTPUT;
}
if (val & PINMUX_AUX_OD) {
*flags |= GPIO_PIN_OPENDRAIN;
}
}
bool
tegra_mpio_pinmux_get_io_reset(u_int reg)
{
struct tegra_mpio_softc * const sc = tegra_mpio_lookup_softc();
const uint32_t val = MPIO_READ(sc, reg);
return !!(val & PINMUX_AUX_IO_RESET);
}
bool
tegra_mpio_pinmux_get_rcv_sel(u_int reg)
{
struct tegra_mpio_softc * const sc = tegra_mpio_lookup_softc();
const uint32_t val = MPIO_READ(sc, reg);
return !!(val & PINMUX_AUX_RCV_SEL);
}
#if defined(DDB)
void tegra_mpio_dump(void);
void
tegra_mpio_dump(void)
{
const struct tegra_mpio_padgrp *pg;
const struct tegra_mpio_pinmux *pm;
struct tegra_mpio_padctlgrp ctl;
const char *func;
int config;
device_t dev;
u_int n;
dev = device_find_by_driver_unit("tegrampio", 0);
if (dev == NULL)
return;
printf("Dumping pad groups:\n");
for (n = 0; n < __arraycount(tegra_mpio_padgrp); n++) {
pg = &tegra_mpio_padgrp[n];
tegra_mpio_padctlgrp_read(pg->pg_reg, &ctl);
printf(" #%u [+%#x]: preemp=%d, hsm=%d, schmt=%d,"
" drv_type=%d, drvdn=%d, drvup=%d, slwr=%d, slwf=%d\n",
n, pg->pg_reg, ctl.preemp, ctl.hsm, ctl.schmt,
ctl.drv_type, ctl.drvdn, ctl.drvup, ctl.slwr, ctl.slwf);
}
printf("Dumping pin muxes:\n");
for (n = 0; n < __arraycount(tegra_mpio_pinmux); n++) {
pm = &tegra_mpio_pinmux[n];
tegra_mpio_pinmux_get_config(pm->pm_reg, &config, &func);
printf(" #%u [+%#x]: config=%#x func=%s\n",
n, pm->pm_reg, config, func);
}
}
#endif