From 654699b334b85fbf9218da4890f036034ffe3dcb Mon Sep 17 00:00:00 2001 From: bouyer Date: Wed, 17 Apr 2013 14:31:02 +0000 Subject: [PATCH] Add a driver for the control module found in TI Sitara SoCs. This module controls the pad multiplexor (e.g. is a pad connected to the GPIO module or the I2C module) and some timing aspects; it also provides some specific information, like MAC address. From FreeBSD --- sys/arch/arm/omap/am335x_cm_padconf.c | 350 ++++++++++++++++++++++ sys/arch/arm/omap/sitara_cm.c | 415 ++++++++++++++++++++++++++ sys/arch/arm/omap/sitara_cm.h | 77 +++++ 3 files changed, 842 insertions(+) create mode 100644 sys/arch/arm/omap/am335x_cm_padconf.c create mode 100644 sys/arch/arm/omap/sitara_cm.c create mode 100644 sys/arch/arm/omap/sitara_cm.h diff --git a/sys/arch/arm/omap/am335x_cm_padconf.c b/sys/arch/arm/omap/am335x_cm_padconf.c new file mode 100644 index 000000000000..01358384177f --- /dev/null +++ b/sys/arch/arm/omap/am335x_cm_padconf.c @@ -0,0 +1,350 @@ +/* $NetBSD: am335x_cm_padconf.c,v 1.1 2013/04/17 14:31:02 bouyer Exp $ */ +/*- + * Copyright (c) 2012 Damjan Marion + * 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 AND CONTRIBUTORS ``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 OR CONTRIBUTORS 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 +__KERNEL_RCSID(0, "$NetBSD: am335x_cm_padconf.c,v 1.1 2013/04/17 14:31:02 bouyer Exp $"); + +#include +#include +#include +#include +#include + +#define _PIN(r, b, gp, gm, m0, m1, m2, m3, m4, m5, m6, m7) \ + { .reg_off = r, \ + .gpio_pin = gp, \ + .gpio_mode = gm, \ + .ballname = b, \ + .muxmodes[0] = m0, \ + .muxmodes[1] = m1, \ + .muxmodes[2] = m2, \ + .muxmodes[3] = m3, \ + .muxmodes[4] = m4, \ + .muxmodes[5] = m5, \ + .muxmodes[6] = m6, \ + .muxmodes[7] = m7, \ + } + +#define SLEWCTRL (0x01 << 6) /* faster(0) or slower(1) slew rate. */ +#define RXACTIVE (0x01 << 5) /* Input enable value for the Pad */ +#define PULLTYPESEL (0x01 << 4) /* Pad pullup/pulldown type selection */ +#define PULLUDEN (0x01 << 3) /* Pullup/pulldown disabled */ + +#define PADCONF_OUTPUT (0) +#define PADCONF_OUTPUT_PULLUP (PULLTYPESEL) +#define PADCONF_INPUT (RXACTIVE | PULLUDEN) +#define PADCONF_INPUT_PULLUP (RXACTIVE | PULLTYPESEL) +#define PADCONF_INPUT_PULLDOWN (RXACTIVE) +#define PADCONF_INPUT_PULLUP_SLOW (PADCONF_INPUT_PULLUP | SLEWCTRL) + +const struct sitara_cm_padstate ti_padstate_devmap[] = { + {"output", PADCONF_OUTPUT }, + {"output_pullup", PADCONF_OUTPUT_PULLUP }, + {"input", PADCONF_INPUT }, + {"input_pulldown", PADCONF_INPUT_PULLDOWN }, + {"input_pullup", PADCONF_INPUT_PULLUP }, + {"i2c", PADCONF_INPUT_PULLUP_SLOW }, + { .state = NULL } +}; + +const struct sitara_cm_padconf ti_padconf_devmap[] = { + _PIN(0x800, "GPMC_AD0", 32, 7,"gpmc_ad0", "mmc1_dat0", NULL, NULL, NULL, NULL, NULL, "gpio1_0"), + _PIN(0x804, "GPMC_AD1", 33, 7,"gpmc_ad1", "mmc1_dat1", NULL, NULL, NULL, NULL, NULL, "gpio1_1"), + _PIN(0x808, "GPMC_AD2", 34, 7,"gpmc_ad2", "mmc1_dat2", NULL, NULL, NULL, NULL, NULL, "gpio1_2"), + _PIN(0x80C, "GPMC_AD3", 35, 7,"gpmc_ad3", "mmc1_dat3", NULL, NULL, NULL, NULL, NULL, "gpio1_3"), + _PIN(0x810, "GPMC_AD4", 36, 7,"gpmc_ad4", "mmc1_dat4", NULL, NULL, NULL, NULL, NULL, "gpio1_4"), + _PIN(0x814, "GPMC_AD5", 37, 7,"gpmc_ad5", "mmc1_dat5", NULL, NULL, NULL, NULL, NULL, "gpio1_5"), + _PIN(0x818, "GPMC_AD6", 38, 7,"gpmc_ad6", "mmc1_dat6", NULL, NULL, NULL, NULL, NULL, "gpio1_6"), + _PIN(0x81C, "GPMC_AD7", 39, 7,"gpmc_ad7", "mmc1_dat7", NULL, NULL, NULL, NULL, NULL, "gpio1_7"), + _PIN(0x820, "GPMC_AD8", 22, 7, "gpmc_ad8", "lcd_data23", "mmc1_dat0", "mmc2_dat4", "ehrpwm2A", NULL, NULL, "gpio0_22"), + _PIN(0x824, "GPMC_AD9", 23, 7, "gpmc_ad9", "lcd_data22", "mmc1_dat1", "mmc2_dat5", "ehrpwm2B", NULL, NULL, "gpio0_23"), + _PIN(0x828, "GPMC_AD10", 26, 7, "gpmc_ad10", "lcd_data21", "mmc1_dat2", "mmc2_dat6", "ehrpwm2_tripzone_in", NULL, NULL, "gpio0_26"), + _PIN(0x82C, "GPMC_AD11", 27, 7, "gpmc_ad11", "lcd_data20", "mmc1_dat3", "mmc2_dat7", "ehrpwm0_synco", NULL, NULL, "gpio0_27"), + _PIN(0x830, "GPMC_AD12", 44, 7, "gpmc_ad12", "lcd_data19", "mmc1_dat4", "mmc2_dat0", "eQEP2A_in", "pr1_mii0_txd2", "pr1_pru0_pru_r30_14", "gpio1_12"), + _PIN(0x834, "GPMC_AD13", 45, 7, "gpmc_ad13", "lcd_data18", "mmc1_dat5", "mmc2_dat1", "eQEP2B_in", "pr1_mii0_txd1", "pr1_pru0_pru_r30_15", "gpio1_13"), + _PIN(0x838, "GPMC_AD14", 46, 7, "gpmc_ad14", "lcd_data17", "mmc1_dat6", "mmc2_dat2", "eQEP2_index", "pr1_mii0_txd0", "pr1_pru0_pru_r31_14", "gpio1_14"), + _PIN(0x83C, "GPMC_AD15", 47, 7, "gpmc_ad15", "lcd_data16", "mmc1_dat7", "mmc2_dat3", "eQEP2_strobe", "pr1_ecap0_ecap_capin_apwm_o", "pr1_pru0_pru_r31_15", "gpio1_15"), + _PIN(0x840, "GPMC_A0", 48, 7, "gpmc_a0", "gmii2_txen", "rgmii2_tctl", "rmii2_txen", "gpmc_a16", "pr1_mii_mt1_clk", "ehrpwm1_tripzone_input", "gpio1_16"), + _PIN(0x844, "GPMC_A1", 49, 7, "gpmc_a1", "gmii2_rxdv", "rgmii2_rctl", "mmc2_dat0", "gpmc_a17", "pr1_mii1_txd3", "ehrpwm0_synco", "gpio1_17"), + _PIN(0x848, "GPMC_A2", 50, 7, "gpmc_a2", "gmii2_txd3", "rgmii2_td3", "mmc2_dat1", "gpmc_a18", "pr1_mii1_txd2", "ehrpwm1A", "gpio1_18"), + _PIN(0x84C, "GPMC_A3", 51, 7, "gpmc_a3", "gmii2_txd2", "rgmii2_td2", "mmc2_dat2", "gpmc_a19", "pr1_mii1_txd1", "ehrpwm1B", "gpio1_19"), + _PIN(0x850, "GPMC_A4", 52, 7, "gpmc_a4", "gmii2_txd1", "rgmii2_td1", "rmii2_tdx1", "gpmc_a20", "pr1_mii1_txd0", "eQEP1A_in", "gpio1_20"), + _PIN(0x854, "GPMC_A5", 53, 7, "gpmc_a5", "gmii2_txd0", "rgmii2_td0", "rmii2_txd0", "gpmc_a21", "pr1_mii1_rxd3", "eQEP1B_in", "gpio1_21"), + _PIN(0x858, "GPMC_A6", 54, 7, "gpmc_a6", "gmii2_txclk", "rgmii2_tclk", "mmc2_dat4", "gpmc_a22", "pr1_mii1_rxd2", "eQEP1_index", "gpio1_22"), + _PIN(0x85C, "GPMC_A7", 55, 7, "gpmc_a7", "gmii2_rxclk", "rgmii2_rclk", "mmc2_dat5", "gpmc_a23", "pr1_mii1_rxd1", "eQEP1_strobe", "gpio1_23"), + _PIN(0x860, "GPMC_A8", 56, 7, "gpmc_a8", "gmii2_rxd3", "rgmii2_rd3", "mmc2_dat6", "gpmc_a24", "pr1_mii1_rxd0", "mcasp0_aclkx", "gpio1_24"), + _PIN(0x864, "GPMC_A9", 57, 7, "gmpc_a9", "gmii2_rxd2", "rgmii2_rd2", "mmc2_dat7 / rmii2_crs_dv", "gpmc_a25", "pr1_mii_mr1_clk", "mcasp0_fsx", "gpio1_25"), + _PIN(0x868, "GPMC_A10", 58, 7, "gmpc_a10", "gmii2_rxd1", "rgmii2_rd1", "rmii2_rxd1", "gpmc_a26", "pr1_mii1_rxdv", "mcasp0_arx0", "gpio1_26"), + _PIN(0x86C, "GPMC_A11", 59, 7, "gmpc_a11", "gmii2_rxd0", "rgmii2_rd0", "rmii2_rxd0", "gpmc_a27", "pr1_mii1_rxer", "mcasp0_axr1", "gpio1_27"), + _PIN(0x870, "GPMC_WAIT0", 30, 7, "gpmc_wait0", "gmii2_crs", "gpmc_csn4", "rmii2_crs_dv", "mmc1_sdcd", "pr1_mii1_col", "uart4_rxd", "gpio0_30"), + _PIN(0x874, "GPMC_WPn", 31, 7, "gpmc_wpn", "gmii2_rxerr", "gpmc_csn5", "rmii2_rxerr", "mmc2_sdcd", "pr1_mii1_txen", "uart4_txd", "gpio0_31"), + _PIN(0x878, "GPMC_BEn1", 60, 7, "gpmc_be1n", "gmii2_col", "gmpc_csn6","mmc2_dat3", "gpmc_dir", "pr1_mii1_rxlink", "mcasp0_aclkr", "gpio1_28"), + _PIN(0x87c, "GPMC_CSn0", 61, 7, "gpmc_csn0", NULL, NULL, NULL, NULL, NULL, NULL, "gpio1_29"), + _PIN(0x880, "GPMC_CSn1", 62, 7, "gpmc_csn1", "gpmc_clk", "mmc1_clk", "pr1_edio_data_in6", "pr1_edio_data_out6", "pr1_pru1_pru_r30_12", "pr1_pru1_pru_r31_12", "gpio1_30"), + _PIN(0x884, "GPMC_CSn2", 63, 7, "gpmc_csn2", "gpmc_be1n", "mmc1_cmd", "pr1_edio_data_in7", "pr1_edio_data_out7", "pr1_pru1_pru_r30_13", "pr1_pru1_pru_r31_13", "gpio1_31"), + _PIN(0x888, "GPMC_CSn3", 64, 7, "gpmc_csn3", "gpmc_a3", "rmii2_crs_dv", "mmc2_cmd", "pr1_mii0_crs", "pr1_mdio_data", "EMU4", "gpio2_0"), + _PIN(0x88c, "GPMC_CLK", 65, 7, "gpmc_clk", "lcd_memory_clk", "gpmc_wait1", "mmc2_clk", "pr1_mii1_crs", "pr1_mdio_mdclk", "mcasp0_fsr", "gpio2_1"), + _PIN(0x890, "GPMC_ADVn_ALE", 66, 7, "gpmc_advn_ale", NULL, "timer4", NULL, NULL, NULL, NULL, "gpio2_2"), + _PIN(0x894, "GPMC_OEn_REn", 67, 7, "gpmc_oen_ren", NULL, "timer7", NULL, NULL, NULL, NULL, "gpio2_3"), + _PIN(0x898, "GPMC_WEn", 68, 7, "gpmc_wen", NULL, "timer6", NULL, NULL, NULL, NULL, "gpio2_4"), + _PIN(0x89c, "GPMC_BEn0_CLE", 67, 7, "gpmc_ben0_cle", NULL, "timer5", NULL, NULL, NULL, NULL, "gpio2_5"), + _PIN(0x8a0, "LCD_DATA0", 68, 7, "lcd_data0", "gpmc_a0", "pr1_mii_mt0_clk", "ehrpwm2A", NULL, "pr1_pru1_pru_r30_0", "pr1_pru1_pru_r31_0", "gpio2_6"), + _PIN(0x8a4, "LCD_DATA1", 69, 7, "lcd_data1", "gpmc_a1", "pr1_mii0_txen", "ehrpwm2B", NULL, "pr1_pru1_pru_r30_1", "pr1_pru1_pru_r31_1", "gpio2_7"), + _PIN(0x8a8, "LCD_DATA2", 70, 7, "lcd_data2", "gpmc_a2", "pr1_mii0_txd3", "ehrpwm2_tripzone_input", NULL, "pr1_pru1_pru_r30_2", "pr1_pru1_pru_r31_2", "gpio2_8"), + _PIN(0x8ac, "LCD_DATA3", 71, 7, "lcd_data3", "gpmc_a3", "pr1_mii0_txd2", "ehrpwm0_synco", NULL, "pr1_pru1_pru_r30_3", "pr1_pru1_pru_r31_3", "gpio2_9"), + _PIN(0x8b0, "LCD_DATA4", 72, 7, "lcd_data4", "gpmc_a4", "pr1_mii0_txd1", "eQEP2A_in", NULL, "pr1_pru1_pru_r30_4", "pr1_pru1_pru_r31_4", "gpio2_10"), + _PIN(0x8b4, "LCD_DATA5", 73, 7, "lcd_data5", "gpmc_a5", "pr1_mii0_txd0", "eQEP2B_in", NULL, "pr1_pru1_pru_r30_5", "pr1_pru1_pru_r31_5", "gpio2_11"), + _PIN(0x8b8, "LCD_DATA6", 74, 7, "lcd_data6", "gpmc_a6", "pr1_edio_data_in6", "eQEP2_index", "pr1_edio_data_out6", "pr1_pru1_pru_r30_6", "pr1_pru1_pru_r31_6", "gpio2_12"), + _PIN(0x8bc, "LCD_DATA7", 75, 7, "lcd_data7", "gpmc_a7", "pr1_edio_data_in7", "eQEP2_strobe", "pr1_edio_data_out7", "pr1_pru1_pru_r30_7", "pr1_pru1_pru_r31_7", "gpio2_13"), + _PIN(0x8c0, "LCD_DATA8", 76, 7, "lcd_data8", "gpmc_a12", "ehrpwm1_tripzone_input", "mcasp0_aclkx", "uart5_txd", "pr1_mii0_rxd3", "uart2_ctsn", "gpio2_14"), + _PIN(0x8c4, "LCD_DATA9", 76, 7, "lcd_data9", "gpmc_a13", "ehrpwm0_synco", "mcasp0_fsx", "uart5_rxd", "pr1_mii0_rxd2", "uart2_rtsn", "gpio2_15"), + _PIN(0x8c8, "LCD_DATA10", 77, 7, "lcd_data10", "gpmc_a14", "ehrpwm1A", "mcasp0_axr0", NULL, "pr1_mii0_rxd1", "uart3_ctsn", "gpio2_16"), + _PIN(0x8cc, "LCD_DATA11", 78, 7, "lcd_data11", "gpmc_a15", "ehrpwm1B", "mcasp0_ahclkr", "mcasp0_axr2", "pr1_mii0_rxd0", "uart3_rtsn", "gpio2_17"), + _PIN(0x8d0, "LCD_DATA12", 8, 7, "lcd_data12", "gpmc_a16", "eQEP1A_in", "mcasp0_aclkr", "mcasp0_axr2", "pr1_mii0_rxlink", "uart4_ctsn", "gpio0_8"), + _PIN(0x8d4, "LCD_DATA13", 9, 7, "lcd_data13", "gpmc_a17", "eQEP1B_in", "mcasp0_fsr", "mcasp0_axr3", "pr1_mii0_rxer", "uart4_rtsn", "gpio0_9"), + _PIN(0x8d8, "LCD_DATA14", 10, 7, "lcd_data14", "gpmc_a18", "eQEP1_index", "mcasp0_axr1", "uart5_rxd", "pr1_mii_mr0_clk", "uart5_ctsn", "gpio0_10"), + _PIN(0x8dc, "LCD_DATA15", 11, 7, "lcd_data15", "gpmc_a19", "eQEP1_strobe", "mcasp0_ahclkx", "mcasp0_axr3", "pr1_mii0_rxdv", "uart5_rtsn", "gpio0_11"), + _PIN(0x8e0, "LCD_VSYNC", 86, 7, "lcd_vsync", "gpmc_a8", "gpmc_a1", "pr1_edio_data_in2", "pr1_edio_data_out2", "pr1_pru1_pru_r30_8", "pr1_pru1_pru_r31_8", "gpio2_22"), + _PIN(0x8e4, "LCD_HSYNC", 87, 7, "lcd_hsync", "gmpc_a9", "gpmc_a2", "pr1_edio_data_in3", "pr1_edio_data_out3", "pr1_pru1_pru_r30_9", "pr1_pru1_pru_r31_9", "gpio2_23"), + _PIN(0x8e8, "LCD_PCLK", 88, 7, "lcd_pclk", "gpmc_a10", "pr1_mii0_crs", "pr1_edio_data_in4", "pr1_edio_data_out4", "pr1_pru1_pru_r30_10", "pr1_pru1_pru_r31_10", "gpio2_24"), + _PIN(0x8ec, "LCD_AC_BIAS_EN", 89, 7, "lcd_ac_bias_en", "gpmc_a11", "pr1_mii1_crs", "pr1_edio_data_in5", "pr1_edio_data_out5", "pr1_pru1_pru_r30_11", "pr1_pru1_pru_r31_11", "gpio2_25"), + _PIN(0x8f0, "MMC0_DAT3", 90, 7, "mmc0_dat3", "gpmc_a20", "uart4_ctsn", "timer5", "uart1_dcdn", "pr1_pru0_pru_r30_8", "pr1_pru0_pru_r31_8", "gpio2_26"), + _PIN(0x8f4, "MMC0_DAT2", 91, 7, "mmc0_dat2", "gpmc_a21", "uart4_rtsn", "timer6", "uart1_dsrn", "pr1_pru0_pru_r30_9", "pr1_pru0_pru_r31_9", "gpio2_27"), + _PIN(0x8f8, "MMC0_DAT1", 92, 7, "mmc0_dat1", "gpmc_a22", "uart5_ctsn", "uart3_rxd", "uart1_dtrn", "pr1_pru0_pru_r30_10", "pr1_pru0_pru_r31_10", "gpio2_28"), + _PIN(0x8fc, "MMC0_DAT0", 93, 7, "mmc0_dat0", "gpmc_a23", "uart5_rtsn", "uart3_txd", "uart1_rin", "pr1_pru0_pru_r30_11", "pr1_pru0_pru_r31_11", "gpio2_29"), + _PIN(0x900, "MMC0_CLK", 94, 7, "mmc0_clk", "gpmc_a24", "uart3_ctsn", "uart2_rxd", "dcan1_tx", "pr1_pru0_pru_r30_12", "pr1_pru0_pru_r31_12", "gpio2_30"), + _PIN(0x904, "MMC0_CMD", 95, 7, "mmc0_cmd", "gpmc_a25", "uart3_rtsn", "uart2_txd", "dcan1_rx", "pr1_pru0_pru_r30_13", "pr1_pru0_pru_r31_13", "gpio2_31"), + _PIN(0x908, "MII1_COL", 96, 7, "gmii1_col", "rmii2_refclk", "spi1_sclk", "uart5_rxd", "mcasp1_axr2", "mmc2_dat3", "mcasp0_axr2", "gpio3_0"), + _PIN(0x90c, "MII1_CRS", 97, 7, "gmii1_crs", "rmii1_crs_dv", "spi1_d0", "I2C1_SDA", "mcasp1_aclkx", "uart5_ctsn", "uart2_rxd", "gpio3_1"), + _PIN(0x910, "MII1_RX_ER", 98, 7, "gmii1_rxerr", "rmii1_rxerr", "spi1_d1", "I2C1_SCL", "mcasp1_fsx", "uart5_rtsn", "uart2_txd", "gpio3_2"), + _PIN(0x914, "MII1_TX_EN", 99, 7, "gmii1_txen", "rmii1_txen", "rgmii1_tctl", "timer4", "mcasp1_axr0", "eQEP0_index", "mmc2_cmd", "gpio3_3"), + _PIN(0x918, "MII1_RX_DV", 100, 7, "gmii1_rxdv", "cd_memory_clk", "rgmii1_rctl", "uart5_txd", "mcasp1_aclkx", "mmc2_dat0", "mcasp0_aclkr", "gpio3_4"), + _PIN(0x91c, "MII1_TXD3", 16, 7, "gmii1_txd3", "dcan0_tx", "rgmii1_td3", "uart4_rxd", "mcasp1_fsx", "mmc2_dat1", "mcasp0_fsr", "gpio0_16"), + _PIN(0x920, "MII1_TXD2", 17, 7, "gmii1_txd2", "dcan0_rx", "rgmii1_td2", "uart4_txd", "mcasp1_axr0", "mmc2_dat2", "mcasp0_ahclkx", "gpio0_17"), + _PIN(0x924, "MII1_TXD1", 21, 7, "gmii1_txd1", "rmii1_txd1", "rgmii1_td1", "mcasp1_fsr", "mcasp1_axr1", "eQEP0A_in", "mmc1_cmd", "gpio0_21"), + _PIN(0x928, "MII1_TXD0", 28, 7, "gmii1_txd0", "rmii1_txd0", "rgmii1_td0", "mcasp1_axr2", "mcasp1_aclkr", "eQEP0B_in", "mmc1_clk", "gpio0_28"), + _PIN(0x92c, "MII1_TX_CLK", 105, 7, "gmii1_txclk", "uart2_rxd", "rgmii1_tclk", "mmc0_dat7", "mmc1_dat0", "uart1_dcdn", "mcasp0_aclkx", "gpio3_9"), + _PIN(0x930, "MII1_RX_CLK", 106, 7, "gmii1_rxclk", "uart2_txd", "rgmii1_rclk", "mmc0_dat6", "mmc1_dat1", "uart1_dsrn", "mcasp0_fsx", "gpio3_10"), + _PIN(0x934, "MII1_RXD3", 82, 7, "gmii1_rxd3", "uart3_rxd", "rgmii1_rd3", "mmc0_dat5", "mmc1_dat2", "uart1_dtrn", "mcasp0_axr0", "gpio2_18"), + _PIN(0x938, "MII1_RXD2", 83, 7, "gmii1_rxd2", "uart3_txd", "rgmii1_rd2", "mmc0_dat4", "mmc1_dat3", "uart1_rin", "mcasp0_axr1", "gpio2_19"), + _PIN(0x93c, "MII1_RXD1", 84, 7, "gmii1_rxd1", "rmii1_rxd1", "rgmii1_rd1", "mcasp1_axr3", "mcasp1_fsr", "eQEP0_strobe", "mmc2_clk", "gpio2_20"), + _PIN(0x940, "MII1_RXD0", 85, 7, "gmii1_rxd0", "rmii1_rxd0", "rgmii1_rd0", "mcasp1_ahclkx", "mcasp1_ahclkr", "mcasp1_aclkr", "mcasp0_axr3", "gpio2_21"), + _PIN(0x944, "RMII1_REF_CLK", 29, 7, "rmii1_refclk", "xdma_event_intr2", "spi1_cs0", "uart5_txd", "mcasp1_axr3", "mmc0_pow", "mcasp1_ahclkx", "gpio0_29"), + _PIN(0x948, "MDIO", 0, 7, "mdio_data", "timer6", "uart5_rxd", "uart3_ctsn", "mmc0_sdcd","mmc1_cmd", "mmc2_cmd","gpio0_0"), + _PIN(0x94c, "MDC", 1, 7, "mdio_clk", "timer5", "uart5_txd", "uart3_rtsn", "mmc0_sdwp", "mmc1_clk", "mmc2_clk", "gpio0_1"), + _PIN(0x950, "SPI0_SCLK", 2, 7, "spi0_sclk", "uart2_rxd", "I2C2_SDA", "ehrpwm0A", "pr1_uart0_cts_n", "pr1_edio_sof", "EMU2", "gpio0_2"), + _PIN(0x954, "SPI0_D0", 3, 7, "spi0_d0", "uart2_txd", "i2C2_SCL", "ehrpwm0B", "pr1_uart0_rts_n", "pr1_edio_latch_in", "EMU3", "gpio0_3"), + _PIN(0x958, "SPIO_D1", 4, 7, "spi0_d1", "mmc1_sdwp", "I2C1_SDA", "ehrpwm0_tripzone_input", "pr1_uart0_rxd", "pr1_edio_data_in0", "pr1_edio_data_out0", "gpio0_4"), + _PIN(0x95c, "SPI0_CS0", 5, 7, "spi0_cs0", "mmc2_sdwp", "I2C1_SCL", "ehrpwm0_synci", "pr1_uart0_txd", "pr1_edio_data_in1", "pr1_edio_data_out1", "gpio0_5"), + _PIN(0x960, "SPI0_CS1", 6, 7, "spi0_cs1", "uart3_rxd", "eCAP1_in_PWM1_out", "mcc0_pow", "xdm_event_intr2", "mmc0_sdcd", "EMU4", "gpio0_6"), + _PIN(0x964, "ECAP0_IN_PWM0_OUT",7, 7, "eCAP0_in_PWM0_out", "uart3_txd", "spi1_cs1", "pr1_ecap0_ecap_capin_apwm_o", "spi1_sclk", "mmc0_sdwp", "xdma_event_intr2", "gpio0_7"), + _PIN(0x968, "UART0_CTSn", 40, 7, "uart0_ctsn", "uart4_rxd", "dcan1_tx", "I2C1_SDA", "spi1_d0", "timer7", "pr1_edc_sync0_out", "gpio1_8"), + _PIN(0x96c, "UART0_RTSn", 41, 7, "uart0_rtsn", "uart4_txd", "dcan1_rx", "I2C1_SCL", "spi1_d1", "spi1_cs0", "pr1_edc_sync1_out", "gpio1_9"), + _PIN(0x970, "UART0_rxd", 42, 7, "uart0_rxd", "spi1_cs0", "dcan0_tx", "I2C2_SDA", "eCAP2_in_PWM2_out", "pr1_pru1_pru_r30_14", "pr1_pru1_pru_r31_14", "gpio1_10"), + _PIN(0x974, "UART0_txd", 43, 7, "uart0_txd", "spi1_cs1", "dcan0_rx", "I2C2_SCL", "eCAP1_in_PWM1_out", "pr1_pru1_pru_r30_15", "pr1_pru1_pru_r31_15", "gpio1_11"), + _PIN(0x978, "UART1_CTSn", 12, 7, "uart1_ctsn", "timer6_mux1", "dcan0_tx", "I2C2_SDA", "spi1_cs0", "pr1_uart0_cts_n", "pr1_edc_latch0_in", "gpio0_12"), + _PIN(0x97c, "UART1_RTSn", 13, 7, "uart1_rtsn", "timer5_mux1", "dcan0_rx", "I2C2_SCL", "spi1_cs1", "pr1_uart0_rts_n ", "pr1_edc_latch1_in", "gpio0_13"), + _PIN(0x980, "UART1_RXD", 14, 7, "uart1_rxd", "mmc1_sdwp", "dcan1_tx", "I2C1_SDA", NULL, "pr1_uart0_rxd", "pr1_pru1_pru_r31_16", "gpio0_14"), + _PIN(0x984, "UART1_TXD", 15, 7, "uart1_txd", "mmc2_sdwp", "dcan1_rx", "I2C1_SCL", NULL, "pr1_uart0_txd", "pr1_pru0_pru_r31_16", "gpio0_15"), + _PIN(0x988, "I2C0_SDA", 101, 7, "I2C0_SDA", "timer4", "uart2_ctsn", "eCAP2_in_PWM2_out", NULL, NULL, NULL, "gpio3_5"), + _PIN(0x98c, "I2C0_SCL", 102, 7, "I2C0_SCL", "timer7", "uart2_rtsn", "eCAP1_in_PWM1_out", NULL, NULL, NULL, "gpio3_6"), + _PIN(0x990, "MCASP0_ACLKX", 110, 7, "mcasp0_aclkx", "ehrpwm0A", NULL, "spi1_sclk", "mmc0_sdcd", "pr1_pru0_pru_r30_0", "pr1_pru0_pru_r31_0", "gpio3_14"), + _PIN(0x994, "MCASP0_FSX", 111, 7, "mcasp0_fsx", "ehrpwm0B", NULL, "spi1_d0", "mmc1_sdcd", "pr1_pru0_pru_r30_1", "pr1_pru0_pru_r31_1", "gpio3_15"), + _PIN(0x998, "MCASP0_AXR0", 112, 7, "mcasp0_axr0", "ehrpwm0_tripzone_input", NULL, "spi1_d1", "mmc2_sdcd", "pr1_pru0_pru_r30_2", "pr1_pru0_pru_r31_2", "gpio3_16"), + _PIN(0x99c, "MCASP0_AHCLKR", 113, 7, "mcasp0_ahclkr", "ehrpwm0_synci", "mcasp0_axr2", "spi1_cs0", "eCAP2_in_PWM2_out", "pr1_pru0_pru_r30_3", "pr1_pru0_pru_r31_3", "gpio3_17"), + _PIN(0x9a0, "MCASP0_ACLKR", 114, 7, "mcasp0_aclkr", "eQEP0A_in", "mcasp0_axr2", "mcasp1_aclkx", "mmc0_sdwp", "pr1_pru0_pru_r30_4", "pr1_pru0_pru_r31_4", "gpio3_18"), + _PIN(0x9a4, "MCASP0_FSR", 115, 7, "mcasp0_fsr", "eQEP0B_in", "mcasp0_axr3", "mcasp1_fsx", "EMU2", "pr1_pru0_pru_r30_5", "pr1_pru0_pru_r31_5", "gpio3_19"), + _PIN(0x9a8, "MCASP0_AXR1", 116, 7, "mcasp0_axr1", "eQEP0_index", NULL, "mcasp1_axr0", "EMU3", "pr1_pru0_pru_r30_6", "pr1_pru0_pru_r31_6", "gpio3_20"), + _PIN(0x9ac, "MCASP0_AHCLKX", 117, 7, "mcasp0_ahclkx", "eQEP0_strobe", "mcasp0_axr3", "mcasp1_axr1", "EMU4", "pr1_pru0_pru_r30_7", "pr1_pru0_pru_r31_7", "gpio3_21"), + _PIN(0x9b0, "XDMA_EVENT_INTR0", 19, 7, "xdma_event_intr0", NULL, "timer4", "clkout1", "spi1_cs1", "pr1_pru1_pru_r31_16", "EMU2", "gpio0_19"), + _PIN(0x9b4, "XDMA_EVENT_INTR1", 20, 7, "xdma_event_intr1", NULL, "tclkin", "clkout2", "timer7", "pr1_pru0_pru_r31_16", "EMU3", "gpio0_20"), +#if 0 + _PIN(0x9b8, "nresetin_out", 0, 0, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL), + _PIN(0x9bc, "porz", 0, 0, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL), + _PIN(0x9c0, "nnmi", 0, 0, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL), + _PIN(0x9c4, "osc0_in", 0, 0, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL), + _PIN(0x9c8, "osc0_out", 0, 0, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL), + _PIN(0x9cc, "osc0_vss", 0, 0, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL), + _PIN(0x9d0, "tms", 0, 0, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL), + _PIN(0x9d4, "tdi", 0, 0, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL), + _PIN(0x9d8, "tdo", 0, 0, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL), + _PIN(0x9dc, "tck", 0, 0, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL), + _PIN(0x9e0, "ntrst", 0, 0, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL), +#endif + _PIN(0x9e4, "EMU0", 103, 7, "EMU0", NULL, NULL, NULL, NULL, NULL, NULL, "gpio3_7"), + _PIN(0x9e8, "EMU1", 104, 0, "EMU1", NULL, NULL, NULL, NULL, NULL, NULL, "gpio3_8"), +#if 0 + _PIN(0x9ec, "osc1_in", 0, 0, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL), + _PIN(0x9f0, "osc1_out", 0, 0, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL), + _PIN(0x9f4, "osc1_vss", 0, 0, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL), + _PIN(0x9f8, "rtc_porz", 0, 0, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL), + _PIN(0x9fc, "pmic_power_en", 0, 0, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL), + _PIN(0xa00, "ext_wakeup", 0, 0, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL), + _PIN(0xa04, "enz_kaldo_1p8v", 0, 0, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL), +#endif + _PIN(0xa08, "USB0_DM", 0, 0, "USB0_DM", NULL, NULL, NULL, NULL, NULL, NULL, NULL), + _PIN(0xa0c, "USB0_DP", 0, 0, "USB0_DP", NULL, NULL, NULL, NULL, NULL, NULL, NULL), + _PIN(0xa10, "USB0_CE", 0, 0, "USB0_CE", NULL, NULL, NULL, NULL, NULL, NULL, NULL), + _PIN(0xa14, "USB0_ID", 0, 0, "USB0_ID", NULL, NULL, NULL, NULL, NULL, NULL, NULL), + _PIN(0xa18, "USB0_VBUS", 0, 0, "USB0_VBUS", NULL, NULL, NULL, NULL, NULL, NULL, NULL), + _PIN(0xa1c, "USB0_DRVVBUS", 18, 7, "USB0_DRVVBUS", NULL, NULL, NULL, NULL, NULL, NULL, "gpio0_18"), + _PIN(0xa20, "USB1_DM", 0, 0, "USB1_DM", NULL, NULL, NULL, NULL, NULL, NULL, NULL), + _PIN(0xa24, "USB1_DP", 0, 0, "USB1_DP", NULL, NULL, NULL, NULL, NULL, NULL, NULL), + _PIN(0xa28, "USB1_CE", 0, 0, "USB1_CE", NULL, NULL, NULL, NULL, NULL, NULL, NULL), + _PIN(0xa2c, "USB1_ID", 0, 0, "USB1_ID", NULL, NULL, NULL, NULL, NULL, NULL, NULL), + _PIN(0xa30, "USB1_VBUS", 0, 0, "USB1_VBUS", NULL, NULL, NULL, NULL, NULL, NULL, NULL), + _PIN(0xa34, "USB1_DRVVBUS", 109, 7, "USB1_DRVVBUS", NULL, NULL, NULL, NULL, NULL, NULL, "gpio3_13"), +#if 0 + _PIN(0xa38, "ddr_resetn", 0, 0, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL), + _PIN(0xa3c, "ddr_csn0", 0, 0, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL), + _PIN(0xa40, "ddr_cke", 0, 0, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL), + _PIN(0xa44, "ddr_ck", 0, 0, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL), + _PIN(0xa48, "ddr_nck", 0, 0, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL), + _PIN(0xa4c, "ddr_casn", 0, 0, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL), + _PIN(0xa50, "ddr_rasn", 0, 0, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL), + _PIN(0xa54, "ddr_wen", 0, 0, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL), + _PIN(0xa58, "ddr_ba0", 0, 0, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL), + _PIN(0xa5c, "ddr_ba1", 0, 0, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL), + _PIN(0xa60, "ddr_ba2", 0, 0, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL), + _PIN(0xa64, "ddr_a0", 0, 0, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL), + _PIN(0xa68, "ddr_a1", 0, 0, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL), + _PIN(0xa6c, "ddr_a2", 0, 0, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL), + _PIN(0xa70, "ddr_a3", 0, 0, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL), + _PIN(0xa74, "ddr_a4", 0, 0, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL), + _PIN(0xa78, "ddr_a5", 0, 0, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL), + _PIN(0xa7c, "ddr_a6", 0, 0, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL), + _PIN(0xa80, "ddr_a7", 0, 0, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL), + _PIN(0xa84, "ddr_a8", 0, 0, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL), + _PIN(0xa88, "ddr_a9", 0, 0, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL), + _PIN(0xa8c, "ddr_a10", 0, 0, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL), + _PIN(0xa90, "ddr_a11", 0, 0, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL), + _PIN(0xa94, "ddr_a12", 0, 0, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL), + _PIN(0xa98, "ddr_a13", 0, 0, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL), + _PIN(0xa9c, "ddr_a14", 0, 0, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL), + _PIN(0xaa0, "ddr_a15", 0, 0, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL), + _PIN(0xaa4, "ddr_odt", 0, 0, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL), + _PIN(0xaa8, "ddr_d0", 0, 0, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL), + _PIN(0xaac, "ddr_d1", 0, 0, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL), + _PIN(0xab0, "ddr_d2", 0, 0, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL), + _PIN(0xab4, "ddr_d3", 0, 0, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL), + _PIN(0xab8, "ddr_d4", 0, 0, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL), + _PIN(0xabc, "ddr_d5", 0, 0, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL), + _PIN(0xac0, "ddr_d6", 0, 0, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL), + _PIN(0xac4, "ddr_d7", 0, 0, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL), + _PIN(0xac8, "ddr_d8", 0, 0, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL), + _PIN(0xacc, "ddr_d9", 0, 0, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL), + _PIN(0xad0, "ddr_d10", 0, 0, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL), + _PIN(0xad4, "ddr_d11", 0, 0, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL), + _PIN(0xad8, "ddr_d12", 0, 0, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL), + _PIN(0xadc, "ddr_d13", 0, 0, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL), + _PIN(0xae0, "ddr_d14", 0, 0, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL), + _PIN(0xae4, "ddr_d15", 0, 0, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL), + _PIN(0xae8, "ddr_dqm0", 0, 0, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL), + _PIN(0xaec, "ddr_dqm1", 0, 0, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL), + _PIN(0xaf0, "ddr_dqs0", 0, 0, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL), + _PIN(0xaf4, "ddr_dqsn0", 0, 0, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL), + _PIN(0xaf8, "ddr_dqs1", 0, 0, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL), + _PIN(0xafc, "ddr_dqsn1", 0, 0, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL), + _PIN(0xb00, "ddr_vref", 0, 0, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL), + _PIN(0xb04, "ddr_vtp", 0, 0, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL), + _PIN(0xb08, "ddr_strben0", 0, 0, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL), + _PIN(0xb0c, "ddr_strben1", 0, 0, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL), + _PIN(0xb2c, "ain0", 0, 0, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL), + _PIN(0xb28, "ain1", 0, 0, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL), + _PIN(0xb24, "ain2", 0, 0, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL), + _PIN(0xb20, "ain3", 0, 0, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL), + _PIN(0xb1c, "ain4", 0, 0, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL), + _PIN(0xb18, "ain5", 0, 0, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL), + _PIN(0xb14, "ain6", 0, 0, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL), + _PIN(0xb10, "ain7", 0, 0, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL), + _PIN(0xb30, "vrefp", 0, 0, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL), + _PIN(0xb34, "vrefn", 0, 0, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL), + _PIN(0xb38, "avdd", 0, 0, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL), + _PIN(0xb3c, "avss", 0, 0, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL), + _PIN(0xb40, "iforce", 0, 0, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL), + _PIN(0xb44, "vsense", 0, 0, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL), + _PIN(0xb48, "testout", 0, 0, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL), +#endif + { .ballname = NULL }, +}; + +const struct sitara_cm_device sitara_cm_dev = { + .padconf_muxmode_mask = 0x7, + .padconf_sate_mask = 0x78, + .padstate = (struct sitara_cm_padstate *) &ti_padstate_devmap, + .padconf = (struct sitara_cm_padconf *) &ti_padconf_devmap, +}; + +int +sitara_cm_padconf_set_gpioflags(uint32_t gpio, uint32_t flags) +{ + unsigned int state = 0; + if (flags & GPIO_PIN_OUTPUT) { + if (flags & GPIO_PIN_PULLUP) + state = PADCONF_OUTPUT_PULLUP; + else + state = PADCONF_OUTPUT; + } else if (flags & GPIO_PIN_INPUT) { + if (flags & GPIO_PIN_PULLUP) + state = PADCONF_INPUT_PULLUP; + else if (flags & GPIO_PIN_PULLDOWN) + state = PADCONF_INPUT_PULLDOWN; + else + state = PADCONF_INPUT; + } + return sitara_cm_padconf_set_gpiomode(gpio, state); +} + +void +sitara_cm_padconf_get_gpioflags(uint32_t gpio, uint32_t *flags) +{ + unsigned int state; + if (sitara_cm_padconf_get_gpiomode(gpio, &state) != 0) + *flags = 0; + else { + switch (state) { + case PADCONF_OUTPUT: + *flags = GPIO_PIN_OUTPUT; + break; + case PADCONF_OUTPUT_PULLUP: + *flags = GPIO_PIN_OUTPUT | GPIO_PIN_PULLUP; + break; + case PADCONF_INPUT: + *flags = GPIO_PIN_INPUT; + break; + case PADCONF_INPUT_PULLUP: + *flags = GPIO_PIN_INPUT | GPIO_PIN_PULLUP; + break; + case PADCONF_INPUT_PULLDOWN: + *flags = GPIO_PIN_INPUT | GPIO_PIN_PULLDOWN; + break; + default: + *flags = 0; + break; + } + } +} diff --git a/sys/arch/arm/omap/sitara_cm.c b/sys/arch/arm/omap/sitara_cm.c new file mode 100644 index 000000000000..73339866f2a2 --- /dev/null +++ b/sys/arch/arm/omap/sitara_cm.c @@ -0,0 +1,415 @@ +/* $NetBSD: sitara_cm.c,v 1.1 2013/04/17 14:31:02 bouyer Exp $ */ +/* + * Copyright (c) 2010 + * Ben Gray . + * 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. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by Ben Gray. + * 4. The name of the company nor the name of the author may be used to + * endorse or promote products derived from this software without specific + * prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY BEN GRAY ``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 BEN GRAY 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. + */ + +/* + * SCM - System Control Module + * + * Hopefully in the end this module will contain a bunch of utility functions + * for configuring and querying the general system control registers, but for + * now it only does pin(pad) multiplexing. + * + * This is different from the GPIO module in that it is used to configure the + * pins between modules not just GPIO input/output. + * + * This file contains the generic top level driver, however it relies on chip + * specific settings and therefore expects an array of sitara_cm_padconf structs + * call ti_padconf_devmap to be located somewhere in the kernel. + * + */ +#include +__KERNEL_RCSID(0, "$NetBSD: sitara_cm.c,v 1.1 2013/04/17 14:31:02 bouyer Exp $"); + +#include "opt_omap.h" + +#include +#include +#include +#include +#include +#include +#include + +#include +#include +#include + +struct sitara_cm_softc { + device_t sc_dev; + bus_space_tag_t sc_iot; + bus_space_handle_t sc_ioh; +}; + + +static struct sitara_cm_softc *sitara_cm_sc = NULL; + +static int sitara_cm_match(device_t, cfdata_t, void *); +static void sitara_cm_attach(device_t, device_t, void *); + +#define sitara_cm_read_2(sc, reg) \ + bus_space_read_2((sc)->sc_iot, (sc)->sc_ioh, (reg)) +#define sitara_cm_write_2(sc, reg, val) \ + bus_space_write_2((sc)->sc_iot, (sc)->sc_ioh, (reg), (val)) +#define sitara_cm_read_4(sc, reg) \ + bus_space_read_4((sc)->sc_iot, (sc)->sc_ioh, (reg)) +#define sitara_cm_write_4(sc, reg, val) \ + bus_space_write_4((sc)->sc_iot, (sc)->sc_ioh, (reg), (val)) + + +/** + * ti_padconf_devmap - Array of pins, should be defined one per SoC + * + * This array is typically defined in one of the targeted *_scm_pinumx.c + * files and is specific to the given SoC platform. Each entry in the array + * corresponds to an individual pin. + */ +extern const struct sitara_cm_device sitara_cm_dev; + + +/** + * sitara_cm_padconf_from_name - searches the list of pads and returns entry + * with matching ball name. + * @ballname: the name of the ball + * + * RETURNS: + * A pointer to the matching padconf or NULL if the ball wasn't found. + */ +static const struct sitara_cm_padconf* +sitara_cm_padconf_from_name(const char *ballname) +{ + const struct sitara_cm_padconf *padconf; + + padconf = sitara_cm_dev.padconf; + while (padconf->ballname != NULL) { + if (strcmp(ballname, padconf->ballname) == 0) + return(padconf); + padconf++; + } + + return (NULL); +} + +/** + * sitara_cm_padconf_set_internal - sets the muxmode and state for a pad/pin + * @padconf: pointer to the pad structure + * @muxmode: the name of the mode to use for the pin, i.e. "uart1_rx" + * @state: the state to put the pad/pin in, i.e. PADCONF_PIN_??? + * + * + * LOCKING: + * Internally locks it's own context. + * + * RETURNS: + * 0 on success. + * EINVAL if pin requested is outside valid range or already in use. + */ +static int +sitara_cm_padconf_set_internal(struct sitara_cm_softc *sc, + const struct sitara_cm_padconf *padconf, + const char *muxmode, unsigned int state) +{ + unsigned int mode; + uint16_t reg_val; + + /* populate the new value for the PADCONF register */ + reg_val = (uint16_t)(state & sitara_cm_dev.padconf_sate_mask); + + /* find the new mode requested */ + for (mode = 0; mode < 8; mode++) { + if ((padconf->muxmodes[mode] != NULL) && + (strcmp(padconf->muxmodes[mode], muxmode) == 0)) { + break; + } + } + + /* couldn't find the mux mode */ + if (mode >= 8) { + aprint_error_dev(sc->sc_dev, "Invalid mode \"%s\"\n", muxmode); + return (EINVAL); + } + + /* set the mux mode */ + reg_val |= (uint16_t)(mode & sitara_cm_dev.padconf_muxmode_mask); + + aprint_debug_dev(sc->sc_dev, + "setting internal %x for %s\n", reg_val, muxmode); + /* write the register value (16-bit writes) */ + sitara_cm_write_2(sc, padconf->reg_off, reg_val); + + return (0); +} + +/** + * sitara_cm_padconf_set - sets the muxmode and state for a pad/pin + * @padname: the name of the pad, i.e. "c12" + * @muxmode: the name of the mode to use for the pin, i.e. "uart1_rx" + * @state: the state to put the pad/pin in, i.e. PADCONF_PIN_??? + * + * + * LOCKING: + * Internally locks it's own context. + * + * RETURNS: + * 0 on success. + * EINVAL if pin requested is outside valid range or already in use. + */ +int +sitara_cm_padconf_set(const char *padname, const char *muxmode, unsigned int state) +{ + const struct sitara_cm_padconf *padconf; + + if (!sitara_cm_sc) + return (ENXIO); + + /* find the pin in the devmap */ + padconf = sitara_cm_padconf_from_name(padname); + if (padconf == NULL) + return (EINVAL); + + return ( + sitara_cm_padconf_set_internal(sitara_cm_sc, padconf, muxmode, state) + ); +} + +/** + * sitara_cm_padconf_get - gets the muxmode and state for a pad/pin + * @padname: the name of the pad, i.e. "c12" + * @muxmode: upon return will contain the name of the muxmode of the pin + * @state: upon return will contain the state of the pad/pin + * + * + * LOCKING: + * Internally locks it's own context. + * + * RETURNS: + * 0 on success. + * EINVAL if pin requested is outside valid range or already in use. + */ +int +sitara_cm_padconf_get(const char *padname, const char **muxmode, + unsigned int *state) +{ + const struct sitara_cm_padconf *padconf; + uint16_t reg_val; + + if (!sitara_cm_sc) + return (ENXIO); + + /* find the pin in the devmap */ + padconf = sitara_cm_padconf_from_name(padname); + if (padconf == NULL) + return (EINVAL); + + /* read the register value (16-bit reads) */ + reg_val = sitara_cm_read_2(sitara_cm_sc, padconf->reg_off); + + /* save the state */ + if (state) + *state = (reg_val & sitara_cm_dev.padconf_sate_mask); + + /* save the mode */ + if (muxmode) { + *muxmode = padconf->muxmodes[ + (reg_val & sitara_cm_dev.padconf_muxmode_mask) + ]; + } + + return (0); +} + +/** + * sitara_cm_padconf_set_gpiomode - converts a pad to GPIO mode. + * @gpio: the GPIO pin number (0-195) + * @state: the state to put the pad/pin in, i.e. PADCONF_PIN_??? + * + * + * + * LOCKING: + * Internally locks it's own context. + * + * RETURNS: + * 0 on success. + * EINVAL if pin requested is outside valid range or already in use. + */ +int +sitara_cm_padconf_set_gpiomode(uint32_t gpio, unsigned int state) +{ + const struct sitara_cm_padconf *padconf; + uint16_t reg_val; + + if (!sitara_cm_sc) + return (ENXIO); + + /* find the gpio pin in the padconf array */ + padconf = sitara_cm_dev.padconf; + while (padconf->ballname != NULL) { + if (padconf->gpio_pin == gpio) + break; + padconf++; + } + if (padconf->ballname == NULL) + return (EINVAL); + + /* populate the new value for the PADCONF register */ + reg_val = (uint16_t)(state & sitara_cm_dev.padconf_sate_mask); + + /* set the mux mode */ + reg_val |= + (uint16_t)(padconf->gpio_mode & sitara_cm_dev.padconf_muxmode_mask); + + /* write the register value (16-bit writes) */ + sitara_cm_write_2(sitara_cm_sc, padconf->reg_off, reg_val); + + return (0); +} + +/** + * sitara_cm_padconf_get_gpiomode - gets the current GPIO mode of the pin + * @gpio: the GPIO pin number (0-195) + * @state: upon return will contain the state + * + * + * + * LOCKING: + * Internally locks it's own context. + * + * RETURNS: + * 0 on success. + * EINVAL if pin requested is outside valid range or not configured as GPIO. + */ +int +sitara_cm_padconf_get_gpiomode(uint32_t gpio, unsigned int *state) +{ + const struct sitara_cm_padconf *padconf; + uint16_t reg_val; + + if (!sitara_cm_sc) + return (ENXIO); + + /* find the gpio pin in the padconf array */ + padconf = sitara_cm_dev.padconf; + while (padconf->ballname != NULL) { + if (padconf->gpio_pin == gpio) + break; + padconf++; + } + if (padconf->ballname == NULL) + return (EINVAL); + + /* read the current register settings */ + reg_val = sitara_cm_read_2(sitara_cm_sc, padconf->reg_off); + + /* + * check to make sure the pins is configured as GPIO in the + * first state + */ + if ((reg_val & sitara_cm_dev.padconf_muxmode_mask) != + padconf->gpio_mode) + return (EINVAL); + + /* + * read and store the reset of the state, + * i.e. pull-up, pull-down, etc + */ + if (state) + *state = (reg_val & sitara_cm_dev.padconf_sate_mask); + + return (0); +} + + +int +sitara_cm_reg_read_4(uint32_t reg, uint32_t *val) +{ + if (!sitara_cm_sc) + return (ENXIO); + + *val = sitara_cm_read_4(sitara_cm_sc, reg); + return (0); +} + +int +sitara_cm_reg_write_4(uint32_t reg, uint32_t val) +{ + if (!sitara_cm_sc) + return (ENXIO); + + sitara_cm_write_4(sitara_cm_sc, reg, val); + return (0); +} +/* + * Device part of OMAP SCM driver + */ + +CFATTACH_DECL_NEW(sitaracm, sizeof(struct sitara_cm_softc), + sitara_cm_match, sitara_cm_attach, NULL, NULL); + +static int +sitara_cm_match(device_t parent, cfdata_t match, void *opaque) +{ + struct obio_attach_args *obio = opaque; + +#ifdef TI_AM335X + if (obio->obio_addr == 0x44e10000) + return 1; +#endif + return 0; +} + +static void +sitara_cm_attach(device_t parent, device_t self, void *opaque) +{ + struct sitara_cm_softc *sc = device_private(self); + struct obio_attach_args *obio = opaque; + uint32_t rev; + + aprint_naive("\n"); + + if (sitara_cm_sc) + panic("sitara_cm_attach: already attached"); + + sc->sc_dev = self; + sc->sc_iot = obio->obio_iot; + + if (bus_space_map(obio->obio_iot, obio->obio_addr, obio->obio_size, + 0, &sc->sc_ioh) != 0) { + aprint_error(": couldn't map address space\n"); + return ; + } + + sitara_cm_sc = sc; + + if (sitara_cm_reg_read_4(OMAP2SCM_REVISION, &rev) != 0) + panic("sitara_cm_attach: read revision"); + aprint_normal(": control module, rev %d.%d\n", + SCM_REVISION_MAJOR(rev), SCM_REVISION_MINOR(rev)); +} diff --git a/sys/arch/arm/omap/sitara_cm.h b/sys/arch/arm/omap/sitara_cm.h new file mode 100644 index 000000000000..028eb10b91ee --- /dev/null +++ b/sys/arch/arm/omap/sitara_cm.h @@ -0,0 +1,77 @@ +/* $NetBSD: sitara_cm.h,v 1.1 2013/04/17 14:31:02 bouyer Exp $ */ +/* + * Copyright (c) 2010 + * Ben Gray . + * 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. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by Ben Gray. + * 4. The name of the company nor the name of the author may be used to + * endorse or promote products derived from this software without specific + * prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY BEN GRAY ``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 BEN GRAY 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. + * + */ + + +/** + * Functions to configure the PIN multiplexing on the chip. + * + * This is different from the GPIO module in that it is used to configure the + * pins between modules not just GPIO input output. + * + */ +#ifndef _OMAP_SCM_H_ +#define _OMAP_SCM_H_ + +struct sitara_cm_padconf { + uint16_t reg_off; + uint16_t gpio_pin; + uint16_t gpio_mode; + const char *ballname; + const char *muxmodes[8]; +}; + +struct sitara_cm_padstate { + const char *state; + uint16_t reg; +}; + +struct sitara_cm_device { + uint16_t padconf_muxmode_mask; + uint16_t padconf_sate_mask; + struct sitara_cm_padstate *padstate; + struct sitara_cm_padconf *padconf; +}; + +int sitara_cm_padconf_set(const char *padname, const char *muxmode, + unsigned int state); +int sitara_cm_padconf_get(const char *padname, const char **muxmode, + unsigned int *state); +int sitara_cm_padconf_set_gpiomode(uint32_t gpio, unsigned int state); +int sitara_cm_padconf_get_gpiomode(uint32_t gpio, unsigned int *state); +int sitara_cm_padconf_set_gpioflags(uint32_t gpio, uint32_t flags); +void sitara_cm_padconf_get_gpioflags(uint32_t gpio, uint32_t *flags); +int sitara_cm_reg_read_4(uint32_t reg, uint32_t *val); +int sitara_cm_reg_write_4(uint32_t reg, uint32_t val); + +#endif /* _OMAP_SCM_H_ */