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u-boot/board/nm/nmhw24/mux.c

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/*
* mux.c
*
* Copyright (C) 2018-2019 NetModule AG - http://www.netmodule.com/
* Copyright (C) 2011 Texas Instruments Incorporated - http://www.ti.com/
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation version 2.
*
* This program is distributed "as is" WITHOUT ANY WARRANTY of any
* kind, whether express or implied; without even the implied warranty
* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#include <common.h>
#include <asm/arch/sys_proto.h>
#include <asm/arch/hardware.h>
#include <asm/arch/mux.h>
#include <asm/io.h>
#include "board.h"
static struct module_pin_mux gpio_pin_mux[] = {
/*
* CPU GPIOs
*
* (A17) GPIO0_2: RST_GNSS~
* (A16) GPIO0_5: EXTINT_GNSS
* (C18) GPIO0_7: PWM / SHIELD LATCH
* (J18) GPIO0_16: RST_PHY~
* (U12) GPIO0_27: RST_SHIELD~
*
* (R14) GPIO1_20: BT_EN
* (V15) GPIO1_21: GSM_PWR_EN
* (U16) GPIO1_25: RST_GSM
* (T16) GPIO1_26: WLAN_EN
* (V17) GPIO1_27: WLAN_IRQ
*
* (C12) GPIO3_17: SIM_SEL
*/
/* Bank 0 */
{OFFSET(spi0_sclk), (MODE(7) | PULLUDDIS)}, /* (A17) gpio0[2] */ /* RST_GNSS */
{OFFSET(spi0_cs0), (MODE(7) | PULLUDEN | PULLDOWN_EN)}, /* (A16) gpio0[5] */ /* EXTINT_GNSS */
{OFFSET(ecap0_in_pwm0_out), (MODE(7) | PULLUDEN | PULLUP_EN)}, /* (C18) gpio0[7] */ /* IO_SHIELD */
{OFFSET(mii1_txd3), (MODE(7) | PULLUDDIS)}, /* (J18) gpio0[16] */ /* RST_PHY~ */
{OFFSET(gpmc_ad11), (MODE(7) | PULLUDDIS)}, /* (U12) gpio0[27] */ /* RST_SHIELD~ */
/* Bank 1 */
{OFFSET(gpmc_a4), (MODE(7) | PULLUDDIS)}, /* (R14) gpio1[20] */ /* BT_EN */
{OFFSET(gpmc_a5), (MODE(7) | PULLUDDIS)}, /* (V15) gpio1[21] */ /* GSM_PWR_EN */
{OFFSET(gpmc_a9), (MODE(7) | PULLUDDIS)}, /* (U16) gpio1[25] */ /* RST_GSM */
{OFFSET(gpmc_a10), (MODE(7) | PULLUDDIS)}, /* (T16) gpio1[26] */ /* WLAN_EN */
{OFFSET(gpmc_a11), (MODE(7) | PULLUDDIS | RXACTIVE)}, /* (V17) gpio1[27] */ /* WLAN_IRQ */
/* TODO: What about all the unused GPMC pins ? */
/* Bank 2 */
#if 0
/* TODO: What is this meant for? */
{OFFSET(lcd_data3), (MODE(7) | PULLUDEN | PULLUP_EN)}, /* (R4) gpio2[9] */ /* SYSBOOT_3 */
{OFFSET(lcd_data4), (MODE(7) | PULLUDEN | PULLUP_EN)}, /* (T1) gpio2[10] */ /* SYSBOOT_4 */
/* TODO: Check other unued pins from sysboot block */
/* Ensure PU/PD does not work against external signal */
/*
* SYSBOOT 0,1,5,12,13 = Low
* SYSBOOT 2 = High
*/
#endif
/* Bank 3 */
{OFFSET(mcasp0_ahclkr), (MODE(7) | PULLUDEN | PULLDOWN_EN)}, /* (C12) gpio3[17] */ /* SIM_SEL */
{-1}
};
/* I2C0 PMIC */
static struct module_pin_mux i2c0_pin_mux[] = {
{OFFSET(i2c0_sda), (MODE(0) | RXACTIVE | PULLUDEN | PULLUP_EN | SLEWCTRL)}, /* (C17) I2C0_SDA */
{OFFSET(i2c0_scl), (MODE(0) | RXACTIVE | PULLUDEN | PULLUP_EN | SLEWCTRL)}, /* (C16) I2C0_SCL */
{-1}
};
/* I2C2 System */
static struct module_pin_mux i2c2_pin_mux[] = {
{OFFSET(uart1_rtsn), (MODE(3) | RXACTIVE | PULLUDEN | PULLUP_EN | SLEWCTRL)}, /* (D17) I2C2_SCL */
{OFFSET(uart1_ctsn), (MODE(3) | RXACTIVE | PULLUDEN | PULLUP_EN | SLEWCTRL)}, /* (D18) I2C2_SDA */
{-1},
};
/* RMII1: Ethernet Switch */
static struct module_pin_mux rmii1_pin_mux[] = {
/* RMII */
{OFFSET(mii1_crs), MODE(1) | PULLUDDIS | RXACTIVE}, /* (H17) rmii1_crs */
{OFFSET(mii1_rxerr), MODE(7) | PULLUDEN | PULLDOWN_EN | RXACTIVE}, /* (J15) gpio */
{OFFSET(mii1_rxd0), MODE(1) | PULLUDDIS | RXACTIVE}, /* (M16) rmii1_rxd0 */
{OFFSET(mii1_rxd1), MODE(1) | PULLUDDIS | RXACTIVE}, /* (L15) rmii1_rxd1 */
{OFFSET(mii1_txen), MODE(1) | PULLUDDIS}, /* (J16) rmii1_txen */
{OFFSET(mii1_txd0), MODE(1) | PULLUDDIS}, /* (K17) rmii1_txd0 */
{OFFSET(mii1_txd1), MODE(1) | PULLUDDIS}, /* (K16) rmii1_txd1 */
{OFFSET(rmii1_refclk), MODE(0) | PULLUDDIS | RXACTIVE}, /* (H18) rmii1_refclk */
/* SMI */
{OFFSET(mdio_clk), MODE(0) | PULLUDDIS}, /* (M18) mdio_clk */
{OFFSET(mdio_data), MODE(0) | PULLUDEN | PULLUP_EN | RXACTIVE}, /* (M17) mdio_data */
/* 25MHz Clock Output */
{OFFSET(xdma_event_intr0), MODE(3)}, /* (A15) clkout1 (25 MHz clk for PHY) */
{-1}
};
/* MMC0: WiFi */
static struct module_pin_mux mmc0_sdio_pin_mux[] = {
{OFFSET(mmc0_clk), (MODE(0) | PULLUDEN | PULLUP_EN | RXACTIVE)}, /* (G17) MMC0_CLK */
{OFFSET(mmc0_cmd), (MODE(0) | PULLUDEN | PULLUP_EN | RXACTIVE)}, /* (G18) MMC0_CMD */
{OFFSET(mmc0_dat0), (MODE(0) | PULLUDEN | PULLUP_EN | RXACTIVE)}, /* (G16) MMC0_DAT0 */
{OFFSET(mmc0_dat1), (MODE(0) | PULLUDEN | PULLUP_EN | RXACTIVE)}, /* (G15) MMC0_DAT1 */
{OFFSET(mmc0_dat2), (MODE(0) | PULLUDEN | PULLUP_EN | RXACTIVE)}, /* (F18) MMC0_DAT2 */
{OFFSET(mmc0_dat3), (MODE(0) | PULLUDEN | PULLUP_EN | RXACTIVE)}, /* (F17) MMC0_DAT3 */
{-1}
};
/* MMC1: eMMC */
static struct module_pin_mux mmc1_emmc_pin_mux[] = {
{OFFSET(gpmc_csn1), (MODE(2) | PULLUDEN | PULLUP_EN | RXACTIVE)}, /* (U9) MMC1_CLK */
{OFFSET(gpmc_csn2), (MODE(2) | PULLUDEN | PULLUP_EN | RXACTIVE)}, /* (V9) MMC1_CMD */
{OFFSET(gpmc_ad0), (MODE(1) | PULLUDEN | PULLUP_EN | RXACTIVE)}, /* (U7) MMC1_DAT0 */
{OFFSET(gpmc_ad1), (MODE(1) | PULLUDEN | PULLUP_EN | RXACTIVE)}, /* (V7) MMC1_DAT1 */
{OFFSET(gpmc_ad2), (MODE(1) | PULLUDEN | PULLUP_EN | RXACTIVE)}, /* (R8) MMC1_DAT2 */
{OFFSET(gpmc_ad3), (MODE(1) | PULLUDEN | PULLUP_EN | RXACTIVE)}, /* (T8) MMC1_DAT3 */
{OFFSET(gpmc_ad4), (MODE(1) | PULLUDEN | PULLUP_EN | RXACTIVE)}, /* (U8) MMC1_DAT4 */
{OFFSET(gpmc_ad5), (MODE(1) | PULLUDEN | PULLUP_EN | RXACTIVE)}, /* (V8) MMC1_DAT5 */
{OFFSET(gpmc_ad6), (MODE(1) | PULLUDEN | PULLUP_EN | RXACTIVE)}, /* (R9) MMC1_DAT6 */
{OFFSET(gpmc_ad7), (MODE(1) | PULLUDEN | PULLUP_EN | RXACTIVE)}, /* (T9) MMC1_DAT7 */
{-1}
};
/* USB_DRVBUS not used -> configure as GPIO */
static struct module_pin_mux usb_pin_mux[] = {
{OFFSET(usb0_drvvbus), (MODE(7) | PULLUDDIS)}, /* (F16) USB0_DRVVBUS */
{OFFSET(usb1_drvvbus), (MODE(7) | PULLUDDIS)}, /* (F15) USB1_DRVVBUS */
{-1}
};
/* UART0: RS232/RS485 shield mode */
static struct module_pin_mux uart0_pin_mux[] = {
{OFFSET(uart0_rxd), (MODE(0) | PULLUDEN | PULLUP_EN | RXACTIVE)}, /* (E15) UART0_RXD */
{OFFSET(uart0_txd), (MODE(0) | PULLUDEN | PULLUP_EN | SLEWCTRL)}, /* (E16) UART0_TXD */
{-1},
};
/* UART0: Shield I/F (UART, CAN) */
/* Leave UART0 unconfigured because we want to configure it as needed by Linux (can/spi/uart/etc) */
/* Mode 7 = GPIO */
static struct module_pin_mux uart0_disabled_pin_mux[] = {
{OFFSET(uart0_rxd), (MODE(7) | PULLUDDIS | RXACTIVE)}, /* (E15) GPIO1_10 */
{OFFSET(uart0_txd), (MODE(7) | PULLUDDIS | RXACTIVE)}, /* (E16) GPIO1_11 */
{OFFSET(uart0_ctsn), (MODE(7) | PULLUDDIS | RXACTIVE)}, /* (E18) GPIO1_8 */
{OFFSET(uart0_rtsn), (MODE(7) | PULLUDEN | PULLUP_EN)}, /* (E17) GPIO1_9 */
{-1},
};
/* UART1: User (Debug/Console) */
static struct module_pin_mux uart1_pin_mux[] = {
{OFFSET(uart1_rxd), (MODE(0) | PULLUDEN | PULLUP_EN | RXACTIVE)}, /* (D16) uart1_rxd */
{OFFSET(uart1_txd), (MODE(0) | PULLUDEN | PULLUP_EN | SLEWCTRL)}, /* (D15) uart1_txd */
{-1},
};
/* UART3: GNSS */
static struct module_pin_mux uart3_pin_mux[] = {
{OFFSET(mii1_rxd3), (MODE(1) | PULLUDEN | PULLUP_EN | RXACTIVE)}, /* (L17) UART3_RXD */
{OFFSET(mii1_rxd2), (MODE(1) | PULLUDEN | PULLUP_EN | SLEWCTRL)}, /* (L16) UART3_TXD */
{-1}
};
/* UART5: Highspeed UART for Bluetooth (no SLEWCTRL) */
static struct module_pin_mux uart5_pin_mux[] = {
{OFFSET(lcd_data9), (MODE(4) | PULLUDEN | PULLUP_EN | RXACTIVE)}, /* (U2) UART5_RXD */
{OFFSET(lcd_data8), (MODE(4) | PULLUDEN | PULLUP_EN)}, /* (U1) UART5_TXD */
{OFFSET(lcd_data14), (MODE(6) | PULLUDEN | PULLUP_EN | RXACTIVE)}, /* (V4) uart5_ctsn */
{OFFSET(lcd_data15), (MODE(6) | PULLUDEN | PULLUP_EN)}, /* (T5) uart5_rtsn */
{-1}
};
static struct module_pin_mux unused_pin_mux[] = {
/* SYSBOOT6, 7, 10, 11: Not used pulldown active, receiver disabled */
{OFFSET(lcd_data6), (MODE(7) | PULLUDEN | PULLDOWN_EN)},
{OFFSET(lcd_data7), (MODE(7) | PULLUDEN | PULLDOWN_EN)},
{OFFSET(lcd_data10), (MODE(7) | PULLUDEN | PULLDOWN_EN)},
{OFFSET(lcd_data11), (MODE(7) | PULLUDEN | PULLDOWN_EN)},
/* TODO: GPMCA1..3, A6..8 */
{-1}
};
void enable_board_pin_mux(void)
{
configure_module_pin_mux(gpio_pin_mux);
configure_module_pin_mux(rmii1_pin_mux);
configure_module_pin_mux(mmc0_sdio_pin_mux);
configure_module_pin_mux(mmc1_emmc_pin_mux);
configure_module_pin_mux(usb_pin_mux);
configure_module_pin_mux(i2c0_pin_mux);
configure_module_pin_mux(i2c2_pin_mux);
configure_module_pin_mux(uart3_pin_mux);
configure_module_pin_mux(uart5_pin_mux);
configure_module_pin_mux(unused_pin_mux);
}
void enable_uart0_pin_mux(void)
{
configure_module_pin_mux(uart0_pin_mux);
}
void disable_uart0_pin_mux(void)
{
configure_module_pin_mux(uart0_disabled_pin_mux);
}
void enable_uart1_pin_mux(void)
{
configure_module_pin_mux(uart1_pin_mux);
}
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