mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-09-07 05:13:21 +09:00
![Adam YH Lee](/assets/img/avatar_default.png)
AM335x-based 'Gumstix Pepper' SBCs and variants use different types of RAM (DDR2 vs DDR3 with DDR3 being the default). Detect the board type by reading the factory-programmed EEPROM [1] and use this to select any runtime boot options such as RAM type. [1] http://elinux.org/BeagleBoardPinMux#List_of_Vendor_and_Device_IDs Signed-off-by: Adam YH Lee <adam.yh.lee@gmail.com> Signed-off-by: Ash Charles <ashcharles@gmail.com>
84 lines
2.8 KiB
C
84 lines
2.8 KiB
C
/*
|
|
* Muxing for Gumstix Pepper and AM335x-based boards
|
|
*
|
|
* Copyright (C) 2014, Gumstix, Incorporated - http://www.gumstix.com/
|
|
*
|
|
* SPDX-License-Identifier: GPL-2.0+
|
|
*/
|
|
#include <common.h>
|
|
#include <asm/arch/sys_proto.h>
|
|
#include <asm/arch/hardware.h>
|
|
#include <asm/arch/mux.h>
|
|
#include <asm/io.h>
|
|
#include <i2c.h>
|
|
#include "board.h"
|
|
|
|
static struct module_pin_mux uart0_pin_mux[] = {
|
|
{OFFSET(uart0_rxd), (MODE(0) | PULLUP_EN | RXACTIVE)}, /* UART0_RXD */
|
|
{OFFSET(uart0_txd), (MODE(0) | PULLUDEN)}, /* UART0_TXD */
|
|
{-1},
|
|
};
|
|
|
|
static struct module_pin_mux mmc0_pin_mux[] = {
|
|
{OFFSET(mmc0_dat3), (MODE(0) | RXACTIVE | PULLUP_EN)}, /* MMC0_DAT3 */
|
|
{OFFSET(mmc0_dat2), (MODE(0) | RXACTIVE | PULLUP_EN)}, /* MMC0_DAT2 */
|
|
{OFFSET(mmc0_dat1), (MODE(0) | RXACTIVE | PULLUP_EN)}, /* MMC0_DAT1 */
|
|
{OFFSET(mmc0_dat0), (MODE(0) | RXACTIVE | PULLUP_EN)}, /* MMC0_DAT0 */
|
|
{OFFSET(mmc0_clk), (MODE(0) | RXACTIVE | PULLUP_EN)}, /* MMC0_CLK */
|
|
{OFFSET(mmc0_cmd), (MODE(0) | RXACTIVE | PULLUP_EN)}, /* MMC0_CMD */
|
|
{OFFSET(spi0_cs1), (MODE(5) | RXACTIVE | PULLUP_EN)}, /* MMC0_CD */
|
|
{-1},
|
|
};
|
|
|
|
static struct module_pin_mux i2c0_pin_mux[] = {
|
|
/* I2C_DATA */
|
|
{OFFSET(i2c0_sda), (MODE(0) | RXACTIVE | PULLUDEN | SLEWCTRL)},
|
|
/* I2C_SCLK */
|
|
{OFFSET(i2c0_scl), (MODE(0) | RXACTIVE | PULLUDEN | SLEWCTRL)},
|
|
{-1},
|
|
};
|
|
|
|
static struct module_pin_mux rgmii1_pin_mux[] = {
|
|
{OFFSET(mii1_txen), MODE(2)}, /* RGMII1_TCTL */
|
|
{OFFSET(mii1_rxdv), MODE(2) | RXACTIVE}, /* RGMII1_RCTL */
|
|
{OFFSET(mii1_txd3), MODE(2)}, /* RGMII1_TD3 */
|
|
{OFFSET(mii1_txd2), MODE(2)}, /* RGMII1_TD2 */
|
|
{OFFSET(mii1_txd1), MODE(2)}, /* RGMII1_TD1 */
|
|
{OFFSET(mii1_txd0), MODE(2)}, /* RGMII1_TD0 */
|
|
{OFFSET(mii1_txclk), MODE(2)}, /* RGMII1_TCLK */
|
|
{OFFSET(mii1_rxclk), MODE(2) | RXACTIVE}, /* RGMII1_RCLK */
|
|
{OFFSET(mii1_rxd3), MODE(2) | RXACTIVE}, /* RGMII1_RD3 */
|
|
{OFFSET(mii1_rxd2), MODE(2) | RXACTIVE}, /* RGMII1_RD2 */
|
|
{OFFSET(mii1_rxd1), MODE(2) | RXACTIVE}, /* RGMII1_RD1 */
|
|
{OFFSET(mii1_rxd0), MODE(2) | RXACTIVE}, /* RGMII1_RD0 */
|
|
{OFFSET(mdio_data), MODE(0) | RXACTIVE | PULLUP_EN},/* MDIO_DATA */
|
|
{OFFSET(mdio_clk), MODE(0) | PULLUP_EN}, /* MDIO_CLK */
|
|
{OFFSET(rmii1_refclk), MODE(7) | RXACTIVE}, /* ETH_INT */
|
|
{OFFSET(mii1_col), MODE(7) | PULLUP_EN}, /* PHY_NRESET */
|
|
{OFFSET(xdma_event_intr1), MODE(3)},
|
|
{-1},
|
|
};
|
|
|
|
void enable_uart0_pin_mux(void)
|
|
{
|
|
configure_module_pin_mux(uart0_pin_mux);
|
|
}
|
|
|
|
void enable_i2c0_pin_mux(void)
|
|
{
|
|
configure_module_pin_mux(i2c0_pin_mux);
|
|
}
|
|
|
|
/*
|
|
* Do board-specific muxes.
|
|
*/
|
|
void enable_board_pin_mux(void)
|
|
{
|
|
/* I2C0 */
|
|
configure_module_pin_mux(i2c0_pin_mux);
|
|
/* SD Card */
|
|
configure_module_pin_mux(mmc0_pin_mux);
|
|
/* Ethernet pinmux. */
|
|
configure_module_pin_mux(rgmii1_pin_mux);
|
|
}
|