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https://github.com/AsahiLinux/u-boot
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a956bdcb3f
This patch extends the am335x_evm board for the AM335x IDK.
The IDK board uses MII for the ethernet phy (same as
Beaglebone board) and MMC0 for storage (but without
card detect line).
The IDK uses UART3 for console. So u-boot must be build
with CONFIG_SERIAL4 and CONFIG_CONS_INDEX=4 or for
the am335x_evm_uart3 board configuration as introduced
by Andrew Bradfords recent patch series "am33xx: Enable
UART {1,2,3,4,5}...". When using the IDK with console on UART0,
those patches are not required. In this case the board
slightly needs to be modified.
Signed-off-by: Matthias Fuchs <matthias.fuchs@esd.eu>
289 lines
9.8 KiB
C
289 lines
9.8 KiB
C
/*
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* mux.c
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*
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* Copyright (C) 2011 Texas Instruments Incorporated - http://www.ti.com/
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation version 2.
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*
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* This program is distributed "as is" WITHOUT ANY WARRANTY of any
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* kind, whether express or implied; without even the implied warranty
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* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#include <common.h>
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#include <asm/arch/sys_proto.h>
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#include <asm/arch/hardware.h>
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#include <asm/arch/mux.h>
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#include <asm/io.h>
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#include <i2c.h>
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#include "board.h"
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static struct module_pin_mux uart0_pin_mux[] = {
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{OFFSET(uart0_rxd), (MODE(0) | PULLUP_EN | RXACTIVE)}, /* UART0_RXD */
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{OFFSET(uart0_txd), (MODE(0) | PULLUDEN)}, /* UART0_TXD */
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{-1},
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};
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static struct module_pin_mux uart1_pin_mux[] = {
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{OFFSET(uart1_rxd), (MODE(0) | PULLUP_EN | RXACTIVE)}, /* UART1_RXD */
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{OFFSET(uart1_txd), (MODE(0) | PULLUDEN)}, /* UART1_TXD */
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{-1},
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};
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static struct module_pin_mux uart2_pin_mux[] = {
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{OFFSET(spi0_sclk), (MODE(1) | PULLUP_EN | RXACTIVE)}, /* UART2_RXD */
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{OFFSET(spi0_d0), (MODE(1) | PULLUDEN)}, /* UART2_TXD */
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{-1},
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};
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static struct module_pin_mux uart3_pin_mux[] = {
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{OFFSET(spi0_cs1), (MODE(1) | PULLUP_EN | RXACTIVE)}, /* UART3_RXD */
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{OFFSET(ecap0_in_pwm0_out), (MODE(1) | PULLUDEN)}, /* UART3_TXD */
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{-1},
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};
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static struct module_pin_mux uart4_pin_mux[] = {
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{OFFSET(gpmc_wait0), (MODE(6) | PULLUP_EN | RXACTIVE)}, /* UART4_RXD */
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{OFFSET(gpmc_wpn), (MODE(6) | PULLUDEN)}, /* UART4_TXD */
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{-1},
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};
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static struct module_pin_mux uart5_pin_mux[] = {
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{OFFSET(lcd_data9), (MODE(4) | PULLUP_EN | RXACTIVE)}, /* UART5_RXD */
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{OFFSET(lcd_data8), (MODE(4) | PULLUDEN)}, /* UART5_TXD */
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{-1},
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};
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static struct module_pin_mux mmc0_pin_mux[] = {
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{OFFSET(mmc0_dat3), (MODE(0) | RXACTIVE | PULLUP_EN)}, /* MMC0_DAT3 */
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{OFFSET(mmc0_dat2), (MODE(0) | RXACTIVE | PULLUP_EN)}, /* MMC0_DAT2 */
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{OFFSET(mmc0_dat1), (MODE(0) | RXACTIVE | PULLUP_EN)}, /* MMC0_DAT1 */
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{OFFSET(mmc0_dat0), (MODE(0) | RXACTIVE | PULLUP_EN)}, /* MMC0_DAT0 */
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{OFFSET(mmc0_clk), (MODE(0) | RXACTIVE | PULLUP_EN)}, /* MMC0_CLK */
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{OFFSET(mmc0_cmd), (MODE(0) | RXACTIVE | PULLUP_EN)}, /* MMC0_CMD */
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{OFFSET(mcasp0_aclkr), (MODE(4) | RXACTIVE)}, /* MMC0_WP */
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{OFFSET(spi0_cs1), (MODE(5) | RXACTIVE | PULLUP_EN)}, /* MMC0_CD */
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{-1},
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};
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static struct module_pin_mux mmc0_no_cd_pin_mux[] = {
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{OFFSET(mmc0_dat3), (MODE(0) | RXACTIVE | PULLUP_EN)}, /* MMC0_DAT3 */
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{OFFSET(mmc0_dat2), (MODE(0) | RXACTIVE | PULLUP_EN)}, /* MMC0_DAT2 */
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{OFFSET(mmc0_dat1), (MODE(0) | RXACTIVE | PULLUP_EN)}, /* MMC0_DAT1 */
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{OFFSET(mmc0_dat0), (MODE(0) | RXACTIVE | PULLUP_EN)}, /* MMC0_DAT0 */
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{OFFSET(mmc0_clk), (MODE(0) | RXACTIVE | PULLUP_EN)}, /* MMC0_CLK */
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{OFFSET(mmc0_cmd), (MODE(0) | RXACTIVE | PULLUP_EN)}, /* MMC0_CMD */
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{OFFSET(mcasp0_aclkr), (MODE(4) | RXACTIVE)}, /* MMC0_WP */
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{-1},
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};
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static struct module_pin_mux mmc0_pin_mux_sk_evm[] = {
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{OFFSET(mmc0_dat3), (MODE(0) | RXACTIVE | PULLUP_EN)}, /* MMC0_DAT3 */
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{OFFSET(mmc0_dat2), (MODE(0) | RXACTIVE | PULLUP_EN)}, /* MMC0_DAT2 */
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{OFFSET(mmc0_dat1), (MODE(0) | RXACTIVE | PULLUP_EN)}, /* MMC0_DAT1 */
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{OFFSET(mmc0_dat0), (MODE(0) | RXACTIVE | PULLUP_EN)}, /* MMC0_DAT0 */
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{OFFSET(mmc0_clk), (MODE(0) | RXACTIVE | PULLUP_EN)}, /* MMC0_CLK */
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{OFFSET(mmc0_cmd), (MODE(0) | RXACTIVE | PULLUP_EN)}, /* MMC0_CMD */
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{OFFSET(spi0_cs1), (MODE(5) | RXACTIVE | PULLUP_EN)}, /* MMC0_CD */
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{-1},
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};
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static struct module_pin_mux mmc1_pin_mux[] = {
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{OFFSET(gpmc_ad3), (MODE(1) | RXACTIVE | PULLUP_EN)}, /* MMC1_DAT3 */
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{OFFSET(gpmc_ad2), (MODE(1) | RXACTIVE | PULLUP_EN)}, /* MMC1_DAT2 */
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{OFFSET(gpmc_ad1), (MODE(1) | RXACTIVE | PULLUP_EN)}, /* MMC1_DAT1 */
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{OFFSET(gpmc_ad0), (MODE(1) | RXACTIVE | PULLUP_EN)}, /* MMC1_DAT0 */
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{OFFSET(gpmc_csn1), (MODE(2) | RXACTIVE | PULLUP_EN)}, /* MMC1_CLK */
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{OFFSET(gpmc_csn2), (MODE(2) | RXACTIVE | PULLUP_EN)}, /* MMC1_CMD */
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{OFFSET(gpmc_csn0), (MODE(7) | RXACTIVE | PULLUP_EN)}, /* MMC1_WP */
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{OFFSET(gpmc_advn_ale), (MODE(7) | RXACTIVE | PULLUP_EN)}, /* MMC1_CD */
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{-1},
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};
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static struct module_pin_mux i2c0_pin_mux[] = {
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{OFFSET(i2c0_sda), (MODE(0) | RXACTIVE |
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PULLUDEN | SLEWCTRL)}, /* I2C_DATA */
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{OFFSET(i2c0_scl), (MODE(0) | RXACTIVE |
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PULLUDEN | SLEWCTRL)}, /* I2C_SCLK */
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{-1},
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};
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static struct module_pin_mux i2c1_pin_mux[] = {
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{OFFSET(spi0_d1), (MODE(2) | RXACTIVE |
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PULLUDEN | SLEWCTRL)}, /* I2C_DATA */
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{OFFSET(spi0_cs0), (MODE(2) | RXACTIVE |
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PULLUDEN | SLEWCTRL)}, /* I2C_SCLK */
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{-1},
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};
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static struct module_pin_mux spi0_pin_mux[] = {
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{OFFSET(spi0_sclk), (MODE(0) | RXACTIVE | PULLUDEN)}, /* SPI0_SCLK */
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{OFFSET(spi0_d0), (MODE(0) | RXACTIVE |
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PULLUDEN | PULLUP_EN)}, /* SPI0_D0 */
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{OFFSET(spi0_d1), (MODE(0) | RXACTIVE | PULLUDEN)}, /* SPI0_D1 */
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{OFFSET(spi0_cs0), (MODE(0) | RXACTIVE |
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PULLUDEN | PULLUP_EN)}, /* SPI0_CS0 */
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{-1},
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};
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static struct module_pin_mux gpio0_7_pin_mux[] = {
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{OFFSET(ecap0_in_pwm0_out), (MODE(7) | PULLUDEN)}, /* GPIO0_7 */
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{-1},
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};
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static struct module_pin_mux rgmii1_pin_mux[] = {
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{OFFSET(mii1_txen), MODE(2)}, /* RGMII1_TCTL */
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{OFFSET(mii1_rxdv), MODE(2) | RXACTIVE}, /* RGMII1_RCTL */
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{OFFSET(mii1_txd3), MODE(2)}, /* RGMII1_TD3 */
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{OFFSET(mii1_txd2), MODE(2)}, /* RGMII1_TD2 */
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{OFFSET(mii1_txd1), MODE(2)}, /* RGMII1_TD1 */
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{OFFSET(mii1_txd0), MODE(2)}, /* RGMII1_TD0 */
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{OFFSET(mii1_txclk), MODE(2)}, /* RGMII1_TCLK */
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{OFFSET(mii1_rxclk), MODE(2) | RXACTIVE}, /* RGMII1_RCLK */
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{OFFSET(mii1_rxd3), MODE(2) | RXACTIVE}, /* RGMII1_RD3 */
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{OFFSET(mii1_rxd2), MODE(2) | RXACTIVE}, /* RGMII1_RD2 */
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{OFFSET(mii1_rxd1), MODE(2) | RXACTIVE}, /* RGMII1_RD1 */
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{OFFSET(mii1_rxd0), MODE(2) | RXACTIVE}, /* RGMII1_RD0 */
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{OFFSET(mdio_data), MODE(0) | RXACTIVE | PULLUP_EN},/* MDIO_DATA */
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{OFFSET(mdio_clk), MODE(0) | PULLUP_EN}, /* MDIO_CLK */
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{-1},
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};
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static struct module_pin_mux mii1_pin_mux[] = {
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{OFFSET(mii1_rxerr), MODE(0) | RXACTIVE}, /* MII1_RXERR */
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{OFFSET(mii1_txen), MODE(0)}, /* MII1_TXEN */
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{OFFSET(mii1_rxdv), MODE(0) | RXACTIVE}, /* MII1_RXDV */
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{OFFSET(mii1_txd3), MODE(0)}, /* MII1_TXD3 */
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{OFFSET(mii1_txd2), MODE(0)}, /* MII1_TXD2 */
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{OFFSET(mii1_txd1), MODE(0)}, /* MII1_TXD1 */
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{OFFSET(mii1_txd0), MODE(0)}, /* MII1_TXD0 */
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{OFFSET(mii1_txclk), MODE(0) | RXACTIVE}, /* MII1_TXCLK */
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{OFFSET(mii1_rxclk), MODE(0) | RXACTIVE}, /* MII1_RXCLK */
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{OFFSET(mii1_rxd3), MODE(0) | RXACTIVE}, /* MII1_RXD3 */
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{OFFSET(mii1_rxd2), MODE(0) | RXACTIVE}, /* MII1_RXD2 */
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{OFFSET(mii1_rxd1), MODE(0) | RXACTIVE}, /* MII1_RXD1 */
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{OFFSET(mii1_rxd0), MODE(0) | RXACTIVE}, /* MII1_RXD0 */
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{OFFSET(mdio_data), MODE(0) | RXACTIVE | PULLUP_EN}, /* MDIO_DATA */
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{OFFSET(mdio_clk), MODE(0) | PULLUP_EN}, /* MDIO_CLK */
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{-1},
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};
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void enable_uart0_pin_mux(void)
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{
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configure_module_pin_mux(uart0_pin_mux);
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}
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void enable_uart1_pin_mux(void)
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{
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configure_module_pin_mux(uart1_pin_mux);
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}
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void enable_uart2_pin_mux(void)
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{
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configure_module_pin_mux(uart2_pin_mux);
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}
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void enable_uart3_pin_mux(void)
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{
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configure_module_pin_mux(uart3_pin_mux);
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}
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void enable_uart4_pin_mux(void)
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{
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configure_module_pin_mux(uart4_pin_mux);
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}
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void enable_uart5_pin_mux(void)
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{
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configure_module_pin_mux(uart5_pin_mux);
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}
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void enable_i2c0_pin_mux(void)
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{
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configure_module_pin_mux(i2c0_pin_mux);
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}
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/*
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* The AM335x GP EVM, if daughter card(s) are connected, can have 8
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* different profiles. These profiles determine what peripherals are
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* valid and need pinmux to be configured.
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*/
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#define PROFILE_NONE 0x0
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#define PROFILE_0 (1 << 0)
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#define PROFILE_1 (1 << 1)
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#define PROFILE_2 (1 << 2)
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#define PROFILE_3 (1 << 3)
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#define PROFILE_4 (1 << 4)
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#define PROFILE_5 (1 << 5)
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#define PROFILE_6 (1 << 6)
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#define PROFILE_7 (1 << 7)
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#define PROFILE_MASK 0x7
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#define PROFILE_ALL 0xFF
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/* CPLD registers */
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#define I2C_CPLD_ADDR 0x35
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#define CFG_REG 0x10
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static unsigned short detect_daughter_board_profile(void)
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{
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unsigned short val;
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if (i2c_probe(I2C_CPLD_ADDR))
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return PROFILE_NONE;
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if (i2c_read(I2C_CPLD_ADDR, CFG_REG, 1, (unsigned char *)(&val), 2))
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return PROFILE_NONE;
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return (1 << (val & PROFILE_MASK));
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}
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void enable_board_pin_mux(struct am335x_baseboard_id *header)
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{
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/* Do board-specific muxes. */
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if (!strncmp(header->name, "A335BONE", HDR_NAME_LEN)) {
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/* Beaglebone pinmux */
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configure_module_pin_mux(i2c1_pin_mux);
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configure_module_pin_mux(mii1_pin_mux);
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configure_module_pin_mux(mmc0_pin_mux);
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configure_module_pin_mux(mmc1_pin_mux);
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} else if (!strncmp(header->config, "SKU#01", 6)) {
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/* General Purpose EVM */
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unsigned short profile = detect_daughter_board_profile();
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configure_module_pin_mux(rgmii1_pin_mux);
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configure_module_pin_mux(mmc0_pin_mux);
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/* In profile #2 i2c1 and spi0 conflict. */
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if (profile & ~PROFILE_2)
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configure_module_pin_mux(i2c1_pin_mux);
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else if (profile == PROFILE_2) {
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configure_module_pin_mux(mmc1_pin_mux);
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configure_module_pin_mux(spi0_pin_mux);
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}
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} else if (!strncmp(header->config, "SKU#02", 6)) {
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/*
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* Industrial Motor Control (IDK)
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* note: IDK console is on UART3 by default.
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* So u-boot mus be build with CONFIG_SERIAL4 and
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* CONFIG_CONS_INDEX=4
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*/
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configure_module_pin_mux(mii1_pin_mux);
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configure_module_pin_mux(mmc0_no_cd_pin_mux);
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} else if (!strncmp(header->name, "A335X_SK", HDR_NAME_LEN)) {
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/* Starter Kit EVM */
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configure_module_pin_mux(i2c1_pin_mux);
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configure_module_pin_mux(gpio0_7_pin_mux);
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configure_module_pin_mux(rgmii1_pin_mux);
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configure_module_pin_mux(mmc0_pin_mux_sk_evm);
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} else if (!strncmp(header->name, "A335BNLT", HDR_NAME_LEN)) {
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/* Beaglebone LT pinmux */
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configure_module_pin_mux(i2c1_pin_mux);
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configure_module_pin_mux(mii1_pin_mux);
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configure_module_pin_mux(mmc0_pin_mux);
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configure_module_pin_mux(mmc1_pin_mux);
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} else {
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puts("Unknown board, cannot configure pinmux.");
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hang();
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}
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}
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