u-boot-brain/board/ti/am335x/mux.c
Tom Rini b6ab550413 am335x_boneblack: Only modify NAND/NOR/MMC1 pinmux on BBB in boneblack builds.
In the case of Beaglebone Black we only want to set the NAND or NOR cape
pinmux when the config has been specifically modified by the user for
this non-default case.  Make the default be to set the MMC1 (eMMC)
pinmux.  We don't need similar changes for Beaglebone White as there is
nothing on MMC1 by default there.

Signed-off-by: Tom Rini <trini@ti.com>
2014-10-23 11:53:01 -04:00

374 lines
14 KiB
C

/*
* mux.c
*
* 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 <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 uart1_pin_mux[] = {
{OFFSET(uart1_rxd), (MODE(0) | PULLUP_EN | RXACTIVE)}, /* UART1_RXD */
{OFFSET(uart1_txd), (MODE(0) | PULLUDEN)}, /* UART1_TXD */
{-1},
};
static struct module_pin_mux uart2_pin_mux[] = {
{OFFSET(spi0_sclk), (MODE(1) | PULLUP_EN | RXACTIVE)}, /* UART2_RXD */
{OFFSET(spi0_d0), (MODE(1) | PULLUDEN)}, /* UART2_TXD */
{-1},
};
static struct module_pin_mux uart3_pin_mux[] = {
{OFFSET(spi0_cs1), (MODE(1) | PULLUP_EN | RXACTIVE)}, /* UART3_RXD */
{OFFSET(ecap0_in_pwm0_out), (MODE(1) | PULLUDEN)}, /* UART3_TXD */
{-1},
};
static struct module_pin_mux uart4_pin_mux[] = {
{OFFSET(gpmc_wait0), (MODE(6) | PULLUP_EN | RXACTIVE)}, /* UART4_RXD */
{OFFSET(gpmc_wpn), (MODE(6) | PULLUDEN)}, /* UART4_TXD */
{-1},
};
static struct module_pin_mux uart5_pin_mux[] = {
{OFFSET(lcd_data9), (MODE(4) | PULLUP_EN | RXACTIVE)}, /* UART5_RXD */
{OFFSET(lcd_data8), (MODE(4) | PULLUDEN)}, /* UART5_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(mcasp0_aclkr), (MODE(4) | RXACTIVE)}, /* MMC0_WP */
{OFFSET(spi0_cs1), (MODE(5) | RXACTIVE | PULLUP_EN)}, /* MMC0_CD */
{-1},
};
static struct module_pin_mux mmc0_no_cd_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(mcasp0_aclkr), (MODE(4) | RXACTIVE)}, /* MMC0_WP */
{-1},
};
static struct module_pin_mux mmc0_pin_mux_sk_evm[] = {
{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 mmc1_pin_mux[] = {
{OFFSET(gpmc_ad3), (MODE(1) | RXACTIVE | PULLUP_EN)}, /* MMC1_DAT3 */
{OFFSET(gpmc_ad2), (MODE(1) | RXACTIVE | PULLUP_EN)}, /* MMC1_DAT2 */
{OFFSET(gpmc_ad1), (MODE(1) | RXACTIVE | PULLUP_EN)}, /* MMC1_DAT1 */
{OFFSET(gpmc_ad0), (MODE(1) | RXACTIVE | PULLUP_EN)}, /* MMC1_DAT0 */
{OFFSET(gpmc_csn1), (MODE(2) | RXACTIVE | PULLUP_EN)}, /* MMC1_CLK */
{OFFSET(gpmc_csn2), (MODE(2) | RXACTIVE | PULLUP_EN)}, /* MMC1_CMD */
{OFFSET(gpmc_csn0), (MODE(7) | RXACTIVE | PULLUP_EN)}, /* MMC1_WP */
{OFFSET(gpmc_advn_ale), (MODE(7) | RXACTIVE | PULLUP_EN)}, /* MMC1_CD */
{-1},
};
static struct module_pin_mux i2c0_pin_mux[] = {
{OFFSET(i2c0_sda), (MODE(0) | RXACTIVE |
PULLUDEN | SLEWCTRL)}, /* I2C_DATA */
{OFFSET(i2c0_scl), (MODE(0) | RXACTIVE |
PULLUDEN | SLEWCTRL)}, /* I2C_SCLK */
{-1},
};
static struct module_pin_mux i2c1_pin_mux[] = {
{OFFSET(spi0_d1), (MODE(2) | RXACTIVE |
PULLUDEN | SLEWCTRL)}, /* I2C_DATA */
{OFFSET(spi0_cs0), (MODE(2) | RXACTIVE |
PULLUDEN | SLEWCTRL)}, /* I2C_SCLK */
{-1},
};
static struct module_pin_mux spi0_pin_mux[] = {
{OFFSET(spi0_sclk), (MODE(0) | RXACTIVE | PULLUDEN)}, /* SPI0_SCLK */
{OFFSET(spi0_d0), (MODE(0) | RXACTIVE |
PULLUDEN | PULLUP_EN)}, /* SPI0_D0 */
{OFFSET(spi0_d1), (MODE(0) | RXACTIVE | PULLUDEN)}, /* SPI0_D1 */
{OFFSET(spi0_cs0), (MODE(0) | RXACTIVE |
PULLUDEN | PULLUP_EN)}, /* SPI0_CS0 */
{-1},
};
static struct module_pin_mux gpio0_7_pin_mux[] = {
{OFFSET(ecap0_in_pwm0_out), (MODE(7) | PULLUDEN)}, /* GPIO0_7 */
{-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 */
{-1},
};
static struct module_pin_mux mii1_pin_mux[] = {
{OFFSET(mii1_rxerr), MODE(0) | RXACTIVE}, /* MII1_RXERR */
{OFFSET(mii1_txen), MODE(0)}, /* MII1_TXEN */
{OFFSET(mii1_rxdv), MODE(0) | RXACTIVE}, /* MII1_RXDV */
{OFFSET(mii1_txd3), MODE(0)}, /* MII1_TXD3 */
{OFFSET(mii1_txd2), MODE(0)}, /* MII1_TXD2 */
{OFFSET(mii1_txd1), MODE(0)}, /* MII1_TXD1 */
{OFFSET(mii1_txd0), MODE(0)}, /* MII1_TXD0 */
{OFFSET(mii1_txclk), MODE(0) | RXACTIVE}, /* MII1_TXCLK */
{OFFSET(mii1_rxclk), MODE(0) | RXACTIVE}, /* MII1_RXCLK */
{OFFSET(mii1_rxd3), MODE(0) | RXACTIVE}, /* MII1_RXD3 */
{OFFSET(mii1_rxd2), MODE(0) | RXACTIVE}, /* MII1_RXD2 */
{OFFSET(mii1_rxd1), MODE(0) | RXACTIVE}, /* MII1_RXD1 */
{OFFSET(mii1_rxd0), MODE(0) | RXACTIVE}, /* MII1_RXD0 */
{OFFSET(mdio_data), MODE(0) | RXACTIVE | PULLUP_EN}, /* MDIO_DATA */
{OFFSET(mdio_clk), MODE(0) | PULLUP_EN}, /* MDIO_CLK */
{-1},
};
#ifdef CONFIG_NAND
static struct module_pin_mux nand_pin_mux[] = {
{OFFSET(gpmc_ad0), (MODE(0) | PULLUDDIS | RXACTIVE)}, /* AD0 */
{OFFSET(gpmc_ad1), (MODE(0) | PULLUDDIS | RXACTIVE)}, /* AD1 */
{OFFSET(gpmc_ad2), (MODE(0) | PULLUDDIS | RXACTIVE)}, /* AD2 */
{OFFSET(gpmc_ad3), (MODE(0) | PULLUDDIS | RXACTIVE)}, /* AD3 */
{OFFSET(gpmc_ad4), (MODE(0) | PULLUDDIS | RXACTIVE)}, /* AD4 */
{OFFSET(gpmc_ad5), (MODE(0) | PULLUDDIS | RXACTIVE)}, /* AD5 */
{OFFSET(gpmc_ad6), (MODE(0) | PULLUDDIS | RXACTIVE)}, /* AD6 */
{OFFSET(gpmc_ad7), (MODE(0) | PULLUDDIS | RXACTIVE)}, /* AD7 */
#ifdef CONFIG_SYS_NAND_BUSWIDTH_16BIT
{OFFSET(gpmc_ad8), (MODE(0) | PULLUDDIS | RXACTIVE)}, /* AD8 */
{OFFSET(gpmc_ad9), (MODE(0) | PULLUDDIS | RXACTIVE)}, /* AD9 */
{OFFSET(gpmc_ad10), (MODE(0) | PULLUDDIS | RXACTIVE)}, /* AD10 */
{OFFSET(gpmc_ad11), (MODE(0) | PULLUDDIS | RXACTIVE)}, /* AD11 */
{OFFSET(gpmc_ad12), (MODE(0) | PULLUDDIS | RXACTIVE)}, /* AD12 */
{OFFSET(gpmc_ad13), (MODE(0) | PULLUDDIS | RXACTIVE)}, /* AD13 */
{OFFSET(gpmc_ad14), (MODE(0) | PULLUDDIS | RXACTIVE)}, /* AD14 */
{OFFSET(gpmc_ad15), (MODE(0) | PULLUDDIS | RXACTIVE)}, /* AD15 */
#endif
{OFFSET(gpmc_wait0), (MODE(0) | PULLUP_EN | RXACTIVE)}, /* nWAIT */
{OFFSET(gpmc_wpn), (MODE(7) | PULLUP_EN)}, /* nWP */
{OFFSET(gpmc_csn0), (MODE(0) | PULLUP_EN)}, /* nCS */
{OFFSET(gpmc_wen), (MODE(0) | PULLDOWN_EN)}, /* WEN */
{OFFSET(gpmc_oen_ren), (MODE(0) | PULLDOWN_EN)}, /* OE */
{OFFSET(gpmc_advn_ale), (MODE(0) | PULLDOWN_EN)}, /* ADV_ALE */
{OFFSET(gpmc_be0n_cle), (MODE(0) | PULLDOWN_EN)}, /* BE_CLE */
{-1},
};
#elif defined(CONFIG_NOR)
static struct module_pin_mux bone_norcape_pin_mux[] = {
{OFFSET(gpmc_a0), MODE(0) | PULLUDDIS}, /* NOR_A0 */
{OFFSET(gpmc_a1), MODE(0) | PULLUDDIS}, /* NOR_A1 */
{OFFSET(gpmc_a2), MODE(0) | PULLUDDIS}, /* NOR_A2 */
{OFFSET(gpmc_a3), MODE(0) | PULLUDDIS}, /* NOR_A3 */
{OFFSET(gpmc_a4), MODE(0) | PULLUDDIS}, /* NOR_A4 */
{OFFSET(gpmc_a5), MODE(0) | PULLUDDIS}, /* NOR_A5 */
{OFFSET(gpmc_a6), MODE(0) | PULLUDDIS}, /* NOR_A6 */
{OFFSET(gpmc_a7), MODE(0) | PULLUDDIS}, /* NOR_A7 */
{OFFSET(gpmc_ad0), MODE(0) | PULLUDDIS | RXACTIVE}, /* NOR_AD0 */
{OFFSET(gpmc_ad1), MODE(0) | PULLUDDIS | RXACTIVE}, /* NOR_AD1 */
{OFFSET(gpmc_ad2), MODE(0) | PULLUDDIS | RXACTIVE}, /* NOR_AD2 */
{OFFSET(gpmc_ad3), MODE(0) | PULLUDDIS | RXACTIVE}, /* NOR_AD3 */
{OFFSET(gpmc_ad4), MODE(0) | PULLUDDIS | RXACTIVE}, /* NOR_AD4 */
{OFFSET(gpmc_ad5), MODE(0) | PULLUDDIS | RXACTIVE}, /* NOR_AD5 */
{OFFSET(gpmc_ad6), MODE(0) | PULLUDDIS | RXACTIVE}, /* NOR_AD6 */
{OFFSET(gpmc_ad7), MODE(0) | PULLUDDIS | RXACTIVE}, /* NOR_AD7 */
{OFFSET(gpmc_ad8), MODE(0) | PULLUDDIS | RXACTIVE}, /* NOR_AD8 */
{OFFSET(gpmc_ad9), MODE(0) | PULLUDDIS | RXACTIVE}, /* NOR_AD9 */
{OFFSET(gpmc_ad10), MODE(0) | PULLUDDIS | RXACTIVE}, /* NOR_AD10 */
{OFFSET(gpmc_ad11), MODE(0) | PULLUDDIS | RXACTIVE}, /* NOR_AD11 */
{OFFSET(gpmc_ad12), MODE(0) | PULLUDDIS | RXACTIVE}, /* NOR_AD12 */
{OFFSET(gpmc_ad13), MODE(0) | PULLUDDIS | RXACTIVE}, /* NOR_AD13 */
{OFFSET(gpmc_ad14), MODE(0) | PULLUDDIS | RXACTIVE}, /* NOR_AD14 */
{OFFSET(gpmc_ad15), MODE(0) | PULLUDDIS | RXACTIVE}, /* NOR_AD15 */
{OFFSET(gpmc_csn0), MODE(0) | PULLUDEN | PULLUP_EN}, /* CE */
{OFFSET(gpmc_advn_ale), MODE(0) | PULLUDEN | PULLDOWN_EN}, /* ALE */
{OFFSET(gpmc_oen_ren), MODE(0) | PULLUDEN | PULLDOWN_EN},/* OEn_REN */
{OFFSET(gpmc_be0n_cle), MODE(0) | PULLUDEN | PULLDOWN_EN},/* unused */
{OFFSET(gpmc_wen), MODE(0) | PULLUDEN | PULLDOWN_EN}, /* WEN */
{OFFSET(gpmc_wait0), MODE(0) | PULLUDEN | PULLUP_EN | RXACTIVE},/*WAIT*/
{-1},
};
#endif
#if defined(CONFIG_NOR_BOOT)
void enable_norboot_pin_mux(void)
{
configure_module_pin_mux(bone_norcape_pin_mux);
}
#endif
void enable_uart0_pin_mux(void)
{
configure_module_pin_mux(uart0_pin_mux);
}
void enable_uart1_pin_mux(void)
{
configure_module_pin_mux(uart1_pin_mux);
}
void enable_uart2_pin_mux(void)
{
configure_module_pin_mux(uart2_pin_mux);
}
void enable_uart3_pin_mux(void)
{
configure_module_pin_mux(uart3_pin_mux);
}
void enable_uart4_pin_mux(void)
{
configure_module_pin_mux(uart4_pin_mux);
}
void enable_uart5_pin_mux(void)
{
configure_module_pin_mux(uart5_pin_mux);
}
void enable_i2c0_pin_mux(void)
{
configure_module_pin_mux(i2c0_pin_mux);
}
/*
* The AM335x GP EVM, if daughter card(s) are connected, can have 8
* different profiles. These profiles determine what peripherals are
* valid and need pinmux to be configured.
*/
#define PROFILE_NONE 0x0
#define PROFILE_0 (1 << 0)
#define PROFILE_1 (1 << 1)
#define PROFILE_2 (1 << 2)
#define PROFILE_3 (1 << 3)
#define PROFILE_4 (1 << 4)
#define PROFILE_5 (1 << 5)
#define PROFILE_6 (1 << 6)
#define PROFILE_7 (1 << 7)
#define PROFILE_MASK 0x7
#define PROFILE_ALL 0xFF
/* CPLD registers */
#define I2C_CPLD_ADDR 0x35
#define CFG_REG 0x10
static unsigned short detect_daughter_board_profile(void)
{
unsigned short val;
if (i2c_probe(I2C_CPLD_ADDR))
return PROFILE_NONE;
if (i2c_read(I2C_CPLD_ADDR, CFG_REG, 1, (unsigned char *)(&val), 2))
return PROFILE_NONE;
return (1 << (val & PROFILE_MASK));
}
void enable_board_pin_mux(struct am335x_baseboard_id *header)
{
/* Do board-specific muxes. */
if (board_is_bone(header)) {
/* Beaglebone pinmux */
configure_module_pin_mux(i2c1_pin_mux);
configure_module_pin_mux(mii1_pin_mux);
configure_module_pin_mux(mmc0_pin_mux);
#if defined(CONFIG_NAND)
configure_module_pin_mux(nand_pin_mux);
#elif defined(CONFIG_NOR)
configure_module_pin_mux(bone_norcape_pin_mux);
#else
configure_module_pin_mux(mmc1_pin_mux);
#endif
} else if (board_is_gp_evm(header)) {
/* General Purpose EVM */
unsigned short profile = detect_daughter_board_profile();
configure_module_pin_mux(rgmii1_pin_mux);
configure_module_pin_mux(mmc0_pin_mux);
/* In profile #2 i2c1 and spi0 conflict. */
if (profile & ~PROFILE_2)
configure_module_pin_mux(i2c1_pin_mux);
/* Profiles 2 & 3 don't have NAND */
#ifdef CONFIG_NAND
if (profile & ~(PROFILE_2 | PROFILE_3))
configure_module_pin_mux(nand_pin_mux);
#endif
else if (profile == PROFILE_2) {
configure_module_pin_mux(mmc1_pin_mux);
configure_module_pin_mux(spi0_pin_mux);
}
} else if (board_is_idk(header)) {
/* Industrial Motor Control (IDK) */
configure_module_pin_mux(mii1_pin_mux);
configure_module_pin_mux(mmc0_no_cd_pin_mux);
} else if (board_is_evm_sk(header)) {
/* Starter Kit EVM */
configure_module_pin_mux(i2c1_pin_mux);
configure_module_pin_mux(gpio0_7_pin_mux);
configure_module_pin_mux(rgmii1_pin_mux);
configure_module_pin_mux(mmc0_pin_mux_sk_evm);
} else if (board_is_bone_lt(header)) {
/* Beaglebone LT pinmux */
configure_module_pin_mux(i2c1_pin_mux);
configure_module_pin_mux(mii1_pin_mux);
configure_module_pin_mux(mmc0_pin_mux);
#if defined(CONFIG_NAND) && defined(CONFIG_EMMC_BOOT)
configure_module_pin_mux(nand_pin_mux);
#elif defined(CONFIG_NOR) && defined(CONFIG_EMMC_BOOT)
configure_module_pin_mux(bone_norcape_pin_mux);
#else
configure_module_pin_mux(mmc1_pin_mux);
#endif
} else {
puts("Unknown board, cannot configure pinmux.");
hang();
}
}