diff options
Diffstat (limited to 'board/ti/am335x')
-rw-r--r-- | board/ti/am335x/Makefile | 4 | ||||
-rw-r--r-- | board/ti/am335x/evm.c | 44 | ||||
-rw-r--r-- | board/ti/am335x/mux.c | 163 |
3 files changed, 156 insertions, 55 deletions
diff --git a/board/ti/am335x/Makefile b/board/ti/am335x/Makefile index d58b185..ca50eef 100644 --- a/board/ti/am335x/Makefile +++ b/board/ti/am335x/Makefile @@ -18,7 +18,9 @@ include $(TOPDIR)/config.mk LIB = $(obj)lib$(BOARD).o -COBJS := evm.o mux.o +ifdef CONFIG_SPL_BUILD +COBJS := mux.o +endif SRCS := $(SOBJS:.o=.S) $(COBJS:.o=.c) OBJS := $(addprefix $(obj),$(COBJS)) diff --git a/board/ti/am335x/evm.c b/board/ti/am335x/evm.c deleted file mode 100644 index 5e2d53a..0000000 --- a/board/ti/am335x/evm.c +++ /dev/null @@ -1,44 +0,0 @@ -/* - * evm.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/cpu.h> -#include <asm/arch/hardware.h> -#include <asm/arch/common_def.h> -#include <serial.h> -#include <i2c.h> - -DECLARE_GLOBAL_DATA_PTR; - -#define UART_RESET (0x1 << 1) -#define UART_CLK_RUNNING_MASK 0x1 -#define UART_SMART_IDLE_EN (0x1 << 0x3) - -/* - * Basic board specific setup - */ -int board_init(void) -{ - enable_uart0_pin_mux(); - -#ifdef CONFIG_I2C - enable_i2c0_pin_mux(); - i2c_init(CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE); -#endif - - gd->bd->bi_boot_params = PHYS_DRAM_1 + 0x100; - - return 0; -} diff --git a/board/ti/am335x/mux.c b/board/ti/am335x/mux.c index 9ccb436..80becd5 100644 --- a/board/ti/am335x/mux.c +++ b/board/ti/am335x/mux.c @@ -13,10 +13,11 @@ * GNU General Public License for more details. */ -#include <config.h> -#include <asm/arch/common_def.h> +#include <common.h> +#include <asm/arch/sys_proto.h> #include <asm/arch/hardware.h> #include <asm/io.h> +#include <i2c.h> #define MUX_CFG(value, offset) \ __raw_writel(value, (CTRL_BASE + offset)); @@ -258,7 +259,6 @@ static struct module_pin_mux uart0_pin_mux[] = { {-1}, }; -#ifdef CONFIG_MMC 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 */ @@ -270,7 +270,29 @@ static struct module_pin_mux mmc0_pin_mux[] = { {OFFSET(spi0_cs1), (MODE(5) | RXACTIVE | PULLUP_EN)}, /* MMC0_CD */ {-1}, }; -#endif + +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 | @@ -280,6 +302,66 @@ static struct module_pin_mux i2c0_pin_mux[] = { {-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}, +}; + /* * Configure the pin mux for the module */ @@ -299,14 +381,75 @@ void enable_uart0_pin_mux(void) configure_module_pin_mux(uart0_pin_mux); } -#ifdef CONFIG_MMC -void enable_mmc0_pin_mux(void) -{ - configure_module_pin_mux(mmc0_pin_mux); -} -#endif 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 (!strncmp(header->name, "A335BONE", HDR_NAME_LEN)) { + /* Beaglebone pinmux */ + configure_module_pin_mux(i2c1_pin_mux); + configure_module_pin_mux(mii1_pin_mux); + configure_module_pin_mux(mmc0_pin_mux); + configure_module_pin_mux(mmc1_pin_mux); + } else if (!strncmp(header->config, "SKU#01", 6)) { + /* 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); + else if (profile == PROFILE_2) { + configure_module_pin_mux(mmc1_pin_mux); + configure_module_pin_mux(spi0_pin_mux); + } + } else if (!strncmp(header->name, "A335X_SK", HDR_NAME_LEN)) { + /* 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 { + puts("Unknown board, cannot configure pinmux."); + hang(); + } +} |