421 lines
10 KiB
C
421 lines
10 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Maintainer : Steve Sakoman <steve@sakoman.com>
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*
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* Derived from Beagle Board, 3430 SDP, and OMAP3EVM code by
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* Richard Woodruff <r-woodruff2@ti.com>
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* Syed Mohammed Khasim <khasim@ti.com>
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* Sunil Kumar <sunilsaini05@gmail.com>
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* Shashi Ranjan <shashiranjanmca05@gmail.com>
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*
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* (C) Copyright 2004-2008
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* Texas Instruments, <www.ti.com>
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*/
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#include <common.h>
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#include <dm.h>
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#include <ns16550.h>
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#include <netdev.h>
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#include <twl4030.h>
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#include <linux/mtd/rawnand.h>
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#include <asm/io.h>
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#include <asm/arch/mmc_host_def.h>
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#include <asm/arch/mux.h>
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#include <asm/arch/mem.h>
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#include <asm/arch/sys_proto.h>
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#include <asm/gpio.h>
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#include <asm/mach-types.h>
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#include "overo.h"
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#ifdef CONFIG_USB_EHCI_HCD
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#include <usb.h>
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#include <asm/ehci-omap.h>
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#endif
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#define TWL4030_I2C_BUS 0
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#define EXPANSION_EEPROM_I2C_BUS 2
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#define EXPANSION_EEPROM_I2C_ADDRESS 0x51
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#define GUMSTIX_EMPTY_EEPROM 0x0
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#define GUMSTIX_SUMMIT 0x01000200
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#define GUMSTIX_TOBI 0x02000200
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#define GUMSTIX_TOBI_DUO 0x03000200
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#define GUMSTIX_PALO35 0x04000200
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#define GUMSTIX_PALO43 0x05000200
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#define GUMSTIX_CHESTNUT43 0x06000200
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#define GUMSTIX_PINTO 0x07000200
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#define GUMSTIX_GALLOP43 0x08000200
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#define GUMSTIX_ALTO35 0x09000200
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#define GUMSTIX_STAGECOACH 0x0A000200
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#define GUMSTIX_THUMBO 0x0B000200
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#define GUMSTIX_TURTLECORE 0x0C000200
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#define GUMSTIX_ARBOR43C 0x0D000200
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#define ETTUS_USRP_E 0x01000300
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#define GUMSTIX_NO_EEPROM 0xffffffff
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static struct {
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unsigned int device_vendor;
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unsigned char revision;
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unsigned char content;
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char fab_revision[8];
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char env_var[16];
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char env_setting[64];
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} expansion_config = {0x0};
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static const struct ns16550_platdata overo_serial = {
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.base = OMAP34XX_UART3,
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.reg_shift = 2,
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.clock = V_NS16550_CLK,
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.fcr = UART_FCR_DEFVAL,
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};
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U_BOOT_DEVICE(overo_uart) = {
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"ns16550_serial",
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&overo_serial
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};
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/*
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* Routine: get_sdio2_config
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* Description: Return information about the wifi module connection
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* Returns 0 if the module connects though a level translator
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* Returns 1 if the module connects directly
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*/
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int get_sdio2_config(void)
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{
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int sdio_direct;
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if (!gpio_request(130, "") && !gpio_request(139, "")) {
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gpio_direction_output(130, 0);
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gpio_direction_input(139);
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sdio_direct = 1;
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gpio_set_value(130, 0);
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if (gpio_get_value(139) == 0) {
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gpio_set_value(130, 1);
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if (gpio_get_value(139) == 1)
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sdio_direct = 0;
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}
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gpio_direction_input(130);
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} else {
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puts("Error: unable to acquire sdio2 clk GPIOs\n");
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sdio_direct = -1;
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}
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return sdio_direct;
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}
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/*
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* Routine: get_expansion_id
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* Description: This function checks for expansion board by checking I2C
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* bus 2 for the availability of an AT24C01B serial EEPROM.
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* returns the device_vendor field from the EEPROM
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*/
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unsigned int get_expansion_id(void)
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{
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if (expansion_config.device_vendor != 0x0)
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return expansion_config.device_vendor;
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i2c_set_bus_num(EXPANSION_EEPROM_I2C_BUS);
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/* return GUMSTIX_NO_EEPROM if eeprom doesn't respond */
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if (i2c_probe(EXPANSION_EEPROM_I2C_ADDRESS) == 1) {
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i2c_set_bus_num(TWL4030_I2C_BUS);
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return GUMSTIX_NO_EEPROM;
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}
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/* read configuration data */
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i2c_read(EXPANSION_EEPROM_I2C_ADDRESS, 0, 1, (u8 *)&expansion_config,
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sizeof(expansion_config));
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i2c_set_bus_num(TWL4030_I2C_BUS);
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return expansion_config.device_vendor;
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}
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/*
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* Routine: misc_init_r
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* Description: Configure board specific parts
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*/
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int misc_init_r(void)
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{
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unsigned int expansion_id;
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twl4030_power_init();
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twl4030_led_init(TWL4030_LED_LEDEN_LEDAON | TWL4030_LED_LEDEN_LEDBON);
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printf("Board revision: %d\n", get_board_revision());
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switch (get_sdio2_config()) {
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case 0:
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puts("Tranceiver detected on mmc2\n");
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MUX_OVERO_SDIO2_TRANSCEIVER();
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break;
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case 1:
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puts("Direct connection on mmc2\n");
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MUX_OVERO_SDIO2_DIRECT();
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break;
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default:
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puts("Unable to detect mmc2 connection type\n");
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}
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expansion_id = get_expansion_id();
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switch (expansion_id) {
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case GUMSTIX_SUMMIT:
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printf("Recognized Summit expansion board (rev %d %s)\n",
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expansion_config.revision,
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expansion_config.fab_revision);
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MUX_GUMSTIX();
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env_set("defaultdisplay", "dvi");
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env_set("expansionname", "summit");
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break;
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case GUMSTIX_TOBI:
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printf("Recognized Tobi expansion board (rev %d %s)\n",
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expansion_config.revision,
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expansion_config.fab_revision);
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MUX_GUMSTIX();
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env_set("defaultdisplay", "dvi");
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env_set("expansionname", "tobi");
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break;
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case GUMSTIX_TOBI_DUO:
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printf("Recognized Tobi Duo expansion board (rev %d %s)\n",
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expansion_config.revision,
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expansion_config.fab_revision);
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MUX_GUMSTIX();
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env_set("expansionname", "tobiduo");
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break;
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case GUMSTIX_PALO35:
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printf("Recognized Palo35 expansion board (rev %d %s)\n",
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expansion_config.revision,
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expansion_config.fab_revision);
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MUX_GUMSTIX();
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env_set("defaultdisplay", "lcd35");
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env_set("expansionname", "palo35");
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break;
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case GUMSTIX_PALO43:
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printf("Recognized Palo43 expansion board (rev %d %s)\n",
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expansion_config.revision,
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expansion_config.fab_revision);
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MUX_GUMSTIX();
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env_set("defaultdisplay", "lcd43");
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env_set("expansionname", "palo43");
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break;
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case GUMSTIX_CHESTNUT43:
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printf("Recognized Chestnut43 expansion board (rev %d %s)\n",
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expansion_config.revision,
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expansion_config.fab_revision);
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MUX_GUMSTIX();
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env_set("defaultdisplay", "lcd43");
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env_set("expansionname", "chestnut43");
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break;
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case GUMSTIX_PINTO:
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printf("Recognized Pinto expansion board (rev %d %s)\n",
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expansion_config.revision,
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expansion_config.fab_revision);
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MUX_GUMSTIX();
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break;
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case GUMSTIX_GALLOP43:
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printf("Recognized Gallop43 expansion board (rev %d %s)\n",
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expansion_config.revision,
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expansion_config.fab_revision);
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MUX_GUMSTIX();
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env_set("defaultdisplay", "lcd43");
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env_set("expansionname", "gallop43");
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break;
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case GUMSTIX_ALTO35:
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printf("Recognized Alto35 expansion board (rev %d %s)\n",
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expansion_config.revision,
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expansion_config.fab_revision);
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MUX_GUMSTIX();
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MUX_ALTO35();
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env_set("defaultdisplay", "lcd35");
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env_set("expansionname", "alto35");
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break;
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case GUMSTIX_STAGECOACH:
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printf("Recognized Stagecoach expansion board (rev %d %s)\n",
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expansion_config.revision,
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expansion_config.fab_revision);
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MUX_GUMSTIX();
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break;
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case GUMSTIX_THUMBO:
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printf("Recognized Thumbo expansion board (rev %d %s)\n",
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expansion_config.revision,
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expansion_config.fab_revision);
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MUX_GUMSTIX();
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break;
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case GUMSTIX_TURTLECORE:
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printf("Recognized Turtlecore expansion board (rev %d %s)\n",
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expansion_config.revision,
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expansion_config.fab_revision);
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MUX_GUMSTIX();
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break;
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case GUMSTIX_ARBOR43C:
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printf("Recognized Arbor43C expansion board (rev %d %s)\n",
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expansion_config.revision,
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expansion_config.fab_revision);
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MUX_GUMSTIX();
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MUX_ARBOR43C();
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env_set("defaultdisplay", "lcd43");
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env_set("expansionname", "arbor43c");
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break;
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case ETTUS_USRP_E:
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printf("Recognized Ettus Research USRP-E (rev %d %s)\n",
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expansion_config.revision,
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expansion_config.fab_revision);
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MUX_GUMSTIX();
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MUX_USRP_E();
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env_set("defaultdisplay", "dvi");
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break;
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case GUMSTIX_NO_EEPROM:
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case GUMSTIX_EMPTY_EEPROM:
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puts("No or empty EEPROM on expansion board\n");
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MUX_GUMSTIX();
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env_set("expansionname", "tobi");
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break;
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default:
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printf("Unrecognized expansion board 0x%08x\n", expansion_id);
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break;
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}
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if (expansion_config.content == 1)
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env_set(expansion_config.env_var, expansion_config.env_setting);
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omap_die_id_display();
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if (get_cpu_family() == CPU_OMAP34XX)
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env_set("boardname", "overo");
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else
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env_set("boardname", "overo-storm");
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return 0;
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}
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#if defined(CONFIG_CMD_NET)
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/* GPMC definitions for LAN9221 chips on Tobi expansion boards */
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static const u32 gpmc_lan_config[] = {
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NET_LAN9221_GPMC_CONFIG1,
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NET_LAN9221_GPMC_CONFIG2,
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NET_LAN9221_GPMC_CONFIG3,
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NET_LAN9221_GPMC_CONFIG4,
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NET_LAN9221_GPMC_CONFIG5,
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NET_LAN9221_GPMC_CONFIG6,
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/*CONFIG7- computed as params */
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};
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/*
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* Routine: setup_net_chip
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* Description: Setting up the configuration GPMC registers specific to the
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* Ethernet hardware.
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*/
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static void setup_net_chip(void)
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{
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struct ctrl *ctrl_base = (struct ctrl *)OMAP34XX_CTRL_BASE;
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/* Enable off mode for NWE in PADCONF_GPMC_NWE register */
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writew(readw(&ctrl_base ->gpmc_nwe) | 0x0E00, &ctrl_base->gpmc_nwe);
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/* Enable off mode for NOE in PADCONF_GPMC_NADV_ALE register */
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writew(readw(&ctrl_base->gpmc_noe) | 0x0E00, &ctrl_base->gpmc_noe);
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/* Enable off mode for ALE in PADCONF_GPMC_NADV_ALE register */
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writew(readw(&ctrl_base->gpmc_nadv_ale) | 0x0E00,
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&ctrl_base->gpmc_nadv_ale);
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}
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/*
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* Routine: reset_net_chip
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* Description: Reset the Ethernet hardware.
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*/
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static void reset_net_chip(void)
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{
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/* Make GPIO 64 as output pin and send a magic pulse through it */
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if (!gpio_request(64, "")) {
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gpio_direction_output(64, 0);
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gpio_set_value(64, 1);
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udelay(1);
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gpio_set_value(64, 0);
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udelay(1);
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gpio_set_value(64, 1);
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}
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}
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int board_eth_init(bd_t *bis)
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{
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unsigned int expansion_id;
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int rc = 0;
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#ifdef CONFIG_SMC911X
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expansion_id = get_expansion_id();
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switch (expansion_id) {
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case GUMSTIX_TOBI_DUO:
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/* second lan chip */
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enable_gpmc_cs_config(gpmc_lan_config, &gpmc_cfg->cs[4],
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0x2B000000, GPMC_SIZE_16M);
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/* no break */
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case GUMSTIX_TOBI:
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case GUMSTIX_CHESTNUT43:
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case GUMSTIX_STAGECOACH:
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case GUMSTIX_NO_EEPROM:
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case GUMSTIX_EMPTY_EEPROM:
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/* first lan chip */
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enable_gpmc_cs_config(gpmc_lan_config, &gpmc_cfg->cs[5],
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0x2C000000, GPMC_SIZE_16M);
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setup_net_chip();
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reset_net_chip();
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rc = smc911x_initialize(0, CONFIG_SMC911X_BASE);
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break;
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default:
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break;
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}
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#endif
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return rc;
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}
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#endif
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#if defined(CONFIG_MMC)
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int board_mmc_init(bd_t *bis)
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{
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return omap_mmc_init(0, 0, 0, -1, -1);
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}
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#endif
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#if defined(CONFIG_MMC)
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void board_mmc_power_init(void)
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{
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twl4030_power_mmc_init(0);
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}
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#endif
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#if defined(CONFIG_USB_EHCI_HCD)
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static struct omap_usbhs_board_data usbhs_bdata = {
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.port_mode[0] = OMAP_USBHS_PORT_MODE_UNUSED,
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.port_mode[1] = OMAP_EHCI_PORT_MODE_PHY,
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.port_mode[2] = OMAP_USBHS_PORT_MODE_UNUSED
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};
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#define GUMSTIX_GPIO_USBH_CPEN 168
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int ehci_hcd_init(int index, enum usb_init_type init,
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struct ehci_hccr **hccr, struct ehci_hcor **hcor)
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{
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/* Enable USB power */
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if (!gpio_request(GUMSTIX_GPIO_USBH_CPEN, "usbh_cpen"))
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gpio_direction_output(GUMSTIX_GPIO_USBH_CPEN, 1);
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return omap_ehci_hcd_init(index, &usbhs_bdata, hccr, hcor);
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}
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int ehci_hcd_stop(void)
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{
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/* Disable USB power */
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gpio_set_value(GUMSTIX_GPIO_USBH_CPEN, 0);
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gpio_free(GUMSTIX_GPIO_USBH_CPEN);
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return omap_ehci_hcd_stop();
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}
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#endif /* CONFIG_USB_EHCI_HCD */
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