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