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#include <common.h>
#include <dm.h>
#include <ns16550.h>
#include <netdev.h>
#include <twl4030.h>
#include <linux/mtd/nand.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
#include <usb.h>
#include <asm/ehci-omap.h>
#endif
DECLARE_GLOBAL_DATA_PTR;
#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 = {
OMAP34XX_UART3,
2,
V_NS16550_CLK
};
U_BOOT_DEVICE(overo_uart) = {
"serial_omap",
&overo_serial
};
int board_init(void)
{
gpmc_init();
gd->bd->bi_arch_number = MACH_TYPE_OVERO;
gd->bd->bi_boot_params = (OMAP34XX_SDRC_CS0 + 0x100);
return 0;
}
int get_board_revision(void)
{
int revision;
#ifdef CONFIG_SYS_I2C_OMAP34XX
unsigned char data;
i2c_set_bus_num(TWL4030_I2C_BUS);
data = 0x01;
i2c_write(0x4B, 0x29, 1, &data, 1);
data = 0x0c;
i2c_write(0x4B, 0x2b, 1, &data, 1);
i2c_read(0x4B, 0x2a, 1, &data, 1);
#endif
if (!gpio_request(112, "") &&
!gpio_request(113, "") &&
!gpio_request(115, "")) {
gpio_direction_input(112);
gpio_direction_input(113);
gpio_direction_input(115);
revision = gpio_get_value(115) << 2 |
gpio_get_value(113) << 1 |
gpio_get_value(112);
} else {
puts("Error: unable to acquire board revision GPIOs
");
revision = -1;
}
return revision;
}
#ifdef CONFIG_SPL_BUILD
void get_board_mem_timings(struct board_sdrc_timings *timings)
{
timings->mr = MICRON_V_MR_165;
switch (get_board_revision()) {
case REVISION_0:
timings->mcfg = MICRON_V_MCFG_165(128 << 20);
timings->ctrla = MICRON_V_ACTIMA_165;
timings->ctrlb = MICRON_V_ACTIMB_165;
timings->rfr_ctrl = SDP_3430_SDRC_RFR_CTRL_165MHz;
break;
case REVISION_1:
case REVISION_4:
timings->mcfg = MICRON_V_MCFG_200(256 << 20);
timings->ctrla = MICRON_V_ACTIMA_200;
timings->ctrlb = MICRON_V_ACTIMB_200;
timings->rfr_ctrl = SDP_3430_SDRC_RFR_CTRL_200MHz;
break;
case REVISION_2:
timings->mcfg = HYNIX_V_MCFG_200(256 << 20);
timings->ctrla = HYNIX_V_ACTIMA_200;
timings->ctrlb = HYNIX_V_ACTIMB_200;
timings->rfr_ctrl = SDP_3430_SDRC_RFR_CTRL_200MHz;
break;
case REVISION_3:
timings->mcfg = MCFG(512 << 20, 15);
timings->ctrla = MICRON_V_ACTIMA_200;
timings->ctrlb = MICRON_V_ACTIMB_200;
timings->rfr_ctrl = SDP_3430_SDRC_RFR_CTRL_200MHz;
break;
default:
timings->mcfg = MICRON_V_MCFG_165(128 << 20);
timings->ctrla = MICRON_V_ACTIMA_165;
timings->ctrlb = MICRON_V_ACTIMB_165;
timings->rfr_ctrl = SDP_3430_SDRC_RFR_CTRL_165MHz;
}
}
#endif
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
");
sdio_direct = -1;
}
return sdio_direct;
}
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);
if (i2c_probe(EXPANSION_EEPROM_I2C_ADDRESS) == 1) {
i2c_set_bus_num(TWL4030_I2C_BUS);
return GUMSTIX_NO_EEPROM;
}
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;
}
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
", get_board_revision());
switch (get_sdio2_config()) {
case 0:
puts("Tranceiver detected on mmc2
");
MUX_OVERO_SDIO2_TRANSCEIVER();
break;
case 1:
puts("Direct connection on mmc2
");
MUX_OVERO_SDIO2_DIRECT();
break;
default:
puts("Unable to detect mmc2 connection type
");
}
expansion_id = get_expansion_id();
switch (expansion_id) {
case GUMSTIX_SUMMIT:
printf("Recognized Summit expansion board (rev %d %s)
",
expansion_config.revision,
expansion_config.fab_revision);
MUX_GUMSTIX();
setenv("defaultdisplay", "dvi");
setenv("expansionname", "summit");
break;
case GUMSTIX_TOBI:
printf("Recognized Tobi expansion board (rev %d %s)
",
expansion_config.revision,
expansion_config.fab_revision);
MUX_GUMSTIX();
setenv("defaultdisplay", "dvi");
setenv("expansionname", "tobi");
break;
case GUMSTIX_TOBI_DUO:
printf("Recognized Tobi Duo expansion board (rev %d %s)
",
expansion_config.revision,
expansion_config.fab_revision);
MUX_GUMSTIX();
break;
case GUMSTIX_PALO35:
printf("Recognized Palo35 expansion board (rev %d %s)
",
expansion_config.revision,
expansion_config.fab_revision);
MUX_GUMSTIX();
setenv("defaultdisplay", "lcd35");
break;
case GUMSTIX_PALO43:
printf("Recognized Palo43 expansion board (rev %d %s)
",
expansion_config.revision,
expansion_config.fab_revision);
MUX_GUMSTIX();
setenv("defaultdisplay", "lcd43");
setenv("expansionname", "palo43");
break;
case GUMSTIX_CHESTNUT43:
printf("Recognized Chestnut43 expansion board (rev %d %s)
",
expansion_config.revision,
expansion_config.fab_revision);
MUX_GUMSTIX();
setenv("defaultdisplay", "lcd43");
setenv("expansionname", "chestnut43");
break;
case GUMSTIX_PINTO:
printf("Recognized Pinto expansion board (rev %d %s)
",
expansion_config.revision,
expansion_config.fab_revision);
MUX_GUMSTIX();
break;
case GUMSTIX_GALLOP43:
printf("Recognized Gallop43 expansion board (rev %d %s)
",
expansion_config.revision,
expansion_config.fab_revision);
MUX_GUMSTIX();
setenv("defaultdisplay", "lcd43");
setenv("expansionname", "gallop43");
break;
case GUMSTIX_ALTO35:
printf("Recognized Alto35 expansion board (rev %d %s)
",
expansion_config.revision,
expansion_config.fab_revision);
MUX_GUMSTIX();
MUX_ALTO35();
setenv("defaultdisplay", "lcd35");
setenv("expansionname", "alto35");
break;
case GUMSTIX_STAGECOACH:
printf("Recognized Stagecoach expansion board (rev %d %s)
",
expansion_config.revision,
expansion_config.fab_revision);
MUX_GUMSTIX();
break;
case GUMSTIX_THUMBO:
printf("Recognized Thumbo expansion board (rev %d %s)
",
expansion_config.revision,
expansion_config.fab_revision);
MUX_GUMSTIX();
break;
case GUMSTIX_TURTLECORE:
printf("Recognized Turtlecore expansion board (rev %d %s)
",
expansion_config.revision,
expansion_config.fab_revision);
MUX_GUMSTIX();
break;
case GUMSTIX_ARBOR43C:
printf("Recognized Arbor43C expansion board (rev %d %s)
",
expansion_config.revision,
expansion_config.fab_revision);
MUX_GUMSTIX();
MUX_ARBOR43C();
setenv("defaultdisplay", "lcd43");
break;
case ETTUS_USRP_E:
printf("Recognized Ettus Research USRP-E (rev %d %s)
",
expansion_config.revision,
expansion_config.fab_revision);
MUX_GUMSTIX();
MUX_USRP_E();
setenv("defaultdisplay", "dvi");
break;
case GUMSTIX_NO_EEPROM:
case GUMSTIX_EMPTY_EEPROM:
puts("No or empty EEPROM on expansion board
");
MUX_GUMSTIX();
setenv("expansionname", "tobi");
break;
default:
printf("Unrecognized expansion board 0x%08x
", expansion_id);
break;
}
if (expansion_config.content == 1)
setenv(expansion_config.env_var, expansion_config.env_setting);
dieid_num_r();
if (get_cpu_family() == CPU_OMAP34XX)
setenv("boardname", "overo");
else
setenv("boardname", "overo-storm");
return 0;
}
void set_muxconf_regs(void)
{
MUX_OVERO();
}
#if defined(CONFIG_CMD_NET) && !defined(CONFIG_SPL_BUILD)
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,
};
static void setup_net_chip(void)
{
struct ctrl *ctrl_base = (struct ctrl *)OMAP34XX_CTRL_BASE;
writew(readw(&ctrl_base ->gpmc_nwe) | 0x0E00, &ctrl_base->gpmc_nwe);
writew(readw(&ctrl_base->gpmc_noe) | 0x0E00, &ctrl_base->gpmc_noe);
writew(readw(&ctrl_base->gpmc_nadv_ale) | 0x0E00,
&ctrl_base->gpmc_nadv_ale);
}
static void reset_net_chip(void)
{
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:
enable_gpmc_cs_config(gpmc_lan_config, &gpmc_cfg->cs[4],
0x2B000000, GPMC_SIZE_16M);
case GUMSTIX_TOBI:
case GUMSTIX_CHESTNUT43:
case GUMSTIX_STAGECOACH:
case GUMSTIX_NO_EEPROM:
case GUMSTIX_EMPTY_EEPROM:
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_GENERIC_MMC) && !defined(CONFIG_SPL_BUILD)
int board_mmc_init(bd_t *bis)
{
return omap_mmc_init(0, 0, 0, -1, -1);
}
#endif
#if defined(CONFIG_GENERIC_MMC)
void board_mmc_power_init(void)
{
twl4030_power_mmc_init(0);
}
#endif
#if defined(CONFIG_USB_EHCI) && !defined(CONFIG_SPL_BUILD)
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)
{
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)
{
gpio_set_value(GUMSTIX_GPIO_USBH_CPEN, 0);
gpio_free(GUMSTIX_GPIO_USBH_CPEN);
return omap_ehci_hcd_stop();
}
#endif /* CONFIG_USB_EHCI */
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