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u-boot/board/overo/overo.c
Paul Kocialkowski aac5450ea9 omap_hsmmc: Board-specific TWL4030 MMC power initializations 
Boards using the TWL4030 regulator may not all use the LDOs the same way
(e.g. MMC2 power can be controlled by another LDO than VMMC2).
This delegates TWL4030 MMC power initializations to board-specific functions,
that may still call twl4030_power_mmc_init for the default behavior.

Signed-off-by: Paul Kocialkowski <contact@paulk.fr>
Reviewed-by: Tom Rini <trini@ti.com>
[trini: Fix omap3_evm warning, add twl4030.h]
Signed-off-by: Tom Rini <trini@ti.com>
2014-12-04 21:28:15 -05:00

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/*
* 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>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#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
};
/*
* Routine: board_init
* Description: Early hardware init.
*/
int board_init(void)
{
gpmc_init(); /* in SRAM or SDRAM, finish GPMC */
/* board id for Linux */
gd->bd->bi_arch_number = MACH_TYPE_OVERO;
/* boot param addr */
gd->bd->bi_boot_params = (OMAP34XX_SDRC_CS0 + 0x100);
return 0;
}
/*
* Routine: get_board_revision
* Description: Returns the board revision
*/
int get_board_revision(void)
{
int revision;
#ifdef CONFIG_SYS_I2C_OMAP34XX
unsigned char data;
/* board revisions <= R2410 connect 4030 irq_1 to gpio112 */
/* these boards should return a revision number of 0 */
/* the code below forces a 4030 RTC irq to ensure that gpio112 is low */
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\n");
revision = -1;
}
return revision;
}
#ifdef CONFIG_SPL_BUILD
/*
* Routine: get_board_mem_timings
* Description: If we use SPL then there is no x-loader nor config header
* so we have to setup the DDR timings ourself on both banks.
*/
void get_board_mem_timings(struct board_sdrc_timings *timings)
{
timings->mr = MICRON_V_MR_165;
switch (get_board_revision()) {
case REVISION_0: /* Micron 1286MB/256MB, 1/2 banks of 128MB */
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: /* Micron 256MB/512MB, 1/2 banks of 256MB */
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: /* Hynix 256MB/512MB, 1/2 banks of 256MB */
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: /* Micron 512MB/1024MB, 1/2 banks of 512MB */
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
/*
* 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();
setenv("defaultdisplay", "dvi");
setenv("expansionname", "summit");
break;
case GUMSTIX_TOBI:
printf("Recognized Tobi expansion board (rev %d %s)\n",
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)\n",
expansion_config.revision,
expansion_config.fab_revision);
MUX_GUMSTIX();
break;
case GUMSTIX_PALO35:
printf("Recognized Palo35 expansion board (rev %d %s)\n",
expansion_config.revision,
expansion_config.fab_revision);
MUX_GUMSTIX();
setenv("defaultdisplay", "lcd35");
break;
case GUMSTIX_PALO43:
printf("Recognized Palo43 expansion board (rev %d %s)\n",
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)\n",
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)\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();
setenv("defaultdisplay", "lcd43");
setenv("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();
setenv("defaultdisplay", "lcd35");
setenv("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();
setenv("defaultdisplay", "lcd43");
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();
setenv("defaultdisplay", "dvi");
break;
case GUMSTIX_NO_EEPROM:
case GUMSTIX_EMPTY_EEPROM:
puts("No or empty EEPROM on expansion board\n");
MUX_GUMSTIX();
setenv("expansionname", "tobi");
break;
default:
printf("Unrecognized expansion board 0x%08x\n", 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;
}
/*
* Routine: set_muxconf_regs
* Description: Setting up the configuration Mux registers specific to the
* hardware. Many pins need to be moved from protect to primary
* mode.
*/
void set_muxconf_regs(void)
{
MUX_OVERO();
}
#if defined(CONFIG_CMD_NET) && !defined(CONFIG_SPL_BUILD)
/* 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_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)
{
/* 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 */
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