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/*
* (C) Copyright 2004-2008
* Texas Instruments, <www.ti.com>
*
* Author :
* Sunil Kumar <sunilsaini05@gmail.com>
* Shashi Ranjan <shashiranjanmca05@gmail.com>
*
* Derived from Beagle Board and 3430 SDP code by
* Richard Woodruff <r-woodruff2@ti.com>
* Syed Mohammed Khasim <khasim@ti.com>
*
*
* See file CREDITS for list of people who contributed to this
* project.
*
* 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; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
#include <common.h>
#include <twl4030.h>
#include <asm/io.h>
#include <asm/arch/mmc_host_def.h>
#include <asm/arch/mux.h>
#include <asm/arch/sys_proto.h>
#include <asm/arch/gpio.h>
#include <asm/mach-types.h>
#include "gta04.h"
#if 1 /* testing tool; you can call notify() anywhere even before initialization to see how far the code comes */
/******************************************************************************
* Routine: delay
* Description: spinning delay to use before udelay works
*****************************************************************************/
static inline void mydelay(unsigned long loops)
{
__asm__ volatile ("1:\n" "subs %0, %1, #1\n"
"bne 1b":"=r" (loops):"0"(loops));
}
static inline void myudelay(unsigned long us)
{
mydelay(us * 200); /* approximate */
}
#define BLON() MUX_VAL(CP(GPMC_NCS6), (IEN | PTU | EN | M4)) /*GPT_PWM11/GPIO57*/
#define BLOFF() MUX_VAL(CP(GPMC_NCS6), (IEN | PTD | EN | M4)) /*GPT_PWM11/GPIO57*/
void notify(int number)
{ // flash LCD backlight
BLOFF();
myudelay(200*1000);
BLON();
myudelay(50*1000); // flash
BLOFF();
myudelay(1500*1000);
}
#endif
/*
* Routine: board_init
* Description: Early hardware init.
*/
int board_init(void)
{
DECLARE_GLOBAL_DATA_PTR;
gpmc_init(); /* in SRAM or SDRAM, finish GPMC */
/* board id for Linux */
gd->bd->bi_arch_number = MACH_TYPE_GTA04;
/* boot param addr */
gd->bd->bi_boot_params = (OMAP34XX_SDRC_CS0 + 0x100);
return 0;
}
/*
* Routine: get_board_revision
* Description: Detect if we are running on a Beagle revision Ax/Bx,
* C1/2/3, C4 or xM. This can be done by reading
* the level of GPIO173, GPIO172 and GPIO171. This should
* result in
* GPIO173, GPIO172, GPIO171: 1 1 1 => Ax/Bx
* GPIO173, GPIO172, GPIO171: 1 1 0 => C1/2/3
* GPIO173, GPIO172, GPIO171: 1 0 1 => C4
* GPIO173, GPIO172, GPIO171: 0 0 0 => xM
*/
int get_board_revision(void)
{
#ifdef CONFIG_OMAP3_GTA04
return 6; // configure pinmux for C1/2/3
#else
int revision;
if (!omap_request_gpio(171) &&
!omap_request_gpio(172) &&
!omap_request_gpio(173)) {
omap_set_gpio_direction(171, 1);
omap_set_gpio_direction(172, 1);
omap_set_gpio_direction(173, 1);
revision = omap_get_gpio_datain(173) << 2 |
omap_get_gpio_datain(172) << 1 |
omap_get_gpio_datain(171);
omap_free_gpio(171);
omap_free_gpio(172);
omap_free_gpio(173);
} else {
printf("Error: unable to acquire board revision GPIOs\n");
revision = -1;
}
return revision;
#endif
}
/*
* Routine: misc_init_r
* Description: Configure board specific parts
*/
#ifdef CONFIG_OMAP3_GTA04
#define TCA6507_BUS (2-1) // I2C2
#define TCA6507_ADDRESS 0x45
/* register numbers */
#define TCA6507_SELECT0 0
#define TCA6507_SELECT1 1
#define TCA6507_SELECT2 2
#endif
int misc_init_r(void)
{
struct gpio *gpio5_base = (struct gpio *)OMAP34XX_GPIO5_BASE;
struct gpio *gpio6_base = (struct gpio *)OMAP34XX_GPIO6_BASE;
#ifdef CONFIG_OMAP3_GTA04
/* ITG3200 & HMC5883L VAUX2 = 2.8V */
twl4030_pmrecv_vsel_cfg(TWL4030_PM_RECEIVER_VAUX2_DEDICATED,
/*TWL4030_PM_RECEIVER_VAUX2_VSEL_28*/ 0x09,
TWL4030_PM_RECEIVER_VAUX2_DEV_GRP,
TWL4030_PM_RECEIVER_DEV_GRP_P1);
/* Camera VAUX3 = 2.5V */
twl4030_pmrecv_vsel_cfg(TWL4030_PM_RECEIVER_VAUX3_DEDICATED,
/*TWL4030_PM_RECEIVER_VAUX3_VSEL_25*/ 0x02,
TWL4030_PM_RECEIVER_VAUX3_DEV_GRP,
TWL4030_PM_RECEIVER_DEV_GRP_P1);
i2c_set_bus_num(TCA6507_BUS); // write I2C2
i2c_reg_write(TCA6507_ADDRESS, TCA6507_SELECT0, 0);
i2c_reg_write(TCA6507_ADDRESS, TCA6507_SELECT1, 0);
i2c_reg_write(TCA6507_ADDRESS, TCA6507_SELECT2, 0x40); // pull down reset for WLAN&BT chip
i2c_set_bus_num(0); // write I2C1
/* Bluetooth VAUX4 = 3.3V -- CHECKME: 3.3 V is not officially supported! We use 0x09 = 2.8V here*/
twl4030_pmrecv_vsel_cfg(TWL4030_PM_RECEIVER_VAUX4_DEDICATED,
/*TWL4030_PM_RECEIVER_VAUX4_VSEL_33*/ 0x09,
TWL4030_PM_RECEIVER_VAUX4_DEV_GRP,
TWL4030_PM_RECEIVER_DEV_GRP_P1);
#else
switch (get_board_revision()) {
case REVISION_AXBX:
// printf("Beagle Rev Ax/Bx\n");
// setenv("beaglerev", "AxBx");
setenv("mpurate", "600");
break;
case REVISION_CX:
// printf("Beagle Rev C1/C2/C3\n");
// setenv("beaglerev", "Cx");
setenv("mpurate", "600");
MUX_BEAGLE_C();
break;
case REVISION_C4:
// printf("Beagle Rev C4\n");
// setenv("beaglerev", "C4");
setenv("mpurate", "720");
MUX_BEAGLE_C();
/* Set VAUX2 to 1.8V for EHCI PHY */
twl4030_pmrecv_vsel_cfg(TWL4030_PM_RECEIVER_VAUX2_DEDICATED,
TWL4030_PM_RECEIVER_VAUX2_VSEL_18,
TWL4030_PM_RECEIVER_VAUX2_DEV_GRP,
TWL4030_PM_RECEIVER_DEV_GRP_P1);
break;
case REVISION_XM:
// printf("Beagle xM Rev A\n");
// setenv("beaglerev", "xMA");
setenv("mpurate", "1000");
MUX_BEAGLE_XM();
/* Set VAUX2 to 1.8V for EHCI PHY */
twl4030_pmrecv_vsel_cfg(TWL4030_PM_RECEIVER_VAUX2_DEDICATED,
TWL4030_PM_RECEIVER_VAUX2_VSEL_18,
TWL4030_PM_RECEIVER_VAUX2_DEV_GRP,
TWL4030_PM_RECEIVER_DEV_GRP_P1);
break;
default:
printf("Beagle unknown 0x%02x\n", get_board_revision());
}
#endif
twl4030_power_init();
#ifdef CONFIG_OMAP3_GTA04
// we have no LEDs on TPS on GTA04
// but a power on/off button (8 seconds)
twl4030_power_reset_init();
#else
// LEDs on BeagleBoard
twl4030_led_init(TWL4030_LED_LEDEN_LEDAON | TWL4030_LED_LEDEN_LEDBON);
#endif
// FIXME: check this!!!
/* Configure GPIOs to output */
writel(~(GPIO23 | GPIO10 | GPIO8 | GPIO2 | GPIO1), &gpio6_base->oe);
writel(~(GPIO31 | GPIO30 | GPIO29 | GPIO28 | GPIO22 | GPIO21 |
GPIO15 | GPIO14 | GPIO13 | GPIO12), &gpio5_base->oe);
/* Set GPIOs */
writel(GPIO23 | GPIO10 | GPIO8 | GPIO2 | GPIO1,
&gpio6_base->setdataout);
writel(GPIO31 | GPIO30 | GPIO29 | GPIO28 | GPIO22 | GPIO21 |
GPIO15 | GPIO14 | GPIO13 | GPIO12, &gpio5_base->setdataout);
dieid_num_r();
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_BEAGLE();
MUX_BEAGLE_GTA04();
}
#ifdef CONFIG_GENERIC_MMC
int board_mmc_init(bd_t *bis)
{
omap_mmc_init(0);
return 0;
}
#endif
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