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/*
* (C) Copyright 2008
* Grazvydas Ignotas <notasas@gmail.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>
*
* 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/gpio.h>
#include <asm/arch/mmc_host_def.h>
#include <asm/arch/mux.h>
#include <asm/arch/gpio.h>
#include <asm/arch/sys_proto.h>
#include <asm/mach-types.h>
#include "pandora.h"
DECLARE_GLOBAL_DATA_PTR;
#define TWL4030_BB_CFG_BBCHEN (1 << 4)
#define TWL4030_BB_CFG_BBSEL_3200MV (3 << 2)
#define TWL4030_BB_CFG_BBISEL_500UA 2
#define CONTROL_WKUP_CTRL 0x48002a5c
#define GPIO_IO_PWRDNZ (1 << 6)
#define PBIASLITEVMODE1 (1 << 8)
/*
* 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_OMAP3_PANDORA;
/* boot param addr */
gd->bd->bi_boot_params = (OMAP34XX_SDRC_CS0 + 0x100);
return 0;
}
static void set_output_gpio(unsigned int gpio, int value)
{
int ret;
ret = gpio_request(gpio, "");
if (ret != 0) {
printf("could not request GPIO %u\n", gpio);
return;
}
ret = gpio_direction_output(gpio, value);
if (ret != 0)
printf("could not set GPIO %u to %d\n", gpio, value);
}
/*
* Routine: misc_init_r
* Description: Configure board specific parts
*/
int misc_init_r(void)
{
t2_t *t2_base = (t2_t *)T2_BASE;
u32 pbias_lite;
twl4030_led_init(TWL4030_LED_LEDEN_LEDBON);
/* set up dual-voltage GPIOs to 1.8V */
pbias_lite = readl(&t2_base->pbias_lite);
pbias_lite &= ~PBIASLITEVMODE1;
pbias_lite |= PBIASLITEPWRDNZ1;
writel(pbias_lite, &t2_base->pbias_lite);
if (get_cpu_family() == CPU_OMAP36XX)
writel(readl(CONTROL_WKUP_CTRL) | GPIO_IO_PWRDNZ,
CONTROL_WKUP_CTRL);
/* make sure audio and BT chips are in powerdown state */
set_output_gpio(14, 0);
set_output_gpio(15, 0);
set_output_gpio(118, 0);
/* enable USB supply */
set_output_gpio(164, 1);
/* wifi needs a short pulse to enter powersave state */
set_output_gpio(23, 1);
udelay(5000);
gpio_direction_output(23, 0);
/* Enable battery backup capacitor (3.2V, 0.5mA charge current) */
twl4030_i2c_write_u8(TWL4030_CHIP_PM_RECEIVER,
TWL4030_BB_CFG_BBCHEN | TWL4030_BB_CFG_BBSEL_3200MV |
TWL4030_BB_CFG_BBISEL_500UA, TWL4030_PM_RECEIVER_BB_CFG);
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_PANDORA();
if (get_cpu_family() == CPU_OMAP36XX) {
MUX_PANDORA_3730();
}
}
#ifdef CONFIG_GENERIC_MMC
int board_mmc_init(bd_t *bis)
{
omap_mmc_init(0, 0, 0);
return 0;
}
#endif
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