// SPDX-License-Identifier: GPL-2.0+

  /*
   * (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>

   */
  #include <common.h>

  #include <dm.h>
  #include <ns16550.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)

  static const struct ns16550_platdata pandora_serial = {
  	.base = OMAP34XX_UART3,
  	.reg_shift = 2,
  	.clock = V_NS16550_CLK,
  	.fcr = UART_FCR_DEFVAL,
  };
  
  U_BOOT_DEVICE(pandora_uart) = {
  	"ns16550_serial",
  	&pandora_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_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
  ", gpio);
  		return;
  	}
  	ret = gpio_direction_output(gpio, value);
  	if (ret != 0)
  		printf("could not set GPIO %u to %d
  ", 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_PM_RECEIVER_BB_CFG,

  		TWL4030_BB_CFG_BBCHEN | TWL4030_BB_CFG_BBSEL_3200MV |

  		TWL4030_BB_CFG_BBISEL_500UA);

  	omap_die_id_display();

  	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_MMC

  int board_mmc_init(bd_t *bis)
  {

  	return omap_mmc_init(0, 0, 0, -1, -1);

  }

  
  void board_mmc_power_init(void)
  {
  	twl4030_power_mmc_init(0);
  }

  #endif