mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-11 07:34:31 +00:00
aac5450ea9
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>
134 lines
3 KiB
C
134 lines
3 KiB
C
/*
|
|
* (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>
|
|
*
|
|
* SPDX-License-Identifier: GPL-2.0+
|
|
*/
|
|
#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_PM_RECEIVER_BB_CFG,
|
|
TWL4030_BB_CFG_BBCHEN | TWL4030_BB_CFG_BBSEL_3200MV |
|
|
TWL4030_BB_CFG_BBISEL_500UA);
|
|
|
|
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)
|
|
{
|
|
return omap_mmc_init(0, 0, 0, -1, -1);
|
|
}
|
|
|
|
void board_mmc_power_init(void)
|
|
{
|
|
twl4030_power_mmc_init(0);
|
|
}
|
|
#endif
|