| // SPDX-License-Identifier: GPL-2.0+ | |
| /* | |
| * (C) Copyright 2008 | |
| * Grazvydas Ignotas <[email protected]> | |
| * | |
| * Derived from Beagle Board, 3430 SDP, and OMAP3EVM code by | |
| * Richard Woodruff <[email protected]> | |
| * Syed Mohammed Khasim <[email protected]> | |
| * Sunil Kumar <[email protected]> | |
| * Shashi Ranjan <[email protected]> | |
| * | |
| * (C) Copyright 2004-2008 | |
| * Texas Instruments, <www.ti.com> | |
| */ | |
| #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); | |
| 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 |