diff options
Diffstat (limited to 'roms/u-boot/board/pandora/pandora.c')
| -rw-r--r-- | roms/u-boot/board/pandora/pandora.c | 129 |
1 files changed, 129 insertions, 0 deletions
diff --git a/roms/u-boot/board/pandora/pandora.c b/roms/u-boot/board/pandora/pandora.c new file mode 100644 index 00000000..146dcea4 --- /dev/null +++ b/roms/u-boot/board/pandora/pandora.c @@ -0,0 +1,129 @@ +/* + * (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); +} +#endif |