Exemple #1
0
void fill_lb_gpios(struct lb_gpios *gpios)
{
	struct exynos5_gpio_part1 *gpio_pt1;
	struct exynos5_gpio_part2 *gpio_pt2;

	gpios->size = sizeof(*gpios) + (GPIO_COUNT * sizeof(struct lb_gpio));
	gpios->count = GPIO_COUNT;

	gpio_pt1 = (struct exynos5_gpio_part1 *)EXYNOS5_GPIO_PART1_BASE;
	gpio_pt2 = (struct exynos5_gpio_part2 *)EXYNOS5_GPIO_PART2_BASE;

	/* Write Protect: active Low */
	gpios->gpios[0].port = EXYNOS5_GPD1;
	gpios->gpios[0].polarity = ACTIVE_LOW;
	gpios->gpios[0].value = s5p_gpio_get_value(&gpio_pt1->d1, WP_GPIO);
	strncpy((char *)gpios->gpios[0].name,"write protect",
							GPIO_MAX_NAME_LENGTH);

	/* Recovery: active high */
	gpios->gpios[1].port = EXYNOS5_GPY1;
	gpios->gpios[1].polarity = ACTIVE_HIGH;
	gpios->gpios[2].value = s5p_gpio_get_value(&gpio_pt1->y1, FORCE_RECOVERY_MODE);
	strncpy((char *)gpios->gpios[1].name,"recovery", GPIO_MAX_NAME_LENGTH);

	/* Lid: the "switch" comes from the EC */
	gpios->gpios[2].port = EXYNOS5_GPX3;
	gpios->gpios[2].polarity = ACTIVE_LOW;
	gpios->gpios[2].value = s5p_gpio_get_value(&gpio_pt2->x3, LID_OPEN);
	strncpy((char *)gpios->gpios[2].name,"lid", GPIO_MAX_NAME_LENGTH);

	/* Power: virtual GPIO active low */
	gpios->gpios[3].port = -1;
	gpios->gpios[3].polarity = ACTIVE_LOW;
	gpios->gpios[3].value = 1;
	strncpy((char *)gpios->gpios[3].name,"power", GPIO_MAX_NAME_LENGTH);

	/* Developer: virtual GPIO active high */
	gpios->gpios[4].port = -1;
	gpios->gpios[4].polarity = ACTIVE_HIGH;
	gpios->gpios[4].value = 0;
	strncpy((char *)gpios->gpios[4].name,"developer",
							GPIO_MAX_NAME_LENGTH);

	/* Was VGA Option ROM loaded? */
	gpios->gpios[5].port = -1; /* Indicate that this is a pseudo GPIO */
	gpios->gpios[5].polarity = ACTIVE_HIGH;
	gpios->gpios[5].value = 0;
	strncpy((char *)gpios->gpios[5].name,"oprom", GPIO_MAX_NAME_LENGTH);

	printk(BIOS_ERR, "Added %d GPIOS size %d\n", GPIO_COUNT, gpios->size);

}
Exemple #2
0
static void check_hw_revision(void)
{
	int modelrev = 0;
	int i;

	gpio2 = (struct exynos4x12_gpio_part2 *)samsung_get_base_gpio_part2();

	/*
	 * GPM1[1:0]: MODEL_REV[1:0]
	 * Don't set as pull-none for these N/C pin.
	 * TRM say that it may cause unexcepted state and leakage current.
	 * and pull-none is only for output function.
	 */
	for (i = 0; i < 2; i++)
		s5p_gpio_cfg_pin(&gpio2->m1, i, GPIO_INPUT);

	/* GPM1[5:2]: HW_REV[3:0] */
	for (i = 2; i < 6; i++) {
		s5p_gpio_cfg_pin(&gpio2->m1, i, GPIO_INPUT);
		s5p_gpio_set_pull(&gpio2->m1, i, GPIO_PULL_NONE);
	}

	/* GPM1[1:0]: MODEL_REV[1:0] */
	for (i = 0; i < 2; i++)
		modelrev |= (s5p_gpio_get_value(&gpio2->m1, i) << i);

	/* board_rev[15:8] = model */
	board_rev = modelrev << 8;
}
Exemple #3
0
int board_mmc_init(bd_t *bis)
{
	int i, ret, ret_sd = 0;

	/* MASSMEMORY_EN: XMSMDATA7: GPJ2[7] output high */
	s5p_gpio_direction_output(&s5pc110_gpio->j2, 7, 1);

	/*
	 * MMC0 GPIO
	 * GPG0[0]	SD_0_CLK
	 * GPG0[1]	SD_0_CMD
	 * GPG0[2]	SD_0_CDn	-> Not used
	 * GPG0[3:6]	SD_0_DATA[0:3]
	 */
	for (i = 0; i < 7; i++) {
		if (i == 2)
			continue;
		/* GPG0[0:6] special function 2 */
		s5p_gpio_cfg_pin(&s5pc110_gpio->g0, i, 0x2);
		/* GPG0[0:6] pull disable */
		s5p_gpio_set_pull(&s5pc110_gpio->g0, i, GPIO_PULL_NONE);
		/* GPG0[0:6] drv 4x */
		s5p_gpio_set_drv(&s5pc110_gpio->g0, i, GPIO_DRV_4X);
	}

	ret = s5p_mmc_init(0, 4);
	if (ret)
		error("MMC: Failed to init MMC:0.\n");

	/*
	 * SD card (T_FLASH) detect and init
	 * T_FLASH_DETECT: EINT28: GPH3[4] input mode
	 */
	s5p_gpio_cfg_pin(&s5pc110_gpio->h3, 4, GPIO_INPUT);
	s5p_gpio_set_pull(&s5pc110_gpio->h3, 4, GPIO_PULL_UP);

	if (!s5p_gpio_get_value(&s5pc110_gpio->h3, 4)) {
		for (i = 0; i < 7; i++) {
			if (i == 2)
				continue;

			/* GPG2[0:6] special function 2 */
			s5p_gpio_cfg_pin(&s5pc110_gpio->g2, i, 0x2);
			/* GPG2[0:6] pull disable */
			s5p_gpio_set_pull(&s5pc110_gpio->g2, i, GPIO_PULL_NONE);
			/* GPG2[0:6] drv 4x */
			s5p_gpio_set_drv(&s5pc110_gpio->g2, i, GPIO_DRV_4X);
		}

		ret_sd = s5p_mmc_init(2, 4);
		if (ret_sd)
			error("MMC: Failed to init SD card (MMC:2).\n");
	}

	return ret & ret_sd;
}
Exemple #4
0
int board_mmc_init(bd_t *bis)
{
	int err;

	switch (get_hwrev()) {
	case 0:
		/*
		 * Set the low to enable LDO_EN
		 * But when you use the test board for eMMC booting
		 * you should set it HIGH since it removes the inverter
		 */
		/* MASSMEMORY_EN: XMDMDATA_6: GPE3[6] */
		s5p_gpio_direction_output(&gpio1->e3, 6, 0);
		break;
	default:
		/*
		 * Default reset state is High and there's no inverter
		 * But set it as HIGH to ensure
		 */
		/* MASSMEMORY_EN: XMDMADDR_3: GPE1[3] */
		s5p_gpio_direction_output(&gpio1->e1, 3, 1);
		break;
	}

	/*
	 * MMC device init
	 * mmc0	 : eMMC (8-bit buswidth)
	 * mmc2	 : SD card (4-bit buswidth)
	 */
	err = exynos_pinmux_config(PERIPH_ID_SDMMC0, PINMUX_FLAG_8BIT_MODE);
	if (err)
		debug("SDMMC0 not configured\n");
	else
		err = s5p_mmc_init(0, 8);

	/* T-flash detect */
	s5p_gpio_cfg_pin(&gpio2->x3, 4, 0xf);
	s5p_gpio_set_pull(&gpio2->x3, 4, GPIO_PULL_UP);

	/*
	 * Check the T-flash  detect pin
	 * GPX3[4] T-flash detect pin
	 */
	if (!s5p_gpio_get_value(&gpio2->x3, 4)) {
		err = exynos_pinmux_config(PERIPH_ID_SDMMC2, PINMUX_FLAG_NONE);
		if (err)
			debug("SDMMC2 not configured\n");
		else
			err = s5p_mmc_init(2, 4);
	}

	return err;

}
Exemple #5
0
int board_mmc_init(bd_t *bis)
{
	struct exynos4_gpio_part2 *gpio =
		(struct exynos4_gpio_part2 *)samsung_get_base_gpio_part2();
	int err;

	/* eMMC_EN: SD_0_CDn: GPK0[2] Output High */
	s5p_gpio_direction_output(&gpio->k0, 2, 1);
	s5p_gpio_set_pull(&gpio->k0, 2, GPIO_PULL_NONE);

	/*
	 * MMC device init
	 * mmc0	 : eMMC (8-bit buswidth)
	 * mmc2	 : SD card (4-bit buswidth)
	 */
	err = exynos_pinmux_config(PERIPH_ID_SDMMC0, PINMUX_FLAG_8BIT_MODE);
	if (err)
		debug("SDMMC0 not configured\n");
	else
		err = s5p_mmc_init(0, 8);

	/* T-flash detect */
	s5p_gpio_cfg_pin(&gpio->x3, 4, 0xf);
	s5p_gpio_set_pull(&gpio->x3, 4, GPIO_PULL_UP);

	/*
	 * Check the T-flash  detect pin
	 * GPX3[4] T-flash detect pin
	 */
	if (!s5p_gpio_get_value(&gpio->x3, 4)) {
		err = exynos_pinmux_config(PERIPH_ID_SDMMC2, PINMUX_FLAG_NONE);
		if (err)
			debug("SDMMC2 not configured\n");
		else
			err = s5p_mmc_init(2, 4);
	}

	return err;
}
Exemple #6
0
static unsigned int get_hw_revision(void)
{
	struct exynos4_gpio_part1 *gpio =
		(struct exynos4_gpio_part1 *)samsung_get_base_gpio_part1();
	int hwrev = 0;
	int i;

	/* hw_rev[3:0] == GPE1[3:0] */
	for (i = 0; i < 4; i++) {
		s5p_gpio_cfg_pin(&gpio->e1, i, GPIO_INPUT);
		s5p_gpio_set_pull(&gpio->e1, i, GPIO_PULL_NONE);
	}

	udelay(1);

	for (i = 0; i < 4; i++)
		hwrev |= (s5p_gpio_get_value(&gpio->e1, i) << i);

	debug("hwrev 0x%x\n", hwrev);

	return hwrev;
}
Exemple #7
0
int gpio_get_value(unsigned gpio)
{
	return (int) s5p_gpio_get_value(s5p_gpio_get_bank(gpio),
				       s5p_gpio_get_pin(gpio));
}
Exemple #8
0
int gpio_get_value(int nr)
{
	return (int) s5p_gpio_get_value(s5p_gpio_get_bank(nr),
				       s5p_gpio_get_pin(nr));
}
Exemple #9
0
/* read GPIO IN value of pin 'gpio' */
static int exynos_gpio_get_value(struct udevice *dev, unsigned offset)
{
	struct exynos_bank_info *state = dev_get_priv(dev);

	return s5p_gpio_get_value(state->bank, offset);
}
Exemple #10
0
int board_mmc_init(bd_t *bis)
{
	int i, err;

	switch (get_hwrev()) {
	case 0:
		/*
		 * Set the low to enable LDO_EN
		 * But when you use the test board for eMMC booting
		 * you should set it HIGH since it removes the inverter
		 */
		/* MASSMEMORY_EN: XMDMDATA_6: GPE3[6] */
		s5p_gpio_direction_output(&gpio1->e3, 6, 0);
		break;
	default:
		/*
		 * Default reset state is High and there's no inverter
		 * But set it as HIGH to ensure
		 */
		/* MASSMEMORY_EN: XMDMADDR_3: GPE1[3] */
		s5p_gpio_direction_output(&gpio1->e1, 3, 1);
		break;
	}

	/*
	 * eMMC GPIO:
	 * SDR 8-bit@48MHz at MMC0
	 * GPK0[0]	SD_0_CLK(2)
	 * GPK0[1]	SD_0_CMD(2)
	 * GPK0[2]	SD_0_CDn	-> Not used
	 * GPK0[3:6]	SD_0_DATA[0:3](2)
	 * GPK1[3:6]	SD_0_DATA[0:3](3)
	 *
	 * DDR 4-bit@26MHz at MMC4
	 * GPK0[0]	SD_4_CLK(3)
	 * GPK0[1]	SD_4_CMD(3)
	 * GPK0[2]	SD_4_CDn	-> Not used
	 * GPK0[3:6]	SD_4_DATA[0:3](3)
	 * GPK1[3:6]	SD_4_DATA[4:7](4)
	 */
	for (i = 0; i < 7; i++) {
		if (i == 2)
			continue;
		/* GPK0[0:6] special function 2 */
		s5p_gpio_cfg_pin(&gpio2->k0, i, 0x2);
		/* GPK0[0:6] pull disable */
		s5p_gpio_set_pull(&gpio2->k0, i, GPIO_PULL_NONE);
		/* GPK0[0:6] drv 4x */
		s5p_gpio_set_drv(&gpio2->k0, i, GPIO_DRV_4X);
	}

	for (i = 3; i < 7; i++) {
		/* GPK1[3:6] special function 3 */
		s5p_gpio_cfg_pin(&gpio2->k1, i, 0x3);
		/* GPK1[3:6] pull disable */
		s5p_gpio_set_pull(&gpio2->k1, i, GPIO_PULL_NONE);
		/* GPK1[3:6] drv 4x */
		s5p_gpio_set_drv(&gpio2->k1, i, GPIO_DRV_4X);
	}

	/* T-flash detect */
	s5p_gpio_cfg_pin(&gpio2->x3, 4, 0xf);
	s5p_gpio_set_pull(&gpio2->x3, 4, GPIO_PULL_UP);

	/*
	 * MMC device init
	 * mmc0	 : eMMC (8-bit buswidth)
	 * mmc2	 : SD card (4-bit buswidth)
	 */
	err = s5p_mmc_init(0, 8);

	/*
	 * Check the T-flash  detect pin
	 * GPX3[4] T-flash detect pin
	 */
	if (!s5p_gpio_get_value(&gpio2->x3, 4)) {
		/*
		 * SD card GPIO:
		 * GPK2[0]	SD_2_CLK(2)
		 * GPK2[1]	SD_2_CMD(2)
		 * GPK2[2]	SD_2_CDn	-> Not used
		 * GPK2[3:6]	SD_2_DATA[0:3](2)
		 */
		for (i = 0; i < 7; i++) {
			if (i == 2)
				continue;
			/* GPK2[0:6] special function 2 */
			s5p_gpio_cfg_pin(&gpio2->k2, i, 0x2);
			/* GPK2[0:6] pull disable */
			s5p_gpio_set_pull(&gpio2->k2, i, GPIO_PULL_NONE);
			/* GPK2[0:6] drv 4x */
			s5p_gpio_set_drv(&gpio2->k2, i, GPIO_DRV_4X);
		}
		err = s5p_mmc_init(2, 4);
	}

	return err;

}