C++ (Cpp) omap4_vmmc_pbias_config Exemples

Exemple #1

Fichier : omap_hsmmc.c Projet : varigit/u-boot-VAR-SOM-AMxx

unsigned char mmc_board_init(struct mmc *mmc)
{
#if defined(CONFIG_OMAP34XX)
	t2_t *t2_base = (t2_t *)T2_BASE;
	struct prcm *prcm_base = (struct prcm *)PRCM_BASE;
	u32 pbias_lite;

	pbias_lite = readl(&t2_base->pbias_lite);
	pbias_lite &= ~(PBIASLITEPWRDNZ1 | PBIASLITEPWRDNZ0);
	writel(pbias_lite, &t2_base->pbias_lite);
#endif
#if defined(CONFIG_TWL4030_POWER)
	twl4030_power_mmc_init();
	mdelay(100);	/* ramp-up delay from Linux code */
#endif
#if defined(CONFIG_OMAP34XX)
	writel(pbias_lite | PBIASLITEPWRDNZ1 |
		PBIASSPEEDCTRL0 | PBIASLITEPWRDNZ0,
		&t2_base->pbias_lite);

	writel(readl(&t2_base->devconf0) | MMCSDIO1ADPCLKISEL,
		&t2_base->devconf0);

	writel(readl(&t2_base->devconf1) | MMCSDIO2ADPCLKISEL,
		&t2_base->devconf1);

	/* Change from default of 52MHz to 26MHz if necessary */
	if (!(mmc->cfg->host_caps & MMC_MODE_HS_52MHz))
		writel(readl(&t2_base->ctl_prog_io1) & ~CTLPROGIO1SPEEDCTRL,
			&t2_base->ctl_prog_io1);

	writel(readl(&prcm_base->fclken1_core) |
		EN_MMC1 | EN_MMC2 | EN_MMC3,
		&prcm_base->fclken1_core);

	writel(readl(&prcm_base->iclken1_core) |
		EN_MMC1 | EN_MMC2 | EN_MMC3,
		&prcm_base->iclken1_core);
#endif

#if defined(CONFIG_OMAP44XX) && defined(CONFIG_TWL6030_POWER)
	/* PBIAS config needed for MMC1 only */
	if (mmc->block_dev.dev == 0)
		omap4_vmmc_pbias_config(mmc);
#endif
#if defined(CONFIG_OMAP54XX) && defined(CONFIG_PALMAS_POWER)
	if (mmc->block_dev.dev == 0)
		omap5_pbias_config(mmc);
#endif

	return 0;
}

Exemple #2

Fichier : omap_hsmmc.c Projet : CreatorDev/u-boot

static unsigned char mmc_board_init(struct mmc *mmc)
{
#if defined(CONFIG_OMAP34XX)
	t2_t *t2_base = (t2_t *)T2_BASE;
	struct prcm *prcm_base = (struct prcm *)PRCM_BASE;
	u32 pbias_lite;

	pbias_lite = readl(&t2_base->pbias_lite);
	pbias_lite &= ~(PBIASLITEPWRDNZ1 | PBIASLITEPWRDNZ0);
#ifdef CONFIG_TARGET_OMAP3_CAIRO
	/* for cairo board, we need to set up 1.8 Volt bias level on MMC1 */
	pbias_lite &= ~PBIASLITEVMODE0;
#endif
	writel(pbias_lite, &t2_base->pbias_lite);

	writel(pbias_lite | PBIASLITEPWRDNZ1 |
		PBIASSPEEDCTRL0 | PBIASLITEPWRDNZ0,
		&t2_base->pbias_lite);

	writel(readl(&t2_base->devconf0) | MMCSDIO1ADPCLKISEL,
		&t2_base->devconf0);

	writel(readl(&t2_base->devconf1) | MMCSDIO2ADPCLKISEL,
		&t2_base->devconf1);

	/* Change from default of 52MHz to 26MHz if necessary */
	if (!(mmc->cfg->host_caps & MMC_MODE_HS_52MHz))
		writel(readl(&t2_base->ctl_prog_io1) & ~CTLPROGIO1SPEEDCTRL,
			&t2_base->ctl_prog_io1);

	writel(readl(&prcm_base->fclken1_core) |
		EN_MMC1 | EN_MMC2 | EN_MMC3,
		&prcm_base->fclken1_core);

	writel(readl(&prcm_base->iclken1_core) |
		EN_MMC1 | EN_MMC2 | EN_MMC3,
		&prcm_base->iclken1_core);
#endif

#if defined(CONFIG_OMAP44XX) && defined(CONFIG_TWL6030_POWER)
	/* PBIAS config needed for MMC1 only */
	if (mmc->block_dev.dev == 0)
		omap4_vmmc_pbias_config(mmc);
#endif
#if defined(CONFIG_OMAP54XX) && defined(CONFIG_PALMAS_POWER)
	if (mmc->block_dev.dev == 0)
		omap5_pbias_config(mmc);
#endif

	return 0;
}