58 lines
1.7 KiB
C
58 lines
1.7 KiB
C
/*
|
|
* Copyright (C) 2011 Alexander Aring <a.aring@phytec.de
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public License as
|
|
* published by the Free Software Foundation; either version 2 of
|
|
* the License, or (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <io.h>
|
|
|
|
#include <mfd/twl6030.h>
|
|
|
|
/* MMC voltage */
|
|
#define OMAP4_CONTROL_PBIASLITE 0x4A100600
|
|
#define OMAP4_MMC1_PBIASLITE_VMODE (1<<21)
|
|
#define OMAP4_MMC1_PBIASLITE_PWRDNZ (1<<22)
|
|
#define OMAP4_MMC1_PWRDNZ (1<<26)
|
|
|
|
static void twl6030_mci_write(u8 address, u8 data)
|
|
{
|
|
int ret;
|
|
struct twl6030 *twl6030 = twl6030_get();
|
|
|
|
ret = twl6030_reg_write(twl6030, address, data);
|
|
if (ret != 0)
|
|
printf("TWL6030 Write[0x%x] Error %d\n", address, ret);
|
|
}
|
|
|
|
void set_up_mmc_voltage_omap4(void)
|
|
{
|
|
u32 value;
|
|
|
|
value = readl(OMAP4_CONTROL_PBIASLITE);
|
|
value &= ~(OMAP4_MMC1_PBIASLITE_PWRDNZ | OMAP4_MMC1_PWRDNZ);
|
|
writel(value, OMAP4_CONTROL_PBIASLITE);
|
|
|
|
twl6030_mci_write(TWL6030_PMCS_VMMC_CFG_VOLTAGE,
|
|
TWL6030_VMMC_WR_S |
|
|
TWL6030_VMMC_VSEL_0 | TWL6030_VMMC_VSEL_2 |
|
|
TWL6030_VMMC_VSEL_4);
|
|
twl6030_mci_write(TWL6030_PMCS_VMMC_CFG_STATE,
|
|
TWL6030_VMMC_STATE0 | TWL6030_VMMC_GRP_APP);
|
|
|
|
value = readl(OMAP4_CONTROL_PBIASLITE);
|
|
value |= (OMAP4_MMC1_PBIASLITE_VMODE | OMAP4_MMC1_PBIASLITE_PWRDNZ |
|
|
OMAP4_MMC1_PWRDNZ);
|
|
writel(value, OMAP4_CONTROL_PBIASLITE);
|
|
}
|
|
EXPORT_SYMBOL(set_up_mmc_voltage_omap4);
|