blob: c5fa0e77aa2a418c53c0a314ef01b899a3738a8e (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
|
/*
* 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>
#include <mach/omap/omap4_twl6030_mmc.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);
|
