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ARM: tegra: pinmux naming consistency fixes
[karo-tx-uboot.git] / board / nvidia / cardhu / cardhu.c
1 /*
2  *  (C) Copyright 2010-2013
3  *  NVIDIA Corporation <www.nvidia.com>
4  *
5  * SPDX-License-Identifier:     GPL-2.0+
6  */
7
8 #include <common.h>
9 #include <asm/arch/pinmux.h>
10 #include <asm/arch/gp_padctrl.h>
11 #include "pinmux-config-cardhu.h"
12 #include <i2c.h>
13
14 #define PMU_I2C_ADDRESS         0x2D
15 #define MAX_I2C_RETRY           3
16
17 /*
18  * Routine: pinmux_init
19  * Description: Do individual peripheral pinmux configs
20  */
21 void pinmux_init(void)
22 {
23         pinmux_config_pingrp_table(tegra3_pinmux_common,
24                 ARRAY_SIZE(tegra3_pinmux_common));
25
26         pinmux_config_pingrp_table(unused_pins_lowpower,
27                 ARRAY_SIZE(unused_pins_lowpower));
28
29         /* Initialize any non-default pad configs (APB_MISC_GP regs) */
30         pinmux_config_drvgrp_table(cardhu_padctrl, ARRAY_SIZE(cardhu_padctrl));
31 }
32
33 #if defined(CONFIG_TEGRA_MMC)
34 /*
35  * Do I2C/PMU writes to bring up SD card bus power
36  *
37  */
38 void board_sdmmc_voltage_init(void)
39 {
40         uchar reg, data_buffer[1];
41         int i;
42
43         i2c_set_bus_num(0);     /* PMU is on bus 0 */
44
45         /* TPS659110: LDO5_REG = 3.3v, ACTIVE to SDMMC1 */
46         data_buffer[0] = 0x65;
47         reg = 0x32;
48
49         for (i = 0; i < MAX_I2C_RETRY; ++i) {
50                 if (i2c_write(PMU_I2C_ADDRESS, reg, 1, data_buffer, 1))
51                         udelay(100);
52         }
53
54         /* TPS659110: GPIO7_REG = PDEN, output a 1 to EN_3V3_SYS */
55         data_buffer[0] = 0x09;
56         reg = 0x67;
57
58         for (i = 0; i < MAX_I2C_RETRY; ++i) {
59                 if (i2c_write(PMU_I2C_ADDRESS, reg, 1, data_buffer, 1))
60                         udelay(100);
61         }
62 }
63
64 /*
65  * Routine: pin_mux_mmc
66  * Description: setup the MMC muxes, power rails, etc.
67  */
68 void pin_mux_mmc(void)
69 {
70         /*
71          * NOTE: We don't do mmc-specific pin muxes here.
72          * They were done globally in pinmux_init().
73          */
74
75         /* Bring up the SDIO1 power rail */
76         board_sdmmc_voltage_init();
77 }
78 #endif  /* MMC */