1 /*
2  *  (C) Copyright 2010,2011
3  *  NVIDIA Corporation <www.nvidia.com>
4  *  (C) Copyright 2011
5  *  Avionic Design GmbH <www.avionic-design.de>
6  *
7  * See file CREDITS for list of people who contributed to this
8  * project.
9  *
10  * This program is free software; you can redistribute it and/or
11  * modify it under the terms of the GNU General Public License as
12  * published by the Free Software Foundation; either version 2 of
13  * the License, or (at your option) any later version.
14  *
15  * This program is distributed in the hope that it will be useful,
16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
18  * GNU General Public License for more details.
19  *
20  * You should have received a copy of the GNU General Public License
21  * along with this program; if not, write to the Free Software
22  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
23  * MA 02111-1307 USA
24  */
25 
26 #include <common.h>
27 #include <ns16550.h>
28 #include <asm/io.h>
29 #include <asm/gpio.h>
30 #include <asm/arch/board.h>
31 #include <asm/arch/tegra2.h>
32 #include <asm/arch/sys_proto.h>
33 #include <asm/arch/clk_rst.h>
34 #include <asm/arch/clock.h>
35 #include <asm/arch/pinmux.h>
36 #include <asm/arch/uart.h>
37 #include <asm/arch/mmc.h>
38 #include "tamonten.h"
39 
40 #ifdef CONFIG_TEGRA2_MMC
41 #include <mmc.h>
42 #endif
43 
44 DECLARE_GLOBAL_DATA_PTR;
45 
46 const struct tegra2_sysinfo sysinfo = {
47 	CONFIG_TEGRA2_BOARD_STRING
48 };
49 
50 /*
51  * Routine: timer_init
52  * Description: init the timestamp and lastinc value
53  */
54 int timer_init(void)
55 {
56 	return 0;
57 }
58 
59 #ifdef CONFIG_TEGRA2_MMC
60 /*
61  * Routine: pin_mux_mmc
62  * Description: setup the pin muxes/tristate values for the SDMMC(s)
63  */
64 static void pin_mux_mmc(void)
65 {
66 	/* SDMMC4: config 3, x8 on 2nd set of pins */
67 	pinmux_set_func(PINGRP_ATB, PMUX_FUNC_SDIO4);
68 	pinmux_set_func(PINGRP_GMA, PMUX_FUNC_SDIO4);
69 	pinmux_set_func(PINGRP_GME, PMUX_FUNC_SDIO4);
70 
71 	pinmux_tristate_disable(PINGRP_ATB);
72 	pinmux_tristate_disable(PINGRP_GMA);
73 	pinmux_tristate_disable(PINGRP_GME);
74 }
75 #endif
76 
77 /*
78  * Routine: board_init
79  * Description: Early hardware init.
80  */
81 int board_init(void)
82 {
83 	clock_init();
84 	clock_verify();
85 
86 	/* boot param addr */
87 	gd->bd->bi_boot_params = (NV_PA_SDRAM_BASE + 0x100);
88 
89 	return 0;
90 }
91 
92 #ifdef CONFIG_TEGRA2_MMC
93 /* this is a weak define that we are overriding */
94 int board_mmc_init(bd_t *bd)
95 {
96 	debug("board_mmc_init called\n");
97 	/* Enable muxes, etc. for SDMMC controllers */
98 	pin_mux_mmc();
99 	gpio_config_mmc();
100 
101 	debug("board_mmc_init: init eMMC\n");
102 	/* init dev 0, eMMC chip, with 4-bit bus */
103 	tegra2_mmc_init(0, 4, -1, GPIO_PH2);
104 
105 	return 0;
106 }
107 #endif
108 
109 #ifdef CONFIG_BOARD_EARLY_INIT_F
110 int board_early_init_f(void)
111 {
112 	/* Initialize selected UARTs */
113 	board_init_uart_f();
114 	return 0;
115 }
116 #endif /* EARLY_INIT */
117