summaryrefslogtreecommitdiff
path: root/board/davinci/dm365evm/dm365evm.c
blob: 5fb76111b4aa9e5ddbb752b3358e41692ad21a10 (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
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
/*
 * Copyright (C) 2009 Texas Instruments Incorporated
 *
 * 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.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 */

#include <common.h>
#include <nand.h>
#include <asm/io.h>
#include <asm/arch/hardware.h>
#include <asm/arch/emif_defs.h>
#include <asm/arch/nand_defs.h>
#include <asm/arch/gpio_defs.h>
#include <netdev.h>
#include <asm/arch/davinci_misc.h>
#ifdef CONFIG_DAVINCI_MMC
#include <mmc.h>
#include <asm/arch/sdmmc_defs.h>
#endif

DECLARE_GLOBAL_DATA_PTR;

int board_init(void)
{
	gd->bd->bi_arch_number = MACH_TYPE_DAVINCI_DM365_EVM;
	gd->bd->bi_boot_params = PHYS_SDRAM_1 + 0x100;

	return 0;
}

#ifdef CONFIG_DRIVER_TI_EMAC
int board_eth_init(bd_t *bis)
{
	uint8_t eeprom_enetaddr[6];
	int i;
	struct davinci_gpio *gpio1_base =
			(struct davinci_gpio *)DAVINCI_GPIO_BANK01;

	/* Configure PINMUX 3 to enable EMAC pins */
	writel((readl(PINMUX3) | 0x1affff), PINMUX3);

	/* Configure GPIO20 as output */
	writel((readl(&gpio1_base->dir) & ~(1 << 20)), &gpio1_base->dir);

	/* Toggle GPIO 20 */
	for (i = 0; i < 20; i++) {
		/* GPIO 20 low */
		writel((readl(&gpio1_base->out_data) & ~(1 << 20)),
						&gpio1_base->out_data);

		udelay(1000);

		/* GPIO 20 high */
		writel((readl(&gpio1_base->out_data) | (1 << 20)),
						&gpio1_base->out_data);
	}

	/* Configure I2C pins so that EEPROM can be read */
	writel((readl(PINMUX3) | 0x01400000), PINMUX3);

	/* Read Ethernet MAC address from EEPROM */
	if (dvevm_read_mac_address(eeprom_enetaddr))
		davinci_sync_env_enetaddr(eeprom_enetaddr);

	davinci_emac_initialize();

	return 0;
}
#endif

#ifdef CONFIG_NAND_DAVINCI
static void nand_dm365evm_select_chip(struct mtd_info *mtd, int chip)
{
	struct nand_chip	*this = mtd->priv;
	unsigned long		wbase = (unsigned long) this->IO_ADDR_W;
	unsigned long		rbase = (unsigned long) this->IO_ADDR_R;

	if (chip == 1) {
		__set_bit(14, &wbase);
		__set_bit(14, &rbase);
	} else {
		__clear_bit(14, &wbase);
		__clear_bit(14, &rbase);
	}
	this->IO_ADDR_W = (void *)wbase;
	this->IO_ADDR_R = (void *)rbase;
}

int board_nand_init(struct nand_chip *nand)
{
	davinci_nand_init(nand);
	nand->select_chip = nand_dm365evm_select_chip;
	return 0;
}
#endif

#ifdef CONFIG_DAVINCI_MMC
static struct davinci_mmc mmc_sd0 = {
	.reg_base	= (struct davinci_mmc_regs *)DAVINCI_MMC_SD0_BASE,
	.input_clk	= 121500000,
	.host_caps	= MMC_MODE_4BIT,
	.voltages	= MMC_VDD_32_33 | MMC_VDD_33_34,
	.version	= MMC_CTLR_VERSION_2,
};

#ifdef CONFIG_DAVINCI_MMC_SD1
static struct davinci_mmc mmc_sd1 = {
	.reg_base	= (struct davinci_mmc_regs *)DAVINCI_MMC_SD1_BASE,
	.input_clk	= 121500000,
	.host_caps	= MMC_MODE_4BIT,
	.voltages	= MMC_VDD_32_33 | MMC_VDD_33_34,
	.version	= MMC_CTLR_VERSION_2,
};
#endif

int board_mmc_init(bd_t *bis)
{
	int err;

	/* Add slot-0 to mmc subsystem */
	err = davinci_mmc_init(bis, &mmc_sd0);
	if (err)
		return err;

#ifdef CONFIG_DAVINCI_MMC_SD1
#define PUPDCTL1		0x01c4007c
	/* PINMUX(4)-DAT0-3/CMD;  PINMUX(0)-CLK */
	writel((readl(PINMUX4) | 0x55400000), PINMUX4);
	writel((readl(PINMUX0) | 0x00010000), PINMUX0);

	/* Configure MMC/SD pins as pullup */
	writel((readl(PUPDCTL1) & ~0x07c0), PUPDCTL1);

	/* Add slot-1 to mmc subsystem */
	err = davinci_mmc_init(bis, &mmc_sd1);
#endif

	return err;
}
#endif