aboutsummaryrefslogtreecommitdiffstats
path: root/arch/arm/mach-kirkwood/openrd-setup.c
blob: 5660ca6c3d888ec6384e74c6b9eac7aee4439971 (plain) (blame)
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
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
/*
 * arch/arm/mach-kirkwood/openrd-setup.c
 *
 * Marvell OpenRD (Base|Client|Ultimate) Board Setup
 *
 * This file is licensed under the terms of the GNU General Public
 * License version 2.  This program is licensed "as is" without any
 * warranty of any kind, whether express or implied.
 */

#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/mtd/nand.h>
#include <linux/mtd/partitions.h>
#include <linux/ata_platform.h>
#include <linux/mv643xx_eth.h>
#include <linux/i2c.h>
#include <linux/gpio.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <mach/kirkwood.h>
#include <plat/mvsdio.h>
#include "common.h"
#include "mpp.h"

static struct mtd_partition openrd_nand_parts[] = {
	{
		.name		= "u-boot",
		.offset		= 0,
		.size		= SZ_1M,
		.mask_flags	= MTD_WRITEABLE
	}, {
		.name		= "uImage",
		.offset		= MTDPART_OFS_NXTBLK,
		.size		= SZ_4M
	}, {
		.name		= "root",
		.offset		= MTDPART_OFS_NXTBLK,
		.size		= MTDPART_SIZ_FULL
	},
};

static struct mv643xx_eth_platform_data openrd_ge00_data = {
	.phy_addr	= MV643XX_ETH_PHY_ADDR(8),
};

static struct mv643xx_eth_platform_data openrd_ge01_data = {
	.phy_addr	= MV643XX_ETH_PHY_ADDR(24),
};

static struct mv_sata_platform_data openrd_sata_data = {
	.n_ports	= 2,
};

static struct mvsdio_platform_data openrd_mvsdio_data = {
	.gpio_card_detect = 29,	/* MPP29 used as SD card detect */
};

static unsigned int openrd_mpp_config[] __initdata = {
	MPP12_SD_CLK,
	MPP13_SD_CMD,
	MPP14_SD_D0,
	MPP15_SD_D1,
	MPP16_SD_D2,
	MPP17_SD_D3,
	MPP28_GPIO,
	MPP29_GPIO,
	MPP34_GPIO,
	0
};

/* Configure MPP for UART1 */
static unsigned int openrd_uart1_mpp_config[] __initdata = {
	MPP13_UART1_TXD,
	MPP14_UART1_RXD,
	0
};

static struct i2c_board_info i2c_board_info[] __initdata = {
	{
		I2C_BOARD_INFO("cs42l51", 0x4a),
	},
};

static int __initdata uart1;

static int __init sd_uart_selection(char *str)
{
	uart1 = -EINVAL;

	/* Default is SD. Change if required, for UART */
	if (!str)
		return 0;

	if (!strncmp(str, "232", 3)) {
		uart1 = 232;
	} else if (!strncmp(str, "485", 3)) {
		/* OpenRD-Base doesn't have RS485. Treat is as an
		 * unknown argument & just have default setting -
		 * which is SD */
		if (machine_is_openrd_base()) {
			uart1 = -ENODEV;
			return 1;
		}

		uart1 = 485;
	}
	return 1;
}
/* Parse boot_command_line string kw_openrd_init_uart1=232/485 */
__setup("kw_openrd_init_uart1=", sd_uart_selection);

static int __init uart1_mpp_config(void)
{
	kirkwood_mpp_conf(openrd_uart1_mpp_config);

	if (gpio_request(34, "SD_UART1_SEL")) {
		printk(KERN_ERR "GPIO request failed for SD/UART1 selection"
				", gpio: 34\n");
		return -EIO;
	}

	if (gpio_request(28, "RS232_RS485_SEL")) {
		printk(KERN_ERR "GPIO request failed for RS232/RS485 selection"
				", gpio# 28\n");
		gpio_free(34);
		return -EIO;
	}

	/* Select UART1
	 * Pin # 34: 0 => UART1, 1 => SD */
	gpio_direction_output(34, 0);

	/* Select RS232 OR RS485
	 * Pin # 28: 0 => RS232, 1 => RS485 */
	if (uart1 == 232)
		gpio_direction_output(28, 0);
	else
		gpio_direction_output(28, 1);

	gpio_free(34);
	gpio_free(28);

	return 0;
}

static void __init openrd_init(void)
{
	/*
	 * Basic setup. Needs to be called early.
	 */
	kirkwood_init();
	kirkwood_mpp_conf(openrd_mpp_config);

	kirkwood_uart0_init();
	kirkwood_nand_init(ARRAY_AND_SIZE(openrd_nand_parts), 25);

	kirkwood_ehci_init();

	if (machine_is_openrd_ultimate()) {
		openrd_ge00_data.phy_addr = MV643XX_ETH_PHY_ADDR(0);
		openrd_ge01_data.phy_addr = MV643XX_ETH_PHY_ADDR(1);
	}

	kirkwood_ge00_init(&openrd_ge00_data);
	if (!machine_is_openrd_base())
		kirkwood_ge01_init(&openrd_ge01_data);

	kirkwood_sata_init(&openrd_sata_data);

	kirkwood_i2c_init();

	if (machine_is_openrd_client() || machine_is_openrd_ultimate()) {
		i2c_register_board_info(0, i2c_board_info,
			ARRAY_SIZE(i2c_board_info));
		kirkwood_audio_init();
	}

	if (uart1 <= 0) {
		if (uart1 < 0)
			printk(KERN_ERR "Invalid kernel parameter to select "
				"UART1. Defaulting to SD. ERROR CODE: %d\n",
				uart1);

		/* Select SD
		 * Pin # 34: 0 => UART1, 1 => SD */
		if (gpio_request(34, "SD_UART1_SEL")) {
			printk(KERN_ERR "GPIO request failed for SD/UART1 "
					"selection, gpio: 34\n");
		} else {

			gpio_direction_output(34, 1);
			gpio_free(34);
			kirkwood_sdio_init(&openrd_mvsdio_data);
		}
	} else {
		if (!uart1_mpp_config())
			kirkwood_uart1_init();
	}
}

static int __init openrd_pci_init(void)
{
	if (machine_is_openrd_base() ||
	    machine_is_openrd_client() ||
	    machine_is_openrd_ultimate())
		kirkwood_pcie_init(KW_PCIE0);

	return 0;
}
subsys_initcall(openrd_pci_init);

#ifdef CONFIG_MACH_OPENRD_BASE
MACHINE_START(OPENRD_BASE, "Marvell OpenRD Base Board")
	/* Maintainer: Dhaval Vasa <dhaval.vasa@einfochips.com> */
	.atag_offset	= 0x100,
	.init_machine	= openrd_init,
	.map_io		= kirkwood_map_io,
	.init_early	= kirkwood_init_early,
	.init_irq	= kirkwood_init_irq,
	.timer		= &kirkwood_timer,
MACHINE_END
#endif

#ifdef CONFIG_MACH_OPENRD_CLIENT
MACHINE_START(OPENRD_CLIENT, "Marvell OpenRD Client Board")
	/* Maintainer: Dhaval Vasa <dhaval.vasa@einfochips.com> */
	.atag_offset	= 0x100,
	.init_machine	= openrd_init,
	.map_io		= kirkwood_map_io,
	.init_early	= kirkwood_init_early,
	.init_irq	= kirkwood_init_irq,
	.timer		= &kirkwood_timer,
MACHINE_END
#endif

#ifdef CONFIG_MACH_OPENRD_ULTIMATE
MACHINE_START(OPENRD_ULTIMATE, "Marvell OpenRD Ultimate Board")
	/* Maintainer: Dhaval Vasa <dhaval.vasa@einfochips.com> */
	.atag_offset	= 0x100,
	.init_machine	= openrd_init,
	.map_io		= kirkwood_map_io,
	.init_early	= kirkwood_init_early,
	.init_irq	= kirkwood_init_irq,
	.timer		= &kirkwood_timer,
MACHINE_END
#endif