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
|
/*
* linux/arch/arm/mach-omap2/board-2430sdp.c
*
* Copyright (C) 2006 Texas Instruments
*
* Modified from mach-omap2/board-generic.c
*
* Initial Code : Based on a patch from Komal Shah and Richard Woodruff
* Updated the Code for 2430 SDP : Syed Mohammed Khasim
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/partitions.h>
#include <linux/delay.h>
#include <linux/err.h>
#include <linux/clk.h>
#include <asm/hardware.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <asm/mach/map.h>
#include <asm/mach/flash.h>
#include <asm/arch/gpio.h>
#include <asm/arch/mux.h>
#include <asm/arch/board.h>
#include <asm/arch/common.h>
#include <asm/arch/gpmc.h>
#include <asm/io.h>
#define SDP2430_FLASH_CS 0
#define SDP2430_SMC91X_CS 5
static struct mtd_partition sdp2430_partitions[] = {
/* bootloader (U-Boot, etc) in first sector */
{
.name = "bootloader",
.offset = 0,
.size = SZ_256K,
.mask_flags = MTD_WRITEABLE, /* force read-only */
},
/* bootloader params in the next sector */
{
.name = "params",
.offset = MTDPART_OFS_APPEND,
.size = SZ_128K,
.mask_flags = 0,
},
/* kernel */
{
.name = "kernel",
.offset = MTDPART_OFS_APPEND,
.size = SZ_2M,
.mask_flags = 0
},
/* file system */
{
.name = "filesystem",
.offset = MTDPART_OFS_APPEND,
.size = MTDPART_SIZ_FULL,
.mask_flags = 0
}
};
static struct flash_platform_data sdp2430_flash_data = {
.map_name = "cfi_probe",
.width = 2,
.parts = sdp2430_partitions,
.nr_parts = ARRAY_SIZE(sdp2430_partitions),
};
static struct resource sdp2430_flash_resource = {
.start = SDP2430_CS0_BASE,
.end = SDP2430_CS0_BASE + SZ_64M - 1,
.flags = IORESOURCE_MEM,
};
static struct platform_device sdp2430_flash_device = {
.name = "omapflash",
.id = 0,
.dev = {
.platform_data = &sdp2430_flash_data,
},
.num_resources = 1,
.resource = &sdp2430_flash_resource,
};
static struct resource sdp2430_smc91x_resources[] = {
[0] = {
.start = SDP2430_CS0_BASE,
.end = SDP2430_CS0_BASE + SZ_64M - 1,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = OMAP_GPIO_IRQ(OMAP24XX_ETHR_GPIO_IRQ),
.end = OMAP_GPIO_IRQ(OMAP24XX_ETHR_GPIO_IRQ),
.flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
},
};
static struct platform_device sdp2430_smc91x_device = {
.name = "smc91x",
.id = -1,
.num_resources = ARRAY_SIZE(sdp2430_smc91x_resources),
.resource = sdp2430_smc91x_resources,
};
static struct platform_device *sdp2430_devices[] __initdata = {
&sdp2430_smc91x_device,
&sdp2430_flash_device,
};
static inline void __init sdp2430_init_smc91x(void)
{
int eth_cs;
unsigned long cs_mem_base;
unsigned int rate;
struct clk *gpmc_fck;
eth_cs = SDP2430_SMC91X_CS;
gpmc_fck = clk_get(NULL, "gpmc_fck"); /* Always on ENABLE_ON_INIT */
if (IS_ERR(gpmc_fck)) {
WARN_ON(1);
return;
}
clk_enable(gpmc_fck);
rate = clk_get_rate(gpmc_fck);
/* Make sure CS1 timings are correct, for 2430 always muxed */
gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG1, 0x00011200);
if (rate >= 160000000) {
gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG2, 0x001f1f01);
gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG3, 0x00080803);
gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG4, 0x1c0b1c0a);
gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG5, 0x041f1F1F);
gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG6, 0x000004C4);
} else if (rate >= 130000000) {
gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG2, 0x001f1f00);
gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG3, 0x00080802);
gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG4, 0x1C091C09);
gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG5, 0x041f1F1F);
gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG6, 0x000004C4);
} else { /* rate = 100000000 */
gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG2, 0x001f1f00);
gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG3, 0x00080802);
gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG4, 0x1C091C09);
gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG5, 0x031A1F1F);
gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG6, 0x000003C2);
}
if (gpmc_cs_request(eth_cs, SZ_16M, &cs_mem_base) < 0) {
printk(KERN_ERR "Failed to request GPMC mem for smc91x\n");
goto out;
}
sdp2430_smc91x_resources[0].start = cs_mem_base + 0x300;
sdp2430_smc91x_resources[0].end = cs_mem_base + 0x30f;
udelay(100);
if (omap_request_gpio(OMAP24XX_ETHR_GPIO_IRQ) < 0) {
printk(KERN_ERR "Failed to request GPIO%d for smc91x IRQ\n",
OMAP24XX_ETHR_GPIO_IRQ);
gpmc_cs_free(eth_cs);
goto out;
}
omap_set_gpio_direction(OMAP24XX_ETHR_GPIO_IRQ, 1);
out:
clk_disable(gpmc_fck);
clk_put(gpmc_fck);
}
static void __init omap_2430sdp_init_irq(void)
{
omap2_init_common_hw();
omap_init_irq();
omap_gpio_init();
sdp2430_init_smc91x();
}
static struct omap_uart_config sdp2430_uart_config __initdata = {
.enabled_uarts = ((1 << 0) | (1 << 1) | (1 << 2)),
};
static struct omap_board_config_kernel sdp2430_config[] = {
{OMAP_TAG_UART, &sdp2430_uart_config},
};
static void __init omap_2430sdp_init(void)
{
platform_add_devices(sdp2430_devices, ARRAY_SIZE(sdp2430_devices));
omap_board_config = sdp2430_config;
omap_board_config_size = ARRAY_SIZE(sdp2430_config);
omap_serial_init();
}
static void __init omap_2430sdp_map_io(void)
{
omap2_set_globals_243x();
omap2_map_common_io();
}
MACHINE_START(OMAP_2430SDP, "OMAP2430 sdp2430 board")
/* Maintainer: Syed Khasim - Texas Instruments Inc */
.phys_io = 0x48000000,
.io_pg_offst = ((0xd8000000) >> 18) & 0xfffc,
.boot_params = 0x80000100,
.map_io = omap_2430sdp_map_io,
.init_irq = omap_2430sdp_init_irq,
.init_machine = omap_2430sdp_init,
.timer = &omap_timer,
MACHINE_END
|
