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
|
/*
* Board-specific setup code for the MIMC200
*
* Copyright (C) 2008 Mercury IMC Ltd
*
* 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.
*/
extern struct atmel_lcdfb_info mimc200_lcdc_data;
#include <linux/clk.h>
#include <linux/etherdevice.h>
#include <linux/i2c-gpio.h>
#include <linux/init.h>
#include <linux/linkage.h>
#include <linux/platform_device.h>
#include <linux/types.h>
#include <linux/leds.h>
#include <linux/spi/spi.h>
#include <linux/spi/eeprom.h>
#include <video/atmel_lcdc.h>
#include <linux/fb.h>
#include <asm/atmel-mci.h>
#include <linux/io.h>
#include <asm/setup.h>
#include <mach/at32ap700x.h>
#include <mach/board.h>
#include <mach/init.h>
#include <mach/portmux.h>
/* Oscillator frequencies. These are board-specific */
unsigned long at32_board_osc_rates[3] = {
[0] = 32768, /* 32.768 kHz on RTC osc */
[1] = 10000000, /* 10 MHz on osc0 */
[2] = 12000000, /* 12 MHz on osc1 */
};
/* Initialized by bootloader-specific startup code. */
struct tag *bootloader_tags __initdata;
static struct fb_videomode __initdata tx14d14_modes[] = {
{
.name = "640x480 @ 60",
.refresh = 60,
.xres = 640, .yres = 480,
.pixclock = KHZ2PICOS(11666),
.left_margin = 80, .right_margin = 1,
.upper_margin = 13, .lower_margin = 2,
.hsync_len = 64, .vsync_len = 1,
.sync = 0,
.vmode = FB_VMODE_NONINTERLACED,
},
};
static struct fb_monspecs __initdata mimc200_default_monspecs = {
.manufacturer = "HIT",
.monitor = "TX14D14VM1BAB",
.modedb = tx14d14_modes,
.modedb_len = ARRAY_SIZE(tx14d14_modes),
.hfmin = 14820,
.hfmax = 22230,
.vfmin = 60,
.vfmax = 73.3,
.dclkmax = 25200000,
};
struct atmel_lcdfb_info __initdata mimc200_lcdc_data = {
.default_bpp = 16,
.default_dmacon = ATMEL_LCDC_DMAEN | ATMEL_LCDC_DMA2DEN,
.default_lcdcon2 = (ATMEL_LCDC_DISTYPE_TFT
| ATMEL_LCDC_INVCLK
| ATMEL_LCDC_CLKMOD_ALWAYSACTIVE
| ATMEL_LCDC_MEMOR_BIG),
.default_monspecs = &mimc200_default_monspecs,
.guard_time = 2,
};
struct eth_addr {
u8 addr[6];
};
static struct eth_addr __initdata hw_addr[2];
static struct eth_platform_data __initdata eth_data[2];
static struct spi_eeprom eeprom_25lc010 = {
.name = "25lc010",
.byte_len = 128,
.page_size = 16,
.flags = EE_ADDR1,
};
static struct spi_board_info spi0_board_info[] __initdata = {
{
.modalias = "rtc-ds1390",
.max_speed_hz = 4000000,
.chip_select = 2,
},
{
.modalias = "at25",
.max_speed_hz = 1000000,
.chip_select = 1,
.mode = SPI_MODE_3,
.platform_data = &eeprom_25lc010,
},
};
static struct mci_platform_data __initdata mci0_data = {
.slot[0] = {
.bus_width = 4,
.detect_pin = GPIO_PIN_PA(26),
.wp_pin = GPIO_PIN_PA(27),
},
};
/*
* The next two functions should go away as the boot loader is
* supposed to initialize the macb address registers with a valid
* ethernet address. But we need to keep it around for a while until
* we can be reasonably sure the boot loader does this.
*
* The phy_id is ignored as the driver will probe for it.
*/
static int __init parse_tag_ethernet(struct tag *tag)
{
int i;
i = tag->u.ethernet.mac_index;
if (i < ARRAY_SIZE(hw_addr))
memcpy(hw_addr[i].addr, tag->u.ethernet.hw_address,
sizeof(hw_addr[i].addr));
return 0;
}
__tagtable(ATAG_ETHERNET, parse_tag_ethernet);
static void __init set_hw_addr(struct platform_device *pdev)
{
struct resource *res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
const u8 *addr;
void __iomem *regs;
struct clk *pclk;
if (!res)
return;
if (pdev->id >= ARRAY_SIZE(hw_addr))
return;
addr = hw_addr[pdev->id].addr;
if (!is_valid_ether_addr(addr))
return;
/*
* Since this is board-specific code, we'll cheat and use the
* physical address directly as we happen to know that it's
* the same as the virtual address.
*/
regs = (void __iomem __force *)res->start;
pclk = clk_get(&pdev->dev, "pclk");
if (!pclk)
return;
clk_enable(pclk);
__raw_writel((addr[3] << 24) | (addr[2] << 16)
| (addr[1] << 8) | addr[0], regs + 0x98);
__raw_writel((addr[5] << 8) | addr[4], regs + 0x9c);
clk_disable(pclk);
clk_put(pclk);
}
void __init setup_board(void)
{
at32_map_usart(0, 0); /* USART 0: /dev/ttyS0 (TTL --> Altera) */
at32_map_usart(1, 1); /* USART 1: /dev/ttyS1 (RS232) */
at32_map_usart(2, 2); /* USART 2: /dev/ttyS2 (RS485) */
at32_map_usart(3, 3); /* USART 3: /dev/ttyS3 (RS422 Multidrop) */
}
static struct i2c_gpio_platform_data i2c_gpio_data = {
.sda_pin = GPIO_PIN_PA(6),
.scl_pin = GPIO_PIN_PA(7),
.sda_is_open_drain = 1,
.scl_is_open_drain = 1,
.udelay = 2, /* close to 100 kHz */
};
static struct platform_device i2c_gpio_device = {
.name = "i2c-gpio",
.id = 0,
.dev = {
.platform_data = &i2c_gpio_data,
},
};
static struct i2c_board_info __initdata i2c_info[] = {
};
static int __init mimc200_init(void)
{
/*
* MIMC200 uses 16-bit SDRAM interface, so we don't need to
* reserve any pins for it.
*/
at32_add_system_devices();
at32_add_device_usart(0);
at32_add_device_usart(1);
at32_add_device_usart(2);
at32_add_device_usart(3);
set_hw_addr(at32_add_device_eth(0, ð_data[0]));
set_hw_addr(at32_add_device_eth(1, ð_data[1]));
at32_add_device_spi(0, spi0_board_info, ARRAY_SIZE(spi0_board_info));
at32_add_device_mci(0, &mci0_data);
at32_add_device_usba(0, NULL);
at32_select_periph(GPIO_PIOB_BASE, 1 << 28, 0, AT32_GPIOF_PULLUP);
at32_select_gpio(i2c_gpio_data.sda_pin,
AT32_GPIOF_MULTIDRV | AT32_GPIOF_OUTPUT | AT32_GPIOF_HIGH);
at32_select_gpio(i2c_gpio_data.scl_pin,
AT32_GPIOF_MULTIDRV | AT32_GPIOF_OUTPUT | AT32_GPIOF_HIGH);
platform_device_register(&i2c_gpio_device);
i2c_register_board_info(0, i2c_info, ARRAY_SIZE(i2c_info));
at32_add_device_lcdc(0, &mimc200_lcdc_data,
fbmem_start, fbmem_size, 1);
return 0;
}
postcore_initcall(mimc200_init);
|
