Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/hskinnemoen...
[linux-2.6] / arch / avr32 / boards / atstk1000 / atstk1004.c
1 /*
2  * ATSTK1003 daughterboard-specific init code
3  *
4  * Copyright (C) 2007 Atmel Corporation
5  *
6  * This program is free software; you can redistribute it and/or modify
7  * it under the terms of the GNU General Public License version 2 as
8  * published by the Free Software Foundation.
9  */
10 #include <linux/clk.h>
11 #include <linux/err.h>
12 #include <linux/init.h>
13 #include <linux/kernel.h>
14 #include <linux/platform_device.h>
15 #include <linux/string.h>
16 #include <linux/types.h>
17
18 #include <linux/spi/at73c213.h>
19 #include <linux/spi/spi.h>
20
21 #include <video/atmel_lcdc.h>
22
23 #include <asm/setup.h>
24
25 #include <mach/at32ap700x.h>
26 #include <mach/board.h>
27 #include <mach/init.h>
28 #include <mach/portmux.h>
29
30 #include "atstk1000.h"
31
32 /* Oscillator frequencies. These are board specific */
33 unsigned long at32_board_osc_rates[3] = {
34         [0] = 32768,    /* 32.768 kHz on RTC osc */
35         [1] = 20000000, /* 20 MHz on osc0 */
36         [2] = 12000000, /* 12 MHz on osc1 */
37 };
38
39 #ifdef CONFIG_BOARD_ATSTK1000_EXTDAC
40 static struct at73c213_board_info at73c213_data = {
41         .ssc_id         = 0,
42         .shortname      = "AVR32 STK1000 external DAC",
43 };
44 #endif
45
46 #ifndef CONFIG_BOARD_ATSTK100X_SW1_CUSTOM
47 static struct spi_board_info spi0_board_info[] __initdata = {
48 #ifdef CONFIG_BOARD_ATSTK1000_EXTDAC
49         {
50                 /* AT73C213 */
51                 .modalias       = "at73c213",
52                 .max_speed_hz   = 200000,
53                 .chip_select    = 0,
54                 .mode           = SPI_MODE_1,
55                 .platform_data  = &at73c213_data,
56         },
57 #endif
58         {
59                 /* QVGA display */
60                 .modalias       = "ltv350qv",
61                 .max_speed_hz   = 16000000,
62                 .chip_select    = 1,
63                 .mode           = SPI_MODE_3,
64         },
65 };
66 #endif
67
68 #ifdef CONFIG_BOARD_ATSTK100X_SPI1
69 static struct spi_board_info spi1_board_info[] __initdata = { {
70         /* patch in custom entries here */
71 } };
72 #endif
73
74 #ifdef CONFIG_BOARD_ATSTK1000_EXTDAC
75 static void __init atstk1004_setup_extdac(void)
76 {
77         struct clk *gclk;
78         struct clk *pll;
79
80         gclk = clk_get(NULL, "gclk0");
81         if (IS_ERR(gclk))
82                 goto err_gclk;
83         pll = clk_get(NULL, "pll0");
84         if (IS_ERR(pll))
85                 goto err_pll;
86
87         if (clk_set_parent(gclk, pll)) {
88                 pr_debug("STK1000: failed to set pll0 as parent for DAC clock\n");
89                 goto err_set_clk;
90         }
91
92         at32_select_periph(GPIO_PIN_PA(30), GPIO_PERIPH_A, 0);
93         at73c213_data.dac_clk = gclk;
94
95 err_set_clk:
96         clk_put(pll);
97 err_pll:
98         clk_put(gclk);
99 err_gclk:
100         return;
101 }
102 #else
103 static void __init atstk1004_setup_extdac(void)
104 {
105
106 }
107 #endif /* CONFIG_BOARD_ATSTK1000_EXTDAC */
108
109 void __init setup_board(void)
110 {
111 #ifdef  CONFIG_BOARD_ATSTK100X_SW2_CUSTOM
112         at32_map_usart(0, 1);   /* USART 0/B: /dev/ttyS1, IRDA */
113 #else
114         at32_map_usart(1, 0);   /* USART 1/A: /dev/ttyS0, DB9 */
115 #endif
116         /* USART 2/unused: expansion connector */
117         at32_map_usart(3, 2);   /* USART 3/C: /dev/ttyS2, DB9 */
118
119         at32_setup_serial_console(0);
120 }
121
122 static int __init atstk1004_init(void)
123 {
124         at32_add_system_devices();
125
126 #ifdef  CONFIG_BOARD_ATSTK100X_SW2_CUSTOM
127         at32_add_device_usart(1);
128 #else
129         at32_add_device_usart(0);
130 #endif
131         at32_add_device_usart(2);
132
133 #ifndef CONFIG_BOARD_ATSTK100X_SW1_CUSTOM
134         at32_add_device_spi(0, spi0_board_info, ARRAY_SIZE(spi0_board_info));
135 #endif
136 #ifdef CONFIG_BOARD_ATSTK100X_SPI1
137         at32_add_device_spi(1, spi1_board_info, ARRAY_SIZE(spi1_board_info));
138 #endif
139 #ifndef CONFIG_BOARD_ATSTK100X_SW2_CUSTOM
140         at32_add_device_mci(0, NULL);
141 #endif
142         at32_add_device_lcdc(0, &atstk1000_lcdc_data,
143                              fbmem_start, fbmem_size, 0);
144         at32_add_device_usba(0, NULL);
145 #ifndef CONFIG_BOARD_ATSTK100X_SW3_CUSTOM
146         at32_add_device_ssc(0, ATMEL_SSC_TX);
147 #endif
148
149         atstk1000_setup_j2_leds();
150         atstk1004_setup_extdac();
151
152         return 0;
153 }
154 postcore_initcall(atstk1004_init);