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#include <linux/atmel-mci.h>
21
22#include <video/atmel_lcdc.h>
23
24#include <asm/setup.h>
25
26#include <mach/at32ap700x.h>
27#include <mach/board.h>
28#include <mach/init.h>
29#include <mach/portmux.h>
30
31#include "atstk1000.h"
32
33/* Oscillator frequencies. These are board specific */
34unsigned long at32_board_osc_rates[3] = {
35	[0] = 32768,	/* 32.768 kHz on RTC osc */
36	[1] = 20000000,	/* 20 MHz on osc0 */
37	[2] = 12000000,	/* 12 MHz on osc1 */
38};
39
40#ifdef CONFIG_BOARD_ATSTK1000_EXTDAC
41static struct at73c213_board_info at73c213_data = {
42	.ssc_id		= 0,
43	.shortname	= "AVR32 STK1000 external DAC",
44};
45#endif
46
47#ifndef CONFIG_BOARD_ATSTK100X_SW1_CUSTOM
48static struct spi_board_info spi0_board_info[] __initdata = {
49#ifdef CONFIG_BOARD_ATSTK1000_EXTDAC
50	{
51		/* AT73C213 */
52		.modalias	= "at73c213",
53		.max_speed_hz	= 200000,
54		.chip_select	= 0,
55		.mode		= SPI_MODE_1,
56		.platform_data	= &at73c213_data,
57	},
58#endif
59	{
60		/* QVGA display */
61		.modalias	= "ltv350qv",
62		.max_speed_hz	= 16000000,
63		.chip_select	= 1,
64		.mode		= SPI_MODE_3,
65	},
66};
67#endif
68
69#ifdef CONFIG_BOARD_ATSTK100X_SPI1
70static struct spi_board_info spi1_board_info[] __initdata = { {
71	/* patch in custom entries here */
72} };
73#endif
74
75#ifndef CONFIG_BOARD_ATSTK100X_SW2_CUSTOM
76static struct mci_platform_data __initdata mci0_data = {
77	.slot[0] = {
78		.bus_width	= 4,
79		.detect_pin	= -ENODEV,
80		.wp_pin		= -ENODEV,
81	},
82};
83#endif
84
85#ifdef CONFIG_BOARD_ATSTK1000_EXTDAC
86static void __init atstk1004_setup_extdac(void)
87{
88	struct clk *gclk;
89	struct clk *pll;
90
91	gclk = clk_get(NULL, "gclk0");
92	if (IS_ERR(gclk))
93		goto err_gclk;
94	pll = clk_get(NULL, "pll0");
95	if (IS_ERR(pll))
96		goto err_pll;
97
98	if (clk_set_parent(gclk, pll)) {
99		pr_debug("STK1000: failed to set pll0 as parent for DAC clock\n");
100		goto err_set_clk;
101	}
102
103	at32_select_periph(GPIO_PIOA_BASE, (1 << 30), GPIO_PERIPH_A, 0);
104	at73c213_data.dac_clk = gclk;
105
106err_set_clk:
107	clk_put(pll);
108err_pll:
109	clk_put(gclk);
110err_gclk:
111	return;
112}
113#else
114static void __init atstk1004_setup_extdac(void)
115{
116
117}
118#endif /* CONFIG_BOARD_ATSTK1000_EXTDAC */
119
120void __init setup_board(void)
121{
122#ifdef	CONFIG_BOARD_ATSTK100X_SW2_CUSTOM
123	at32_map_usart(0, 1, 0);	/* USART 0/B: /dev/ttyS1, IRDA */
124#else
125	at32_map_usart(1, 0, 0);	/* USART 1/A: /dev/ttyS0, DB9 */
126#endif
127	/* USART 2/unused: expansion connector */
128	at32_map_usart(3, 2, 0);	/* USART 3/C: /dev/ttyS2, DB9 */
129
130	at32_setup_serial_console(0);
131}
132
133static int __init atstk1004_init(void)
134{
135#ifdef	CONFIG_BOARD_ATSTK100X_SW2_CUSTOM
136	at32_add_device_usart(1);
137#else
138	at32_add_device_usart(0);
139#endif
140	at32_add_device_usart(2);
141
142#ifndef CONFIG_BOARD_ATSTK100X_SW1_CUSTOM
143	at32_add_device_spi(0, spi0_board_info, ARRAY_SIZE(spi0_board_info));
144#endif
145#ifdef CONFIG_BOARD_ATSTK100X_SPI1
146	at32_add_device_spi(1, spi1_board_info, ARRAY_SIZE(spi1_board_info));
147#endif
148#ifndef CONFIG_BOARD_ATSTK100X_SW2_CUSTOM
149	at32_add_device_mci(0, &mci0_data);
150#endif
151	at32_add_device_lcdc(0, &atstk1000_lcdc_data,
152			     fbmem_start, fbmem_size,
153			     ATMEL_LCDC_PRI_24BIT | ATMEL_LCDC_PRI_CONTROL);
154	at32_add_device_usba(0, NULL);
155#ifndef CONFIG_BOARD_ATSTK100X_SW3_CUSTOM
156	at32_add_device_ssc(0, ATMEL_SSC_TX);
157#endif
158
159	atstk1000_setup_j2_leds();
160	atstk1004_setup_extdac();
161
162	return 0;
163}
164postcore_initcall(atstk1004_init);
165