ia64/kvm: compilation fix. export account_system_vtime.
[pv_ops_mirror.git] / arch / avr32 / boards / atstk1000 / atstk1002.c
blob000eb4220a12619b4e9b9922f5ed7d9e4c958064
1 /*
2 * ATSTK1002 daughterboard-specific init code
4 * Copyright (C) 2005-2006 Atmel Corporation
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/etherdevice.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 #include <linux/spi/spi.h>
18 #include <linux/spi/at73c213.h>
20 #include <video/atmel_lcdc.h>
22 #include <asm/io.h>
23 #include <asm/setup.h>
24 #include <asm/arch/at32ap700x.h>
25 #include <asm/arch/board.h>
26 #include <asm/arch/init.h>
27 #include <asm/arch/portmux.h>
29 #include "atstk1000.h"
32 struct eth_addr {
33 u8 addr[6];
36 static struct eth_addr __initdata hw_addr[2];
37 static struct eth_platform_data __initdata eth_data[2] = {
40 * The MDIO pullups on STK1000 are a bit too weak for
41 * the autodetection to work properly, so we have to
42 * mask out everything but the correct address.
44 .phy_mask = ~(1U << 16),
47 .phy_mask = ~(1U << 17),
51 #ifdef CONFIG_BOARD_ATSTK1000_EXTDAC
52 static struct at73c213_board_info at73c213_data = {
53 .ssc_id = 0,
54 .shortname = "AVR32 STK1000 external DAC",
56 #endif
58 #ifndef CONFIG_BOARD_ATSTK100X_SW1_CUSTOM
59 static struct spi_board_info spi0_board_info[] __initdata = {
60 #ifdef CONFIG_BOARD_ATSTK1000_EXTDAC
62 /* AT73C213 */
63 .modalias = "at73c213",
64 .max_speed_hz = 200000,
65 .chip_select = 0,
66 .mode = SPI_MODE_1,
67 .platform_data = &at73c213_data,
69 #endif
71 /* QVGA display */
72 .modalias = "ltv350qv",
73 .max_speed_hz = 16000000,
74 .chip_select = 1,
75 .mode = SPI_MODE_3,
78 #endif
80 #ifdef CONFIG_BOARD_ATSTK100X_SPI1
81 static struct spi_board_info spi1_board_info[] __initdata = { {
82 /* patch in custom entries here */
83 } };
84 #endif
87 * The next two functions should go away as the boot loader is
88 * supposed to initialize the macb address registers with a valid
89 * ethernet address. But we need to keep it around for a while until
90 * we can be reasonably sure the boot loader does this.
92 * The phy_id is ignored as the driver will probe for it.
94 static int __init parse_tag_ethernet(struct tag *tag)
96 int i;
98 i = tag->u.ethernet.mac_index;
99 if (i < ARRAY_SIZE(hw_addr))
100 memcpy(hw_addr[i].addr, tag->u.ethernet.hw_address,
101 sizeof(hw_addr[i].addr));
103 return 0;
105 __tagtable(ATAG_ETHERNET, parse_tag_ethernet);
107 static void __init set_hw_addr(struct platform_device *pdev)
109 struct resource *res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
110 const u8 *addr;
111 void __iomem *regs;
112 struct clk *pclk;
114 if (!res)
115 return;
116 if (pdev->id >= ARRAY_SIZE(hw_addr))
117 return;
119 addr = hw_addr[pdev->id].addr;
120 if (!is_valid_ether_addr(addr))
121 return;
124 * Since this is board-specific code, we'll cheat and use the
125 * physical address directly as we happen to know that it's
126 * the same as the virtual address.
128 regs = (void __iomem __force *)res->start;
129 pclk = clk_get(&pdev->dev, "pclk");
130 if (!pclk)
131 return;
133 clk_enable(pclk);
134 __raw_writel((addr[3] << 24) | (addr[2] << 16)
135 | (addr[1] << 8) | addr[0], regs + 0x98);
136 __raw_writel((addr[5] << 8) | addr[4], regs + 0x9c);
137 clk_disable(pclk);
138 clk_put(pclk);
141 #ifdef CONFIG_BOARD_ATSTK1000_EXTDAC
142 static void __init atstk1002_setup_extdac(void)
144 struct clk *gclk;
145 struct clk *pll;
147 gclk = clk_get(NULL, "gclk0");
148 if (IS_ERR(gclk))
149 goto err_gclk;
150 pll = clk_get(NULL, "pll0");
151 if (IS_ERR(pll))
152 goto err_pll;
154 if (clk_set_parent(gclk, pll)) {
155 pr_debug("STK1000: failed to set pll0 as parent for DAC clock\n");
156 goto err_set_clk;
159 at32_select_periph(GPIO_PIN_PA(30), GPIO_PERIPH_A, 0);
160 at73c213_data.dac_clk = gclk;
162 err_set_clk:
163 clk_put(pll);
164 err_pll:
165 clk_put(gclk);
166 err_gclk:
167 return;
169 #else
170 static void __init atstk1002_setup_extdac(void)
174 #endif /* CONFIG_BOARD_ATSTK1000_EXTDAC */
176 void __init setup_board(void)
178 #ifdef CONFIG_BOARD_ATSTK100X_SW2_CUSTOM
179 at32_map_usart(0, 1); /* USART 0/B: /dev/ttyS1, IRDA */
180 #else
181 at32_map_usart(1, 0); /* USART 1/A: /dev/ttyS0, DB9 */
182 #endif
183 /* USART 2/unused: expansion connector */
184 at32_map_usart(3, 2); /* USART 3/C: /dev/ttyS2, DB9 */
186 at32_setup_serial_console(0);
189 static int __init atstk1002_init(void)
192 * ATSTK1000 uses 32-bit SDRAM interface. Reserve the
193 * SDRAM-specific pins so that nobody messes with them.
195 at32_reserve_pin(GPIO_PIN_PE(0)); /* DATA[16] */
196 at32_reserve_pin(GPIO_PIN_PE(1)); /* DATA[17] */
197 at32_reserve_pin(GPIO_PIN_PE(2)); /* DATA[18] */
198 at32_reserve_pin(GPIO_PIN_PE(3)); /* DATA[19] */
199 at32_reserve_pin(GPIO_PIN_PE(4)); /* DATA[20] */
200 at32_reserve_pin(GPIO_PIN_PE(5)); /* DATA[21] */
201 at32_reserve_pin(GPIO_PIN_PE(6)); /* DATA[22] */
202 at32_reserve_pin(GPIO_PIN_PE(7)); /* DATA[23] */
203 at32_reserve_pin(GPIO_PIN_PE(8)); /* DATA[24] */
204 at32_reserve_pin(GPIO_PIN_PE(9)); /* DATA[25] */
205 at32_reserve_pin(GPIO_PIN_PE(10)); /* DATA[26] */
206 at32_reserve_pin(GPIO_PIN_PE(11)); /* DATA[27] */
207 at32_reserve_pin(GPIO_PIN_PE(12)); /* DATA[28] */
208 at32_reserve_pin(GPIO_PIN_PE(13)); /* DATA[29] */
209 at32_reserve_pin(GPIO_PIN_PE(14)); /* DATA[30] */
210 at32_reserve_pin(GPIO_PIN_PE(15)); /* DATA[31] */
211 at32_reserve_pin(GPIO_PIN_PE(26)); /* SDCS */
213 at32_add_system_devices();
215 #ifdef CONFIG_BOARD_ATSTK100X_SW2_CUSTOM
216 at32_add_device_usart(1);
217 #else
218 at32_add_device_usart(0);
219 #endif
220 at32_add_device_usart(2);
222 #ifndef CONFIG_BOARD_ATSTK1002_SW6_CUSTOM
223 set_hw_addr(at32_add_device_eth(0, &eth_data[0]));
224 #endif
225 #ifndef CONFIG_BOARD_ATSTK100X_SW1_CUSTOM
226 at32_add_device_spi(0, spi0_board_info, ARRAY_SIZE(spi0_board_info));
227 #endif
228 #ifdef CONFIG_BOARD_ATSTK100X_SPI1
229 at32_add_device_spi(1, spi1_board_info, ARRAY_SIZE(spi1_board_info));
230 #endif
231 #ifdef CONFIG_BOARD_ATSTK1002_SW5_CUSTOM
232 set_hw_addr(at32_add_device_eth(1, &eth_data[1]));
233 #else
234 at32_add_device_lcdc(0, &atstk1000_lcdc_data,
235 fbmem_start, fbmem_size);
236 #endif
237 at32_add_device_usba(0, NULL);
238 #ifndef CONFIG_BOARD_ATSTK100X_SW3_CUSTOM
239 at32_add_device_ssc(0, ATMEL_SSC_TX);
240 #endif
242 atstk1000_setup_j2_leds();
243 atstk1002_setup_extdac();
245 return 0;
247 postcore_initcall(atstk1002_init);