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.
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>
19 #include <video/atmel_lcdc.h>
22 #include <asm/setup.h>
23 #include <asm/arch/at32ap7000.h>
24 #include <asm/arch/board.h>
25 #include <asm/arch/init.h>
26 #include <asm/arch/portmux.h>
28 #include "atstk1000.h"
35 static struct eth_addr __initdata hw_addr[2];
36 static struct eth_platform_data __initdata eth_data[2] = {
39 * The MDIO pullups on STK1000 are a bit too weak for
40 * the autodetection to work properly, so we have to
41 * mask out everything but the correct address.
43 .phy_mask = ~(1U << 16),
46 .phy_mask = ~(1U << 17),
50 #ifndef CONFIG_BOARD_ATSTK1002_SW1_CUSTOM
51 static struct spi_board_info spi0_board_info[] __initdata = {
54 .modalias = "ltv350qv",
55 .max_speed_hz = 16000000,
62 #ifdef CONFIG_BOARD_ATSTK1002_SPI1
63 static struct spi_board_info spi1_board_info[] __initdata = { {
64 /* patch in custom entries here */
69 * The next two functions should go away as the boot loader is
70 * supposed to initialize the macb address registers with a valid
71 * ethernet address. But we need to keep it around for a while until
72 * we can be reasonably sure the boot loader does this.
74 * The phy_id is ignored as the driver will probe for it.
76 static int __init parse_tag_ethernet(struct tag *tag)
80 i = tag->u.ethernet.mac_index;
81 if (i < ARRAY_SIZE(hw_addr))
82 memcpy(hw_addr[i].addr, tag->u.ethernet.hw_address,
83 sizeof(hw_addr[i].addr));
87 __tagtable(ATAG_ETHERNET, parse_tag_ethernet);
89 static void __init set_hw_addr(struct platform_device *pdev)
91 struct resource *res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
98 if (pdev->id >= ARRAY_SIZE(hw_addr))
101 addr = hw_addr[pdev->id].addr;
102 if (!is_valid_ether_addr(addr))
106 * Since this is board-specific code, we'll cheat and use the
107 * physical address directly as we happen to know that it's
108 * the same as the virtual address.
110 regs = (void __iomem __force *)res->start;
111 pclk = clk_get(&pdev->dev, "pclk");
116 __raw_writel((addr[3] << 24) | (addr[2] << 16)
117 | (addr[1] << 8) | addr[0], regs + 0x98);
118 __raw_writel((addr[5] << 8) | addr[4], regs + 0x9c);
123 void __init setup_board(void)
125 #ifdef CONFIG_BOARD_ATSTK1002_SW2_CUSTOM
126 at32_map_usart(0, 1); /* USART 0/B: /dev/ttyS1, IRDA */
128 at32_map_usart(1, 0); /* USART 1/A: /dev/ttyS0, DB9 */
130 /* USART 2/unused: expansion connector */
131 at32_map_usart(3, 2); /* USART 3/C: /dev/ttyS2, DB9 */
133 at32_setup_serial_console(0);
136 static int __init atstk1002_init(void)
139 * ATSTK1000 uses 32-bit SDRAM interface. Reserve the
140 * SDRAM-specific pins so that nobody messes with them.
142 at32_reserve_pin(GPIO_PIN_PE(0)); /* DATA[16] */
143 at32_reserve_pin(GPIO_PIN_PE(1)); /* DATA[17] */
144 at32_reserve_pin(GPIO_PIN_PE(2)); /* DATA[18] */
145 at32_reserve_pin(GPIO_PIN_PE(3)); /* DATA[19] */
146 at32_reserve_pin(GPIO_PIN_PE(4)); /* DATA[20] */
147 at32_reserve_pin(GPIO_PIN_PE(5)); /* DATA[21] */
148 at32_reserve_pin(GPIO_PIN_PE(6)); /* DATA[22] */
149 at32_reserve_pin(GPIO_PIN_PE(7)); /* DATA[23] */
150 at32_reserve_pin(GPIO_PIN_PE(8)); /* DATA[24] */
151 at32_reserve_pin(GPIO_PIN_PE(9)); /* DATA[25] */
152 at32_reserve_pin(GPIO_PIN_PE(10)); /* DATA[26] */
153 at32_reserve_pin(GPIO_PIN_PE(11)); /* DATA[27] */
154 at32_reserve_pin(GPIO_PIN_PE(12)); /* DATA[28] */
155 at32_reserve_pin(GPIO_PIN_PE(13)); /* DATA[29] */
156 at32_reserve_pin(GPIO_PIN_PE(14)); /* DATA[30] */
157 at32_reserve_pin(GPIO_PIN_PE(15)); /* DATA[31] */
158 at32_reserve_pin(GPIO_PIN_PE(26)); /* SDCS */
160 at32_add_system_devices();
162 #ifdef CONFIG_BOARD_ATSTK1002_SW2_CUSTOM
163 at32_add_device_usart(1);
165 at32_add_device_usart(0);
167 at32_add_device_usart(2);
169 #ifndef CONFIG_BOARD_ATSTK1002_SW6_CUSTOM
170 set_hw_addr(at32_add_device_eth(0, ð_data[0]));
172 #ifndef CONFIG_BOARD_ATSTK1002_SW1_CUSTOM
173 at32_add_device_spi(0, spi0_board_info, ARRAY_SIZE(spi0_board_info));
175 #ifdef CONFIG_BOARD_ATSTK1002_SPI1
176 at32_add_device_spi(1, spi1_board_info, ARRAY_SIZE(spi1_board_info));
178 #ifdef CONFIG_BOARD_ATSTK1002_SW5_CUSTOM
179 set_hw_addr(at32_add_device_eth(1, ð_data[1]));
181 at32_add_device_lcdc(0, &atstk1000_lcdc_data,
182 fbmem_start, fbmem_size);
184 #ifndef CONFIG_BOARD_ATSTK1002_SW3_CUSTOM
185 at32_add_device_ssc(0, ATMEL_SSC_TX);
190 postcore_initcall(atstk1002_init);