2 * Board-specific setup code for the ATNGW100 Network Gateway
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/linkage.h>
14 #include <linux/platform_device.h>
15 #include <linux/types.h>
16 #include <linux/spi/spi.h>
19 #include <asm/setup.h>
21 #include <asm/arch/at32ap7000.h>
22 #include <asm/arch/board.h>
23 #include <asm/arch/init.h>
25 /* Initialized by bootloader-specific startup code. */
26 struct tag *bootloader_tags __initdata;
31 static struct eth_addr __initdata hw_addr[2];
32 static struct eth_platform_data __initdata eth_data[2];
34 static struct spi_board_info spi0_board_info[] __initdata = {
36 .modalias = "mtd_dataflash",
37 .max_speed_hz = 10000000,
43 * The next two functions should go away as the boot loader is
44 * supposed to initialize the macb address registers with a valid
45 * ethernet address. But we need to keep it around for a while until
46 * we can be reasonably sure the boot loader does this.
48 * The phy_id is ignored as the driver will probe for it.
50 static int __init parse_tag_ethernet(struct tag *tag)
54 i = tag->u.ethernet.mac_index;
55 if (i < ARRAY_SIZE(hw_addr))
56 memcpy(hw_addr[i].addr, tag->u.ethernet.hw_address,
57 sizeof(hw_addr[i].addr));
61 __tagtable(ATAG_ETHERNET, parse_tag_ethernet);
63 static void __init set_hw_addr(struct platform_device *pdev)
65 struct resource *res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
72 if (pdev->id >= ARRAY_SIZE(hw_addr))
75 addr = hw_addr[pdev->id].addr;
76 if (!is_valid_ether_addr(addr))
80 * Since this is board-specific code, we'll cheat and use the
81 * physical address directly as we happen to know that it's
82 * the same as the virtual address.
84 regs = (void __iomem __force *)res->start;
85 pclk = clk_get(&pdev->dev, "pclk");
90 __raw_writel((addr[3] << 24) | (addr[2] << 16)
91 | (addr[1] << 8) | addr[0], regs + 0x98);
92 __raw_writel((addr[5] << 8) | addr[4], regs + 0x9c);
97 void __init setup_board(void)
99 at32_map_usart(1, 0); /* USART 1: /dev/ttyS0, DB9 */
100 at32_setup_serial_console(0);
103 static int __init atngw100_init(void)
106 * ATNGW100 uses 16-bit SDRAM interface, so we don't need to
107 * reserve any pins for it.
110 at32_add_system_devices();
112 at32_add_device_usart(0);
114 set_hw_addr(at32_add_device_eth(0, ð_data[0]));
115 set_hw_addr(at32_add_device_eth(1, ð_data[1]));
117 at32_add_device_spi(0, spi0_board_info, ARRAY_SIZE(spi0_board_info));
121 postcore_initcall(atngw100_init);