2 * QNAP TS-x09 Boards common functions
4 * Maintainers: Lennert Buytenhek <buytenh@marvell.com>
5 * Byron Bradley <byron.bbradley@gmail.com>
7 * This program is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU General Public License
9 * as published by the Free Software Foundation; either version
10 * 2 of the License, or (at your option) any later version.
13 #include <linux/kernel.h>
14 #include <linux/pci.h>
15 #include <linux/mv643xx_eth.h>
16 #include <linux/timex.h>
17 #include <linux/serial_reg.h>
18 #include "tsx09-common.h"
20 /*****************************************************************************
21 * QNAP TS-x09 specific power off method via UART1-attached PIC
22 ****************************************************************************/
24 #define UART1_REG(x) (UART1_VIRT_BASE + ((UART_##x) << 2))
26 void qnap_tsx09_power_off(void)
28 /* 19200 baud divisor */
29 const unsigned divisor = ((ORION5X_TCLK + (8 * 19200)) / (16 * 19200));
31 pr_info("%s: triggering power-off...\n", __func__);
33 /* hijack uart1 and reset into sane state (19200,8n1) */
34 writel(0x83, UART1_REG(LCR));
35 writel(divisor & 0xff, UART1_REG(DLL));
36 writel((divisor >> 8) & 0xff, UART1_REG(DLM));
37 writel(0x03, UART1_REG(LCR));
38 writel(0x00, UART1_REG(IER));
39 writel(0x00, UART1_REG(FCR));
40 writel(0x00, UART1_REG(MCR));
42 /* send the power-off command 'A' to PIC */
43 writel('A', UART1_REG(TX));
46 /*****************************************************************************
48 ****************************************************************************/
50 struct mv643xx_eth_platform_data qnap_tsx09_eth_data = {
51 .phy_addr = MV643XX_ETH_PHY_ADDR(8),
54 static int __init qnap_tsx09_parse_hex_nibble(char n)
56 if (n >= '0' && n <= '9')
59 if (n >= 'A' && n <= 'F')
62 if (n >= 'a' && n <= 'f')
68 static int __init qnap_tsx09_parse_hex_byte(const char *b)
73 hi = qnap_tsx09_parse_hex_nibble(b[0]);
74 lo = qnap_tsx09_parse_hex_nibble(b[1]);
79 return (hi << 4) | lo;
82 static int __init qnap_tsx09_check_mac_addr(const char *addr_str)
87 for (i = 0; i < 6; i++) {
91 * Enforce "xx:xx:xx:xx:xx:xx\n" format.
93 if (addr_str[(i * 3) + 2] != ((i < 5) ? ':' : '\n'))
96 byte = qnap_tsx09_parse_hex_byte(addr_str + (i * 3));
102 printk(KERN_INFO "tsx09: found ethernet mac address ");
103 for (i = 0; i < 6; i++)
104 printk("%.2x%s", addr[i], (i < 5) ? ":" : ".\n");
106 memcpy(qnap_tsx09_eth_data.mac_addr, addr, 6);
112 * The 'NAS Config' flash partition has an ext2 filesystem which
113 * contains a file that has the ethernet MAC address in plain text
114 * (format "xx:xx:xx:xx:xx:xx\n").
116 void __init qnap_tsx09_find_mac_addr(u32 mem_base, u32 size)
120 for (addr = mem_base; addr < (mem_base + size); addr += 1024) {
124 nor_page = ioremap(addr, 1024);
125 if (nor_page != NULL) {
126 ret = qnap_tsx09_check_mac_addr(nor_page);