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530c854a SB |
1 | /* |
2 | * QNAP TS-x09 Boards common functions | |
3 | * | |
4 | * Maintainers: Lennert Buytenhek <buytenh@marvell.com> | |
5 | * Byron Bradley <byron.bbradley@gmail.com> | |
6 | * | |
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. | |
11 | */ | |
12 | ||
13 | #include <linux/kernel.h> | |
14 | #include <linux/pci.h> | |
15 | #include <linux/mv643xx_eth.h> | |
a10b188f | 16 | #include <linux/timex.h> |
530c854a | 17 | #include <linux/serial_reg.h> |
8a52dd4f | 18 | #include <mach/orion5x.h> |
530c854a | 19 | #include "tsx09-common.h" |
ebe35aff | 20 | #include "common.h" |
530c854a SB |
21 | |
22 | /***************************************************************************** | |
23 | * QNAP TS-x09 specific power off method via UART1-attached PIC | |
24 | ****************************************************************************/ | |
25 | ||
26 | #define UART1_REG(x) (UART1_VIRT_BASE + ((UART_##x) << 2)) | |
27 | ||
28 | void qnap_tsx09_power_off(void) | |
29 | { | |
30 | /* 19200 baud divisor */ | |
ebe35aff | 31 | const unsigned divisor = ((orion5x_tclk + (8 * 19200)) / (16 * 19200)); |
530c854a SB |
32 | |
33 | pr_info("%s: triggering power-off...\n", __func__); | |
34 | ||
35 | /* hijack uart1 and reset into sane state (19200,8n1) */ | |
36 | writel(0x83, UART1_REG(LCR)); | |
37 | writel(divisor & 0xff, UART1_REG(DLL)); | |
38 | writel((divisor >> 8) & 0xff, UART1_REG(DLM)); | |
39 | writel(0x03, UART1_REG(LCR)); | |
40 | writel(0x00, UART1_REG(IER)); | |
41 | writel(0x00, UART1_REG(FCR)); | |
42 | writel(0x00, UART1_REG(MCR)); | |
43 | ||
44 | /* send the power-off command 'A' to PIC */ | |
45 | writel('A', UART1_REG(TX)); | |
46 | } | |
47 | ||
48 | /***************************************************************************** | |
49 | * Ethernet | |
50 | ****************************************************************************/ | |
51 | ||
52 | struct mv643xx_eth_platform_data qnap_tsx09_eth_data = { | |
ac840605 | 53 | .phy_addr = MV643XX_ETH_PHY_ADDR(8), |
530c854a SB |
54 | }; |
55 | ||
530c854a SB |
56 | static int __init qnap_tsx09_check_mac_addr(const char *addr_str) |
57 | { | |
58 | u_int8_t addr[6]; | |
530c854a | 59 | |
4904dbda AS |
60 | if (!mac_pton(addr_str, addr)) |
61 | return -1; | |
530c854a | 62 | |
7a1436d5 | 63 | printk(KERN_INFO "tsx09: found ethernet mac address %pM\n", addr); |
530c854a SB |
64 | |
65 | memcpy(qnap_tsx09_eth_data.mac_addr, addr, 6); | |
66 | ||
67 | return 0; | |
68 | } | |
69 | ||
70 | /* | |
71 | * The 'NAS Config' flash partition has an ext2 filesystem which | |
72 | * contains a file that has the ethernet MAC address in plain text | |
73 | * (format "xx:xx:xx:xx:xx:xx\n"). | |
74 | */ | |
75 | void __init qnap_tsx09_find_mac_addr(u32 mem_base, u32 size) | |
76 | { | |
77 | unsigned long addr; | |
78 | ||
79 | for (addr = mem_base; addr < (mem_base + size); addr += 1024) { | |
4904dbda | 80 | void __iomem *nor_page; |
530c854a SB |
81 | int ret = 0; |
82 | ||
83 | nor_page = ioremap(addr, 1024); | |
84 | if (nor_page != NULL) { | |
4904dbda | 85 | ret = qnap_tsx09_check_mac_addr((__force const char *)nor_page); |
530c854a SB |
86 | iounmap(nor_page); |
87 | } | |
88 | ||
89 | if (ret == 0) | |
90 | break; | |
91 | } | |
92 | } |