diff options
Diffstat (limited to 'arch/mips/bcm63xx/setup.c')
-rw-r--r-- | arch/mips/bcm63xx/setup.c | 125 |
1 files changed, 125 insertions, 0 deletions
diff --git a/arch/mips/bcm63xx/setup.c b/arch/mips/bcm63xx/setup.c new file mode 100644 index 000000000000..b18a0ca926fa --- /dev/null +++ b/arch/mips/bcm63xx/setup.c | |||
@@ -0,0 +1,125 @@ | |||
1 | /* | ||
2 | * This file is subject to the terms and conditions of the GNU General Public | ||
3 | * License. See the file "COPYING" in the main directory of this archive | ||
4 | * for more details. | ||
5 | * | ||
6 | * Copyright (C) 2008 Maxime Bizon <mbizon@freebox.fr> | ||
7 | */ | ||
8 | |||
9 | #include <linux/init.h> | ||
10 | #include <linux/kernel.h> | ||
11 | #include <linux/delay.h> | ||
12 | #include <linux/bootmem.h> | ||
13 | #include <linux/ioport.h> | ||
14 | #include <linux/pm.h> | ||
15 | #include <asm/bootinfo.h> | ||
16 | #include <asm/time.h> | ||
17 | #include <asm/reboot.h> | ||
18 | #include <asm/cacheflush.h> | ||
19 | #include <bcm63xx_board.h> | ||
20 | #include <bcm63xx_cpu.h> | ||
21 | #include <bcm63xx_regs.h> | ||
22 | #include <bcm63xx_io.h> | ||
23 | |||
24 | void bcm63xx_machine_halt(void) | ||
25 | { | ||
26 | printk(KERN_INFO "System halted\n"); | ||
27 | while (1) | ||
28 | ; | ||
29 | } | ||
30 | |||
31 | static void bcm6348_a1_reboot(void) | ||
32 | { | ||
33 | u32 reg; | ||
34 | |||
35 | /* soft reset all blocks */ | ||
36 | printk(KERN_INFO "soft-reseting all blocks ...\n"); | ||
37 | reg = bcm_perf_readl(PERF_SOFTRESET_REG); | ||
38 | reg &= ~SOFTRESET_6348_ALL; | ||
39 | bcm_perf_writel(reg, PERF_SOFTRESET_REG); | ||
40 | mdelay(10); | ||
41 | |||
42 | reg = bcm_perf_readl(PERF_SOFTRESET_REG); | ||
43 | reg |= SOFTRESET_6348_ALL; | ||
44 | bcm_perf_writel(reg, PERF_SOFTRESET_REG); | ||
45 | mdelay(10); | ||
46 | |||
47 | /* Jump to the power on address. */ | ||
48 | printk(KERN_INFO "jumping to reset vector.\n"); | ||
49 | /* set high vectors (base at 0xbfc00000 */ | ||
50 | set_c0_status(ST0_BEV | ST0_ERL); | ||
51 | /* run uncached in kseg0 */ | ||
52 | change_c0_config(CONF_CM_CMASK, CONF_CM_UNCACHED); | ||
53 | __flush_cache_all(); | ||
54 | /* remove all wired TLB entries */ | ||
55 | write_c0_wired(0); | ||
56 | __asm__ __volatile__( | ||
57 | "jr\t%0" | ||
58 | : | ||
59 | : "r" (0xbfc00000)); | ||
60 | while (1) | ||
61 | ; | ||
62 | } | ||
63 | |||
64 | void bcm63xx_machine_reboot(void) | ||
65 | { | ||
66 | u32 reg; | ||
67 | |||
68 | /* mask and clear all external irq */ | ||
69 | reg = bcm_perf_readl(PERF_EXTIRQ_CFG_REG); | ||
70 | reg &= ~EXTIRQ_CFG_MASK_ALL; | ||
71 | reg |= EXTIRQ_CFG_CLEAR_ALL; | ||
72 | bcm_perf_writel(reg, PERF_EXTIRQ_CFG_REG); | ||
73 | |||
74 | if (BCMCPU_IS_6348() && (bcm63xx_get_cpu_rev() == 0xa1)) | ||
75 | bcm6348_a1_reboot(); | ||
76 | |||
77 | printk(KERN_INFO "triggering watchdog soft-reset...\n"); | ||
78 | bcm_perf_writel(SYS_PLL_SOFT_RESET, PERF_SYS_PLL_CTL_REG); | ||
79 | while (1) | ||
80 | ; | ||
81 | } | ||
82 | |||
83 | static void __bcm63xx_machine_reboot(char *p) | ||
84 | { | ||
85 | bcm63xx_machine_reboot(); | ||
86 | } | ||
87 | |||
88 | /* | ||
89 | * return system type in /proc/cpuinfo | ||
90 | */ | ||
91 | const char *get_system_type(void) | ||
92 | { | ||
93 | static char buf[128]; | ||
94 | snprintf(buf, sizeof(buf), "bcm63xx/%s (0x%04x/0x%04X)", | ||
95 | board_get_name(), | ||
96 | bcm63xx_get_cpu_id(), bcm63xx_get_cpu_rev()); | ||
97 | return buf; | ||
98 | } | ||
99 | |||
100 | void __init plat_time_init(void) | ||
101 | { | ||
102 | mips_hpt_frequency = bcm63xx_get_cpu_freq() / 2; | ||
103 | } | ||
104 | |||
105 | void __init plat_mem_setup(void) | ||
106 | { | ||
107 | add_memory_region(0, bcm63xx_get_memory_size(), BOOT_MEM_RAM); | ||
108 | |||
109 | _machine_halt = bcm63xx_machine_halt; | ||
110 | _machine_restart = __bcm63xx_machine_reboot; | ||
111 | pm_power_off = bcm63xx_machine_halt; | ||
112 | |||
113 | set_io_port_base(0); | ||
114 | ioport_resource.start = 0; | ||
115 | ioport_resource.end = ~0; | ||
116 | |||
117 | board_setup(); | ||
118 | } | ||
119 | |||
120 | int __init bcm63xx_register_devices(void) | ||
121 | { | ||
122 | return board_register_devices(); | ||
123 | } | ||
124 | |||
125 | arch_initcall(bcm63xx_register_devices); | ||