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
6 * Copyright (C) 2008 Maxime Bizon <mbizon@freebox.fr>
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>
15 #include <asm/bootinfo.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>
24 void bcm63xx_machine_halt(void)
26 printk(KERN_INFO "System halted\n");
30 static void bcm6348_a1_reboot(void)
34 /* soft reset all blocks */
35 printk(KERN_INFO "soft-reseting all blocks ...\n");
36 reg = bcm_perf_readl(PERF_SOFTRESET_REG);
37 reg &= ~SOFTRESET_6348_ALL;
38 bcm_perf_writel(reg, PERF_SOFTRESET_REG);
41 reg = bcm_perf_readl(PERF_SOFTRESET_REG);
42 reg |= SOFTRESET_6348_ALL;
43 bcm_perf_writel(reg, PERF_SOFTRESET_REG);
46 /* Jump to the power on address. */
47 printk(KERN_INFO "jumping to reset vector.\n");
48 /* set high vectors (base at 0xbfc00000 */
49 set_c0_status(ST0_BEV | ST0_ERL);
50 /* run uncached in kseg0 */
51 change_c0_config(CONF_CM_CMASK, CONF_CM_UNCACHED);
53 /* remove all wired TLB entries */
62 void bcm63xx_machine_reboot(void)
66 /* mask and clear all external irq */
67 reg = bcm_perf_readl(PERF_EXTIRQ_CFG_REG);
68 reg &= ~EXTIRQ_CFG_MASK_ALL;
69 reg |= EXTIRQ_CFG_CLEAR_ALL;
70 bcm_perf_writel(reg, PERF_EXTIRQ_CFG_REG);
72 if (BCMCPU_IS_6348() && (bcm63xx_get_cpu_rev() == 0xa1))
75 printk(KERN_INFO "triggering watchdog soft-reset...\n");
76 reg = bcm_perf_readl(PERF_SYS_PLL_CTL_REG);
77 reg |= SYS_PLL_SOFT_RESET;
78 bcm_perf_writel(reg, PERF_SYS_PLL_CTL_REG);
82 static void __bcm63xx_machine_reboot(char *p)
84 bcm63xx_machine_reboot();
88 * return system type in /proc/cpuinfo
90 const char *get_system_type(void)
93 snprintf(buf, sizeof (buf), "bcm63xx/%s (0x%04x/0x%04X)",
95 bcm63xx_get_cpu_id(), bcm63xx_get_cpu_rev());
99 void __init plat_time_init(void)
101 mips_hpt_frequency = bcm63xx_get_cpu_freq() / 2;
104 void __init plat_mem_setup(void)
106 add_memory_region(0, bcm63xx_get_memory_size(), BOOT_MEM_RAM);
108 _machine_halt = bcm63xx_machine_halt;
109 _machine_restart = __bcm63xx_machine_reboot;
110 pm_power_off = bcm63xx_machine_halt;
113 ioport_resource.start = 0;
114 ioport_resource.end = ~0;
119 int __init bcm63xx_register_devices(void)
121 return board_register_devices();
124 arch_initcall(bcm63xx_register_devices);