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Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179/* * This file is subject to the terms and conditions of the GNU General Public * License. See the file "COPYING" in the main directory of this archive * for more details. * * Copyright (C) 2008 Maxime Bizon <mbizon@freebox.fr> */
#include <linux/init.h>#include <linux/kernel.h>#include <linux/delay.h>#include <linux/memblock.h>#include <linux/ioport.h>#include <linux/pm.h>#include <asm/bmips.h>#include <asm/bootinfo.h>#include <asm/time.h>#include <asm/reboot.h>#include <asm/cacheflush.h>#include <bcm63xx_board.h>#include <bcm63xx_cpu.h>#include <bcm63xx_regs.h>#include <bcm63xx_io.h>#include <bcm63xx_gpio.h>
/* * CBR addr doesn't change and we can cache it. * For broken SoC/Bootloader CBR addr might also be provided via DT * with "brcm,bmips-cbr-reg" in the "cpus" node. */void __iomem *bmips_cbr_addr __read_mostly;
void bcm63xx_machine_halt(void){ pr_info("System halted\n"); while (1) ;}
static void bcm6348_a1_reboot(void){ u32 reg;
/* soft reset all blocks */ pr_info("soft-resetting all blocks ...\n"); reg = bcm_perf_readl(PERF_SOFTRESET_REG); reg &= ~SOFTRESET_6348_ALL; bcm_perf_writel(reg, PERF_SOFTRESET_REG); mdelay(10);
reg = bcm_perf_readl(PERF_SOFTRESET_REG); reg |= SOFTRESET_6348_ALL; bcm_perf_writel(reg, PERF_SOFTRESET_REG); mdelay(10);
/* Jump to the power on address. */ pr_info("jumping to reset vector.\n"); /* set high vectors (base at 0xbfc00000 */ set_c0_status(ST0_BEV | ST0_ERL); /* run uncached in kseg0 */ change_c0_config(CONF_CM_CMASK, CONF_CM_UNCACHED); __flush_cache_all(); /* remove all wired TLB entries */ write_c0_wired(0); __asm__ __volatile__( "jr\t%0" : : "r" (0xbfc00000)); while (1) ;}
void bcm63xx_machine_reboot(void){ u32 reg, perf_regs[2] = { 0, 0 }; unsigned int i;
/* mask and clear all external irq */ switch (bcm63xx_get_cpu_id()) { case BCM3368_CPU_ID: perf_regs[0] = PERF_EXTIRQ_CFG_REG_3368; break; case BCM6328_CPU_ID: perf_regs[0] = PERF_EXTIRQ_CFG_REG_6328; break; case BCM6338_CPU_ID: perf_regs[0] = PERF_EXTIRQ_CFG_REG_6338; break; case BCM6345_CPU_ID: perf_regs[0] = PERF_EXTIRQ_CFG_REG_6345; break; case BCM6348_CPU_ID: perf_regs[0] = PERF_EXTIRQ_CFG_REG_6348; break; case BCM6358_CPU_ID: perf_regs[0] = PERF_EXTIRQ_CFG_REG_6358; break; case BCM6362_CPU_ID: perf_regs[0] = PERF_EXTIRQ_CFG_REG_6362; break; }
for (i = 0; i < 2; i++) { if (!perf_regs[i]) break;
reg = bcm_perf_readl(perf_regs[i]); if (BCMCPU_IS_6348()) { reg &= ~EXTIRQ_CFG_MASK_ALL_6348; reg |= EXTIRQ_CFG_CLEAR_ALL_6348; } else { reg &= ~EXTIRQ_CFG_MASK_ALL; reg |= EXTIRQ_CFG_CLEAR_ALL; } bcm_perf_writel(reg, perf_regs[i]); }
if (BCMCPU_IS_6348() && (bcm63xx_get_cpu_rev() == 0xa1)) bcm6348_a1_reboot();
pr_info("triggering watchdog soft-reset...\n"); if (BCMCPU_IS_6328()) { bcm_wdt_writel(1, WDT_SOFTRESET_REG); } else { reg = bcm_perf_readl(PERF_SYS_PLL_CTL_REG); reg |= SYS_PLL_SOFT_RESET; bcm_perf_writel(reg, PERF_SYS_PLL_CTL_REG); } while (1) ;}
static void __bcm63xx_machine_reboot(char *p){ bcm63xx_machine_reboot();}
/* * return system type in /proc/cpuinfo */const char *get_system_type(void){ static char buf[128]; snprintf(buf, sizeof(buf), "bcm63xx/%s (0x%04x/0x%02X)", board_get_name(), bcm63xx_get_cpu_id(), bcm63xx_get_cpu_rev()); return buf;}
void __init plat_time_init(void){ mips_hpt_frequency = bcm63xx_get_cpu_freq() / 2;}
void __init plat_mem_setup(void){ memblock_add(0, bcm63xx_get_memory_size());
_machine_halt = bcm63xx_machine_halt; _machine_restart = __bcm63xx_machine_reboot; pm_power_off = bcm63xx_machine_halt;
set_io_port_base(0); ioport_resource.start = 0; ioport_resource.end = ~0;
board_setup();}
static int __init bcm63xx_register_devices(void){ /* register gpiochip */ bcm63xx_gpio_init();
return board_register_devices();}
arch_initcall(bcm63xx_register_devices);