/*
* 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" (0 xbfc00000));
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() == 0 xa1))
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);
Messung V0.5 in Prozent C=95 H=93 G=93
¤ Dauer der Verarbeitung: 0.11 Sekunden
(vorverarbeitet am 2026-09-28)
¤
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