cregit-Linux how code gets into the kernel

Release 4.14 arch/mips/netlogic/xlr/setup.c

/*
 * Copyright 2003-2011 NetLogic Microsystems, Inc. (NetLogic). All rights
 * reserved.
 *
 * This software is available to you under a choice of one of two
 * licenses.  You may choose to be licensed under the terms of the GNU
 * General Public License (GPL) Version 2, available from the file
 * COPYING in the main directory of this source tree, or the NetLogic
 * license below:
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in
 *    the documentation and/or other materials provided with the
 *    distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY NETLOGIC ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL NETLOGIC OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
 * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
 * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
 * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#include <linux/kernel.h>
#include <linux/serial_8250.h>
#include <linux/pm.h>

#include <asm/idle.h>
#include <asm/reboot.h>
#include <asm/time.h>
#include <asm/bootinfo.h>

#include <asm/netlogic/interrupt.h>
#include <asm/netlogic/psb-bootinfo.h>
#include <asm/netlogic/haldefs.h>
#include <asm/netlogic/common.h>

#include <asm/netlogic/xlr/xlr.h>
#include <asm/netlogic/xlr/iomap.h>
#include <asm/netlogic/xlr/pic.h>
#include <asm/netlogic/xlr/gpio.h>
#include <asm/netlogic/xlr/fmn.h>


uint64_t nlm_io_base = DEFAULT_NETLOGIC_IO_BASE;

struct psb_info nlm_prom_info;

/* default to uniprocessor */

unsigned int  nlm_threads_per_core = 1;

struct nlm_soc_info nlm_nodes[NLM_NR_NODES];

cpumask_t nlm_cpumask = CPU_MASK_CPU0;


static void nlm_linux_exit(void) { uint64_t gpiobase; gpiobase = nlm_mmio_base(NETLOGIC_IO_GPIO_OFFSET); /* trigger a chip reset by writing 1 to GPIO_SWRESET_REG */ nlm_write_reg(gpiobase, GPIO_SWRESET_REG, 1); for ( ; ; ) cpu_wait(); }

Contributors

PersonTokensPropCommitsCommitProp
Jayachandran C36100.00%3100.00%
Total36100.00%3100.00%


void __init plat_mem_setup(void) { _machine_restart = (void (*)(char *))nlm_linux_exit; _machine_halt = nlm_linux_exit; pm_power_off = nlm_linux_exit; }

Contributors

PersonTokensPropCommitsCommitProp
Jayachandran C30100.00%1100.00%
Total30100.00%1100.00%


const char *get_system_type(void) { return "Netlogic XLR/XLS Series"; }

Contributors

PersonTokensPropCommitsCommitProp
Jayachandran C12100.00%1100.00%
Total12100.00%1100.00%


unsigned int nlm_get_cpu_frequency(void) { return (unsigned int)nlm_prom_info.cpu_frequency; }

Contributors

PersonTokensPropCommitsCommitProp
Jayachandran C17100.00%1100.00%
Total17100.00%1100.00%


void __init prom_free_prom_memory(void) { /* Nothing yet */ }

Contributors

PersonTokensPropCommitsCommitProp
Jayachandran C9100.00%1100.00%
Total9100.00%1100.00%


void nlm_percpu_init(int hwcpuid) { if (hwcpuid % 4 == 0) xlr_percpu_fmn_init(); }

Contributors

PersonTokensPropCommitsCommitProp
Ganesan Ramalingam19100.00%1100.00%
Total19100.00%1100.00%


static void __init build_arcs_cmdline(int *argv) { int i, remain, len; char *arg; remain = sizeof(arcs_cmdline) - 1; arcs_cmdline[0] = '\0'; for (i = 0; argv[i] != 0; i++) { arg = (char *)(long)argv[i]; len = strlen(arg); if (len + 1 > remain) break; strcat(arcs_cmdline, arg); strcat(arcs_cmdline, " "); remain -= len + 1; } /* Add the default options here */ if ((strstr(arcs_cmdline, "console=")) == NULL) { arg = "console=ttyS0,38400 "; len = strlen(arg); if (len > remain) goto fail; strcat(arcs_cmdline, arg); remain -= len; } #ifdef CONFIG_BLK_DEV_INITRD if ((strstr(arcs_cmdline, "rdinit=")) == NULL) { arg = "rdinit=/sbin/init "; len = strlen(arg); if (len > remain) goto fail; strcat(arcs_cmdline, arg); remain -= len; } #endif return; fail: panic("Cannot add %s, command line too big!", arg); }

Contributors

PersonTokensPropCommitsCommitProp
Jayachandran C214100.00%2100.00%
Total214100.00%2100.00%


static void prom_add_memory(void) { struct nlm_boot_mem_map *bootm; u64 start, size; u64 pref_backup = 512; /* avoid pref walking beyond end */ int i; bootm = (void *)(long)nlm_prom_info.psb_mem_map; for (i = 0; i < bootm->nr_map; i++) { if (bootm->map[i].type != BOOT_MEM_RAM) continue; start = bootm->map[i].addr; size = bootm->map[i].size; /* Work around for using bootloader mem */ if (i == 0 && start == 0 && size == 0x0c000000) size = 0x0ff00000; add_memory_region(start, size - pref_backup, BOOT_MEM_RAM); } }

Contributors

PersonTokensPropCommitsCommitProp
Jayachandran C123100.00%1100.00%
Total123100.00%1100.00%


static void nlm_init_node(void) { struct nlm_soc_info *nodep; nodep = nlm_current_node(); nodep->picbase = nlm_mmio_base(NETLOGIC_IO_PIC_OFFSET); nodep->ebase = read_c0_ebase() & MIPS_EBASE_BASE; spin_lock_init(&nodep->piclock); }

Contributors

PersonTokensPropCommitsCommitProp
Jayachandran C4397.73%150.00%
James Hogan12.27%150.00%
Total44100.00%2100.00%


void __init prom_init(void) { int *argv, *envp; /* passed as 32 bit ptrs */ struct psb_info *prom_infop; void *reset_vec; #ifdef CONFIG_SMP int i; #endif /* truncate to 32 bit and sign extend all args */ argv = (int *)(long)(int)fw_arg1; envp = (int *)(long)(int)fw_arg2; prom_infop = (struct psb_info *)(long)(int)fw_arg3; nlm_prom_info = *prom_infop; nlm_init_node(); /* Update reset entry point with CPU init code */ reset_vec = (void *)CKSEG1ADDR(RESET_VEC_PHYS); memset(reset_vec, 0, RESET_VEC_SIZE); memcpy(reset_vec, (void *)nlm_reset_entry, (nlm_reset_entry_end - nlm_reset_entry)); build_arcs_cmdline(argv); prom_add_memory(); #ifdef CONFIG_SMP for (i = 0; i < 32; i++) if (nlm_prom_info.online_cpu_map & (1 << i)) cpumask_set_cpu(i, &nlm_cpumask); nlm_wakeup_secondary_cpus(); register_smp_ops(&nlm_smp_ops); #endif xlr_board_info_setup(); xlr_percpu_fmn_init(); }

Contributors

PersonTokensPropCommitsCommitProp
Jayachandran C17896.74%787.50%
Ganesan Ramalingam63.26%112.50%
Total184100.00%8100.00%


Overall Contributors

PersonTokensPropCommitsCommitProp
Jayachandran C73395.82%1076.92%
Ganesan Ramalingam283.66%17.69%
Ralf Bächle30.39%17.69%
James Hogan10.13%17.69%
Total765100.00%13100.00%
Information contained on this website is for historical information purposes only and does not indicate or represent copyright ownership.
Created with cregit.