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206 lines
5.5 KiB
206 lines
5.5 KiB
/* |
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* Copyright 2003-2011 NetLogic Microsystems, Inc. (NetLogic). All rights |
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* reserved. |
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* |
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* This software is available to you under a choice of one of two |
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* licenses. You may choose to be licensed under the terms of the GNU |
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* General Public License (GPL) Version 2, available from the file |
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* COPYING in the main directory of this source tree, or the NetLogic |
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* license below: |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions |
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* are met: |
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* |
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* 1. Redistributions of source code must retain the above copyright |
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* notice, this list of conditions and the following disclaimer. |
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* 2. Redistributions in binary form must reproduce the above copyright |
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* notice, this list of conditions and the following disclaimer in |
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* the documentation and/or other materials provided with the |
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* distribution. |
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* |
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* THIS SOFTWARE IS PROVIDED BY NETLOGIC ``AS IS'' AND ANY EXPRESS OR |
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED |
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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* ARE DISCLAIMED. IN NO EVENT SHALL NETLOGIC OR CONTRIBUTORS BE LIABLE |
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR |
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* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE |
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* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN |
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* IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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*/ |
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#include <linux/kernel.h> |
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#include <linux/serial_8250.h> |
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#include <linux/memblock.h> |
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#include <linux/pm.h> |
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#include <asm/idle.h> |
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#include <asm/reboot.h> |
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#include <asm/time.h> |
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#include <asm/bootinfo.h> |
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#include <asm/netlogic/interrupt.h> |
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#include <asm/netlogic/psb-bootinfo.h> |
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#include <asm/netlogic/haldefs.h> |
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#include <asm/netlogic/common.h> |
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#include <asm/netlogic/xlr/xlr.h> |
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#include <asm/netlogic/xlr/iomap.h> |
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#include <asm/netlogic/xlr/pic.h> |
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#include <asm/netlogic/xlr/gpio.h> |
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#include <asm/netlogic/xlr/fmn.h> |
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uint64_t nlm_io_base = DEFAULT_NETLOGIC_IO_BASE; |
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struct psb_info nlm_prom_info; |
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/* default to uniprocessor */ |
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unsigned int nlm_threads_per_core = 1; |
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struct nlm_soc_info nlm_nodes[NLM_NR_NODES]; |
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cpumask_t nlm_cpumask = CPU_MASK_CPU0; |
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static void nlm_linux_exit(void) |
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{ |
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uint64_t gpiobase; |
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gpiobase = nlm_mmio_base(NETLOGIC_IO_GPIO_OFFSET); |
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/* trigger a chip reset by writing 1 to GPIO_SWRESET_REG */ |
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nlm_write_reg(gpiobase, GPIO_SWRESET_REG, 1); |
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for ( ; ; ) |
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cpu_wait(); |
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} |
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void __init plat_mem_setup(void) |
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{ |
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_machine_restart = (void (*)(char *))nlm_linux_exit; |
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_machine_halt = nlm_linux_exit; |
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pm_power_off = nlm_linux_exit; |
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} |
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const char *get_system_type(void) |
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{ |
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return "Netlogic XLR/XLS Series"; |
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} |
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unsigned int nlm_get_cpu_frequency(void) |
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{ |
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return (unsigned int)nlm_prom_info.cpu_frequency; |
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} |
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void nlm_percpu_init(int hwcpuid) |
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{ |
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if (hwcpuid % 4 == 0) |
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xlr_percpu_fmn_init(); |
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} |
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static void __init build_arcs_cmdline(int *argv) |
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{ |
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int i, remain, len; |
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char *arg; |
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remain = sizeof(arcs_cmdline) - 1; |
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arcs_cmdline[0] = '\0'; |
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for (i = 0; argv[i] != 0; i++) { |
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arg = (char *)(long)argv[i]; |
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len = strlen(arg); |
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if (len + 1 > remain) |
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break; |
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strcat(arcs_cmdline, arg); |
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strcat(arcs_cmdline, " "); |
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remain -= len + 1; |
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} |
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/* Add the default options here */ |
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if ((strstr(arcs_cmdline, "console=")) == NULL) { |
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arg = "console=ttyS0,38400 "; |
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len = strlen(arg); |
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if (len > remain) |
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goto fail; |
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strcat(arcs_cmdline, arg); |
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remain -= len; |
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} |
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#ifdef CONFIG_BLK_DEV_INITRD |
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if ((strstr(arcs_cmdline, "rdinit=")) == NULL) { |
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arg = "rdinit=/sbin/init "; |
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len = strlen(arg); |
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if (len > remain) |
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goto fail; |
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strcat(arcs_cmdline, arg); |
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remain -= len; |
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} |
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#endif |
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return; |
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fail: |
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panic("Cannot add %s, command line too big!", arg); |
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} |
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static void prom_add_memory(void) |
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{ |
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struct nlm_boot_mem_map *bootm; |
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u64 start, size; |
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u64 pref_backup = 512; /* avoid pref walking beyond end */ |
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int i; |
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bootm = (void *)(long)nlm_prom_info.psb_mem_map; |
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for (i = 0; i < bootm->nr_map; i++) { |
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if (bootm->map[i].type != NLM_BOOT_MEM_RAM) |
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continue; |
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start = bootm->map[i].addr; |
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size = bootm->map[i].size; |
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/* Work around for using bootloader mem */ |
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if (i == 0 && start == 0 && size == 0x0c000000) |
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size = 0x0ff00000; |
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memblock_add(start, size - pref_backup); |
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} |
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} |
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static void nlm_init_node(void) |
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{ |
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struct nlm_soc_info *nodep; |
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nodep = nlm_current_node(); |
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nodep->picbase = nlm_mmio_base(NETLOGIC_IO_PIC_OFFSET); |
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nodep->ebase = read_c0_ebase() & MIPS_EBASE_BASE; |
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spin_lock_init(&nodep->piclock); |
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} |
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void __init prom_init(void) |
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{ |
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int *argv, *envp; /* passed as 32 bit ptrs */ |
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struct psb_info *prom_infop; |
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void *reset_vec; |
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#ifdef CONFIG_SMP |
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int i; |
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#endif |
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/* truncate to 32 bit and sign extend all args */ |
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argv = (int *)(long)(int)fw_arg1; |
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envp = (int *)(long)(int)fw_arg2; |
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prom_infop = (struct psb_info *)(long)(int)fw_arg3; |
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nlm_prom_info = *prom_infop; |
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nlm_init_node(); |
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/* Update reset entry point with CPU init code */ |
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reset_vec = (void *)CKSEG1ADDR(RESET_VEC_PHYS); |
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memset(reset_vec, 0, RESET_VEC_SIZE); |
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memcpy(reset_vec, (void *)nlm_reset_entry, |
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(nlm_reset_entry_end - nlm_reset_entry)); |
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build_arcs_cmdline(argv); |
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prom_add_memory(); |
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#ifdef CONFIG_SMP |
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for (i = 0; i < 32; i++) |
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if (nlm_prom_info.online_cpu_map & (1 << i)) |
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cpumask_set_cpu(i, &nlm_cpumask); |
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nlm_wakeup_secondary_cpus(); |
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register_smp_ops(&nlm_smp_ops); |
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#endif |
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xlr_board_info_setup(); |
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xlr_percpu_fmn_init(); |
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}
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