x86/efi: Enforce CONFIG_RELOCATABLE for EFI boot stub
[linux/fpc-iii.git] / arch / mips / netlogic / xlp / setup.c
blob76a7131e486ee49fe5e6831f35eea11244c7c8a2
1 /*
2 * Copyright 2003-2011 NetLogic Microsystems, Inc. (NetLogic). All rights
3 * reserved.
5 * This software is available to you under a choice of one of two
6 * licenses. You may choose to be licensed under the terms of the GNU
7 * General Public License (GPL) Version 2, available from the file
8 * COPYING in the main directory of this source tree, or the NetLogic
9 * license below:
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
13 * are met:
15 * 1. Redistributions of source code must retain the above copyright
16 * notice, this list of conditions and the following disclaimer.
17 * 2. Redistributions in binary form must reproduce the above copyright
18 * notice, this list of conditions and the following disclaimer in
19 * the documentation and/or other materials provided with the
20 * distribution.
22 * THIS SOFTWARE IS PROVIDED BY NETLOGIC ``AS IS'' AND ANY EXPRESS OR
23 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
24 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25 * ARE DISCLAIMED. IN NO EVENT SHALL NETLOGIC OR CONTRIBUTORS BE LIABLE
26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
27 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
28 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
29 * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
30 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
31 * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
32 * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
35 #include <linux/kernel.h>
36 #include <linux/of_fdt.h>
38 #include <asm/idle.h>
39 #include <asm/reboot.h>
40 #include <asm/time.h>
41 #include <asm/bootinfo.h>
43 #include <asm/netlogic/haldefs.h>
44 #include <asm/netlogic/common.h>
46 #include <asm/netlogic/xlp-hal/iomap.h>
47 #include <asm/netlogic/xlp-hal/xlp.h>
48 #include <asm/netlogic/xlp-hal/sys.h>
50 uint64_t nlm_io_base;
51 struct nlm_soc_info nlm_nodes[NLM_NR_NODES];
52 cpumask_t nlm_cpumask = CPU_MASK_CPU0;
53 unsigned int nlm_threads_per_core;
55 static void nlm_linux_exit(void)
57 uint64_t sysbase = nlm_get_node(0)->sysbase;
59 nlm_write_sys_reg(sysbase, SYS_CHIP_RESET, 1);
60 for ( ; ; )
61 cpu_wait();
64 static void nlm_fixup_mem(void)
66 const int pref_backup = 512;
67 int i;
69 for (i = 0; i < boot_mem_map.nr_map; i++) {
70 if (boot_mem_map.map[i].type != BOOT_MEM_RAM)
71 continue;
72 boot_mem_map.map[i].size -= pref_backup;
76 static void __init xlp_init_mem_from_bars(void)
78 uint64_t map[16];
79 int i, n;
81 n = xlp_get_dram_map(-1, map); /* -1: info for all nodes */
82 for (i = 0; i < n; i += 2) {
83 /* exclude 0x1000_0000-0x2000_0000, u-boot device */
84 if (map[i] <= 0x10000000 && map[i+1] > 0x10000000)
85 map[i+1] = 0x10000000;
86 if (map[i] > 0x10000000 && map[i] < 0x20000000)
87 map[i] = 0x20000000;
89 add_memory_region(map[i], map[i+1] - map[i], BOOT_MEM_RAM);
93 void __init plat_mem_setup(void)
95 panic_timeout = 5;
96 _machine_restart = (void (*)(char *))nlm_linux_exit;
97 _machine_halt = nlm_linux_exit;
98 pm_power_off = nlm_linux_exit;
100 /* memory and bootargs from DT */
101 early_init_devtree(initial_boot_params);
103 if (boot_mem_map.nr_map == 0) {
104 pr_info("Using DRAM BARs for memory map.\n");
105 xlp_init_mem_from_bars();
107 /* Calculate and setup wired entries for mapped kernel */
108 nlm_fixup_mem();
111 const char *get_system_type(void)
113 switch (read_c0_prid() & 0xff00) {
114 case PRID_IMP_NETLOGIC_XLP2XX:
115 return "Broadcom XLPII Series";
116 default:
117 return "Netlogic XLP Series";
121 void __init prom_free_prom_memory(void)
123 /* Nothing yet */
126 void xlp_mmu_init(void)
128 u32 conf4;
130 if (cpu_is_xlpii()) {
131 /* XLPII series has extended pagesize in config 4 */
132 conf4 = read_c0_config4() & ~0x1f00u;
133 write_c0_config4(conf4 | ((PAGE_SHIFT - 10) / 2 << 8));
134 } else {
135 /* enable extended TLB and Large Fixed TLB */
136 write_c0_config6(read_c0_config6() | 0x24);
138 /* set page mask of extended Fixed TLB in config7 */
139 write_c0_config7(PM_DEFAULT_MASK >>
140 (13 + (ffz(PM_DEFAULT_MASK >> 13) / 2)));
144 void nlm_percpu_init(int hwcpuid)
148 void __init prom_init(void)
150 void *reset_vec;
152 nlm_io_base = CKSEG1ADDR(XLP_DEFAULT_IO_BASE);
153 nlm_init_boot_cpu();
154 xlp_mmu_init();
155 nlm_node_init(0);
156 xlp_dt_init((void *)(long)fw_arg0);
158 /* Update reset entry point with CPU init code */
159 reset_vec = (void *)CKSEG1ADDR(RESET_VEC_PHYS);
160 memset(reset_vec, 0, RESET_VEC_SIZE);
161 memcpy(reset_vec, (void *)nlm_reset_entry,
162 (nlm_reset_entry_end - nlm_reset_entry));
164 #ifdef CONFIG_SMP
165 cpumask_setall(&nlm_cpumask);
166 nlm_wakeup_secondary_cpus();
168 /* update TLB size after waking up threads */
169 current_cpu_data.tlbsize = ((read_c0_config6() >> 16) & 0xffff) + 1;
171 register_smp_ops(&nlm_smp_ops);
172 #endif