1 files changed, 179 insertions, 0 deletions

diff --git a/arch/mips/netlogic/xlp/setup.c b/arch/mips/netlogic/xlp/setup.c
new file mode 100644
index 000000000..9adc0c1b4
--- /dev/null
+++ b/arch/mips/netlogic/xlp/setup.c
@@ -0,0 +1,179 @@
+/*
+ * 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/of_fdt.h>
+#include <linux/memblock.h>
+
+#include <asm/idle.h>
+#include <asm/reboot.h>
+#include <asm/time.h>
+#include <asm/bootinfo.h>
+
+#include <asm/netlogic/haldefs.h>
+#include <asm/netlogic/common.h>
+
+#include <asm/netlogic/xlp-hal/iomap.h>
+#include <asm/netlogic/xlp-hal/xlp.h>
+#include <asm/netlogic/xlp-hal/sys.h>
+
+uint64_t nlm_io_base;
+struct nlm_soc_info nlm_nodes[NLM_NR_NODES];
+cpumask_t nlm_cpumask = CPU_MASK_CPU0;
+unsigned int nlm_threads_per_core;
+
+static void nlm_linux_exit(void)
+{
+        uint64_t sysbase = nlm_get_node(0)->sysbase;
+
+        if (cpu_is_xlp9xx())
+                nlm_write_sys_reg(sysbase, SYS_9XX_CHIP_RESET, 1);
+        else
+                nlm_write_sys_reg(sysbase, SYS_CHIP_RESET, 1);
+        for ( ; ; )
+                cpu_wait();
+}
+
+static void nlm_fixup_mem(void)
+{
+        const int pref_backup = 512;
+        struct memblock_region *mem;
+
+        for_each_mem_region(mem) {
+                memblock_remove(mem->base + mem->size - pref_backup,
+                        pref_backup);
+        }
+}
+
+static void __init xlp_init_mem_from_bars(void)
+{
+        uint64_t map[16];
+        int i, n;
+
+        n = nlm_get_dram_map(-1, map, ARRAY_SIZE(map)); /* -1 : all nodes */
+        for (i = 0; i < n; i += 2) {
+                /* exclude 0x1000_0000-0x2000_0000, u-boot device */
+                if (map[i] <= 0x10000000 && map[i+1] > 0x10000000)
+                        map[i+1] = 0x10000000;
+                if (map[i] > 0x10000000 && map[i] < 0x20000000)
+                        map[i] = 0x20000000;
+
+                memblock_add(map[i], map[i+1] - map[i]);
+        }
+}
+
+void __init plat_mem_setup(void)
+{
+#ifdef CONFIG_SMP
+        nlm_wakeup_secondary_cpus();
+
+        /* update TLB size after waking up threads */
+        current_cpu_data.tlbsize = ((read_c0_config6() >> 16) & 0xffff) + 1;
+
+        register_smp_ops(&nlm_smp_ops);
+#endif
+        _machine_restart = (void (*)(char *))nlm_linux_exit;
+        _machine_halt   = nlm_linux_exit;
+        pm_power_off    = nlm_linux_exit;
+
+        /* memory and bootargs from DT */
+        xlp_early_init_devtree();
+
+        if (memblock_end_of_DRAM() == 0) {
+                pr_info("Using DRAM BARs for memory map.\n");
+                xlp_init_mem_from_bars();
+        }
+        /* Calculate and setup wired entries for mapped kernel */
+        nlm_fixup_mem();
+}
+
+const char *get_system_type(void)
+{
+        switch (read_c0_prid() & PRID_IMP_MASK) {
+        case PRID_IMP_NETLOGIC_XLP9XX:
+        case PRID_IMP_NETLOGIC_XLP5XX:
+        case PRID_IMP_NETLOGIC_XLP2XX:
+                return "Broadcom XLPII Series";
+        default:
+                return "Netlogic XLP Series";
+        }
+}
+
+void __init prom_free_prom_memory(void)
+{
+        /* Nothing yet */
+}
+
+void xlp_mmu_init(void)
+{
+        u32 conf4;
+
+        if (cpu_is_xlpii()) {
+                /* XLPII series has extended pagesize in config 4 */
+                conf4 = read_c0_config4() & ~0x1f00u;
+                write_c0_config4(conf4 | ((PAGE_SHIFT - 10) / 2 << 8));
+        } else {
+                /* enable extended TLB and Large Fixed TLB */
+                write_c0_config6(read_c0_config6() | 0x24);
+
+                /* set page mask of extended Fixed TLB in config7 */
+                write_c0_config7(PM_DEFAULT_MASK >>
+                        (13 + (ffz(PM_DEFAULT_MASK >> 13) / 2)));
+        }
+}
+
+void nlm_percpu_init(int hwcpuid)
+{
+}
+
+void __init prom_init(void)
+{
+        void *reset_vec;
+
+        nlm_io_base = CKSEG1ADDR(XLP_DEFAULT_IO_BASE);
+        nlm_init_boot_cpu();
+        xlp_mmu_init();
+        nlm_node_init(0);
+        xlp_dt_init((void *)(long)fw_arg0);
+
+        /* 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));
+
+#ifdef CONFIG_SMP
+        cpumask_setall(&nlm_cpumask);
+#endif
+}