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@@ -0,0 +1,618 @@
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+/*
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+ * Copyright (c) 2005-2006 Michael Ellerman, IBM Corporation
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+ *
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+ * Description:
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+ * This file contains all the routines to build a flattened device
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+ * tree for a legacy iSeries machine.
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+ *
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+ * This program is free software; you can redistribute it and/or
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+ * modify it under the terms of the GNU General Public License
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+ * as published by the Free Software Foundation; either version
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+ * 2 of the License, or (at your option) any later version.
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+ */
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+
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+#undef DEBUG
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+
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+#include <linux/types.h>
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+#include <linux/init.h>
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+#include <linux/pci.h>
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+#include <linux/pci_regs.h>
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+#include <linux/pci_ids.h>
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+#include <linux/threads.h>
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+#include <linux/bitops.h>
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+#include <linux/string.h>
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+#include <linux/kernel.h>
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+#include <linux/if_ether.h> /* ETH_ALEN */
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+
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+#include <asm/machdep.h>
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+#include <asm/prom.h>
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+#include <asm/lppaca.h>
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+#include <asm/page.h>
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+#include <asm/cputable.h>
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+#include <asm/abs_addr.h>
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+#include <asm/iseries/hv_types.h>
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+#include <asm/iseries/hv_lp_config.h>
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+#include <asm/iseries/hv_call_xm.h>
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+#include <asm/iseries/it_exp_vpd_panel.h>
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+#include <asm/udbg.h>
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+
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+#include "processor_vpd.h"
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+#include "call_hpt.h"
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+#include "call_pci.h"
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+#include "pci.h"
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+
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+#ifdef DEBUG
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+#define DBG(fmt...) udbg_printf(fmt)
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+#else
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+#define DBG(fmt...)
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+#endif
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+
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+struct blob {
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+ unsigned char data[PAGE_SIZE * 2];
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+ unsigned long next;
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+};
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+
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+struct iseries_flat_dt {
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+ struct boot_param_header header;
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+ u64 reserve_map[2];
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+ struct blob dt;
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+ struct blob strings;
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+};
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+
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+static struct iseries_flat_dt iseries_dt;
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+
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+static void __init dt_init(struct iseries_flat_dt *dt)
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+{
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+ dt->header.off_mem_rsvmap =
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+ offsetof(struct iseries_flat_dt, reserve_map);
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+ dt->header.off_dt_struct = offsetof(struct iseries_flat_dt, dt);
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+ dt->header.off_dt_strings = offsetof(struct iseries_flat_dt, strings);
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+ dt->header.totalsize = sizeof(struct iseries_flat_dt);
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+ dt->header.dt_strings_size = sizeof(struct blob);
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+
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+ /* There is no notion of hardware cpu id on iSeries */
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+ dt->header.boot_cpuid_phys = smp_processor_id();
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+
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+ dt->dt.next = (unsigned long)&dt->dt.data;
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+ dt->strings.next = (unsigned long)&dt->strings.data;
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+
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+ dt->header.magic = OF_DT_HEADER;
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+ dt->header.version = 0x10;
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+ dt->header.last_comp_version = 0x10;
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+
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+ dt->reserve_map[0] = 0;
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+ dt->reserve_map[1] = 0;
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+}
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+
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+static void __init dt_check_blob(struct blob *b)
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+{
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+ if (b->next >= (unsigned long)&b->next) {
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+ DBG("Ran out of space in flat device tree blob!\n");
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+ BUG();
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+ }
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+}
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+
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+static void __init dt_push_u32(struct iseries_flat_dt *dt, u32 value)
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+{
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+ *((u32*)dt->dt.next) = value;
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+ dt->dt.next += sizeof(u32);
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+
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+ dt_check_blob(&dt->dt);
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+}
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+
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+#ifdef notyet
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+static void __init dt_push_u64(struct iseries_flat_dt *dt, u64 value)
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+{
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+ *((u64*)dt->dt.next) = value;
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+ dt->dt.next += sizeof(u64);
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+
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+ dt_check_blob(&dt->dt);
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+}
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+#endif
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+
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+static unsigned long __init dt_push_bytes(struct blob *blob, char *data, int len)
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+{
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+ unsigned long start = blob->next - (unsigned long)blob->data;
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+
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+ memcpy((char *)blob->next, data, len);
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+ blob->next = _ALIGN(blob->next + len, 4);
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+
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+ dt_check_blob(blob);
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+
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+ return start;
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+}
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+
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+static void __init dt_start_node(struct iseries_flat_dt *dt, char *name)
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+{
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+ dt_push_u32(dt, OF_DT_BEGIN_NODE);
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+ dt_push_bytes(&dt->dt, name, strlen(name) + 1);
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+}
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+
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+#define dt_end_node(dt) dt_push_u32(dt, OF_DT_END_NODE)
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+
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+static void __init dt_prop(struct iseries_flat_dt *dt, char *name,
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+ char *data, int len)
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+{
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+ unsigned long offset;
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+
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+ dt_push_u32(dt, OF_DT_PROP);
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+
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+ /* Length of the data */
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+ dt_push_u32(dt, len);
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+
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+ /* Put the property name in the string blob. */
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+ offset = dt_push_bytes(&dt->strings, name, strlen(name) + 1);
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+
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+ /* The offset of the properties name in the string blob. */
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+ dt_push_u32(dt, (u32)offset);
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+
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+ /* The actual data. */
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+ dt_push_bytes(&dt->dt, data, len);
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+}
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+
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+static void __init dt_prop_str(struct iseries_flat_dt *dt, char *name,
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+ char *data)
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+{
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+ dt_prop(dt, name, data, strlen(data) + 1); /* + 1 for NULL */
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+}
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+
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+static void __init dt_prop_u32(struct iseries_flat_dt *dt, char *name, u32 data)
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+{
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+ dt_prop(dt, name, (char *)&data, sizeof(u32));
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+}
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+
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+static void __init dt_prop_u64(struct iseries_flat_dt *dt, char *name, u64 data)
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+{
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+ dt_prop(dt, name, (char *)&data, sizeof(u64));
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+}
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+
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+static void __init dt_prop_u64_list(struct iseries_flat_dt *dt, char *name,
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+ u64 *data, int n)
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+{
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+ dt_prop(dt, name, (char *)data, sizeof(u64) * n);
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+}
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+
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+static void __init dt_prop_u32_list(struct iseries_flat_dt *dt, char *name,
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+ u32 *data, int n)
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+{
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+ dt_prop(dt, name, (char *)data, sizeof(u32) * n);
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+}
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+
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+#ifdef notyet
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+static void __init dt_prop_empty(struct iseries_flat_dt *dt, char *name)
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+{
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+ dt_prop(dt, name, NULL, 0);
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+}
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+#endif
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+
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+static void __init dt_cpus(struct iseries_flat_dt *dt)
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+{
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+ unsigned char buf[32];
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+ unsigned char *p;
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+ unsigned int i, index;
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+ struct IoHriProcessorVpd *d;
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+ u32 pft_size[2];
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+
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+ /* yuck */
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+ snprintf(buf, 32, "PowerPC,%s", cur_cpu_spec->cpu_name);
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+ p = strchr(buf, ' ');
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+ if (!p) p = buf + strlen(buf);
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+
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+ dt_start_node(dt, "cpus");
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+ dt_prop_u32(dt, "#address-cells", 1);
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+ dt_prop_u32(dt, "#size-cells", 0);
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+
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+ pft_size[0] = 0; /* NUMA CEC cookie, 0 for non NUMA */
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+ pft_size[1] = __ilog2(HvCallHpt_getHptPages() * HW_PAGE_SIZE);
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+
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+ for (i = 0; i < NR_CPUS; i++) {
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+ if (lppaca[i].dyn_proc_status >= 2)
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+ continue;
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+
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+ snprintf(p, 32 - (p - buf), "@%d", i);
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+ dt_start_node(dt, buf);
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+
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+ dt_prop_str(dt, "device_type", "cpu");
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+
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+ index = lppaca[i].dyn_hv_phys_proc_index;
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+ d = &xIoHriProcessorVpd[index];
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+
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+ dt_prop_u32(dt, "i-cache-size", d->xInstCacheSize * 1024);
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+ dt_prop_u32(dt, "i-cache-line-size", d->xInstCacheOperandSize);
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+
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+ dt_prop_u32(dt, "d-cache-size", d->xDataL1CacheSizeKB * 1024);
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+ dt_prop_u32(dt, "d-cache-line-size", d->xDataCacheOperandSize);
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+
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+ /* magic conversions to Hz copied from old code */
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+ dt_prop_u32(dt, "clock-frequency",
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+ ((1UL << 34) * 1000000) / d->xProcFreq);
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+ dt_prop_u32(dt, "timebase-frequency",
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+ ((1UL << 32) * 1000000) / d->xTimeBaseFreq);
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+
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+ dt_prop_u32(dt, "reg", i);
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+
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+ dt_prop_u32_list(dt, "ibm,pft-size", pft_size, 2);
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+
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+ dt_end_node(dt);
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+ }
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+
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+ dt_end_node(dt);
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+}
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+
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+static void __init dt_model(struct iseries_flat_dt *dt)
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+{
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+ char buf[16] = "IBM,";
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+
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+ /* "IBM," + mfgId[2:3] + systemSerial[1:5] */
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+ strne2a(buf + 4, xItExtVpdPanel.mfgID + 2, 2);
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+ strne2a(buf + 6, xItExtVpdPanel.systemSerial + 1, 5);
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+ buf[11] = '\0';
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+ dt_prop_str(dt, "system-id", buf);
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+
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+ /* "IBM," + machineType[0:4] */
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+ strne2a(buf + 4, xItExtVpdPanel.machineType, 4);
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+ buf[8] = '\0';
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+ dt_prop_str(dt, "model", buf);
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+
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+ dt_prop_str(dt, "compatible", "IBM,iSeries");
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+}
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+
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+static void __init dt_vdevices(struct iseries_flat_dt *dt)
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+{
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+ u32 reg = 0;
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+ HvLpIndexMap vlan_map;
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+ int i;
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+ char buf[32];
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+
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+ dt_start_node(dt, "vdevice");
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+ dt_prop_str(dt, "device_type", "vdevice");
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+ dt_prop_str(dt, "compatible", "IBM,iSeries-vdevice");
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+ dt_prop_u32(dt, "#address-cells", 1);
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+ dt_prop_u32(dt, "#size-cells", 0);
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+
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+ snprintf(buf, sizeof(buf), "vty@%08x", reg);
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+ dt_start_node(dt, buf);
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+ dt_prop_str(dt, "device_type", "serial");
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+ dt_prop_u32(dt, "reg", reg);
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+ dt_end_node(dt);
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+ reg++;
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+
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+ snprintf(buf, sizeof(buf), "v-scsi@%08x", reg);
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+ dt_start_node(dt, buf);
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+ dt_prop_str(dt, "device_type", "vscsi");
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+ dt_prop_str(dt, "compatible", "IBM,v-scsi");
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+ dt_prop_u32(dt, "reg", reg);
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+ dt_end_node(dt);
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+ reg++;
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+
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+ vlan_map = HvLpConfig_getVirtualLanIndexMap();
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+ for (i = 0; i < HVMAXARCHITECTEDVIRTUALLANS; i++) {
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+ unsigned char mac_addr[ETH_ALEN];
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+
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+ if ((vlan_map & (0x8000 >> i)) == 0)
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+ continue;
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+ snprintf(buf, 32, "l-lan@%08x", reg + i);
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+ dt_start_node(dt, buf);
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+ dt_prop_str(dt, "device_type", "network");
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+ dt_prop_str(dt, "compatible", "IBM,iSeries-l-lan");
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+ dt_prop_u32(dt, "reg", reg + i);
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+ dt_prop_u32(dt, "linux,unit_address", i);
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+
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+ mac_addr[0] = 0x02;
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+ mac_addr[1] = 0x01;
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+ mac_addr[2] = 0xff;
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+ mac_addr[3] = i;
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+ mac_addr[4] = 0xff;
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+ mac_addr[5] = HvLpConfig_getLpIndex_outline();
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+ dt_prop(dt, "local-mac-address", (char *)mac_addr, ETH_ALEN);
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+ dt_prop(dt, "mac-address", (char *)mac_addr, ETH_ALEN);
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+ dt_prop_u32(dt, "max-frame-size", 9000);
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+ dt_prop_u32(dt, "address-bits", 48);
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+
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+ dt_end_node(dt);
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+ }
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+ reg += HVMAXARCHITECTEDVIRTUALLANS;
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+
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+ for (i = 0; i < HVMAXARCHITECTEDVIRTUALDISKS; i++) {
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+ snprintf(buf, 32, "viodasd@%08x", reg + i);
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+ dt_start_node(dt, buf);
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+ dt_prop_str(dt, "device_type", "block");
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+ dt_prop_str(dt, "compatible", "IBM,iSeries-viodasd");
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+ dt_prop_u32(dt, "reg", reg + i);
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+ dt_prop_u32(dt, "linux,unit_address", i);
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+ dt_end_node(dt);
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+ }
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+ reg += HVMAXARCHITECTEDVIRTUALDISKS;
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+ for (i = 0; i < HVMAXARCHITECTEDVIRTUALCDROMS; i++) {
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+ snprintf(buf, 32, "viocd@%08x", reg + i);
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+ dt_start_node(dt, buf);
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+ dt_prop_str(dt, "device_type", "block");
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+ dt_prop_str(dt, "compatible", "IBM,iSeries-viocd");
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+ dt_prop_u32(dt, "reg", reg + i);
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+ dt_prop_u32(dt, "linux,unit_address", i);
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+ dt_end_node(dt);
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+ }
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+ reg += HVMAXARCHITECTEDVIRTUALCDROMS;
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+ for (i = 0; i < HVMAXARCHITECTEDVIRTUALTAPES; i++) {
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+ snprintf(buf, 32, "viotape@%08x", reg + i);
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+ dt_start_node(dt, buf);
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+ dt_prop_str(dt, "device_type", "byte");
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+ dt_prop_str(dt, "compatible", "IBM,iSeries-viotape");
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+ dt_prop_u32(dt, "reg", reg + i);
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+ dt_prop_u32(dt, "linux,unit_address", i);
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+ dt_end_node(dt);
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+ }
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+
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+ dt_end_node(dt);
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+}
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+
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+struct pci_class_name {
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+ u16 code;
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+ char *name;
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+ char *type;
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+};
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+
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+static struct pci_class_name __initdata pci_class_name[] = {
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+ { PCI_CLASS_NETWORK_ETHERNET, "ethernet", "network" },
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+};
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+
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+static struct pci_class_name * __init dt_find_pci_class_name(u16 class_code)
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+{
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+ struct pci_class_name *cp;
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+
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+ for (cp = pci_class_name;
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+ cp < &pci_class_name[ARRAY_SIZE(pci_class_name)]; cp++)
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+ if (cp->code == class_code)
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+ return cp;
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+ return NULL;
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+}
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+
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+/*
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+ * This assumes that the node slot is always on the primary bus!
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+ */
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+static void __init scan_bridge_slot(struct iseries_flat_dt *dt,
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+ HvBusNumber bus, struct HvCallPci_BridgeInfo *bridge_info)
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+{
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+ HvSubBusNumber sub_bus = bridge_info->subBusNumber;
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+ u16 vendor_id;
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+ u16 device_id;
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+ u32 class_id;
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+ int err;
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+ char buf[32];
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|
|
+ u32 reg[5];
|
|
|
+ int id_sel = ISERIES_GET_DEVICE_FROM_SUBBUS(sub_bus);
|
|
|
+ int function = ISERIES_GET_FUNCTION_FROM_SUBBUS(sub_bus);
|
|
|
+ HvAgentId eads_id_sel = ISERIES_PCI_AGENTID(id_sel, function);
|
|
|
+ u8 devfn;
|
|
|
+ struct pci_class_name *cp;
|
|
|
+
|
|
|
+ /*
|
|
|
+ * Connect all functions of any device found.
|
|
|
+ */
|
|
|
+ for (id_sel = 1; id_sel <= bridge_info->maxAgents; id_sel++) {
|
|
|
+ for (function = 0; function < 8; function++) {
|
|
|
+ HvAgentId agent_id = ISERIES_PCI_AGENTID(id_sel,
|
|
|
+ function);
|
|
|
+ err = HvCallXm_connectBusUnit(bus, sub_bus,
|
|
|
+ agent_id, 0);
|
|
|
+ if (err) {
|
|
|
+ if (err != 0x302)
|
|
|
+ printk(KERN_DEBUG
|
|
|
+ "connectBusUnit(%x, %x, %x) "
|
|
|
+ "== %x\n",
|
|
|
+ bus, sub_bus, agent_id, err);
|
|
|
+ continue;
|
|
|
+ }
|
|
|
+
|
|
|
+ err = HvCallPci_configLoad16(bus, sub_bus, agent_id,
|
|
|
+ PCI_VENDOR_ID, &vendor_id);
|
|
|
+ if (err) {
|
|
|
+ printk(KERN_DEBUG
|
|
|
+ "ReadVendor(%x, %x, %x) == %x\n",
|
|
|
+ bus, sub_bus, agent_id, err);
|
|
|
+ continue;
|
|
|
+ }
|
|
|
+ err = HvCallPci_configLoad16(bus, sub_bus, agent_id,
|
|
|
+ PCI_DEVICE_ID, &device_id);
|
|
|
+ if (err) {
|
|
|
+ printk(KERN_DEBUG
|
|
|
+ "ReadDevice(%x, %x, %x) == %x\n",
|
|
|
+ bus, sub_bus, agent_id, err);
|
|
|
+ continue;
|
|
|
+ }
|
|
|
+ err = HvCallPci_configLoad32(bus, sub_bus, agent_id,
|
|
|
+ PCI_CLASS_REVISION , &class_id);
|
|
|
+ if (err) {
|
|
|
+ printk(KERN_DEBUG
|
|
|
+ "ReadClass(%x, %x, %x) == %x\n",
|
|
|
+ bus, sub_bus, agent_id, err);
|
|
|
+ continue;
|
|
|
+ }
|
|
|
+
|
|
|
+ devfn = PCI_DEVFN(ISERIES_ENCODE_DEVICE(eads_id_sel),
|
|
|
+ function);
|
|
|
+ cp = dt_find_pci_class_name(class_id >> 16);
|
|
|
+ if (cp && cp->name)
|
|
|
+ strncpy(buf, cp->name, sizeof(buf) - 1);
|
|
|
+ else
|
|
|
+ snprintf(buf, sizeof(buf), "pci%x,%x",
|
|
|
+ vendor_id, device_id);
|
|
|
+ buf[sizeof(buf) - 1] = '\0';
|
|
|
+ snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
|
|
|
+ "@%x", PCI_SLOT(devfn));
|
|
|
+ buf[sizeof(buf) - 1] = '\0';
|
|
|
+ if (function != 0)
|
|
|
+ snprintf(buf + strlen(buf),
|
|
|
+ sizeof(buf) - strlen(buf),
|
|
|
+ ",%x", function);
|
|
|
+ dt_start_node(dt, buf);
|
|
|
+ reg[0] = (bus << 16) | (devfn << 8);
|
|
|
+ reg[1] = 0;
|
|
|
+ reg[2] = 0;
|
|
|
+ reg[3] = 0;
|
|
|
+ reg[4] = 0;
|
|
|
+ dt_prop_u32_list(dt, "reg", reg, 5);
|
|
|
+ if (cp && (cp->type || cp->name))
|
|
|
+ dt_prop_str(dt, "device_type",
|
|
|
+ cp->type ? cp->type : cp->name);
|
|
|
+ dt_prop_u32(dt, "vendor-id", vendor_id);
|
|
|
+ dt_prop_u32(dt, "device-id", device_id);
|
|
|
+ dt_prop_u32(dt, "class-code", class_id >> 8);
|
|
|
+ dt_prop_u32(dt, "revision-id", class_id & 0xff);
|
|
|
+ dt_prop_u32(dt, "linux,subbus", sub_bus);
|
|
|
+ dt_prop_u32(dt, "linux,agent-id", agent_id);
|
|
|
+ dt_prop_u32(dt, "linux,logical-slot-number",
|
|
|
+ bridge_info->logicalSlotNumber);
|
|
|
+ dt_end_node(dt);
|
|
|
+
|
|
|
+ }
|
|
|
+ }
|
|
|
+}
|
|
|
+
|
|
|
+static void __init scan_bridge(struct iseries_flat_dt *dt, HvBusNumber bus,
|
|
|
+ HvSubBusNumber sub_bus, int id_sel)
|
|
|
+{
|
|
|
+ struct HvCallPci_BridgeInfo bridge_info;
|
|
|
+ HvAgentId agent_id;
|
|
|
+ int function;
|
|
|
+ int ret;
|
|
|
+
|
|
|
+ /* Note: hvSubBus and irq is always be 0 at this level! */
|
|
|
+ for (function = 0; function < 8; ++function) {
|
|
|
+ agent_id = ISERIES_PCI_AGENTID(id_sel, function);
|
|
|
+ ret = HvCallXm_connectBusUnit(bus, sub_bus, agent_id, 0);
|
|
|
+ if (ret != 0) {
|
|
|
+ if (ret != 0xb)
|
|
|
+ printk(KERN_DEBUG "connectBusUnit(%x, %x, %x) "
|
|
|
+ "== %x\n",
|
|
|
+ bus, sub_bus, agent_id, ret);
|
|
|
+ continue;
|
|
|
+ }
|
|
|
+ printk("found device at bus %d idsel %d func %d (AgentId %x)\n",
|
|
|
+ bus, id_sel, function, agent_id);
|
|
|
+ ret = HvCallPci_getBusUnitInfo(bus, sub_bus, agent_id,
|
|
|
+ iseries_hv_addr(&bridge_info),
|
|
|
+ sizeof(struct HvCallPci_BridgeInfo));
|
|
|
+ if (ret != 0)
|
|
|
+ continue;
|
|
|
+ printk("bridge info: type %x subbus %x "
|
|
|
+ "maxAgents %x maxsubbus %x logslot %x\n",
|
|
|
+ bridge_info.busUnitInfo.deviceType,
|
|
|
+ bridge_info.subBusNumber,
|
|
|
+ bridge_info.maxAgents,
|
|
|
+ bridge_info.maxSubBusNumber,
|
|
|
+ bridge_info.logicalSlotNumber);
|
|
|
+ if (bridge_info.busUnitInfo.deviceType ==
|
|
|
+ HvCallPci_BridgeDevice)
|
|
|
+ scan_bridge_slot(dt, bus, &bridge_info);
|
|
|
+ else
|
|
|
+ printk("PCI: Invalid Bridge Configuration(0x%02X)",
|
|
|
+ bridge_info.busUnitInfo.deviceType);
|
|
|
+ }
|
|
|
+}
|
|
|
+
|
|
|
+static void __init scan_phb(struct iseries_flat_dt *dt, HvBusNumber bus)
|
|
|
+{
|
|
|
+ struct HvCallPci_DeviceInfo dev_info;
|
|
|
+ const HvSubBusNumber sub_bus = 0; /* EADs is always 0. */
|
|
|
+ int err;
|
|
|
+ int id_sel;
|
|
|
+ const int max_agents = 8;
|
|
|
+
|
|
|
+ /*
|
|
|
+ * Probe for EADs Bridges
|
|
|
+ */
|
|
|
+ for (id_sel = 1; id_sel < max_agents; ++id_sel) {
|
|
|
+ err = HvCallPci_getDeviceInfo(bus, sub_bus, id_sel,
|
|
|
+ iseries_hv_addr(&dev_info),
|
|
|
+ sizeof(struct HvCallPci_DeviceInfo));
|
|
|
+ if (err) {
|
|
|
+ if (err != 0x302)
|
|
|
+ printk(KERN_DEBUG "getDeviceInfo(%x, %x, %x) "
|
|
|
+ "== %x\n",
|
|
|
+ bus, sub_bus, id_sel, err);
|
|
|
+ continue;
|
|
|
+ }
|
|
|
+ if (dev_info.deviceType != HvCallPci_NodeDevice) {
|
|
|
+ printk(KERN_DEBUG "PCI: Invalid System Configuration"
|
|
|
+ "(0x%02X) for bus 0x%02x id 0x%02x.\n",
|
|
|
+ dev_info.deviceType, bus, id_sel);
|
|
|
+ continue;
|
|
|
+ }
|
|
|
+ scan_bridge(dt, bus, sub_bus, id_sel);
|
|
|
+ }
|
|
|
+}
|
|
|
+
|
|
|
+static void __init dt_pci_devices(struct iseries_flat_dt *dt)
|
|
|
+{
|
|
|
+ HvBusNumber bus;
|
|
|
+ char buf[32];
|
|
|
+ u32 buses[2];
|
|
|
+ int phb_num = 0;
|
|
|
+
|
|
|
+ /* Check all possible buses. */
|
|
|
+ for (bus = 0; bus < 256; bus++) {
|
|
|
+ int err = HvCallXm_testBus(bus);
|
|
|
+
|
|
|
+ if (err) {
|
|
|
+ /*
|
|
|
+ * Check for Unexpected Return code, a clue that
|
|
|
+ * something has gone wrong.
|
|
|
+ */
|
|
|
+ if (err != 0x0301)
|
|
|
+ printk(KERN_ERR "Unexpected Return on Probe"
|
|
|
+ "(0x%02X): 0x%04X", bus, err);
|
|
|
+ continue;
|
|
|
+ }
|
|
|
+ printk("bus %d appears to exist\n", bus);
|
|
|
+ snprintf(buf, 32, "pci@%d", phb_num);
|
|
|
+ dt_start_node(dt, buf);
|
|
|
+ dt_prop_str(dt, "device_type", "pci");
|
|
|
+ dt_prop_str(dt, "compatible", "IBM,iSeries-Logical-PHB");
|
|
|
+ dt_prop_u32(dt, "#address-cells", 3);
|
|
|
+ dt_prop_u32(dt, "#size-cells", 2);
|
|
|
+ buses[0] = buses[1] = bus;
|
|
|
+ dt_prop_u32_list(dt, "bus-range", buses, 2);
|
|
|
+ scan_phb(dt, bus);
|
|
|
+ dt_end_node(dt);
|
|
|
+ phb_num++;
|
|
|
+ }
|
|
|
+}
|
|
|
+
|
|
|
+void * __init build_flat_dt(unsigned long phys_mem_size)
|
|
|
+{
|
|
|
+ u64 tmp[2];
|
|
|
+
|
|
|
+ dt_init(&iseries_dt);
|
|
|
+
|
|
|
+ dt_start_node(&iseries_dt, "");
|
|
|
+
|
|
|
+ dt_prop_u32(&iseries_dt, "#address-cells", 2);
|
|
|
+ dt_prop_u32(&iseries_dt, "#size-cells", 2);
|
|
|
+ dt_model(&iseries_dt);
|
|
|
+
|
|
|
+ /* /memory */
|
|
|
+ dt_start_node(&iseries_dt, "memory@0");
|
|
|
+ dt_prop_str(&iseries_dt, "name", "memory");
|
|
|
+ dt_prop_str(&iseries_dt, "device_type", "memory");
|
|
|
+ tmp[0] = 0;
|
|
|
+ tmp[1] = phys_mem_size;
|
|
|
+ dt_prop_u64_list(&iseries_dt, "reg", tmp, 2);
|
|
|
+ dt_end_node(&iseries_dt);
|
|
|
+
|
|
|
+ /* /chosen */
|
|
|
+ dt_start_node(&iseries_dt, "chosen");
|
|
|
+ dt_prop_str(&iseries_dt, "bootargs", cmd_line);
|
|
|
+ dt_end_node(&iseries_dt);
|
|
|
+
|
|
|
+ dt_cpus(&iseries_dt);
|
|
|
+
|
|
|
+ dt_vdevices(&iseries_dt);
|
|
|
+ dt_pci_devices(&iseries_dt);
|
|
|
+
|
|
|
+ dt_end_node(&iseries_dt);
|
|
|
+
|
|
|
+ dt_push_u32(&iseries_dt, OF_DT_END);
|
|
|
+
|
|
|
+ return &iseries_dt;
|
|
|
+}
|