[PATCH] powerpc: split device tree stuff out of iseries/setup.c
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
This commit is contained in:
Stephen Rothwell
Paul Mackerras
Родитель
9ceb19093b
Коммит
c81014f603
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@ -1,6 +1,6 @@
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EXTRA_CFLAGS += -mno-minimal-toc
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obj-y += hvlog.o hvlpconfig.o lpardata.o setup.o mf.o lpevents.o \
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obj-y += hvlog.o hvlpconfig.o lpardata.o setup.o dt.o mf.o lpevents.o \
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hvcall.o proc.o htab.o iommu.o misc.o irq.o
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obj-$(CONFIG_PCI) += pci.o vpdinfo.o
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obj-$(CONFIG_SMP) += smp.o
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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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#undef DEBUG
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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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#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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#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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#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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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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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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static struct iseries_flat_dt iseries_dt;
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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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/* 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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dt->dt.next = (unsigned long)&dt->dt.data;
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dt->strings.next = (unsigned long)&dt->strings.data;
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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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dt->reserve_map[0] = 0;
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dt->reserve_map[1] = 0;
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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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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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dt_check_blob(&dt->dt);
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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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dt_check_blob(&dt->dt);
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}
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#endif
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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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memcpy((char *)blob->next, data, len);
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blob->next = _ALIGN(blob->next + len, 4);
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dt_check_blob(blob);
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return start;
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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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#define dt_end_node(dt) dt_push_u32(dt, OF_DT_END_NODE)
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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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dt_push_u32(dt, OF_DT_PROP);
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/* Length of the data */
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dt_push_u32(dt, len);
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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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/* The offset of the properties name in the string blob. */
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dt_push_u32(dt, (u32)offset);
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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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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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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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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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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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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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#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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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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/* 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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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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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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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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snprintf(p, 32 - (p - buf), "@%d", i);
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dt_start_node(dt, buf);
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dt_prop_str(dt, "device_type", "cpu");
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index = lppaca[i].dyn_hv_phys_proc_index;
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d = &xIoHriProcessorVpd[index];
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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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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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/* 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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dt_prop_u32(dt, "reg", i);
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dt_prop_u32_list(dt, "ibm,pft-size", pft_size, 2);
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dt_end_node(dt);
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}
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dt_end_node(dt);
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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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/* "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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/* "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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dt_prop_str(dt, "compatible", "IBM,iSeries");
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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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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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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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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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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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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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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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dt_end_node(dt);
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}
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reg += HVMAXARCHITECTEDVIRTUALLANS;
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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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dt_end_node(dt);
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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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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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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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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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* 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];
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int id_sel = ISERIES_GET_DEVICE_FROM_SUBBUS(sub_bus);
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||||
int function = ISERIES_GET_FUNCTION_FROM_SUBBUS(sub_bus);
|
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HvAgentId eads_id_sel = ISERIES_PCI_AGENTID(id_sel, function);
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u8 devfn;
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struct pci_class_name *cp;
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|
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/*
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* Connect all functions of any device found.
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*/
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||||
for (id_sel = 1; id_sel <= bridge_info->maxAgents; id_sel++) {
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for (function = 0; function < 8; function++) {
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HvAgentId agent_id = ISERIES_PCI_AGENTID(id_sel,
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function);
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err = HvCallXm_connectBusUnit(bus, sub_bus,
|
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agent_id, 0);
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||||
if (err) {
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if (err != 0x302)
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printk(KERN_DEBUG
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||||
"connectBusUnit(%x, %x, %x) "
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"== %x\n",
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bus, sub_bus, agent_id, err);
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continue;
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}
|
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|
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err = HvCallPci_configLoad16(bus, sub_bus, agent_id,
|
||||
PCI_VENDOR_ID, &vendor_id);
|
||||
if (err) {
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||||
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;
|
||||
}
|
||||
|
|
@ -28,7 +28,6 @@
|
|||
#include <linux/major.h>
|
||||
#include <linux/root_dev.h>
|
||||
#include <linux/kernel.h>
|
||||
#include <linux/if_ether.h> /* ETH_ALEN */
|
||||
|
||||
#include <asm/processor.h>
|
||||
#include <asm/machdep.h>
|
||||
|
|
@ -46,13 +45,11 @@
|
|||
#include <asm/cache.h>
|
||||
#include <asm/sections.h>
|
||||
#include <asm/abs_addr.h>
|
||||
#include <asm/iseries/hv_types.h>
|
||||
#include <asm/iseries/hv_lp_config.h>
|
||||
#include <asm/iseries/hv_call_event.h>
|
||||
#include <asm/iseries/hv_call_xm.h>
|
||||
#include <asm/iseries/it_lp_queue.h>
|
||||
#include <asm/iseries/mf.h>
|
||||
#include <asm/iseries/it_exp_vpd_panel.h>
|
||||
#include <asm/iseries/hv_lp_event.h>
|
||||
#include <asm/iseries/lpar_map.h>
|
||||
#include <asm/udbg.h>
|
||||
|
|
@ -66,8 +63,6 @@
|
|||
#include "main_store.h"
|
||||
#include "call_sm.h"
|
||||
#include "call_hpt.h"
|
||||
#include "call_pci.h"
|
||||
#include "pci.h"
|
||||
|
||||
#ifdef DEBUG
|
||||
#define DBG(fmt...) udbg_printf(fmt)
|
||||
|
|
@ -711,575 +706,6 @@ define_machine(iseries) {
|
|||
/* XXX Implement enable_pmcs for iSeries */
|
||||
};
|
||||
|
||||
struct blob {
|
||||
unsigned char data[PAGE_SIZE * 2];
|
||||
unsigned long next;
|
||||
};
|
||||
|
||||
struct iseries_flat_dt {
|
||||
struct boot_param_header header;
|
||||
u64 reserve_map[2];
|
||||
struct blob dt;
|
||||
struct blob strings;
|
||||
};
|
||||
|
||||
static struct iseries_flat_dt iseries_dt;
|
||||
|
||||
static void __init dt_init(struct iseries_flat_dt *dt)
|
||||
{
|
||||
dt->header.off_mem_rsvmap =
|
||||
offsetof(struct iseries_flat_dt, reserve_map);
|
||||
dt->header.off_dt_struct = offsetof(struct iseries_flat_dt, dt);
|
||||
dt->header.off_dt_strings = offsetof(struct iseries_flat_dt, strings);
|
||||
dt->header.totalsize = sizeof(struct iseries_flat_dt);
|
||||
dt->header.dt_strings_size = sizeof(struct blob);
|
||||
|
||||
/* There is no notion of hardware cpu id on iSeries */
|
||||
dt->header.boot_cpuid_phys = smp_processor_id();
|
||||
|
||||
dt->dt.next = (unsigned long)&dt->dt.data;
|
||||
dt->strings.next = (unsigned long)&dt->strings.data;
|
||||
|
||||
dt->header.magic = OF_DT_HEADER;
|
||||
dt->header.version = 0x10;
|
||||
dt->header.last_comp_version = 0x10;
|
||||
|
||||
dt->reserve_map[0] = 0;
|
||||
dt->reserve_map[1] = 0;
|
||||
}
|
||||
|
||||
static void __init dt_check_blob(struct blob *b)
|
||||
{
|
||||
if (b->next >= (unsigned long)&b->next) {
|
||||
DBG("Ran out of space in flat device tree blob!\n");
|
||||
BUG();
|
||||
}
|
||||
}
|
||||
|
||||
static void __init dt_push_u32(struct iseries_flat_dt *dt, u32 value)
|
||||
{
|
||||
*((u32*)dt->dt.next) = value;
|
||||
dt->dt.next += sizeof(u32);
|
||||
|
||||
dt_check_blob(&dt->dt);
|
||||
}
|
||||
|
||||
#ifdef notyet
|
||||
static void __init dt_push_u64(struct iseries_flat_dt *dt, u64 value)
|
||||
{
|
||||
*((u64*)dt->dt.next) = value;
|
||||
dt->dt.next += sizeof(u64);
|
||||
|
||||
dt_check_blob(&dt->dt);
|
||||
}
|
||||
#endif
|
||||
|
||||
static unsigned long __init dt_push_bytes(struct blob *blob, char *data, int len)
|
||||
{
|
||||
unsigned long start = blob->next - (unsigned long)blob->data;
|
||||
|
||||
memcpy((char *)blob->next, data, len);
|
||||
blob->next = _ALIGN(blob->next + len, 4);
|
||||
|
||||
dt_check_blob(blob);
|
||||
|
||||
return start;
|
||||
}
|
||||
|
||||
static void __init dt_start_node(struct iseries_flat_dt *dt, char *name)
|
||||
{
|
||||
dt_push_u32(dt, OF_DT_BEGIN_NODE);
|
||||
dt_push_bytes(&dt->dt, name, strlen(name) + 1);
|
||||
}
|
||||
|
||||
#define dt_end_node(dt) dt_push_u32(dt, OF_DT_END_NODE)
|
||||
|
||||
static void __init dt_prop(struct iseries_flat_dt *dt, char *name,
|
||||
char *data, int len)
|
||||
{
|
||||
unsigned long offset;
|
||||
|
||||
dt_push_u32(dt, OF_DT_PROP);
|
||||
|
||||
/* Length of the data */
|
||||
dt_push_u32(dt, len);
|
||||
|
||||
/* Put the property name in the string blob. */
|
||||
offset = dt_push_bytes(&dt->strings, name, strlen(name) + 1);
|
||||
|
||||
/* The offset of the properties name in the string blob. */
|
||||
dt_push_u32(dt, (u32)offset);
|
||||
|
||||
/* The actual data. */
|
||||
dt_push_bytes(&dt->dt, data, len);
|
||||
}
|
||||
|
||||
static void __init dt_prop_str(struct iseries_flat_dt *dt, char *name,
|
||||
char *data)
|
||||
{
|
||||
dt_prop(dt, name, data, strlen(data) + 1); /* + 1 for NULL */
|
||||
}
|
||||
|
||||
static void __init dt_prop_u32(struct iseries_flat_dt *dt, char *name, u32 data)
|
||||
{
|
||||
dt_prop(dt, name, (char *)&data, sizeof(u32));
|
||||
}
|
||||
|
||||
static void __init dt_prop_u64(struct iseries_flat_dt *dt, char *name, u64 data)
|
||||
{
|
||||
dt_prop(dt, name, (char *)&data, sizeof(u64));
|
||||
}
|
||||
|
||||
static void __init dt_prop_u64_list(struct iseries_flat_dt *dt, char *name,
|
||||
u64 *data, int n)
|
||||
{
|
||||
dt_prop(dt, name, (char *)data, sizeof(u64) * n);
|
||||
}
|
||||
|
||||
static void __init dt_prop_u32_list(struct iseries_flat_dt *dt, char *name,
|
||||
u32 *data, int n)
|
||||
{
|
||||
dt_prop(dt, name, (char *)data, sizeof(u32) * n);
|
||||
}
|
||||
|
||||
#ifdef notyet
|
||||
static void __init dt_prop_empty(struct iseries_flat_dt *dt, char *name)
|
||||
{
|
||||
dt_prop(dt, name, NULL, 0);
|
||||
}
|
||||
#endif
|
||||
|
||||
static void __init dt_cpus(struct iseries_flat_dt *dt)
|
||||
{
|
||||
unsigned char buf[32];
|
||||
unsigned char *p;
|
||||
unsigned int i, index;
|
||||
struct IoHriProcessorVpd *d;
|
||||
u32 pft_size[2];
|
||||
|
||||
/* yuck */
|
||||
snprintf(buf, 32, "PowerPC,%s", cur_cpu_spec->cpu_name);
|
||||
p = strchr(buf, ' ');
|
||||
if (!p) p = buf + strlen(buf);
|
||||
|
||||
dt_start_node(dt, "cpus");
|
||||
dt_prop_u32(dt, "#address-cells", 1);
|
||||
dt_prop_u32(dt, "#size-cells", 0);
|
||||
|
||||
pft_size[0] = 0; /* NUMA CEC cookie, 0 for non NUMA */
|
||||
pft_size[1] = __ilog2(HvCallHpt_getHptPages() * HW_PAGE_SIZE);
|
||||
|
||||
for (i = 0; i < NR_CPUS; i++) {
|
||||
if (lppaca[i].dyn_proc_status >= 2)
|
||||
continue;
|
||||
|
||||
snprintf(p, 32 - (p - buf), "@%d", i);
|
||||
dt_start_node(dt, buf);
|
||||
|
||||
dt_prop_str(dt, "device_type", "cpu");
|
||||
|
||||
index = lppaca[i].dyn_hv_phys_proc_index;
|
||||
d = &xIoHriProcessorVpd[index];
|
||||
|
||||
dt_prop_u32(dt, "i-cache-size", d->xInstCacheSize * 1024);
|
||||
dt_prop_u32(dt, "i-cache-line-size", d->xInstCacheOperandSize);
|
||||
|
||||
dt_prop_u32(dt, "d-cache-size", d->xDataL1CacheSizeKB * 1024);
|
||||
dt_prop_u32(dt, "d-cache-line-size", d->xDataCacheOperandSize);
|
||||
|
||||
/* magic conversions to Hz copied from old code */
|
||||
dt_prop_u32(dt, "clock-frequency",
|
||||
((1UL << 34) * 1000000) / d->xProcFreq);
|
||||
dt_prop_u32(dt, "timebase-frequency",
|
||||
((1UL << 32) * 1000000) / d->xTimeBaseFreq);
|
||||
|
||||
dt_prop_u32(dt, "reg", i);
|
||||
|
||||
dt_prop_u32_list(dt, "ibm,pft-size", pft_size, 2);
|
||||
|
||||
dt_end_node(dt);
|
||||
}
|
||||
|
||||
dt_end_node(dt);
|
||||
}
|
||||
|
||||
static void __init dt_model(struct iseries_flat_dt *dt)
|
||||
{
|
||||
char buf[16] = "IBM,";
|
||||
|
||||
/* "IBM," + mfgId[2:3] + systemSerial[1:5] */
|
||||
strne2a(buf + 4, xItExtVpdPanel.mfgID + 2, 2);
|
||||
strne2a(buf + 6, xItExtVpdPanel.systemSerial + 1, 5);
|
||||
buf[11] = '\0';
|
||||
dt_prop_str(dt, "system-id", buf);
|
||||
|
||||
/* "IBM," + machineType[0:4] */
|
||||
strne2a(buf + 4, xItExtVpdPanel.machineType, 4);
|
||||
buf[8] = '\0';
|
||||
dt_prop_str(dt, "model", buf);
|
||||
|
||||
dt_prop_str(dt, "compatible", "IBM,iSeries");
|
||||
}
|
||||
|
||||
static void __init dt_vdevices(struct iseries_flat_dt *dt)
|
||||
{
|
||||
u32 reg = 0;
|
||||
HvLpIndexMap vlan_map;
|
||||
int i;
|
||||
char buf[32];
|
||||
|
||||
dt_start_node(dt, "vdevice");
|
||||
dt_prop_str(dt, "device_type", "vdevice");
|
||||
dt_prop_str(dt, "compatible", "IBM,iSeries-vdevice");
|
||||
dt_prop_u32(dt, "#address-cells", 1);
|
||||
dt_prop_u32(dt, "#size-cells", 0);
|
||||
|
||||
snprintf(buf, sizeof(buf), "vty@%08x", reg);
|
||||
dt_start_node(dt, buf);
|
||||
dt_prop_str(dt, "device_type", "serial");
|
||||
dt_prop_u32(dt, "reg", reg);
|
||||
dt_end_node(dt);
|
||||
reg++;
|
||||
|
||||
snprintf(buf, sizeof(buf), "v-scsi@%08x", reg);
|
||||
dt_start_node(dt, buf);
|
||||
dt_prop_str(dt, "device_type", "vscsi");
|
||||
dt_prop_str(dt, "compatible", "IBM,v-scsi");
|
||||
dt_prop_u32(dt, "reg", reg);
|
||||
dt_end_node(dt);
|
||||
reg++;
|
||||
|
||||
vlan_map = HvLpConfig_getVirtualLanIndexMap();
|
||||
for (i = 0; i < HVMAXARCHITECTEDVIRTUALLANS; i++) {
|
||||
unsigned char mac_addr[ETH_ALEN];
|
||||
|
||||
if ((vlan_map & (0x8000 >> i)) == 0)
|
||||
continue;
|
||||
snprintf(buf, 32, "l-lan@%08x", reg + i);
|
||||
dt_start_node(dt, buf);
|
||||
dt_prop_str(dt, "device_type", "network");
|
||||
dt_prop_str(dt, "compatible", "IBM,iSeries-l-lan");
|
||||
dt_prop_u32(dt, "reg", reg + i);
|
||||
dt_prop_u32(dt, "linux,unit_address", i);
|
||||
|
||||
mac_addr[0] = 0x02;
|
||||
mac_addr[1] = 0x01;
|
||||
mac_addr[2] = 0xff;
|
||||
mac_addr[3] = i;
|
||||
mac_addr[4] = 0xff;
|
||||
mac_addr[5] = HvLpConfig_getLpIndex_outline();
|
||||
dt_prop(dt, "local-mac-address", (char *)mac_addr, ETH_ALEN);
|
||||
dt_prop(dt, "mac-address", (char *)mac_addr, ETH_ALEN);
|
||||
dt_prop_u32(dt, "max-frame-size", 9000);
|
||||
dt_prop_u32(dt, "address-bits", 48);
|
||||
|
||||
dt_end_node(dt);
|
||||
}
|
||||
reg += HVMAXARCHITECTEDVIRTUALLANS;
|
||||
|
||||
for (i = 0; i < HVMAXARCHITECTEDVIRTUALDISKS; i++) {
|
||||
snprintf(buf, 32, "viodasd@%08x", reg + i);
|
||||
dt_start_node(dt, buf);
|
||||
dt_prop_str(dt, "device_type", "block");
|
||||
dt_prop_str(dt, "compatible", "IBM,iSeries-viodasd");
|
||||
dt_prop_u32(dt, "reg", reg + i);
|
||||
dt_prop_u32(dt, "linux,unit_address", i);
|
||||
dt_end_node(dt);
|
||||
}
|
||||
reg += HVMAXARCHITECTEDVIRTUALDISKS;
|
||||
for (i = 0; i < HVMAXARCHITECTEDVIRTUALCDROMS; i++) {
|
||||
snprintf(buf, 32, "viocd@%08x", reg + i);
|
||||
dt_start_node(dt, buf);
|
||||
dt_prop_str(dt, "device_type", "block");
|
||||
dt_prop_str(dt, "compatible", "IBM,iSeries-viocd");
|
||||
dt_prop_u32(dt, "reg", reg + i);
|
||||
dt_prop_u32(dt, "linux,unit_address", i);
|
||||
dt_end_node(dt);
|
||||
}
|
||||
reg += HVMAXARCHITECTEDVIRTUALCDROMS;
|
||||
for (i = 0; i < HVMAXARCHITECTEDVIRTUALTAPES; i++) {
|
||||
snprintf(buf, 32, "viotape@%08x", reg + i);
|
||||
dt_start_node(dt, buf);
|
||||
dt_prop_str(dt, "device_type", "byte");
|
||||
dt_prop_str(dt, "compatible", "IBM,iSeries-viotape");
|
||||
dt_prop_u32(dt, "reg", reg + i);
|
||||
dt_prop_u32(dt, "linux,unit_address", i);
|
||||
dt_end_node(dt);
|
||||
}
|
||||
|
||||
dt_end_node(dt);
|
||||
}
|
||||
|
||||
struct pci_class_name {
|
||||
u16 code;
|
||||
char *name;
|
||||
char *type;
|
||||
};
|
||||
|
||||
static struct pci_class_name __initdata pci_class_name[] = {
|
||||
{ PCI_CLASS_NETWORK_ETHERNET, "ethernet", "network" },
|
||||
};
|
||||
|
||||
static struct pci_class_name * __init dt_find_pci_class_name(u16 class_code)
|
||||
{
|
||||
struct pci_class_name *cp;
|
||||
|
||||
for (cp = pci_class_name;
|
||||
cp < &pci_class_name[ARRAY_SIZE(pci_class_name)]; cp++)
|
||||
if (cp->code == class_code)
|
||||
return cp;
|
||||
return NULL;
|
||||
}
|
||||
|
||||
/*
|
||||
* This assumes that the node slot is always on the primary bus!
|
||||
*/
|
||||
static void __init scan_bridge_slot(struct iseries_flat_dt *dt,
|
||||
HvBusNumber bus, struct HvCallPci_BridgeInfo *bridge_info)
|
||||
{
|
||||
HvSubBusNumber sub_bus = bridge_info->subBusNumber;
|
||||
u16 vendor_id;
|
||||
u16 device_id;
|
||||
u32 class_id;
|
||||
int err;
|
||||
char buf[32];
|
||||
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++;
|
||||
}
|
||||
}
|
||||
|
||||
static void __init build_flat_dt(struct iseries_flat_dt *dt,
|
||||
unsigned long phys_mem_size)
|
||||
{
|
||||
u64 tmp[2];
|
||||
|
||||
dt_init(dt);
|
||||
|
||||
dt_start_node(dt, "");
|
||||
|
||||
dt_prop_u32(dt, "#address-cells", 2);
|
||||
dt_prop_u32(dt, "#size-cells", 2);
|
||||
dt_model(dt);
|
||||
|
||||
/* /memory */
|
||||
dt_start_node(dt, "memory@0");
|
||||
dt_prop_str(dt, "name", "memory");
|
||||
dt_prop_str(dt, "device_type", "memory");
|
||||
tmp[0] = 0;
|
||||
tmp[1] = phys_mem_size;
|
||||
dt_prop_u64_list(dt, "reg", tmp, 2);
|
||||
dt_end_node(dt);
|
||||
|
||||
/* /chosen */
|
||||
dt_start_node(dt, "chosen");
|
||||
dt_prop_str(dt, "bootargs", cmd_line);
|
||||
dt_end_node(dt);
|
||||
|
||||
dt_cpus(dt);
|
||||
|
||||
dt_vdevices(dt);
|
||||
dt_pci_devices(dt);
|
||||
|
||||
dt_end_node(dt);
|
||||
|
||||
dt_push_u32(dt, OF_DT_END);
|
||||
}
|
||||
|
||||
void * __init iSeries_early_setup(void)
|
||||
{
|
||||
unsigned long phys_mem_size;
|
||||
|
|
@ -1294,9 +720,7 @@ void * __init iSeries_early_setup(void)
|
|||
|
||||
iSeries_get_cmdline();
|
||||
|
||||
build_flat_dt(&iseries_dt, phys_mem_size);
|
||||
|
||||
return (void *) __pa(&iseries_dt);
|
||||
return (void *) __pa(build_flat_dt(phys_mem_size));
|
||||
}
|
||||
|
||||
static void hvputc(char c)
|
||||
|
|
|
|||
|
|
@ -21,4 +21,6 @@ extern unsigned long iSeries_get_boot_time(void);
|
|||
extern int iSeries_set_rtc_time(struct rtc_time *tm);
|
||||
extern void iSeries_get_rtc_time(struct rtc_time *tm);
|
||||
|
||||
extern void *build_flat_dt(unsigned long phys_mem_size);
|
||||
|
||||
#endif /* __ISERIES_SETUP_H__ */
|
||||
|
|
|
|||
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