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qemu-patch-raspberry4/hw/ppc/pegasos2.c
BALATON Zoltan 5f2eb04961 ppc/pegasos2: Implement some RTAS functions with VOF 
Linux uses RTAS functions to access PCI devices so we need to provide
these with VOF. Implement some of the most important functions to
allow booting Linux with VOF. With this the board is now usable
without a binary ROM image and we can enable it by default as other
boards.

Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
Message-Id: <20210708215113.B3F747456E3@zero.eik.bme.hu>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2021-07-09 10:40:43 +10:00

904 lines
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/*
* QEMU PowerPC CHRP (Genesi/bPlan Pegasos II) hardware System Emulator
*
* Copyright (c) 2018-2021 BALATON Zoltan
*
* This work is licensed under the GNU GPL license version 2 or later.
*
*/
#include "qemu/osdep.h"
#include "qemu-common.h"
#include "qemu/units.h"
#include "qapi/error.h"
#include "hw/hw.h"
#include "hw/ppc/ppc.h"
#include "hw/sysbus.h"
#include "hw/pci/pci_host.h"
#include "hw/irq.h"
#include "hw/pci-host/mv64361.h"
#include "hw/isa/vt82c686.h"
#include "hw/ide/pci.h"
#include "hw/i2c/smbus_eeprom.h"
#include "hw/qdev-properties.h"
#include "sysemu/reset.h"
#include "hw/boards.h"
#include "hw/loader.h"
#include "hw/fw-path-provider.h"
#include "elf.h"
#include "qemu/log.h"
#include "qemu/error-report.h"
#include "sysemu/kvm.h"
#include "kvm_ppc.h"
#include "exec/address-spaces.h"
#include "trace.h"
#include "qemu/datadir.h"
#include "sysemu/device_tree.h"
#include "hw/ppc/vof.h"
#include <libfdt.h>
#define PROM_FILENAME "vof.bin"
#define PROM_ADDR 0xfff00000
#define PROM_SIZE 0x80000
#define KVMPPC_HCALL_BASE 0xf000
#define KVMPPC_H_RTAS (KVMPPC_HCALL_BASE + 0x0)
#define KVMPPC_H_VOF_CLIENT (KVMPPC_HCALL_BASE + 0x5)
#define H_SUCCESS 0
#define H_PRIVILEGE -3 /* Caller not privileged */
#define H_PARAMETER -4 /* Parameter invalid, out-of-range or conflicting */
#define BUS_FREQ_HZ 133333333
#define PCI0_MEM_BASE 0xc0000000
#define PCI0_MEM_SIZE 0x20000000
#define PCI0_IO_BASE 0xf8000000
#define PCI0_IO_SIZE 0x10000
#define PCI1_MEM_BASE 0x80000000
#define PCI1_MEM_SIZE 0x40000000
#define PCI1_IO_BASE 0xfe000000
#define PCI1_IO_SIZE 0x10000
#define TYPE_PEGASOS2_MACHINE MACHINE_TYPE_NAME("pegasos2")
OBJECT_DECLARE_TYPE(Pegasos2MachineState, MachineClass, PEGASOS2_MACHINE)
struct Pegasos2MachineState {
MachineState parent_obj;
PowerPCCPU *cpu;
DeviceState *mv;
Vof *vof;
void *fdt_blob;
uint64_t kernel_addr;
uint64_t kernel_entry;
uint64_t kernel_size;
};
static void *build_fdt(MachineState *machine, int *fdt_size);
static void pegasos2_cpu_reset(void *opaque)
{
PowerPCCPU *cpu = opaque;
Pegasos2MachineState *pm = PEGASOS2_MACHINE(current_machine);
cpu_reset(CPU(cpu));
cpu->env.spr[SPR_HID1] = 7ULL << 28;
if (pm->vof) {
cpu->env.gpr[1] = 2 * VOF_STACK_SIZE - 0x20;
cpu->env.nip = 0x100;
}
}
static void pegasos2_init(MachineState *machine)
{
Pegasos2MachineState *pm = PEGASOS2_MACHINE(machine);
CPUPPCState *env;
MemoryRegion *rom = g_new(MemoryRegion, 1);
PCIBus *pci_bus;
PCIDevice *dev;
I2CBus *i2c_bus;
const char *fwname = machine->firmware ?: PROM_FILENAME;
char *filename;
int sz;
uint8_t *spd_data;
/* init CPU */
pm->cpu = POWERPC_CPU(cpu_create(machine->cpu_type));
env = &pm->cpu->env;
if (PPC_INPUT(env) != PPC_FLAGS_INPUT_6xx) {
error_report("Incompatible CPU, only 6xx bus supported");
exit(1);
}
/* Set time-base frequency */
cpu_ppc_tb_init(env, BUS_FREQ_HZ / 4);
qemu_register_reset(pegasos2_cpu_reset, pm->cpu);
/* RAM */
memory_region_add_subregion(get_system_memory(), 0, machine->ram);
/* allocate and load firmware */
filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, fwname);
if (!filename) {
error_report("Could not find firmware '%s'", fwname);
exit(1);
}
if (!machine->firmware && !pm->vof) {
pm->vof = g_malloc0(sizeof(*pm->vof));
}
memory_region_init_rom(rom, NULL, "pegasos2.rom", PROM_SIZE, &error_fatal);
memory_region_add_subregion(get_system_memory(), PROM_ADDR, rom);
sz = load_elf(filename, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 1,
PPC_ELF_MACHINE, 0, 0);
if (sz <= 0) {
sz = load_image_targphys(filename, pm->vof ? 0 : PROM_ADDR, PROM_SIZE);
}
if (sz <= 0 || sz > PROM_SIZE) {
error_report("Could not load firmware '%s'", filename);
exit(1);
}
g_free(filename);
if (pm->vof) {
pm->vof->fw_size = sz;
}
/* Marvell Discovery II system controller */
pm->mv = DEVICE(sysbus_create_simple(TYPE_MV64361, -1,
((qemu_irq *)env->irq_inputs)[PPC6xx_INPUT_INT]));
pci_bus = mv64361_get_pci_bus(pm->mv, 1);
/* VIA VT8231 South Bridge (multifunction PCI device) */
/* VT8231 function 0: PCI-to-ISA Bridge */
dev = pci_create_simple_multifunction(pci_bus, PCI_DEVFN(12, 0), true,
TYPE_VT8231_ISA);
qdev_connect_gpio_out(DEVICE(dev), 0,
qdev_get_gpio_in_named(pm->mv, "gpp", 31));
/* VT8231 function 1: IDE Controller */
dev = pci_create_simple(pci_bus, PCI_DEVFN(12, 1), "via-ide");
pci_ide_create_devs(dev);
/* VT8231 function 2-3: USB Ports */
pci_create_simple(pci_bus, PCI_DEVFN(12, 2), "vt82c686b-usb-uhci");
pci_create_simple(pci_bus, PCI_DEVFN(12, 3), "vt82c686b-usb-uhci");
/* VT8231 function 4: Power Management Controller */
dev = pci_create_simple(pci_bus, PCI_DEVFN(12, 4), TYPE_VT8231_PM);
i2c_bus = I2C_BUS(qdev_get_child_bus(DEVICE(dev), "i2c"));
spd_data = spd_data_generate(DDR, machine->ram_size);
smbus_eeprom_init_one(i2c_bus, 0x57, spd_data);
/* VT8231 function 5-6: AC97 Audio & Modem */
pci_create_simple(pci_bus, PCI_DEVFN(12, 5), TYPE_VIA_AC97);
pci_create_simple(pci_bus, PCI_DEVFN(12, 6), TYPE_VIA_MC97);
/* other PC hardware */
pci_vga_init(pci_bus);
if (machine->kernel_filename) {
sz = load_elf(machine->kernel_filename, NULL, NULL, NULL,
&pm->kernel_entry, &pm->kernel_addr, NULL, NULL, 1,
PPC_ELF_MACHINE, 0, 0);
if (sz <= 0) {
error_report("Could not load kernel '%s'",
machine->kernel_filename);
exit(1);
}
pm->kernel_size = sz;
if (!pm->vof) {
warn_report("Option -kernel may be ineffective with -bios.");
}
}
if (machine->kernel_cmdline && !pm->vof) {
warn_report("Option -append may be ineffective with -bios.");
}
}
static uint32_t pegasos2_pci_config_read(AddressSpace *as, int bus,
uint32_t addr, uint32_t len)
{
hwaddr pcicfg = (bus ? 0xf1000c78 : 0xf1000cf8);
uint32_t val = 0xffffffff;
stl_le_phys(as, pcicfg, addr | BIT(31));
switch (len) {
case 4:
val = ldl_le_phys(as, pcicfg + 4);
break;
case 2:
val = lduw_le_phys(as, pcicfg + 4);
break;
case 1:
val = ldub_phys(as, pcicfg + 4);
break;
default:
qemu_log_mask(LOG_GUEST_ERROR, "%s: invalid length\n", __func__);
break;
}
return val;
}
static void pegasos2_pci_config_write(AddressSpace *as, int bus, uint32_t addr,
uint32_t len, uint32_t val)
{
hwaddr pcicfg = (bus ? 0xf1000c78 : 0xf1000cf8);
stl_le_phys(as, pcicfg, addr | BIT(31));
switch (len) {
case 4:
stl_le_phys(as, pcicfg + 4, val);
break;
case 2:
stw_le_phys(as, pcicfg + 4, val);
break;
case 1:
stb_phys(as, pcicfg + 4, val);
break;
default:
qemu_log_mask(LOG_GUEST_ERROR, "%s: invalid length\n", __func__);
break;
}
}
static void pegasos2_machine_reset(MachineState *machine)
{
Pegasos2MachineState *pm = PEGASOS2_MACHINE(machine);
AddressSpace *as = CPU(pm->cpu)->as;
void *fdt;
uint64_t d[2];
int sz;
qemu_devices_reset();
if (!pm->vof) {
return; /* Firmware should set up machine so nothing to do */
}
/* Otherwise, set up devices that board firmware would normally do */
stl_le_phys(as, 0xf1000000, 0x28020ff);
stl_le_phys(as, 0xf1000278, 0xa31fc);
stl_le_phys(as, 0xf100f300, 0x11ff0400);
stl_le_phys(as, 0xf100f10c, 0x80000000);
stl_le_phys(as, 0xf100001c, 0x8000000);
pegasos2_pci_config_write(as, 0, PCI_COMMAND, 2, PCI_COMMAND_IO |
PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER);
pegasos2_pci_config_write(as, 1, PCI_COMMAND, 2, PCI_COMMAND_IO |
PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER);
pegasos2_pci_config_write(as, 1, (PCI_DEVFN(12, 0) << 8) |
PCI_INTERRUPT_LINE, 2, 0x9);
pegasos2_pci_config_write(as, 1, (PCI_DEVFN(12, 0) << 8) |
0x50, 1, 0x2);
pegasos2_pci_config_write(as, 1, (PCI_DEVFN(12, 1) << 8) |
PCI_INTERRUPT_LINE, 2, 0x109);
pegasos2_pci_config_write(as, 1, (PCI_DEVFN(12, 1) << 8) |
PCI_CLASS_PROG, 1, 0xf);
pegasos2_pci_config_write(as, 1, (PCI_DEVFN(12, 1) << 8) |
0x40, 1, 0xb);
pegasos2_pci_config_write(as, 1, (PCI_DEVFN(12, 1) << 8) |
0x50, 4, 0x17171717);
pegasos2_pci_config_write(as, 1, (PCI_DEVFN(12, 1) << 8) |
PCI_COMMAND, 2, 0x87);
pegasos2_pci_config_write(as, 1, (PCI_DEVFN(12, 2) << 8) |
PCI_INTERRUPT_LINE, 2, 0x409);
pegasos2_pci_config_write(as, 1, (PCI_DEVFN(12, 3) << 8) |
PCI_INTERRUPT_LINE, 2, 0x409);
pegasos2_pci_config_write(as, 1, (PCI_DEVFN(12, 4) << 8) |
PCI_INTERRUPT_LINE, 2, 0x9);
pegasos2_pci_config_write(as, 1, (PCI_DEVFN(12, 4) << 8) |
0x48, 4, 0xf00);
pegasos2_pci_config_write(as, 1, (PCI_DEVFN(12, 4) << 8) |
0x40, 4, 0x558020);
pegasos2_pci_config_write(as, 1, (PCI_DEVFN(12, 4) << 8) |
0x90, 4, 0xd00);
pegasos2_pci_config_write(as, 1, (PCI_DEVFN(12, 5) << 8) |
PCI_INTERRUPT_LINE, 2, 0x309);
pegasos2_pci_config_write(as, 1, (PCI_DEVFN(12, 6) << 8) |
PCI_INTERRUPT_LINE, 2, 0x309);
/* Device tree and VOF set up */
vof_init(pm->vof, machine->ram_size, &error_fatal);
if (vof_claim(pm->vof, 0, VOF_STACK_SIZE, VOF_STACK_SIZE) == -1) {
error_report("Memory allocation for stack failed");
exit(1);
}
if (pm->kernel_size &&
vof_claim(pm->vof, pm->kernel_addr, pm->kernel_size, 0) == -1) {
error_report("Memory for kernel is in use");
exit(1);
}
fdt = build_fdt(machine, &sz);
/* FIXME: VOF assumes entry is same as load address */
d[0] = cpu_to_be64(pm->kernel_entry);
d[1] = cpu_to_be64(pm->kernel_size - (pm->kernel_entry - pm->kernel_addr));
qemu_fdt_setprop(fdt, "/chosen", "qemu,boot-kernel", d, sizeof(d));
qemu_fdt_dumpdtb(fdt, fdt_totalsize(fdt));
g_free(pm->fdt_blob);
pm->fdt_blob = fdt;
vof_build_dt(fdt, pm->vof);
vof_client_open_store(fdt, pm->vof, "/chosen", "stdout", "/failsafe");
pm->cpu->vhyp = PPC_VIRTUAL_HYPERVISOR(machine);
}
enum pegasos2_rtas_tokens {
RTAS_RESTART_RTAS = 0,
RTAS_NVRAM_FETCH = 1,
RTAS_NVRAM_STORE = 2,
RTAS_GET_TIME_OF_DAY = 3,
RTAS_SET_TIME_OF_DAY = 4,
RTAS_EVENT_SCAN = 6,
RTAS_CHECK_EXCEPTION = 7,
RTAS_READ_PCI_CONFIG = 8,
RTAS_WRITE_PCI_CONFIG = 9,
RTAS_DISPLAY_CHARACTER = 10,
RTAS_SET_INDICATOR = 11,
RTAS_POWER_OFF = 17,
RTAS_SUSPEND = 18,
RTAS_HIBERNATE = 19,
RTAS_SYSTEM_REBOOT = 20,
};
static target_ulong pegasos2_rtas(PowerPCCPU *cpu, Pegasos2MachineState *pm,
target_ulong args_real)
{
AddressSpace *as = CPU(cpu)->as;
uint32_t token = ldl_be_phys(as, args_real);
uint32_t nargs = ldl_be_phys(as, args_real + 4);
uint32_t nrets = ldl_be_phys(as, args_real + 8);
uint32_t args = args_real + 12;
uint32_t rets = args_real + 12 + nargs * 4;
if (nrets < 1) {
qemu_log_mask(LOG_GUEST_ERROR, "Too few return values in RTAS call\n");
return H_PARAMETER;
}
switch (token) {
case RTAS_READ_PCI_CONFIG:
{
uint32_t addr, len, val;
if (nargs != 2 || nrets != 2) {
stl_be_phys(as, rets, -1);
return H_PARAMETER;
}
addr = ldl_be_phys(as, args);
len = ldl_be_phys(as, args + 4);
val = pegasos2_pci_config_read(as, !(addr >> 24),
addr & 0x0fffffff, len);
stl_be_phys(as, rets, 0);
stl_be_phys(as, rets + 4, val);
return H_SUCCESS;
}
case RTAS_WRITE_PCI_CONFIG:
{
uint32_t addr, len, val;
if (nargs != 3 || nrets != 1) {
stl_be_phys(as, rets, -1);
return H_PARAMETER;
}
addr = ldl_be_phys(as, args);
len = ldl_be_phys(as, args + 4);
val = ldl_be_phys(as, args + 8);
pegasos2_pci_config_write(as, !(addr >> 24),
addr & 0x0fffffff, len, val);
stl_be_phys(as, rets, 0);
return H_SUCCESS;
}
case RTAS_DISPLAY_CHARACTER:
if (nargs != 1 || nrets != 1) {
stl_be_phys(as, rets, -1);
return H_PARAMETER;
}
qemu_log_mask(LOG_UNIMP, "%c", ldl_be_phys(as, args));
stl_be_phys(as, rets, 0);
return H_SUCCESS;
default:
qemu_log_mask(LOG_UNIMP, "Unknown RTAS token %u (args=%u, rets=%u)\n",
token, nargs, nrets);
stl_be_phys(as, rets, 0);
return H_SUCCESS;
}
}
static void pegasos2_hypercall(PPCVirtualHypervisor *vhyp, PowerPCCPU *cpu)
{
Pegasos2MachineState *pm = PEGASOS2_MACHINE(vhyp);
CPUPPCState *env = &cpu->env;
/* The TCG path should also be holding the BQL at this point */
g_assert(qemu_mutex_iothread_locked());
if (msr_pr) {
qemu_log_mask(LOG_GUEST_ERROR, "Hypercall made with MSR[PR]=1\n");
env->gpr[3] = H_PRIVILEGE;
} else if (env->gpr[3] == KVMPPC_H_RTAS) {
env->gpr[3] = pegasos2_rtas(cpu, pm, env->gpr[4]);
} else if (env->gpr[3] == KVMPPC_H_VOF_CLIENT) {
int ret = vof_client_call(MACHINE(pm), pm->vof, pm->fdt_blob,
env->gpr[4]);
env->gpr[3] = (ret ? H_PARAMETER : H_SUCCESS);
} else {
qemu_log_mask(LOG_GUEST_ERROR, "Unsupported hypercall " TARGET_FMT_lx
"\n", env->gpr[3]);
env->gpr[3] = -1;
}
}
static void vhyp_nop(PPCVirtualHypervisor *vhyp, PowerPCCPU *cpu)
{
}
static target_ulong vhyp_encode_hpt_for_kvm_pr(PPCVirtualHypervisor *vhyp)
{
return POWERPC_CPU(current_cpu)->env.spr[SPR_SDR1];
}
static void pegasos2_machine_class_init(ObjectClass *oc, void *data)
{
MachineClass *mc = MACHINE_CLASS(oc);
PPCVirtualHypervisorClass *vhc = PPC_VIRTUAL_HYPERVISOR_CLASS(oc);
mc->desc = "Genesi/bPlan Pegasos II";
mc->init = pegasos2_init;
mc->reset = pegasos2_machine_reset;
mc->block_default_type = IF_IDE;
mc->default_boot_order = "cd";
mc->default_display = "std";
mc->default_cpu_type = POWERPC_CPU_TYPE_NAME("7400_v2.9");
mc->default_ram_id = "pegasos2.ram";
mc->default_ram_size = 512 * MiB;
vhc->hypercall = pegasos2_hypercall;
vhc->cpu_exec_enter = vhyp_nop;
vhc->cpu_exec_exit = vhyp_nop;
vhc->encode_hpt_for_kvm_pr = vhyp_encode_hpt_for_kvm_pr;
}
static const TypeInfo pegasos2_machine_info = {
.name = TYPE_PEGASOS2_MACHINE,
.parent = TYPE_MACHINE,
.class_init = pegasos2_machine_class_init,
.instance_size = sizeof(Pegasos2MachineState),
.interfaces = (InterfaceInfo[]) {
{ TYPE_PPC_VIRTUAL_HYPERVISOR },
{ }
},
};
static void pegasos2_machine_register_types(void)
{
type_register_static(&pegasos2_machine_info);
}
type_init(pegasos2_machine_register_types)
/* FDT creation for passing to firmware */
typedef struct {
void *fdt;
const char *path;
} FDTInfo;
/* We do everything in reverse order so it comes out right in the tree */
static void dt_ide(PCIBus *bus, PCIDevice *d, FDTInfo *fi)
{
qemu_fdt_setprop_string(fi->fdt, fi->path, "device_type", "spi");
}
static void dt_usb(PCIBus *bus, PCIDevice *d, FDTInfo *fi)
{
qemu_fdt_setprop_cell(fi->fdt, fi->path, "#size-cells", 0);
qemu_fdt_setprop_cell(fi->fdt, fi->path, "#address-cells", 1);
qemu_fdt_setprop_string(fi->fdt, fi->path, "device_type", "usb");
}
static void dt_isa(PCIBus *bus, PCIDevice *d, FDTInfo *fi)
{
GString *name = g_string_sized_new(64);
uint32_t cells[3];
qemu_fdt_setprop_cell(fi->fdt, fi->path, "#size-cells", 1);
qemu_fdt_setprop_cell(fi->fdt, fi->path, "#address-cells", 2);
qemu_fdt_setprop_string(fi->fdt, fi->path, "device_type", "isa");
qemu_fdt_setprop_string(fi->fdt, fi->path, "name", "isa");
/* addional devices */
g_string_printf(name, "%s/lpt@i3bc", fi->path);
qemu_fdt_add_subnode(fi->fdt, name->str);
qemu_fdt_setprop_cell(fi->fdt, name->str, "clock-frequency", 0);
cells[0] = cpu_to_be32(7);
cells[1] = 0;
qemu_fdt_setprop(fi->fdt, name->str, "interrupts",
cells, 2 * sizeof(cells[0]));
cells[0] = cpu_to_be32(1);
cells[1] = cpu_to_be32(0x3bc);
cells[2] = cpu_to_be32(8);
qemu_fdt_setprop(fi->fdt, name->str, "reg", cells, 3 * sizeof(cells[0]));
qemu_fdt_setprop_string(fi->fdt, name->str, "device_type", "lpt");
qemu_fdt_setprop_string(fi->fdt, name->str, "name", "lpt");
g_string_printf(name, "%s/fdc@i3f0", fi->path);
qemu_fdt_add_subnode(fi->fdt, name->str);
qemu_fdt_setprop_cell(fi->fdt, name->str, "clock-frequency", 0);
cells[0] = cpu_to_be32(6);
cells[1] = 0;
qemu_fdt_setprop(fi->fdt, name->str, "interrupts",
cells, 2 * sizeof(cells[0]));
cells[0] = cpu_to_be32(1);
cells[1] = cpu_to_be32(0x3f0);
cells[2] = cpu_to_be32(8);
qemu_fdt_setprop(fi->fdt, name->str, "reg", cells, 3 * sizeof(cells[0]));
qemu_fdt_setprop_string(fi->fdt, name->str, "device_type", "fdc");
qemu_fdt_setprop_string(fi->fdt, name->str, "name", "fdc");
g_string_printf(name, "%s/timer@i40", fi->path);
qemu_fdt_add_subnode(fi->fdt, name->str);
qemu_fdt_setprop_cell(fi->fdt, name->str, "clock-frequency", 0);
cells[0] = cpu_to_be32(1);
cells[1] = cpu_to_be32(0x40);
cells[2] = cpu_to_be32(8);
qemu_fdt_setprop(fi->fdt, name->str, "reg", cells, 3 * sizeof(cells[0]));
qemu_fdt_setprop_string(fi->fdt, name->str, "device_type", "timer");
qemu_fdt_setprop_string(fi->fdt, name->str, "name", "timer");
g_string_printf(name, "%s/rtc@i70", fi->path);
qemu_fdt_add_subnode(fi->fdt, name->str);
qemu_fdt_setprop_string(fi->fdt, name->str, "compatible", "ds1385-rtc");
qemu_fdt_setprop_cell(fi->fdt, name->str, "clock-frequency", 0);
cells[0] = cpu_to_be32(8);
cells[1] = 0;
qemu_fdt_setprop(fi->fdt, name->str, "interrupts",
cells, 2 * sizeof(cells[0]));
cells[0] = cpu_to_be32(1);
cells[1] = cpu_to_be32(0x70);
cells[2] = cpu_to_be32(2);
qemu_fdt_setprop(fi->fdt, name->str, "reg", cells, 3 * sizeof(cells[0]));
qemu_fdt_setprop_string(fi->fdt, name->str, "device_type", "rtc");
qemu_fdt_setprop_string(fi->fdt, name->str, "name", "rtc");
g_string_printf(name, "%s/keyboard@i60", fi->path);
qemu_fdt_add_subnode(fi->fdt, name->str);
cells[0] = cpu_to_be32(1);
cells[1] = 0;
qemu_fdt_setprop(fi->fdt, name->str, "interrupts",
cells, 2 * sizeof(cells[0]));
cells[0] = cpu_to_be32(1);
cells[1] = cpu_to_be32(0x60);
cells[2] = cpu_to_be32(5);
qemu_fdt_setprop(fi->fdt, name->str, "reg", cells, 3 * sizeof(cells[0]));
qemu_fdt_setprop_string(fi->fdt, name->str, "device_type", "keyboard");
qemu_fdt_setprop_string(fi->fdt, name->str, "name", "keyboard");
g_string_printf(name, "%s/8042@i60", fi->path);
qemu_fdt_add_subnode(fi->fdt, name->str);
qemu_fdt_setprop_cell(fi->fdt, name->str, "#interrupt-cells", 2);
qemu_fdt_setprop_cell(fi->fdt, name->str, "#size-cells", 0);
qemu_fdt_setprop_cell(fi->fdt, name->str, "#address-cells", 1);
qemu_fdt_setprop_string(fi->fdt, name->str, "interrupt-controller", "");
qemu_fdt_setprop_cell(fi->fdt, name->str, "clock-frequency", 0);
cells[0] = cpu_to_be32(1);
cells[1] = cpu_to_be32(0x60);
cells[2] = cpu_to_be32(5);
qemu_fdt_setprop(fi->fdt, name->str, "reg", cells, 3 * sizeof(cells[0]));
qemu_fdt_setprop_string(fi->fdt, name->str, "device_type", "");
qemu_fdt_setprop_string(fi->fdt, name->str, "name", "8042");
g_string_printf(name, "%s/serial@i2f8", fi->path);
qemu_fdt_add_subnode(fi->fdt, name->str);
qemu_fdt_setprop_cell(fi->fdt, name->str, "clock-frequency", 0);
cells[0] = cpu_to_be32(3);
cells[1] = 0;
qemu_fdt_setprop(fi->fdt, name->str, "interrupts",
cells, 2 * sizeof(cells[0]));
cells[0] = cpu_to_be32(1);
cells[1] = cpu_to_be32(0x2f8);
cells[2] = cpu_to_be32(8);
qemu_fdt_setprop(fi->fdt, name->str, "reg", cells, 3 * sizeof(cells[0]));
qemu_fdt_setprop_string(fi->fdt, name->str, "device_type", "serial");
qemu_fdt_setprop_string(fi->fdt, name->str, "name", "serial");
g_string_free(name, TRUE);
}
static struct {
const char *id;
const char *name;
void (*dtf)(PCIBus *bus, PCIDevice *d, FDTInfo *fi);
} device_map[] = {
{ "pci11ab,6460", "host", NULL },
{ "pci1106,8231", "isa", dt_isa },
{ "pci1106,571", "ide", dt_ide },
{ "pci1106,3044", "firewire", NULL },
{ "pci1106,3038", "usb", dt_usb },
{ "pci1106,8235", "other", NULL },
{ "pci1106,3058", "sound", NULL },
{ NULL, NULL }
};
static void add_pci_device(PCIBus *bus, PCIDevice *d, void *opaque)
{
FDTInfo *fi = opaque;
GString *node = g_string_new(NULL);
uint32_t cells[(PCI_NUM_REGIONS + 1) * 5];
int i, j;
const char *name = NULL;
g_autofree const gchar *pn = g_strdup_printf("pci%x,%x",
pci_get_word(&d->config[PCI_VENDOR_ID]),
pci_get_word(&d->config[PCI_DEVICE_ID]));
for (i = 0; device_map[i].id; i++) {
if (!strcmp(pn, device_map[i].id)) {
name = device_map[i].name;
break;
}
}
g_string_printf(node, "%s/%s@%x", fi->path, (name ?: pn),
PCI_SLOT(d->devfn));
if (PCI_FUNC(d->devfn)) {
g_string_append_printf(node, ",%x", PCI_FUNC(d->devfn));
}
qemu_fdt_add_subnode(fi->fdt, node->str);
if (device_map[i].dtf) {
FDTInfo cfi = { fi->fdt, node->str };
device_map[i].dtf(bus, d, &cfi);
}
cells[0] = cpu_to_be32(d->devfn << 8);
cells[1] = 0;
cells[2] = 0;
cells[3] = 0;
cells[4] = 0;
j = 5;
for (i = 0; i < PCI_NUM_REGIONS; i++) {
if (!d->io_regions[i].size) {
continue;
}
cells[j] = cpu_to_be32(d->devfn << 8 | (PCI_BASE_ADDRESS_0 + i * 4));
if (d->io_regions[i].type & PCI_BASE_ADDRESS_SPACE_IO) {
cells[j] |= cpu_to_be32(1 << 24);
} else {
cells[j] |= cpu_to_be32(2 << 24);
if (d->io_regions[i].type & PCI_BASE_ADDRESS_MEM_PREFETCH) {
cells[j] |= cpu_to_be32(4 << 28);
}
}
cells[j + 1] = 0;
cells[j + 2] = 0;
cells[j + 3] = cpu_to_be32(d->io_regions[i].size >> 32);
cells[j + 4] = cpu_to_be32(d->io_regions[i].size);
j += 5;
}
qemu_fdt_setprop(fi->fdt, node->str, "reg", cells, j * sizeof(cells[0]));
qemu_fdt_setprop_string(fi->fdt, node->str, "name", name ?: pn);
if (pci_get_byte(&d->config[PCI_INTERRUPT_PIN])) {
qemu_fdt_setprop_cell(fi->fdt, node->str, "interrupts",
pci_get_byte(&d->config[PCI_INTERRUPT_PIN]));
}
/* Pegasos2 firmware has subsystem-id amd subsystem-vendor-id swapped */
qemu_fdt_setprop_cell(fi->fdt, node->str, "subsystem-vendor-id",
pci_get_word(&d->config[PCI_SUBSYSTEM_ID]));
qemu_fdt_setprop_cell(fi->fdt, node->str, "subsystem-id",
pci_get_word(&d->config[PCI_SUBSYSTEM_VENDOR_ID]));
cells[0] = pci_get_long(&d->config[PCI_CLASS_REVISION]);
qemu_fdt_setprop_cell(fi->fdt, node->str, "class-code", cells[0] >> 8);
qemu_fdt_setprop_cell(fi->fdt, node->str, "revision-id", cells[0] & 0xff);
qemu_fdt_setprop_cell(fi->fdt, node->str, "device-id",
pci_get_word(&d->config[PCI_DEVICE_ID]));
qemu_fdt_setprop_cell(fi->fdt, node->str, "vendor-id",
pci_get_word(&d->config[PCI_VENDOR_ID]));
g_string_free(node, TRUE);
}
static void *build_fdt(MachineState *machine, int *fdt_size)
{
Pegasos2MachineState *pm = PEGASOS2_MACHINE(machine);
PowerPCCPU *cpu = pm->cpu;
PCIBus *pci_bus;
FDTInfo fi;
uint32_t cells[16];
void *fdt = create_device_tree(fdt_size);
fi.fdt = fdt;
/* root node */
qemu_fdt_setprop_string(fdt, "/", "CODEGEN,description",
"Pegasos CHRP PowerPC System");
qemu_fdt_setprop_string(fdt, "/", "CODEGEN,board", "Pegasos2");
qemu_fdt_setprop_string(fdt, "/", "CODEGEN,vendor", "bplan GmbH");
qemu_fdt_setprop_string(fdt, "/", "revision", "2B");
qemu_fdt_setprop_string(fdt, "/", "model", "Pegasos2");
qemu_fdt_setprop_string(fdt, "/", "device_type", "chrp");
qemu_fdt_setprop_cell(fdt, "/", "#address-cells", 1);
qemu_fdt_setprop_string(fdt, "/", "name", "bplan,Pegasos2");
/* pci@c0000000 */
qemu_fdt_add_subnode(fdt, "/pci@c0000000");
cells[0] = 0;
cells[1] = 0;
qemu_fdt_setprop(fdt, "/pci@c0000000", "bus-range",
cells, 2 * sizeof(cells[0]));
qemu_fdt_setprop_cell(fdt, "/pci@c0000000", "pci-bridge-number", 1);
cells[0] = cpu_to_be32(PCI0_MEM_BASE);
cells[1] = cpu_to_be32(PCI0_MEM_SIZE);
qemu_fdt_setprop(fdt, "/pci@c0000000", "reg", cells, 2 * sizeof(cells[0]));
cells[0] = cpu_to_be32(0x01000000);
cells[1] = 0;
cells[2] = 0;
cells[3] = cpu_to_be32(PCI0_IO_BASE);
cells[4] = 0;
cells[5] = cpu_to_be32(PCI0_IO_SIZE);
cells[6] = cpu_to_be32(0x02000000);
cells[7] = 0;
cells[8] = cpu_to_be32(PCI0_MEM_BASE);
cells[9] = cpu_to_be32(PCI0_MEM_BASE);
cells[10] = 0;
cells[11] = cpu_to_be32(PCI0_MEM_SIZE);
qemu_fdt_setprop(fdt, "/pci@c0000000", "ranges",
cells, 12 * sizeof(cells[0]));
qemu_fdt_setprop_cell(fdt, "/pci@c0000000", "#size-cells", 2);
qemu_fdt_setprop_cell(fdt, "/pci@c0000000", "#address-cells", 3);
qemu_fdt_setprop_string(fdt, "/pci@c0000000", "device_type", "pci");
qemu_fdt_setprop_string(fdt, "/pci@c0000000", "name", "pci");
fi.path = "/pci@c0000000";
pci_bus = mv64361_get_pci_bus(pm->mv, 0);
pci_for_each_device_reverse(pci_bus, 0, add_pci_device, &fi);
/* pci@80000000 */
qemu_fdt_add_subnode(fdt, "/pci@80000000");
cells[0] = 0;
cells[1] = 0;
qemu_fdt_setprop(fdt, "/pci@80000000", "bus-range",
cells, 2 * sizeof(cells[0]));
qemu_fdt_setprop_cell(fdt, "/pci@80000000", "pci-bridge-number", 0);
cells[0] = cpu_to_be32(PCI1_MEM_BASE);
cells[1] = cpu_to_be32(PCI1_MEM_SIZE);
qemu_fdt_setprop(fdt, "/pci@80000000", "reg", cells, 2 * sizeof(cells[0]));
qemu_fdt_setprop_cell(fdt, "/pci@80000000", "8259-interrupt-acknowledge",
0xf1000cb4);
cells[0] = cpu_to_be32(0x01000000);
cells[1] = 0;
cells[2] = 0;
cells[3] = cpu_to_be32(PCI1_IO_BASE);
cells[4] = 0;
cells[5] = cpu_to_be32(PCI1_IO_SIZE);
cells[6] = cpu_to_be32(0x02000000);
cells[7] = 0;
cells[8] = cpu_to_be32(PCI1_MEM_BASE);
cells[9] = cpu_to_be32(PCI1_MEM_BASE);
cells[10] = 0;
cells[11] = cpu_to_be32(PCI1_MEM_SIZE);
qemu_fdt_setprop(fdt, "/pci@80000000", "ranges",
cells, 12 * sizeof(cells[0]));
qemu_fdt_setprop_cell(fdt, "/pci@80000000", "#size-cells", 2);
qemu_fdt_setprop_cell(fdt, "/pci@80000000", "#address-cells", 3);
qemu_fdt_setprop_string(fdt, "/pci@80000000", "device_type", "pci");
qemu_fdt_setprop_string(fdt, "/pci@80000000", "name", "pci");
fi.path = "/pci@80000000";
pci_bus = mv64361_get_pci_bus(pm->mv, 1);
pci_for_each_device_reverse(pci_bus, 0, add_pci_device, &fi);
qemu_fdt_add_subnode(fdt, "/failsafe");
qemu_fdt_setprop_string(fdt, "/failsafe", "device_type", "serial");
qemu_fdt_setprop_string(fdt, "/failsafe", "name", "failsafe");
qemu_fdt_add_subnode(fdt, "/rtas");
qemu_fdt_setprop_cell(fdt, "/rtas", "system-reboot", RTAS_SYSTEM_REBOOT);
qemu_fdt_setprop_cell(fdt, "/rtas", "hibernate", RTAS_HIBERNATE);
qemu_fdt_setprop_cell(fdt, "/rtas", "suspend", RTAS_SUSPEND);
qemu_fdt_setprop_cell(fdt, "/rtas", "power-off", RTAS_POWER_OFF);
qemu_fdt_setprop_cell(fdt, "/rtas", "set-indicator", RTAS_SET_INDICATOR);
qemu_fdt_setprop_cell(fdt, "/rtas", "display-character",
RTAS_DISPLAY_CHARACTER);
qemu_fdt_setprop_cell(fdt, "/rtas", "write-pci-config",
RTAS_WRITE_PCI_CONFIG);
qemu_fdt_setprop_cell(fdt, "/rtas", "read-pci-config",
RTAS_READ_PCI_CONFIG);
/* Pegasos2 firmware misspells check-exception and guests use that */
qemu_fdt_setprop_cell(fdt, "/rtas", "check-execption",
RTAS_CHECK_EXCEPTION);
qemu_fdt_setprop_cell(fdt, "/rtas", "event-scan", RTAS_EVENT_SCAN);
qemu_fdt_setprop_cell(fdt, "/rtas", "set-time-of-day",
RTAS_SET_TIME_OF_DAY);
qemu_fdt_setprop_cell(fdt, "/rtas", "get-time-of-day",
RTAS_GET_TIME_OF_DAY);
qemu_fdt_setprop_cell(fdt, "/rtas", "nvram-store", RTAS_NVRAM_STORE);
qemu_fdt_setprop_cell(fdt, "/rtas", "nvram-fetch", RTAS_NVRAM_FETCH);
qemu_fdt_setprop_cell(fdt, "/rtas", "restart-rtas", RTAS_RESTART_RTAS);
qemu_fdt_setprop_cell(fdt, "/rtas", "rtas-error-log-max", 0);
qemu_fdt_setprop_cell(fdt, "/rtas", "rtas-event-scan-rate", 0);
qemu_fdt_setprop_cell(fdt, "/rtas", "rtas-display-device", 0);
qemu_fdt_setprop_cell(fdt, "/rtas", "rtas-size", 20);
qemu_fdt_setprop_cell(fdt, "/rtas", "rtas-version", 1);
/* cpus */
qemu_fdt_add_subnode(fdt, "/cpus");
qemu_fdt_setprop_cell(fdt, "/cpus", "#cpus", 1);
qemu_fdt_setprop_cell(fdt, "/cpus", "#address-cells", 1);
qemu_fdt_setprop_cell(fdt, "/cpus", "#size-cells", 0);
qemu_fdt_setprop_string(fdt, "/cpus", "name", "cpus");
/* FIXME Get CPU name from CPU object */
const char *cp = "/cpus/PowerPC,G4";
qemu_fdt_add_subnode(fdt, cp);
qemu_fdt_setprop_cell(fdt, cp, "l2cr", 0);
qemu_fdt_setprop_cell(fdt, cp, "d-cache-size", 0x8000);
qemu_fdt_setprop_cell(fdt, cp, "d-cache-block-size",
cpu->env.dcache_line_size);
qemu_fdt_setprop_cell(fdt, cp, "d-cache-line-size",
cpu->env.dcache_line_size);
qemu_fdt_setprop_cell(fdt, cp, "i-cache-size", 0x8000);
qemu_fdt_setprop_cell(fdt, cp, "i-cache-block-size",
cpu->env.icache_line_size);
qemu_fdt_setprop_cell(fdt, cp, "i-cache-line-size",
cpu->env.icache_line_size);
if (cpu->env.id_tlbs) {
qemu_fdt_setprop_cell(fdt, cp, "i-tlb-sets", cpu->env.nb_ways);
qemu_fdt_setprop_cell(fdt, cp, "i-tlb-size", cpu->env.tlb_per_way);
qemu_fdt_setprop_cell(fdt, cp, "d-tlb-sets", cpu->env.nb_ways);
qemu_fdt_setprop_cell(fdt, cp, "d-tlb-size", cpu->env.tlb_per_way);
qemu_fdt_setprop_string(fdt, cp, "tlb-split", "");
}
qemu_fdt_setprop_cell(fdt, cp, "tlb-sets", cpu->env.nb_ways);
qemu_fdt_setprop_cell(fdt, cp, "tlb-size", cpu->env.nb_tlb);
qemu_fdt_setprop_string(fdt, cp, "state", "running");
if (cpu->env.insns_flags & PPC_ALTIVEC) {
qemu_fdt_setprop_string(fdt, cp, "altivec", "");
qemu_fdt_setprop_string(fdt, cp, "data-streams", "");
}
/*
* FIXME What flags do data-streams, external-control and
* performance-monitor depend on?
*/
qemu_fdt_setprop_string(fdt, cp, "external-control", "");
if (cpu->env.insns_flags & PPC_FLOAT_FSQRT) {
qemu_fdt_setprop_string(fdt, cp, "general-purpose", "");
}
qemu_fdt_setprop_string(fdt, cp, "performance-monitor", "");
if (cpu->env.insns_flags & PPC_FLOAT_FRES) {
qemu_fdt_setprop_string(fdt, cp, "graphics", "");
}
qemu_fdt_setprop_cell(fdt, cp, "reservation-granule-size", 4);
qemu_fdt_setprop_cell(fdt, cp, "timebase-frequency",
cpu->env.tb_env->tb_freq);
qemu_fdt_setprop_cell(fdt, cp, "bus-frequency", BUS_FREQ_HZ);
qemu_fdt_setprop_cell(fdt, cp, "clock-frequency", BUS_FREQ_HZ * 7.5);
qemu_fdt_setprop_cell(fdt, cp, "cpu-version", cpu->env.spr[SPR_PVR]);
cells[0] = 0;
cells[1] = 0;
qemu_fdt_setprop(fdt, cp, "reg", cells, 2 * sizeof(cells[0]));
qemu_fdt_setprop_string(fdt, cp, "device_type", "cpu");
qemu_fdt_setprop_string(fdt, cp, "name", strrchr(cp, '/') + 1);
/* memory */
qemu_fdt_add_subnode(fdt, "/memory@0");
cells[0] = 0;
cells[1] = cpu_to_be32(machine->ram_size);
qemu_fdt_setprop(fdt, "/memory@0", "reg", cells, 2 * sizeof(cells[0]));
qemu_fdt_setprop_string(fdt, "/memory@0", "device_type", "memory");
qemu_fdt_setprop_string(fdt, "/memory@0", "name", "memory");
qemu_fdt_add_subnode(fdt, "/chosen");
qemu_fdt_setprop_string(fdt, "/chosen", "bootargs",
machine->kernel_cmdline ?: "");
qemu_fdt_setprop_string(fdt, "/chosen", "name", "chosen");
qemu_fdt_add_subnode(fdt, "/openprom");
qemu_fdt_setprop_string(fdt, "/openprom", "model", "Pegasos2,1.1");
return fdt;
}
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