Commit 228d5505 authored by Tony Breeds's avatar Tony Breeds Committed by Josh Boyer

powerpc/47x: Add support for the new IBM currituck platform

Based on original work by David 'Shaggy' Kleikamp.
Signed-off-by: default avatarTony Breeds <tony@bakeyournoodle.com>
Signed-off-by: default avatarJosh Boyer <jwboyer@gmail.com>
parent df777bd3
......@@ -45,6 +45,7 @@ $(obj)/cuboot-katmai.o: BOOTCFLAGS += -mcpu=405
$(obj)/cuboot-acadia.o: BOOTCFLAGS += -mcpu=405
$(obj)/treeboot-walnut.o: BOOTCFLAGS += -mcpu=405
$(obj)/treeboot-iss4xx.o: BOOTCFLAGS += -mcpu=405
$(obj)/treeboot-currituck.o: BOOTCFLAGS += -mcpu=405
$(obj)/virtex405-head.o: BOOTAFLAGS += -mcpu=405
......@@ -79,7 +80,8 @@ src-plat := of.c cuboot-52xx.c cuboot-824x.c cuboot-83xx.c cuboot-85xx.c holly.c
cuboot-warp.c cuboot-85xx-cpm2.c cuboot-yosemite.c simpleboot.c \
virtex405-head.S virtex.c redboot-83xx.c cuboot-sam440ep.c \
cuboot-acadia.c cuboot-amigaone.c cuboot-kilauea.c \
gamecube-head.S gamecube.c wii-head.S wii.c treeboot-iss4xx.c
gamecube-head.S gamecube.c wii-head.S wii.c treeboot-iss4xx.c \
treeboot-currituck.c
src-boot := $(src-wlib) $(src-plat) empty.c
src-boot := $(addprefix $(obj)/, $(src-boot))
......@@ -212,6 +214,7 @@ image-$(CONFIG_WARP) += cuImage.warp
image-$(CONFIG_YOSEMITE) += cuImage.yosemite
image-$(CONFIG_ISS4xx) += treeImage.iss4xx \
treeImage.iss4xx-mpic
image-$(CONFIG_CURRITUCK) += treeImage.currituck
# Board ports in arch/powerpc/platform/8xx/Kconfig
image-$(CONFIG_MPC86XADS) += cuImage.mpc866ads
......
/*
* Device Tree Source for IBM Embedded PPC 476 Platform
*
* Copyright © 2011 Tony Breeds IBM Corporation
*
* This file is licensed under the terms of the GNU General Public
* License version 2. This program is licensed "as is" without
* any warranty of any kind, whether express or implied.
*/
/dts-v1/;
/memreserve/ 0x01f00000 0x00100000; // spin table
/ {
#address-cells = <2>;
#size-cells = <2>;
model = "ibm,currituck";
compatible = "ibm,currituck";
dcr-parent = <&{/cpus/cpu@0}>;
aliases {
serial0 = &UART0;
};
cpus {
#address-cells = <1>;
#size-cells = <0>;
cpu@0 {
device_type = "cpu";
model = "PowerPC,476";
reg = <0>;
clock-frequency = <1600000000>; // 1.6 GHz
timebase-frequency = <100000000>; // 100Mhz
i-cache-line-size = <32>;
d-cache-line-size = <32>;
i-cache-size = <32768>;
d-cache-size = <32768>;
dcr-controller;
dcr-access-method = "native";
status = "ok";
};
cpu@1 {
device_type = "cpu";
model = "PowerPC,476";
reg = <1>;
clock-frequency = <1600000000>; // 1.6 GHz
timebase-frequency = <100000000>; // 100Mhz
i-cache-line-size = <32>;
d-cache-line-size = <32>;
i-cache-size = <32768>;
d-cache-size = <32768>;
dcr-controller;
dcr-access-method = "native";
status = "disabled";
enable-method = "spin-table";
cpu-release-addr = <0x0 0x01f00000>;
};
};
memory {
device_type = "memory";
reg = <0x0 0x0 0x0 0x0>; // filled in by zImage
};
MPIC: interrupt-controller {
compatible = "chrp,open-pic";
interrupt-controller;
dcr-reg = <0xffc00000 0x00040000>;
#address-cells = <0>;
#size-cells = <0>;
#interrupt-cells = <2>;
};
plb {
compatible = "ibm,plb6";
#address-cells = <2>;
#size-cells = <2>;
ranges;
clock-frequency = <200000000>; // 200Mhz
POB0: opb {
compatible = "ibm,opb-4xx", "ibm,opb";
#address-cells = <1>;
#size-cells = <1>;
/* Wish there was a nicer way of specifying a full
* 32-bit range
*/
ranges = <0x00000000 0x00000200 0x00000000 0x80000000
0x80000000 0x00000200 0x80000000 0x80000000>;
clock-frequency = <100000000>;
UART0: serial@10000000 {
device_type = "serial";
compatible = "ns16750", "ns16550";
reg = <0x10000000 0x00000008>;
virtual-reg = <0xe1000000>;
clock-frequency = <1851851>; // PCIe refclk/MCGC0_CTL[UART]
current-speed = <115200>;
interrupt-parent = <&MPIC>;
interrupts = <34 2>;
};
IIC0: i2c@00000000 {
compatible = "ibm,iic-currituck", "ibm,iic";
reg = <0x0 0x00000014>;
interrupt-parent = <&MPIC>;
interrupts = <79 2>;
#address-cells = <1>;
#size-cells = <0>;
rtc@68 {
compatible = "stm,m41t80", "m41st85";
reg = <0x68>;
};
};
};
PCIE0: pciex@10100000000 { // 4xGBIF1
device_type = "pci";
#interrupt-cells = <1>;
#size-cells = <2>;
#address-cells = <3>;
compatible = "ibm,plb-pciex-476fpe", "ibm,plb-pciex";
primary;
port = <0x0>; /* port number */
reg = <0x00000101 0x00000000 0x0 0x10000000 /* Config space access */
0x00000100 0x00000000 0x0 0x00001000>; /* UTL Registers space access */
dcr-reg = <0x80 0x20>;
// pci_space < pci_addr > < cpu_addr > < size >
ranges = <0x02000000 0x00000000 0x80000000 0x00000110 0x80000000 0x0 0x80000000
0x01000000 0x0 0x0 0x00000140 0x0 0x0 0x00010000>;
/* Inbound starting at 0 to memsize filled in by zImage */
dma-ranges = <0x42000000 0x0 0x0 0x0 0x0 0x0 0x0>;
/* This drives busses 0 to 0xf */
bus-range = <0x0 0xf>;
/* Legacy interrupts (note the weird polarity, the bridge seems
* to invert PCIe legacy interrupts).
* We are de-swizzling here because the numbers are actually for
* port of the root complex virtual P2P bridge. But I want
* to avoid putting a node for it in the tree, so the numbers
* below are basically de-swizzled numbers.
* The real slot is on idsel 0, so the swizzling is 1:1
*/
interrupt-map-mask = <0x0 0x0 0x0 0x7>;
interrupt-map = <
0x0 0x0 0x0 0x1 &MPIC 46 0x2 /* int A */
0x0 0x0 0x0 0x2 &MPIC 47 0x2 /* int B */
0x0 0x0 0x0 0x3 &MPIC 48 0x2 /* int C */
0x0 0x0 0x0 0x4 &MPIC 49 0x2 /* int D */>;
};
PCIE1: pciex@30100000000 { // 4xGBIF0
device_type = "pci";
#interrupt-cells = <1>;
#size-cells = <2>;
#address-cells = <3>;
compatible = "ibm,plb-pciex-476fpe", "ibm,plb-pciex";
primary;
port = <0x1>; /* port number */
reg = <0x00000301 0x00000000 0x0 0x10000000 /* Config space access */
0x00000300 0x00000000 0x0 0x00001000>; /* UTL Registers space access */
dcr-reg = <0x60 0x20>;
ranges = <0x02000000 0x00000000 0x80000000 0x00000310 0x80000000 0x0 0x80000000
0x01000000 0x0 0x0 0x00000340 0x0 0x0 0x00010000>;
/* Inbound starting at 0 to memsize filled in by zImage */
dma-ranges = <0x42000000 0x0 0x0 0x0 0x0 0x0 0x0>;
/* This drives busses 0 to 0xf */
bus-range = <0x0 0xf>;
/* Legacy interrupts (note the weird polarity, the bridge seems
* to invert PCIe legacy interrupts).
* We are de-swizzling here because the numbers are actually for
* port of the root complex virtual P2P bridge. But I want
* to avoid putting a node for it in the tree, so the numbers
* below are basically de-swizzled numbers.
* The real slot is on idsel 0, so the swizzling is 1:1
*/
interrupt-map-mask = <0x0 0x0 0x0 0x7>;
interrupt-map = <
0x0 0x0 0x0 0x1 &MPIC 38 0x2 /* int A */
0x0 0x0 0x0 0x2 &MPIC 39 0x2 /* int B */
0x0 0x0 0x0 0x3 &MPIC 40 0x2 /* int C */
0x0 0x0 0x0 0x4 &MPIC 41 0x2 /* int D */>;
};
PCIE2: pciex@38100000000 { // 2xGBIF0
device_type = "pci";
#interrupt-cells = <1>;
#size-cells = <2>;
#address-cells = <3>;
compatible = "ibm,plb-pciex-476fpe", "ibm,plb-pciex";
primary;
port = <0x2>; /* port number */
reg = <0x00000381 0x00000000 0x0 0x10000000 /* Config space access */
0x00000380 0x00000000 0x0 0x00001000>; /* UTL Registers space access */
dcr-reg = <0xA0 0x20>;
ranges = <0x02000000 0x00000000 0x80000000 0x00000390 0x80000000 0x0 0x80000000
0x01000000 0x0 0x0 0x000003C0 0x0 0x0 0x00010000>;
/* Inbound starting at 0 to memsize filled in by zImage */
dma-ranges = <0x42000000 0x0 0x0 0x0 0x0 0x0 0x0>;
/* This drives busses 0 to 0xf */
bus-range = <0x0 0xf>;
/* Legacy interrupts (note the weird polarity, the bridge seems
* to invert PCIe legacy interrupts).
* We are de-swizzling here because the numbers are actually for
* port of the root complex virtual P2P bridge. But I want
* to avoid putting a node for it in the tree, so the numbers
* below are basically de-swizzled numbers.
* The real slot is on idsel 0, so the swizzling is 1:1
*/
interrupt-map-mask = <0x0 0x0 0x0 0x7>;
interrupt-map = <
0x0 0x0 0x0 0x1 &MPIC 54 0x2 /* int A */
0x0 0x0 0x0 0x2 &MPIC 55 0x2 /* int B */
0x0 0x0 0x0 0x3 &MPIC 56 0x2 /* int C */
0x0 0x0 0x0 0x4 &MPIC 57 0x2 /* int D */>;
};
};
chosen {
linux,stdout-path = &UART0;
};
};
/*
* Copyright © 2011 Tony Breeds IBM Corporation
*
* Based on earlier code:
* Copyright (C) Paul Mackerras 1997.
*
* Matt Porter <mporter@kernel.crashing.org>
* Copyright 2002-2005 MontaVista Software Inc.
*
* Eugene Surovegin <eugene.surovegin@zultys.com> or <ebs@ebshome.net>
* Copyright (c) 2003, 2004 Zultys Technologies
*
* Copyright 2007 David Gibson, IBM Corporation.
* Copyright 2010 Ben. Herrenschmidt, IBM Corporation.
* Copyright © 2011 David Kleikamp IBM Corporation
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version
* 2 of the License, or (at your option) any later version.
*/
#include <stdarg.h>
#include <stddef.h>
#include "types.h"
#include "elf.h"
#include "string.h"
#include "stdio.h"
#include "page.h"
#include "ops.h"
#include "reg.h"
#include "io.h"
#include "dcr.h"
#include "4xx.h"
#include "44x.h"
#include "libfdt.h"
BSS_STACK(4096);
#define MAX_RANKS 0x4
#define DDR3_MR0CF 0x80010011U
static unsigned long long ibm_currituck_memsize;
static unsigned long long ibm_currituck_detect_memsize(void)
{
u32 reg;
unsigned i;
unsigned long long memsize = 0;
for(i = 0; i < MAX_RANKS; i++){
reg = mfdcrx(DDR3_MR0CF + i);
if (!(reg & 1))
continue;
reg &= 0x0000f000;
reg >>= 12;
memsize += (0x800000ULL << reg);
}
return memsize;
}
static void ibm_currituck_fixups(void)
{
void *devp = finddevice("/");
u32 dma_ranges[7];
dt_fixup_memory(0x0ULL, ibm_currituck_memsize);
while ((devp = find_node_by_devtype(devp, "pci"))) {
if (getprop(devp, "dma-ranges", dma_ranges, sizeof(dma_ranges)) < 0) {
printf("%s: Failed to get dma-ranges\r\n", __func__);
continue;
}
dma_ranges[5] = ibm_currituck_memsize >> 32;
dma_ranges[6] = ibm_currituck_memsize & 0xffffffffUL;
setprop(devp, "dma-ranges", dma_ranges, sizeof(dma_ranges));
}
}
#define SPRN_PIR 0x11E /* Processor Indentification Register */
void platform_init(void)
{
unsigned long end_of_ram, avail_ram;
u32 pir_reg;
int node, size;
const u32 *timebase;
ibm_currituck_memsize = ibm_currituck_detect_memsize();
if (ibm_currituck_memsize >> 32)
end_of_ram = ~0UL;
else
end_of_ram = ibm_currituck_memsize;
avail_ram = end_of_ram - (unsigned long)_end;
simple_alloc_init(_end, avail_ram, 128, 64);
platform_ops.fixups = ibm_currituck_fixups;
platform_ops.exit = ibm44x_dbcr_reset;
pir_reg = mfspr(SPRN_PIR);
/* Make sure FDT blob is sane */
if (fdt_check_header(_dtb_start) != 0)
fatal("Invalid device tree blob\n");
node = fdt_node_offset_by_prop_value(_dtb_start, -1, "device_type",
"cpu", sizeof("cpu"));
if (!node)
fatal("Cannot find cpu node\n");
timebase = fdt_getprop(_dtb_start, node, "timebase-frequency", &size);
if (timebase && (size == 4))
timebase_period_ns = 1000000000 / *timebase;
fdt_set_boot_cpuid_phys(_dtb_start, pir_reg);
fdt_init(_dtb_start);
serial_console_init();
}
......@@ -244,6 +244,9 @@ gamecube|wii)
link_address='0x600000'
platformo="$object/$platform-head.o $object/$platform.o"
;;
treeboot-currituck)
link_address='0x1000000'
;;
treeboot-iss4xx-mpic)
platformo="$object/treeboot-iss4xx.o"
;;
......
CONFIG_44x=y
CONFIG_SMP=y
CONFIG_EXPERIMENTAL=y
CONFIG_SYSVIPC=y
CONFIG_POSIX_MQUEUE=y
CONFIG_SPARSE_IRQ=y
CONFIG_LOG_BUF_SHIFT=14
CONFIG_EXPERT=y
CONFIG_KALLSYMS_ALL=y
CONFIG_PROFILING=y
CONFIG_OPROFILE=y
CONFIG_MODULES=y
CONFIG_MODULE_UNLOAD=y
# CONFIG_BLK_DEV_BSG is not set
CONFIG_PPC_47x=y
# CONFIG_EBONY is not set
CONFIG_CURRITUCK=y
CONFIG_HIGHMEM=y
CONFIG_HZ_100=y
CONFIG_MATH_EMULATION=y
CONFIG_IRQ_ALL_CPUS=y
CONFIG_CMDLINE_BOOL=y
CONFIG_CMDLINE=""
# CONFIG_SUSPEND is not set
CONFIG_NET=y
CONFIG_PACKET=y
CONFIG_UNIX=y
CONFIG_INET=y
CONFIG_IP_PNP=y
CONFIG_IP_PNP_DHCP=y
CONFIG_IP_PNP_BOOTP=y
# CONFIG_INET_XFRM_MODE_TRANSPORT is not set
# CONFIG_INET_XFRM_MODE_TUNNEL is not set
# CONFIG_INET_XFRM_MODE_BEET is not set
# CONFIG_INET_LRO is not set
# CONFIG_IPV6 is not set
CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
CONFIG_DEVTMPFS=y
CONFIG_DEVTMPFS_MOUNT=y
CONFIG_CONNECTOR=y
CONFIG_MTD=y
CONFIG_MTD_CHAR=y
CONFIG_MTD_BLOCK=y
CONFIG_MTD_JEDECPROBE=y
CONFIG_MTD_CFI_AMDSTD=y
CONFIG_MTD_PHYSMAP_OF=y
CONFIG_PROC_DEVICETREE=y
CONFIG_BLK_DEV_RAM=y
CONFIG_BLK_DEV_RAM_SIZE=35000
# CONFIG_SCSI_PROC_FS is not set
CONFIG_BLK_DEV_SD=y
# CONFIG_SCSI_LOWLEVEL is not set
CONFIG_ATA=y
# CONFIG_SATA_PMP is not set
CONFIG_SATA_SIL24=y
# CONFIG_ATA_SFF is not set
CONFIG_NETDEVICES=y
CONFIG_E1000E=y
# CONFIG_NETDEV_10000 is not set
# CONFIG_INPUT is not set
# CONFIG_SERIO is not set
# CONFIG_VT is not set
CONFIG_SERIAL_8250=y
CONFIG_SERIAL_8250_CONSOLE=y
CONFIG_SERIAL_8250_EXTENDED=y
CONFIG_SERIAL_8250_SHARE_IRQ=y
CONFIG_SERIAL_OF_PLATFORM=y
# CONFIG_HW_RANDOM is not set
CONFIG_I2C=y
CONFIG_I2C_IBM_IIC=y
# CONFIG_HWMON is not set
CONFIG_THERMAL=y
CONFIG_USB=y
CONFIG_USB_DEBUG=y
CONFIG_USB_EHCI_HCD=y
CONFIG_USB_OHCI_HCD=y
CONFIG_RTC_CLASS=y
CONFIG_RTC_DRV_M41T80=y
CONFIG_EXT2_FS=y
CONFIG_EXT3_FS=y
# CONFIG_EXT3_DEFAULTS_TO_ORDERED is not set
CONFIG_EXT3_FS_POSIX_ACL=y
CONFIG_EXT3_FS_SECURITY=y
CONFIG_PROC_KCORE=y
CONFIG_TMPFS=y
CONFIG_CRAMFS=y
CONFIG_NFS_FS=y
CONFIG_NFS_V3=y
CONFIG_NFS_V3_ACL=y
CONFIG_NFS_V4=y
CONFIG_NLS_DEFAULT="n"
CONFIG_MAGIC_SYSRQ=y
CONFIG_DEBUG_FS=y
CONFIG_DEBUG_KERNEL=y
CONFIG_DETECT_HUNG_TASK=y
CONFIG_DEBUG_INFO=y
CONFIG_SYSCTL_SYSCALL_CHECK=y
CONFIG_XMON=y
CONFIG_XMON_DEFAULT=y
CONFIG_PPC_EARLY_DEBUG=y
CONFIG_PPC_EARLY_DEBUG_44x_PHYSLOW=0x10000000
CONFIG_PPC_EARLY_DEBUG_44x_PHYSHIGH=0x200
CONFIG_CRYPTO=y
CONFIG_CRYPTO_CBC=y
CONFIG_CRYPTO_ECB=y
CONFIG_CRYPTO_PCBC=y
CONFIG_CRYPTO_MD5=y
CONFIG_CRYPTO_DES=y
# CONFIG_CRYPTO_ANSI_CPRNG is not set
# CONFIG_CRYPTO_HW is not set
......@@ -186,6 +186,16 @@ config ISS4xx
help
This option enables support for the IBM ISS simulation environment
config CURRITUCK
bool "IBM Currituck (476fpe) Support"
depends on PPC_47x
default n
select SWIOTLB
select 476FPE
select PPC4xx_PCI_EXPRESS
help
This option enables support for the IBM Currituck (476fpe) evaluation board
config ICON
bool "Icon"
depends on 44x
......
......@@ -10,3 +10,4 @@ obj-$(CONFIG_XILINX_VIRTEX_5_FXT) += virtex.o
obj-$(CONFIG_XILINX_ML510) += virtex_ml510.o
obj-$(CONFIG_ISS4xx) += iss4xx.o
obj-$(CONFIG_CANYONLANDS)+= canyonlands.o
obj-$(CONFIG_CURRITUCK) += currituck.o
/*
* Currituck board specific routines
*
* Copyright © 2011 Tony Breeds IBM Corporation
*
* Based on earlier code:
* Matt Porter <mporter@kernel.crashing.org>
* Copyright 2002-2005 MontaVista Software Inc.
*
* Eugene Surovegin <eugene.surovegin@zultys.com> or <ebs@ebshome.net>
* Copyright (c) 2003-2005 Zultys Technologies
*
* Rewritten and ported to the merged powerpc tree:
* Copyright 2007 David Gibson <dwg@au1.ibm.com>, IBM Corporation.
* Copyright © 2011 David Kliekamp IBM Corporation
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version.
*/
#include <linux/init.h>
#include <linux/memblock.h>
#include <linux/of.h>
#include <linux/of_platform.h>
#include <linux/rtc.h>
#include <asm/machdep.h>
#include <asm/prom.h>
#include <asm/udbg.h>
#include <asm/time.h>
#include <asm/uic.h>
#include <asm/ppc4xx.h>
#include <asm/mpic.h>
#include <asm/mmu.h>
#include <linux/pci.h>
static __initdata struct of_device_id ppc47x_of_bus[] = {
{ .compatible = "ibm,plb4", },
{ .compatible = "ibm,plb6", },
{ .compatible = "ibm,opb", },
{ .compatible = "ibm,ebc", },
{},
};
/* The EEPROM is missing and the default values are bogus. This forces USB in
* to EHCI mode */
static void __devinit quirk_ppc_currituck_usb_fixup(struct pci_dev *dev)
{
if (of_machine_is_compatible("ibm,currituck")) {
pci_write_config_dword(dev, 0xe0, 0x0114231f);
pci_write_config_dword(dev, 0xe4, 0x00006c40);
}
}
DECLARE_PCI_FIXUP_HEADER(0x1033, 0x0035, quirk_ppc_currituck_usb_fixup);
static int __init ppc47x_device_probe(void)
{
of_platform_bus_probe(NULL, ppc47x_of_bus, NULL);
return 0;
}
machine_device_initcall(ppc47x, ppc47x_device_probe);
/* We can have either UICs or MPICs */
static void __init ppc47x_init_irq(void)
{
struct device_node *np;
/* Find top level interrupt controller */
for_each_node_with_property(np, "interrupt-controller") {
if (of_get_property(np, "interrupts", NULL) == NULL)
break;
}
if (np == NULL)
panic("Can't find top level interrupt controller");
/* Check type and do appropriate initialization */
if (of_device_is_compatible(np, "chrp,open-pic")) {
/* The MPIC driver will get everything it needs from the
* device-tree, just pass 0 to all arguments
*/
struct mpic *mpic =
mpic_alloc(np, 0, MPIC_PRIMARY, 0, 0, " MPIC ");
BUG_ON(mpic == NULL);
mpic_init(mpic);
ppc_md.get_irq = mpic_get_irq;
} else
panic("Unrecognized top level interrupt controller");
}
#ifdef CONFIG_SMP
static void __cpuinit smp_ppc47x_setup_cpu(int cpu)
{
mpic_setup_this_cpu();
}
static int __cpuinit smp_ppc47x_kick_cpu(int cpu)
{
struct device_node *cpunode = of_get_cpu_node(cpu, NULL);
const u64 *spin_table_addr_prop;
u32 *spin_table;
extern void start_secondary_47x(void);
BUG_ON(cpunode == NULL);
/* Assume spin table. We could test for the enable-method in
* the device-tree but currently there's little point as it's
* our only supported method
*/
spin_table_addr_prop =
of_get_property(cpunode, "cpu-release-addr", NULL);
if (spin_table_addr_prop == NULL) {
pr_err("CPU%d: Can't start, missing cpu-release-addr !\n",
cpu);
return 1;
}
/* Assume it's mapped as part of the linear mapping. This is a bit
* fishy but will work fine for now
*
* XXX: Is there any reason to assume differently?
*/
spin_table = (u32 *)__va(*spin_table_addr_prop);
pr_debug("CPU%d: Spin table mapped at %p\n", cpu, spin_table);
spin_table[3] = cpu;
smp_wmb();
spin_table[1] = __pa(start_secondary_47x);
mb();
return 0;
}
static struct smp_ops_t ppc47x_smp_ops = {
.probe = smp_mpic_probe,
.message_pass = smp_mpic_message_pass,
.setup_cpu = smp_ppc47x_setup_cpu,
.kick_cpu = smp_ppc47x_kick_cpu,
.give_timebase = smp_generic_give_timebase,
.take_timebase = smp_generic_take_timebase,
};
static void __init ppc47x_smp_init(void)
{
if (mmu_has_feature(MMU_FTR_TYPE_47x))
smp_ops = &ppc47x_smp_ops;
}
#else /* CONFIG_SMP */
static void __init ppc47x_smp_init(void) { }
#endif /* CONFIG_SMP */
static void __init ppc47x_setup_arch(void)
{
/* No need to check the DMA config as we /know/ our windows are all of
* RAM. Lets hope that doesn't change */
#ifdef CONFIG_SWIOTLB
if (memblock_end_of_DRAM() > 0xffffffff) {
ppc_swiotlb_enable = 1;
set_pci_dma_ops(&swiotlb_dma_ops);
ppc_md.pci_dma_dev_setup = pci_dma_dev_setup_swiotlb;
}
#endif
ppc47x_smp_init();
}
/*
* Called very early, MMU is off, device-tree isn't unflattened
*/
static int __init ppc47x_probe(void)
{
unsigned long root = of_get_flat_dt_root();
if (!of_flat_dt_is_compatible(root, "ibm,currituck"))
return 0;
return 1;
}
/* Use USB controller should have been hardware swizzled but it wasn't :( */
static void ppc47x_pci_irq_fixup(struct pci_dev *dev)
{
if (dev->vendor == 0x1033 && (dev->device == 0x0035 ||
dev->device == 0x00e0)) {
dev->irq = irq_create_mapping(NULL, 47);
pr_info("%s: Mapping irq 47 %d\n", __func__, dev->irq);
}
}
define_machine(ppc47x) {
.name = "PowerPC 47x",
.probe = ppc47x_probe,
.progress = udbg_progress,
.init_IRQ = ppc47x_init_irq,
.setup_arch = ppc47x_setup_arch,
.pci_irq_fixup = ppc47x_pci_irq_fixup,
.restart = ppc4xx_reset_system,
.calibrate_decr = generic_calibrate_decr,
};
Markdown is supported
0%
or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment