diff options
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/powerpc/boot/Makefile | 5 | ||||
| -rw-r--r-- | arch/powerpc/boot/dts/currituck.dts | 237 | ||||
| -rw-r--r-- | arch/powerpc/boot/treeboot-currituck.c | 119 | ||||
| -rwxr-xr-x | arch/powerpc/boot/wrapper | 3 | ||||
| -rw-r--r-- | arch/powerpc/configs/44x/currituck_defconfig | 110 | ||||
| -rw-r--r-- | arch/powerpc/platforms/44x/Kconfig | 10 | ||||
| -rw-r--r-- | arch/powerpc/platforms/44x/Makefile | 1 | ||||
| -rw-r--r-- | arch/powerpc/platforms/44x/currituck.c | 204 |
8 files changed, 688 insertions, 1 deletions
diff --git a/arch/powerpc/boot/Makefile b/arch/powerpc/boot/Makefile index 72ee8c1fba48..ff0057fc48c4 100644 --- a/arch/powerpc/boot/Makefile +++ b/arch/powerpc/boot/Makefile @@ -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 diff --git a/arch/powerpc/boot/dts/currituck.dts b/arch/powerpc/boot/dts/currituck.dts new file mode 100644 index 000000000000..b801dd06e573 --- /dev/null +++ b/arch/powerpc/boot/dts/currituck.dts @@ -0,0 +1,237 @@ +/* + * 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; + }; +}; diff --git a/arch/powerpc/boot/treeboot-currituck.c b/arch/powerpc/boot/treeboot-currituck.c new file mode 100644 index 000000000000..925ae43b7467 --- /dev/null +++ b/arch/powerpc/boot/treeboot-currituck.c @@ -0,0 +1,119 @@ +/* + * 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(); +} diff --git a/arch/powerpc/boot/wrapper b/arch/powerpc/boot/wrapper index c74531af72c0..87f4950f38b1 100755 --- a/arch/powerpc/boot/wrapper +++ b/arch/powerpc/boot/wrapper @@ -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" ;; diff --git a/arch/powerpc/configs/44x/currituck_defconfig b/arch/powerpc/configs/44x/currituck_defconfig new file mode 100644 index 000000000000..4192322f8a7f --- /dev/null +++ b/arch/powerpc/configs/44x/currituck_defconfig @@ -0,0 +1,110 @@ +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 diff --git a/arch/powerpc/platforms/44x/Kconfig b/arch/powerpc/platforms/44x/Kconfig index f0be6e0b164d..5d5aaf6c91aa 100644 --- a/arch/powerpc/platforms/44x/Kconfig +++ b/arch/powerpc/platforms/44x/Kconfig @@ -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 diff --git a/arch/powerpc/platforms/44x/Makefile b/arch/powerpc/platforms/44x/Makefile index 553db6007217..d03833abec09 100644 --- a/arch/powerpc/platforms/44x/Makefile +++ b/arch/powerpc/platforms/44x/Makefile @@ -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 diff --git a/arch/powerpc/platforms/44x/currituck.c b/arch/powerpc/platforms/44x/currituck.c new file mode 100644 index 000000000000..1fdf56916873 --- /dev/null +++ b/arch/powerpc/platforms/44x/currituck.c @@ -0,0 +1,204 @@ +/* + * 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, +}; |
