From 228d55053397e6d5325ca179c7ffe331de2846d3 Mon Sep 17 00:00:00 2001 From: Tony Breeds Date: Wed, 30 Nov 2011 21:39:24 +0000 Subject: powerpc/47x: Add support for the new IBM currituck platform Based on original work by David 'Shaggy' Kleikamp. Signed-off-by: Tony Breeds Signed-off-by: Josh Boyer --- arch/powerpc/boot/Makefile | 5 +- arch/powerpc/boot/dts/currituck.dts | 237 +++++++++++++++++++++++++++++++++ arch/powerpc/boot/treeboot-currituck.c | 119 +++++++++++++++++ arch/powerpc/boot/wrapper | 3 + 4 files changed, 363 insertions(+), 1 deletion(-) create mode 100644 arch/powerpc/boot/dts/currituck.dts create mode 100644 arch/powerpc/boot/treeboot-currituck.c (limited to 'arch/powerpc/boot') 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 + * Copyright 2002-2005 MontaVista Software Inc. + * + * Eugene Surovegin or + * 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 +#include +#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" ;; -- cgit v1.2.3