From 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 Mon Sep 17 00:00:00 2001 From: Yunhong Jiang Date: Tue, 4 Aug 2015 12:17:53 -0700 Subject: Add the rt linux 4.1.3-rt3 as base Import the rt linux 4.1.3-rt3 as OPNFV kvm base. It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and the base is: commit 0917f823c59692d751951bf5ea699a2d1e2f26a2 Author: Sebastian Andrzej Siewior Date: Sat Jul 25 12:13:34 2015 +0200 Prepare v4.1.3-rt3 Signed-off-by: Sebastian Andrzej Siewior We lose all the git history this way and it's not good. We should apply another opnfv project repo in future. Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423 Signed-off-by: Yunhong Jiang --- kernel/arch/powerpc/boot/treeboot-iss4xx.c | 77 ++++++++++++++++++++++++++++++ 1 file changed, 77 insertions(+) create mode 100644 kernel/arch/powerpc/boot/treeboot-iss4xx.c (limited to 'kernel/arch/powerpc/boot/treeboot-iss4xx.c') diff --git a/kernel/arch/powerpc/boot/treeboot-iss4xx.c b/kernel/arch/powerpc/boot/treeboot-iss4xx.c new file mode 100644 index 000000000..329e710fe --- /dev/null +++ b/kernel/arch/powerpc/boot/treeboot-iss4xx.c @@ -0,0 +1,77 @@ +/* + * Copyright 2010 Ben. Herrenschmidt, 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. + * + * 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); + +static u32 ibm4xx_memstart; + +static void iss_4xx_fixups(void) +{ + void *memory; + u32 reg[3]; + + memory = finddevice("/memory"); + if (!memory) + fatal("Can't find memory node\n"); + /* This assumes #address-cells = 2, #size-cells =1 and that */ + getprop(memory, "reg", reg, sizeof(reg)); + if (reg[2]) + /* If the device tree specifies the memory range, use it */ + ibm4xx_memstart = reg[1]; + else + /* othersize, read it from the SDRAM controller */ + ibm4xx_sdram_fixup_memsize(); +} + +static void *iss_4xx_vmlinux_alloc(unsigned long size) +{ + return (void *)ibm4xx_memstart; +} + +#define SPRN_PIR 0x11E /* Processor Indentification Register */ +void platform_init(void) +{ + unsigned long end_of_ram = 0x08000000; + unsigned long avail_ram = end_of_ram - (unsigned long)_end; + u32 pir_reg; + + simple_alloc_init(_end, avail_ram, 128, 64); + platform_ops.fixups = iss_4xx_fixups; + platform_ops.vmlinux_alloc = iss_4xx_vmlinux_alloc; + platform_ops.exit = ibm44x_dbcr_reset; + pir_reg = mfspr(SPRN_PIR); + fdt_set_boot_cpuid_phys(_dtb_start, pir_reg); + fdt_init(_dtb_start); + serial_console_init(); +} -- cgit 1.2.3-korg