From 8c8c377584742755ca7a2f490e77d0cd8da36bee Mon Sep 17 00:00:00 2001 From: Furquan Shaikh Date: Wed, 19 Feb 2014 11:35:30 -0800 Subject: libpayload: Add support for arm64 in libpayload Basic support for arm64 is enabled in libpayload. Features added: 1) mem* operations in assembly. 2) Basic exception handling and support for testing exceptions. 3) Caching support. Tested with arm64-generic board compilation. BUG=None BRANCH=None TEST=Compilation successful Original-Change-Id: I4e86301f9c6383abc078e2b70071fb84bd6e4741 Original-Signed-off-by: Furquan Shaikh Original-Reviewed-on: https://chromium-review.googlesource.com/187067 Original-Tested-by: Furquan Shaikh Original-Reviewed-by: Aaron Durbin Original-Commit-Queue: Furquan Shaikh (cherry picked from commit a70d13f3d225535843ab352290eab2e1ec7a9b4b) Signed-off-by: Marc Jones Change-Id: Ie3affe6a2bdd4fed3058de739d4c6aa573e5b251 Reviewed-on: http://review.coreboot.org/8063 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer Reviewed-by: Furquan Shaikh --- payloads/libpayload/arch/arm64/sysinfo.c | 64 ++++++++++++++++++++++++++++++++ 1 file changed, 64 insertions(+) create mode 100644 payloads/libpayload/arch/arm64/sysinfo.c (limited to 'payloads/libpayload/arch/arm64/sysinfo.c') diff --git a/payloads/libpayload/arch/arm64/sysinfo.c b/payloads/libpayload/arch/arm64/sysinfo.c new file mode 100644 index 0000000000..6d204e2dc7 --- /dev/null +++ b/payloads/libpayload/arch/arm64/sysinfo.c @@ -0,0 +1,64 @@ +/* + * This file is part of the libpayload project. + * + * Copyright (C) 2008 Advanced Micro Devices, Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include +#include +#include + +/** + * This is a global structure that is used through the library - we set it + * up initially with some dummy values - hopefully they will be overridden. + */ +struct sysinfo_t lib_sysinfo = { + .cpu_khz = 200, +}; + +int lib_get_sysinfo(void) +{ + int ret; + + /* Get the CPU speed (for delays). */ + lib_sysinfo.cpu_khz = get_cpu_speed(); + + /* Get information from the coreboot tables, + * if they exist */ + + ret = get_coreboot_info(&lib_sysinfo); + + if (!lib_sysinfo.n_memranges) { + /* If we can't get a good memory range, use the default. */ + lib_sysinfo.n_memranges = 1; + + lib_sysinfo.memrange[0].base = 0; + lib_sysinfo.memrange[0].size = 1024 * 1024; + lib_sysinfo.memrange[0].type = CB_MEM_RAM; + } + + return ret; +} -- cgit v1.2.3