From 8cbd569f74d8929387730e45b0d6e993b1365c02 Mon Sep 17 00:00:00 2001 From: David Hendricks Date: Fri, 1 Dec 2017 20:49:48 -0800 Subject: cavium: Add CN81xx SoC and eval board support This adds Cavium CN81xx SoC and SFF EVB files. Code is based off of Cavium's Octeon-TX SDK: https://github.com/Cavium-Open-Source-Distributions/OCTEON-TX-SDK BDK coreboot differences: bootblock: - Get rid of BDK header - Add Kconfig for link address - Move CAR setup code into assembly - Move unaligned memory access enable into assembly - Implement custom bootblock entry function - Add CLIB and CSIB blobs romstage: - Use minimal DRAM init only devicetree: - Convert FTD to static C file containing key value pairs Tested on CN81xx: - Boots to payload - Tested with GNU/Linux 4.16.3 - All hardware is usable (after applying additional commits) Implemented in future commits: - Vboot integration - MMU suuport - L2 Cache handling - ATF from external repo - Devicetree patching - Extended DRAM testing - UART init Not working: - Booting a payload - Booting upstream ATF TODO: - Configuration straps Change-Id: I47b4412d29203b45aee49bfa026c1d86ef7ce688 Signed-off-by: David Hendricks Signed-off-by: Patrick Rudolph Reviewed-on: https://review.coreboot.org/23037 Tested-by: build bot (Jenkins) Reviewed-by: David Hendricks --- src/soc/cavium/cn81xx/cpu.c | 26 ++++++++++++++++++++++++++ 1 file changed, 26 insertions(+) create mode 100644 src/soc/cavium/cn81xx/cpu.c (limited to 'src/soc/cavium/cn81xx/cpu.c') diff --git a/src/soc/cavium/cn81xx/cpu.c b/src/soc/cavium/cn81xx/cpu.c new file mode 100644 index 0000000000..c054aa8987 --- /dev/null +++ b/src/soc/cavium/cn81xx/cpu.c @@ -0,0 +1,26 @@ +/* + * This file is part of the coreboot project. + * + * Copyright 2018-present Facebook, Inc. + * + * 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; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#include +#include +#include +#include + +/* Return the number of cores available in the chip */ +size_t cpu_get_num_cores(void) +{ + uint64_t available = read64((void *)0x87e006001738ll); + return bdk_dpop(available); +} -- cgit v1.2.3