Files
system76-coreboot/src/soc/cavium/common/cbmem.c
David Hendricks 8cbd569f74 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 <dhendricks@fb.com>
Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com>
Reviewed-on: https://review.coreboot.org/23037
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: David Hendricks <david.hendricks@gmail.com>
2018-07-10 07:01:57 +00:00

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C

/*
* This file is part of the coreboot project.
*
* Copyright 2014 Rockchip 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 <cbmem.h>
#include <soc/addressmap.h>
#include <soc/sdram.h>
#include <stdlib.h>
#include <symbols.h>
void *cbmem_top(void)
{
return (void *)min((uintptr_t)_dram + sdram_size_mb() * MiB,
MAX_DRAM_ADDRESS);
}